WTPN32 PGTW 031500

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

SUBJ/TROPICAL CYCLONE WARNING//

RMKS/

1. SUPER TYPHOON 21W (CHABA) WARNING NR 023

   01 ACTIVE TROPICAL CYCLONE IN NORTHWESTPAC

   MAX SUSTAINED WINDS BASED ON ONE-MINUTE AVERAGE

   WIND RADII VALID OVER OPEN WATER ONLY

    ---

   WARNING POSITION:

   031200Z --- NEAR 25.9N 126.7E

     MOVEMENT PAST SIX HOURS - 345 DEGREES AT 09 KTS

     POSITION ACCURATE TO WITHIN 010 NM

     POSITION BASED ON EYE FIXED BY A COMBINATION OF

     SATELLITE AND RADAR

   PRESENT WIND DISTRIBUTION:

   MAX SUSTAINED WINDS - 145 KT, GUSTS 175 KT

   WIND RADII VALID OVER OPEN WATER ONLY

   RADIUS OF 064 KT WINDS - 025 NM NORTHEAST QUADRANT

                            020 NM SOUTHEAST QUADRANT

                            020 NM SOUTHWEST QUADRANT

                            025 NM NORTHWEST QUADRANT

   RADIUS OF 050 KT WINDS - 060 NM NORTHEAST QUADRANT

                            045 NM SOUTHEAST QUADRANT

                            035 NM SOUTHWEST QUADRANT

                            040 NM NORTHWEST QUADRANT

   RADIUS OF 034 KT WINDS - 105 NM NORTHEAST QUADRANT

                            075 NM SOUTHEAST QUADRANT

                            095 NM SOUTHWEST QUADRANT

                            070 NM NORTHWEST QUADRANT

   REPEAT POSIT: 25.9N 126.7E

    ---

   FORECASTS:

   12 HRS, VALID AT:

   040000Z --- 28.3N 126.3E

   MAX SUSTAINED WINDS - 135 KT, GUSTS 165 KT

   WIND RADII VALID OVER OPEN WATER ONLY

   RADIUS OF 064 KT WINDS - 030 NM NORTHEAST QUADRANT

                            025 NM SOUTHEAST QUADRANT

                            025 NM SOUTHWEST QUADRANT

                            030 NM NORTHWEST QUADRANT

   RADIUS OF 050 KT WINDS - 070 NM NORTHEAST QUADRANT

                            055 NM SOUTHEAST QUADRANT

                            040 NM SOUTHWEST QUADRANT

                            050 NM NORTHWEST QUADRANT

   RADIUS OF 034 KT WINDS - 110 NM NORTHEAST QUADRANT

                            085 NM SOUTHEAST QUADRANT

                            095 NM SOUTHWEST QUADRANT

                            080 NM NORTHWEST QUADRANT

   VECTOR TO 24 HR POSIT: 005 DEG/ 16 KTS

    ---

   24 HRS, VALID AT:

   041200Z --- 31.4N 126.6E

   MAX SUSTAINED WINDS - 120 KT, GUSTS 145 KT

   WIND RADII VALID OVER OPEN WATER ONLY

   RADIUS OF 064 KT WINDS - 030 NM NORTHEAST QUADRANT

                            025 NM SOUTHEAST QUADRANT

                            025 NM SOUTHWEST QUADRANT

                            025 NM NORTHWEST QUADRANT

   RADIUS OF 050 KT WINDS - 070 NM NORTHEAST QUADRANT

                            065 NM SOUTHEAST QUADRANT

                            050 NM SOUTHWEST QUADRANT

                            045 NM NORTHWEST QUADRANT

   RADIUS OF 034 KT WINDS - 130 NM NORTHEAST QUADRANT

                            105 NM SOUTHEAST QUADRANT

                            095 NM SOUTHWEST QUADRANT

                            100 NM NORTHWEST QUADRANT

   VECTOR TO 36 HR POSIT: 035 DEG/ 17 KTS

    ---

   36 HRS, VALID AT:

   050000Z --- 34.1N 129.0E

   MAX SUSTAINED WINDS - 100 KT, GUSTS 125 KT

   WIND RADII VALID OVER OPEN WATER ONLY

   BECOMING EXTRATROPICAL

   RADIUS OF 064 KT WINDS - 035 NM NORTHEAST QUADRANT

                            030 NM SOUTHEAST QUADRANT

                            030 NM SOUTHWEST QUADRANT

                            030 NM NORTHWEST QUADRANT

   RADIUS OF 050 KT WINDS - 065 NM NORTHEAST QUADRANT

                            060 NM SOUTHEAST QUADRANT

                            050 NM SOUTHWEST QUADRANT

                            060 NM NORTHWEST QUADRANT

   RADIUS OF 034 KT WINDS - 140 NM NORTHEAST QUADRANT

                            120 NM SOUTHEAST QUADRANT

                            105 NM SOUTHWEST QUADRANT

                            110 NM NORTHWEST QUADRANT

   VECTOR TO 48 HR POSIT: 060 DEG/ 30 KTS

    ---

   EXTENDED OUTLOOK:

   48 HRS, VALID AT:

   051200Z --- 36.8N 135.5E

   MAX SUSTAINED WINDS - 075 KT, GUSTS 090 KT

   WIND RADII VALID OVER OPEN WATER ONLY

   BECOMING EXTRATROPICAL

   RADIUS OF 064 KT WINDS - 020 NM NORTHEAST QUADRANT

                            015 NM SOUTHEAST QUADRANT

                            015 NM SOUTHWEST QUADRANT

                            015 NM NORTHWEST QUADRANT

   RADIUS OF 050 KT WINDS - 050 NM NORTHEAST QUADRANT

                            050 NM SOUTHEAST QUADRANT

                            045 NM SOUTHWEST QUADRANT

                            045 NM NORTHWEST QUADRANT

   RADIUS OF 034 KT WINDS - 150 NM NORTHEAST QUADRANT

                            135 NM SOUTHEAST QUADRANT

                            125 NM SOUTHWEST QUADRANT

                            105 NM NORTHWEST QUADRANT

   VECTOR TO 72 HR POSIT: 065 DEG/ 43 KTS

    ---

   72 HRS, VALID AT:

   061200Z --- 42.7N 156.8E

   MAX SUSTAINED WINDS - 025 KT, GUSTS 035 KT

   WIND RADII VALID OVER OPEN WATER ONLY

   EXTRATROPICAL

    ---

REMARKS:

031500Z POSITION NEAR 26.5N 126.6E.

SUPER TYPHOON 21W (CHABA), LOCATED APPROXIMATELY 69 NM WEST-

SOUTHWEST OF KADENA AB, OKINAWA, JAPAN HAS TRACKED

NORTH-NORTHWESTWARD AT 09 KNOTS OVER THE PAST SIX HOURS.

MAXIMUM SIGNIFICANT WAVE HEIGHT AT 031200Z IS 42 FEET. NEXT

WARNINGS AT 032100Z, 040300Z, 040900Z AND 041500Z.//