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WTXS32 PGTW 281500

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

SUBJ/TROPICAL CYCLONE 28S (DIANNE) WARNING NR 003//

RMKS/

1. TROPICAL CYCLONE 28S (DIANNE) WARNING NR 003

   02 ACTIVE TROPICAL CYCLONES IN SOUTHIO

   MAX SUSTAINED WINDS BASED ON ONE-MINUTE AVERAGE

   WIND RADII VALID OVER OPEN WATER ONLY

    ---

   WARNING POSITION:

   281200Z --- NEAR 15.6S 123.8E

     MOVEMENT PAST SIX HOURS - 175 DEGREES AT 08 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 - 040 KT, GUSTS 050 KT

   WIND RADII VALID OVER OPEN WATER ONLY

   RADIUS OF 034 KT WINDS - 065 NM NORTHEAST QUADRANT

                            040 NM SOUTHEAST QUADRANT

                            060 NM SOUTHWEST QUADRANT

                            070 NM NORTHWEST QUADRANT

   REPEAT POSIT: 15.6S 123.8E

    ---

   FORECASTS:

   12 HRS, VALID AT:

   290000Z --- 17.0S 123.9E

   MAX SUSTAINED WINDS - 040 KT, GUSTS 050 KT

   WIND RADII VALID OVER OPEN WATER ONLY

   DISSIPATING AS A SIGNIFICANT TROPICAL CYCLONE OVER LAND

   RADIUS OF 034 KT WINDS - 050 NM NORTHEAST QUADRANT

                            040 NM SOUTHEAST QUADRANT

                            060 NM SOUTHWEST QUADRANT

                            090 NM NORTHWEST QUADRANT

   VECTOR TO 24 HR POSIT: 175 DEG/ 08 KTS

    ---

   24 HRS, VALID AT:

   291200Z --- 18.6S 124.0E

   MAX SUSTAINED WINDS - 030 KT, GUSTS 040 KT

   WIND RADII VALID OVER OPEN WATER ONLY

   DISSIPATED AS A SIGNIFICANT TROPICAL CYCLONE OVER LAND

   VECTOR TO 36 HR POSIT: 175 DEG/ 08 KTS

    ---

   36 HRS, VALID AT:

   300000Z --- 20.1S 124.2E

   MAX SUSTAINED WINDS - 025 KT, GUSTS 035 KT

   WIND RADII VALID OVER OPEN WATER ONLY

   DISSIPATED AS A SIGNIFICANT TROPICAL CYCLONE OVER LAND

    ---

REMARKS:

281500Z POSITION NEAR 15.9S 123.8E.

28MAR25. TROPICAL CYCLONE 28S (DIANNE), LOCATED APPROXIMATELY 166

NM NORTHEAST OF BROOME, AUSTRALIA, HAS TRACKED SOUTHWARD AT 08

KNOTS OVER THE PAST SIX HOURS.

MINIMUM CENTRAL PRESSURE AT 281200Z IS 992 MB. MAXIMUM

SIGNIFICANT WAVE HEIGHT AT 281200Z IS 16 FEET. NEXT WARNINGS AT

282100Z, 290300Z, 290900Z AND 291500Z.

REFER TO TROPICAL CYCLONE 27S (COURTNEY) WARNINGS (WTXS31 PGTW)

FOR TWELVE-HOURLY UPDATES.//

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