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Date:	Sun, 28 Dec 1997 02:11:54 -0600
Reply-To: [email-masked]
Sender: WX-TROPL Tropical Storm and Hurricane WX products <[email-masked]>
From:	SIU Weather Processor <[email-masked]>
Subject:      Indian-S: Corrected
To:	Multiple recipients of list WX-TROPL <[email-masked]>
Status: RO

840
WTXS32 PGTW 280300 COR
1. TROPICAL CYCLONE 09S (SELWYN) WARNING NR 003A
CORRECTED
02 ACTIVE TROPICAL CYCLONES IN SOUTHERN HEMISPHERE
MAX SUSTAINED WINDS BASED ON ONE-MINUTE AVERAGE
---
WARNING POSITION:

PAGE 02 RUEDMCA0403 UNCLAS
280000Z0 --- 15.5S1 109.0E0
MOVEMENT PAST SIX HOURS - 245 DEGREES AT 05 KTS
POSITION ACCURATE TO WITHIN 060 NM
POSITION BASED ON CENTER LOCATED BY SATELLITE
PRESENT WIND DISTRIBUTION:
MAX SUSTAINED WINDS - 060 KT, GUSTS 075 KT
RADIUS OF 050 KT WINDS - 020 NM
RADIUS OF 035 KT WINDS - 050 NM SOUTHEAST SEMICIRCLE
045 NM ELSEWHERE
REPEAT POSIT: 15.5S1 109.0E0
---
FORECASTS:
12 HRS, VALID AT:
281200Z3 --- 16.0S7 108.1E0
MAX SUSTAINED WINDS - 050 KT, GUSTS 065 KT
RADIUS OF 035 KT WINDS - 040 NM SOUTHEAST SEMICIRCLE
035 NM ELSEWHERE
VECTOR TO 24 HR POSIT: 240 DEG/ 05 KTS
---
24 HRS, VALID AT:

PAGE 03 RUEDMCA0403 UNCLAS
290000Z1 --- 16.5S2 107.2E0
MAX SUSTAINED WINDS - 045 KT, GUSTS 055 KT
RADIUS OF 035 KT WINDS - 040 NM SOUTHEAST SEMICIRCLE
035 NM ELSEWHERE
VECTOR TO 36 HR POSIT: 240 DEG/ 06 KTS
---
36 HRS, VALID AT:
291200Z4 --- 17.1S9 106.2E9
MAX SUSTAINED WINDS - 040 KT, GUSTS 050 KT
DISSIPATING AS A SIGNIFICANT TROPICAL CYCLONE OVER
WATER
RADIUS OF 035 KT WINDS - 035 NM SOUTHEAST SEMICIRCLE
025 NM ELSEWHERE
VECTOR TO 48 HR POSIT: 225 DEG/ 06 KTS
---
EXTENDED OUTLOOK:
48 HRS, VALID AT:
300000Z3 --- 17.9S7 105.3E9
MAX SUSTAINED WINDS - 035 KT, GUSTS 045 KT
DISSIPATING AS A SIGNIFICANT TROPICAL CYCLONE OVER

PAGE 04 RUEDMCA0403 UNCLAS
WATER
---
REMARKS:
280300Z3 POSITION 15.6S2  108.8E7
TROPICAL CYCLONE 09S (SELWYN) IS MOVING WEST-
SOUTHWESTWARD AT 5 KNOTS. WATER VAPOR IMAGERY INDICATES
THAT THE SYSTEM IS EXPERIENCING SIGNIFICANT COLD DRY AIR
ENTRAINMENT WHICH IS HINDERING CURRENT DEVELOPMENT.
DEPARTING FROM THE INTENSITY FORECAST ISSUED IN OUR LAST
WARNING, TC 09S (SELWYN) IS EXPECTED TO CONTINUE SLOWLY
WEST-SOUTHWESTWARD AND WEAKEN DUE TO THE ENTRAINMENT AND
UPPER-LEVEL VERTICAL WIND SHEAR. MAXIMUM SIGNIFICANT WAVE
HEIGHT AT 280000Z IS 15 FEET. NEXT WARNINGS AT 281500Z6
(DTG 281353Z2) AND 290300Z4 (DTG 290153Z0). REFER TO
TROPICAL CYCLONE 08S (SID) WARNINGS (WTPS31 PGTW) FOR
TWELVE-HOURLY UPDATES. JUSTIFICATION FOR COR: CORRECTED
SYSTEM'S DIRECTION OF MOVEMENT//
BT
#0403

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