High Seas Forecast
Issued by NWS

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000
FZNT01 KWBC 210946
HSFAT1

HIGH SEAS FORECAST FOR METAREA IV
NWS OCEAN PREDICTION CENTER WASHINGTON DC
1030 UTC THU MAR 21 2024

CCODE/1:31:04:01:00/AOE/NWS/CCODE
SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS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).

FOR INFORMATION ON ATLANTIC ICEBERGS SEE INFORMATION FROM NORTH
ATLANTIC ICE SERVICE AT HTTPS://OCEAN.WEATHER.GOV/ATL_TAB.PHP
(ALL LOWERCASE).

FROM APRIL 1 TO OCTOBER 15, DUE TO THE CLIMATOLOGY OF THE NORTH
ATLANTIC, HIGH SEAS FORECASTS WILL ONCE AGAIN INCLUDE ALL
FORECASTS OF WINDS 20 TO 30 KNOTS AND SEAS 8 FEET OR GREATER.
ALSO, PLEASE SEE HTTPS://OCEAN.WEATHER.GOV/PROPOSED_HIGH_SEAS
_TROPICAL.PHP FOR A PROPOSAL, AND A REQUEST FOR COMMENTS, TO
INCREASE READABILITY OF THE HIGH SEAS FORECAST (WEB ADDRESS
LOWERCASE).

SECURITE

NORTH ATLANTIC NORTH OF 31N TO 67N AND WEST OF 35W

ALL FORECASTS VALID OVER ICE FREE FORECAST WATERS

SYNOPSIS VALID 0600 UTC MAR 21.
24 HOUR FORECAST VALID 0600 UTC MAR 22.
48 HOUR FORECAST VALID 0600 UTC MAR 23.

.WARNINGS.

...STORM WARNING...
.FROM 47N TO 65N E OF 48W WINDS 25 TO 40 KT. SEAS 12 TO 21 FT.
.24 HOUR FORECAST NEW LOW 62N38W 1002 MB. WITHIN 360 NM S
QUADRANT WINDS 35 TO 50 KT. SEAS 12 TO 23 FT. ELSEWHERE WITHIN
420 NM S AND SW QUADRANTS WINDS 25 TO 35 KT. SEAS 8 TO 14 FT.
.48 HOUR FORECAST LOW AND CONDITIONS E OF AREA.

...STORM WARNING...
.LOW 45N69W 993 MB MOVING NE 15 KT. WITHIN 720 NM S QUADRANT
WINDS 25 TO 35 KT. SEAS 9 TO 15 FT.
.24 HOUR FORECAST LOW 49N64W 989 MB. WITHIN 660 NM NE...420 NM
SE....AND 720 NM S QUADRANTS WINDS 30 TO 45 KT. SEAS 10 TO 18 FT.
.48 HOUR FORECAST COMPLEX LOW WITH FIRST CENTER 53N57W 995 MB AND
SECOND CENTER 58N51W 994 MB. WITHIN 180 NM NE SEMICIRCLE OF
SECOND CENTER WINDS 40 TO 50 KT. SEAS 14 TO 22 FT. ELSEWHERE
WITHIN 480 NM NW AND 420 NM E AND NE QUADRANTS OF FIRST CENTER
AND 720 NM S AND SE AND 420 NM W QUADRANTS OF SECOND CENTER WINDS
25 TO 40 KT. SEAS 9 TO 17 FT.

...GALE WARNING...
.LOW 32N54W 1014 MB MOVING NE 30 KT. WITHIN 240 NM ON EITHER SIDE
OF A LINE FROM 43N35W TO 36N49W TO LOW CENTER WINDS 20 TO 30 KT.
SEAS 8 TO 14 FT.
.24 HOUR FORECAST LOW 43N46W 1010 MB. FROM 34N TO 50N BETWEEN 35W
AND 46W WINDS 25 TO 35 KT. SEAS 8 TO 13 FT.
.48 HOUR FORECAST LOW 55N38W 1000 MB.  WITHIN 300 NM N AND NE AND
780 NM S QUADRANTS WINDS 25 TO 40 KT. SEAS 9 TO 16 FT.

...GALE WARNING...
.48 HOUR FORECAST FROM 31N TO 38N W OF 68W WINDS 25 TO 40 KT.
SEAS 8 TO 14 FT.

...HEAVY FREEZING SPRAY WARNING...
.MODERATE TO HEAVY FREEZING SPRAY N OF 60N W OF 50W. ELSEWHERE
LIGHT TO MODERATE FREEZING SPRAY N OF 58N W OF 48W AND WITHIN 90
NM E AND SE OF THE GREENLAND COAST.
.24 HOUR FORECAST MODERATE TO HEAVY FREEZING SPRAY N OF 61N W OF
48W. ELSEWHERE LIGHT TO MODERATE FREEZING SPRAY N OF 57N W OF
40W.
.48 HOUR FORECAST MODERATE TO HEAVY FREEZING SPRAY N OF 45N W OF
60W. ELSEWHERE LIGHT TO MODERATE FREEZING SPRAY N OF 60N W OF 50W
AND FROM 44N TO 52N W OF 50W.

.SYNOPSIS AND FORECAST.

.N OF 60N BETWEEN 52W AND 60W WINDS 20 TO 30 KT. SEAS TO 10 FT.
.24 HOUR FORECAST CONDITIONS DIMINISHED.

.DENSE FOG. VSBY OCCASIONALLY LESS THAN 1 NM N OF 53N E OF 45W
AND N OF 62N BETWEEN 52W AND 58W.
.24 HOUR FORECAST DENSE FOG FROM 41N TO 55N BETWEEN 43W AND 56W.
.48 HOUR FORECAST DENSE FOG FROM 50N TO 64N W OF 35W.

.FORECASTER ACHORN. OCEAN PREDICTION CENTER.

NWS NATIONAL HURRICANE CENTER MIAMI FL

ATLANTIC FROM 07N TO 31N W OF 35W INCLUDING CARIBBEAN SEA AND
GULF OF MEXICO

SYNOPSIS VALID 0600 UTC THU MAR 21.
24 HOUR FORECAST VALID 0600 UTC FRI MAR 22.
48 HOUR FORECAST VALID 0600 UTC SAT MAR 23.

.WARNINGS.

...ATLC GALE WARNING...
.ATLC 30 HOUR FORECAST N OF 27N W OF 77W SE WINDS 25 TO 30 KT.
SEAS TO 8 FT. ELSEWHERE N OF 20N AND W OF A LINE FROM 31N74W TO
27N65W TO 23N61W TO 20N70W E TO SE WINDS 20 TO 25 KT. SEAS LESS
THAN 8 FT.
.42 HOUR FORECAST WARM FRONT ALONG THE SE U.S. COAST. N OF 29N W
OF 77W SE TO S WINDS 30 TO 35 KT. SEAS 9 TO 14 FT. ELSEWHERE N
OF 20N W OF 70W E TO SE WINDS 20 TO 30 KT. SEAS 8 TO 10 FT N AND
E OF THE BAHAMAS. FROM 21N TO 28N BETWEEN 59W AND 70W NE TO E
WINDS 20 TO 25 KT. SEAS TO 8 FT.
.48 HOUR FORECAST FRONTAL SYSTEM W OF AREA OVER E GULF OF
MEXICO. N OF 26N W OF 74W SE TO S WINDS 30 TO 35 KT. SEAS
8 TO 12 FT...EXCEPT 11 TO 14 FT N OF 29N BETWEEN 76W AND 79W.
ELSEWHERE N OF 20N W OF 68W E TO SE WINDS 20 TO 30 KT. SEAS 8 TO
11 FT NE OF THE BAHAMAS. FROM 21N TO 28N BETWEEN 58W AND 68W NE
TO E WINDS 20 TO 25 KT. SEAS 8 TO 9 FT. WITHIN AREA BOUNDED BY
31N54W TO 31N48W TO 26N53W TO 22N58W TO 28N58W TO 31N54W WINDS
20 KT OR LESS. SEAS 8 FT IN MIXED NE AND NW SWELL.

.SYNOPSIS AND FORECAST.

.ATLC LOW PRES NEAR 31N56W 1015 MB WITH COLD FRONT TO 25N60W TO
23N64W THEN STATIONARY FRONT TO 20N72W. WITHIN AREA BOUNDED BY
31N63W TO 31N52W TO 31N51W TO 28N58W TO 25N65W TO 29N64W TO
31N63W WINDS 20 KT OR LESS. SEAS 8 TO 9 FT IN W TO NW SWELL.
.24 HOUR FORECAST COLD FRONT FROM 31N53W TO 25N58W THEN
WEAKENING STATIONARY FRONT TO 20N70W. N OF 30N BETWEEN 48W AND
51W WINDS 20 KT OR LESS. SEAS TO 8 FT IN DECAYING W TO NW SWELL.
.36 HOUR FORECAST COLD FRONT FROM 31N50W TO 25N56W THEN
DISSIPATING STATIONARY FRONT TO 20N70W. WINDS 20 KT OR LESS.
SEAS LESS THAN 8 FT.

.ATLC FROM 16N TO 25N E OF 40W E WINDS 20 TO 25 KT. SEAS 8 TO 10
FT. ELSEWHERE FROM 11N TO 28N E OF 47W WINDS 20 KT OR LESS. SEAS
8 TO 9 FT IN E SWELL.
.24 HOUR FORECAST FROM 15N TO 28N E OF 46W WINDS 20 KT OR LESS.
SEAS 8 TO 9 FT IN E SWELL.
.48 HOUR FORECAST FROM 17N TO 27N E OF 43W WINDS 20 KT OR LESS.
SEAS TO 8 FT IN DECAYING E SWELL.

.ATLC AND CARIBBEAN 18 HOUR FORECAST FROM 19N TO 20N BETWEEN 73W
AND 76W...INCLUDING THE WINDWARD PASSAGE...NE WINDS 20 TO 25 KT.
SEAS LESS THAN 8 FT.
.24 HOUR FORECAST LITTLE CHANGE.
.36 HOUR FORECAST WINDS 20 KT OR LESS. SEAS LESS THAN 8 FT.

.CARIBBEAN 09 HOUR FORECAST FROM 11N TO 12N BETWEEN 70W AND
76W...INCLUDING THE GULF OF VENEZUELA...NE TO E WINDS 20 TO 25
KT. SEAS LESS THAN 8 FT.
.18 HOUR FORECAST FROM 11N TO 13N BETWEEN 72W AND 76W NE TO E
WINDS 20 TO 30 KT. SEAS 8 TO 9 FT. IN THE GULF OF VENEZUELA...
NE TO E WINDS 20 TO 25 KT. SEAS LESS THAN 8 FT.
.24 HOUR FORECAST LITTLE CHANGE.
.42 HOUR FORECAST FROM 11N TO 14N BETWEEN 70W AND 76W
...INCLUDING THE GULF OF VENEZUELA...NE TO E WINDS 20 TO 25 KT.
SEAS 8 TO 9 FT...EXCEPT LESS THAN 8 FT IN THE GULF OF VENEZUELA.
.48 HOUR FORECAST LITTLE CHANGE.

.CARIBBEAN 30 HOUR FORECAST W OF 85W...INCLUDING THE YUCATAN
CHANNEL...SE WINDS 20 TO 25 KT. SEAS LESS THAN 8 FT.
.42 HOUR FORECAST FROM 16N TO 18N BETWEEN 84W AND 86W E TO SE
WINDS 20 TO 30 KT. SEAS LESS THAN 8 FT.
.48 HOUR FORECAST LITTLE CHANGE.

.GULF OF MEXICO 18 HOUR FORECAST LOW PRES ALONG A FRONTAL
BOUNDARY NEAR THE CENTRAL TEXAS COAST. N OF 27N BETWEEN 90W AND
95W E TO SE WINDS 20 TO 25 KT. SEAS LESS THAN 8 FT.
.24 HOUR FORECAST LOW PRES JUST INLAND TEXAS COAST NEAR 29N95W
1010 MB WITH WARM FRONT TO NEAR 28N89W. FROM 26N TO 29N BETWEEN
87W AND 91W E TO SE WINDS 20 TO 25 KT. SEAS LESS THAN 8 FT. S OF
28N E OF 84W...INCLUDING THE STRAITS OF FLORIDA...SE WINDS
20 TO 25 KT. SEAS LESS THAN 8 FT.
.30 HOUR FORECAST LOW PRES JUST INLAND NEAR 30N92W 1007 MB WITH
COLD FRONT TO NEAR 24N95W. SE OF A LINE FROM 29N84W TO 26N87W TO
24N91W...INCLUDING THE STRAITS OF FLORIDA...SE TO S WINDS 20 TO
25 KT. SEAS 8 FT. WINDS AND SEAS HIGHER IN AND NEAR NUMEROUS
SHOWERS AND TSTMS E OF FRONT AND NEAR THE LOW.
.48 HOUR FORECAST LOW PRES TO MOVE INLAND THE SE U.S. COLD FRONT
TO EXTEND FROM THE LOW TO 30N88W TO 26N87W AND TO 21N89W. N OF
27N W OF FRONT TO 96W NW TO N WINDS 20 TO 25 KT. SEAS LESS THAN
8 FT. S OF 26N E OF 85W...INCLUDING THE STRAITS OF FLORIDA...SE
TO S WINDS 20 TO 25 KT. SEAS TO 8 FT. WINDS AND SEAS HIGHER IN
AND NEAR NUMEROUS SHOWERS AND TSTMS E OF FRONT.

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


.FORECASTER AGUIRRE. NATIONAL HURRICANE CENTER.

$$


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