Subject: Indian-S: Technical Discussion (Automatic)

From: SIU Weather Processor <[email-masked]>
Date: Thu, 30 Jan 1997 01:48:34 -0600

561
WTXS31 PGTW 300900
1. TROPICAL CYCLONE 19S (PANCHO-HELINDA) WARNING NR 022
   02 ACTIVE TROPICAL CYCLONES IN SOUTHIO
   MAX SUSTAINED WINDS BASED ON ONE-MINUTE AVERAGE
    ---
   WARNING POSITION:
   300600Z9 --- 14.0S5 91.9E9
     MOVEMENT PAST SIX HOURS - 240 DEGREES AT 08 KTS
     POSITION ACCURATE TO WITHIN 060 NM
     POSITION BASED ON CENTER LOCATED BY SATELLITE
   PRESENT WIND DISTRIBUTION:
   MAX SUSTAINED WINDS - 045 KT, GUSTS 055 KT
   RADIUS OF 035 KT WINDS - 090 NM SOUTHWEST SEMICIRCLE
                            070 NM ELSEWHERE
   REPEAT POSIT: 14.0S5 91.9E9
    ---
   FORECASTS:
   12 HRS, VALID AT:
   301800Z2 --- 14.6S1 90.6E5
   MAX SUSTAINED WINDS - 045 KT, GUSTS 055 KT
   RADIUS OF 035 KT WINDS - 090 NM SOUTHEAST SEMICIRCLE
                            070 NM ELSEWHERE
   VECTOR TO 24 HR POSIT: 245 DEG/ 06 KTS
    ---
   24 HRS, VALID AT:
   310600Z0 --- 15.1S7 89.5E2
   MAX SUSTAINED WINDS - 045 KT, GUSTS 055 KT
   RADIUS OF 035 KT WINDS - 090 NM SOUTHEAST SEMICIRCLE
                            070 NM ELSEWHERE
   VECTOR TO 36 HR POSIT: 260 DEG/ 05 KTS
    ---
   36 HRS, VALID AT:
   311800Z3 --- 15.3S9 88.5E1
   MAX SUSTAINED WINDS - 045 KT, GUSTS 055 KT
   RADIUS OF 035 KT WINDS - 090 NM SOUTHEAST SEMICIRCLE
                            070 NM ELSEWHERE
   VECTOR TO 48 HR POSIT: 265 DEG/ 04 KTS
    ---
   EXTENDED OUTLOOK:
   48 HRS, VALID AT:
   010600Z7 --- 15.4S0 87.7E2
   MAX SUSTAINED WINDS - 040 KT, GUSTS 050 KT
   RADIUS OF 035 KT WINDS - 085 NM SOUTH SEMICIRCLE
                            065 NM ELSEWHERE
    ---
REMARKS:
300900Z2 POSITION 14.2S7   91.6E6
TROPICAL CYCLONE 19S (PANCHO-HELINDA) IS MOVING WEST-
SOUTHWESTWARD AT 08 KNOTS. THE SYSTEM IS EXPECTED TO
CONTINUE SOUTHWESTWARD THROUGH THE FORECAST PERIOD=
HOWEVER, AFTER 24 HOURS, STEERING FLOW IS EXPECTED TO
WEAKEN AND THE SYSTEM SHOULD BEGIN TO SLOW. NEXT WARNINGS
AT 302100Z6 (DTG 301951Z9) AND 310900Z3 (DTG 310751Z7).
MAXIMUM SIGNIFICANT WAVE HEIGHT AT 300600Z IS 15 FEET.
REFER TO TROPICAL CYCLONE 20S (GRETELLE) WARNINGS (WTXS32
PGTW) FOR TWELVE-HOURLY UPDATES.//

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