Advisories

WTPN32 PGTW 202100
MSGID/GENADMIN/JOINT TYPHOON WRNCEN PEARL HARBOR HI//
SUBJ/TROPICAL DEPRESSION 18W (EIGHTEEN) WARNING NR 001//
REF/A/MSG/JOINT TYPHOON WRNCEN PEARL HARBOR HI/200551ZAUG2026//
AMPN/REF A IS A TROPICAL CYCLONE FORMATION ALERT.//
RMKS/
1. TROPICAL DEPRESSION 18W (EIGHTEEN) WARNING NR 001    
   02 ACTIVE TROPICAL CYCLONES IN NORTHWESTPAC
   MAX SUSTAINED WINDS BASED ON ONE-MINUTE AVERAGE
   WIND RADII VALID OVER OPEN WATER ONLY
    ---
   WARNING POSITION:
   201800Z --- NEAR 20.1N 108.4E
     MOVEMENT PAST SIX HOURS - 290 DEGREES AT 08 KTS
     POSITION ACCURATE TO WITHIN 030 NM
     POSITION BASED ON CENTER LOCATED BY RADAR
   PRESENT WIND DISTRIBUTION:
   MAX SUSTAINED WINDS - 025 KT, GUSTS 035 KT
   WIND RADII VALID OVER OPEN WATER ONLY
   REPEAT POSIT: 20.1N 108.4E
    ---
   FORECASTS:
   12 HRS, VALID AT:
   210600Z --- 20.2N 108.3E
   MAX SUSTAINED WINDS - 025 KT, GUSTS 035 KT
   WIND RADII VALID OVER OPEN WATER ONLY
   VECTOR TO 24 HR POSIT: 360 DEG/ 01 KTS
    ---
   24 HRS, VALID AT:
   211800Z --- 20.4N 108.3E
   MAX SUSTAINED WINDS - 030 KT, GUSTS 040 KT
   WIND RADII VALID OVER OPEN WATER ONLY
   VECTOR TO 36 HR POSIT: 360 DEG/ 01 KTS
    ---
   36 HRS, VALID AT:
   220600Z --- 20.6N 108.3E
   MAX SUSTAINED WINDS - 030 KT, GUSTS 040 KT
   WIND RADII VALID OVER OPEN WATER ONLY
   VECTOR TO 48 HR POSIT: 025 DEG/ 01 KTS
    ---
   EXTENDED OUTLOOK:
   48 HRS, VALID AT:
   221800Z --- 20.8N 108.4E
   MAX SUSTAINED WINDS - 030 KT, GUSTS 040 KT
   WIND RADII VALID OVER OPEN WATER ONLY
   VECTOR TO 60 HR POSIT: 025 DEG/ 01 KTS
    ---
   60 HRS, VALID AT:
   230600Z --- 21.0N 108.5E
   MAX SUSTAINED WINDS - 030 KT, GUSTS 040 KT
   WIND RADII VALID OVER OPEN WATER ONLY
   VECTOR TO 72 HR POSIT: 025 DEG/ 01 KTS
    ---
   72 HRS, VALID AT:
   231800Z --- 21.2N 108.6E
   MAX SUSTAINED WINDS - 030 KT, GUSTS 040 KT
   WIND RADII VALID OVER OPEN WATER ONLY
   VECTOR TO 96 HR POSIT: 025 DEG/ 01 KTS
    ---
   LONG RANGE OUTLOOK:
    ---
   96 HRS, VALID AT:
   241800Z --- 21.4N 108.7E
   MAX SUSTAINED WINDS - 025 KT, GUSTS 035 KT
   WIND RADII VALID OVER OPEN WATER ONLY
   VECTOR TO 120 HR POSIT: 060 DEG/ 01 KTS
    ---
   120 HRS, VALID AT:
   251800Z --- 21.5N 108.9E
   MAX SUSTAINED WINDS - 025 KT, GUSTS 035 KT
   WIND RADII VALID OVER OPEN WATER ONLY
    ---
REMARKS:
202100Z POSITION NEAR 20.1N 108.4E.
20AUG26. TROPICAL DEPRESSION 18W (EIGHTEEN), LOCATED
APPROXIMATELY 150 NM EAST-SOUTHEAST OF HANOI, VIETNAM, HAS
TRACKED WEST-NORTHWESTWARD AT 08 KNOTS OVER THE PAST SIX HOURS.
MINIMUM CENTRAL PRESSURE AT 201800Z IS 995 MB.
MAXIMUM SIGNIFICANT WAVE HEIGHT AT 201800Z IS 9 FEET.
NEXT WARNINGS AT 210300Z, 210900Z, 211500Z AND 212100Z.
REFER TO TROPICAL STORM 17W (SAUDEL) WARNINGS (WTPN31 PGTW)
FOR SIX-HOURLY UPDATES.
2. THIS CANCELS AND SUPERSEDES REF A (WTPN21 PGTW 200600).//
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