Subject: Indian-S: 01 Active Tropical Cyclone In Southern Hemisphere

From: SIU Weather Processor <[email-masked]>
Date: Sun, 8 Feb 1998 08:34:53 -0600

527
WTXS31 PGTW 081500
1. TROPICAL CYCLONE 20S WARNING NR 003
   01 ACTIVE TROPICAL CYCLONE IN SOUTHERN HEMISPHERE
   MAX SUSTAINED WINDS BASED ON ONE-MINUTE AVERAGE
    ---
   WARNING POSITION:
   081200Z1 --- 12.6S9 61.3E0
     MOVEMENT PAST SIX HOURS - 270 DEGREES AT 05 KTS
     POSITION ACCURATE TO WITHIN 060 NM
     POSITION BASED ON CENTER LOCATED BY SATELLITE
   PRESENT WIND DISTRIBUTION:
   MAX SUSTAINED WINDS - 040 KT, GUSTS 050 KT
   RADIUS OF 035 KT WINDS - 045 NM SOUTH SEMICIRCLE
                            040 NM ELSEWHERE
   REPEAT POSIT: 12.6S9 61.3E0
    ---
   FORECASTS:
   12 HRS, VALID AT:
   090000Z9 --- 12.6S9 60.3E9
   MAX SUSTAINED WINDS - 050 KT, GUSTS 065 KT
   RADIUS OF 035 KT WINDS - 060 NM SOUTH SEMICIRCLE
                            050 NM ELSEWHERE
   VECTOR TO 24 HR POSIT: 265 DEG/ 05 KTS
    ---
   24 HRS, VALID AT:
   091200Z2 --- 12.7S0 59.2E6
   MAX SUSTAINED WINDS - 060 KT, GUSTS 075 KT
   RADIUS OF 050 KT WINDS - 025 NM
   RADIUS OF 035 KT WINDS - 075 NM SOUTHEAST SEMICIRCLE
                            065 NM ELSEWHERE
   VECTOR TO 36 HR POSIT: 265 DEG/ 05 KTS
    ---
   36 HRS, VALID AT:
   100000Z1 --- 12.8S1 58.2E5
   MAX SUSTAINED WINDS - 070 KT, GUSTS 085 KT
   RADIUS OF 050 KT WINDS - 035 NM SOUTH SEMICIRCLE
                            030 NM ELSEWHERE
   RADIUS OF 035 KT WINDS - 085 NM SOUTH SEMICIRCLE
                            075 NM ELSEWHERE
   VECTOR TO 48 HR POSIT: 260 DEG/ 06 KTS
    ---
   EXTENDED OUTLOOK:
   48 HRS, VALID AT:
   101200Z4 --- 13.0S4 56.9E0
   MAX SUSTAINED WINDS - 080 KT, GUSTS 100 KT
   RADIUS OF 050 KT WINDS - 045 NM SOUTH SEMICIRCLE
                            040 NM ELSEWHERE
   RADIUS OF 035 KT WINDS - 090 NM SOUTH SEMICIRCLE
                            080 NM ELSEWHERE
   VECTOR TO 72 HR POSIT: 260 DEG/ 06 KTS
    ---
   72 HRS, VALID AT:
   111200Z5 --- 13.5S9 54.3E2
   MAX SUSTAINED WINDS - 090 KT, GUSTS 110 KT
   RADIUS OF 050 KT WINDS - 050 NM SOUTH SEMICIRCLE
                            045 NM ELSEWHERE
   RADIUS OF 035 KT WINDS - 100 NM SOUTH SEMICIRCLE
                            090 NM ELSEWHERE
    ---
REMARKS:
081500Z4 POSITION 12.6S9   61.0E7
TROPICAL CYCLONE 20S IS MOVING WESTWARD AT 5 KNOTS. THE SYSTEM
CONTINUES TO ORGANIZE AT ALL LEVELS. STEERING IS EXPECTED TO
REMAIN WESTWARD UNDER THE INFLUENCE OF GENERAL RIDGING LOCATED
TO THE SOUTH. THE SYSTEM IS FORECAST TO INTENSIFY AS IT
CONSOLIDATES THROUGHOUT THE FORECAST PERIOD. WARNING POSITION
AND INTENSITY ARE BASED ON ENHANCED VISIBLE AND INFRARED
SATELLITE IMAGERY. MAXIMUM SIGNIFICANT WAVE HEIGHT AT 081200Z
IS 13 FEET. NEXT WARNINGS AT 082100Z1 (DTG 081951Z4), 090300Z2
(DTG 090151Z6), 090900Z8 (DTG 090751Z2) AND 091500Z5 (DTG
091351Z9).//

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