WTPN31 PGTW 160300 RRA

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

SUBJ/TROPICAL CYCLONE WARNING//

RMKS/

1. TROPICAL STORM 09W (CHANTHU) WARNING NR 012

   01 ACTIVE TROPICAL CYCLONE IN NORTHWESTPAC

   MAX SUSTAINED WINDS BASED ON ONE-MINUTE AVERAGE

   WIND RADII VALID OVER OPEN WATER ONLY

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   WARNING POSITION:

   160000Z --- NEAR 31.6N 142.3E

     MOVEMENT PAST SIX HOURS - 335 DEGREES AT 14 KTS

     POSITION ACCURATE TO WITHIN 060 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 - 120 NM NORTHEAST QUADRANT

                            020 NM SOUTHEAST QUADRANT

                            020 NM SOUTHWEST QUADRANT

                            070 NM NORTHWEST QUADRANT

   REPEAT POSIT: 31.6N 142.3E

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   FORECASTS:

   12 HRS, VALID AT:

   161200Z --- 34.1N 141.2E

   MAX SUSTAINED WINDS - 040 KT, GUSTS 050 KT

   WIND RADII VALID OVER OPEN WATER ONLY

   BECOMING EXTRATROPICAL

   RADIUS OF 034 KT WINDS - 130 NM NORTHEAST QUADRANT

                            030 NM SOUTHEAST QUADRANT

                            030 NM SOUTHWEST QUADRANT

                            070 NM NORTHWEST QUADRANT

   VECTOR TO 24 HR POSIT: 360 DEG/ 16 KTS

    ---

   24 HRS, VALID AT:

   170000Z --- 37.3N 141.2E

   MAX SUSTAINED WINDS - 035 KT, GUSTS 045 KT

   WIND RADII VALID OVER OPEN WATER ONLY

   BECOMING EXTRATROPICAL

   VECTOR TO 36 HR POSIT: 010 DEG/ 25 KTS

    ---

   36 HRS, VALID AT:

   171200Z --- 42.1N 142.5E

   MAX SUSTAINED WINDS - 035 KT, GUSTS 045 KT

   WIND RADII VALID OVER OPEN WATER ONLY=