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From: <ldm@weather.cod.edu>
Subject: Central Pacific: High Seas Analysis
To: <wx-tropl@lists.illinois.edu>
Message-ID: <20220102152941.137C71C0EEE@weather.cod.edu>
Date: Sun, 2 Jan 2022 15:29:41 +0000
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695 
FZPN40 PHFO 021529
HSFNP 

HIGH SEAS FORECAST
NATIONAL WEATHER SERVICE HONOLULU HI
1700 UTC SUN JAN 02 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SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS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 JAN 02 2022.
24 HOUR FORECAST VALID 1200 UTC JAN 03 2022.
48 HOUR FORECAST VALID 1200 UTC JAN 04 2022.

.WARNINGS.

...GALE WARNING...
.COLD FRONT FROM 30N178E TO 23N170E TO 19N160E MOVING E 20 KT. NW 
WINDS 25 TO 40 KT N OF 28N W OF 172E. NW TO W WINDS 20 TO 30 KT 
ELSEWHERE W OF COLD FRONT.
.24 HOUR FORECAST COLD FRONT FROM 30N173W TO 23N180E TO 14N160E. NW
TO W WINDS 20 TO 30 KT WITHIN 750 NM W OF COLD FRONT N OF 24N. SW 
WINDS 20 TO 30 KT WITHIN 240 NM E OF COLD FRONT N OF 25N. N TO NE 
WINDS 20 TO 25 KT FROM COLD FRONT TO 22N W OF 172E.
.48 HOUR FORECAST FRONT FROM 30N166W TO 24N170W TO 18N178E TO 
16N166E. NW TO W WINDS 20 TO 30 KT BETWEEN FRONT AND 175W N OF 26N.
SW WINDS 20 TO 25 KT WITHIN 180 NM E OF FRONT N OF 28N.

.SYNOPSIS AND FORECAST. 

.WEAKENING FRONT FROM 30N165W TO 23N166W TO 12N172W MOVING E SLOWLY.
W WINDS 20 TO 25 KT N OF 27N BETWEEN 168W AND 174W. ISOLATED 
MODERATE TSTMS WITHIN 150 NM E OF FRONT N OF 16N.
.24 HOUR FORECAST FRONT MERGED WITH TROUGH DESCRIBED IN SECTION
IMMEDIATELY BELOW. ASSOCIATED WINDS DIMINISHED TO 20 KT OR LESS.

.TROUGH FROM 28N162W TO 23N163W TO 17N163W NEARLY STATIONARY. SE TO
S WINDS 20 TO 30 KT N OF A LINE FROM 18N150W TO 20N153W TO 22N156W 
27N162W. ISOLATED MODERATE TSTMS WITHIN 270 NM E OF TROUGH. 
.24 HOUR FORECAST TROUGH FROM 30N161W TO 17N167W. SE TO S WINDS 20
TO 25 KT N OF 23N BETWEEN 152W AND 159W.
.48 HOUR FORECAST TROUGH DISSIPATED. S WINDS 20 TO 25 KT N OF 26N
BETWEEN 149W AND 154W.

.E WINDS 20 TO 25 KT FROM 17N TO 22N E OF 150W.
.24 HOUR FORECAST E TO SE WINDS 20 TO 25 KT FROM 17N TO 23N E OF 
152W.
.48 HOUR FORECAST E TO SE WINDS 20 TO 25 KT FROM 18N TO 22N E OF 
149W.

.48 HOUR FORECAST NEW FRONT FROM 30N171E TO 29N167E TO 30N164E. 
SW WINDS 20 TO 30 KT N OF 26N W OF 164E.

.HIGH 19N172E 1011 MB MOVING SE 15 KT. RIDGES FROM HIGH TO 
19N167E...FROM HIGH TO 24N178W TO 30N177W...AND FROM HIGH TO
18N178E TO 14N176W...MOVING ESE 15 KT.
.24 HOUR FORECAST HIGH 18N179E 1011 MB.
.48 HOUR FORECAST HIGH DISSIPATED.

.RIDGE FROM 30N146W TO 22N150W TO 14N156W NEARLY STATIONARY.

.48 HOUR FORECAST NEW HIGH 26N176E 1016 MB.

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

.SEAS 12 TO 22 FT N OF A LINE FROM 30N175E TO 23N170E TO 23N160E. 
SEAS 12 TO 14 FT N OF 28N BETWEEN 157W AND 162W. SEAS 12 TO 13 FT N 
OF 28N BETWEEN 170W AND 174W. SEAS 8 TO 12 FT ELSEWHERE N OF A 
LINE FROM 21N151W TO 21N163W TO 17N169W TO 16N178W TO 23N178E TO 
22N171E TO 16N160E.
.24 HOUR FORECAST SEAS 12 TO 21 FT N OF A LINE FROM 30N175W TO 
25N180E TO 20N171E TO 19N160E. SEAS 8 TO 12 FT ELSEWHERE N OF A 
LINE FROM 30N168W TO 21N180E TO 16N174E TO 13N160E. SEAS 8 TO 9 FT
N OF 27N BETWEEN 154W AND 159W.
.48 HOUR FORECAST SEAS 12 TO 20 FT N OF A LINE FROM 30N168W TO 
18N179W TO 18N171E. SEAS 8 TO 12 FT ELSEWHERE N OF A LINE FROM 
30N163W TO 12N180E TO 10N160E. SEAS 8 TO 10 FT N OF 27N E OF 156W.

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

.ITCZ FROM 09N140W TO 11N154W. ISOLATED MODERATE TSTMS WITHIN 90 NM 
OF ITCZ.

$$

.FORECASTER HOUSTON. HONOLULU HI.


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