Subject: Indian-S: 1. Tropical Cyclone 18s Warning Nr 013

From: SIU Weather Processor <[email-masked]>
Date: Sun, 7 Feb 1999 15:51:20 -0600

195
WTXS31 PGTW 072100
SUBJ:  TROPICAL CYCLONE WARNING
1. TROPICAL CYCLONE 18S WARNING NR 013
   01 ACTIVE TROPICAL CYCLONE IN STUTHERN HEMISPHERE
   MAX SUSTAINED WINDS BASED ON ONE-MINUTE AVERAGE
   WARNING POSITION:
   071800Z6 --- NEAR 19.1S1 108.3E2
     MOVEMENT PAST SIX HOURS - 235 DEGREES AT 03 KTS
     POSITION ACCURATE TO WITHINGPYP NM
     POSITION BASD ON CENTER LOCATED BY SATELLITE
   PRESENT WIND DISTRIBUTION:
   MAX SUSTAINED WINDS - 035 KT, GUSTS 045 KT
   REPEAT POSIT: 19.1S1 108.3E2
   FORECASTS:
  #12 HRS, VALID AT:
   080600Z4 --- 19.2S2 108.0E9
   MAX SUSTAINED WINDS - 035 KT, GUSTS 045 KT
   DISSIPATING AS A SIGNIFICANT TROPICAL CYCLONE OVER WAER
   VECTOR TO 24 HR POSIT: 250 DEG/ 02 KTS
   24 HRS, VALID AT:
   081800Z7 --- 19.3S3 107.7E5
   MAX SUSTAINED WINDS - 035 KT, GUSTS 045 KT
   DISSIPATING AS A SIGNIFICANT TROPICAL CYCLONE OVER WATER
   VECTOR TO 36 HR POSIT: 250 DEG/ 02 KTS
   36 HRS, VALID AT:
   090600Z5 --- 19.4S4 107.4E2
   MAX SUSTAINED WINDS - 030 KT, GUSTS 040 KT
   DISSIPATED AS A SIGNIFICANT TROPICAL CYCLONE OVER WATER
REMARKS:
072100Z0 POSITION NEAR 19.1S1 108.2E1.
TROPICAL CYCLONE 18S HAS DRIFTED SOUTHWESTWARD OVER THE PAST
6 HOURS. THE WARNING POSITION IS BASED ON A COMBINATION OF 071+8
ENHANCED INFRARED IMAGERY AND A MICROWAVE IMAGERY PASS (071146Z9).
THE WARNING INTENSITY IS BASED ON EXTRAPOLATION FROM THE PREVIOUS
WARNING AND EARLIER ESTIMATES OF LOW-LEVEL CLOUD DRIFT WIND SPEEDS.

TC 18S REMAINS WITHIN THE WEAK STEERING FLOW OF THE BROADER MONSOON

TROUGH AND THE SUBTROPICAL RIDGE TO THE SOUTHEAST. TC 18S IS
FORECAST TO CONTINUE DRIFTING SOUTHWESTWARD THROUGH 24 HOURS.
AFTERWARDS, TC18S IS EXPECTED TO TURN MORE WETWARD AS THE
UBTROPICAL RIDGE TO THE SOUTHEAST BUILDS WESTWARD UNDER THE
O
SYSTEM.;:9,58,73$ -#3-4 -,$ :99)34 )92-LEVEL ENTRAINMENT ISS
EXPECTED TO INHIBIT FURTHER DEVELOPMENT OF THE SYSTEM. TC 18S IS
FORECAST TO DISSIPATE OVER WATER BY THE 36 HOUR FORECAST POSITION.
MAXIMUM SIGNIFICANT WAVE HEIGHT AT 071800Z6)IS 14 FAET. REFER TO
WWIO31 PGFW FOR ADDITIONAL SEALHEIGHT INFORMATION. NEXT WARNINGS AT

080300Z1 (DTG 080155Z9), 080900Z7 (DTG 080755Z5), 881500Z4 (DTG
081355Z2) AND 082100Z1 (DTG 081955Z8).//

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