Subject: Indian-S: 01 Active Tropical Cyclones In South Indian Ocean

From: SIU Weather Processor <[email-masked]>
Date: Sun, 21 Mar 1999 14:48:43 -0600

999
WTXS34 PGTW 212100
1. TROPICAL CYCLONE 30S (VANCE) WARNING NR 013
   01 ACTIVE TROPICAL CYCLONES IN SOUTH INDIAN OCEAN
   MAX SUSTAINED WINDS BASED ON ONE-MINUTE AVERAGE
    ---
   WARNING POSITION:
   211800Z2 --- NEAR 20.2S4 114.4E0
     MOVEMENT PAST SIX HOURS - 190 DEGREES AT 09 KTS
     POSITION ACCURATE TO WITHIN 030 NM
     POSITION BASED ON EYE FIXED BY SATELLITE
   PRESENT WIND DISTRIBUTION:
   MAX SUSTAINED WINDS - 120 KT, GUSTS 145 KT
   RADIUS OF 100 KT WINDS - 020 NM EAST SEMICIRCLE
                            015 NM ELSEWHERE
   RADIUS OF 050 KT WINDS - 075 NM SOUTHEAST SEMICIRCLE
                            065 NM ELSEWHERE
   RADIUS OF 035 KT WINDS - 160 NM SOUTHEAST SEMICIRCLE
                                   OVER WATER
                            150 NM ELSEWHERE
   REPEAT POSIT: 20.2S4 114.4E0
    ---
   FORECASTS:
   12 HRS, VALID AT:
   220600Z0 --- 22.0S4 114.1E7
   MAX SUSTAINED WINDS - 110 KT, GUSTS 135 KT
   RADIUS OF 100 KT WINDS - 020 NM EAST SEMICIRCLE
                                   OVER WATER
                            015 NM ELSEWHERE OVER WATER
   RADIUS OF 050 KT WINDS - 070 NM EAST SEMICIRCLE
                                   OVER WATER
                            060 NM ELSEWHERE OVER WATER
   RADIUS OF 035 KT WINDS - 160 NM EAST SEMICIRCLE
                                   OVER WATER
                            150 NM ELSEWHERE OVER WATER
   VECTOR TO 24 HR POSIT: 170 DEG/ 13 KTS
    ---
   24 HRS, VALID AT:
   221800Z3 --- 24.5S1 114.7E3
   MAX SUSTAINED WINDS - 080 KT, GUSTS 100 KT
   DISSIPATING AS A SIGNIFICANT TROPICAL CYCLONE OVER LAND
   RADIUS OF 050 KT WINDS - 040 NM EAST SEMICIRCLE
                                   OVER WATER
                            030 NM ELSEWHERE OVER WATER
   RADIUS OF 035 KT WINDS - 110 NM EAST SEMICIRCLE
                                   OVER WATER
                            090 NM ELSEWHERE OVER WATER
   VECTOR TO 36 HR POSIT: 155 DEG/ 16 KTS
    ---
   36 HRS, VALID AT:
   230600Z1 --- 27.4S3 116.3E1
   MAX SUSTAINED WINDS - 030 KT, GUSTS 040 KT
   DISSIPATED AS A SIGNIFICANT TROPICAL CYCLONE OVER LAND
    ---
REMARKS:
212100Z6 POSITION NEAR 20.6S8 114.3E9.
TROPICAL CYCLONE 30S (VANCE) IS MOVING SOUTHWARD AT 9 KNOTS. THE
WARNING POSITION AND INTENSITY ARE BASED ON 211730Z4 INFRARED AND
MICROWAVE SATELLITE IMAGERY.  THE 35 KNOT WIND RADIUS HAS BEEN
VERIFIED BY SYNOPTIC REPORTS FROM THE AUSTRALIAN COAST. FORECAST
REASONING REMAINS THE SAME.  TC 30S WILL CONTINUE SOUTHWARD AND
DISSIPATE OVER LAND WITHIN THE NEXT 36 HOURS. MAXIMUM SIGNIFICANT
WAVE HEIGHT AT 211800Z2 IS 28 FEET. NEXT WARNINGS AT 220300Z7 (DTG
220157Z7), 220900Z3 (DTG 220757Z3), 221500Z0 (DTG 221357Z0) AND
222100Z7 (DTG 221957Z6). REFER TO TROPICAL CYCLONE  29S (NONAME)
WARNINGS (WTXS33 PGTW)FOR SIX-HOURLY UPDATES.//
BT
#0001

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