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From: <ldm@weather.cod.edu>
Subject: Central Pacific: High Seas Analysis
To: <wx-tropl@lists.illinois.edu>
Message-ID: <20220315153041.0D6111C0EEF@weather.cod.edu>
Date: Tue, 15 Mar 2022 15:30:41 +0000
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031 
FZPN40 PHFO 151530
HSFNP 

HIGH SEAS FORECAST
NATIONAL WEATHER SERVICE HONOLULU HI
1700 UTC TUE MAR 15 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SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS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 MAR 15 2022.
24 HOUR FORECAST VALID 1200 UTC MAR 16 2022.
48 HOUR FORECAST VALID 1200 UTC MAR 17 2022.

.WARNINGS.

...GALE WARNING...
.TROUGH FROM 24N165E TO 20N160E MOVING NW SLOWLY.
.24 HOUR FORECAST TROUGH FROM 25N161E TO 24N160E.
.48 HOUR FORECAST NEW LOW 27N170E 1005 MB. TROUGH FROM 28N173E TO
LOW TO 23N167E TO 20N160E. WINDS 25 TO 35 KT WITHIN 270 NM E 
QUADRANT OF LOW. WINDS 20 TO 30 KT N OF 26N BETWEEN 180E AND 
175E...AND ELSEWHERE FROM 22N TO 28N BETWEEN 175E AND 166E. 

.SYNOPSIS AND FORECAST.

.FRONT FROM 30N167W TO 27N176W TO 24N174E MOVING E 20 KT. ISOLATED
MODERATE TSTMS WITHIN 90 NM OF FRONT N OF 28N.
.24 HOUR FORECAST FRONT FROM 30N154W TO 28N168W...CONTINUING AS A
TROUGH TO 23N177E. 
.48 HOUR FORECAST FRONT WEAKENED TO TROUGH FROM 30N159W TO 29N168W 
TO 26N176W.

.TROUGH FROM 30N160W TO 25N170W TO 23N179E MOVING E SLOWLY. NE 
WINDS 20 TO 25 KT WITHIN 90 NM NW OF TROUGH W OF 166W. ISOLATED 
MODERATE TSTMS WITHIN 60 NM OF TROUGH N OF 28N.
.24 HOUR FORECAST TROUGH ABSORBED BY FRONT DESCRIBED IN SECTION
IMMEDIATELY ABOVE. WINDS DIMINISHED TO 20 KT OR LESS.

.TROUGH FROM 30N140W TO 29N143W TO 29N146W MOVING N 10 KT.
.12 HOUR FORECAST TROUGH DISSIPATED N OF AREA.

.NE TO E WINDS 20 TO 25 KT FROM 05N TO 20N E OF 151W...AND FROM 05N 
TO 18N BETWEEN 151W AND 178W.
.24 HOUR FORECAST NE TO E WINDS 20 TO 25 KT FROM 05N TO 19N E OF 
160W...AND FROM 03N TO 16N BETWEEN 160W AND 180E.
.48 HOUR FORECAST NE TO E WINDS 20 TO 25 KT FROM 05N TO 19N E OF 
160W...AND FROM 03N TO 16N BETWEEN 160W AND 178E. 

.RIDGE FROM 28N147W TO 24N169W NEARLY STATIONARY...AND GRADUALLY
ERODING FROM THE W.

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

.SEAS 8 TO 11 FT N OF A LINE FROM 17N140W TO 17N152W TO 25N163W... 
AND FROM 03N TO 18N BETWEEN 157W AND 173E. SEAS 8 TO 10 FT FROM 04N 
TO 15N E OF 155W.
.24 HOUR FORECAST SEAS 8 TO 10 FT FROM 03N TO 28N E OF 148W...AND 
FROM 03N TO 15N BETWEEN 162W AND 171E. SEAS 8 TO 9 FT FROM 04N TO 
15N BETWEEN 148W AND 162W. 
.48 HOUR FORECAST SEAS 8 TO 10 FT FROM 03N TO 18N E OF 148W...AND
FROM 03N TO 16N BETWEEN 148W AND 170W. SEAS 8 TO 9 FT FROM 04N TO 
12N BETWEEN 170W AND 172E...AND FROM 24N TO 29N BETWEEN 178E AND 
165E.

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

.ITCZ FROM 03N140W TO 03N173W TO 04N177E TO 05N160E. ISOLATED 
MODERATE TSTMS WITHIN 240 NM N OF ITCZ BETWEEN 173W AND 171E...AND
WITHIN 90 NM OF ITCZ W OF 168E.

$$

.FORECASTER HOUSTON. HONOLULU HI.


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