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

From: SIU Weather Processor <[email-masked]>
Date: Sat, 5 Dec 1998 14:05:36 -0600

299
WTXS32 PGTW 052100 RELOCA TED
1. TROPICAL CYCLONE 06S WARNING NR 002
   02 ACTIVE TROPICAL CYCLONES IN SOUTHERN HEMISPHERE
   MAX SUSTAINED WINDS BASED ON ONE-MINUTE AVERAGE
    ---
   WARNING POSITION:
   051800Z4 --- NEAR 9.2S1 131.0E5
     MOVEMENT PAST SIX HOURS - 270 DEGREES AT 04 KTS
     POSITION ACCURATE TO WITHIN 060 NM
     POSITION BASED ON CENTER LOCATED BY SATELLITE
   PRESENT WIND DISTRIBUTION:
   MAX SUSTAINED WINDS - 025 KT, GUSTS 035 KT
   REPEAT POSIT: 9.2S1 131.0E5
    ---
   FORECASTS:
   12 HRS, VALID AT:
   060600Z2 --- 9.2S1 130.4E8
   MAX SUSTAINED WINDS - 030 KT, GUSTS 040 KT
   VECTOR TO 24 HR POSIT: 270 DEG/ 03 KTS
    ---
   24 HRS, VALID AT:
   061800Z5 --- 9.2S1 129.8E0
   MAX SUSTAINED WINDS - 035 KT, GUSTS 045 KT
   VECTOR TO 36 HR POSIT: 270 DEG/ 03 KTS
    ---
   36 HRS, VALID AT:
   070600Z3 --- 9.2S1 129.2E4
   MAX SUSTAINED WINDS - 040 KT, GUSTS 050 KT
   RADIUS OF 035 KT WINDS - 060 NM SOUTH SEMICIRCLE
                            050 NM ELSEWHERE
   VECTOR TO 48 HR POSIT: 260 DEG/ 03 KTS
    ---
   EXTENDED OUTLOOK:
   48 HRS, VALID AT:
   071800Z6 --- 9.3S2 128.5E6
   MAX SUSTAINED WINDS - 050 KT, GUSTS 065 KT
   RADIUS OF 035 KT WINDS - 075 NM SOUTH SEMICIRCLE
                            065 NM ELSEWHERE
    ---
REMARKS:
052100Z8 POSITION NEAR  9.2S1  130.8E2.
TC 06S HAS BEEN RELOCATED FURTHER EAST. TROPICAL CYCLONE 06S IS A
VERY BROAD CIRCULATION AREA WITH WIDESPREAD DEEP CONVECTION. THE
AREA CONTINUES ON A WESTWARD TRACK  AT 04 KNOTS OVER THE PAST 6
HOURS. THE WARNING POSITION AND INTENSITY (25 KTS) ARE
BASED ON  051730Z6 INFRARED SATELLITE IMAGERY ANALYSIS TECHNIQUES.
ANIMATED INFRARED SATELLITE IMAGERY SHOWS TC 06S HAS BECOME BETTER
ORGANIZED AND INCREASED IN AREAL EXTENT OVER THE PAST 12 HOURS. THIS
INCREASE IN AREAL EXTENT IS MAKING IT MORE DIFFICULT TO PINPOINT THE
CENTER OF THE LOW-LEVEL CIRCULATION. ANIMATED WATER VAPOR SATELLITE
IMAGERY AND UW-CIMSS 0501200Z8 WATER VAPOR WINDSHEAR PRODUCTS
INDICATE THE UPPER AIR ENVIRONMENT REMAINS FAVORABLE FOR FURTHER
DEVELOPMENT. TROPICAL CYCLONE 06S IS FORECAST TO CONTINUE TO TRACK
WESTWARD UNDER THE INFLUENCE OF THE SUBTROPICAL RIDGE LOCATED TO ITS
SOUTH. TC 06S SHOULD CONTINUE TO INTENSIFY SLOWLY OVER THE NEXT 48
HOURS AS THE SYSTEM CONTINUES TO ORGANIZE OVER THE WARM WATERS NORTH
OF AUSTRALIA. MAXIMUM SIGNIFICANT WAVE HEIGHT AT 051800Z4 IS 12
FEET. NEXT WARNINGS AT 060900Z5 (DTG 060753Z1) AND 062100Z9 (DTG
061953Z4).REFER TO TROPICAL CYCLONE  05S (BILLY) WARNINGS (WTXS31
PGTW) FOR SIX-HOURLY UPDATES.//

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