Subject: Indian-S: Technical Discussion (Automatic)

From: SIU Weather Processor <[email-masked]>
Date: Tue, 28 Jan 1997 07:14:15 -0600

233
WTXS32 PGTW 281500
IMMEDIATE DELIVERY REQ TO AMEMBASSY PORT LOUIS
1. TROPICAL CYCLONE 20S (GRETELLE) WARNING NR 020
   03 ACTIVE TROPICAL CYCLONES IN SOUTHIO
   MAX SUSTAINED WINDS BASED ON ONE-MINUTE AVERAGE
    ---
   WARNING POSITION:
   281200Z3 --- 26.1S9 36.0E9
     MOVEMENT PAST SIX HOURS - 270 DEGREES AT 03 KTS
     POSITION ACCURATE TO WITHIN 090 NM
     POSITION BASED ON CENTER LOCATED BY A COMBINATION OF
     SATELLITE AND EXTRAPOLATION
   PRESENT WIND DISTRIBUTION:
   MAX SUSTAINED WINDS - 050 KT, GUSTS 065 KT
   RADIUS OF 035 KT WINDS - 125 NM SOUTH SEMICIRCLE
                            085 NM ELSEWHERE
   REPEAT POSIT: 26.1S9 36.0E9
    ---
   FORECASTS:
   12 HRS, VALID AT:
   290000Z1 --- 26.1S9 35.7E5
   MAX SUSTAINED WINDS - 050 KT, GUSTS 065 KT
   RADIUS OF 035 KT WINDS - 135 NM SOUTH SEMICIRCLE
                            095 NM ELSEWHERE
   VECTOR TO 24 HR POSIT: 250 DEG/ 01 KTS
    ---
   24 HRS, VALID AT:
   291200Z4 --- 26.2S0 35.4E2
   MAX SUSTAINED WINDS - 055 KT, GUSTS 070 KT
   RADIUS OF 050 KT WINDS - 040 NM SOUTHEAST SEMICIRCLE
                            030 NM ELSEWHERE
   RADIUS OF 035 KT WINDS - 140 NM SOUTHEAST SEMICIRCLE
                            105 NM ELSEWHERE
   VECTOR TO 36 HR POSIT: 195 DEG/ 02 KTS
    ---
   36 HRS, VALID AT:
   300000Z3 --- 26.5S3 35.3E1
   MAX SUSTAINED WINDS - 055 KT, GUSTS 070 KT
   RADIUS OF 050 KT WINDS - 040 NM EAST SEMICIRCLE
                            030 NM ELSEWHERE
   RADIUS OF 035 KT WINDS - 140 NM EAST SEMICIRCLE
                            105 NM ELSEWHERE
   VECTOR TO 48 HR POSIT: 180 DEG/ 01 KTS
    ---
   EXTENDED OUTLOOK:
   48 HRS, VALID AT:
   301200Z6 --- 26.8S6 35.3E1
   MAX SUSTAINED WINDS - 050 KT, GUSTS 065 KT
   RADIUS OF 035 KT WINDS - 140 NM NORTHEAST SEMICIRCLE
                            105 NM ELSEWHERE
    ---
REMARKS:
281500Z6 POSITION 26.1S9   35.9E7
TROPICAL CYCLONE 20S (GRETELLE) IS DRIFTING SLOWLY
WESTWARD. OUR WARNING POSITION AND INTENSITY ARE BASED ON
EXTRAPOLATION OF SATELLITE IMAGERY ANALYSES PERFORMED BY
KGWC AND OTHER AGENCIES, THE MOST RECENT OF WHICH IS A
28/0830Z ANALYSIS. TC 20S IS EXPECTED TO REMAIN QUASI-
STATIONARY THROUGH THE NEXT 48 HOURS AND REMAIN AT
APPROXIMATELY THE SAME INTENSITY. NEXT WARNINGS AT
290300Z4 (DTG 290155Z2) AND 291500Z7 (DTG 291355Z5).
MAXIMUM SIGNIFICANT WAVE HEIGHT AT 281200Z3 IS 16 FEET.
REFER TO TROPICAL CYCLONE 19S (PANCHO/HELINDA) WARNINGS
(WTXS31 PGTW) FOR TWELVE-HOURLY UPDATES. REFER TO
TROPICAL CYCLONE 21S (ILETTA) WARNINGS (WTXS33 PGTW) FOR
TWELVE-HOURLY UPDATES.//

+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
To unsubscribe from WX-TROPL send e-mail to [email-masked] with
"unsub wx-tropl" in the body of your message.  For help with the
WX-TROPL or WX-TALK discussion groups write to [email-masked] or see
http://www.inlink.com/~landmb/intro.html.  For more information on
tropical weather products, see the NCEP Products Homepage at
http://www.nhc.noaa.gov/nhcprod.html.