Advisories

WTPN32 PGTW 210900
MSGID/GENADMIN/JOINT TYPHOON WRNCEN PEARL HARBOR HI//
SUBJ/TROPICAL DEPRESSION 18W (EIGHTEEN) WARNING NR 003//
RMKS/
1. TROPICAL DEPRESSION 18W (EIGHTEEN) WARNING NR 003    
   02 ACTIVE TROPICAL CYCLONES IN NORTHWESTPAC
   MAX SUSTAINED WINDS BASED ON ONE-MINUTE AVERAGE
   WIND RADII VALID OVER OPEN WATER ONLY
    ---
   WARNING POSITION:
   210600Z --- NEAR 20.6N 108.6E
     MOVEMENT PAST SIX HOURS - 360 DEGREES AT 03 KTS
     POSITION ACCURATE TO WITHIN 060 NM
     POSITION BASED ON CENTER LOCATED BY A COMBINATION OF 
     SATELLITE AND RADAR
   PRESENT WIND DISTRIBUTION:
   MAX SUSTAINED WINDS - 030 KT, GUSTS 040 KT
   WIND RADII VALID OVER OPEN WATER ONLY
   REPEAT POSIT: 20.6N 108.6E
    ---
   FORECASTS:
   12 HRS, VALID AT:
   211800Z --- 20.9N 108.7E
   MAX SUSTAINED WINDS - 030 KT, GUSTS 040 KT
   WIND RADII VALID OVER OPEN WATER ONLY
   VECTOR TO 24 HR POSIT: 030 DEG/ 02 KTS
    ---
   24 HRS, VALID AT:
   220600Z --- 21.2N 108.9E
   MAX SUSTAINED WINDS - 030 KT, GUSTS 040 KT
   WIND RADII VALID OVER OPEN WATER ONLY
   VECTOR TO 36 HR POSIT: 070 DEG/ 01 KTS
    ---
   36 HRS, VALID AT:
   221800Z --- 21.3N 109.2E
   MAX SUSTAINED WINDS - 030 KT, GUSTS 040 KT
   WIND RADII VALID OVER OPEN WATER ONLY
   VECTOR TO 48 HR POSIT: 090 DEG/ 02 KTS
    ---
   EXTENDED OUTLOOK:
   48 HRS, VALID AT:
   230600Z --- 21.3N 109.6E
   MAX SUSTAINED WINDS - 030 KT, GUSTS 040 KT
   WIND RADII VALID OVER OPEN WATER ONLY
   VECTOR TO 60 HR POSIT: 075 DEG/ 02 KTS
    ---
   60 HRS, VALID AT:
   231800Z --- 21.4N 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 72 HR POSIT: 060 DEG/ 02 KTS
    ---
   72 HRS, VALID AT:
   240600Z --- 21.6N 110.4E
   MAX SUSTAINED WINDS - 020 KT, GUSTS 030 KT
   WIND RADII VALID OVER OPEN WATER ONLY
   DISSIPATED AS A SIGNIFICANT TROPICAL CYCLONE OVER LAND
    ---
REMARKS:
210900Z POSITION NEAR 20.7N 108.6E.
21AUG26. TROPICAL DEPRESSION 18W (EIGHTEEN), LOCATED
APPROXIMATELY 153 NM EAST OF HANOI, VIETNAM, HAS TRACKED
NORTHWARD AT 03 KNOTS OVER THE PAST SIX HOURS.
MINIMUM CENTRAL PRESSURE AT 210600Z IS 995 MB. MAXIMUM
SIGNIFICANT WAVE HEIGHT AT 210600Z IS 10 FEET. NEXT WARNINGS AT
211500Z, 212100Z, 220300Z AND 220900Z.
REFER TO TROPICAL STORM 17W (SAUDEL) WARNINGS (WTPN31 PGTW)
FOR SIX-HOURLY UPDATES.//
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