WTPN32 PGTW 092100
MSGID/GENADMIN/JOINT TYPHOON WRNCEN PEARL HARBOR HI//
SUBJ/TROPICAL STORM 13W (LUPIT) WARNING NR 029//
RMKS/
1. TROPICAL STORM 13W (LUPIT) WARNING NR 029
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:
091800Z --- NEAR 38.7N 138.0E
MOVEMENT PAST SIX HOURS - 050 DEGREES AT 19 KTS
POSITION ACCURATE TO WITHIN 040 NM
POSITION BASED ON CENTER LOCATED BY A COMBINATION OF
SATELLITE AND RADAR
PRESENT WIND DISTRIBUTION:
MAX SUSTAINED WINDS - 040 KT, GUSTS 050 KT
WIND RADII VALID OVER OPEN WATER ONLY
BECOMING EXTRATROPICAL
RADIUS OF 034 KT WINDS - 285 NM NORTHEAST QUADRANT
260 NM SOUTHEAST QUADRANT
245 NM SOUTHWEST QUADRANT
300 NM NORTHWEST QUADRANT
REPEAT POSIT: 38.7N 138.0E
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FORECASTS:
12 HRS, VALID AT:
100600Z --- 40.6N 142.7E
MAX SUSTAINED WINDS - 040 KT, GUSTS 050 KT
WIND RADII VALID OVER OPEN WATER ONLY
EXTRATROPICAL
RADIUS OF 034 KT WINDS - 240 NM NORTHEAST QUADRANT
250 NM SOUTHEAST QUADRANT
260 NM SOUTHWEST QUADRANT
250 NM NORTHWEST QUADRANT
VECTOR TO 24 HR POSIT: 070 DEG/ 19 KTS
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24 HRS, VALID AT:
101800Z --- 41.7N 147.5E
MAX SUSTAINED WINDS - 045 KT, GUSTS 055 KT
WIND RADII VALID OVER OPEN WATER ONLY
EXTRATROPICAL
RADIUS OF 034 KT WINDS - 220 NM NORTHEAST QUADRANT
220 NM SOUTHEAST QUADRANT
250 NM SOUTHWEST QUADRANT
210 NM NORTHWEST QUADRANT
---
REMARKS:
092100Z POSITION NEAR 39.2N 139.2E.
09AUG21. TROPICAL STORM 13W (LUPIT), LOCATED APPROXIMATELY 180 NM
SOUTHWEST OF MISAWA, JAPAN, HAS TRACKED NORTHEASTWARD AT 19 KNOTS
OVER THE PAST SIX HOURS. ANIMATED ENHANCED INFRARED (EIR) SATELLITE
IMAGERY DEPICTS A BROAD, ASYMMETRIC CIRCULATION WITH WEAK CONVECTION
BEING SHEARED TO THE NORTH. THE INITIAL POSITION IS PLACED WITH HIGH
CONFIDENCE BASED ON SURFACE RADAR AND A PGTW FIX. THE INITIAL
INTENSITY OF 40 KTS IS BASED ON SURFACE OBSERVATIONS AND A PGTW
DVORAK INTENSITY ESTIMATE OF T3.0. TS 13W IS CURRENTLY UNDERGOING
EXTRATROPICAL TRANSITION (ETT) AS IT ENTERS THE BAROCLINIC ZONE AND
IS UNDER HIGH (>30KTS) VERTICAL WIND SHEAR FROM AN UPPER-LEVEL
TROUGH. THE SYSTEM WILL CONTINUE TO TRACK EAST-NORTHEASTWARD OVER
NORTHERN HONSHU AND WILL COMPLETE ETT 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 091800Z IS 15 FEET. REFER TO
TROPICAL STORM 14W (MIRINAE) FINAL WARNING (WTPN31 PGTW).//
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