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Date:	Mon, 27 Oct 1997 14:59:09 -0600
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Sender: WX-TROPL Tropical Storm and Hurricane WX products <[email-masked]>
From:	SIU Weather Processor <[email-masked]>
Subject:      Pacific-NW: This Warning Supersedes And Cancels Navpacmetoccen
West
To:	Multiple recipients of list WX-TROPL <[email-masked]>
X-UIDL: 12b15e0b5d9ad6a1a951db36b0156bbf
Status: RO
X-Mozilla-Status: 8001

746
WTPN31 PGTW 272100
THIS WARNING SUPERSEDES AND CANCELS NAVPACMETOCCEN WEST
GU 270453Z OCT 97 TROPICAL CYCLONE FORMATION ALERT
(WTPN21 PGTW 270500)
1. TROPICAL DEPRESSION 29W WARNING NR 01
01 ACTIVE TROPICAL CYCLONE IN NORTHWESTPAC
MAX SUSTAINED WINDS BASED ON ONE-MINUTE AVERAGE
---
WARNING POSITION:
271800Z8 --- 7.0N7 167.8E2
MOVEMENT PAST SIX HOURS - 285 DEGREES AT 05 KTS
POSITION ACCURATE TO WITHIN 060 NM
POSITION BASED ON CENTER LOCATED BY A COMBINATION OF
SATELLITE AND SYNOPTIC DATA
PRESENT WIND DISTRIBUTION:
MAX SUSTAINED WINDS - 025 KT, GUSTS 035 KT
REPEAT POSIT: 7.0N7 167.8E2
---
FORECASTS:
12 HRS, VALID AT:
280600Z6 --- 7.4N1 166.6E9
MAX SUSTAINED WINDS - 035 KT, GUSTS 045 KT
VECTOR TO 24 HR POSIT: 290 DEG/ 07 KTS
---
24 HRS, VALID AT:
281800Z9 --- 7.9N6 165.3E5
MAX SUSTAINED WINDS - 045 KT, GUSTS 055 KT
RADIUS OF 035 KT WINDS - 060 NM NORTH SEMICIRCLE
045 NM ELSEWHERE
VECTOR TO 36 HR POSIT: 290 DEG/ 08 KTS
---
36 HRS, VALID AT:
290600Z7 --- 8.4N2 163.8E8
MAX SUSTAINED WINDS - 055 KT, GUSTS 070 KT
RADIUS OF 050 KT WINDS - 015 NM
RADIUS OF 035 KT WINDS - 075 NM NORTH SEMICIRCLE
060 NM ELSEWHERE
VECTOR TO 48 HR POSIT: 285 DEG/ 09 KTS
---
EXTENDED OUTLOOK:
48 HRS, VALID AT:
291800Z0 --- 8.9N7 162.1E0
MAX SUSTAINED WINDS - 065 KT, GUSTS 080 KT
RADIUS OF 050 KT WINDS - 025 NM NORTH SEMICIRCLE
015 NM ELSEWHERE
RADIUS OF 035 KT WINDS - 090 NM NORTH SEMICIRCLE
070 NM ELSEWHERE
VECTOR TO 72 HR POSIT: 285 DEG/ 11 KTS
---
72 HRS, VALID AT:
301800Z2 --- 10.0N1 157.8E1
MAX SUSTAINED WINDS - 085 KT, GUSTS 105 KT
RADIUS OF 050 KT WINDS - 050 NM NORTH SEMICIRCLE
035 NM ELSEWHERE
RADIUS OF 035 KT WINDS - 120 NM NORTH SEMICIRCLE
090 NM ELSEWHERE
---
REMARKS:
272100Z2 POSITION  7.1N8  167.5E9
THE TROPICAL DISTURBANCE THAT HAS BEEN MOVING SLOWLY
THROUGH THE MARSHALL ISLANDS DURING THE PAST 2 DAYS HAS
BECOME BETTER ORGANIZED AND HAS INTENSIFIED INTO TROPICAL
DEPRESSION 29W. THE WARNING POSITION AND INTENSITY ARE
BASED ON A 271730Z0 ATELLITE INTENSITY OF T1.5 (25
KNOTS) AND 271800Z8 SYNOPTIC AND UPPER AIR DATA FROM
KWAJALEIN (WMO 91366). TD 29W IS EXPECTED TO TRACK WEST-
NORTHWESTWARD THROUGH THE FORECAST PERIOD AS THE
SUBTROPICAL RIDGE TO THE NORTH REMAINS NEARLY STATIONARY.
TD 29W IS ALSO EXPECTED TO STEADILY INTENSIFY AT THE
NORMAL RATE OF ONE T-NUMBER (20 KNOTS) PER DAY DUE TO THE
SYSTEM=S RELATIVELY SLOW FORWARD SPEED AND WEAK VERTICAL
WIND SHEAR ENVIRONMENT. MAXIMUM SIGNIFICANT WAVE HEIGHT
AT 271800Z IS 06 FEET. REFER TO WWPW31 PGFW FOR
ADDITIONAL SEA HEIGHT INFORMATION. NEXT WARNINGS AT
280300Z3 (DTG 280153Z9), 280900Z9 (DTG 280753Z5),
281500Z6 (DTG 281353Z2) AND 282100Z3 (DTG 281953Z8). THIS
WARNING SUPERSEDES AND CANCELS NAVPACMETOCCEN WEST GU
270453Z1 OCT 97 TROPICAL CYCLONE FORMATION ALERT (WTPN21
PGTW 270500).//

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