Sunday, September 11, 2011

JTWC - Tropical Cyclone Advisory 01 - Tropical Depression 18W

WTPN31 PGTW 111500
MSGID/GENADMIN/NAVMARFCSTCEN PEARL HARBOR HI/JTWC//
SUBJ/TROPICAL CYCLONE WARNING//
RMKS/
1. TROPICAL DEPRESSION 18W (EIGHTEEN) WARNING NR 001
01 ACTIVE TROPICAL CYCLONE IN NORTHWESTPAC
MAX SUSTAINED WINDS BASED ON ONE-MINUTE AVERAGE
WIND RADII VALID OVER OPEN WATER ONLY
---
WARNING POSITION:
111200Z --- NEAR 21.2N 135.9E
MOVEMENT PAST SIX HOURS - 280 DEGREES AT 07 KTS
POSITION ACCURATE TO WITHIN 060 NM
POSITION BASED ON CENTER LOCATED BY SATELLITE
PRESENT WIND DISTRIBUTION:
MAX SUSTAINED WINDS - 025 KT, GUSTS 035 KT
WIND RADII VALID OVER OPEN WATER ONLY
REPEAT POSIT: 21.2N 135.9E
---
FORECASTS:
12 HRS, VALID AT:
120000Z --- 21.7N 134.3E
MAX SUSTAINED WINDS - 030 KT, GUSTS 040 KT
WIND RADII VALID OVER OPEN WATER ONLY
VECTOR TO 24 HR POSIT: 290 DEG/ 08 KTS
---
24 HRS, VALID AT:
121200Z --- 22.2N 132.6E
MAX SUSTAINED WINDS - 035 KT, GUSTS 045 KT
WIND RADII VALID OVER OPEN WATER ONLY
VECTOR TO 36 HR POSIT: 295 DEG/ 06 KTS
---
36 HRS, VALID AT:
130000Z --- 22.7N 131.5E
MAX SUSTAINED WINDS - 040 KT, GUSTS 050 KT
WIND RADII VALID OVER OPEN WATER ONLY
RADIUS OF 034 KT WINDS - 070 NM NORTHEAST QUADRANT
050 NM SOUTHEAST QUADRANT
050 NM SOUTHWEST QUADRANT
070 NM NORTHWEST QUADRANT
VECTOR TO 48 HR POSIT: 300 DEG/ 06 KTS
---
EXTENDED OUTLOOK:
48 HRS, VALID AT:
131200Z --- 23.3N 130.3E
MAX SUSTAINED WINDS - 050 KT, GUSTS 065 KT
WIND RADII VALID OVER OPEN WATER ONLY
RADIUS OF 034 KT WINDS - 080 NM NORTHEAST QUADRANT
070 NM SOUTHEAST QUADRANT
070 NM SOUTHWEST QUADRANT
075 NM NORTHWEST QUADRANT
VECTOR TO 72 HR POSIT: 315 DEG/ 06 KTS
---
72 HRS, VALID AT:
141200Z --- 24.9N 128.6E
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 - 095 NM NORTHEAST QUADRANT
090 NM SOUTHEAST QUADRANT
085 NM SOUTHWEST QUADRANT
090 NM NORTHWEST QUADRANT
VECTOR TO 96 HR POSIT: 330 DEG/ 07 KTS
---
LONG RANGE OUTLOOK:
---
96 HRS, VALID AT:
151200Z --- 27.4N 126.9E
MAX SUSTAINED WINDS - 050 KT, GUSTS 065 KT
WIND RADII VALID OVER OPEN WATER ONLY
VECTOR TO 120 HR POSIT: 355 DEG/ 07 KTS
---
120 HRS, VALID AT:
161200Z --- 30.1N 126.5E
MAX SUSTAINED WINDS - 045 KT, GUSTS 055 KT
WIND RADII VALID OVER OPEN WATER ONLY
---
REMARKS:
111500Z POSITION NEAR 21.3N 135.5E.
TROPICAL DEPRESSION (TD) 18W, LOCATED APPROXIMATELY 530NM EAST-
SOUTHEAST OF KADENA AIR BASE, OKINAWA, HAS TRACKED WESTWARD AT 07
KNOTS OVER THE PAST SIX HOURS. THIS WARNING SUPERSEDES AND CANCELS
REF A, NAVMARFCSTCEN 102021Z SEP 11 TROPICAL CYCLONE FORMATION ALERT
(WTPN21 PGTW 102030 ) MAXIMUM SIGNIFICANT WAVE HEIGHT AT 111200Z IS
10 FEET. NEXT WARNINGS AT 112100Z, 120300Z, 120900Z AND 121500Z.//
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