National Weather Service Weather Forecast Office

• Home
• Site Map
• News
• Organization
• Search for: NWS All NOAA 

000
FZPN01 KWBC 092213
HSFEP1

HIGH SEAS FORECAST
NWS OCEAN PREDICTION CENTER WASHINGTON DC
2230 UTC TUE APR 09 2024

SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS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).

PLEASE SEE A PROPOSAL AND REQUEST FOR COMMENTS TO INCREASE THE
READABILITY OF THE HIGH SEAS FORECAST (WEB ADDRESS LOWERCASE).
HTTPS://OCEAN.WEATHER.GOV/PROPOSED_HIGH_SEAS_TROPICAL.PHP

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 1800 UTC APR 09.
24 HOUR FORECAST VALID 1800 UTC APR 10.
48 HOUR FORECAST VALID 1800 UTC APR 11.

.WARNINGS.

...STORM WARNING...
.LOW W OF AREA NEAR 50N153E 990 MB MOVING NE 25 KT. WITHIN 1080
NM E SEMICIRCLE WINDS 25 TO 40 KT. SEAS 9 TO 17 FT. ELSEWHERE
WITHIN 1260 NM NE AND 1380 NM SE QUADRANTS WINDS TO 25 KT. SEAS
TO 11 FT.
.12 HOUR FORECAST LOW E OF AREA NEAR 54N156W 981 MB. WITHIN 840
NM SE QUADRANT WINDS 35 TO 50 KT. SEAS 10 TO 21 FT.
.24 HOUR FORECAST LOW W OF AREA NEAR 57N16E 968 MB. WITHIN 600 NM
S SEMICIRCLE WINDS 35 TO 50 KT. SEAS 13 TO 27 FT. ELSEWHERE
WITHIN 1080 NM S SEMICIRCLE WINDS 25 TO 35 KT. SEAS 12 TO 24 FT.
ALSO WITHIN 1320 NM SE QUADRANT WINDS TO 25 KT. SEAS 8 TO 16 FT.
.48 HOUR FORECAST LOW 60N173W 974 MB. WITHIN 420 NM S SEMICIRCLE
WINDS 35 TO 50 KT. SEAS 18 TO 33 FT. ELSEWHERE WITHIN 1140 NM SE
AND 900 NM SW QUADRANTS WINDS 25 TO 35 KT. SEAS 12 TO 25
FT...EXCEPT 8 TO 18 FT IN SE QUADRANT. ALSO WITHIN 1320 NM S
SEMICIRCLE WINDS TO 25 KT. SEAS 8 TO 14 FT.

...GALE WARNING...
.LOW 58N152W 992 MOVING SE 10 KT. WITHIN 660 NM SW QUADRANT WINDS
25 TO 40 KT. SEAS 8 TO 16 FT. ELSEWHERE WITHIN 1020 NM S
SEMICIRCLE AND 300 NM NE QUADRANT WINDS TO 25 KT. SEAS TO 12 FT.
.24 HOUR FORECAST LOW 55N148W 1011 MB. WITHIN 540 NM SW QUADRANT
WINDS 25 TO 40 KT. SEAS 8 TO 15 FT. ELSEWHERE WITHIN 300 NM N AND
720 NM S SEMICIRCLES WINDS TO 25 KT. SEAS TO 12 FT.
.48 HOUR FORECAST LOW 49N138W 1000 MB. WITHIN 360 NM NW AND 660
NM SW QUADRANTS WINDS 25 TO 40 KT. SEAS 8 TO 18 FT. ELSEWHERE
WITHIN 420 NM N SEMICIRCLE...AND 720 NM SE AND 1020 NM SW
QUADRANTS WINDS TO 25 KT. SEAS 8 TO 15 FT.

...GALE WARNING...
.LOW 43N141W 1020 MB MOVING NE 30 KT. WITHIN 240 NM SE AND 480 NM
SW QUADRANTS WINDS TO 25 KT. SEAS TO 11 FT.
.24 HOUR FORECAST LOW 53N133W 1004 MB. WITHIN 480 NM NW...180 NM
NE AND 360 NM SE QUADRANTS WINDS 25 TO 40 KT. SEAS 8 TO 15 FT.
ELSEWHERE WITHIN 480 NM SW QUADRANT WINDS TO 25 KT. SEAS TO 9
FT.
.48 HOUR FORECAST LOW AND CONDITIONS ABSORBED BY LOW 49N138W
DESCRIBED ABOVE.

...GALE WARNING...
.FROM 30N TO 39N BETWEEN 160W AND 173E WINDS TO 25 KT. SEAS TO 8
FT.
.24 HOUR FORECAST LOW S OF AREA NEAR 26N167W 1016 MB. WITHIN 780
NM NW AND 1020 NM NE QUADRANTS WINDS 25 TO 40 KT. SEAS 8 TO 16
FT. ELSEWHERE WITHIN 1020 NM NW AND 1380 NM NE QUADRANTS WINDS TO
25 KT. SEAS TO 10 FT.
.48 HOUR FORECAST NEW LOW S OF AREA NEAR 28N171W 997 MB. WITHIN
600 NM NW AND 960 NM NE QUADRANTS WINDS 30 TO 45 KT. SEAS TO 13
TO 27 FT. ELSEWHERE WITHIN 900 NM NW AND 1260 NM NE QUADRANTS
WINDS 20 TO 30 KT. SEAS 9 TO 18 FT.

...HEAVY FREEZING SPRAY WARNING...
.MODERATE TO HEAVY FREEZING SPRAY FROM 54N TO 58N BETWEEN 154W
AND 167W. ELSEWHERE LIGHT TO MODERATE FREEZING SPRAY N OF A LINE
FROM 55N148W TO 52N157W TO 58N171W.
.24 HOUR FORECAST MODERATE TO HEAVY FREEZING SPRAY FROM 55N TO
58N BETWEEN 156W AND 165W. ELSEWHERE LIGHT TO MODERATE FREEZING
SPRAY FROM 52N TO 59N BETWEEN 147W AND 169W.
.48 HOUR FORECAST LIGHT TO MODERATE FREEZING SPRAY FROM 54N TO
58N BETWEEN 148W AND 167W.

.SYNOPSIS AND FORECAST.

.FROM 30N TO 42N BETWEEN 120W AND 130W WINDS TO 25 KT. SEAS TO 9
FT.
.24 HOUR FORECAST FROM 33N TO 45N BETWEEN 121W AND 129W WINDS TO
25 KT. SEAS TO 10 FT.
.48 HOUR FORECAST FROM 31N TO 44N BETWEEN 121W AND 132W WINDS TO
25 KT. SEAS TO 11 FT.

.48 HOUR FORECAST FROM 34N TO 42N W OF 170E WINDS TO 25 KT. SEAS
TO 11 FT.

.DENSE FOG. VSBY OCCASIONALLY LESS THAN 1 NM FROM 51N TO 60N
BETWEEN 145W AND 148W AND FROM 53N TO 61N BETWEEN 169W AND 178W
AND FROM 36N TO 50N W OF 167E.
.24 HOUR FORECAST DENSE FOG FROM 50N TO 60N BETWEEN 135W AND 148W
AND FROM 48N TO 58N BETWEEN 152W AND 172W AND FROM 41N TO 54N
BETWEEN 173E AND 164E.
.48 HOUR FORECAST DENSE FOG FROM 44N TO 58N BETWEEN 139W AND 158W
AND N OF 55N W OF 173W.

.FORECASTER HOLLEY. OCEAN PREDICTION CENTER.

NWS 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 1800 UTC TUE APR 09.
24 HOUR FORECAST VALID 1800 UTC WED APR 10.
48 HOUR FORECAST VALID 1800 UTC THU APR 11.

.WARNINGS.

...GALE WARNING...
.42 HOUR FORECAST N OF 15N BETWEEN 94W AND 95W...INCLUDING THE
GULF OF TEHUANTEPEC...N WINDS 25 TO 35 KT. SEAS BUILDING 8 TO 10
FT. ELSEWHERE N OF 14N BETWEEN 94W AND 96W N TO NE WINDS 20 TO
25 KT. SEAS TO 8 FT.
.48 HOUR FORECAST N OF 15N BETWEEN 94.5W AND 95.5W...INCLUDING
THE GULF OF TEHUANTEPEC...N WINDS 30 TO 35 KT. SEAS 8 TO 10 FT.
ELSEWHERE N OF 13N BETWEEN 94W AND 96W N TO NE WINDS 20 TO 30
KT. SEAS TO 8 FT.

.SYNOPSIS AND FORECAST.

.FROM 25N TO 28N BETWEEN 118W AND 122W WINDS 20 KT OR LESS. SEAS
8 TO 9 FT IN NW SWELL.
.06 HOUR FORECAST WINDS 20 KT OR LESS. SEAS LESS THAN 8 FT.

.FROM 10N TO 16N W OF 130W NE TO E WINDS 20 TO 25 KT. SEAS 9 TO
11 FT PRIMARILY IN NE SWELL. ELSEWHERE W OF A LINE FROM 20N140W
TO 15N130W TO 06N119W TO 03N140W WINDS 20 KT OR LESS. SEAS 8 TO
9 FT PRIMARILY IN NE SWELL.
.24 HOUR FORECAST FROM 05N TO 12N W OF 130W NE TO E WINDS 20 TO
25 KT. SEAS 8 TO 10 FT. ELSEWHERE W OF A LINE FROM 19N140W TO
12N130W TO 06N120W TO 05N135W TO 07N140W WINDS 20 KT OR LESS.
SEAS 8 TO 9 FT IN MIXED NE AND NW SWELL.
.48 HOUR FORECAST FROM 08N TO 12N W OF 135W NE TO E WINDS 20 TO
25 KT. SEAS 8 TO 9 FT. ELSEWHERE FROM 05N TO 18N W OF 134W WINDS
20 KT OR LESS. SEAS 8 FT IN MIXED NE AND NW SWELL.

.REMAINDER OF AREA WINDS 20 KT OR LESS. SEAS LESS THAN 8 FT.

CONVECTION VALID AT 2100 UTC TUE APR 09...

.INTERTROPICAL CONVERGENCE ZONE/MONSOON TROUGH...
A TROUGH EXTENDS FROM NORTHERN COLOMBIA NEAR 10N74W, WESTWARD TO
08N85W TO 09N94W. THE ITCZ CONTINUES TO 09N94W TO 10N100W TO
04N110W TO 04N120W TO BEYOND 03N140W. SCATTERED MODERATE TO
ISOLATED STRONG CONVECTION CAN BE FOUND FROM 04N TO 10N BETWEEN
80W AND 110W. SCATTERED MODERATE CONVECTION IS FROM 04N TO 07N
BETWEEN 120W AND 131W.


.FORECASTER GR. NATIONAL HURRICANE CENTER.

$$