Subject: Indian-S: 1. Tropical Cyclone 32s (gemma) Warning Nr 009a Amended And

From: SIU Weather Processor <[email-masked]>
Date: Sat, 11 Apr 1998 03:28:28 -0500

625
WTXS31 PGTW 110900 AMD
IMMEDIATE DELIVERY REQ TO AMEMBASSY PORT LOUIS
1. TROPICAL CYCLONE 32S (GEMMA) WARNING NR 009A AMENDED AND
RELOCATED
   01 ACTIVE TROPICAL CYCLONE IN SOUTHERN HEMISPHERE
   MAX SUSTAINED WINDS BASED ON ONE-MINUTE AVERAGE
    ---
   WARNING POSITION:
   110600Z8 --- 15.7S3 75.9E1
     MOVEMENT PAST SIX HOURS - 090 DEGREES AT 04 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
   RADIUS OF 050 KT WINDS - 030 NM NORTH SEMICIRCLE
                            025 NM ELSEWHERE
   RADIUS OF 035 KT WINDS - 060 NM NORTH SEMICIRCLE
                            055 NM ELSEWHERE
   REPEAT POSIT: 15.7S3 75.9E1
    ---
   FORECASTS:
   12 HRS, VALID AT:
   111800Z1 --- 15.8S4 76.4E7
   MAX SUSTAINED WINDS - 060 KT, GUSTS 075 KT
   RADIUS OF 050 KT WINDS - 025 NM EAST SEMICIRCLE
                            025 NM ELSEWHERE
   RADIUS OF 035 KT WINDS - 055 NM EAST SEMICIRCLE
                            055 NM ELSEWHERE
   VECTOR TO 24 HR POSIT: 240 DEG/ 05 KTS
    ---
   24 HRS, VALID AT:
   120600Z9 --- 16.3S0 75.4E6
   MAX SUSTAINED WINDS - 055 KT, GUSTS 070 KT
   RADIUS OF 050 KT WINDS - 025 NM EAST SEMICIRCLE
                            025 NM ELSEWHERE
   RADIUS OF 035 KT WINDS - 055 NM SOUTHEAST SEMICIRCLE
                            050 NM ELSEWHERE
   VECTOR TO 36 HR POSIT: 260 DEG/ 06 KTS
    ---
   36 HRS, VALID AT:
   121800Z2 --- 16.5S2 74.2E3
   MAX SUSTAINED WINDS - 050 KT, GUSTS 065 KT
   RADIUS OF 035 KT WINDS - 050 NM SOUTH SEMICIRCLE
                            055 NM ELSEWHERE
   VECTOR TO 48 HR POSIT: 270 DEG/ 06 KTS
    ---
   EXTENDED OUTLOOK:
   48 HRS, VALID AT:
   130600Z0 --- 16.5S2 72.9E8
   MAX SUSTAINED WINDS - 050 KT, GUSTS 065 KT
   RADIUS OF 035 KT WINDS - 055 NM SOUTH SEMICIRCLE
                            050 NM ELSEWHERE
    ---
REMARKS:
110900Z1 POSITION 15.7S3 76.0E3.
TROPICAL CYCLONE 32S (GEMMA) CONTINUES TO MOVE SLOWLY
EASTWARD.  JUSTIFICATION FOR AMENDMENT AND RELOCATION: LATEST
VISIBLE SATELLITE IMAGERY INDICATES THAT THE VERTICAL SHEAR
HAS SEPARATED THE UPPER-LEVEL CONVECTION APPROXIMATELY 70NM
SOUTHEAST OF THE LOW-LEVEL CIRCULATION CENTER.  MAXIMUM
SIGNIFICANT WAVE HEIGHT AT 110600Z IS 16 FEET.  NEXT
WARNINGS AT PREVIOUSLY SCHEDULED TIMES OF 111500Z8 (DTG
111351Z2) AND 120300Z6 (DTG 120151Z0).//

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