Iceland: Hekla volcano could be ready for another eruption, measurements suggest – Published 30 Mar 2017 1730z (GMT/UTC)

Mount Hekla Volcano

“More pressure is in the magma chambers underneath the mountain than before the last two eruptions in 1991 and 2000” says geophysicist Pall Einarsson at the University of Iceland

 

Mount Hekla

“Most measurements that we have today indicate that Hekla is ready for an eruption, but we do not know what factor will set the eruption off,” says geophysicist Pall Einarsson at the University of Iceland. More pressure is in the magma chambers underneath the mountain than before the last two eruptions in 1991 and 2000. It’s however impossible to say whether a Hekla eruption is to be expected soon or not, as eruptions come without much warning and with little correlation to other volcanic or earthquake activities in South Iceland. Today marks the 70th anniversary of the greatest Hekla eruption known to man, which lasted 13 months. There have been five eruptions in Mount Hekla since 1970.

RSOE March 30 2017 12:35 PM (UTC).

“1991

On January 17th Helka violently erupted with a cloud of ash and tephra that reached an altitude of 39,360 ft. (12 km). During this eruption a summit fissure and a main crater were created and from these lava flows extended down the southeastern and northwestern slopes. Lava fountains in these craters reached a height of 984 ft. (300m). This eruption continued until March 11th when activity once again died down”. – volcano.oregonstate.edu

From Wikipedia, the free encyclopedia

“2000

A lava field on Hekla in July 2000

The most recent eruption was relatively short, it started at 18:18 on 26 February 2000 and lasted until 8 March. It was a VEI3 eruption producing a lava volume of 0.189 km3 DRE[38] / 0.29 km3[12] and 107 m3 of tephra.[12] The eruption went through four phases:

  1. initial explosive stage
  2. fire fountains
  3. bursts of Strombolian eruption
  4. effusion of lava[38]

Eruption activity was at a maximum in the first hour and by the first night the fissure on Hekla had opened to a length of 6–7 km. The steam column rose to a height of almost 15 km and ash was transported to Grímsey.[39] During this eruption, a NASA DC-8 aeroplane accidentally flew through the plume with all instruments switched on, resulting in unprecedented measurement of a young volcanic plume.[40]

Up until this eruption, it had always been assumed that Hekla was incapable of producing the most dangerous of volcanic phenomena, the pyroclastic flow. In January 2003, however, a team from the Norvol Institute in Reykjavík, under the leadership of Dr. Ármann Höskuldsson, reported that they found traces of a pyroclastic flow, roughly 5 km long, stretching down the side of the mountain. This will call for a reappraisal of volcanic eruptions of the basic rock type, which up to now were generally thought not to produce large pyroclastic flows. It will also require that the public and curious spectators who always rush to the scene at the start of a new outbreak, be kept much further away from the volcanic activity than was thought necessary during previous outbreaks.

Future eruptions

Steam at the summit of Hekla

In January 2010 there were reports of patches near to the summit not covered with snow[41] and that the lava chamber pressure had reached levels similar to those before Hekla last erupted[42] however no eruption subsequently occurred.

International media reported activity that is interpreted as being close to another eruption in July 2011[43] while Icelandic news sources claimed otherwise.[44] The Icelandic state news web site, ruv.is, regularly warns travellers of imminent eruptions.[45][46][47]

In March 2013 a Civil Protection State of Uncertainty was issued due to an unusual cluster of seven micro-earthquakes at a depth of approximately 11 km, to the NE of the volcano, although there were no signs of ground deformation.[48] People were warned against travelling to the mountain, and the air traffic surveillance level was increased to yellow temporarily.[49][50] In April the volcano underwent unusual rapid inflation, particularly in the northern region of the volcano, that some commentators regarded as making an imminent eruption more likely.[51][52]”

For  more see:

Icelandic Meteorological Office

Wikipedia, the free encyclopedia

volcano.oregonstate.edu

Do not use any information on this site for life or death decisions. All information is intended as supplementary to official sources. Kindly refer to your country’s official weather agency/government website for local warnings, advisories and bulletins.

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Australia (QLD): Tropical Cyclone DEBBIE (13P) 260900Z position nr 18.4S 151.0E, moving WSW 03kt (JTWC) – Published 26 Mar 2017 1253z (GMT/UTC)

Tropical Cyclone Debbie (13P)

Tropical cyclone Debbie moving towards the coast, expected to intensify into a category 3 system this evening – Brisbane TCWC

MAXIMUM SIGNIFICANT WAVE HEIGHT AT 260600Z IS 18 FEET

IDQ20023

Australian Government Bureau of Meteorology
Queensland
Tropical Cyclone Warning Centre

Media: The Standard Emergency Warning Signal should NOT be used with this warning.

TOP PRIORITY FOR IMMEDIATE BROADCAST

TROPICAL CYCLONE ADVICE NUMBER 15

Issued at 7:49 pm EST on Sunday 26 March 2017

Headline:

Tropical cyclone Debbie moving towards the coast, expected to intensify into a category 3 system this evening.

Areas Affected:

Warning Zone

Lucinda to St Lawrence including Townsville, Mackay, and the Whitsunday Islands.

Watch Zone

Innisfail to Lucinda, extending inland to Charters Towers and Mount Coolon.

Cancelled Zone

None.

Details of Tropical Cyclone Debbie at 7:00 pm AEST:

Intensity: Category 2, sustained winds near the centre of 110 kilometres per hour with wind gusts to 155 kilometres per hour.

Location: within 30 kilometres of 18.4 degrees South 150.9 degrees East, estimated to be 440 kilometres east northeast of Townsville and 330 kilometres east northeast of Bowen.

Movement: west southwest at 7 kilometres per hour.

Tropical cyclone Debbie is moving west-southwest towards the north Queensland coast and is currently forecast to intensify into a category 3 system tonight. Tropical cyclone Debbie is likely continue on a similar track and intensify further prior to making landfall between Rollingstone and Proserpine on Tuesday morning.

Hazards:

GALES are expected to develop about the exposed coast and islands between Ayr and Mackay tonight, and could extend to remaining areas between Lucinda and St Lawrence on Monday. GALES could extend further north to coastal areas between Innisfail and Lucinda during Monday evening or Tuesday morning, as well as further inland to Charters Towers and Mount Coolon.

DESTRUCTIVE WINDS with gusts over 125 km/h may develop about the exposed coast and islands between Ayr and Mackay as early as Monday morning. These DESTRUCTIVE WINDS may then gradually extend further north to Lucinda during the day Monday and overnight into Tuesday.

The VERY DESTRUCTIVE CORE of Tropical Cyclone Debbie is currently expected to cross the coast between Rollingstone and Proserpine on Tuesday morning, most likely as a CATEGORY 4 tropical cyclone, with wind gusts up to 260 km/h near the centre.

Abnormally high tides are expected to occur south of Proserpine on the high tides on Monday.

Residents between and between Lucinda and Mackay are specifically warned of the dangerous storm tide as the cyclone crosses the coast on Tuesday morning. The sea is likely to rise steadily up to a level well above the normal tide, with damaging waves and flooding of some low-lying areas close to the shoreline.as the cyclone approaches the coast on Tuesday. Large waves may also develop along the beachfront. People living in areas likely to be affected by this flooding should take measures to protect their property as much as possible and be prepared to follow instructions regarding evacuation of the area if advised to do so by the authorities.

Areas of heavy rain with the potential to cause severe flash flooding are expected to develop about parts of the northern and central Queensland coast and adjacent inland areas late on Sunday and continue through Monday and Tuesday. Widespread daily rainfall totals of 200 mm, with isolated falls of 400 mm, is also likely to lead to major river flooding over a broad area next week, and a Flood Watch is current for coastal catchments between Cardwell and Gladstone, extending inland to the eastern Gulf River catchments.

Recommended Action:

People between Ayr and St Lawrence should immediately commence or continue preparations, especially securing boats and property using available daylight hours.

– For cyclone preparedness and safety advice, visit Queensland’s Disaster Management Services website (www.disaster.qld.gov.au)

– For emergency assistance call the Queensland State Emergency Service on 132 500 (for assistance with storm damage, rising flood water, fallen trees on buildings or roof damage).

People between Cairns and Ayr, and inland to Charters Towers and Mount Coolon should consider what action they will need to take if the cyclone threat increases.

– Information is available from your local government

– For cyclone preparedness and safety advice, visit Queensland’s Disaster Management Services website (www.disaster.qld.gov.au)

– For emergency assistance call the Queensland State Emergency Service on 132 500 (for assistance with storm damage, rising flood water, fallen trees on buildings or roof damage).

Next Advice:

The next advice will be issued by 11:00 pm AEST Sunday 26 March.

This warning is also available through TV and Radio Broadcasts; the Bureau’s website at www.bom.gov.au or call 1300 659 212. The Bureau and the State Emergency Service would appreciate this warning being broadcast regularly.

================================================================================

Tropical Storm Risk (TSR)

SW Pacific: TSR Storm Alert issued at 26 Mar, 2017 6:00 GMT

Tropical Cyclone DEBBIE is currently located near 18.3 S 151.2 E with maximum 1-min sustained winds of 70 kts (81 mph). DEBBIE is a category 1 storm on the Saffir Simpson Hurricane Wind Scale. DEBBIE is forecast to affect land to the following likelihood(s) at the given lead time(s):

Red Alert Country(s) or Province(s)
Australia
probability for CAT 1 or above is 50% in about 36 hours
probability for TS is 90% within 12 hours
Red Alert City(s) and Town(s)
Bowen (20.0 S, 148.2 E)
probability for CAT 1 or above is 45% in about 36 hours
probability for TS is 75% in about 48 hours

Yellow Alert City(s) and Town(s)
Mackay (21.3 S, 149.1 E)
probability for TS is 65% in about 36 hours
Townsville (19.2 S, 146.8 E)
probability for CAT 1 or above is 30% in about 48 hours
probability for TS is 45% in about 36 hours
Charters Towers (20.0 S, 146.3 E)
probability for CAT 1 or above is 25% in about 48 hours
probability for TS is 45% in about 48 hours
Ingham (18.5 S, 146.1 E)
probability for CAT 1 or above is 10% in about 48 hours
probability for TS is 35% in about 48 hours

Note that
Red Alert (Severe) is CAT 1 or above to between 31% and 100% probability.
Yellow Alert (Elevated) is CAT 1 or above to between 10% and 30% probability, or TS to above 50% probability.
CAT 1 means Tropical Cyclone strength winds of at least 74 mph, 119 km/h or 64 knots 1-min sustained.
TS means Tropical Storm strength winds of at least 39 mph, 63 km/h or 34 knots 1-min sustained.

(Image: TSR)

Joint Typhoon Warning Center (JTWC)

 

 

WTPS31 PGTW 260900
MSGID/GENADMIN/JOINT TYPHOON WRNCEN PEARL HARBOR HI//
SUBJ/TROPICAL CYCLONE 13P (DEBBIE) WARNING NR 004//
RMKS/
1. TROPICAL CYCLONE 13P (DEBBIE) WARNING NR 004
01 ACTIVE TROPICAL CYCLONE IN SOUTHPAC
MAX SUSTAINED WINDS BASED ON ONE-MINUTE AVERAGE
WIND RADII VALID OVER OPEN WATER ONLY

WARNING POSITION:
260600Z — NEAR 18.3S 151.2E
MOVEMENT PAST SIX HOURS – 250 DEGREES AT 03 KTS
POSITION ACCURATE TO WITHIN 020 NM
POSITION BASED ON CENTER LOCATED BY SATELLITE
PRESENT WIND DISTRIBUTION:
MAX SUSTAINED WINDS – 070 KT, GUSTS 085 KT
WIND RADII VALID OVER OPEN WATER ONLY
RADIUS OF 064 KT WINDS – 035 NM NORTHEAST QUADRANT
035 NM SOUTHEAST QUADRANT
035 NM SOUTHWEST QUADRANT
035 NM NORTHWEST QUADRANT
RADIUS OF 050 KT WINDS – 080 NM NORTHEAST QUADRANT
075 NM SOUTHEAST QUADRANT
075 NM SOUTHWEST QUADRANT
070 NM NORTHWEST QUADRANT
RADIUS OF 034 KT WINDS – 160 NM NORTHEAST QUADRANT
180 NM SOUTHEAST QUADRANT
180 NM SOUTHWEST QUADRANT
125 NM NORTHWEST QUADRANT
REPEAT POSIT: 18.3S 151.2E

FORECASTS:
12 HRS, VALID AT:
261800Z — 18.6S 150.5E
MAX SUSTAINED WINDS – 085 KT, GUSTS 105 KT
WIND RADII VALID OVER OPEN WATER ONLY
RADIUS OF 064 KT WINDS – 045 NM NORTHEAST QUADRANT
040 NM SOUTHEAST QUADRANT
030 NM SOUTHWEST QUADRANT
025 NM NORTHWEST QUADRANT
RADIUS OF 050 KT WINDS – 075 NM NORTHEAST QUADRANT
075 NM SOUTHEAST QUADRANT
070 NM SOUTHWEST QUADRANT
065 NM NORTHWEST QUADRANT
RADIUS OF 034 KT WINDS – 150 NM NORTHEAST QUADRANT
170 NM SOUTHEAST QUADRANT
140 NM SOUTHWEST QUADRANT
130 NM NORTHWEST QUADRANT
VECTOR TO 24 HR POSIT: 245 DEG/ 05 KTS

24 HRS, VALID AT:
270600Z — 19.0S 149.5E
MAX SUSTAINED WINDS – 095 KT, GUSTS 115 KT
WIND RADII VALID OVER OPEN WATER ONLY
RADIUS OF 064 KT WINDS – 045 NM NORTHEAST QUADRANT
045 NM SOUTHEAST QUADRANT
030 NM SOUTHWEST QUADRANT
035 NM NORTHWEST QUADRANT
RADIUS OF 050 KT WINDS – 075 NM NORTHEAST QUADRANT
075 NM SOUTHEAST QUADRANT
055 NM SOUTHWEST QUADRANT
065 NM NORTHWEST QUADRANT
RADIUS OF 034 KT WINDS – 145 NM NORTHEAST QUADRANT
160 NM SOUTHEAST QUADRANT
100 NM SOUTHWEST QUADRANT
115 NM NORTHWEST QUADRANT
VECTOR TO 36 HR POSIT: 250 DEG/ 07 KTS

36 HRS, VALID AT:
271800Z — 19.5S 148.2E
MAX SUSTAINED WINDS – 100 KT, GUSTS 125 KT
WIND RADII VALID OVER OPEN WATER ONLY
RADIUS OF 064 KT WINDS – 040 NM NORTHEAST QUADRANT
040 NM SOUTHEAST QUADRANT
025 NM SOUTHWEST QUADRANT
025 NM NORTHWEST QUADRANT
RADIUS OF 050 KT WINDS – 065 NM NORTHEAST QUADRANT
065 NM SOUTHEAST QUADRANT
035 NM SOUTHWEST QUADRANT
045 NM NORTHWEST QUADRANT
RADIUS OF 034 KT WINDS – 135 NM NORTHEAST QUADRANT
135 NM SOUTHEAST QUADRANT
060 NM SOUTHWEST QUADRANT
085 NM NORTHWEST QUADRANT
VECTOR TO 48 HR POSIT: 250 DEG/ 07 KTS

EXTENDED OUTLOOK:
48 HRS, VALID AT:
280600Z — 20.0S 146.8E
MAX SUSTAINED WINDS – 070 KT, GUSTS 085 KT
WIND RADII VALID OVER OPEN WATER ONLY
RADIUS OF 064 KT WINDS – 020 NM NORTHEAST QUADRANT
030 NM SOUTHEAST QUADRANT
015 NM SOUTHWEST QUADRANT
015 NM NORTHWEST QUADRANT
RADIUS OF 050 KT WINDS – 050 NM NORTHEAST QUADRANT
055 NM SOUTHEAST QUADRANT
030 NM SOUTHWEST QUADRANT
045 NM NORTHWEST QUADRANT
RADIUS OF 034 KT WINDS – 095 NM NORTHEAST QUADRANT
110 NM SOUTHEAST QUADRANT
060 NM SOUTHWEST QUADRANT
050 NM NORTHWEST QUADRANT
VECTOR TO 72 HR POSIT: 235 DEG/ 04 KTS

72 HRS, VALID AT:
290600Z — 20.9S 145.3E
MAX SUSTAINED WINDS – 035 KT, GUSTS 045 KT
WIND RADII VALID OVER OPEN WATER ONLY
DISSIPATING AS A SIGNIFICANT TROPICAL CYCLONE OVER LAND
VECTOR TO 96 HR POSIT: 215 DEG/ 02 KTS

LONG RANGE OUTLOOK:

96 HRS, VALID AT:
300600Z — 21.6S 144.8E
MAX SUSTAINED WINDS – 025 KT, GUSTS 035 KT
WIND RADII VALID OVER OPEN WATER ONLY
DISSIPATED AS A SIGNIFICANT TROPICAL CYCLONE OVER LAND

REMARKS:
260900Z POSITION NEAR 18.4S 151.0E.
TROPICAL CYCLONE 13P (DEBBIE), LOCATED APPROXIMATELY 320 NM EAST-
SOUTHEAST OF CAIRNS, AUSTRALIA, HAS TRACKED WEST-SOUTHWESTWARD AT
03 KNOTS OVER THE PAST SIX HOURS. ANIMATED MULTISPECTRAL SATELLITE
IMAGERY DEPICTS AN ORGANIZED LOW-LEVEL CIRCULATION CENTER WITH
FLARING DEEP CONVECTION WRAPPING INTO THE SYSTEM. A 260545Z SSMIS 37
GHZ IMAGE REVEALS TIGHTLY CURVED CONVECTIVE BANDING, A LARGE
MICROWAVE EYE, AND SUPPORTS THE CURRENT JTWC BEST TRACK POSITION
WITH HIGH CONFIDENCE. THE INITIAL INTENSITY OF 70 KNOTS IS SUPPORTED
BY MULTI-AGENCY DVORAKS OF T3.5 (55 TO 70 KNOTS) LATEST SATCON
ESTIMATES AROUND 65 KNOTS, AND THE IMPROVED CONVECTIVE ORGANIZATION.
UPPER-LEVEL ANALYSIS CONTINUES TO INDICATE A VERY FAVORABLE
ENVIRONMENT FOR DEVELOPMENT WITH RADIAL OUTFLOW AND LOW VERTICAL
WIND SHEAR. HOWEVER, RECENT TPW IMAGERY SHOWS SOME DRY CONTINENTAL
AIR BEING ENTRAINED INTO THE SYSTEM, WHICH HAS SLOWED THE
INTENSIFICATION OVER THE PAST 12 HOURS. TC DEBBIE HAS BEEN TRACKING
SLOWLY SOUTHWESTWARD BETWEEN THE WESTERN PERIPHERY OF A NER AND A
STR TO THE SOUTHWEST. THIS SYSTEM WILL REMAIN UNDER THE SHARED
STEERING INFLUENCE OF BOTH FEATURES THROUGH THE FORECAST PERIOD,
WHICH WILL MAINTAIN ITS SOUTHWESTWARD TRAJECTORY. FAVORABLE
ENVIRONMENTAL CONDITIONS WILL PERSIST UNTIL TC 13P MAKES LANDFALL
SHORTLY AFTER TAU 36, ALLOWING FOR A PERIOD OF STEADY
INTENSIFICATION. AS THE SYSTEM TRACKS INLAND, THE FRICTIONAL EFFECTS
OF RUGGED TERRAIN WILL RAPIDLY ERODE THE CYCLONE LEADING TO COMPLETE
DISSIPATION BY THE END OF THE FORECAST PERIOD. DYNAMIC MODEL
GUIDANCE HAVE CONTINUED TO CONSOLIDATE ON THE FORECAST TRACK LENDING
HIGH CONFIDENCE TO THE JTWC FORECAST TRACK. MAXIMUM SIGNIFICANT WAVE
HEIGHT AT 260600Z IS 18 FEET. NEXT WARNINGS AT 262100Z AND 270900Z.//
NNNN

 

MARITIME/SHIPPING

WTAU05 APRF 260653
IDW23100
40:3:1:24:16S099E999:11:00
SECURITE

HIGH SEAS WEATHER WARNING FOR METAREA 10 ISSUED BY THE
AUSTRALIAN BUREAU OF METEOROLOGY TROPICAL CYCLONE WARNING CENTRE PERTH
AT 0653UTC 26 MARCH 2017

GALE WARNING

Please be aware, wind gusts can be a further 40 percent stronger than the
averages given here, and maximum waves may be up to twice the height.

SITUATION
At 0600 UTC Tropical Cyclone Caleb was centred within 30 nautical miles of
latitude sixteen decimal zero south (16.0S)
longitude ninety nine decimal four east (99.4E)
Recent movement : slow moving
Maximum winds : 45 knots
Central pressure: 994 hPa

AREA AFFECTED
Within 60 nautical miles in NE quadrant
and within 60 nautical miles in SE quadrant
and within 90 nautical miles in SW quadrant
and within 60 nautical miles in NW quadrant.

FORECAST
Maximum winds to 45 knots near the centre.

Winds above 34 knots Within 60 nautical miles in NE quadrant
and within 60 nautical miles in SE quadrant
and within 90 nautical miles in SW quadrant
and within 60 nautical miles in NW quadrant,
with rough to very rough seas and moderate to heavy swell.

Forecast positions
At 1800 UTC 26 March: Within 55 nautical miles of 16.0 south 98.8 east
Central pressure 994 hPa.
Winds to 45 knots near centre.
At 0600 UTC 27 March: Within 80 nautical miles of 16.0 south 97.7 east
Central pressure 994 hPa.
Winds to 45 knots near centre.

REMARKS
All ships in the area please send weather reports every three hours.
Regular weather observing ships use normal channels.
Other ships please use either email to tcwcwa@bom.gov.au or fax to +61892632261
or satellite using SAC1241 through Land Earth Station Burum 312 [or 212 as
appropriate] via Perth.

Next warning will be issued by 1300 UTC 26 March 2017.

WEATHER PERTH

Do not use any information on this site for life or death decisions. All information is intended as supplementary to official sources. Kindly refer to your country’s official weather agency/government website for local warnings, advisories and bulletins.

Rodrigues /Mauritius /LaReunion /Madagascar: Tropical Cyclone #Eleven (11S) 082100Z position nr 15.2S 69.8E, moving W 05kt (JTWC) – Published 08 Mar 2017 2100z (GMT/UTC)

Tropical Cyclone Eleven (11S)

MAXIMUM SIGNIFICANT WAVE HEIGHT AT 081800Z IS 14 FEET

WTXS31 PGTW 082100
MSGID/GENADMIN/JOINT TYPHOON WRNCEN PEARL HARBOR HI//
SUBJ/TROPICAL CYCLONE 11S (ELEVEN) WARNING NR 001//
RMKS/
1. TROPICAL CYCLONE 11S (ELEVEN) WARNING NR 001
01 ACTIVE TROPICAL CYCLONE IN SOUTHIO
MAX SUSTAINED WINDS BASED ON ONE-MINUTE AVERAGE
WIND RADII VALID OVER OPEN WATER ONLY

WARNING POSITION:
081800Z — NEAR 15.2S 70.1E
MOVEMENT PAST SIX HOURS – 260 DEGREES AT 05 KTS
POSITION ACCURATE TO WITHIN 060 NM
POSITION BASED ON CENTER LOCATED BY SATELLITE
PRESENT WIND DISTRIBUTION:
MAX SUSTAINED WINDS – 035 KT, GUSTS 045 KT
WIND RADII VALID OVER OPEN WATER ONLY
RADIUS OF 034 KT WINDS – 000 NM NORTHEAST QUADRANT
050 NM SOUTHEAST QUADRANT
040 NM SOUTHWEST QUADRANT
000 NM NORTHWEST QUADRANT
REPEAT POSIT: 15.2S 70.1E

FORECASTS:
12 HRS, VALID AT:
090600Z — 15.3S 69.1E
MAX SUSTAINED WINDS – 040 KT, GUSTS 050 KT
WIND RADII VALID OVER OPEN WATER ONLY
RADIUS OF 034 KT WINDS – 035 NM NORTHEAST QUADRANT
080 NM SOUTHEAST QUADRANT
090 NM SOUTHWEST QUADRANT
035 NM NORTHWEST QUADRANT
VECTOR TO 24 HR POSIT: 230 DEG/ 04 KTS

24 HRS, VALID AT:
091800Z — 15.8S 68.5E
MAX SUSTAINED WINDS – 045 KT, GUSTS 055 KT
WIND RADII VALID OVER OPEN WATER ONLY
RADIUS OF 034 KT WINDS – 070 NM NORTHEAST QUADRANT
185 NM SOUTHEAST QUADRANT
130 NM SOUTHWEST QUADRANT
055 NM NORTHWEST QUADRANT
VECTOR TO 36 HR POSIT: 195 DEG/ 06 KTS

36 HRS, VALID AT:
100600Z — 16.9S 68.2E
MAX SUSTAINED WINDS – 055 KT, GUSTS 070 KT
WIND RADII VALID OVER OPEN WATER ONLY
RADIUS OF 050 KT WINDS – 005 NM NORTHEAST QUADRANT
015 NM SOUTHEAST QUADRANT
020 NM SOUTHWEST QUADRANT
010 NM NORTHWEST QUADRANT
RADIUS OF 034 KT WINDS – 140 NM NORTHEAST QUADRANT
210 NM SOUTHEAST QUADRANT
235 NM SOUTHWEST QUADRANT
080 NM NORTHWEST QUADRANT
VECTOR TO 48 HR POSIT: 210 DEG/ 10 KTS

EXTENDED OUTLOOK:
48 HRS, VALID AT:
101800Z — 18.7S 67.1E
MAX SUSTAINED WINDS – 060 KT, GUSTS 075 KT
WIND RADII VALID OVER OPEN WATER ONLY
RADIUS OF 050 KT WINDS – 015 NM NORTHEAST QUADRANT
040 NM SOUTHEAST QUADRANT
055 NM SOUTHWEST QUADRANT
015 NM NORTHWEST QUADRANT
RADIUS OF 034 KT WINDS – 170 NM NORTHEAST QUADRANT
175 NM SOUTHEAST QUADRANT
195 NM SOUTHWEST QUADRANT
100 NM NORTHWEST QUADRANT
VECTOR TO 72 HR POSIT: 240 DEG/ 15 KTS

72 HRS, VALID AT:
111800Z — 21.8S 61.6E
MAX SUSTAINED WINDS – 065 KT, GUSTS 080 KT
WIND RADII VALID OVER OPEN WATER ONLY
RADIUS OF 064 KT WINDS – 010 NM NORTHEAST QUADRANT
010 NM SOUTHEAST QUADRANT
010 NM SOUTHWEST QUADRANT
010 NM NORTHWEST QUADRANT
RADIUS OF 050 KT WINDS – 030 NM NORTHEAST QUADRANT
045 NM SOUTHEAST QUADRANT
060 NM SOUTHWEST QUADRANT
025 NM NORTHWEST QUADRANT
RADIUS OF 034 KT WINDS – 105 NM NORTHEAST QUADRANT
195 NM SOUTHEAST QUADRANT
210 NM SOUTHWEST QUADRANT
075 NM NORTHWEST QUADRANT
VECTOR TO 96 HR POSIT: 235 DEG/ 14 KTS

LONG RANGE OUTLOOK:

96 HRS, VALID AT:
121800Z — 24.8S 56.3E
MAX SUSTAINED WINDS – 075 KT, GUSTS 090 KT
WIND RADII VALID OVER OPEN WATER ONLY
RADIUS OF 064 KT WINDS – 030 NM NORTHEAST QUADRANT
030 NM SOUTHEAST QUADRANT
030 NM SOUTHWEST QUADRANT
030 NM NORTHWEST QUADRANT
RADIUS OF 050 KT WINDS – 040 NM NORTHEAST QUADRANT
050 NM SOUTHEAST QUADRANT
070 NM SOUTHWEST QUADRANT
050 NM NORTHWEST QUADRANT
RADIUS OF 034 KT WINDS – 135 NM NORTHEAST QUADRANT
170 NM SOUTHEAST QUADRANT
205 NM SOUTHWEST QUADRANT
090 NM NORTHWEST QUADRANT
VECTOR TO 120 HR POSIT: 205 DEG/ 09 KTS

120 HRS, VALID AT:
131800Z — 28.2S 54.5E
MAX SUSTAINED WINDS – 085 KT, GUSTS 105 KT
WIND RADII VALID OVER OPEN WATER ONLY
RADIUS OF 064 KT WINDS – 040 NM NORTHEAST QUADRANT
035 NM SOUTHEAST QUADRANT
040 NM SOUTHWEST QUADRANT
035 NM NORTHWEST QUADRANT
RADIUS OF 050 KT WINDS – 055 NM NORTHEAST QUADRANT
055 NM SOUTHEAST QUADRANT
060 NM SOUTHWEST QUADRANT
060 NM NORTHWEST QUADRANT
RADIUS OF 034 KT WINDS – 095 NM NORTHEAST QUADRANT
170 NM SOUTHEAST QUADRANT
180 NM SOUTHWEST QUADRANT
095 NM NORTHWEST QUADRANT

REMARKS:
082100Z POSITION NEAR 15.2S 69.8E.
TROPICAL CYCLONE 11S (ELEVEN), LOCATED APPROXIMATELY 506 NM
SOUTH-SOUTHWEST OF DIEGO GARCIA, HAS TRACKED WESTWARD AT 05 KNOTS
OVER THE PAST SIX HOURS. ANIMATED INFRARED SATELLITE IMAGERY (IR)
AND A 081732Z AMSU 89 GHZ IMAGE DEPICT A PARTIALLY EXPOSED LOW-LEVEL
CIRCULATION CENTER (LLCC) WITH DEEP CONVECTION ALONG THE EASTERN
PERIPHERY. THE PREVIOUSLY FRAGMENTED CONVECTION HAS DEEPENED AND
CONSOLIDATED NEAR THE LLCC OVER THE LAST 6 TO 12 HOURS. THE INITIAL
POSITION IS SUPPORTED WITH HIGH CONFIDENCE BASED ON A 081732Z ASCAT
PASS SHOWING THE TIGHT LLCC. THE INITIAL INTENSITY OF 35 KNOTS IS
SUPPORTED BY THE RECENT ASCAT PASS SHOWING 35 KNOT WINDS ALONG THE
SOUTHERN PERIPHERY OF THE LLCC, AND DVORAK CURRENT INTENSITY
ESTIMATES RANGING FROM OF T2.5-3.0 FROM ALL REPORTING AGENCIES.
UPPER-LEVEL ANALYSIS INDICATES AN OVERALL FAVORABLE ENVIRONMENT FOR
DEVELOPMENT WITH A SMALL BUT DEVELOPING POINT SOURCE DIRECTLY OVER
THE SYSTEM, ACCOMPANIED BY LOW-MODERATE (15 TO 20 KNOTS) VERTICAL
WIND SHEAR (VWS). SSTS ALSO SUPPORT INTENSIFICATION WITH TEMPS
OBSERVED NEAR 30C. SINCE THE SYSTEM REMAINS RELATIVELY SHALLOW AT
THIS TIME, THE PRIMARY STEERING INFLUENCE IS THE SUB-TROPICAL RIDGE
(STR) TO THE SOUTH, STEERING TC 11S SOUTH OF DUE WEST FOR THE TIME
BEING. UPPER-LEVEL OUTFLOW FROM THE REMNANTS OF TC 09S ARE CURRENTLY
PROVIDING SOME PRESSURE ON THE WESTERN SIDE OF THE SYSTEM,
DISPLACING THE DEEPEST CONVECTION SLIGHTLY OFF THE LLCC, AND
LIMITING POTENTIAL INTENSIFICATION IN THE NEAR-TERM. THE SYSTEM IS
FORECAST TO UNDERGO SLOW INTENSIFICATION THROUGH TAU 24. AS UPPER-
LEVEL POLEWARD OUTFLOW IS REESTABLISHED BEYOND TAU 24, THE SYSTEM
WILL INTENSIFY AT A SLIGHTLY FASTER RATE, REACHING PEAK INTENSITY AT
TAU 120 AS THE SYSTEM WILL TAP INTO A STRONG POLEWARD OUTFLOW
CHANNEL AHEAD OF AN APPROACHING MID-LATITUDE TROUGH. TC11S WILL
TRACK GENERALLY WESTWARD THROUGH TAU 24 UNDER THE INFLUENCE OF THE
STEERING RIDGE TO THE SOUTH, THEN TURN SHARPLY SOUTHWEST AS IT
STRENGTHENS AND THE STEERING SHIFTS TO A NORTH-SOUTH ORIENTED RIDGE
TO THE EAST. TC 11S IS EXPECTED TO INCREASE IN FOREWORD MOTION AFTER
TAU 36 DUE TO THE STRENGTHENING OF THE RIDGE SYSTEM TO THE EAST.
DYNAMIC MODEL GUIDANCE REMAINS IN FAIRLY GOOD AGREEMENT ON THE
GENERAL DIRECTION OF THE TRACK, WITH SOME INITIAL DISAGREEMENT OF
THE TIMING OF THE TURN SOUTH. THE CURRENT FORECAST LIES NEAR THE
MULTI-MODEL CONSENSUS TRACK, LEADING TO HIGH CONFIDENCE IN THE JTWC
FORECAST TRACK. MAXIMUM SIGNIFICANT WAVE IS 14 FEET. MAXIMUM
SIGNIFICANT WAVE HEIGHT AT 081800Z IS 14 FEET. NEXT WARNINGS AT
090900Z AND 092100Z.//
NNNN

=============================================================================

WTIO31 FMEE 081914
RSMC / CENTER OF LA REUNION TROPICAL CYCLONES
ANALYSIS AND FORECASTING CYCLONE (SOUTH-WEST INDIAN OCEAN) NEWSLETTER
0.A NEWSLETTER: 9/7/20162017
1.A TROPICAL DEPRESSION 7
2.A POSITION HAS 1800 UTC ON 03/08/2017:
WITHIN A RADIUS OF 20 MINUTES AROUND THE POINT 15.2 S / 70.0 E
(SIXTY TWO DEGREES SOUTH AND SEVENTY DEGREES ZERO‘S)
DISPLACEMENT: WEST-NORTH-WEST 4 KT
3.A DVORAK ANALYSIS: 2.5/2.5/D 0.5/12 H
4.A CENTRAL PRESSURE: 1001 HPA
5.A WIND MAX (MEDIUM/10 MIN): 30 KT
RADIUS OF MAXIMUM WINDS (RVM): VOID
6.A WIND BY QUADRANTS (KM) EXTENSION:
28 KT ONLY: 0 SE: 200 SO: 190 NO.: 0
7.A SIDE/DIAM FIRST CLOSED ISOBAR: 1006 HPA / 500 KM
8.A EXTENSION PORTRAIT OF THE CYCLONIC CIRCULATION: AVERAGE
1.B FORECASTS:
12 H: 03/09/2017 06 UTC: 15.5 S / 68.3 E WIND MAX = 035 KT, TROPICAL STORM
MODERATE
24: 09/03/2017 18 UTC: 15.8 S / 67.8 E WIND MAX = 035 KT, TROPICAL STORM
MODERATE
36H: 10 / 03 / 2017 06 UTC: 17.1 S / 67.7 E WIND MAX = 030 KT, TROPICAL DEPRESSION
48H: 10 / 03 / 201718 UTC: 19.5 S / 66.1 E WIND MAX = 030 KT, TROPICAL DEPRESSION
60H: 11 / 03 / 2017 06 UTC: 21.4 S / 63.1 E WIND MAX = 030 KT, TROPICAL DEPRESSION
72H: 11 / 03 / 201718 UTC: 22.6 S / 60.1 E WIND MAX = 035 KT, TROPICAL STORM
MODERATE
2.B TREND FURTHER:
96H: 12 / 03 / 201718 UTC: 25.4 S / 54.7 E WIND MAX = 040 KT, TROPICAL STORM
MODERATE
120H: 13 / 03 / 201718 UTC: 29.4 S / 54.4 E WIND MAX = 040 KT, POSTTROPICALE DEPRESSION
2.C COMMENTS:
T = 2.5, CI = 2.5
THE SATELLITE PRESENTATION IS GENERALLY IMPROVING BUT IT IS
A VERY RECENT. THE N18 1416Z WATCH AGAIN PASS A CENTER EXPOSES A
WEST OF THE DEEP CONVECTION, AND IT IS SINCE SHORTLY BEFORE 17Z ONLY ONE
BURST OF CONVECTION TAKES PLACE VERY NEAR THE CENTER. THE ASCAT PASS OF THE
EVENING CONFIRMS INTENSITY ANALYZED. IF THIS TREND IS CONSOLIDATING
IN THE NEXT FEW HOURS, THE SYSTEM COULD TAKE ADVANTAGE OF THE SMALL
WINDOW OF FAVOURABLE CONDITIONS TO INTENSIFY MORE
SIGNIFICANTLY
THE MINIMUM SE MOVED SLOWLY IN THE WEST BRANCH UNDER
THE INFLUENCE OF THE SUBTROPICAL LOW/MEDIUM RIDGE
TROPOSPHERE LOCATED ON THE SOUTH EAST OF THE BASIN. TOMORROW NIGHT, THE
MODELS AVAILABLE ARE IN GOOD AGREEMENT TO PREDICT A TURN TOWARDS THE
SOUTH BUT WITH TIMING DIFFERENCES, WHICH CAUSES A
UNCERTAINTY AVERAGE WELL REPORTED BY THE DISPERSION OF THE FORECAST
OVERVIEW OF THE CEP. THIS WEEKEND, THE SYSTEM IS EXPECTED TO RECOVER HIS
PATH ON THE SIDE OF THE SUBTROPICAL RIDGE NORTHWEST AND
SPEED UP BYPASSING THIS RIDGE.
THE SMALL SIZE OF THE SYSTEM MAKES IT PARTICULARLY SENSITIVE HAS ITS
ENVIRONMENT, INCLUDING ALTITUDE, WHICH MAKES FORECASTING
HARD INTENSITY. FROM THURSDAY NIGHT, THE ASCENT OF A THALWEG
ALTITUDE FROM THE MIDDLE LATITUDES (WAVE SURGE OF)
ROSSBY) CAUSES THE APPEARANCE OF A SECTOR MODERATE CONSTRAINT
NORTH. ACCORDING TO THE LATEST MODEL DATA, MOVING
RELATIVELY QUICK OF THE SYSTEM COULD ALLOW IT TO LIMIT ITS
WITHIN THIS ENVIRONMENT LESS FAVOURABLE, WITHOUT WEAKENING
INFLUENCE ON BAROCLINIC NET DYNAMICS OF ALTITUDE. IN THE PROCESS OF
WEEKEND WITH THE DISSIPATION OF THE THALWEG OF ALTITUDE AND MAINTAINING
A GREAT DIFFERENCE POLAR, THE SYSTEM COULD BE

REINTENSIFIER.

WTIO31 FMEE 081914
CMRS / CENTRE DES CYCLONES TROPICAUX DE LA REUNION
BULLETIN D’ANALYSE ET DE PREVISION CYCLONIQUE (SUD-OUEST OCEAN INDIEN)
0.A NUMERO DU BULLETIN : 9/7/20162017
1.A DEPRESSION TROPICALE 7
2.A POSITION A 1800 UTC LE 08/03/2017 :
DANS UN RAYON DE 20 MN AUTOUR DU POINT 15.2 S / 70.0 E
(QUINZE DEGRES DEUX SUD ET SOIXANTE-DIX DEGRES ZERO EST)
DEPLACEMENT: OUEST-NORD-OUEST 4 KT
3.A ANALYSE DE DVORAK : 2.5/2.5/D 0.5/12 H
4.A PRESSION AU CENTRE : 1001 HPA
5.A VENT MAX (MOYEN/10 MN): 30 KT
RAYON DES VENTS MAXIMAUX (RVM) :NEANT
6.A EXTENSION DES VENTS PAR QUADRANTS (KM) :
28 KT NE: 0 SE: 200 SO: 190 NO: 0
7.A COTE/DIAM PREMIERE ISOBARE FERMEE: 1006 HPA / 500 KM
8.A EXTENSION VERTICALE DE LA CIRCULATION CYCLONIQUE : MOYENNE
1.B PREVISIONS :
12H: 09/03/2017 06 UTC: 15.5 S / 68.3 E, VENT MAX=035 KT, TEMPETE TROPICALE
MODEREE
24H: 09/03/2017 18 UTC: 15.8 S / 67.8 E, VENT MAX=035 KT, TEMPETE TROPICALE
MODEREE
36H: 10/03/2017 06 UTC: 17.1 S / 67.7 E, VENT MAX=030 KT, DEPRESSION TROPICALE
48H: 10/03/2017 18 UTC: 19.5 S / 66.1 E, VENT MAX=030 KT, DEPRESSION TROPICALE
60H: 11/03/2017 06 UTC: 21.4 S / 63.1 E, VENT MAX=030 KT, DEPRESSION TROPICALE
72H: 11/03/2017 18 UTC: 22.6 S / 60.1 E, VENT MAX=035 KT, TEMPETE TROPICALE
MODEREE
2.B TENDANCE ULTERIEURE:
96H: 12/03/2017 18 UTC: 25.4 S / 54.7 E, VENT MAX=040 KT, TEMPETE TROPICALE
MODEREE
120H: 13/03/2017 18 UTC: 29.4 S / 54.4 E, VENT MAX=040 KT, DEPRESSION POSTTROPICALE
2.C COMMENTAIRES :
T=2.5 CI=2.5
LA PRESENTATION SATELLITE EST GLOBALEMENT EN AMELIORATION MAIS C’EST
TRES RECENT. LA PASS N18 DE 1416Z MONTRE ENCORE UN CENTRE EXPOSE A
L’OUEST DE LA CONVECTION PROFONDE, ET C’EST DEPUIS PEU AVANT 17Z QU’UN
BURST DE CONVECTION A LIEU TRES PRES DU CENTRE. LA PASS ASCAT DE LA
SOIREE CONFIRME L’INTENSITE ANALYSEE. SI CETTE TENDANCE SE CONSOLIDE
DANS LES PROCHAINES HEURES, LE SYSTEME POURRAIT PROFITER DE LA PETITE
FENETRE DE CONDITIONS FAVORABLES POUR S’INTENSIFIER PLUS
SIGNIFICATIVEMENT
LE MINIMUM SE DEPLACE LENTEMENT EN DIRECTION GENERALE DE L’OUEST SOUS
L’INFLUENCE DE LA DORSALE SUBTROPICALE DE BASSES/MOYENNES
TROPOSPHERE SITUEE SUR LA PARTIE SUD-EST DU BASSIN. DEMAIN SOIR, LES
MODELES DISPONIBLES SONT EN BON ACCORD POUR PREVOIR UN VIRAGE VERS LE
SUD MAIS AVEC DES DIFFERENCES DE TIMING, CE QUI PROVOQUE UNE
INCERTITUDE MOYENNE BIEN BALISEE PAR LA DISPERSION DE LA PREVISION
D’ENSEMBLE DU CEP. CE WEEK-END, LE SYSTEME DEVRAIT REDRESSER SA
TRAJECTOIRE SUR LA FACE NORD-OUEST DE LA DORSALE SUBTROPICALE ET
ACCELERER EN CONTOURNANT CETTE DORSALE.
LA PETITE TAILLE DU SYSTEME LE REND PARTICULIEREMENT SENSIBLE A SON
ENVIRONNEMENT, NOTAMMENT EN ALTITUDE, CE QUI REND LA PREVISION
D’INTENSITE DIFFICILE. A PARTIR DE JEUDI SOIR, LA REMONTEE D’UN THALWEG
D’ALTITUDE DEPUIS LES MOYENNES LATITUDES (DEFERLEMENT D’ONDE DE
ROSSBY) PROVOQUE L’APPARITION D’UNE CONTRAINTE MODEREE DE SECTEUR
NORD. SELON LES DERNIERES DONNEES MODELES, LE DEPLACEMENT
RELATIVEMENT RAPIDE DU SYSTEME POURRAIT LUI PERMETTRE DE LIMITER SON
AFFAIBLISSEMENT AU SEIN DE CET ENVIRONNEMENT MOINS FAVORABLE, SANS
INFLUENCE BAROCLINE NETTE DE LA DYNAMIQUE D’ALTITUDE. EN COURS DE
WEEK-END, AVEC LA DISSIPATION DU THALWEG D’ALTITUDE ET LE MAINTIEN
D’UNE EXCELLENTE DIVERGENCE POLAIRE, LE SYSTEME POURRAIT SE
REINTENSIFIER.

===========================================================================

MARITIME/SHIPPING

TROPICAL CYCLONE WARNING 24/1 March 08 2017 – 18:39:19 UTC
TROPICAL CYCLONE WARNING 24/2 March 08 2017 – 18:35:46 UTC
TROPICAL CYCLONE WARNING 24/3 March 08 2017 – 12:32:19 UTC
HIGH SEAS FORECAST March 08 2017 – 17:44:07 UTC
COASTAL WATERS FORECAST March 08 2017 – 12:44:02 UTC

Do not use any information on this site for life or death decisions. All information is intended as supplementary to official sources. Kindly refer to your country’s official weather agency/government website for local warnings, advisories and bulletins.

 

Australia: CYCLONE WARNING for coastal areas of western Top End, including Darwin, Tiwi Islands & Wadeye – – Published 04 Mar 2017 1820z (GMT/UTC)

Tropical Low 1

Forecast Track Map (NT)

Forecast Track Map (NT)

IDD20150

Australian Government Bureau of Meteorology
Northern Territory
Tropical Cyclone Warning Centre

Media: The Standard Emergency Warning Signal should NOT be used with this warning.

TOP PRIORITY FOR IMMEDIATE BROADCAST

TROPICAL CYCLONE WARNING

TROPICAL CYCLONE ADVICE NUMBER 9

Issued at 1:47 am ACST [12:17 am AWST] on Sunday 05 March 2017

Headline:

Cyclone Warning for coastal areas of western Top End, including Darwin, Tiwi Islands and Wadeye.

Areas Affected:

Warning Zone

Wadeye to Point Stuart and Croker Island to Cape Fourcroy.

Watch Zone

Kuri Bay to Wadeye

Cancelled Zone

None.

Details of Tropical Low at 12:30 am ACST [11:00 pm AWST]:

Intensity: Tropical Low, sustained winds near the centre of 55 kilometres per hour with wind gusts to 85 kilometres per hour.

Location: within 85 kilometres of 10.6 degrees South 131.1 degrees East, estimated to be 105 kilometres north northeast of Milikapiti and 205 kilometres north of Darwin.

Movement: southwest at 13 kilometres per hour.

A tropical low in the Timor Sea is slowly intensifying and may reach tropical cyclone intensity near the Tiwi Islands in the next 6 to 12 hours. The system is expected to continue tracking to the southwest and may pass close to Darwin during Sunday morning or early Sunday afternoon. The cyclone may intensify further during Sunday night or Monday before crossing the north Kimberley coast later on Monday as a Category 2 system.

Hazards:

GALES with gusts to 110 kilometres per hour may develop between Croker Island and Cape Fourcroy in the next 6 to 12 hours, and extend south between Point Stuart and Wadeye (Port Keats), including Darwin, from Sunday morning or early Sunday afternoon

GALES may extend further south between Wadeye (Port Keats) and the NT/WA border, later on Sunday and Monday. GALES may extend west between NT/WA border to Kuri Bay during Monday.

A STORM TIDE between Croker Island and Cape Fourcroy may occur as the cyclone centre crosses the coast on Sunday morning. Tides may rise significantly above the normal high tide, with DAMAGING WAVES and DANGEROUS FLOODING.

Tides will be HIGHER THAN NORMAL between Point Stuart in the NT and Kuri Bay in WA on Sunday and Monday. Large waves may produce MINOR FLOODING of low-lying coastal areas.

HEAVY RAIN and SQUALLS are likely to continue over the Tiwi and Croker Islands and Cobourg Peninsula this morning, extending to the western Top End later Sunday and to the Kimberley region on Sunday night or Monday.

DAMAGING WIND GUSTS are possible in squally showers and storms across the western Top End during the next day or two even if the low does not reach cyclone intensity.

Recommended Action:

NTES advises residents from Cape Fourcroy to Croker Island and Point Stuart to Wadeye, including Darwin

– Your emergency kit should now be complete and ready;

– Finalise home shelter preparations, or know now where you will shelter;

– Do not move to shelter until advised by local authorities

Communities under Watch:

– Finalise your emergency kit preparations;

– Clear your premises of potential wind borne missiles;

– Commence home shelter preparations, or decide NOW where you will shelter;

– If your present accommodation is not to code, or you re unsure, you should arrange to shelter with friends, family or in a public shelter or strong building;

– Do not move to shelter until advised by local authorities.

DFES advises residents in the Watch zone between WA/NT border to Kuri Bay in WA:

-You should prepare your home inside and out

-Keep up to date with the development of the cyclone

Further advice on cyclone emergencies is available at http://www.securent.nt.gov.au

Please ensure that friends, family and neighbours have heard and understood this message, particularly new arrivals to the area.

Next Advice:

The next advice will be issued by 5:00 am ACST Sunday 05 March [3:30 am AWST Sunday 05 March].

This advice is available on telephone NT-1300 659 211 and WA-1300 659 210

Tropical Cyclone Technical Bulletin http://www.bom.gov.au/cgi-bin/wrap_fwo.pl?IDD20020.txt

Guides and checklists for cyclone safety and preparedness.
Check your local emergency agencies for more information.

More information here: http://www.bom.gov.au/cyclone/index.shtml

Australia National Weather Warnings Summary

===========================================================

MARITIME/SHIPPING

IDD20130
Australian Government Bureau of Meteorology
Northern Territory
Darwin Regional Forecasting Centre

40:2:1:24:10S131E999:11:00
SECURITE

HIGH SEAS WEATHER WARNING

HIGH SEAS WEATHER WARNING FOR METAREA 10/11
Issued by the AUSTRALIAN BUREAU OF METEOROLOGY, DARWIN
Issued at 1328UTC 4 MARCH 2017

PLEASE BE AWARE
Wind gusts can be a further 40 percent stronger than the averages
given here, and maximum waves may be up to twice the height.

GALE WARNING FOR NORTHERN AREA

SITUATION
At 1200 UTC a Tropical Low was centred within 45 nautical miles of
latitude ten decimal four south (10.4S)
longitude one hundred and thirty one decimal four east (131.4E)
Recent movement : southwest at 6 knots
Maximum winds : 30 knots
Central pressure: 998 hPa
The low is expected to develop into a tropical cyclone in the next 12 to 18
hours.

AREA AFFECTED

FORECAST
Maximum winds to 30 knots near the centre increasing to 45 knots by 1200 UTC 05
March.

From 0000 UTC 5 March winds above 34 knots within 50 nautical miles of centre,
extending to 60 nautical miles in SW quadrant with rough to very rough seas and
moderate swell.

Forecast positions
At 0000 UTC 05 March: Within 55 nautical miles of 11.3 south 130.4 east
Central pressure 996 hPa.
Winds to 35 knots near centre.
At 1200 UTC 05 March: Within 80 nautical miles of 12.2 south 129.3 east
Central pressure 990 hPa.
Winds to 45 knots near centre.

REMARKS
All ships in the area please send weather reports every three hours.
Regular weather observing ships use normal channels.
Other ships please use either email to nttcwc@bom.gov.au or fax to +6189203829
or satellite using SAC1241 through Land Earth Station Burum 312 [or 212 as
appropriate] via Perth.

Next warning will be issued by 1930 UTC 04 March 2017.

DARWIN Tropical Cyclone Warning Centre

Do not use any information on this site for life or death decisions. All information is intended as supplementary to official sources. Kindly refer to your country’s official weather agency/government website for local warnings, advisories and bulletins.

UK: Five fishermen and two RNLI lifeboat crew were saved from the sea after a dramatic rescue off Shetland – Published 04 Mar 2017 1240z (GMT/UTC)

Five fishermen and two RNLI lifeboat crew were saved from the sea after a dramatic rescue when their trawler sank in bad weather.

(Image: RNLI)

(Image: RNLI)

The seven had to jump into the water just before the ship sank off Shetland as the sea was too rough to bring a lifeboat alongside. The alarm was raised at about 6.50am yesterday when the Lerwick-registered Ocean Way began taking on water. Lerwick RNLI lifeboat and the Coastguard search and rescue helicopter from Sumburgh both rushed to the scene. Two RNLI crew, one of whom often crews on Skerries-based Ocean Way, were transferred to the trawler with a salvage pump. But the skipper decided the trawler could not be saved. The five crew and two RNLI volunteers jumped into the water minutes before the trawler sank at 8.20am. They were picked up by the lifeboat, crewed by eight volunteers, and taken back to Lerwick. A Norwegian fish carrier, the Gerda Saele, had put a pump on board while the helicopter began winching a third pump on board, but Ocean Way’s skipper decided to abandon ship. The trawler crew were all wearing life jackets and had an Emergency Position Indicating Radio Beacon on board, pinpointing their position. Rescuers praised them for having the correct equipment. Lifeboat coxswain Alan Tarby said: “While the third pump was being winched on board the skipper decided to abandon ship and within minutes of him making that decision they got off and it sank, so it was a good call. “The rescue was made much easier because the Ocean Way’s crew were all wearing the correct safety equipment and had undergone safety training. “It was a good outcome even although the vessel was lost, all the crew were unharmed. The lifeboat crew performed very well, especially the two men who were in the water with the fishermen.” The fishermen were checked over by medics in Lerwick but did not need treatment. Mark Rodaway, commander for the UK Coastguard, said: “This was a difficult rescue in awful weather. In the conditions, the lifeboat had a difficult time trying to safely get alongside. “But I’m delighted to say that all five fishermen are safe and well and the fact they were all wearing life jackets ensured that they had the best chance of survival.”

RSOE March 04 2017 11:19 AM (UTC).

More here (inc video): http://www.bbc.co.uk/news/uk-scotland-north-east-orkney-shetland-39151952

Madagascar:Ex Tropical Cyclone Enawo 09S 081800Z Position nr 17.9S 46.6E, moving SW 08 Kt (RSMC LaReunion) – Updated 08 Mar 2017 1956z (GMT/UTC)

==

Ex Tropical Cyclone Enawo 09S

WTIO31 FMEE 081910 CCA
FIX *.
RSMC / CENTER OF LA REUNION TROPICAL CYCLONES
ANALYSIS AND FORECASTING CYCLONE (SOUTH-WEST INDIAN OCEAN) NEWSLETTER
0.A NEWSLETTER: 6/26/20162017
1.A DEPRESSION ON EARTH 6 (EX-ENAWO)
2.A POSITION HAS 1800 UTC ON 03/08/2017:
WITHIN A RADIUS OF 30 MINUTES AROUND THE POINT 17.9 S / 46.6 E
(SEVENTEEN NINE DEGREES SOUTH AND FORTYSIX DEGREES SIX IS)
DISPLACEMENT: SOUTHWEST 8 KT
3.A DVORAK ANALYSIS: NOTHINGNESS
4.A CENTRAL PRESSURE: NILE
5.A WIND MAX (MEDIUM/10 MN): 35 KT
RADIUS OF MAXIMUM WINDS (RVM): VOID
6.A WIND BY QUADRANTS (KM) EXTENSION:
28 KT DON’T: 430 SE: 440 SO: NO. 0: 0
34 KT IS: 0 SE: 350 SO: NO. 0: 0
7.A SIDE/DIAM FIRST CLOSED ISOBAR: 1002 HPA / 1000 KM
8.A EXTENSION PORTRAIT OF THE CYCLONIC CIRCULATION: AVERAGE
1.B FORECASTS:
12 H: 03/09/2017 06 UTC: 21.4 S / 46.3 E WIND MAX = 035 KT, DEPRESSION ON EARTH
24: 09/03/2017 18 UTC: 25.0 S / 46.5 E WIND MAX = 040 KT, DEPRESSION ON EARTH
36H: 10 / 03 / 2017 06 UTC: 27.3 S / 47.7 E WIND MAX = 045 KT, POSTTROPICALE DEPRESSION
48H: 10 / 03 / 201718 UTC: 30.9 S / 49.2 E WIND MAX = 045 KT, POSTTROPICALE DEPRESSION
60H: 11 / 03 / 2017 06 UTC: 34.5 S / 47.8 E WIND MAX = 040 KT, DEPRESSION
EXTRATROPICAL
72H: 11 / 03 / 201718 UTC: 37.4 S / 44.2 E WIND MAX = 040 KT, DEPRESSION
EXTRATROPICAL
2.B TREND FURTHER:
96H: 12 / 03 / 201718 UTC: 46.0 S / 46.6 E WIND MAX = 035 KT, DISSIPATING
2.C COMMENTS:
FIX ON THE CENTRAL PRESSURE WHICH IS NOT FILLED (SYSTEM ON)
EARTH)
EX-ENAWO CONTINUES TO SINK INTO THE MALAGASY LAND IN
DIRECTORATE GENERAL OF THE SOUTHWEST WITH A TENDENCY TO THE DOWNTURN
ON THE LAST 6 HOURS. HE SHOULD DIVE MORE FRANKLY IN
HEADING SOUTH IN THE NEXT FEW HOURS IN ACCELERANT.
CONFIGURING SATELLITE REMAINS THE SAME, WITH THE PRESENCE OF
ACTIVE CONVERGENCE LINES (ESPECIALLY ON THE NORTH OF THE CHANNEL AND THE)
COAST NORTHWEST OF MADAGASCAR AT THE ELECTRICAL LEVEL) SE FAR FORMING
CENTER IN PART ON SEA IN THE NORTH-WEST QUADRANTS AND SOUTHEAST
THE TRAFFIC.
IN THE COMING DAYS, THE DISPLACEMENT CONTINUES ON A
TRAJECTORY THAT SHOULD QUICKLY BECOME MERIDIAN WITH THE WEAKENING
THE RIDGE PRESENT ON AVERAGE TROPOSPHERE ON MADAGASCAR. THE
ORDER OF THE WIND BLOW STRONG WINDS SHOULD REMAIN PRESENT THROUGHOUT
THE COAST IS MALAGASY DURING THIS DESCENT, IS EXTENDING TO THE SOUTHEAST
MALAGASY DURING THE DAY TOMORROW NIGHT OR NEXT. AT THE
RE-RELEASE AT SEA (THURSDAY NIGHT (A FRIDAY), THE BEGINNING OF A TRANSITION
EXTRATROPICAL SHOULD START QUICKLY ENOUGH IN INTERACTION
WITH A WATER-COURSE OF ARRIVING BY THE SOUTHWEST INTO A ALTITUDE
VERY CISAILLEE ENVIRONMENT WITH POTENTIAL OCEANIC
DECREASING QUICKLY.
WTIO31 FMEE 081910 CCA
***************CORRECTIF**************
CMRS / CENTRE DES CYCLONES TROPICAUX DE LA REUNION
BULLETIN D’ANALYSE ET DE PREVISION CYCLONIQUE (SUD-OUEST OCEAN INDIEN)
0.A NUMERO DU BULLETIN : 26/6/20162017
1.A DEPRESSION SUR TERRE 6 (EX-ENAWO)
2.A POSITION A 1800 UTC LE 08/03/2017 :
DANS UN RAYON DE 30 MN AUTOUR DU POINT 17.9 S / 46.6 E
(DIX-SEPT DEGRES NEUF SUD ET QUARANTE SIX DEGRES SIX EST)
DEPLACEMENT: SUD-OUEST 8 KT
3.A ANALYSE DE DVORAK : NEANT
4.A PRESSION AU CENTRE : NIL
5.A VENT MAX (MOYEN/10 MN): 35 KT
RAYON DES VENTS MAXIMAUX (RVM) :NEANT
6.A EXTENSION DES VENTS PAR QUADRANTS (KM) :
28 KT NE: 430 SE: 440 SO: 0 NO: 0
34 KT NE: 0 SE: 350 SO: 0 NO: 0
7.A COTE/DIAM PREMIERE ISOBARE FERMEE: 1002 HPA / 1000 KM
8.A EXTENSION VERTICALE DE LA CIRCULATION CYCLONIQUE : MOYENNE
1.B PREVISIONS :
12H: 09/03/2017 06 UTC: 21.4 S / 46.3 E, VENT MAX=035 KT, DEPRESSION SUR TERRE
24H: 09/03/2017 18 UTC: 25.0 S / 46.5 E, VENT MAX=040 KT, DEPRESSION SUR TERRE
36H: 10/03/2017 06 UTC: 27.3 S / 47.7 E, VENT MAX=045 KT, DEPRESSION POSTTROPICALE
48H: 10/03/2017 18 UTC: 30.9 S / 49.2 E, VENT MAX=045 KT, DEPRESSION POSTTROPICALE
60H: 11/03/2017 06 UTC: 34.5 S / 47.8 E, VENT MAX=040 KT, DEPRESSION
EXTRATROPICALE
72H: 11/03/2017 18 UTC: 37.4 S / 44.2 E, VENT MAX=040 KT, DEPRESSION
EXTRATROPICALE
2.B TENDANCE ULTERIEURE:
96H: 12/03/2017 18 UTC: 46.0 S / 46.6 E, VENT MAX=035 KT, SE DISSIPANT
2.C COMMENTAIRES :
CORRECTIF SUR LA PRESSION CENTRALE QUI EST NON RENSEIGNEE (SYSTEME SUR
TERRE)
EX-ENAWO CONTINUE DE S’ENFONCER DANS LES TERRES MALGACHES EN
DIRECTION GENERALE DU SUD-OUEST AVEC UNE TENDANCE AU RALENTISSEMENT
SUR LES DERNIERES 6 HEURES. IL DEVRAIT PLONGER PLUS FRANCHEMENT EN
DIRECTION DU SUD DANS LES PROCHAINES HEURES EN ACCELERANT.
LA CONFIGURATION SATELLITAIRE RESTE IDENTIQUE, AVEC LA PRESENCE DE
LIGNES DE CONVERGENCE ACTIVES (SURTOUT SUR LE NORD DU CANAL ET LA
COTE NORD-OUEST DE MADAGASCAR AU NIVEAU ELECTRIQUE) SE FORMANT LOIN
DU CENTRE EN PARTIE SUR MER DANS LES QUADRANTS NORD-OUEST ET SUD-EST
DE LA CIRCULATION.
DANS LES PROCHAINS JOURS, LE DEPLACEMENT SE POURSUIT SUR UNE
TRAJECTOIRE QUI DEVRAIT VITE DEVENIR MERIDIENNE AVEC L’AFFAIBLISSEMENT
DE LA DORSALE PRESENTE EN MOYENNE TROPOSPHERE SUR MADAGASCAR. DES
VENTS FORTS DE L’ORDRE DU COUP DE VENT DEVRAIT RESTER PRESENT LE LONG
DES COTES EST MALGACHES LORS DE CETTE DESCENTE, S’ETENDANT AU SUD-EST
MALGACHE EN COURS DE JOURNEE DE DEMAIN OU NUIT SUIVANTE. A LA
RESSORTIE EN MER (NUIT DE JEUDI A VENDREDI), LE DEBUT D’UNE TRANSITION
EXTRATROPICALE DEVRAIT S’AMORCER ASSEZ RAPIDEMENT EN INTERACTION
AVEC UN TALWEG D’ALTITUDE ARRIVANT PAR LE SUD-OUEST DANS UN
ENVIRONNEMENT TRES CISAILLEE ET AVEC UN POTENTIEL OCEANIQUE
DIMINUANT RAPIDEMENT.
SWI$06_20162017 REUNION 08

==========================================================

TROPICAL STORM RISK (TSR)

Not available at time of posting

=========================================================

Joint Typhoon Warning Center (JTWC)

Tropical Cyclone 09S (Enawo) Warning #10 Final Warning
Issued at 07/2100Z

sh0917 JTWC 08

09S_071800sair

WTXS31 PGTW 072100
MSGID/GENADMIN/JOINT TYPHOON WRNCEN PEARL HARBOR HI//
SUBJ/TROPICAL CYCLONE 09S (ENAWO) WARNING NR 010//
RMKS/
1. TROPICAL CYCLONE 09S (ENAWO) WARNING NR 010
01 ACTIVE TROPICAL CYCLONE IN SOUTHIO
MAX SUSTAINED WINDS BASED ON ONE-MINUTE AVERAGE
WIND RADII VALID OVER OPEN WATER ONLY

WARNING POSITION:
071800Z — NEAR 15.2S 49.5E
MOVEMENT PAST SIX HOURS – 225 DEGREES AT 08 KTS
POSITION ACCURATE TO WITHIN 030 NM
POSITION BASED ON CENTER LOCATED BY SATELLITE
PRESENT WIND DISTRIBUTION:
MAX SUSTAINED WINDS – 090 KT, GUSTS 110 KT
WIND RADII VALID OVER OPEN WATER ONLY
RADIUS OF 064 KT WINDS – 045 NM NORTHEAST QUADRANT
050 NM SOUTHEAST QUADRANT
045 NM SOUTHWEST QUADRANT
040 NM NORTHWEST QUADRANT
RADIUS OF 050 KT WINDS – 085 NM NORTHEAST QUADRANT
100 NM SOUTHEAST QUADRANT
085 NM SOUTHWEST QUADRANT
065 NM NORTHWEST QUADRANT
RADIUS OF 034 KT WINDS – 185 NM NORTHEAST QUADRANT
185 NM SOUTHEAST QUADRANT
165 NM SOUTHWEST QUADRANT
135 NM NORTHWEST QUADRANT
REPEAT POSIT: 15.2S 49.5E

FORECASTS:
12 HRS, VALID AT:
080600Z — 16.5S 48.4E
MAX SUSTAINED WINDS – 060 KT, GUSTS 075 KT
WIND RADII VALID OVER OPEN WATER ONLY
DISSIPATING AS A SIGNIFICANT TROPICAL CYCLONE OVER LAND
RADIUS OF 050 KT WINDS – 080 NM NORTHEAST QUADRANT
090 NM SOUTHEAST QUADRANT
095 NM SOUTHWEST QUADRANT
055 NM NORTHWEST QUADRANT
RADIUS OF 034 KT WINDS – 185 NM NORTHEAST QUADRANT
205 NM SOUTHEAST QUADRANT
130 NM SOUTHWEST QUADRANT
100 NM NORTHWEST QUADRANT
VECTOR TO 24 HR POSIT: 210 DEG/ 09 KTS

24 HRS, VALID AT:
081800Z — 18.1S 47.5E
MAX SUSTAINED WINDS – 040 KT, GUSTS 050 KT
WIND RADII VALID OVER OPEN WATER ONLY
DISSIPATING AS A SIGNIFICANT TROPICAL CYCLONE OVER LAND
RADIUS OF 034 KT WINDS – 175 NM NORTHEAST QUADRANT
210 NM SOUTHEAST QUADRANT
070 NM SOUTHWEST QUADRANT
085 NM NORTHWEST QUADRANT
VECTOR TO 36 HR POSIT: 190 DEG/ 15 KTS

36 HRS, VALID AT:
090600Z — 21.1S 46.8E
MAX SUSTAINED WINDS – 025 KT, GUSTS 035 KT
WIND RADII VALID OVER OPEN WATER ONLY
DISSIPATED AS A SIGNIFICANT TROPICAL CYCLONE OVER LAND

REMARKS:
072100Z POSITION NEAR 15.5S 49.2E.
TROPICAL CYCLONE (TC) 09S (ENAWO), LOCATED APPROXIMATELY 459 NM
NORTHWEST OF ST DENIS, HAS TRACKED SOUTHWESTWARD AT 08 KNOTS OVER
THE PAST SIX HOURS. ANIMATED ENHANCED INFRARED SATELLITE IMAGERY
DEPICTS TIGHTLY CURVED BANDING CONTINUING TO SPIRAL INTO A DEFINED
LOW LEVEL CIRCULATION CENTER AS THE CYCLONE MOVES FURTHER INLAND
OVER MADAGASCAR. THE CONVECTIVE STRUCTURE HAS CONTINUED TO RAPIDLY
ERODE DUE TO THE LAND INTERACTION WITH THE RUGGED TERRAIN. THE
SYSTEM WILL TRACK SOUTHWARD ALONG THE WESTERN PERIPHERY OF THE
STEERING SUB-TROPICAL RIDGE TO THE EAST. CONCURRENTLY, TC 09S WILL
RAPIDLY DISSIPATE OVER THE NEXT 36 HOURS DUE TO THE IMPACTS OF THE
TERRAIN. THE REMNANT VORTEX SIGNATURE WILL BE ABSORBED INTO A MID-
LATITUDE CYCLONE PASSING SOUTH OF MADAGASCAR. DYNAMIC MODEL GUIDANCE
IS IN VERY TIGHT AGREEMENT LENDING HIGH CONFIDENCE TO THE JTWC
FORECAST. THIS IS THE FINAL WARNING ON THIS SYSTEM BY THE JOINT
TYPHOON WRNCEN PEARL HARBOR HI. THE SYSTEM WILL BE CLOSELY MONITORED
FOR SIGNS OF REGENERATION.//
NNNN

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MARITIME/SHIPPING

WTIO24 FMEE 081837 CCA
***************CORRECTIVE**************
SECURITE
GALE WARNING FOR METAREA VII
ISSUED BY METEO-FRANCE/TROPICAL CYCLONE CENTER/LA REUNION 08/03/2017
AT
1800 UTC.
WARNING NUMBER: 026/6 (SOUTH-WEST INDIAN OCEAN)

10 MINUTES AVERAGE WIND SPEED IN KNOTS (KT)
(WIND GUSTS AT SEA MAY BE ABOUT 40% STRONGER THAN THE AVERAGED WIND)
MINIMUM SEA LEVEL PRESSURE IN HECTOPASCAL (HPA)
(INDICATIVE FIGURE).

GALE WARNING
BEGINNING OF VALIDITY: WEDNESDAY 08/03/2017 AT 1800 UTC.

PHENOMENON: OVERLAND DEPRESSION 6 (EX-ENAWO) NIL
POSITION: WITHIN 30 NM RADIUS OF POINT 17.9 S / 46.6 E
(SEVENTEEN DECIMAL NINE DEGREES SOUTH AND
FORTY SIX DECIMAL SIX DEGREES EAST) AT 1800 UTC
MOVEMENT: SOUTH-WEST 8 KT

THREAT AREAS:
SQUALLY WEATHER WITHIN A 240 NM RADIUS FROM THE CENTER IN THE
NORTHERN SEMI-CERCLE, AND UP TO 400 NM IN THE SOUTHERN SEMI-CERCLE.
GALE FORCE WINDS 35 KT AND VERY ROUGH TO HIGH SEAS EXTENDING UP TO 60
NM OFF THE EASTERN COAST OF MADAGASCAR BETWEEN 18S AND 20S.
NEAR GALE FORCE WINDS 30 KT AND ROUGH TO VERY ROUGH SEAS EXTENDING
UP TO 110 NM OFF THE EASTERN COAST OF MADAGASCAR BETWEEN 17S AND 21S.
STRONG GUSTS UNDER SQUALLS.
FORECAST POSITION AND INTENSITY:
12H, VALID 2017/03/09 AT 06 UTC:
21.4 S / 46.3 E, MAX WIND = 35 KT, OVERLAND DEPRESSION
24H, VALID 2017/03/09 AT 18 UTC:
25.0 S / 46.5 E, MAX WIND = 40 KT, OVERLAND DEPRESSION

OTHER INFORMATIONS:
CORRECTIVE: CENTRAL PRESSURE UNKNOWN (OVER-LAND DEPRESSION)
GALE FORCE WINDS ARE SPREADING SOUTHWARDS ALONG THE EASTERN COASTS OF
MADAGASCAR.=

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