Subject: Indian-S: Technical Discussion (Automatic)

From: SIU Weather Processor <[email-masked]>
Date: Mon, 27 Jan 1997 02:51:49 -0600

435
WTXS33 PGTW 270900
IMMEDIATE DELIVERY REQ TO AMEMBASSY SUVA
1. TROPICAL CYCLONE 21S (ILETTA) WARNING NR 008
   03 ACTIVE TROPICAL CYCLONES IN SOUTHIO
   MAX SUSTAINED WINDS BASED ON ONE-MINUTE AVERAGE
    ---
   WARNING POSITION:
   270600Z5 --- 17.3S1 71.5E3
     MOVEMENT PAST SIX HOURS - 150 DEGREES AT 09 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 - 040 NM NORTHEAST SEMICIRCLE
                            030 NM ELSEWHERE
   RADIUS OF 035 KT WINDS - 090 NM NORTHEAST SEMICIRCLE
                            060 NM ELSEWHERE
   REPEAT POSIT: 17.3S1 71.5E3
    ---
   FORECASTS:
   12 HRS, VALID AT:
   271800Z8 --- 18.5S4 72.1E0
   MAX SUSTAINED WINDS - 050 KT, GUSTS 065 KT
   RADIUS OF 035 KT WINDS - 085 NM NORTHEAST SEMICIRCLE
                            055 NM ELSEWHERE
   VECTOR TO 24 HR POSIT: 165 DEG/ 06 KTS
    ---
   24 HRS, VALID AT:
   280600Z6 --- 19.6S6 72.4E3
   MAX SUSTAINED WINDS - 050 KT, GUSTS 065 KT
   RADIUS OF 035 KT WINDS - 075 NM EAST SEMICIRCLE
                            055 NM ELSEWHERE
   VECTOR TO 36 HR POSIT: 240 DEG/ 04 KTS
    ---
   36 HRS, VALID AT:
   281800Z9 --- 20.0S2 71.7E5
   MAX SUSTAINED WINDS - 045 KT, GUSTS 055 KT
   RADIUS OF 035 KT WINDS - 070 NM SOUTH SEMICIRCLE
                            055 NM ELSEWHERE
   VECTOR TO 48 HR POSIT: 265 DEG/ 05 KTS
    ---
   EXTENDED OUTLOOK:
   48 HRS, VALID AT:
   290600Z7 --- 20.1S3 70.7E4
   MAX SUSTAINED WINDS - 040 KT, GUSTS 050 KT
   RADIUS OF 035 KT WINDS - 070 NM SOUTH SEMICIRCLE
                            055 NM ELSEWHERE
    ---
REMARKS:
270900Z8 POSITION 17.6S4   71.6E4
TROPICAL CYCLONE 21S (ILETTA) IS MOVING SOUTH-
SOUTHEASTWARD AT 10 KNOTS. SYSTEM IS EXPECTED TO CONTINUE
TO MOVE SOUTHEASTWARD THROUGH THE NEXT 24 HOURS.
AFTERWARDS THE SYSTEM IS EXPECTED TO EXPERIENCE INCREASED
VERTICAL WIND SHEAR WHICH FAVORS A WESTWARD TRACK DUE TO
MID AND SHALLOW LEVEL STEERING FLOW. NEXT WARNINGS AT
272100Z2 (DTG 271957Z1) AND 280900Z9 (DTG 280757Z9).
MAXIMUM SIGNIFICANT WAVE HEIGHT AT 270600Z IS 19 FEET.
REFER TO TROPICAL CYCLONE  19S (PANCHO-HELINDA) WARNINGS
(WTXS31 PGTW) FOR TWELVE-HOURLY UPDATES. REFER TO
TROPICAL CYCLONE 20S (GRETELLE) WARNINGS (WTXS32 PGTW)
FOR TWELVE-HOURLY UPDATES.//

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