Subject: Indian-S: 1. Tropical Cyclone 28s (elaine) Warning Nr 008

From: SIU Weather Processor <[email-masked]>
Date: Fri, 19 Mar 1999 01:51:47 -0600

999
WTXS32 PGTW 190900
SUBJ:  TROPICAL CYCLONE WARNING
1. TROPICAL CYCLONE 28S (ELAINE) WARNING NR 008
   03 ACTIVE TROPICAL CYCLONES IN SOUTHERN HEMISPHERE
   MAX SUSTAINED WINDS BASED ON ONE-MINUTE AVERAGE
    ---
   WARNING POSITION:
   190600Z6 --- NEAR 24.3S9 111.6E9
     MOVEMENT PAST SIX HOURS - 165 DEGREES AT 13 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
   DISSIPATING AS A SIGNIFICANT TROPICAL CYCLONE OVER WATER
   RADIUS OF 035 KT WINDS - 070 NM SOUTHEAST SEMICIRCLE
                            055 NM ELSEWHERE
   REPEAT POSIT: 24.3S9 111.6E9
    ---
   FORECASTS:
   12 HRS, VALID AT:
   191800Z9 --- 26.5S3 111.4E7
   MAX SUSTAINED WINDS - 035 KT, GUSTS 045 KT
   DISSIPATING AS A SIGNIFICANT TROPICAL CYCLONE OVER WATER
   VECTOR TO 24 HR POSIT: 190 DEG/ 10 KTS
    ---
   24 HRS, VALID AT:
   200600Z8 --- 28.5S5 111.0E3
   MAX SUSTAINED WINDS - 030 KT, GUSTS 040 KT
   DISSIPATING AS A SIGNIFICANT TROPICAL CYCLONE OVER WATER
   VECTOR TO 36 HR POSIT: 210 DEG/ 11 KTS
    ---
   36 HRS, VALID AT:
   201800Z1 --- 30.4S7 109.8E8
   MAX SUSTAINED WINDS - 025 KT, GUSTS 035 KT
   DISSIPATED AS A SIGNIFICANT TROPICAL CYCLONE OVER WATER
    ---
REMARKS:
190900Z9 POSITION NEAR 24.9S5 111.6E9. TROPICAL CYCLONE 28S
(ELAINE) HAS TRACKED SOUTHWARD AT 14 KNOTS NORTHWEST OF
SHARK BAY, WESTERN AUSTRALIA, OVER THE PAST 06 HOURS.
THE WARNING POSITION IS BASED UPON 190530Z8 ANIMATED
INFRARED AND VISIBLE SATELLITE IMAGERY. THE WARNING
INTENSITY IS BASED UPON EXTRAPOLATION AND SATELLITE CURRENT
INTENSITY ANALYSIS. ANIMATED INFRARED SATELLITE IMAGERY
SHOWS TC 28S IS BEING SHEARED APART AND DISSIPATING RAPIDLY
AS IT PARALLELS THE WESTERN AUSTRALIA COAST. THE LOW LEVEL
CIRCULATION CENTER ASSOCIATED WITH TC 28S, HAVING BEEN
SHEARED AWAY FROM THE DEEP CONVECTION, IS TRACKING SOUTHWARD
WHILE THE CONVECTION IS BEING SHEARED OFF TO THE SOUTHEAST.
TC 28S IS FORECAST TO TRACK MORE WESTWARD THROUGH THE FORECAST
PERIOD AS THE LOW LEVEL CIRCULATION BEGINS TO BE STEERED IN
A LOWER LEVEL ENVIRONMENT. TROPICAL CYCLONE 28S (ELAINE)
SHOULD CONTINUE TO RAPIDLY DISSIPATE OVER WATER FOR THE NEXT
36 HOURS. MAXIMUM SIGNIFICANT WAVE HEIGHT AT 190600Z6 IS 16
FEET. NEXT WARNINGS AT 192100Z3 (DTG 191953Z8) AND 200900Z1
(DTG 200753Z7). REFER TO TROPICAL CYCLONE 29S (NONAME) WARNINGS
(WTXS33 PGTW) FOR TWELVE-HOURLY UPDATES. REFER TO TROPICAL
CYCLONE  30S (VANCE) WARNINGS (WTXS34 PGTW) FOR TWELVE-HOURLY
UPDATES.//

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