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From: <ldm@weather.cod.edu>
Subject: Central Pacific: High Seas Analysis
To: <wx-tropl@lists.illinois.edu>
Message-ID: <20220215034437.E574B1C0EEE@weather.cod.edu>
Date: Tue, 15 Feb 2022 03:44:37 +0000
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646 
FZPN40 PHFO 150343
HSFNP 

HIGH SEAS FORECAST
NATIONAL WEATHER SERVICE HONOLULU HI
0500 UTC TUE FEB 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SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS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 0000 UTC FEB 15 2022.
24 HOUR FORECAST VALID 0000 UTC FEB 16 2022.
48 HOUR FORECAST VALID 0000 UTC FEB 17 2022.

.WARNINGS. 

...GALE WARNING...
.COLD FRONT JUST W OF FORECAST AREA NEAR 30N157E MOVING E 30 KT.
WIND SW 30 TO 40 KT OVER FORECAST WATERS NW OF A LINE FROM 
30N166E TO 28N160E. WIND SW 20 TO 30 KT ELSEWHERE FROM 30N
TO 24N BETWEEN 160E AND 170E. 
.12 HOUR FORECAST FRONT FROM 30N166E TO 28N160E. WIND SW 30 TO 
40 KT N OF 28N WITHIN 240 NM E OF FRONT. WINDS SW TO N 20 TO 30 KT
ELSEWHERE OVER FORECAST WATERS NW OF A LINE FROM 30N179E TO 23N160E.
ASSOCIATED SEAS INCLUDED BELOW.
.24 HOUR FORECAST FRONT FROM 30N175E TO 27N168E TO 24N160E. WIND
SW 30 TO 35 KT N OF 29N WITHIN 180 NM E OF FRONT. WIND SW 20 TO 
30 KT ELSEWHERE N OF 27N WITHIN 420 NM E OF FRONT. WINDS NW TO N
20 TO 30 KT OVER FORECAST WATERS N OF FRONT E OF 168E. WINDS N TO 
NE 20 TO 25 KT WITHIN 150 NM N OF FRONT W OF 168E. ASSOCIATED
SEAS INCLUDED BELOW.
.36 HOUR FORECAST FRONT FROM 30N178W TO 27N175E TO 23N160E. WIND 
SW TO 20 TO 30 KT N OF 27N WITHIN 240 NM E OF FRONT. WINDS NW TO N
20 TO 25 KT OVER FORECAST WATERS N OF FRONT E OF 175E. WINDS NE TO
E 20 TO 30 KT WITHIN 300 NM N OF FRONT W OF 175E. 
.48 HOUR FORECAST FRONT FROM 30N171W TO 24N179W TO 22N170E TO 23N160E.
WINDS NW TO NE 20 TO 25 KT OVER FORECAST WATERS NW OF FRONT E OF 
179W. WINDS NE TO SE 20 TO 30 KT OVER FORECAST WATERS N OF FRONT
W OF 179W. 

.SYNOPSIS AND FORECAST.

.48 HOUR FORECAST NEW LOW JUST W OF FORECAST AREA NEAR 26N154E
1011 MB. ASSOCIATED WINDS INCLUDED WITH COLD FRONT DESCRIBED IN
WARNING SECTION ABOVE. 

.COLD FRONT FROM 30N166W TO 25N168W TO 21N171W MOVING E 15 KT 
THENCE A DISSIPATING STATIONARY FRONT TO 18N178W TO 13N168E. 
WINDS SE TO SW 20 TO 25 KT N OF 25N WITHIN 240 NM E OF FRONT. 
WINDS W TO NW 20 TO 30 KT N OF 25N WITHIN 600 NM NW OF FRONT. 
WINDS N TO NE 20T O 25 KT S OF 25N WITHIN 120 NM NW OF FRONT. 
ADDITIONAL WINDS INCLUDED BELOW. ASSOCIATED SEAS INCLUDED BELOW. 
SCATTERED MODERATE TSTMS N OF 21N WITHIN 180 NM E OF FRONT. 
.24 HOUR FORECAST DISSIPATING FRONT FROM 30N158W TO 25N163W TO 
21N170W. ASSOCIATED WINDS DIMINISHED TO 20 KT OR LESS. ASSOCIATED
SEAS INCLUDED BELOW. 
.48 HOUR FORECAST TROUGH FROM 21N156W TO 30N158W. 

.TROUGH FROM 14N148W TO 21N148W TO 28N148W MOVING SLOWLY W.
ASSOCIATED WINDS INCLUDED BELOW. NUMEROUS MODERATE TSTMS FROM 24N
TO 15N BETWEEN 150W AND 140W. 
.24 HOUR FORECAST TROUGH FROM 21N150W TO 30N156W. ASSOCIATED 
WINDS INCLUDED BELOW. 
.48 TROUGH MERGED WITH TROUGH DESCRIBED IMMEDIATELY ABOVE 

.TROUGH FROM 21N158W TO 25N160W MOVING W SLOWLY.
.12 HOUR FORECAST TROUGH DISSIPATED. 

.WINDS N TO NE 20 TO 25 KT AROUND THE MAIN HAWAIIAN ISLANDS.
FOR DETAILS SEE COLASTAL WATERS FORECAST ISSUED BY NWS HONOLULU
UNDER AWIPS HEADER HFOCWFHFO AND WMO HEADER FZHW50 PHFO. 

.OTHERWISE WINDS SE TO NE 20 TO 30 KT OVER FORECAST WATERS NE OF
A LINE FROM 30N155W TO 17N140W. ALSO WINDS NE TO E 20 TO 25 KT
FROM 15N TO 07N BETWEEN 160E AND 175W.
.24 HOUR FORECAST WINDS SE TO NE 20 TO 30 KT FROM 30N TO 14N
BETWEEN 152W AND 140W. ALSO WINDS NE TO E 20 TO 25 KT WITHIN AN
AREA BOUND BY 22N170W 10N157W 03N177W 03N160E 10N160E 18N179E 
22N170W. 
.48 HOUR FORECAST WINDS NE TO E 20 TO 30 KT FROM 30N TO 10N 
BETWEEN 154W AND 120W AND ALSO WITHIN AN AREA BOUND BY 20N165E
22N165W 08N163W 02N179W 02N160E 15N160E 20N165E. 

.WINDS 20 KT OR LESS REMAINDER FORECAST AREA. 

.SEAS 12 TO 20 FT OVER FORECAST WATERS N AND NW OF A LINE FROM 
30N165W TO 24N179W TO 24N169E. SEAS 8 TO 12 FT ELSEWHERE WITHIN 
AN AREAS BOUND BY 30N160E 30N158W 07N178W 07N160E 30N160E. 
.12 HOUR FORECAST SEAS 12 TO 16 FT OVER FORECAST WATERS NW OF A 
LINE FROM 30N164W TO 26N170W TO 26N175E TO 28N160E. SEAS 8 TO 12 FT 
ELSEWHERE WITHIN AN AREA BOUND BY 30N160E 30N147W 24N147W 24N157W 
15N165W 05N173W 05N160E 30N160E. 
.24 HOUR FORECAST SEAS 8 TO 14 FT WITHIN AND AREA BOUND BY 30N160E
30N140W 13N140W 22N150W 05N164W 05N160E 30N160E. 
.48 HOUR FORECAST SEAS 8 TO 12 FT WITHIN AN AREA BOUND BY 30N160E 
30N140W 10N140W 08N155W 02N168W 02N160E 30N160E. 

.SEAS 8 FT OR LOWER REMAINDER FORECAST AREA.

.HIGH NEAR 27N173E 1018 MB. RIDGES FROM HIGH TO 25N173W AND FROM
HIGH TO 22N160E. 
.24 HOUR FORECAST HIGH N OF FORECAST AREA.

.RIDGE FROM 25N163W TO 19N170W. 

.ITCZ FROM 10N140W TO 09N148W TO 06N156W TO 05N168W TO 06N178W TO 
04N171E. ISOLATED MODERATE TSTMS WITHIN 90 NM EITHER SIDE OF 
CONVERGENCE LINE. 

$$

.FORECASTER BEDAL. HONOLULU HI.


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