Subject: Indian-S: Immediate Delivery Req To Amembassy Port Moresby

From: SIU Weather Processor <[email-masked]>
Date: Tue, 17 Apr 2001 03:02:41 -0500

WTXS31 PGTW 170900
IMMEDIATE DELIVERY REQ TO AMEMBASSY PORT MORESBY
1. TROPICAL CYCLONE 20S (ALISTAIR) WARNING NR 003
   01 ACTIVE TROPICAL CYCLONE IN SOUTHERN HEMISPHERE
   MAX SUSTAINED WINDS BASED ON ONE-MINUTE AVERAGE
    ---
   WARNING POSITION:
   170600Z4 --- NEAR 10.6S7 130.4E8
     MOVEMENT PAST SIX HOURS - 250 DEGREES AT 12 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: 10.6S7 130.4E8
    ---
   FORECASTS:
   12 HRS, VALID AT:
   171800Z7 --- 11.7S9 128.3E4
   MAX SUSTAINED WINDS - 040 KT, GUSTS 050 KT
   RADIUS OF 035 KT WINDS - 050 NM SOUTH SEMICIRCLE
                            040 NM ELSEWHERE
   VECTOR TO 24 HR POSIT: 240 DEG/ 12 KTS
    ---
   24 HRS, VALID AT:
   180600Z5 --- 12.9S2 126.1E0
   MAX SUSTAINED WINDS - 045 KT, GUSTS 055 KT
   RADIUS OF 035 KT WINDS - 065 NM SOUTH SEMICIRCLE
                                   OVER WATER
                            055 NM ELSEWHERE
   VECTOR TO 36 HR POSIT: 250 DEG/ 12 KTS
    ---
   36 HRS, VALID AT:
   181800Z8 --- 13.7S1 123.8E4
   MAX SUSTAINED WINDS - 050 KT, GUSTS 065 KT
   RADIUS OF 035 KT WINDS - 085 NM SOUTH SEMICIRCLE
                            070 NM ELSEWHERE
   VECTOR TO 48 HR POSIT: 255 DEG/ 12 KTS
    ---
   EXTENDED OUTLOOK:
   48 HRS, VALID AT:
   190600Z6 --- 14.4S9 121.4E8
   MAX SUSTAINED WINDS - 050 KT, GUSTS 065 KT
   RADIUS OF 035 KT WINDS - 085 NM SOUTH SEMICIRCLE
                            070 NM ELSEWHERE
    ---
REMARKS:
170900Z7 POSITION NEAR 10.9S0 129.9E1.
TROPICAL CYCLONE (TC) 20S (ALISTAIR), LOCATED APPROXIMATELY 115 NM
NORTH-NORTHWEST OF DARWIN, AUSTRALIA, HAS TRACKED WEST-SOUTHWESTWARD
AT 12 KNOTS OVER THE PAST 6 HOURS. THE WARNING POSITION IS BASED ON
170530Z6 VISIBLE AND INFRARED SATELLITE IMAGERY. THE WARNING
INTENSITY IS BASED ON CURRENT INTENSITY ESTIMATES OF 30 KNOTS AND 45
KNOTS. SATELLITE ANIMATION DEPICTS PULSING CONVECTION OVER THE
WESTERN HALF OF A PARTIALLY EXPOSED LOW LEVEL CIRCULATION CENTER. TC
20S WILL TRACK WEST-SOUTHWESTWARD WITHIN THE LOW/MID LEVEL TROPICAL
EASTERLIES THROUGH THE PERIOD. THE UPPER LEVEL RIDGE CURRENTLY
SITUATED OVER NORTHERN AUSTRALIA SHOULD REMAIN QUASI-STATIONARY,
THEREFORE, SLOW DEVELOPMENT OF THE SYSTEM IS FORECAST AS LIGHT TO
MODERATE UPPER EASTERLIES INHIBIT SIGNIFICANT DEVELOPMENT. MAXIMUM
SIGNIFICANT WAVE HEIGHT AT 170600Z4 IS 12 FEET. NEXT WARNINGS AT
172100Z1 AND 180900Z8.//

+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
To unsubscribe from WX-TROPL send e-mail to [email-masked] with
"unsub wx-tropl" in the body of your message. For help with WX-TROPL
write to [email-masked] or see http://wxlist.centerone.com. For more
information on tropical weather products, see the NHC Homepage
at http://www.nhc.noaa.gov.