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From: <ldm@weather.cod.edu>
Subject: Central Pacific: High Seas Analysis
To: <wx-tropl@lists.illinois.edu>
Message-ID: <20220125225150.2B50B1C0EEE@weather.cod.edu>
Date: Tue, 25 Jan 2022 22:51:50 +0000
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324 
FZPN40 PHFO 252251
HSFNP 

HIGH SEAS FORECAST
NATIONAL WEATHER SERVICE HONOLULU HI
2300 UTC TUE JAN 25 2022

SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS

SEAS GIVEN AS SIGNIFICANT WAVE HEIGHT...WHICH IS THE AVERAGE HEIGHT
OF THE HIGHEST 1/3 OF THE WAVES. INDIVIDUAL WAVES MAY BE MORE THAN
TWICE THE SIGNIFICANT WAVE HEIGHT.

THIS HIGH SEAS FORECAST USES 1-MINUTE AVERAGE WINDS WHICH MAY BE
HIGHER THAN 10-MINUTE AVERAGE WINDS.

SECURITE

NORTH PACIFIC EQUATOR TO 30N BETWEEN 140W AND 160E

SYNOPSIS VALID 1800 UTC JAN 25 2022.
24 HOUR FORECAST VALID 1800 UTC JAN 26 2022.
48 HOUR FORECAST VALID 1800 UTC JAN 27 2022.

.WARNINGS. 

...GALE WARNING...
.FRONT FROM 30N171E TO 22N160E MOVING E 30 KT. S TO SW WINDS 30 
TO 40 KT BETWEEN FRONT AND 175E N OF 27N. NW WINDS 20 TO 30 KT W 
OF FRONT. ELSEWHERE S TO SW WINDS 20 TO 30 KT NW OF LINE FROM 
30N176E TO 22N160E. SEAS 8 TO 12 FEET ON EITHER SIDE OF FRONT N 
OF A LINE FROM 22N160E TO 25N172E TO 30N179E.
.24 HOUR FORECAST FRONT FROM 30N175W TO 25N178E TO 20N167E. S TO 
SW WINDS 30 TO 35 KT BETWEEN FRONT AND 170W N OF 27N. S TO SW 
WINDS 20 TO 30 KT WITHIN 480 NM E OF FRONT FROM 25N TO 27N. NW TO 
W WINDS 20 TO 25 KT 150 NM W OF FRONT. SEAS 8 TO 12 FEET ON EITHER
SIDE OF FRONT N OF A LINE 22N160E TO 25N177E TO 30N180E. .48 HOUR
FORECAST FRONT FROM 30N168W TO 21N180E TO 18N166E. S TO SW WINDS 
20 TO 30 KT BETWEEN FRONT AND 160W N OF 27N. SEAS 8 TO 13 FEET ON 
EITHER SIDE OF FRONT N OF A LINE 29N160E TO 21N174E TO 30N170W.

.SYNOPSIS AND FORECAST.

.LOW 14N149W 1010 MB MOVING WSW 10 KT. MAINLY NE TO E WINDS 20 TO
25 KT FROM 14N TO 19N BETWEEN 149W AND 160W. 
.24 HOUR FORECAST LOW DISSIPATED. 

.FRONT FROM 30N155W TO 25N161W TO 23N168W THENCE STATIONARY FRONT
TO 24N174W. SEAS 8 TO 10 FT N OF 23N AND 450 NM W OF FRONT. 
.24 HOUR FORECAST WEAK FRONT FROM 30N149W TO 25N160W. 
.48 HOUR FORECAST FRONT WEAKENED TO TROUGH FROM 30N140W TO 
26N147W.

.TROUGH FROM 29N174E TO 22N168E TO 17N160E. ISOLATED MODERATE 
THUNDERSTORMS BETWEEN TROUGH AND FRONT MENTIONED IN ABOVE GALE 
WARNING. 
.24 HOUR FORECAST TROUGH ABSORBED INTO FRONT MENTIONED IN
GALE WARNING.

.TROUGH FROM 30N150W TO 24N158W MOVING E 25 KT. 
.24 HOUR FORECAST TROUGH ABSORBED INTO WEAK FRONT FROM 30N149W TO
25N160W.

.WEAK TROUGH FROM 30N140W TO 27N147W NEARLY STATIONARY. 
.24 HOUR FORECAST TROUGH MOVED EAST OF 140W AND DISSIPATED. 

.RIDGE FROM 30N169W TO 23N178E TO 18N166E MOVING E 10 KT...AND 
GRADUALLY ERODING FROM THE SW.

.NE TO E WINDS 20 TO 25 KT FROM 06N TO 17N BETWEEN 160W AND 175E.
.24 HOUR FORECAST NE TO E WINDS 20 TO 25 KT FROM 04N TO 18N 
BETWEEN 150W AND 180W. 
.48 HOUR FORECAST WINDS EASED TO 20 KT OR LESS.

.WINDS 20 KT OR LESS REST OF FORECAST AREA. 

.ELSEWHERE SEAS MAINLY 8 TO 10 FT N OF LINE FROM 09N172E TO 05N170W
TO 13N150W TO 20N140W. 
.24 HOUR FORECAST SEAS 8 TO 10 FT BOUNDED BY AN AREA 14N169W 
19N157W 08N157W 04N170W 05N178E 13N178E 14N169W. 
.48 HOUR FORECAST SEAS 8 TO 9 FT FROM 03N TO 10 N FROM 172E TO 
161W.

.SEAS 8 FT OR LESS REST OF FORECAST AREA.

.ISOLATED MODERATE TSTMS FROM 02N TO 07N BETWEEN 170E AND 180E.

.ITCZ FROM 09N140W TO 07N150W TO 05N155W 04N164W. 


$$

.FORECASTER BLOOD. HONOLULU HI.


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