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From: <ldm@weather.cod.edu>
Subject: Central Pacific: High Seas Analysis
To: <wx-tropl@lists.illinois.edu>
Message-ID: <20220101095014.7590A1C0EEE@weather.cod.edu>
Date: Sat, 1 Jan 2022 09:50:14 +0000
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124 
FZPN40 PHFO 010950
HSFNP 

HIGH SEAS FORECAST
NATIONAL WEATHER SERVICE HONOLULU HI
1100 UTC SAT JAN 01 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SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS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 0600 UTC JAN 01 2022.
24 HOUR FORECAST VALID 0600 UTC JAN 02 2022.
48 HOUR FORECAST VALID 0600 UTC JAN 03 2022.

.WARNINGS.

...GALE WARNING...
.LOW NEAR 25N166W 1001 MB MOVING N 20 KT. FIRST TROUGH FROM LOW TO
26N163W TO 22N157W TO 20N154W MOVING N 20 KT AND SECOND TROUGH FROM
LOW TO 20N165W TO 10N170W TO 06N174W MOVING E SLOWLY. ISOLATED MODERATE
TSTMS FROM 14N TO 21N BETWEEN 167W AND 157W. E TO SE WINDS 25 TO 35
KT N OF FIRST TROUGH AND LOW.
.24 HOUR FORECAST LOW MOVED WELL N OF AREA. TROUGH FROM 30N166W TO
20N167W TO 13N172W. SE WINDS 20 TO 30 KT N OF A LINE FROM 16N146W TO
24N160W TO 30N164W. 
.48 HOUR FORECAST TROUGH FROM 30N161W TO 20N165W TO 16N168W. E TO SE
WINDS 20 TO 25 KT N OF 22N BETWEEN 159W AND 150W... AND FROM 17N TO
23N E OF 150W.

FOR FORECAST DETAILS N OF 30N...SEE HIGH SEAS FORECAST FZPN01 KWBC 
FROM OCEAN PREDICTION CENTER.

...GALE WARNING...
.FRONT FROM 30N165E TO 23N160E MOVING E 20 KT. S TO SW WINDS 20 TO
30 KT NW OF A LINE FROM 30N170E TO 23N160E. 
.24 HOUR FORECAST FRONT FROM 30N175E TO 23N170E TO 18N160E. WINDS 25
TO 35 KT N OF 27N W OF 170E. WINDS 20 TO 25 KT ELSEWHERE NW OF A LINE
FROM 30N177E TO 24N172E TO 20N160E. 
.48 HOUR FORECAST FRONT FROM 30N173W TO 24N180E TO 18N170E TO 15N160E.
WINDS 20 TO 30 KT N OF 23N BETWEEN 166E AND 171W. WINDS 20 TO 25 KT
FROM 17N TO 21N W OF 165E. 

.SYNOPSIS AND FORECAST. 

.DISSIPATING COLD FRONT FROM 30N171W TO 24N171W TO 17N180W TO 14N171W
MOVING E 10 KT. N TO NE WINDS 20 TO 30 KT N OF 20N BETWEEN 180W AND
FRONT. ISOLATED MODERATE TSTMS WITHIN 14N TO 22N BETWEEN 176W AND 167W.
.24 HOUR FORECAST FRONT MERGED WITH TROUGH DESCRIBED IN FIRST GALE
WARNING ABOVE. ASSOCIATED WINDS DIMINISHED TO 20 KT OR LESS. 
 
.24 HOUR FORECAST LOW N OF AREA. W WINDS 20 TO 30 KT N OF 25N BETWEEN
178W AND 170W.
.48 HOUR FORECAST LOW ABSORBED WITH LOW WELL N OF AREA. ASSOCIATED
WINDS DIMINISHED TO 20 KT OR LESS. 

.24 HOUR FORECAST NEW HIGH 19N168E 1012 MB. 
.48 HOUR FORECAST HIGH 19N178W 1010 MB. 

.RIDGE FROM 30N173E TO 23N168E TO 18N160E MOVING S 15 KT. 

.RIDGE FROM 30N146W TO 21N150W TO 12N155W NEARLY STATIONARY.

.SEAS 12 TO 18 FT NW OF A LINE FROM 30N164E TO 25N160E. SEAS 8 TO 12
FT ELSEWHERE NW OF A LINE FROM 30N170E TO 22N160E. SEAS 12 TO 16 FT
N OF 25N BETWEEN 180W AND 157W. SEAS 8 TO 12 FT ELSEWHERE N OF 18N
BETWEEN 176E AND 148W. 
.24 HOUR FORECAST SEAS 12 TO 20 FT NW OF A LINE FROM 30N174E TO 23N168E
TO 24N160E. SEAS 12 TO 13 FT N OF 25N BETWEEN 174W AND 170W. SEAS 8
TO 12 FT ELSEWHERE N OF A LINE FROM 20N150W TO 23N160W TO 16N174W TO
23N174E TO 16N160E.
.48 HOUR FORECAST SEAS 18 TO 21 FT N OF 26N BETWEEN 168E AND 180E.
SEAS 12 TO 18 FT ELSEWHERE NW OF A LINE FROM 30N175W TO 20N172E TO
20N160E. SEAS 8 TO 12 FT ELSEWHERE N OF A LINE FROM 30N171W TO 15N172E
TO 14N160E. SEAS 8 TO 10 FT N OF 23N BETWEEN 159W AND 150W.

.REMAINDER OF AREA WINDS 20 KT OR LESS. SEAS 8 FT OR LESS.

.ITCZ FROM 10N140W TO 09N149W TO 07N161W. ISOLATED MODERATE TSTMS
FROM 06N TO 11N BETWEEN 160W AND 150W.

$$

.FORECASTER SHIGESATO. HONOLULU HI.


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