Subject: Indian-S: 02 Active Tropical Cyclones In Southern Hemisphere

From: SIU Weather Processor <[email-masked]>
Date: Tue, 16 Mar 1999 14:10:32 -0600

999
WTXS32 PGTW 162100
1. TROPICAL CYCLONE 28S WARNING NR 001
   02 ACTIVE TROPICAL CYCLONES IN SOUTHERN HEMISPHERE
   MAX SUSTAINED WINDS BASED ON ONE-MINUTE AVERAGE
    ---
   WARNING POSITION:
   161800Z6 --- NEAR 14.9S4 114.1E7
     MOVEMENT PAST SIX HOURS - 250 DEGREES AT 13 KTS
     POSITION ACCURATE TO WITHIN 060 NM
     POSITION BASED ON CENTER LOCATED BY SATELLITE
   PRESENT WIND DISTRIBUTION:
   MAX SUSTAINED WINDS - 035 KT, GUSTS 045 KT
   REPEAT POSIT: 14.9S4 114.1E7
    ---
   FORECASTS:
   12 HRS, VALID AT:
   170600Z4 --- 16.0S7 112.0E4
   MAX SUSTAINED WINDS - 045 KT, GUSTS 055 KT
   RADIUS OF 035 KT WINDS - 040 NM NORTH SEMICIRCLE
                            050 NM ELSEWHERE
   VECTOR TO 24 HR POSIT: 245 DEG/ 12 KTS
    ---
   24 HRS, VALID AT:
   171800Z7 --- 17.0S8 109.8E8
   MAX SUSTAINED WINDS - 055 KT, GUSTS 070 KT
   RADIUS OF 050 KT WINDS - 025 NM NORTH SEMICIRCLE
                            030 NM ELSEWHERE
                            085 NM ELSEWHERE
   RADIUS OF 035 KT WINDS - 075 NM NORTH SEMICIRCLE
                            085 NM ELSEWHERE
   VECTOR TO 36 HR POSIT: 250 DEG/ 12 KTS
    ---
   36 HRS, VALID AT:
   180600Z5 --- 17.8S6 107.5E3
   MAX SUSTAINED WINDS - 065 KT, GUSTS 080 KT
   RADIUS OF 050 KT WINDS - 040 NM NORTH SEMICIRCLE
                            050 NM ELSEWHERE
   RADIUS OF 035 KT WINDS - 090 NM NORTH SEMICIRCLE
                            100 NM ELSEWHERE
   VECTOR TO 48 HR POSIT: 260 DEG/ 12 KTS
    ---
   EXTENDED OUTLOOK:
   48 HRS, VALID AT:
   181800Z8 --- 18.2S1 105.0E6
   MAX SUSTAINED WINDS - 075 KT, GUSTS 090 KT
   RADIUS OF 050 KT WINDS - 050 NM NORTH SEMICIRCLE
                            060 NM ELSEWHERE
   RADIUS OF 035 KT WINDS - 100 NM NORTH SEMICIRCLE
                            120 NM ELSEWHERE
    ---
REMARKS:
162100Z0 POSITION NEAR 15.2S8  113.6E1. TC 28S HAS FORMED
NORTHWEST OF AUSTRALIA AND IS MOVING WEST-SOUTHWESTWARD AT 13
KNOTS. THE WARNING POSITION AND INTENSITY ARE BASED ON 161730Z
SATELLITE IMAGERY.  TC 28S IS EXPECTED TO CONTINUE MOVING SOUTH OF
WEST FOR THE NEXT 24 HOURS, THEN GRADUALLY TURN MORE WESTWARD IN
RESPONSE TO THE SUBTROPICAL RIDGE WHICH IS FORECAST TO BUILD TO THE
CYCLONES SOUTH. THE SYSTEM IS IN AN ENVIRONMENT WITH LOW VERTICAL
WIND SHEAR, WHICH SHOULD ALLOW IT TO INTENSIFY AT A NORMAL RATE.
MAXIMUM SIGNIFICANT WAVE HEIGHT AT 161800Z IS 14 FEET. THIS WARNING
SUPERSEDES AND CANCELS NAVPACMETOCCEN 150251Z MAR 99 TROPICAL
CYCLONE FORMATION ALERT (WTXS21 PGTW 160300) NEXT WARNINGS AT
170900Z7 (DTG 170753Z3) AND 172100Z1 (DTG 171953Z6).

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