China/ Taiwan: Tropical Storm Haitang 302100Z position nr 24.8N 119.7E, moving NNW 13kt (JTWC) – Updated 30 Jul 2017 2120z (GMT/UTC)

Tropical Storm Haitang 12W

(Huaning in Philippines – Use hashtag )

MAXIMUM SIGNIFICANT WAVE HEIGHT AT 301800Z IS 12 FEET – JTWC

wp201712_5day Tropical Storm Haitang WUND 30

(Image: @wunderground)

wp201712_sat_anim Tropical Storm Haitang WUND 30

Joint Typhoon Warning Center (JTWC)

Tropical Storm 12W (Haitang) Warning #11
Issued at 30/2100Z

 

wp1217 Haitang JTWC 30

 

 

 

WTPN32 PGTW 302100
MSGID/GENADMIN/JOINT TYPHOON WRNCEN PEARL HARBOR HI//
SUBJ/TROPICAL CYCLONE WARNING//
RMKS/
1. TROPICAL STORM 12W (HAITANG) WARNING NR 011
02 ACTIVE TROPICAL CYCLONES IN NORTHWESTPAC
MAX SUSTAINED WINDS BASED ON ONE-MINUTE AVERAGE
WIND RADII VALID OVER OPEN WATER ONLY

WARNING POSITION:
301800Z — NEAR 24.2N 120.1E
MOVEMENT PAST SIX HOURS – 345 DEGREES AT 13 KTS
POSITION ACCURATE TO WITHIN 060 NM
POSITION BASED ON CENTER LOCATED BY A COMBINATION OF
SATELLITE, RADAR AND SYNOPTIC DATA
PRESENT WIND DISTRIBUTION:
MAX SUSTAINED WINDS – 035 KT, GUSTS 045 KT
WIND RADII VALID OVER OPEN WATER ONLY
RADIUS OF 034 KT WINDS – 040 NM NORTHEAST QUADRANT
040 NM SOUTHEAST QUADRANT
060 NM SOUTHWEST QUADRANT
060 NM NORTHWEST QUADRANT
REPEAT POSIT: 24.2N 120.1E

FORECASTS:
12 HRS, VALID AT:
310600Z — 26.5N 118.6E
MAX SUSTAINED WINDS – 030 KT, GUSTS 040 KT
WIND RADII VALID OVER OPEN WATER ONLY
DISSIPATING AS A SIGNIFICANT TROPICAL CYCLONE OVER LAND
VECTOR TO 24 HR POSIT: 330 DEG/ 12 KTS

24 HRS, VALID AT:
311800Z — 28.5N 117.2E
MAX SUSTAINED WINDS – 020 KT, GUSTS 030 KT
WIND RADII VALID OVER OPEN WATER ONLY
DISSIPATED AS A SIGNIFICANT TROPICAL CYCLONE OVER LAND

REMARKS:
302100Z POSITION NEAR 24.8N 119.7E.
TROPICAL STORM 12W (HAITANG), LOCATED APPROXIMATELY 94 NM
SOUTHWEST OF TAIPEI, TAIWAN, HAS TRACKED NORTH-NORTHWESTWARD AT
13 KNOTS OVER THE PAST SIX HOURS. MAXIMUM SIGNIFICANT WAVE
HEIGHT AT 301800Z IS 12 FEET. NEXT WARNINGS AT 310300Z,
310900Z AND 311500Z. REFER TO SUPER TYPHOON 07W (NORU)
WARNINGS (WTPN31 PGTW) FOR SIX-HOURLY UPDATES.//
NNNN

1710-00 JMA 00 Haitang

Himawari 8 near real time (link)

TS 1710 (Haitang)
Issued at 19:10 UTC, 30 July 2017

<Analysis at 18 UTC, 30 July>
Scale
Intensity
Center position N24°40′ (24.7°)
E120°20′ (120.3°)
Direction and speed of movement N 25 km/h (14 kt)
Central pressure 990 hPa
Maximum wind speed near center 18 m/s (35 kt)
Maximum wind gust speed 25 m/s (50 kt)
≥ 30 kt wind area S 440 km (240 NM)
N 220 km (120 NM)
<Forecast for 06 UTC, 31 July>
Intensity
TD
Center position of probability circle N28°10′ (28.2°)
E117°55′ (117.9°)
Direction and speed of movement NNW 40 km/h (21 kt)
Central pressure 992 hPa
Radius of probability circle 70 km (40 NM)
<Forecast for 18 UTC, 31 July>
Intensity
TD
Center position of probability circle N29°05′ (29.1°)
E116°10′ (116.2°)
Direction and speed of movement WNW 15 km/h (9 kt)
Central pressure 994 hPa
Radius of probability circle 90 km (50 NM)

TROPICAL STORM RISK

NW Pacific: Storm Alert issued at 30 Jul, 2017 18:00 GMT

Tropical Storm HAITANG is currently located near 24.2 N 120.1 E with maximum 1-min sustained winds of 35kts (40 mph). HAITANG is forecast to affect land to the following likelihood(s) at the given lead time(s):
Yellow Alert Country(s) or Province(s)
    Taiwan
        probability for TS is 90% currently
    China
        probability for TS is 70% within 12 hours
Yellow Alert City(s) and Town(s)
    T’aichung (24.1 N, 120.7 E)
        probability for TS is 70% currently

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 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/

201712W Haitang TSR1 30

(Image: TSR)

201712W_0 Haitang TSR2 30

(Image: TSR)

Other

MARITIME/SHIPPING

seawarn 30

JMA map 30

METAREA11 / TYPHOON_WARNING_JAPAN / 301800

WTJP22 RJTD 301800
WARNING 301800.
WARNING VALID 311800.
WARNING IS UPDATED EVERY 6 HOURS.
GALE WARNING.
TROPICAL STORM 1710 HAITANG (1710) 990 HPA
AT 24.7N 120.3E TAIWAN STRAIT MOVING NORTH 14 KNOTS.
POSITION FAIR.
MAX WINDS 35 KNOTS NEAR CENTER.
RADIUS OF OVER 30 KNOT WINDS 240 MILES SOUTH SEMICIRCLE AND 120 MILES
ELSEWHERE.
FORECAST POSITION FOR 310600UTC AT 28.2N 117.9E WITH 40 MILES RADIUS
OF 70 PERCENT PROBABILITY CIRCLE.
992 HPA.
BECOMING TROPICAL DEPRESSION.
FORECAST POSITION FOR 311800UTC AT 29.1N 116.2E WITH 50 MILES RADIUS
OF 70 PERCENT PROBABILITY CIRCLE.
994 HPA.
BECOMING TROPICAL DEPRESSION.

JAPAN METEOROLOGICAL AGENCY.=

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