WTPN33 PGTW 250900
MSGID/GENADMIN/JOINT TYPHOON WRNCEN PEARL HARBOR HI//
SUBJ/TROPICAL DEPRESSION 19W (ATSANI) WARNING NR 012//
RMKS/
1. TROPICAL DEPRESSION 19W (ATSANI) WARNING NR 012
03 ACTIVE TROPICAL CYCLONES IN NORTHWESTPAC
MAX SUSTAINED WINDS BASED ON ONE-MINUTE AVERAGE
WIND RADII VALID OVER OPEN WATER ONLY
---
WARNING POSITION:
250600Z --- NEAR 20.6N 137.3E
MOVEMENT PAST SIX HOURS - 330 DEGREES AT 16 KTS
POSITION ACCURATE TO WITHIN 050 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
DISSIPATING AS A SIGNIFICANT TROPICAL CYCLONE OVER WATER
REPEAT POSIT: 20.6N 137.3E
---
FORECASTS:
12 HRS, VALID AT:
251800Z --- 22.4N 136.0E
MAX SUSTAINED WINDS - 020 KT, GUSTS 030 KT
WIND RADII VALID OVER OPEN WATER ONLY
DISSIPATED AS A SIGNIFICANT TROPICAL CYCLONE OVER WATER
---
REMARKS:
250900Z POSITION NEAR 21.0N 137.0E.
25AUG26. TROPICAL DEPRESSION 19W (ATSANI), LOCATED APPROXIMATELY
335 NM SOUTHWEST OF IWO TO, HAS TRACKED NORTH-NORTHWESTWARD AT 16
KNOTS OVER THE PAST SIX HOURS. ANIMATED MULTISPECTRAL SATELLITE
IMAGERY (MSI) DEPICS A HEAVILY SHEARED AND ASYMMETRIC SYSTEM WITH
A FULLY EXPOSED LOW-LEVEL CIRCULATION CENTER (LLCC). FRAGILE AND
SHORT-LIVED CONVECTIVE FLARE-UPS CAN BE SEEN TO THE WEST, HOWEVER,
PERSISTENT DRY AIR ENTRAINMENT AND HIGH (25-30 KTS) NORTHEASTERLY
VERTICAL WIND SHEAR (VWS) ARE DRIVING THE TERMINAL DECAY OF TROPICAL
DEPRESSION (TD) 19W. 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. MINIMUM CENTRAL PRESSURE AT
250600Z IS 1006 MB. MAXIMUM SIGNIFICANT WAVE HEIGHT AT 250600Z IS
12 FEET. REFER TO TYPHOON 17W (SAUDEL) WARNINGS (WTPN31 PGTW) FOR
SIX-HOURLY UPDATES. REFER TO TROPICAL STORM 18W (NARRA) WARNINGS
(WTPN32 PGTW) FOR SIX-HOURLY UPDATES.//
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