WTPN32 PGTW 042100

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

SUBJ/TROPICAL CYCLONE WARNING//

RMKS/

1. TYPHOON 21W (CHABA) WARNING NR 028

   01 ACTIVE TROPICAL CYCLONE IN NORTHWESTPAC

   MAX SUSTAINED WINDS BASED ON ONE-MINUTE AVERAGE

   WIND RADII VALID OVER OPEN WATER ONLY

    ---

   WARNING POSITION:

   041800Z --- NEAR 32.5N 126.6E

     MOVEMENT PAST SIX HOURS - 020 DEGREES AT 15 KTS

     POSITION ACCURATE TO WITHIN 060 NM

     POSITION BASED ON CENTER LOCATED BY A COMBINATION OF

     SATELLITE, RADAR AND SYNOPTIC DATA

   PRESENT WIND DISTRIBUTION:

   MAX SUSTAINED WINDS - 085 KT, GUSTS 105 KT

   WIND RADII VALID OVER OPEN WATER ONLY

   BECOMING EXTRATROPICAL

   RADIUS OF 064 KT WINDS - 025 NM NORTHEAST QUADRANT

                            025 NM SOUTHEAST QUADRANT

                            025 NM SOUTHWEST QUADRANT

                            025 NM NORTHWEST QUADRANT

   RADIUS OF 050 KT WINDS - 030 NM NORTHEAST QUADRANT

                            040 NM SOUTHEAST QUADRANT

                            040 NM SOUTHWEST QUADRANT

                            035 NM NORTHWEST QUADRANT

   RADIUS OF 034 KT WINDS - 130 NM NORTHEAST QUADRANT

                            120 NM SOUTHEAST QUADRANT

                            075 NM SOUTHWEST QUADRANT

                            110 NM NORTHWEST QUADRANT

   REPEAT POSIT: 32.5N 126.6E

    ---

   FORECASTS:

   12 HRS, VALID AT:

   050600Z --- 35.9N 132.0E

   MAX SUSTAINED WINDS - 060 KT, GUSTS 075 KT

   WIND RADII VALID OVER OPEN WATER ONLY

   BECOMING EXTRATROPICAL

   RADIUS OF 050 KT WINDS - 050 NM NORTHEAST QUADRANT

                            050 NM SOUTHEAST QUADRANT

                            050 NM SOUTHWEST QUADRANT

                            050 NM NORTHWEST QUADRANT

   RADIUS OF 034 KT WINDS - 175 NM NORTHEAST QUADRANT

                            125 NM SOUTHEAST QUADRANT

                            115 NM SOUTHWEST QUADRANT

                            125 NM NORTHWEST QUADRANT

   VECTOR TO 24 HR POSIT: 065 DEG/ 38 KTS

    ---

   24 HRS, VALID AT:

   051800Z --- 39.1N 140.7E

   MAX SUSTAINED WINDS - 045 KT, GUSTS 055 KT

   WIND RADII VALID OVER OPEN WATER ONLY

   EXTRATROPICAL

   VECTOR TO 36 HR POSIT: 070 DEG/ 46 KTS

    ---

   36 HRS, VALID AT:

   060600Z --- 42.0N 152.2E

   MAX SUSTAINED WINDS - 035 KT, GUSTS 045 KT

   WIND RADII VALID OVER OPEN WATER ONLY

   EXTRATROPICAL

    ---

REMARKS:

042100Z POSITION NEAR 33.4N 128.0E.

TYPHOON 21W (CHABA), LOCATED APPROXIMATELY 160 NM WEST-SOUTHWEST

OF SASEBO, JAPAN, HAS TRACKED NORTH-NORTHEASTWARD AT 15 KNOTS

OVER THE PAST SIX HOURS. MAXIMUM SIGNIFICANT WAVE HEIGHT AT

041800Z IS 30 FEET. NEXT WARNINGS AT 050300Z, 050900Z, 051500Z

AND 052100Z.//