簽到天數: 1650 天 [LV.Master]伴壇終老
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老農民版夜神月|2021-9-13 06:49
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JTWC發布Final Warning
WTPN31 PGTW 122100
MSGID/GENADMIN/JOINT TYPHOON WRNCEN PEARL HARBOR HI//
SUBJ/TROPICAL DEPRESSION 18W (CONSON) WARNING NR 028//
RMKS/
1. TROPICAL DEPRESSION 18W (CONSON) WARNING NR 028
02 ACTIVE TROPICAL CYCLONES IN NORTHWESTPAC
MAX SUSTAINED WINDS BASED ON ONE-MINUTE AVERAGE
WIND RADII VALID OVER OPEN WATER ONLY
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WARNING POSITION:
121800Z --- NEAR 15.4N 109.1E
MOVEMENT PAST SIX HOURS - 315 DEGREES AT 01 KTS
POSITION ACCURATE TO WITHIN 045 NM
POSITION BASED ON CENTER LOCATED BY A COMBINATION OF
SATELLITE AND RADAR
PRESENT WIND DISTRIBUTION:
MAX SUSTAINED WINDS - 025 KT, GUSTS 035 KT
WIND RADII VALID OVER OPEN WATER ONLY
DISSIPATING AS A SIGNIFICANT TROPICAL CYCLONE OVER WATER
REPEAT POSIT: 15.4N 109.1E
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FORECASTS:
12 HRS, VALID AT:
130600Z --- 16.1N 108.0E
MAX SUSTAINED WINDS - 020 KT, GUSTS 030 KT
WIND RADII VALID OVER OPEN WATER ONLY
DISSIPATED AS A SIGNIFICANT TROPICAL CYCLONE OVER LAND
VECTOR TO 24 HR POSIT: 290 DEG/ 08 KTS
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24 HRS, VALID AT:
131800Z --- 16.6N 106.5E
MAX SUSTAINED WINDS - 015 KT, GUSTS 025 KT
WIND RADII VALID OVER OPEN WATER ONLY
DISSIPATED AS A SIGNIFICANT TROPICAL CYCLONE OVER LAND
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REMARKS:
122100Z POSITION NEAR 15.6N 108.8E.
12SEP21. TROPICAL DEPRESSION (TD) 18W (CONSON), LOCATED APPROXIMATELY
59 NM SOUTHEAST OF DA NANG, VIETNAM, HAS TRACKED NORTHWESTWARD AT
01 KNOTS OVER THE PAST SIX HOURS. ANIMATED ENHANCED INFRARED
SATELLITE IMAGERY AND ANIMATED RADAR IMAGERY DEPICT A DECAYING LOW-
LEVEL CIRCULATION WITH A WEAKLY DEFINED CENTER. UPPER-LEVEL ANALYSIS
INDICATES UNFAVORABLE CONDITIONS WITH MODERATE TO STRONG EASTERLY
VERTICAL WIND SHEAR, WHICH WILL PERSIST THROUGH THE FORECAST PERIOD.
SURFACE OBSERVATIONS FROM QUANG NGAI, 20NM TO THE SOUTHWEST,
INDICATE STEADILY RISING SLP WITH A 12/18Z SLP VALUE AT 1001.4MB
REFLECTING THE STEADY WEAKENING TREND. THE SYSTEM IS FORECAST TO
TRACK NORTHWESTWARD INTO VIETNAM WITH DISSIPATION BY TAU 12. 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 121800Z IS 12 FEET.
REFER TO TYPHOON 19W (CHANTHU) WARNINGS (WTPN32 PGTW) FOR SIX-HOURLY
UPDATES.//
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