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wangsj1968|2017-8-9 00:20
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本帖最後由 wangsj1968 於 2017-8-9 00:28 編輯
JTWC Tropical Warnings最後一報
WTPN31 PGTW 081500MSGID/GENADMIN/JOINT TYPHOON WRNCEN PEARL HARBOR HI//SUBJ/TROPICAL CYCLONEFINAL WARNING//RMKS/
1. TROPICAL DEPRESSION 07W (NORU) WARNING NR 076
01 ACTIVE TROPICAL CYCLONE IN NORTHWESTPAC MAX SUSTAINED WINDS BASED ON ONE-MINUTE AVERAGE
WIND RADII VALID OVER OPEN WATER ONLY ---
WARNING POSITION: 081200Z --- NEAR 38.4N 139.1E MOVEMENT PAST SIX HOURS - 060 DEGREES AT 08 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 - 025 KT, GUSTS 035 KT
WIND RADII VALID OVER OPEN WATER ONLY DISSIPATING AS A SIGNIFICANT TROPICAL CYCLONE OVER WATER
REPEAT POSIT: 38.4N 139.1E ---
FORECASTS: 12 HRS, VALID AT: 090000Z --- 38.7N 140.2E 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: 085 DEG/ 05 KTS
--- 24 HRS, VALID AT: 091200Z --- 38.8N 141.5E MAX SUSTAINED WINDS - 015 KT, GUSTS 025 KT WIND RADII VALID OVER OPEN WATER ONLY DISSIPATED AS A SIGNIFICANT TROPICAL CYCLONE OVER LAND
---REMARKS:081500Z POSITION NEAR 38.5N 139.4E.TROPICAL DEPRESSION (TD) 07W (NORU), LOCATED APPROXIMATELY 155 NMSOUTHWEST OF MISAWA, JAPAN, HAS TRACKED EAST-NORTHEASTWARD AT 08KNOTS OVER THE PAST SIX HOURS.
ANIMATED ENHANCED INFRARED SATELLITE IMAGERY AND A 081223Z METOP-A 89GHZ IMAGE INDICATE RAPIDLY DECAYING DEEP CONVECTION ASSOCIATED WITH A DISORGANIZED LOW-LEVEL CIRCULATION CENTER (LLCC).
ANIMATED RADAR IMAGERY ALSO SHOWS A POORLY-DEFINED LLCC WITH FRAGMENTED BANDING, PRIMARILY OVER LAND. SURFACE OBSERVATIONS ARE GENERALLY LESS THAN 10 KNOTS WITH REPORTS NEAR THE CENTER FROM AWASHIMA NORTHERLY AT 4-6 KNOTS. DVORAK INTENSITY ESTIMATES FROM BOTH PGTW AND RJTD HAVE DECREASED TO 1.5/2.0, REFLECTING THE WEAKENING PHASE, THEREFORE THE INITIAL INTENSITY IS ASSESSED AT 25 KNOTS. TD 07W IS FORECAST TO TRACK EASTWARD OVER HONSHU AND IS EXPECTED TO DISSIPATE OVER LAND 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 081200Z IS 7 FEET.//NNNN
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