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WTXS31 PGTW 312100

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

SUBJ/TROPICAL CYCLONE 27S (COURTNEY) WARNING NR 019//

RMKS/

1. TROPICAL CYCLONE 27S (COURTNEY) WARNING NR 019

   01 ACTIVE TROPICAL CYCLONE IN SOUTHIO

   MAX SUSTAINED WINDS BASED ON ONE-MINUTE AVERAGE

   WIND RADII VALID OVER OPEN WATER ONLY

    ---

   WARNING POSITION:

   311800Z --- NEAR 24.8S 88.8E

     MOVEMENT PAST SIX HOURS - 180 DEGREES AT 02 KTS

     POSITION ACCURATE TO WITHIN 020 NM

     POSITION BASED ON CENTER LOCATED BY SATELLITE

   PRESENT WIND DISTRIBUTION:

   MAX SUSTAINED WINDS - 055 KT, GUSTS 070 KT

   WIND RADII VALID OVER OPEN WATER ONLY

   BECOMING SUBTROPICAL

   RADIUS OF 050 KT WINDS - 050 NM NORTHEAST QUADRANT

                            070 NM SOUTHEAST QUADRANT

                            040 NM SOUTHWEST QUADRANT

                            030 NM NORTHWEST QUADRANT

   RADIUS OF 034 KT WINDS - 075 NM NORTHEAST QUADRANT

                            145 NM SOUTHEAST QUADRANT

                            120 NM SOUTHWEST QUADRANT

                            060 NM NORTHWEST QUADRANT

   REPEAT POSIT: 24.8S 88.8E

    ---

   FORECASTS:

   12 HRS, VALID AT:

   010600Z --- 25.5S 88.6E

   MAX SUSTAINED WINDS - 045 KT, GUSTS 055 KT

   WIND RADII VALID OVER OPEN WATER ONLY

   BECOMING SUBTROPICAL

   RADIUS OF 034 KT WINDS - 040 NM NORTHEAST QUADRANT

                            140 NM SOUTHEAST QUADRANT

                            100 NM SOUTHWEST QUADRANT

                            040 NM NORTHWEST QUADRANT

   VECTOR TO 24 HR POSIT: 240 DEG/ 03 KTS

    ---

   24 HRS, VALID AT:

   011800Z --- 25.8S 88.0E

   MAX SUSTAINED WINDS - 040 KT, GUSTS 050 KT

   WIND RADII VALID OVER OPEN WATER ONLY

   SUBTROPICAL

   RADIUS OF 034 KT WINDS - 020 NM NORTHEAST QUADRANT

                            110 NM SOUTHEAST QUADRANT

                            070 NM SOUTHWEST QUADRANT

                            020 NM NORTHWEST QUADRANT

    ---

REMARKS:

312100Z POSITION NEAR 25.0S 88.7E.

31MAR25. TROPICAL CYCLONE 27S (COURTNEY), LOCATED APPROXIMATELY

885 NM SOUTH-SOUTHWEST OF THE COCOS ISLANDS, HAS TRACKED

SOUTHWARD AT 02 KNOTS OVER THE PAST SIX HOURS.

MINIMUM CENTRAL PRESSURE AT 311800Z IS 986 MB. MAXIMUM

SIGNIFICANT WAVE HEIGHT AT 311800Z IS 21 FEET. NEXT WARNINGS AT

010900Z AND 012100Z.

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