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From: <ldm@weather.cod.edu>
Subject: Central Pacific: High Seas Analysis
To: <wx-tropl@lists.illinois.edu>
Message-ID: <20220121032704.C47411C0EEE@weather.cod.edu>
Date: Fri, 21 Jan 2022 03:27:04 +0000
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014 
FZPN40 PHFO 210326
HSFNP 

HIGH SEAS FORECAST
NATIONAL WEATHER SERVICE HONOLULU HI
0500 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SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS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 0000 UTC JAN 21 2022.
24 HOUR FORECAST VALID 0000 UTC JAN 22 2022.
48 HOUR FORECAST VALID 0000 UTC JAN 23 2022.

.WARNINGS. 

...GALE WARNING...
.FRONT FROM 30N159W TO 22N177W TO 18N172W MOVING E 20 KT. SW 
WINDS 30 TO 35 KT N OF 28 WITHIN 120 NM OF FRONT. W WINDS 30
TO 35 KT N OF 29N BETWEEN 178W AND FRONT. WINDS 20 TO 30 KT 
ELSEWHERE N OF A LINE FROM 30N150W TO 25N159W TO 25N177W TO 
30N175E.
.24 HOUR FORECAST FRONT FROM 30N152W TO 23N158W TO 21N173W.
WINDS DECREASED TO 20 KT OR BELOW.
.48 HOUR FORECAST FRONT WEAKENING FROM 30N142W TO 25N146W.

...GALE WARNING...
.FRONT APPROACHING JUST NW OF AREA. SW WINDS 30 TO 35 KT N OF A 
LINE FROM 30N163E TO 27N160E. SW WINDS 20 TO 30 KT N OF A LINE
FROM 30N167E TO 25N160E.
.24 HOUR FORECAST FRONT ALONG 30N175E TO 23N160E. W WINDS 30 TO 
35 KT N OF A LINE FROM 30N167E TO 26N160E. W TO SW
WINDS 20 TO 30 KT ELSEWHERE N OF A LINE FROM 30N175W TO 21N160E.
.48 HOUR FORECAST FRONT FROM 30N174W TO 16N160E. W TO SW WINDS
30 TO 40 KT N OF 27N BETWEEN 171W AND 176W. WINDS ELSEWHERE N
OF A LINE FROM 30N165W TO 22N178E TO 24N160E.

...GALE WARNING...
.24 HOUR FORECAST LOW NEAR 23N141W 1009 MB. E TO NE WINDS 
30 TO 35 KT WITHIN 180 NM N SEMICIRCLE OF LOW. E TO NE WINDS
20 TO 30 KT ELSEWHERE N OF LOW E OF 146W.
.48 HOUR FORECAST LOW 22N144W 1012 MB. TROUGH FROM 27N144W TO
LOW TO 16N143W. N TO NE WINDS 20 TO 25 KT N OF 21N BETWEEN 
145W AND 150W.

.SYNOPSIS AND FORECAST.

.HIGH NEAR 21N165E 1014 MB MOVING NE 50 KT. RIDGE FROM 20N160E 
TO HIGH. RIDGE FROM 30N171E TO 22N169E TO HIGH.
.24 HOUR FORECAST HIGH NEAR 29N168W 1019 MB.
.48 HOUR FORECAST HIGH MOVED N OF AREA.

.RIDGE FROM 30N146W TO 22N158W TO 19N172W MOVING NE SLOWLY.

.E WINDS 20 TO 25 KT FROM 12N TO 07N BETWEEN 161W AND 173W.
.24 HOUR FORECAST E TO NE WINDS 20 TO 25 KT FROM 15N TO 05N 
BETWEEN 157W AND 173E.
.48 HOUR FORECAST E TO NE WINDS 20 TO 25 KT FROM 12N TO 06N 
W OF 177W.

.WINDS 20 KT OR LESS REST OF FORECAST AREA.

.SEAS 18 TO 22 FT N OF LINE FROM 30N165W TO 24N180E TO 30N172E. 
SEAS 12 TO 18 FT ELSEWHERE N OF LINE FROM 30N156W TO 16N170E 
TO 27N160E. SEAS 8 TO 12 FT ELSEWHERE N OF LINE FROM 20N140W TO
29N149W TO 10N160E. SEAS 8 TO 9 FT FROM 14N TO 07N BETWEEN 159W
AND 176W.
.24 HOUR FORECAST SEAS 18 TO 20 FT N OF 28N BETWEEN 158W AND 
168W. SEAS 18 TO 20 FT N OF 28N W OF 165E. SEAS 12 TO 18 FT 
ELSEWHERE N OF LINE FROM 30N152W TO 17N171W TO 28N177E TO 
22N160E. SEAS 12 TO 13 FT FORM 13N TO 10N BETWEEN 178W AND 
177E. SEAS 8 TO 12 FT ELSEWHERE N OF LINE FROM 30N147W TO 
06N159W TO 10N160E. SEAS 12 TO 14 FT FROM 28N TO 24N E OF 
142W. SEAS 8 TO 12 FT ELSEWHERE N OF 20N E OF 146W.
.48 HOUR FORECAST SEAS 12 TO 18 FT N OF LINE FROM 30N171W TO 
20N160E. SEAS 12 TO 15 FT N OF 21N BETWEEN 142W AND 160W.
SEAS 8 TO 12 FT ELSEWHERE N OF LINE FROM 25N140W TO 07N157W
TO 01N176W TO 11N169E TO 15N160E.

.SEAS 8 FT OR LESS REST OF FORECAST AREA.

.ITCZ FROM 09N140W TO 07N154W.

$$

.FORECASTER FOSTER. HONOLULU HI.


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