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Date:	Mon, 30 Sep 1996 03:11:56 -0500
From:	Charley Kline <[email-masked]>
Subject: Pacific-NW: Marine Warning -300311 (AUTOMATIC)
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ZCZC DD+ 48006
WTPN32 PGTW 300900
1. TYPHOON ZANE (29W) WARNING NR 026
02 ACTIVE TROPICAL CYCLONES IN NORTHWESTPAC
MAX SUSTAINED WINDS BASED ON ONE-MINUTE AVERAGE
---
WARNING POSITION:
300600Z9 --- 27.2N1 129.2E4
MOVEMENT PAST SIX HOURS - 090 DEGREES AT 10 KTS
POSITION ACCURATE TO WITHIN 030 NM
POSITION BASED ON EYE FIXED BY A COMBINATION OF
SATELLITE, RADAR AND SYNOPTIC DATA
PRESENT WIND DISTRIBUTION:
MAX SUSTAINED WINDS - 085 KT, GUSTS 105 KT
RADIUS OF 050 KT WINDS - 090 NM SOUTH SEMICIRCLE
OVER WATER
080 NM ELSEWHERE OVER WATER
RADIUS OF 035 KT WINDS - 140 NM SOUTH SEMICIRCLE
OVER WATER
105 NM ELSEWHERE OVER WATER
REPEAT POSIT: 27.2N1 129.2E4
---
FORECASTS:
12 HRS, VALID AT:
301800Z2 --- 27.2N1 131.9E4
MAX SUSTAINED WINDS - 080 KT, GUSTS 100 KT
RADIUS OF 050 KT WINDS - 085 NM SOUTH SEMICIRCLE
OVER WATER
075 NM ELSEWHERE OVER WATER
RADIUS OF 035 KT WINDS - 140 NM SOUTH SEMICIRCLE
OVER WATER
105 NM ELSEWHERE OVER WATER
VECTOR TO 24 HR POSIT: 085 DEG/ 13 KTS
---
24 HRS, VALID AT:
010600Z7 --- 27.5N4 134.9E7
MAX SUSTAINED WINDS - 070 KT, GUSTS 085 KT
RADIUS OF 050 KT WINDS - 070 NM SOUTH SEMICIRCLE
050 NM ELSEWHERE
RADIUS OF 035 KT WINDS - 130 NM SOUTH SEMICIRCLE
095 NM ELSEWHERE
VECTOR TO 36 HR POSIT: 080 DEG/ 15 KTS
---
36 HRS, VALID AT:
011800Z0 --- 28.1N1 138.2E4
MAX SUSTAINED WINDS - 055 KT, GUSTS 070 KT
BECOMING EXTRATROPICAL
RADIUS OF 050 KT WINDS - 040 NM SOUTH SEMICIRCLE
030 NM ELSEWHERE
RADIUS OF 035 KT WINDS - 100 NM SOUTH SEMICIRCLE
060 NM ELSEWHERE
VECTOR TO 48 HR POSIT: 070 DEG/ 15 KTS
---
EXTENDED OUTLOOK:
48 HRS, VALID AT:
020600Z8 --- 29.0N1 141.4E0
MAX SUSTAINED WINDS - 045 KT, GUSTS 055 KT
BECOMING EXTRATROPICAL
RADIUS OF 035 KT WINDS - 080 NM SOUTH SEMICIRCLE
040 NM ELSEWHERE
VECTOR TO 72 HR POSIT: 070 DEG/ 15 KTS
---
72 HRS, VALID AT:
030600Z9 --- 30.9N2 147.9E1
MAX SUSTAINED WINDS - 040 KT, GUSTS 050 KT
EXTRATROPICAL
---
REMARKS:
300900Z2 POSITION 27.2N1  129.9E1
TYPHOON ZANE (29W) IS MOVING EASTWARD AT 10 KNOTS THROUGH
THE RYUKYU ISLANDS, AND HAS JUST CROSSED YORON ISLAND
(WMO 479425; RORY). DURING EYE PASSAGE YORON HAD A
MINIMUM CENTRAL PRESSURE OF 960.1 MB, WHICH EQUATES TO 83
KNOT SUSTAINED 1-MINUTE WINDS OVER THE OPEN OCEAN.
ANIMATED SATELLITE IMAGERY AND RADAR DATA INDICATE THAT
TY ZANE UNDERWENT A RAPID WEAKENING DURING THE PREVIOUS
SIX HOUR PERIOD BUT HAS MAINTAINED INTENSITY THESE PAST
SIX HOURS. AFTER THE EYE APPEARED TO WASH OUT IN BOTH
RADAR DATA AND SATELLITE IMAGERY, IT HAS REFORMED AS A
SPIRAL BANDED EYE OF APPROXIMATELY 8 NM IN DIAMETER. OUR
WARNING INTENSITY IS BASED UPON A COMBINATION OF SYNOPTIC
DATA AND SATELLITE IMAGERY ANALYSIS INDICATING WINDS OF
90 KNOTS OR LESS (DVORAK CI 5.0). WIND RADII ARE BASED ON
A 30/0345Z MICROWAVE SATELLITE IMAGERY (SSM/I) ANAL
PROVIDED BY KGWC AND AVAILABLE SYNOPTIC DATA. DATA FROM
NUMEROUS ISLANDS AROUND THE CIRCULATION DO A GOOD JOB OF
IDENTIFYING THE GALE WIND AND 50 KNOT RADII. NEXT
WARNINGS AT 301500Z9 (DTG 301353Z5), 302100Z6 (DTG
301953Z1), 010300Z4 (DTG 010153Z0) AND 010900Z0 (DTG
010753Z6). MAXIMUM SIGNIFICANT WAVE HEIGHT AT 300600Z9 IS
20 FEET. REFER TO WWPW30 PGFW FOR ADDITIONAL SEA HEIGHT
INFORMATION. REFER TO TYPHOON YATES (28W) WARNINGS
(WTPN31 PGTW) FOR SIX-HOURLY UPDATES.//

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