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From: <ldm@weather.cod.edu>
Subject: Central Pacific: High Seas Analysis
To: <wx-tropl@lists.illinois.edu>
Message-ID: <20220117152734.DCF9F1C0EEE@weather.cod.edu>
Date: Mon, 17 Jan 2022 15:27:34 +0000
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074 
FZPN40 PHFO 171527
HSFNP 

HIGH SEAS FORECAST
NATIONAL WEATHER SERVICE HONOLULU HI
1700 UTC MON JAN 17 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SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS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 17 2022.
24 HOUR FORECAST VALID 1200 UTC JAN 18 2022.
48 HOUR FORECAST VALID 1200 UTC JAN 19 2022.

.WARNINGS. 

...GALE WARNING...
.24 HOUR FORECAST NEW FRONT 30N171E TO 28N164E TO 27N160E. 
SW TO W WINDS 30 TO 35 KT W OF FRONT N OF 28N. SW TO W 
WINDS 20 TO 30 KT ELSEWHERE 180 NM EITHER SIDE OF FRONT. 
.48 HOUR FORECAST FRONT FROM 30N179E TO 22N160E. SW TO NW WINDS
30 TO 40 KT N OF LINE FROM 30N173W TO 27N179E TO 27N164E
TO 29N160E. SW TO NW WINDS 20 TO 30 KT ELSEWHERE N OF LINE FROM
30N166W TO 22N179W TO 23N160E.  

.SYNOPSIS AND FORECAST.

.FRONT FROM 30N169E TO 20N172E TO 17N160E. FRONT STATIONARY AND
DISSIPATING W OF 172E. W TO NW WINDS 20 TO 30 KT WITHIN 270 NM
W OF FRONT N OF 25N. SW WINDS 20 TO 30 KT WITHIN 180 NM E OF 
FRONT N OF 23N. ISOLATED MODERATE TSTMS WITHIN 180 NM E OF FRONT
N OF 26N.  
.24 HOUR FORECAST FRONT FROM 30N161W TO 21N177E. W TO NW WINDS 
20 TO 30 KT WITHIN 180 NM W OF FRONT N OF 27N. SW WINDS 20 
TO 25 KT WITHIN 150 NM E OF FRONT N OF 26N.  
.48 HOUR FORECAST FRONT FROM 30N151W TO 27N158W. WINDS DIMINISHED
TO 20 KT OR LESS. 

.TROUGH FROM 21N145W TO 17N145W NEARLY STATIONARY. SCATTERED MODERATE
TSTMS WITHIN 210 NM SE OF TROUGH.  
.24 HOUR FORECAST TROUGH DISSIPATED. 

.HIGH NEAR 22N165W 1015 MB MOVING SW 10 KT. RIDGE FROM 19N178E TO 
HIGH.
.24 HOUR FORECAST TROUGH AND HIGH DISSIPATED. 

.RIDGE FROM 30N141W TO 24N156W NEARLY STATIONARY.

.RIDGE FROM 22N168E TO 23N160E NEARLY STATIONARY.

.WINDS 20 KT OR LESS REMAINDER FORECAST AREA.

.SEAS 12 TO 18 FT N OF LINE FROM 30N165W TO 24N176W TO 25N167W 
TO 30N162W. SEAS 8 TO 12 FT ELSEWHERE N OF LINE FROM 30N162W
TO 21N174W TO 15N160E. 
.24 HOUR FORECAST 12 TO 14 FT N OF A LINE FROM 30N160W TO 22N178W 
TO 28N174E TO 28N160E. SEAS 8 TO 12 FT ELSEWHERE N OF A LINE FROM 
30N155W TO 17N176W TO 17N171E TO 26N160E. 
.48 HOUR FORECAST SEAS 18 TO 24 FT N OF 29N BETWEEN 168E AND 162E. 
SEAS 12 TO 18 FT ELSEWHERE N OF LINE FROM 30N178W TO 23N160E. SEAS
8 TO 12 FT ELSEWHERE N OF A LINE FROM 30N148W TO 17N169W TO 
22N177E TO 21N160E. 

.SEAS 8 FT OR LOWER REMAINDER FORECAST AREA.

.ITCZ FROM 07N140W TO 07N150W. ISOLATED MODERATE TSTMS WITHIN 90 NM 
OF ITCZ.

.ISOLATED MODERATE TSTMS FROM 08N TO 04N W OF 163E. 

$$

.FORECASTER THOMAS. HONOLULU HI.


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