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Date:	Mon, 23 Sep 1996 09:17:43 -0500
From:	Charley Kline <[email-masked]>
Subject: Pacific-NW: Marine Warning -230917 (AUTOMATIC)
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ZCZC DD+ 79536
WTPN31 PGTW 231500
1. TYPHOON YATES (28W) WARNING NR 004
01 ACTIVE TROPICAL CYCLONE IN NORTHWESTPAC
MAX SUSTAINED WINDS BASED ON ONE-MINUTE AVERAGE
---
WARNING POSITION:
231200Z8 --- 16.4N1 154.9E9
MOVEMENT PAST SIX HOURS - 280 DEGREES AT 12 KTS
POSITION ACCURATE TO WITHIN 030 NM
POSITION BASED ON EYE FIXED BY A COMBINATION OF
SATELLITE AND SYNOPTIC DATA
PRESENT WIND DISTRIBUTION:
MAX SUSTAINED WINDS - 105 KT, GUSTS 130 KT
RADIUS OF 100 KT WINDS - 010 NM
RADIUS OF 050 KT WINDS - 030 NM
RADIUS OF 035 KT WINDS - 110 NM NORTH SEMICIRCLE
080 NM ELSEWHERE
REPEAT POSIT: 16.4N1 154.9E9
---
FORECASTS:
12 HRS, VALID AT:
240000Z6 --- 16.9N6 152.7E5
MAX SUSTAINED WINDS - 115 KT, GUSTS 140 KT
RADIUS OF 100 KT WINDS - 015 NM
RADIUS OF 050 KT WINDS - 040 NM
RADIUS OF 035 KT WINDS - 120 NM NORTH SEMICIRCLE
090 NM ELSEWHERE
VECTOR TO 24 HR POSIT: 285 DEG/ 13 KTS
---
24 HRS, VALID AT:
241200Z9 --- 17.5N3 150.1E7
MAX SUSTAINED WINDS - 125 KT, GUSTS 150 KT
RADIUS OF 100 KT WINDS - 025 NM
RADIUS OF 050 KT WINDS - 060 NM NORTH SEMICIRCLE
045 NM ELSEWHERE
RADIUS OF 035 KT WINDS - 135 NM NORTH SEMICIRCLE
100 NM ELSEWHERE
VECTOR TO 36 HR POSIT: 285 DEG/ 16 KTS
---
36 HRS, VALID AT:
250000Z7 --- 18.4N3 146.9E0
MAX SUSTAINED WINDS - 130 KT, GUSTS 160 KT
RADIUS OF 100 KT WINDS - 030 NM
RADIUS OF 050 KT WINDS - 070 NM NORTH SEMICIRCLE
050 NM ELSEWHERE
RADIUS OF 035 KT WINDS - 155 NM NORTH SEMICIRCLE
OVER WATER
120 NM ELSEWHERE OVER WATER
VECTOR TO 48 HR POSIT: 290 DEG/ 17 KTS
---
EXTENDED OUTLOOK:
48 HRS, VALID AT:
251200Z0 --- 19.4N4 143.5E3
MAX SUSTAINED WINDS - 125 KT, GUSTS 150 KT
RADIUS OF 100 KT WINDS - 030 NM
RADIUS OF 050 KT WINDS - 070 NM NORTH SEMICIRCLE
050 NM ELSEWHERE
RADIUS OF 035 KT WINDS - 160 NM NORTH SEMICIRCLE
OVER WATER
120 NM ELSEWHERE OVER WATER
VECTOR TO 72 HR POSIT: 290 DEG/ 12 KTS
---
72 HRS, VALID AT:
261200Z1 --- 20.8N0 138.6E8
MAX SUSTAINED WINDS - 115 KT, GUSTS 140 KT
RADIUS OF 100 KT WINDS - 020 NM
RADIUS OF 050 KT WINDS - 070 NM NORTH SEMICIRCLE
050 NM ELSEWHERE
RADIUS OF 035 KT WINDS - 160 NM NORTH SEMICIRCLE
120 NM ELSEWHERE
---
REMARKS:
231500Z1 POSITION 16.5N2  154.4E4
TYPHOON YATES (28W) IS MOVING WESTWARD AT 12 KNOTS
TOWARDS THE MARIANA ISLANDS. IT HAS DEVELOPED VERY
RAPIDLY OVER THE PAST 24 HOURS AND CURRENTLY DISPLAYS A 7
NM DIAMETER EYE. THIS SYSTEM IS SMALL AND MAY CONTINUE TO
RAPIDLY DEVELOP DURING THE NEAR TERM. ACCELERATION ALONG
TRACK IS ANTICIPATED DURING THE 24 TO 48 HOUR TIME FRAME
IN RESPONSE TO INTERACTION WITH A DEVELOPING SYSTEM TO
THE SOUTHWEST OF TY YATES. BETWEEN 48 AND 72 HOURS TY
YATES IS ANTICIPATED TO SLOW ITS FORWARD MOTION DUE TO
FORMATION OF A REVERSE-ORIENTED TROUGH. DUE TO THE SMALL
SIZE OF TY YATES, A MORE WESTWARD (VICE WEST-
NORTHWESTWARD) TRACK MAY BE POSSIBLE DUE TO INTERACTION
WITH THE OTHER DEVELOPING TROPICAL SYSTEM. DUE TO THE
SLOPPY NATURE OF THIS OTHER SYSTEM AT THIS TIME IT IS
DIFFICULT TO ESTIMATE THE DEGREE OF INTERACTION THAT MAY
OCCUR IF THIS OTHER SYSTEM DOES INDEED BECOME A TROPICAL
CYCLONE. IT APPEARS THIS OTHER SYSTEM IS DEVELOPING FROM
A MUCH LARGER SCALE CIRCULATION, ROUGHL

NNNN