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From: <ldm@weather.cod.edu>
Subject: Central Pacific: High Seas Analysis
To: <wx-tropl@lists.illinois.edu>
Message-ID: <20220315213714.011351C0EEF@weather.cod.edu>
Date: Tue, 15 Mar 2022 21:37:13 +0000
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568 
FZPN40 PHFO 152137
HSFNP 

HIGH SEAS FORECAST
NATIONAL WEATHER SERVICE HONOLULU HI
2300 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SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS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 1800 UTC MAR 15 2022.
24 HOUR FORECAST VALID 1800 UTC MAR 16 2022.
48 HOUR FORECAST VALID 1800 UTC MAR 17 2022.

.WARNINGS.

...GALE WARNING...
.TROUGH FROM 23N163E TO 20N160E MOVING NW SLOWLY. WINDS 20 TO 25 KT
FROM 23N TO 26N BETWEEN 162E AND 167E.
.24 HOUR FORECAST TROUGH FROM 27N164E TO 22N160E.
.48 HOUR FORECAST NEW LOW 28N173E 1005 MB. TROUGH FROM LOW TO 30N175E
TO 23N170E TO 20N163E. WINDS 25 TO 35 KT WITHIN 270 NM E SEMICIRCLE
OF LOW. WINDS 20 TO 30 KT N OF 21N BETWEEN 170E AND 175W.

.SYNOPSIS AND FORECAST.

.FRONT FROM 30N161W TO 26N170W TO 22N173E MOVING E 20 KT. 
.24 HOUR FORECAST FRONT FROM 30N154W TO 27N168W...CONTINUING AS A TROUGH
TO 23N180E. 
.48 HOUR FORECAST FRONT WEAKENED TO TROUGH FROM 30N161W TO 27N170W
TO 26N173W.

.TROUGH FROM 30N155W TO 26N165W TO 24N172W MOVING E SLOWLY. 
.24 HOUR FORECAST TROUGH ABSORBED BY FRONT DESCRIBED IN SECTION IMMEDIATELY
ABOVE.

.HIGH 30N172E 1022 MB MOVING NE 10 KT. RIDGE FROM HIGH TO 30N160E MOVING
NE 10 KT. 

.NE TO E WINDS 20 TO 25 KT FROM 05N TO 20N E OF 150W...AND S OF 15S
BETWEEN 170E AND 150W.
.24 HOUR FORECAST NE TO E WINDS 20 TO 25 KT FROM 04N TO 18N E OF 170W...AND
FROM 03N TO 13N BETWEEN 170E AND 170W.
.48 HOUR FORECAST NE TO E WINDS 20 TO 25 KT FROM 04N TO 18N E OF 160W...AND
FROM 03N TO 14N BETWEEN 180W AND 160W. 

.RIDGE FROM 30142W TO 27N150W TO 23N168W NEARLY STATIONARY...AND GRADUALLY
ERODING FROM THE W.

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

.SEAS 8 TO 10 FT N OF 150W E OF 155W... AND FROM 04N TO 13N BETWEEN
175E AND 155W.
.24 HOUR FORECAST SEAS 8 TO 10 FT FROM 04N TO 20N E OF 150W... AND FROM
03N TO 14N BETWEEN 175E AND 150W.
.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 02N150W TO 03N174W TO 04N177E TO 05N160E. ISOLATED
MODERATE TSTMS WITHIN 90 NM OF ITCZ W OF 168E.

$$

.FORECASTER SHIGESATO. HONOLULU HI.


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