Subject: Indian-N: 01 Active Tropical Cyclone In Northio

From: SIU Weather Processor <[email-masked]>
Date: Sun, 13 Dec 1998 02:56:32 -0600

247
WTIO31 PGTW 130900
1. TROPICAL CYCLONE 08A WARNING NR 002
   01 ACTIVE TROPICAL CYCLONE IN NORTHIO
   MAX SUSTAINED WINDS BASED ON ONE-MINUTE AVERAGE
   WARNING POSITION:
   130600Z0 --- NEAR 10.9N0 68.4E8
     MOVEMENT PAST SIX HOURS - 325 DEGREES AT 04 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
   RADIUS OF 035 KT WINDS - 165 NM NORTH SEMICIRCLE
                            080 NM ELSEWHERE
   REPEAT POSIT: 10.9N0 68.4E8
   FORECASTS:
   12 HRS, VALID AT:
   131800Z3 --- 11.6N8 67.7E0
   MAX SUSTAINED WINDS - 055 KT, GUSTS 070 KT
   RADIUS OF 050 KT WINDS - 030 NM
   RADIUS OF 035 KT WINDS -8100,. ,945# -3.8:84:)3
                            080 NM ELSEWHERE
   VECTOR TO 24 HR POSIT: 310 DEG/ 05 KTS
   24 HRS, VALID AT:
   140600Z1 --- 12.2N5 66.9E1
   MAX SUSTAINED WINDS - 065 KT, GUSTS 080 KT
   RADIUS OF 050 KT WINDS - 030 NM
   RADIUS OF 035 KT WINDS - 170 NM NORTH SEMICIRCLE
                            090 NM ELSEWHERE
   VECTOR TO 36 HR OSIT: 305 DEG/ 06 KTS
   36 HRS, VALID AT:
   141800Z4 --- 12.9N2 65.8E9
   MAX SUSTAINED WINDS - 075 KT, GUSTS 090 KT
   RADIUS OK 050 KT WINDS - 035 NM
   RADIUS OF 035 KT WINDS - 170 NM NORTHEAST SEMICIRCLE
                            090 NM ELSEWHERE
   VECTOR TO 48 HR POSIT: 295 DEG/ 06 KTS
   EXTENDED OUTLOOK:
   48 HRS, VALID AT:
   150600Z2 --- 13.4N8 64.7E7
   MAX SUSTAIED WINDS - 085 KT, GUSTS 105 KT
   RADIUS OF 050 KT WINDS - 040 NM
   RADIUS OF 035 KT WINDS - 170 NM NORTHEAST SEMICIRCLE
                            090 NM ELSEWHERE
   VECTOR TO 72 HR POSIT: 295 DEG/ 06 KTS
   72 HRSGN VALID AT:
   160600Z3--- 14.4N9 62.5E3
   MAX SUSTAINED WINDS A POT KT, GVVL115 KT
   94-$87- 9> 050 KT WINDS - 050 NM NORTHEAST SEMICIRCLE
   -                        040 NM ELEWHERE
   RADIUS OF 035 KT WINDS - 180 NM NORTHEAST SEMICIRCLE
                            095 NM ELSEWHERE
REMARKS:
130900Z3 POSITION NEAR 11.1N3   68.2E6.
TROPICAL CYCLONE 08A HAS TRACKED NORT WE TWARD AT 5 KNOTS OVER
THE PAST 6 HOURS. THE WARNING POSITION IS BASED ON 130500Z VISIBLE
SATELLITE IMAGEY. THE INTENSITY IS BASED ON SHIP OBSEMATIO9
ALTHOUGH STILL LURGE AND LOOSELY ORGANIZED, THIS SYSTEM HAS
INTENSIFIED AT A CLIMATOLOGICAL RATE. OUR FORECASTED INTENSITY
REFLECTS THIS. TC 08A IS IN AN AREA OF WEAK STEERING, ITS CURRENT
MOVEMENT DUE TO A WESTWARD INFLUENCE BY THE SUBTROPICAL RIDGE AND A
MRTHWARD INFLUENCE DUE TO A COMBINATION OF SELF-PROP
LAION AND A
PASSING MID-LATITUDE TROUG .-THE FORECAST TRACK IS SUPPORTD BY THE
AVAILABLE OBJECTIVE AIDS. MAXIMUM SIGNIFICANT WAVE HEIGHT AT
130600Z0 IS 16 FEET. RENER TO WWIO30 PGFW FOR ADDITIONAL SEA HEIGHT
INFORMATION. NEXT WARNINGS AT 131500Z0 (DTG 131351Z4), 132100Z7 (DTG

131951Z0), 140300Z8 (DTG 140151Z2) AND 140900Z4 (DTG 140751Z8).//

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