Norfolk Island/ NZ /New Caledonia: Tropical Cyclone COOK 16P 111500Z position nr 27.0S 168.8E, moving SE 13 kt (JTWC) – Updated 11 Apr 2017 1453z (GMT/UTC)

Tropical Cyclone COOK (16P)

MAXIMUM SIGNIFICANT WAVE HEIGHT AT 111200Z IS 15 FEET (JTWC)

(Image: Apr 11, 2017, 12:00:00 AM GMT @wunderground)

Joint Typhoon Warning Center (JTWC)

Tropical Cyclone 16P (Cook) Warning #08 Final Warning
Issued at 11/1500Z

WTPS31 PGTW 111500
MSGID/GENADMIN/JOINT TYPHOON WRNCEN PEARL HARBOR HI//
SUBJ/TROPICAL CYCLONE 16P (COOK) WARNING NR 008//
RMKS/
1. TROPICAL CYCLONE 16P (COOK) WARNING NR 008
01 ACTIVE TROPICAL CYCLONE IN SOUTHPAC
MAX SUSTAINED WINDS BASED ON ONE-MINUTE AVERAGE
WIND RADII VALID OVER OPEN WATER ONLY

WARNING POSITION:
111200Z — NEAR 26.6S 168.2E
MOVEMENT PAST SIX HOURS – 125 DEGREES AT 13 KTS
POSITION ACCURATE TO WITHIN 030 NM
POSITION BASED ON CENTER LOCATED BY SATELLITE
PRESENT WIND DISTRIBUTION:
MAX SUSTAINED WINDS – 045 KT, GUSTS 055 KT
WIND RADII VALID OVER OPEN WATER ONLY
BECOMING EXTRATROPICAL
RADIUS OF 034 KT WINDS – 135 NM NORTHEAST QUADRANT
135 NM SOUTHEAST QUADRANT
115 NM SOUTHWEST QUADRANT
070 NM NORTHWEST QUADRANT
REPEAT POSIT: 26.6S 168.2E

FORECASTS:
12 HRS, VALID AT:
120000Z — 28.3S 170.7E
MAX SUSTAINED WINDS – 035 KT, GUSTS 045 KT
WIND RADII VALID OVER OPEN WATER ONLY
EXTRATROPICAL
RADIUS OF 034 KT WINDS – 135 NM NORTHEAST QUADRANT
140 NM SOUTHEAST QUADRANT
120 NM SOUTHWEST QUADRANT
080 NM NORTHWEST QUADRANT

REMARKS:
111500Z POSITION NEAR 27.0S 168.8E.
TROPICAL CYCLONE 16P (COOK), LOCATED APPROXIMATELY 490 NM SOUTH
OF NOUMEA, NEW CALEDONIA, HAS TRACKED SOUTHEASTWARD AT 13 KNOTS OVER
THE PAST SIX HOURS. ANIMATED ENHANCED INFRARED SATELLITE IMAGERY
DEPICTS A RAPIDLY DECAYING SYSTEM WITH SIGNIFICANT VERTICAL WIND
SHEAR AS IT INTERACTS WITH THE MIDLATITUDE WESTERLIES. THE INITIAL
POSITION IS BASED ON A 111141Z 89 GHZ AMSU IMAGE SHOWING AN
INCREASINGLY ASYMMETRIC LOW LEVEL CIRCULATION CENTER. THE INITIAL
INTENSITY OF 45 KNOTS IS BASED ON CURRENT INTENSITY SUBJECTIVE
DVORAK ESTIMATES OF T3.0 (45 KNOTS). TC COOK IS CURRENTLY TRACKING
SOUTHEASTWARD INTO THE MIDLATITUDE BAROCLINIC REGION, AND IS
EXPECTED TO TRANSITION INTO A FULLY EXTRATROPICAL SYSTEM WITHIN THE
NEXT 12 HOURS. 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. MAXIMUM SIGNIFICANT WAVE HEIGHT AT 111200Z
IS 15 FEET.//
NNNN

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

TROPICAL DISTURBANCE ADVISORY NUMBER A15 ISSUED FROM RSMC NADI
Apr 110152 UTC.

TROPICAL CYCLONE COOK CENTRE [980HPA] CATEGORY 2 WAS LOCATED NEAR
24.6S 166.0E AT 110000 UTC. POSITION FAIR BASED ON HR HIMAWARI-8 VIS
IMAGERY. CYCLONE MOVING SOUTH AT ABOUT 10 KNOTS. MAXIMUM 10-MINUTE
AVERAGE WINDS NEAR THE CENTRE ESTIMATED AT ABOUT 55 KNOTS.
EXPECT WINDS OVER 47 KNOTS WITHIN 40 NAUTICAL MILES IN SECTOR FROM
NORTH THROUGH EAST TO WEST.
AND WITHIN 25 NAUTICAL MILES IN NW QUADRANT.
EXPECT WINDS ABOVE 33 KNOTS WITHIN 120 NAUTICAL MILES IN NE QUADRANT
AND WITHIN 120 NAUTICAL MILES IN SE QUADRANT
AND WITHIN 100 NAUTICAL MILES IN SW QUADRANT
AND WITHIN 60 NAUTICAL MILES IN NW QUADRANT.

LLCC PARTIALLY EXPOSED. DEEP CONVECTION HAS DECREASED SIGNIFICANTLY
IN PAST 12 HOURS. ORGANISATION HAS ALSO DECREASED. CYCLONE LIES IN A
MODERATE TO HIGH SHEARED ENVIRONMENT. OUTFLOW GOOD TO THE SOUTH WITH
MODERATE UPPER DIVERGENCE. SST AROUND 26-27 DEGREES CELCIUS. COOK IS
BEING STEERED TO THE SOUTHEAST BY THE DEEP LAYER MEAN NORTHWESTERLY
FLOW. DVORAK ANALYSIS BASED ON SHEAR PATTERN WITH LLCC ABOUT 1/3
DEGRESS INTO STRONG TEMPERATURE GRADIENT YIELDS, DT=3.5 MET 3.5 AND
PT=3.5. FT BASED ON DT. THUS, YIELDING T3.5/4.0/W1.5/24HRS. CI HELD
HIGH DUE TO CI RULES FOR WEAKENING.

GLOBAL MODELS AGREE ON A SOUTHEAST TRACK WITH FURTHER WEAKENING.

FORECASTS :
AT 12 HRS VALID AT 111200 UTC 26.1S 167.9E MOV SE AT 12 KT WITH 50 KT
CLOSE TO CENTRE
AT 24 HRS VALID AT 120000 UTC 27.4S 170.1E MOV SE AT 12 KT WITH 45 KT
CLOSE TO CENTRE

OUTLOOK :
AT 36 HRS VALID AT 121200 UTC 28.9S 172.5E MOV SE AT 12 KT WITH 35 KT
CLOSE TO CENTRE

THIS WILL BE THE LAST TROPICAL DISTURBANCE ADVISORY ON COOK.

 

TROPICAL CYCLONE POTENTIAL BULLETIN ISSUED BY METEOROLOGICAL SERVICE OF NEW ZEALAND AT 0346 UTC 11-Apr-2017

CURRENT STATUS OF CYCLONE ACTIVITY

Tropical Cyclone Cook (980hPa, Category 2) was located near 24.6S
166E at 11/0000UTC today or about 140nm south of Noumea, New
Caledonia, moving south at 10 knots. Maximum winds near the centre
were estimated to be 55 knots with gales extending up to 120nm from
the centre.

FORECAST TO 1200 UTC 12-Apr-2017

Tropical Cyclone Cook (980hPa, Category 2) was located near 24.6S
166E, or about bout 140nm south of Noumea, New Caledonia, at
11/0000UTC today and is currently moving south out of the Tropics.

Tropical depression, TD19F, (994hPa) was analysed near 26.0S 169.3W,
or about 430nm southeast of Nukualofa, Tonga at 11/0000UTC today. The
system has low potential to develop into a TC, and is expected to
drift slowly northwards towards Niue over the next 24 hours.

OUTLOOK TO 1200 UTC 15-Apr-2017

TD19F is expected to track east-southeast from Thursday and lie near
southern Cook Islands, then weaken from Friday onwards.

The next bulletin will be issued by 0500 UTC Wed 12-Apr-2017

(C) Copyright Meteorological Service of New Zealand Ltd 2017

 

Tropical Storm Risk (TSR)

SW Pacific: TSR Storm Alert issued at 9 Apr, 2017 12:00 GMT

SW Pacific: Storm Alert issued at 11 Apr, 2017 12:00 GMT (Final Warning)

Tropical Storm COOK is currently located near 26.6 S 168.2 E with maximum 1-min sustained winds of 45kts (52 mph). COOK is forecast to affect land to the following likelihood(s) at the given lead time(s):
Yellow Alert Country(s) or Province(s)
    Norfolk Island
        probability for TS is 70% within 12 hours
Yellow Alert City(s) and Town(s)
    Kingston (29.1 S, 168.0 E)
        probability for TS is 65% within 12 hours

Note that
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.

 

MARITIME/SHIPPING

METAREA14 / TROPICAL_CYCLONE_WARNING_SOUTH_25S / 1311

WTNZ41 NZKL 111311
GALE WARNING 279
THIS AFFECTS OCEAN AREA: SUBTROPIC
TROPICAL CYCLONE COOK 990HPA] CENTRE WAS LOCATED NEAR 26.6 SOUTH
168.8 EAST AT 111200 UTC.
POSITION FAIR.
REPEAT POSITION 26.6S 168.8E AT 111200 UTC.
CYCLONE IS MOVING EASTSOUTHEAST 15 KNOTS.
EXPECT SUSTAINED WINDS OF 40 KNOTS CLOSE TO THE CENTRE WITH VERY
ROUGH SEA AND MODERATE TO HEAVY SWELL.
EXPECT WINDS OVER 33 KNOTS WITHIN 120 NAUTICAL MILES OF CENTRE IN
THE SECTOR FROM NORTH THROUGH EAST TO WEST AND WITHIN 80 NAUTICAL
MILES OF CENTRE IN THE NORTHWEST QUADRANT.
THIS WARNING CANCELS AND REPLACES WARNING 268.=

South West Pacific Marine

UPDATED

MARINE WEATHER BULLETIN FOR ISLANDS AREA EQUATOR TO 25S BETWEEN 160E AND 120W. ISSUED BY FIJI METEOROLOGICAL SERVICE EQUATOR to 25S between 160E and 120W issued by Fiji Meteorological Service Apr 110800 UTC. PART 1 : WARNINGSTORM WARNING 034 ISSUED FROM RSMC NADI Apr 110731 UTC. REFER TO STORM WARNING NUMBER 268 ISSUED BY RSMC WELLINGTON. THIS WARNING CANCELS AND REPLACES WARNING 032. ********************************************************************* ************** GALE WARNING 035 ISSUED FROM RSMC NADI Apr 110847 UTC. IN THE AREA BOUNDED BY 23S 174W 23S 165W 25S 175W 25S 166W,EXPECT CLOCKWISE WINDS UP TO 35 KNOTS OVER WATERS ONLY. AREA OF GALES SLOW MOVING. THIS WARNING CANCELS AND REPLACES WARNING 033. ********************************************************************* ************** PARTS 2 AND 3 : SYNOPSIS AND FORECAST VALID UNTIL Apr 120600 UTC. CONVERGENCE ZONE CZ1 11S 160E 16S 165E 23S 169E SLOW MOVING. POOR VISIBILITY IN OCCASIONAL SHOWERS, HEAVY AT TIMES AND FEW THUNDERSTORMS WITHIN 210 NAUTICAL MILES OF CZ1. WITHIN 180 NAUTICAL MILES OF CZ1, EXPECT NORTHWEST TO NORTHEAST WINDS 20 TO 25 KNOTS GUSTING TO 30 KNOTS. ROUGH TO VERY ROUGH SEAS. MODERATE NORTHERLY SWELLS. CONVERGENCE ZONE CZ2 10S 160W 08S 145W 07S 130W 07S 120W SLOW MOVING. POOR VISIBILITY IN OCCASIONAL SHOWERS, HEAVY AT TIMES AND FEW THUNDERSTORMS WITHIN 240 NAUTICAL MILES OF CZ2. TROUGH T1 04S 160E 08S 175E 11S 179W SLOW MOVING. POOR VISIBILITY IN OCCASIONAL SHOWERS AND FEW THUNDERSTORMS WITHIN 150 NAUTICAL MILES OF T1. TROUGH T2 12S 176W 18S 170W 20S 168W 25S 167W SLOW MOVING. POOR VISIBILITY IN OCCASIONAL SHOWERS AND FEW THUNDERSTORMS WITHIN 180 NAUTICAL MILES OF T2. TROUGH T3 09S 169W 13S 163W 16S 160W SLOW MOVING. POOR VISIBILITY IN OCCASIONAL SHOWERS AND FEW THUNDERSTORMS WITHIN 150 NAUTICAL MILES OF T3. TROUGH T4 17S 152W 21S 145W 25S 138W SLOW MOVING. POOR VISIBILITY IN OCCASIONAL SHOWERS, HEAVY AT TIMES AND FEW SQUALLY THUNDERSTORMS WITHIN 180 NAUTICAL MILES OF T4. TROUGH T5 25S 156W 22S 149W SLOW MOVING. POOR VISIBILITY IN OCCASIONAL SHOWERS, HEAVY AT TIMES AND FEW SQUALLY THUNDERSTORMS WITHIN 150 NAUTICAL MILES OF T5. OUTSIDE STORM WARNING NUMBER 034 AND IN THE AREA SOUTH OF 22S AND BETWEEN 165E AND 175E, EXPECT CLOCKWISE WINDS 20 TO 30 KNOTS. ROUGH TO VERY ROUGH SEAS. IN THE AREA SOUTH OF 15S AND BETWEEN 175E AND 135W, EXPECT MODERATE TO HEAVY SOUTHERLY SWELLS. IN THE AREA SOUTH OF EQ AND EAST OF 135W, EXPECT MODERATE SOUTHERLY SWELLS.

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