Vietnam/ Laos/ China: Severe Tropical Storm TALAS 06W 161200Z nr 18.5N 107.2E, moving WNW 12kt (JMA) – Published 16 Jul 2017 1410z (GMT/UTC)

Severe Tropical Storm TALAS 06W

MAXIMUM SIGNIFICANT WAVE HEIGHT AT 160600Z IS 14 FEET (JTWC)

STS 1704 (Talas)
Issued at 12:50 UTC, 16 July 2017

<Analysis at 12 UTC, 16 July>
Scale
Intensity
Center position N18°30′ (18.5°)
E107°10′ (107.2°)
Direction and speed of movement WNW 20 km/h (12 kt)
Central pressure 990 hPa
Maximum wind speed near center 25 m/s (50 kt)
Maximum wind gust speed 35 m/s (70 kt)
≥ 30 kt wind area SE 440 km (240 NM)
NW 330 km (180 NM)
<Forecast for 00 UTC, 17 July>
Intensity
Center position of probability circle N18°40′ (18.7°)
E104°20′ (104.3°)
Direction and speed of movement W 25 km/h (14 kt)
Central pressure 996 hPa
Maximum wind speed near center 18 m/s (35 kt)
Maximum wind gust speed 25 m/s (50 kt)
Radius of probability circle 70 km (40 NM)
<Forecast for 12 UTC, 17 July>
Intensity
TD
Center position of probability circle N19°25′ (19.4°)
E100°55′ (100.9°)
Direction and speed of movement W 30 km/h (16 kt)
Central pressure 1000 hPa
Radius of probability circle 110 km (60 NM)

 

hko_logo

Tropical Storm TALAS
at 17:00 HKT 16 July 2017

Position: 18.4 N, 107.8 E (about 790 km west-southwest of Hong Kong)
Maximum sustained wind near centre: 85 km/h
Talas will move across Beibu Wan today, and then move into the inland areas of Indo-China and dissipate gradually.

Tropical Cyclone Track at 17:00 HKT 16 July 2017

Tropical Cyclone Track at 17:00 HKT 16 July 2017

Forecast Positions and Intensities

Date time Position Classification Maximum sustained wind near centre
17:00 HKT 17 July 2017 19.3 N 101.6 E Tropical Depression 45 km/h
17:00 HKT 18 July 2017 20.5 N 96.7 E Low Pressure Area 25 km/h

( Past Positions and Intensities )

Notes

  • The symbol low pressure area symbol will be displayed when the tropical cyclone is expected to weaken into a low pressure area or transform into an extratropical low.
  • Past track is in black, forecast track is in red.
  • The tropical cyclone symbol in different colours are the forecast positions of the tropical cyclone at different times (as shown at the upper left corner of the figure).
  • While the forecast positions and track indicate the most likely future path of the tropical cyclone, they may deviate from the actual path taken by the storm. The yellow shaded area on the map indicates the probable area within which the tropical cyclone will fall with a probability of 70% (‘Potential Track Area’). Literally, it means that in 10 times of track forecast for similar situations, the tropical cyclone will be centred within the indicated area in about 7 times. The area grows as the forecast hour increases. It will be particularly larger beyond 72 hours and is indicated with lighter shadings on the map. The size in terms of radius of the ‘Potential Track Area’ corresponding to different forecast hours are determined from the error statistics of the forecasts issued in past years and are as shown in the following table:
    Analysed Position 30 km
    24-hour forecast position 125 km
    48-hour forecast position 225 km
    72-hour forecast position 325 km
    96-hour forecast position 400 km
    120-hour forecast position 500 km
  • The tropical cyclone track, analysed positions and maximum sustained wind near centre are based on Hong Kong Observatory’s tropical cyclone warning for shipping issued eight times a day at 0:30, 3:30, 6:30, 9:30, 12:30, 15:30, 18:30 and 21:30 HKT, about one and a half hours after the time of observation. The analysed positions incorporate additional information derived from surface and upper-air data and may therefore be slightly different from the real-time satellite or radar-based provisional positions given in the hourly bulletins for public. Meanwhile, the webpage will also display other information, including distance and bearing of the tropical cyclone relative to Hong Kong.
  • The past tropical cyclone track, analysed positions and maximum sustained wind near centre may be updated when additional data is received.
  • Short-term erratic departures of the tropical cyclone from the general direction of movement may occur from time to time. These departures are partly due to uncertainties in locating the centre of the tropical cyclone, and partly due to actual short-term variations in the direction and speed of movement of the tropical cyclone itself.

Joint Typhoon Warning Center (JTWC)

Tropical Storm 06W (Talas) Warning #04
Issued at 16/0900Z

 

 

WTPN31 PGTW 160900
MSGID/GENADMIN/JOINT TYPHOON WRNCEN PEARL HARBOR HI//
SUBJ/TROPICAL CYCLONE WARNING//
RMKS/
1. TROPICAL STORM 06W (TALAS) WARNING NR 004
01 ACTIVE TROPICAL CYCLONE IN NORTHWESTPAC
MAX SUSTAINED WINDS BASED ON ONE-MINUTE AVERAGE
WIND RADII VALID OVER OPEN WATER ONLY

WARNING POSITION:
160600Z — NEAR 18.1N 108.4E
MOVEMENT PAST SIX HOURS – 290 DEGREES AT 10 KTS
POSITION ACCURATE TO WITHIN 045 NM
POSITION BASED ON CENTER LOCATED BY A COMBINATION OF
SATELLITE AND SYNOPTIC DATA
PRESENT WIND DISTRIBUTION:
MAX SUSTAINED WINDS – 050 KT, GUSTS 065 KT
WIND RADII VALID OVER OPEN WATER ONLY
RADIUS OF 050 KT WINDS – 025 NM NORTHEAST QUADRANT
025 NM SOUTHEAST QUADRANT
025 NM SOUTHWEST QUADRANT
025 NM NORTHWEST QUADRANT
RADIUS OF 034 KT WINDS – 095 NM NORTHEAST QUADRANT
100 NM SOUTHEAST QUADRANT
075 NM SOUTHWEST QUADRANT
090 NM NORTHWEST QUADRANT
REPEAT POSIT: 18.1N 108.4E

FORECASTS:
12 HRS, VALID AT:
161800Z — 18.6N 106.2E
MAX SUSTAINED WINDS – 055 KT, GUSTS 070 KT
WIND RADII VALID OVER OPEN WATER ONLY
RADIUS OF 050 KT WINDS – 025 NM NORTHEAST QUADRANT
025 NM SOUTHEAST QUADRANT
025 NM SOUTHWEST QUADRANT
025 NM NORTHWEST QUADRANT
RADIUS OF 034 KT WINDS – 110 NM NORTHEAST QUADRANT
070 NM SOUTHEAST QUADRANT
030 NM SOUTHWEST QUADRANT
070 NM NORTHWEST QUADRANT
VECTOR TO 24 HR POSIT: 285 DEG/ 13 KTS

24 HRS, VALID AT:
170600Z — 19.2N 103.6E
MAX SUSTAINED WINDS – 040 KT, GUSTS 050 KT
WIND RADII VALID OVER OPEN WATER ONLY
DISSIPATING AS A SIGNIFICANT TROPICAL CYCLONE OVER LAND
VECTOR TO 36 HR POSIT: 285 DEG/ 14 KTS

36 HRS, VALID AT:
171800Z — 20.0N 100.7E
MAX SUSTAINED WINDS – 020 KT, GUSTS 030 KT
WIND RADII VALID OVER OPEN WATER ONLY
DISSIPATED AS A SIGNIFICANT TROPICAL CYCLONE OVER LAND

REMARKS:
160900Z POSITION NEAR 18.2N 107.8E.
TROPICAL STORM 06W (TALAS), LOCATED APPROXIMATELY 126 NM NORTH OF
DA NANG, VIETNAM, HAS TRACKED WEST-NORTHWESTWARD AT 10 KNOTS OVER
THE PAST SIX HOURS. MAXIMUM SIGNIFICANT WAVE HEIGHT AT 160600Z IS
14 FEET. NEXT WARNINGS AT 161500Z, 162100Z, 170300Z AND 170900Z.//
NNNN

TROPICAL STORM RISK

NW Pacific: TSR Storm Alert issued at 16 Jul, 2017 12:00 GMT

Tropical Storm TALAS is currently located near 18.5 N 107.2 E with maximum 1-min sustained winds of 50kts (58 mph). TALAS is forecast to affect land to the following likelihood(s) at the given lead time(s):
Yellow Alert Country(s) or Province(s)
    Vietnam
        probability for TS is 85% within 12 hours
    Laos
        probability for TS is 80% within 12 hours
    China
        probability for TS is 65% currently
Yellow Alert City(s) and Town(s)
    Thanh Hoa (19.8 N, 105.8 E)
        probability for TS is 80% within 12 hours
    Vinh (18.7 N, 105.7 E)
        probability for TS is 80% within 12 hours
    Dong Hoi (17.5 N, 106.6 E)
        probability for TS is 80% within 12 hours
    Thai Binh (20.5 N, 106.3 E)
        probability for TS is 65% within 12 hours

Green Alert Country(s) or Province(s)
    Thailand
        probability for TS is 50% within 12 hours
Green Alert City(s) and Town(s)
    Dong Ha (16.8 N, 107.1 E)
        probability for TS is 40% currently

Note that
Yellow Alert (Elevated) is CAT 1 or above to between 10% and 30% probability, or TS to above 50% probability.
Green Alert (Low) is TS to between 31% and 50% probability.
CAT 1 means Typhoon 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.

For graphical forecast information and further details please visit http://www.tropicalstormrisk.com/

(Image: TSR)

(Image: TSR)

MARITIME/SHIPPING

(Image: JMA)

METAREA11 / TYPHOON_WARNING_JAPAN / 1200

WTJP21 RJTD 161200
WARNING 161200.
WARNING VALID 171200.
WARNING IS UPDATED EVERY 6 HOURS.
STORM WARNING.
SEVERE TROPICAL STORM 1704 TALAS (1704) 990 HPA
AT 18.5N 107.2E GULF OF TONGKING MOVING WESTNORTHWEST 12 KNOTS.
POSITION FAIR.
MAX WINDS 50 KNOTS NEAR CENTER.
RADIUS OF OVER 30 KNOT WINDS 240 MILES SOUTHEAST SEMICIRCLE AND 180
MILES ELSEWHERE.
FORECAST POSITION FOR 170000UTC AT 18.7N 104.3E WITH 40 MILES RADIUS
OF 70 PERCENT PROBABILITY CIRCLE.
996 HPA, MAX WINDS 35 KNOTS NEAR CENTER.
FORECAST POSITION FOR 171200UTC AT 19.4N 100.9E WITH 60 MILES RADIUS
OF 70 PERCENT PROBABILITY CIRCLE.
1000 HPA.
BECOMING TROPICAL DEPRESSION.

JAPAN METEOROLOGICAL AGENCY.=

hko_logo

Tropical Cyclone Warning for Shipping

Tropical Cyclone Warning |  Track and Positions of Tropical Cyclones
Current Weather |  Local Weather Forecast |  9-day Weather Forecast
South China Coastal Waters |  Marine Forecast
Severe Weather Information Centre

Tropical Cyclone Warning |  Track and Positions of Tropical Cyclones
Current Weather |  Local Weather Forecast |  9-day Weather Forecast
South China Coastal Waters |  Marine Forecast
Severe Weather Information Centre

Bulletin issued at 18:30 HKT 16/Jul/2017

Tropical Cyclone WarningAt 160900 UTC, Tropical Storm Talas (1704) with central pressure 988 hectopascals was centred within 60 nautical miles of one eight point four degrees north (18.4 N) one zero seven point eight degrees east (107.8 E) and is forecast to move west or west-northwest at about 14 knots for the next 24 hours.

Maximum winds near the centre are estimated to be 45 knots.

Radius of over 33 knot winds 45 nautical miles.
Radius of over 2 metre waves 240 nautical miles.

Forecast position and intensity at 170900 UTC
One nine point three degrees north (19.3 N)
One zero one point six degrees east (101.6 E)
Maximum winds 25 knots.

Forecast position and intensity at 180900 UTC
Dissipated over land.


The Hong Kong Observatory’s tropical cyclone warnings for shipping are issued about one and a half hours after the time of observation. They incorporate additional information derived from surface and upper-air data and may therefore be slightly different from the real-time satellite or radar-based positions given in the hourly bulletins for public.

While the forecast positions and track indicate the most likely future path of the tropical cyclone, they may deviate from the actual path taken by the storm.
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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One thought on “Vietnam/ Laos/ China: Severe Tropical Storm TALAS 06W 161200Z nr 18.5N 107.2E, moving WNW 12kt (JMA) – Published 16 Jul 2017 1410z (GMT/UTC)

  1. TROPICAL STORM RISK

    NW Pacific: TSR Storm Alert issued at 15 Jul, 2017 18:00 GMT

    Tropical Storm TALAS is currently located near 17.2 N 110.5 E with maximum 1-min sustained winds of 35kts (40 mph). TALAS is forecast to affect land to the following likelihood(s) at the given lead time(s):

    Yellow Alert Country(s) or Province(s)
    China
    probability for TS is 90% within 12 hours
    Vietnam
    probability for TS is 60% within 12 hours
    Yellow Alert City(s) and Town(s)
    Yaxian (18.4 N, 109.4 E)
    probability for TS is 85% within 12 hours

    Green Alert Country(s) or Province(s)
    Laos
    probability for TS is 40% in about 24 hours
    Green Alert City(s) and Town(s)
    Da Nang (16.1 N, 108.2 E)
    probability for TS is 50% within 12 hours
    Dong Hoi (17.5 N, 106.6 E)
    probability for TS is 50% in about 24 hours
    Dong Ha (16.8 N, 107.1 E)
    probability for TS is 50% in about 24 hours
    Vinh (18.7 N, 105.7 E)
    probability for TS is 40% in about 24 hours

    Note that
    Yellow Alert (Elevated) is CAT 1 or above to between 10% and 30% probability, or TS to above 50% probability.
    Green Alert (Low) is TS to between 31% and 50% probability.
    CAT 1 means Typhoon 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.

    For graphical forecast information and further details please visit http://www.tropicalstormrisk.com/


    Like

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