Subject: Pacific-NW: 01 Active Tropical Cyclone In Northwestpac [200900]

From: SIU Weather Processor <[email-masked]>
Date: Sun, 20 Jul 1997 03:34:08 -0500

200
WTPN31 PGTW 200900
1. TROPICAL STORM ROSIE (10W) WARNING NR 007 RELOCATED
   01 ACTIVE TROPICAL CYCLONE IN NORTHWESTPAC
   MAX SUSTAINED WINDS BASED ON ONE-MINUTE AVERAGE
    ---
   WARNING POSITION:
   200600Z8 --- 14.5N0 136.7E7
     MOVEMENT PAST SIX HOURS - 345 DEGREES AT 08 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 - 065 NM NORTHEAST SEMICIRCLE
                            050 NM ELSEWHERE
   REPEAT POSIT: 14.5N0 136.7E7
    ---
   FORECASTS:
   12 HRS, VALID AT:
   201800Z1 --- 16.1N8 136.2E2
   MAX SUSTAINED WINDS - 050 KT, GUSTS 065 KT
   RADIUS OF 035 KT WINDS - 075 NM NORTHEAST SEMICIRCLE
                            060 NM ELSEWHERE
   VECTOR TO 24 HR POSIT: 345 DEG/ 08 KTS
    ---
   24 HRS, VALID AT:
   210600Z9 --- 17.7N5 135.8E7
   MAX SUSTAINED WINDS - 065 KT, GUSTS 080 KT
   RADIUS OF 050 KT WINDS - 045 NM NORTHEAST SEMICIRCLE
                            025 NM ELSEWHERE
   RADIUS OF 035 KT WINDS - 110 NM NORTHEAST SEMICIRCLE
                            090 NM ELSEWHERE
   VECTOR TO 36 HR POSIT: 345 DEG/ 08 KTS
    ---
   36 HRS, VALID AT:
   211800Z2 --- 19.2N2 135.4E3
   MAX SUSTAINED WINDS - 075 KT, GUSTS 090 KT
   RADIUS OF 050 KT WINDS - 065 NM NORTHEAST SEMICIRCLE
                            045 NM ELSEWHERE
   RADIUS OF 035 KT WINDS - 135 NM NORTHEAST SEMICIRCLE
                            115 NM ELSEWHERE
   VECTOR TO 48 HR POSIT: 345 DEG/ 08 KTS
    ---
   EXTENDED OUTLOOK:
   48 HRS, VALID AT:
   220600Z0 --- 20.7N9 134.9E7
   MAX SUSTAINED WINDS - 090 KT, GUSTS 110 KT
   RADIUS OF 050 KT WINDS - 080 NM NORTHEAST SEMICIRCLE
                            060 NM ELSEWHERE
   RADIUS OF 035 KT WINDS - 150 NM NORTHEAST SEMICIRCLE
                            130 NM ELSEWHERE
   VECTOR TO 72 HR POSIT: 345 DEG/ 08 KTS
    ---
   72 HRS, VALID AT:
   230600Z1 --- 23.6N1 134.0E8
   MAX SUSTAINED WINDS - 110 KT, GUSTS 135 KT
   RADIUS OF 100 KT WINDS - 020 NM
   RADIUS OF 050 KT WINDS - 090 NM NORTHEAST SEMICIRCLE
                            070 NM ELSEWHERE
   RADIUS OF 035 KT WINDS - 170 NM NORTHEAST SEMICIRCLE
                            150 NM ELSEWHERE
    ---
REMARKS:
200900Z1 POSITION 14.9N4  136.6E6
TROPICAL STORM ROSIE (10W) IS MOVING NORTH-NORTHWESTWARD
AT 8 KNOTS.  THIS WARNING IS RELOCATED BECAUSE A VECTOR
FROM THE PREVIOUS TO THE CURRENT WARNING POSITION IS NOT
REPRESENTATIVE OF SYSTEM MOTION.  RELOCATION IS BASED ON
MICROWAVE SATELLITE IMAGERY SHOWING THE CIRCULATION
CENTER TO BE FURTHER WEST THAN PREVIOUSLY THOUGHT.
TROPICAL STORM ROSIE IS FORECAST TO CONTINUE TO THE
NORTHWEST THROUGH THE REMAINDER OF THE FORECAST PERIOD
AND INTENSIFY AT A CLIMATOLOGICAL RATE.  MAXIMUM
SIGNIFICANT WAVE HEIGHT AT 200600Z8 IS 14 FEET. REFER TO
WWPW30 PGFW FOR ADDITIONAL SEA HEIGHT INFORMATION. NEXT
WARNINGS AT 201500Z8 (DTG 201351Z2), 202100Z5 (DTG
201951Z8), 210300Z6 (DTG 210151Z0) AND 210900Z2 (DTG
210751Z6).//

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