Subject: Indian-S: 1. Tropical Cyclone 32s (gwenda) Warning Nr 007

From: SIU Weather Processor <[email-masked]>
Date: Tue, 6 Apr 1999 20:50:39 -0500

999
WTXS32 PGTW 070300
SUBJ: TROPICAL CYCLONE WARNING
1. TROPICAL CYCLONE 32S (GWENDA) WARNING NR 007
   02 ACTIVE TROPICAL CYCLONES IN SOUTHERN HEMISPHERE
   MAX SUSTAINED WINDS BASED ON ONE-MINUTE AVERAGE
    ---
   WARNING POSITION:
   070000Z7 --- NEAR 17.4S2 116.8E6
     MOVEMENT PAST SIX HOURS - 160 DEGREES AT 06 KTS
     POSITION ACCURATE TO WITHIN 045 NM
     POSITION BASED ON CENTER LOCATED BY SATELLITE
   PRESENT WIND DISTRIBUTION:
   MAX SUSTAINED WINDS - 130 KT, GUSTS 160 KT
   RADIUS OF 100 KT WINDS - 020 NM
   RADIUS OF 050 KT WINDS - 050 NM EAST SEMICIRCLE
                            040 NM ELSEWHERE
   RADIUS OF 035 KT WINDS - 130 NM EAST SEMICIRCLE
                            115 NM ELSEWHERE
   REPEAT POSIT: 17.4S2 116.8E6
    ---
   FORECASTS:
   12 HRS, VALID AT:
   071200Z0 --- 18.5S4 116.8E6
   MAX SUSTAINED WINDS - 120 KT, GUSTS 145 KT
   RADIUS OF 100 KT WINDS - 025 NM
   RADIUS OF 050 KT WINDS - 050 NM EAST SEMICIRCLE
                            040 NM ELSEWHERE
   RADIUS OF 035 KT WINDS - 140 NM EAST SEMICIRCLE
                            120 NM ELSEWHERE OVER WATER
   VECTOR TO 24 HR POSIT: 180 DEG/ 06 KTS
    ---
   24 HRS, VALID AT:
   080000Z8 --- 19.8S8 116.8E6
   MAX SUSTAINED WINDS - 100 KT, GUSTS 125 KT
   RADIUS OF 050 KT WINDS - 050 NM EAST SEMICIRCLE
                                   OVER WATER
                            040 NM ELSEWHERE
   RADIUS OF 035 KT WINDS - 155 NM EAST SEMICIRCLE
                                   OVER WATER
                            140 NM ELSEWHERE OVER WATER
   VECTOR TO 36 HR POSIT: 175 DEG/ 08 KTS
    ---
   36 HRS, VALID AT:
   081200Z1 --- 21.3S6 117.0E9
   MAX SUSTAINED WINDS - 065 KT, GUSTS 080 KT
   RADIUS OF 050 KT WINDS - 050 NM EAST SEMICIRCLE
                                   OVER WATER
                            040 NM ELSEWHERE OVER WATER
   RADIUS OF 035 KT WINDS - 160 NM EAST SEMICIRCLE
                                   OVER WATER
                            140 NM ELSEWHERE OVER WATER
   VECTOR TO 48 HR POSIT: 165 DEG/ 08 KTS
    ---
   EXTENDED OUTLOOK:
   48 HRS, VALID AT:
   090000Z9 --- 22.9S3 117.4E3
   MAX SUSTAINED WINDS - 045 KT, GUSTS 055 KT
   DISSIPATING AS A SIGNIFICANT TROPICAL CYCLONE OVER LAND
   RADIUS OF 035 KT WINDS - 080 NM EAST SEMICIRCLE
                                   OVER WATER
                            065 NM ELSEWHERE OVER WATER
    ---
REMARKS:
070300Z0 POSITION NEAR 17.7S5 116.8E6.
TROPICAL CYCLONE (TC) 32S (GWENDA) HAS TRACKED SOUTH-SOUTHEASTWARD
OFF THE NORTHWEST COAST OF AUSTRALIA AT 06 KNOTS OVER THE PAST 06
HOURS. THE WARNING POSITION AND INTENSITY ARE BASED UPON 062330Z4
ANIMATED VISIBLE AND INFRARED SATELLITE IMAGERY WITH CURRENT
INTENSITY ESTIMATES OF 125 AND 140 KNOTS. SATELLITE IMAGERY INDICATES
THE VERTICAL WIND SHEAR CONTINUES TO INCREASE AND TC 32S IS BEGINNING
TO ELONGATE AS THE EYE FEATURE BECOMES LESS WELL DEFINED. TROPICAL
CYCLONE 32S HAS MOVED SOUTH OF THE 200 MB RIDGE AXIS AND MUCH OF THE
DEEP CONVECTION IS NOW DRAWING OFF TO THE SOUTHEAST. HENCE, TC 32S
HAS PROBABLY PEAKED IN INTENSITY AND IS FORECAST TO BEGIN TO WEAKEN
AS IT CONTINUES SOUTHWARD. MAXIMUM SIGNIFICANT WAVE HEIGHT AT
070000Z7 IS 25 FEET. NEXT WARNINGS AT 070900Z6 (DTG 070753Z2),
071500Z3 (DTG 071353Z9), 072100Z0 (DTG 071953Z5) AND 080300Z1
(DTG 080153Z7). REFER TO TROPICAL CYCLONE 31S (FREDERIC-EVRINA)
WARNINGS (WTXS31 PGTW) FOR THE FINAL WARNING OF THIS SYSTEM.//
BT
#0007

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