WTPN31 PGTW 121500

MSGID/GENADMIN/JOINT TYPHOON WRNCEN PEARL HARBOR HI//

SUBJ/TROPICAL CYCLONE WARNING//

RMKS/

1. TROPICAL STORM 09W (CHAN-HOM) WARNING NR 049

   02 ACTIVE TROPICAL CYCLONES IN NORTHWESTPAC

   MAX SUSTAINED WINDS BASED ON ONE-MINUTE AVERAGE

   WIND RADII VALID OVER OPEN WATER ONLY

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   WARNING POSITION:

   121200Z --- NEAR 36.8N 124.7E

     MOVEMENT PAST SIX HOURS - 015 DEGREES AT 20 KTS

     POSITION ACCURATE TO WITHIN 060 NM

     POSITION BASED ON CENTER LOCATED BY SATELLITE

   PRESENT WIND DISTRIBUTION:

   MAX SUSTAINED WINDS - 045 KT, GUSTS 055 KT

   WIND RADII VALID OVER OPEN WATER ONLY

   RADIUS OF 034 KT WINDS - 150 NM NORTHEAST QUADRANT

                            130 NM SOUTHEAST QUADRANT

                            115 NM SOUTHWEST QUADRANT

                            140 NM NORTHWEST QUADRANT

   REPEAT POSIT: 36.8N 124.7E

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   FORECASTS:

   12 HRS, VALID AT:

   130000Z --- 39.6N 126.3E

   MAX SUSTAINED WINDS - 035 KT, GUSTS 045 KT

   WIND RADII VALID OVER OPEN WATER ONLY

   DISSIPATING AS A SIGNIFICANT TROPICAL CYCLONE OVER LAND

   VECTOR TO 24 HR POSIT: 050 DEG/ 10 KTS

    ---

   24 HRS, VALID AT:

   131200Z --- 40.9N 128.3E

   MAX SUSTAINED WINDS - 020 KT, GUSTS 030 KT

   WIND RADII VALID OVER OPEN WATER ONLY

   DISSIPATED AS A SIGNIFICANT TROPICAL CYCLONE OVER LAND

    ---

REMARKS:

121500Z POSITION NEAR 37.5N 125.1E.

TROPICAL STORM 09W (CHAN-HOM), LOCATED APPROXIMATELY 100 NM WEST-

SOUTHWEST OF INCHON, SOUTH KOREA, HAS TRACKED NORTH-NORTHEASTWARD

AT 20 KNOTS OVER THE PAST SIX HOURS. MAXIMUM SIGNIFICANT WAVE HEIGHT

AT 121200Z IS 20 FEET. NEXT WARNINGS AT 122100Z, 130300Z AND 130900Z.

REFER TO TYPHOON 11W (NANGKA) WARNINGS (WTPN33 PGTW) FOR SIX-HOURLY

UPDATES.//