WTPN31 PGTW 300900
MSGID/GENADMIN/JOINT TYPHOON WRNCEN PEARL HARBOR HI//
SUBJ/TROPICAL STORM 20W (NONGFA) WARNING NR 009//
RMKS/
1. TROPICAL STORM 20W (NONGFA) WARNING NR 009    
   01 ACTIVE TROPICAL CYCLONE IN NORTHWESTPAC
   MAX SUSTAINED WINDS BASED ON ONE-MINUTE AVERAGE
   WIND RADII VALID OVER OPEN WATER ONLY
    ---
   WARNING POSITION:
   300600Z --- NEAR 17.9N 106.6E
     MOVEMENT PAST SIX HOURS - 280 DEGREES AT 16 KTS
     POSITION ACCURATE TO WITHIN 040 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 - 080 NM NORTHEAST QUADRANT
                            040 NM SOUTHEAST QUADRANT
                            000 NM SOUTHWEST QUADRANT
                            060 NM NORTHWEST QUADRANT
   REPEAT POSIT: 17.9N 106.6E
    ---
   FORECASTS:
   12 HRS, VALID AT:
   301800Z --- 17.9N 103.3E
   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 24 HR POSIT: 270 DEG/ 15 KTS
    ---
   24 HRS, VALID AT:
   310600Z --- 18.0N 100.2E
   MAX SUSTAINED WINDS - 015 KT, GUSTS 025 KT
   WIND RADII VALID OVER OPEN WATER ONLY
   DISSIPATED AS A SIGNIFICANT TROPICAL CYCLONE OVER LAND
    ---
REMARKS:
300900Z POSITION NEAR 17.9N 105.8E.
30AUG25. TROPICAL STORM 20W (NONGFA), LOCATED APPROXIMATELY 150
NM NORTHWEST OF DA NANG, VIETNAM, HAS TRACKED WESTWARD AT 16
KNOTS OVER THE PAST SIX HOURS.
MINIMUM CENTRAL PRESSURE AT 300600Z IS 997 MB. MAXIMUM
SIGNIFICANT WAVE HEIGHT AT 300600Z IS 14 FEET.
NEXT WARNINGS AT 301500Z, 302100Z AND 310300Z.//
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