WTPN32 PGTW 241500
MSGID/GENADMIN/JOINT TYPHOON WRNCEN PEARL HARBOR HI//
SUBJ/TROPICAL STORM 18W (NARRA) WARNING NR 016//
RMKS/
1. TROPICAL STORM 18W (NARRA) WARNING NR 016
03 ACTIVE TROPICAL CYCLONES IN NORTHWESTPAC
MAX SUSTAINED WINDS BASED ON ONE-MINUTE AVERAGE
WIND RADII VALID OVER OPEN WATER ONLY
---
WARNING POSITION:
241200Z --- NEAR 19.6N 107.3E
MOVEMENT PAST SIX HOURS - 180 DEGREES AT 03 KTS
POSITION ACCURATE TO WITHIN 060 NM
POSITION BASED ON CENTER LOCATED BY SATELLITE
PRESENT WIND DISTRIBUTION:
MAX SUSTAINED WINDS - 040 KT, GUSTS 050 KT
WIND RADII VALID OVER OPEN WATER ONLY
RADIUS OF 034 KT WINDS - 030 NM NORTHEAST QUADRANT
050 NM SOUTHEAST QUADRANT
060 NM SOUTHWEST QUADRANT
030 NM NORTHWEST QUADRANT
REPEAT POSIT: 19.6N 107.3E
---
FORECASTS:
12 HRS, VALID AT:
250000Z --- 19.4N 107.8E
MAX SUSTAINED WINDS - 035 KT, GUSTS 045 KT
WIND RADII VALID OVER OPEN WATER ONLY
RADIUS OF 034 KT WINDS - 020 NM NORTHEAST QUADRANT
040 NM SOUTHEAST QUADRANT
050 NM SOUTHWEST QUADRANT
020 NM NORTHWEST QUADRANT
VECTOR TO 24 HR POSIT: 065 DEG/ 05 KTS
---
24 HRS, VALID AT:
251200Z --- 19.8N 108.7E
MAX SUSTAINED WINDS - 035 KT, GUSTS 045 KT
WIND RADII VALID OVER OPEN WATER ONLY
RADIUS OF 034 KT WINDS - 020 NM NORTHEAST QUADRANT
030 NM SOUTHEAST QUADRANT
040 NM SOUTHWEST QUADRANT
020 NM NORTHWEST QUADRANT
VECTOR TO 36 HR POSIT: 045 DEG/ 05 KTS
---
36 HRS, VALID AT:
260000Z --- 20.6N 109.5E
MAX SUSTAINED WINDS - 030 KT, GUSTS 040 KT
WIND RADII VALID OVER OPEN WATER ONLY
VECTOR TO 48 HR POSIT: 025 DEG/ 06 KTS
---
EXTENDED OUTLOOK:
48 HRS, VALID AT:
261200Z --- 21.7N 110.0E
MAX SUSTAINED WINDS - 025 KT, GUSTS 035 KT
WIND RADII VALID OVER OPEN WATER ONLY
DISSIPATING AS A SIGNIFICANT TROPICAL CYCLONE OVER LAND
VECTOR TO 60 HR POSIT: 015 DEG/ 04 KTS
---
60 HRS, VALID AT:
270000Z --- 22.5N 110.2E
MAX SUSTAINED WINDS - 020 KT, GUSTS 030 KT
WIND RADII VALID OVER OPEN WATER ONLY
DISSIPATED AS A SIGNIFICANT TROPICAL CYCLONE OVER LAND
---
REMARKS:
241500Z POSITION NEAR 19.5N 107.4E. 24AUG26. TROPICAL STORM 18W
(NARRA), LOCATED APPROXIMATELY 115 NM SOUTHEAST OF HANOI, VIETNAM, HAS
TRACKED SOUTHWARD AT 03 KNOTS OVER THE PAST SIX HOURS. MINIMUM CENTRAL PRESSURE AT 241200Z IS 990 MB. MAXIMUM SIGNIFICANT WAVE HEIGHT AT
241200Z IS 13 FEET. NEXT WARNINGS AT 242100Z, 250300Z, 250900Z AND
251500Z. REFER TO TYPHOON 17W (SAUDEL) WARNINGS (WTPN31 PGTW) FOR SIX-
HOURLY UPDATES. REFER TO TROPICAL DEPRESSION 19W (ATSANI) WARNINGS
(WTPN33 PGTW) FOR SIX-HOURLY UPDATES.//
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