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From: <ldm@weather.cod.edu>
Subject: Central Pacific: High Seas Analysis
To: <wx-tropl@lists.illinois.edu>
Message-ID: <20220221032921.C4E6F1C0EEE@weather.cod.edu>
Date: Mon, 21 Feb 2022 03:29:21 +0000
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974 
FZPN40 PHFO 210329
HSFNP 

HIGH SEAS FORECAST
NATIONAL WEATHER SERVICE HONOLULU HI
0500 UTC MON FEB 21 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SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS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 0000 UTC FEB 21 2022.
24 HOUR FORECAST VALID 0000 UTC FEB 22 2022.
48 HOUR FORECAST VALID 0000 UTC FEB 23 2022.

.WARNINGS. 

...GALE WARNING...
.FRONT NEAR 30N160E MOVING E 30 KT. S TO SE WINDS 30 TO 40 KT N 
OF 26N W OF 167E. S TO SE WINDS 20 TO 30 KT ELSEWHERE N OF 22N W 
OF 171E.
.24 HOUR FORECAST FRONT FROM 30N172E TO 23N160E. S TO SW WINDS 30
TO 35 KT WITHIN 360 NM E OF FRONT N OF 29N. WINDS 20 TO 30 KT 
ELSEWHERE N OF LINE FROM 26N176W TO 27N163E TO 28N160E. 
.48 HOUR FORECAST FRONT FROM 30N178W TO 23N170E TO 21N160E. S TO 
SW WINDS 20 TO 30 KT N OF 27N BETWEEN 168W AND FRONT. W WINDS 20 
TO 25 KT N OF 28N W OF 175E.

.SYNOPSIS AND FORECAST.

.FRONT FROM 30N169W TO 27N170W TO 24N175W TO 22N172E MOVING E 25 
KT N OF 25N...AND NEARLY STATIONARY AND DISSIPATING ELSEWHERE. N 
TO NE WINDS 20 TO 30 WITHIN 120 NM N OF FRONT BETWEEN 170W AND 
178W...AND NE TO E WINDS 20 TO 30 KT WITHIN 150 NM NW OF FRONT. 
ISOLATED MODERATE TSTMS WITHIN 150 NM E OF FRONT N OF 24N.
.24 HOUR FORECAST FRONT FROM 30N156W TO 25N160W TO 24N167W. WINDS
DIMINISHED TO 20 KT OR LESS.
.48 HOUR FORECAST FRONT WEAKENED TO TROUGH FROM 30N150W TO 
24N155W.

.TROUGH FROM 30N151W TO 25N152W TO 21N156W MOVING N SLOWLY. SE TO
S WINDS 20 TO 25 KT WITHIN 240 NM E OF TROUGH N OF 28N. ISOLATED 
MODERATE TSTMS WITHIN 180 NM E OF TROUGH N OF 26N. 
.24 HOUR FORECAST TROUGH FROM 30N151W TO 19N156W. WINDS 
DIMINISHED TO 20 KT OR LESS.
.48 HOUR FORECAST TROUGH MERGED WITH FRONT DESCRIBED DIRECTLY 
ABOVE.

.TROUGH FROM 18N154W TO 13N156W MOVING W SLOWLY. ISOLATED 
MODERATE TSTMS FROM 11N TO 18N BETWEEN 149W AND TROUGH.
.24 HOUR FORECAST WEAK TROUGH FROM 16N160W TO 11N159W.
.48 HOUR FORECAST TROUGH DISSIPATED. 

.TROUGH FROM 30N155W TO 28N154W MOVING N 25 KT. 
.24 HOUR FORECAST TROUGH DISSIPATED.

.NE TO E WINDS 20 TO 25 KT FROM 02N TO 20N W OF 180W...AND FROM 
07N TO 13N E OF 145W. 
.24 HOUR FORECAST NE TO E WINDS 20 TO 25 KT FROM 03N TO 14N W OF 
170W.
.48 HOUR FORECAST NE TO E WINDS 20 TO 25 KT FROM 01N TO 17N W OF 
165E...AND FROM 08N TO 18N E OF 160W. 

.HIGH 26N166W 1019 MB MOVING ESE 10 KT. RIDGES FROM HIGH TO 
30N164W...FROM HIGH TO 26N154W.
.24 HOUR FORECAST HIGH DISSIPATED.

.RIDGE FROM 30N144W TO 23N152W NEARLY STATIONARY.

.RIDGE FROM 30N178W TO 29N170W MOVING ESE 25 KT.

.RIDGE FROM 30N174E TO 25N169E TO 22N160E MOVING E 25 KT.

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

.SEAS 12 TO 14 FT N OF 26N W OF 163E. SEAS 8 TO 12 FT ELSEWHERE N
OF 03N W OF 170W. 
.24 HOUR FORECAST SEAS 8 TO 12 FT N OF 26N W 170E. SEAS 8 TO 10 
FT N OF 26N BETWEEN 158W AND 170E...AND FROM 03N TO 22N BETWEEN 
165W AND 165E. SEAS 8 TO 9 FT FROM 07N TO 14N E OF 150W...AND FROM
03N TO 11N W OF 162E. 
.48 HOUR FORECAST SEAS 12 TO 24 FT NW OF A LINE FROM 30N175E TO 
19N160E. SEAS 8 TO 12 FT ELSEWHERE W OF A LINE FROM 30N178E TO 
18N160E. SEAS 8 TO 10 FT N OF 28N BETWEEN 151W AND 162W...AND FROM
03N TO 15N BETWEEN 169W AND 163E. SEAS 8 TO 9 FT FROM 06N TO 15N 
BETWEEN 143W AND 154W. 

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

.ITCZ FROM 07N140W TO 07N168W TO 02N172E TO 01N160E. SCATTERED 
MODERATE TO LOCALLY STRONG TSTMS WITHIN 180 NM N OF ITCZ W OF 
170E. ISOLATED MODERATE TSTMS ELSEWHERE WITHIN 90 NM OF ITCZ W OF
173W.

$$

.FORECASTER ALMANZA. HONOLULU HI.


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