489
FZPN01 KWBC 161537
HSFEP1

HIGH SEAS FORECAST
NWS OCEAN PREDICTION CENTER WASHINGTON DC
1630 UTC FRI MAY 16 2025

SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS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.

ONLY YOU KNOW THE WEATHER AT YOUR POSITION. REPORT IT TO THE
NATIONAL WEATHER SERVICE. EMAIL US AT
VOSOPS@NOAA.GOV(LOWERCASE).

MARINERS SHOULD NOTE THAT FORECASTS FOR SEAS ARE IN UNITS OF
METERS.

FOR ANY TROPICAL CYCLONE INFORMATION BEYOND 48 HOURS REFERENCE
THE ASSOCIATED NWS TROPICAL CYCLONE FORECAST/ADVISORY (TCM).

SECURITE

PACIFIC N OF 30N AND S OF 67N E OF A LINE FROM BERING STRAIT
TO 50N 160E

ALL FORECASTS VALID OVER ICE FREE FORECAST WATERS

SYNOPSIS VALID 1200 UTC MAY 16.
24 HOUR FORECAST VALID 1200 UTC MAY 17.
48 HOUR FORECAST VALID 1200 UTC MAY 18.

.WARNINGS.

...GALE WARNING...
.24 HOUR FORECAST COMPLEX LOW WITH FIRST CENTER 46N165W 1004 MB
AND SECOND CENTER 46N160W 1001 MB. WITHIN 180 NM SW SEMICIRCLE
OF FIRST CENTER AND WITHIN 180 NM S SEMICIRCLE OF SECOND CENTER
WINDS 25 TO 35 KT. SEAS 2.5 TO 3.5 M.
.48 HOUR FORECAST COMPLEX LOW WITH FIRST CENTER 48N155W 994 MB
AND SECOND CENTER 51N153W 997 MB. WITHIN 300 NM S SEMICIRCLE OF
FIRST CENTER WINDS 25 TO 40 KT. SEAS 3 TO 5 M. ELSEWHERE FROM
40N TO 51N BETWEEN 143W AND 165W WINDS 20 TO 30 KT. SEAS TO 2.5
TO 3.5 M.

.SYNOPSIS AND FORECAST.

.COMPLEX LOW WITH MEAN CENTER 58N151W 999 MB DRIFTING N 05 KT.
FROM 47N TO 60N BETWEEN 128W AND 162W WINDS TO 25 KT. SEAS TO 3
M.
.24 HOUR FORECAST LOW 59N146W 1007 MB. WITHIN 240 NM SW OF A
LINE FROM 51N131W TO 58N143W WINDS TO 25 KT. SEAS TO 3 M.
.48 HOUR FORECAST LOW DISSIPATED. FROM 45N TO 50N E OF 128W
WINDS LESS THAN 25 KT. SEAS TO 3 M.

.S OF 39N BETWEEN 120W AND 128W WINDS 20 TO 30 KT. SEAS TO 3 M.
.24 HOUR FORECAST FROM 31N TO 38N BETWEEN 120W AND 124W WINDS TO
25 KT. SEAS TO 3 M.
.48 HOUR FORECAST FROM 31N TO 40N BETWEEN 118W AND 129W WINDS 20
TO 30 KT. SEAS 2.5 TO 3.5 M.

.LOW 52N179W 1007 MB MOVING S 20 KT. FROM 36N TO 50N BETWEEN
177E AND 169E WINDS TO 25 KT. SEAS TO 3 M.
.24 HOUR FORECAST LOW DISSIPATED. FROM 36N TO 44N BETWEEN 175W
AND 172E WINDS LESS THAN 25 KT. SEAS 2.5 TO 3.5 M.
.48 HOUR FORECAST CONDITIONS DIMINISHED.

.24 HOUR FORECAST LOW NW OF AREA 57N166E 1000 MB. N OF 50N W OF
172E WINDS TO 25 KT. SEAS TO 2.5 M.
.48 HOUR FORECAST LOW 54N173E 1006 MB. FROM 41N TO 46N BETWEEN
178W AND 174E WINDS 20 TO 30 KT. SEAS TO 3 M.

.DENSE FOG. VSBY OCCASIONALLY 1 NM OR LESS FROM 40N TO 42N
BETWEEN 159W AND 165W...AND FROM 56N TO 58N BETWEEN 158W AND
170W...FROM 46N TO 49N W OF 162E.
.24 HOUR FORECAST DENSE FOG FROM 39N TO 49N BETWEEN 148W AND
165W...AND N OF 45N BETWEEN 170E AND 167E...AND FROM 44N TO 48N
W OF 164E.
.48 HOUR FORECAST DENSE FOG FROM 45N TO 48N BETWEEN 136W AND
147W...AND FROM 52N TO 55N BETWEEN 179E AND 177E...AND WITHIN
120 NM SW OF LINE FROM 46N168E TO 51N162E.

.FORECASTER POCHE. OCEAN PREDICTION CENTER.

NATIONAL HURRICANE CENTER MIAMI FL

E PACIFIC FROM THE EQUATOR TO 30N E OF 140W AND 03.4S TO THE
EQUATOR E OF 120W

SYNOPSIS VALID 1200 UTC FRI MAY 16.
24 HOUR FORECAST VALID 1200 UTC SAT MAY 17.
48 HOUR FORECAST VALID 1200 UTC SUN MAY 18.

.WARNINGS.

.NONE.

.SYNOPSIS AND FORECAST.

.FROM 14N TO 23N W OF 135W NE TO E WINDS 20 TO 25 KT. SEAS 2.5
TO 3 M. ELSEWHERE W OF A LINE FROM 25N140W TO 17N126W TO 11N140W
WINDS 20 KT OR LESS. SEAS 2.5 M PRIMARILY IN NE SWELL.
.24 HOUR FORECAST FROM 08N TO 18N W OF 133W WINDS 20 KT OR LESS.
SEAS 2.5 TO 3 M PRIMARILY IN NE SWELL.
.48 HOUR FORECAST FROM 07N TO 16N W OF 134W WINDS 20 KT OR LESS.
SEAS 2.5 TO 3 M PRIMARILY IN NE SWELL.

.N OF 29N BETWEEN 120W AND 127W WINDS 20 KT OR LESS. SEAS 2.5 TO
3 M IN NW SWELL.
.24 HOUR FORECAST WINDS 20 KT OR LESS. SEAS LESS THAN 2.5 M.

.18 HOUR FORECAST GULF OF CALIFORNIA N OF 30N S TO SW WINDS 20
TO 25 KT. SEAS LESS THAN 2.5 M.
.24 HOUR FORECAST LITTLE CHANGE.
.42 HOUR FORECAST GULF OF CALIFORNIA FROM 29N TO 30.5N S TO SW
WINDS 20 TO 25 KT. SEAS LESS THAN 2.5 M. N OF 30.5W NW WINDS 20
TO 25 KT. SEAS LESS THAN 2.5 M.

.REMAINDER OF AREA WINDS 20 KT OR LESS. SEAS LESS THAN 2.5 M.

CONVECTION VALID AT 1500 UTC FRI MAY 16...

.INTERTROPICAL CONVERGENCE ZONE/MONSOON TROUGH...
THE MONSOON TROUGH EXTENDS FROM A 1010 MB LOW PRESSURE LOCATED
OVER NORTHERN COLOMBIA NEAR 10N75W TO 07N93W TO 09N110W TO
06N123W. THE ITCZ CONTINUES FROM 06N123W TO BEYOND 05N140W.
SCATTERED MODERATE CONVECTION IS NOTED FROM 02N TO 07N AND E OF
88W TO THE COAST OF COLOMBIA...AND FROM 05N TO 11N BETWEEN 90W
AND 130W. SIMILAR CONVECTIVE ACTIVITY IS FROM 11N TO 14N BETWEEN
89W AND 93W.

$$
.FORECASTER GR. NATIONAL HURRICANE CENTER.