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From: <ldm@weather.cod.edu>
Subject: Central Pacific: High Seas Analysis
To: <wx-tropl@lists.illinois.edu>
Message-ID: <20220121153457.B9C251C0EEE@weather.cod.edu>
Date: Fri, 21 Jan 2022 15:34:57 +0000
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271 
FZPN40 PHFO 211534
HSFNP 

HIGH SEAS FORECAST
NATIONAL WEATHER SERVICE HONOLULU HI
1700 UTC FRI JAN 21 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SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS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 21 2022.
24 HOUR FORECAST VALID 1200 UTC JAN 22 2022.
48 HOUR FORECAST VALID 1200 UTC JAN 23 2022.

.WARNINGS. 

...GALE WARNING...
.COLD FRONT FROM 30N168E TO 27N164E TO 25N160E MOVING SE 25 KT.
WIND W TO NW 30 TO 40 KT OF 27N W OF FRONT. WIND SW 30 TO 35 N OF
29N WITHIN 150 NM E OF FRONT. WINDS W TO NW 20 TO 30 KT ELSEWHERE
OVER FORECAST WATERS NW OF FRONT. WINDS S TO SW 20 TO 30 KT ELSEWHERE
WITHIN 420 NM E AND 210 NM S OF FRONT. ADDITIONAL SEAS INCLUDED BELOW.
ISOLATED MODERATE TSTMS W OF FRONT. 
.24 HOUR FORECAST COLD FRONT FROM 30N177E TO 25N171E TO 22N160E. WIND
NW TO W 30 TO 40 KT N OF 25N WITHIN 720 NM W OF FRONT. WIND SW 30 TO
35 KT N OF 25N WITHIN 300 NM E OF FRONT. WINDS W TO NW 20 TO 30 KT
ELSEWHERE W OF FRONT. WINDS S TO SW 20 TO 30 KT ELSEWHERE N OF 25N
WITHIN 720 NM E OF FRONT AND S OF 25N WITHIN 420 NM E OF FRONT. 
SEAS 15 TO 21 FT NW OF A LINE FROM 30N179W TO 26N170E TO
23N160E. ADDITIONAL SEAS INCLUDED BELOW. 
.48 HOUR FORECAST FRONT FROM 30N171W TO 25N177W TO 20N170E. WIND 
NW TO W20 TO 30 KT N OF 25N W OF FRONT. WINDS S TO SW 20 TO 30 KT
N OF 25N WITHIN 360 NM E OF FRONT. ADDITIONAL SEAS INCLUDED BELOW. 

.SYNOPSIS AND FORECAST.

.LOW JUST E OF FORECAST AREA NEAR 23N139W 1006 MB MOVING W SLOWLY.
WINDS E TO NW 20 TO 30 KT OVER FORECAST WATERS N OF 23N E OF 145W. 
WINDS N TO W 20 TO 25 KT FROM 23N TO 21N E OF 142W. SEAS 12 TO 15 FT 
OVER FORECAST WATERS FROM 28N TO 22N E OF 142W. SEAS 8 TO 12 FT 
ELSEWHERE N OF 20S E OF 145W. 
.24 HOUR FORECAST LOW NEAR 1010 MB. WINDS 20 TO 30 KT WITHIN 
300 NM OF CENTER N SEMICIRCLE. ASSOCIATED SEAS INCLUDED BELOW. 
.48 HOUR FORECAST LOW NEAR 22N145W 1010 MB. WINDS 20 TO 30 KT WITHIN
420 NM OF CENTER NW SEMICIRCLE. ASSOCIATED SEAS INCLUDED BELOW. 

.COLD FRONT FROM 30N156W TO 26N162W TO 20N175W MOVING NE 20 KT THENCE
A DISSIPATING STATIONARY FRONT TO 18N170E. WINDS S TO SW 20 TO 30 KT
N OF 26N WITHIN 300 NM E OF FRONT. WINDS NW TO W 20 TO 30 KT N OF
26N WITHIN 720 NM W OF FRONT. ADDITIONAL SEAS INCLUDED BELOW. 
.24 HOUR FORECAST FRONT FROM 30N148W TO 26N153W TO 23N160W. WINDS N 
TO NW 20 TO 25 KT WITHIN 180 NM W AND NW OF FRONT. ADDITIONAL SEAS 
INCLUDED BELOW. 
.48 HOUR FORECAST FRONT DISSIPATED. 

.OTHERWISE WINDS NE TO E 20 TO 25 KT FROM 13N TO 07N BETWEEN 179W AND 
157W. 
.24 HOUR FORECAST WINDS NE TO E 20 TO 25 KT FROM 15N TO 05N BETWEEN
177E AND 157W. 
.48 HOUR FORECAST WINDS E TO E 20 TO 25 KT FROM 17N TO 05N BETWEEN
174W AND 156W AND ALSO FROM 12N TO 04N BETWEEN 160E AND 175E. 

.WINDS 20 KT OR LESS REMAINDER FORECAST AREA. 

.OTHERWISE SEAS 8 TO 15 FT ELSEWHERE WITHIN AN AREA BOUND BY
30N160E 30N150W 16N170W 07N155W 07N160E 30N160E. 
.24 HOUR FORECAST SEAS 8 TO 15 FT ELSEWHERE WITHIN AN AREA BOUND BY 
30N160E 30N140W 22N140W 20N150W 06N163W 04N175E 18N160E. 
.48 HOUR FORECAST SEAS 8 TO 15 FT ELSEWHERE WITHIN AN AREA BOUND BY 
30N160E 30N140W 21N140W 02N162W 02N177E 12N160E 30N160E. 

.SEAS 8 FT OR LOWER REMAINDER FORECAST AREA.

.HIGH NEAR 26N173W 1017 MB. RIDGE FROM HIGH TO 20N165E.

.RIDGE FROM 30N143W TO 25N150W TO 19N163W. 

.ITCZ FROM 09N140W TO 10N147W TO 08N157W. 

.TROPICAL WAVE ALONG 09N177E 04N178E MOVING W 25 KT. ISOLATED 
MODERATE TSTMS WITHIN 150 NM EITHER SIDE OF WAVE AXIS. 

$$

.FORECASTER BEDAL. HONOLULU HI.


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