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From: <ldm@weather.cod.edu>
Subject: Central Pacific: High Seas Analysis
To: <wx-tropl@lists.illinois.edu>
Message-ID: <20220131152453.5C9CB1C0EEE@weather.cod.edu>
Date: Mon, 31 Jan 2022 15:24:53 +0000
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018 
FZPN40 PHFO 311524
HSFNP 

HIGH SEAS FORECAST
NATIONAL WEATHER SERVICE HONOLULU HI
1700 UTC MON JAN 31 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SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS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 1200 UTC JAN 31 2022.
24 HOUR FORECAST VALID 1200 UTC FEB 01 2022.
48 HOUR FORECAST VALID 1200 UTC FEB 02 2022.

.WARNINGS. 

...GALE WARNING...

.FRONT NEAR 30N160E MOVING E 40 KT. S TO SW WINDS 25 TO 40 KT N 
OF 25N W OF 173E. S TO SW WINDS 20 TO 30 KT ELSEWHERE NW OF A LINE 
FROM 27N178E TO 23N169E TO 21N160E.
.24 HOUR FORECAST FRONT FROM 30N179W TO 25N173E TO 19N160E. S TO SW 
WINDS 25 TO 40 KT WITHIN 420 NM E OF FRONT N OF 26N. NW WINDS 25 TO 
35 KT W OF FRONT N OF 25N. S TO SW WINDS 20 TO 30 KT ELSEWHERE 
WITHIN 570 NM E OF FRONT N OF 24N. N WINDS 20 TO 25 KT WITHIN 210 
NM N OF FRONT W OF 163E.
.48 HOUR FORECAST FRONT FROM 30N167W TO 24N175W TO 18N166E. S TO SW
WINDS 25 TO 35 KT WITHIN 360 NM E OF FRONT N OF 28N. NW TO W WINDS 
20 TO 30 KT WITHIN 690 W OF FRONT N OF 28N. S TO SW WINDS 20 TO 30 
KT ELSEWHERE WITHIN 420 NM E OF FRONT N OF 26N.

.SYNOPSIS AND FORECAST.

.FRONT FROM 30N161W TO 24N165W TO 19N172W TO 16N177E MOVING E 15 
KT. WINDS 20 TO 30 KT N OF A LINE FROM 28N155W TO 26N158W TO 
25N164W TO 27N170W TO 28N172W. E TO SE WINDS 20 TO 25 KT N OF 24N
BETWEEN 148W AND 153W. ISOLATED MODERATE TSTMS N OF 27N BETWEEN 
158W AND 164W.
.24 HOUR FORECAST FRONT FROM 30N154W TO 24N159W TO 23N163W. WINDS 
DIMINISHED TO 20 KT OR LESS.
.48 HOUR FORECAST FRONT DISSIPATED.

.FRONT FROM 27N140W TO 26N143W MOVING S SLOWLY. 
.24 HOUR FORECAST FRONT DISSIPATED.

.NE TO E WINDS 20 TO 25 KT FROM 07N TO 13N BETWEEN 156W AND 178W.
.24 HOUR FORECAST NE TO E WINDS 20 TO 25 KT FROM 07N TO 12N BETWEEN
162W AND 180E.
.48 HOUR FORECAST NE TO E WINDS 20 TO 25 KT FROM 08N TO 11N BETWEEN
166W AND 175W.

.24 HOUR FORECAST NEW TROUGH FROM 23N140W TO 20N146W. NE WINDS 20 TO 
25 KT WITHIN 210 NM N OF TROUGH.
.48 HOUR FORECAST TROUGH FROM 28N145W TO 23N145W TO 18N148W. E TO SE 
WINDS 20 TO 30 KT N OF 23N E OF 145W.

.HIGH 27N178W 1017 MB MOVING E 30 KT. RIDGES FROM HIGH TO 
30N177W...FROM HIGH TO 22N171W...AND FROM HIGH TO 21N171E TO 
19N160E...MOVING E 30 KT.
.24 HOUR FORECAST HIGH 28N162W 1018 MB.
.48 HOUR FORECAST HIGH DISSIPATED.

.RIDGE FROM 30N148W TO 24N155W TO 19N168W MOVING E SLOWLY...AND
GRADUALLY ERODING FROM THE SW. 

.OTHERWISE...WINDS 20 KT OR LESS OVER REMAINDER OF FORECAST AREA.

.SEAS 18 TO 23 FT N OF 28N BETWEEN 168W AND 174W. SEAS 12 TO 18 FT 
ELSEWHERE N OF A LINE FROM 30N164W TO 24N172W TO 24N180E. SEAS 12 
TO 14 FT NW OF A LINE FROM 30N165E TO 27N160E. SEAS 8 TO 12 FT
ELSEWHERE N OF A LINE FROM 30N155W TO 26N168W TO 20N178W TO 20N176E
TO 30N168E. SEAS 8 TO 9 FT FROM 04N TO 14N BETWEEN 154W AND 175E.
.24 HOUR FORECAST SEAS 12 TO 18 FT N OF A LINE FROM 30N174W TO 
26N174E TO 27N160E. SEAS 12 TO 13 FT N OF 24N BETWEEN 158W AND 
164W. SEAS 8 TO 12 FT ELSEWHERE N OF A LINE FROM 30N152W TO 18N167W
TO 13N177E TO 25N179E TO 22N160E. SEAS 8 TO 10 FT FROM 05N TO 11N 
BETWEEN 162W AND 172E.
.48 HOUR FORECAST SEAS 12 TO 18 FT N OF A LINE FROM 30N166W TO
26N180E TO 24N166E TO 29N160E. SEAS 8 TO 13 FT N OF 24N E OF 146W.
SEAS 8 TO 12 FT ELSEWHERE N OF A LINE FROM 30N161W TO 27N164W TO 
23N179W TO 20N160E. SEAS 8 TO 10 FT N OF 20N BETWEEN 149W AND 
160W...AND FROM 04N TO 14N BETWEEN 162W AND 177E.

.OTHERWISE...SEAS 8 FT OR LOWER OVER REMAINDER OF FORECAST AREA.

.ITCZ FROM 08N140W TO 07N160W TO 06N180E. ISOLATED MODERATE TSTMS 
WITHIN 90 NM OF ITCZ E OF 153W.

$$

.FORECASTER HOUSTON. HONOLULU HI.


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