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From: <ldm@weather.cod.edu>
Subject: Central Pacific: High Seas Analysis
To: <wx-tropl@lists.illinois.edu>
Message-ID: <20220104100858.1FE2E1C0EEE@weather.cod.edu>
Date: Tue, 4 Jan 2022 10:08:58 +0000
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540 
FZPN40 PHFO 041008
HSFNP 

HIGH SEAS FORECAST
NATIONAL WEATHER SERVICE HONOLULU HI
1100 UTC TUE JAN 04 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SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS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 04 2022.
24 HOUR FORECAST VALID 0600 UTC JAN 05 2022.
48 HOUR FORECAST VALID 0600 UTC JAN 06 2022.

.WARNINGS.

...GALE WARNING...
.12 HOUR FORECAST NEW COLD FRONT FROM 30N161E TO 29N160E. SW TO W 
WINDS 20 TO 30 KT N OF A LINE FROM 28N165E TO 26N160E.
.24 HOUR FORECAST COLD FRONT FROM 30N168E TO 24N160E. SW TO W WINDS
25 TO 35 KT N OF 28N W OF 172E. SW TO W WINDS 20 TO 30 KT ELSEWHERE
N OF A LINE FROM 28N178E TO 26N170E TO 26N160.
.48 HOUR FORECAST COLD FRONT FROM 30N179E TO 24N170E TO 22N160E. SW
TO W WINDS 25 TO 40 KT N OF 28N W OF 175E. W TO SW WINDS 20 TO 30 
KT ELSEWHERE N OF A LINE FROM 28N170W TO 24N180E TO 24N160E.

.SYNOPSIS AND FORECAST. 

.COLD FRONT FROM 30N167W TO 21N177W TO 16N170E...CONTINUING AS A 
SHEAR LINE TO 13N160E. COLD FRONT MOVING E 20 KT...AND SHEAR LINE 
MOVING S SLOWLY. W TO NW WINDS 20 TO 30 KT N OF COLD FRONT E OF 
178W. SW WINDS 20 TO 25 KT WITHIN 180 NM E OF COLD FRONT N OF 27N. 
NE WINDS 20 TO 25 KT WITHIN 150 NM N OF SHEAR LINE. ISOLATED 
MODERATE TSTMS WITHIN 150 NM SE OF COLD FRONT N OF 26N.
.24 HOUR FORECAST FRONT FROM 30N158W TO 22N166W TO 18N179E TO 
16N168E. SE TO S WINDS 20 TO 30 KT N OF 25N BETWEEN 148W AND 155W.
.48 HOUR FORECAST FRONT FROM 30N146W TO 26N151W TO 23N164W. SE TO S 
WINDS 20 TO 25 KT E OF FRONT N OF 27N.

.COLD FRONT FROM 30N169E TO 27N160E MOVING E 40 KT. ISOLATED 
MODERATE TSTMS N OF COLD FRONT.
.12 HOUR FORECAST COLD FRONT FROM 30N178E TO 29N174E TO 30N171E. W
WINDS 20 TO 30 KT N OF 29N BETWEEN 176E AND 178E. 
.24 HOUR FORECAST COLD FRONT MOVED JUST N OF AREA. W WINDS 20 TO 30
KT N OF 28N BETWEEN 168W AND 176W.
.48 HOUR FORECAST WINDS DIMINISHED TO 20 KT OR LESS.

.48 HOUR FORECAST NEW TROUGH FROM 21N148W TO 16N149W. 

.SE TO S WINDS 20 TO 25 KT N OF A LINE FROM 20N146W TO 21N150W TO 
23N156W. E TO SE WINDS 20 TO 25 KT FROM 17N TO 22N E OF 150W.
.24 HOUR FORECAST E TO SE WINDS 20 TO 25 KT FROM 16N TO 25N E OF 
148W.
.48 HOUR FORECAST E TO SE WINDS 20 TO 25 KT FROM 18N TO 22N E OF 
145W.

.HIGH JUST W OF AREA 24N158W 1019 MB MOVING E 35 KT. RIDGES FROM 
HIGH TO 26N175E TO 30N179E...AND FROM HIGH TO 23N171E TO 20N177E...
MOVING E 35 KT. 
.24 HOUR FORECAST HIGH 24N173E 1016 MB.
.48 HOUR FORECAST HIGH DISSIPATED.

.RIDGE FROM 28N140W TO 22N150W TO 19N160W 16N178E MOVING NNE 
SLOWLY...AND GRADUALLY ERODING FROM THE W. 

.24 HOUR FORECAST NEW HIGH 26N177W 1016 MB.
.48 HOUR FORECAST HIGH 29N160W 1019 MB.

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

.SEAS 12 TO 21 FT N OF A LINE FROM 30N170W TO 19N180E TO 19N172E TO 
22N168E. SEAS 8 TO 12 FT ELSEWHERE N OF A LINE FROM 30N164W TO 
18N180E 10N160E. SEAS 8 TO 9 FT N OF 28N BETWEEN 151W AND 155W.
.24 HOUR FORECAST SEAS 12 TO 19 FT N OF A LINE FROM 30N161W TO
22N168W TO 22N177W TO 28N176E TO 28N171E TO 26N160E. SEAS 8 TO 12 
FT ELSEWHERE N OF A LINE FROM 25N159W TO 10N175W TO 10N170E TO
24N160E.SEAS 8 TO 10 FT N OF A LINE FROM 16N140W TO 20N149W TO 
22N150W TO 25N159W.
.48 HOUR FORECAST SEAS 12 TO 22 FT N OF A LINE FROM 27N180E TO 
23N170E TO 23N160E. SEAS 12 TO 16 FT N OF A LINE FROM 30N154W TO
24N158W TO 27N170W TO 27N180E. SEAS 8 TO 12 FT ELSEWHERE N OF A 
LINE FROM 30N144W TO 04N169W TO 04N170E...AND ELSEWHERE N OF A 
LINE FROM 25N180E TO 18N160E. SEAS 8 TO 10 FT FROM 10N TO 24N E OF 
147W.

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

.ISOLATED MODERATE TSTMS FROM 14N TO 18N BETWEEN 145W AND 154W.

.MONSOON TROUGH FROM 01N160E TO 01N166E. ISOLATED MODERATE TSTMS
WITHIN 60 NM OF MONSOON TROUGH.

.ITCZ FROM 08N140W TO 09N146W TO 12N153W. ISOLATED MODERATE TSTMS 
WITHIN 180 NM OF ITCZ.

$$

.FORECASTER HOUSTON. HONOLULU HI.


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