****0000003719****
WTXS31 PGTW 310900

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

SUBJ/TROPICAL CYCLONE 27S (COURTNEY) WARNING NR 018//

RMKS/

1. TROPICAL CYCLONE 27S (COURTNEY) WARNING NR 018

   01 ACTIVE TROPICAL CYCLONE IN SOUTHIO

   MAX SUSTAINED WINDS BASED ON ONE-MINUTE AVERAGE

   WIND RADII VALID OVER OPEN WATER ONLY

    ---

   WARNING POSITION:

   310600Z --- NEAR 24.0S 88.5E

     MOVEMENT PAST SIX HOURS - 160 DEGREES AT 10 KTS

     POSITION ACCURATE TO WITHIN 060 NM

     POSITION BASED ON CENTER LOCATED BY SATELLITE

   PRESENT WIND DISTRIBUTION:

   MAX SUSTAINED WINDS - 065 KT, GUSTS 080 KT

   WIND RADII VALID OVER OPEN WATER ONLY

   RADIUS OF 064 KT WINDS - 035 NM NORTHEAST QUADRANT

                            040 NM SOUTHEAST QUADRANT

                            040 NM SOUTHWEST QUADRANT

                            025 NM NORTHWEST QUADRANT

   RADIUS OF 050 KT WINDS - 055 NM NORTHEAST QUADRANT

                            070 NM SOUTHEAST QUADRANT

                            055 NM SOUTHWEST QUADRANT

                            035 NM NORTHWEST QUADRANT

   RADIUS OF 034 KT WINDS - 110 NM NORTHEAST QUADRANT

                            140 NM SOUTHEAST QUADRANT

                            110 NM SOUTHWEST QUADRANT

                            060 NM NORTHWEST QUADRANT

   REPEAT POSIT: 24.0S 88.5E

    ---

   FORECASTS:

   12 HRS, VALID AT:

   311800Z --- 25.0S 88.8E

   MAX SUSTAINED WINDS - 055 KT, GUSTS 070 KT

   WIND RADII VALID OVER OPEN WATER ONLY

   RADIUS OF 050 KT WINDS - 030 NM NORTHEAST QUADRANT

                            040 NM SOUTHEAST QUADRANT

                            030 NM SOUTHWEST QUADRANT

                            020 NM NORTHWEST QUADRANT

   RADIUS OF 034 KT WINDS - 100 NM NORTHEAST QUADRANT

                            130 NM SOUTHEAST QUADRANT

                            110 NM SOUTHWEST QUADRANT

                            060 NM NORTHWEST QUADRANT

   VECTOR TO 24 HR POSIT: 185 DEG/ 04 KTS

    ---

   24 HRS, VALID AT:

   010600Z --- 25.8S 88.7E

   MAX SUSTAINED WINDS - 045 KT, GUSTS 055 KT

   WIND RADII VALID OVER OPEN WATER ONLY

   RADIUS OF 034 KT WINDS - 040 NM NORTHEAST QUADRANT

                            130 NM SOUTHEAST QUADRANT

                            100 NM SOUTHWEST QUADRANT

                            050 NM NORTHWEST QUADRANT

   VECTOR TO 36 HR POSIT: 235 DEG/ 03 KTS

    ---

   36 HRS, VALID AT:

   011800Z --- 26.1S 88.2E

   MAX SUSTAINED WINDS - 040 KT, GUSTS 050 KT

   WIND RADII VALID OVER OPEN WATER ONLY

   BECOMING SUBTROPICAL

   RADIUS OF 034 KT WINDS - 000 NM NORTHEAST QUADRANT

                            090 NM SOUTHEAST QUADRANT

                            060 NM SOUTHWEST QUADRANT

                            030 NM NORTHWEST QUADRANT

   VECTOR TO 48 HR POSIT: 270 DEG/ 05 KTS

    ---

   EXTENDED OUTLOOK:

   48 HRS, VALID AT:

   020600Z --- 26.1S 87.1E

   MAX SUSTAINED WINDS - 035 KT, GUSTS 045 KT

   WIND RADII VALID OVER OPEN WATER ONLY

   SUBTROPICAL

   RADIUS OF 034 KT WINDS - 000 NM NORTHEAST QUADRANT

                            080 NM SOUTHEAST QUADRANT

                            040 NM SOUTHWEST QUADRANT

                            000 NM NORTHWEST QUADRANT

    ---

REMARKS:

310900Z POSITION NEAR 24.3S 88.6E.

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

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

SOUTHEASTWARD AT 10 KNOTS OVER THE PAST SIX HOURS.

MINIMUM CENTRAL PRESSURE AT 310600Z IS 982 MB. MAXIMUM

SIGNIFICANT WAVE HEIGHT AT 310600Z IS 30 FEET.

NEXT WARNINGS AT 312100Z AND 010900Z.//

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