Subject: Indian-S: 01 Active Tropical Cyclone In Southern Hemisphere

From: SIU Weather Processor <[email-masked]>
Date: Tue, 27 Jan 1998 21:20:36 -0600

793
WTXS31 PGTW 280300
1. TROPICAL CYCLONE 15S (TIFFANY) WARNING NR 012
   01 ACTIVE TROPICAL CYCLONE IN SOUTHERN HEMISPHERE
   MAX SUSTAINED WINDS BASED ON ONE-MINUTE AVERAGE
    ---
   WARNING POSITION:
   280000Z0 --- 19.4S4 114.1E7
     MOVEMENT PAST SIX HOURS - 255 DEGREES AT 08 KTS

PAGE 02 RUHPSGG6991 UNCLAS
     POSITION ACCURATE TO WITHIN 045 NM
     POSITION BASED ON CENTER LOCATED BY SATELLITE
   PRESENT WIND DISTRIBUTION:
   MAX SUSTAINED WINDS - 110 KT, GUSTS 135 KT
   RADIUS OF 100 KT WINDS - 010 NM
   RADIUS OF 050 KT WINDS - 055 NM SOUTH SEMICIRCLE
                            040 NM ELSEWHERE
   RADIUS OF 035 KT WINDS - 100 NM SOUTH SEMICIRCLE
                            085 NM ELSEWHERE
   REPEAT POSIT: 19.4S4 114.1E7
    ---
   FORECASTS:
   12 HRS, VALID AT:
   281200Z3 --- 19.6S6 112.5E9
   MAX SUSTAINED WINDS - 105 KT, GUSTS 130 KT
   RADIUS OF 100 KT WINDS - 005 NM
   RADIUS OF 050 KT WINDS - 050 NM SOUTH SEMICIRCLE
                            040 NM ELSEWHERE
   RADIUS OF 035 KT WINDS - 095 NM SOUTH SEMICIRCLE
                            080 NM ELSEWHERE

PAGE 03 RUHPSGG6991 UNCLAS
   VECTOR TO 24 HR POSIT: 260 DEG/ 07 KTS
    ---
   24 HRS, VALID AT:
   290000Z1 --- 19.8S8 111.0E3
   MAX SUSTAINED WINDS - 100 KT, GUSTS 125 KT
   RADIUS OF 050 KT WINDS - 045 NM SOUTH SEMICIRCLE
                            035 NM ELSEWHERE
   RADIUS OF 035 KT WINDS - 090 NM SOUTH SEMICIRCLE
                            075 NM ELSEWHERE
   VECTOR TO 36 HR POSIT: 265 DEG/ 08 KTS
    ---
   36 HRS, VALID AT:
   291200Z4 --- 19.9S9 109.4E4
   MAX SUSTAINED WINDS - 090 KT, GUSTS 110 KT
   RADIUS OF 050 KT WINDS - 040 NM SOUTH SEMICIRCLE
                            035 NM ELSEWHERE
   RADIUS OF 035 KT WINDS - 085 NM SOUTH SEMICIRCLE
                            070 NM ELSEWHERE
   VECTOR TO 48 HR POSIT: 265 DEG/ 08 KTS
    ---

PAGE 04 RUHPSGG6991 UNCLAS
   EXTENDED OUTLOOK:
   48 HRS, VALID AT:
   300000Z3 --- 20.0S2 107.8E6
   MAX SUSTAINED WINDS - 080 KT, GUSTS 100 KT
   RADIUS OF 050 KT WINDS - 035 NM SOUTH SEMICIRCLE
                            030 NM ELSEWHERE
   RADIUS OF 035 KT WINDS - 080 NM SOUTH SEMICIRCLE
                            065 NM ELSEWHERE
   VECTOR TO 72 HR POSIT: 270 DEG/ 07 KTS
    ---
   72 HRS, VALID AT:
   310000Z4 --- 20.0S2 104.7E2
   MAX SUSTAINED WINDS - 065 KT, GUSTS 080 KT
   RADIUS OF 050 KT WINDS - 030 NM SOUTH SEMICIRCLE
                            025 NM ELSEWHERE
   RADIUS OF 035 KT WINDS - 065 NM SOUTH SEMICIRCLE
                            055 NM ELSEWHERE
    ---
REMARKS:
280300Z3 POSITION 19.5S5  113.7E2

PAGE 05 RUHPSGG6991 UNCLAS
TROPICAL CYCLONE 15S (TIFFANY) IS MOVING TOWARD THE WEST-
SOUTHWEST AT 08 KNOTS.  ANIMATED INFRARED IMAGERY INDICATES
THAT THE EYE HAS BECOME COVERED BY CIRRUS OVERCAST, HOWEVER
272142Z8 MICROWAVE IMAGER DATA INDICATES A WELL-FORMED EYE.
THE WARNING POSITION AND INTENSITY ARE BASED ON 272330Z7
INFRARED SATELLITE IMAGERY.  THIS SYSTEM HAS WEAKENED SLIGHTLY
OVER THE PAST 06 HOURS AND THE CONVECTIVE CLOUD MASS HAS BECOME
SLIGHTLY ELONGATED.  TROPICAL CYCLONE 15S (TIFFANY) IS FORECAST
TO CONTINUE MOVING IN A GENERALLY WESTWARD DIRECTION AND SLOWLY
WEAKEN THROUGHOUT THE FORECAST PERIOD UNDER THE STEERING
INFLUENCE OF THE SUBTROPICAL RIDGE TO ITS SOUTH.  MAXIMUM
SIGNIFICANT WAVE HEIGHT AT 280000Z0 IS 22 FEET.  NEXT WARNINGS
AT 280900Z9 (DTG 280751Z3), 281500Z6 (DTG 281351Z0), 282100Z3
(DTG 281951Z6) AND 290300Z4 (DTG 290151Z8).//
BT
#6991

+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
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.