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Date:	Wed, 25 Sep 1996 09:26:07 -0500
From:	Charley Kline <[email-masked]>
Subject: Pacific-NW: Marine Warning -250926 (AUTOMATIC)
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ZCZC DD+ 53127
WTPN31 PGTW 251500 COR
1. TYPHOON YATES (28W) WARNING NR 012
02 ACTIVE TROPICAL CYCLONES IN NORTHWESTPAC
MAX SUSTAINED WINDS BASED ON ONE-MINUTE AVERAGE
---
WARNNG POSITION:
251200Z0 --- 16.0N7 145.7E7
MOVEMENT PAST SIX HOURS - 275 DEGREES AT 09 KTS
POSITION ACCURATE TO WITHIN 020 NM
POSITION BASED ON EYE FIXED BY A COMBINATION OF
SATELLITE AND RADAR
PRESENT WIND DISTRIBUTION:
MAX SUSTAINED WINDS - 125 KT, GUSTS 150 KT
RADIUS OF 100 KT WINDS - 020 NM OVER WATER
RADIUS OF 050 KT WINDS - 060 NM OVER WATER
RADIUS OF 035 KT WINDS - 145 NM SOUTHEAST SEMICIRCLE
OVER WATER
110 NM ELSEWHERE OVER WATER
REPEAT POSIT: 16.0N7 145.7E7
---
FORECASTS:
12 HRS, VALID AT:
260000Z8 --- 16.3N0 143.8E6
MAX SUSTAINED WINDS - 130 KT, GUSTS 160 KT
RADIUS OF 100 KT WINDS - 020 NM
RADIUS OF 050 KT WINDS - 065 NM
RADIUS OF 035 KT WINDS - 150 NM EAST SEMICIRCLE
OVER WATER
120 NM ELSEWHERE
VECTOR TO 24 HR POSIT: 300 DEG/ 10 KTS
---
24 HRS, VALID AT:
261200Z1 --- 17.3N1 141.9E5
MAX SUSTAINED WINDS - 130 KT, GUSTS 160 KT
RADIUS OF 100 KT WINDS - 020 NM
RADIUS OF 050 KT WINDS - 065 NM
RADIUS OF 035 KT WINDS - 160 NM NORTHEAST SEMICIRCLE
130 NM ELSEWHERE
VECTOR TO 36 HR POSIT: 320 DEG/ 11 KTS
---
36 HRS, VALID AT:
270000Z9 --- 19.1N1 140.4E9
MAX SUSTAINED WINDS - 125 KT, GUSTS 150 KT
RADIUS OF 100 KT WINDS - 020 NM
RADIUS OF 050 KT WINDS - 070 NM
RADIUS OF 035 KT WINDS - 160 NM NORTHEAST SEMICIRCLE
140 NM ELSEWHERE
VECTOR TO 48 HR POSIT: 350 DEG/ 11 KTS
---
EXTENDED OUTLOOK:
48 HRS, VALID AT:
271200Z2 --- 21.2N5 140.0E5
MAX SUSTAINED WINDS - 120 KT, GUSTS 145 KT
RADIUS OF 100 KT WINDS - 020 NM
RADIUS OF 050 KT WINDS - 075 NM
RADIUS OF 035 KT WINDS - 160 NM EAST SEMICIRCLE
140 NM ELSEWHERE
VECTOR TO 72 HR POSIT: 030 DEG/ 14 KTS
---
72 HRS, VALID AT:
281200Z3 --- 26.0N8 142.9E6
MAX SUSTAINED WINDS - 115 KT, GUSTS 140 KT
RADIUS OF 100 KT WINDS - 020 NM
RADIUS OF 050 KT WINDS - 075 NM
RADIUS OF 035 KT WINDS - 170 NM SOUTHEAST SEMICIRCLE
150 NM ELSEWHERE
---
REMARKS:
251500Z3 POSITION 16.1N8  145.2E2
TYPHOON YATES (28W) IS MOVING WESTWARD THROUGH THE
MARIANA ISLAND CHAIN AT 09 KNOTS. THE EYE HAS JUST PASSED
THE ISLAND OF FARALLON DE MEDINILLA AND ITS NORTHERN EDGE
IS AFFECTING ANATAHAN ISLAND AT THIS TIME. OUR WARNING
POSITION ACCURACY IS VERY HIGH ON THIS SYSTEM, WITH
EXCELLENT FIXES PROVIDED BY DOPPLER RADAR AND INFRARED
SATELLITE IMAGERY. THE EYEWALL HAS BEEN CLEARLY EVIDENT
ON RADAR FOR OVER TWELVE HOURS NOW. INFRARED SATELLITE
IMAGERY INDICATES THE UPPER-LEVEL PORTION OF THE EYE
HAS BECOME CLOUD FILLED AND SLIGHTLY LESS ORGANIZED OVER
THE PAST SIX HOURS, WHICH IS WHY WE HAVE DROPPED THE
MAXIMUM WIND INTENSITY BY 5 KNOTS (CROSSING THE THRESHOLD
BACK INTO TYPHOON CATEGORY FROM SUPER TYPHOON INTENSITY).
ANIMATED RADAR DATA INDICATE THAT THE LOW-LEVEL EYEWALL
IS BECOMING BETTER ORGANIZED AGAIN AND WE
ANTICIPATE REACHING SUPER TYPHOON INTENSITY AGAIN WITHIN
THE NEXT SIX TO TWELVE HOURS. RADAR DATA IS ALSO
BEGINNING TO INDICATE A VERY SMALL NORTHWARD COMPONENT TO
THE PREDOMINANTLY WESTWARD MOTION OF TY YATES. NEXT
WARNINGS AT 252100Z0 (DTG 251951Z3), 261500Z4 (DTG
261351Z8). MAXIMUM SIGNIFICANT WAVE HEIGHT AT 251200Z0 IS
27 FEET. REFER TO WWPW30 PGFW FOR ADDITIONAL SEA HEIGHT
INFORMATION. REFER TO TROPICAL STORM ZANE (29W) WARNINGS
(WTPN32 PGTW) FOR SIX-HOURLY UPDATES.//

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