WTPN31 PGTW 170300

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

SUBJ/TROPICAL CYCLONE WARNING//

RMKS/

1. TROPICAL STORM 09W (CHANTHU) WARNING NR 016

   01 ACTIVE TROPICAL CYCLONE IN NORTHWESTPAC

   MAX SUSTAINED WINDS BASED ON ONE-MINUTE AVERAGE

   WIND RADII VALID OVER OPEN WATER ONLY

    ---

   WARNING POSITION:

   170000Z --- NEAR 37.7N 141.6E

     MOVEMENT PAST SIX HOURS - 010 DEGREES AT 15 KTS

     POSITION ACCURATE TO WITHIN 030 NM

     POSITION BASED ON CENTER LOCATED BY A COMBINATION OF

     SATELLITE AND RADAR

   PRESENT WIND DISTRIBUTION:

   MAX SUSTAINED WINDS - 035 KT, GUSTS 045 KT

   WIND RADII VALID OVER OPEN WATER ONLY

   BECOMING EXTRATROPICAL

   REPEAT POSIT: 37.7N 141.6E

    ---

   FORECASTS:

   12 HRS, VALID AT:

   171200Z --- 43.4N 143.3E

   MAX SUSTAINED WINDS - 035 KT, GUSTS 045 KT

   WIND RADII VALID OVER OPEN WATER ONLY

   EXTRATROPICAL

   VECTOR TO 24 HR POSIT: 010 DEG/ 37 KTS

    ---

   24 HRS, VALID AT:

   180000Z --- 50.6N 145.4E

   MAX SUSTAINED WINDS - 035 KT, GUSTS 045 KT

   WIND RADII VALID OVER OPEN WATER ONLY

   EXTRATROPICAL

    ---

REMARKS:

170300Z POSITION NEAR 39.1N 142.0E.

TROPICAL STORM 09W (CHANTHU), LOCATED APPROXIMATELY 171 NM NORTH-

NORTHEAST OF YOKOSUKA, JAPAN, HAS TRACKED  AT 15 KNOTS OVER THE

PAST SIX HOURS.

THIS IS THE FINAL WARNING ON THIS SYSTEM BY THE JOINT TYPHOON

WRNCEN PEARL HARBOR HI. THE SYSTEM WILL BE CLOSELY MONITORED FOR

SIGNS OF REGENERATION. MAXIMUM SIGNIFICANT WAVE HEIGHT AT 170000Z

IS 13 FEET.

//=