346
FZNT01 KWBC 170949
HSFAT1

HIGH SEAS FORECAST FOR METAREA IV
NWS OCEAN PREDICTION CENTER WASHINGTON DC
1030 UTC SAT MAY 17 2025

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SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS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).

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

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

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

SECURITE

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

ALL FORECASTS VALID OVER ICE FREE FORECAST WATERS

SYNOPSIS VALID 0600 UTC MAY 17.
24 HOUR FORECAST VALID 0600 UTC MAY 18.
48 HOUR FORECAST VALID 0600 UTC MAY 19.

.WARNINGS.

...STORM WARNING...
.LOW 48N39W 995 MB MOVING NE 20 KT. FROM 42N TO 49N E OF 41W
WINDS 25 TO 40 KT. SEAS 2.5 TO 5 M. ELSEWHERE WITHIN 360 NM S
SEMICIRCLE AND 180 NM NE QUADRANT WINDS 20 TO 30 KT. SEAS 2 TO
3.5 M.
.24 HOUR FORECAST LOW 54N37W 984 MB. WITHIN 120 NM SE...300 NM
NE...300 NM N AND 240 NM NW QUADRANTS...ALSO WITHIN AN AREA
BOUNDED BY
61N40W...54N40W...53N39W...52N41W...56N45W...59N47W...62N42W...61
N40W WINDS 30 TO 45 KT. SEAS 2.5 TO 5 M. ELSEWHERE N OF 52N E OF
47W WINDS 20 TO 30 KT. SEAS TO 3.5 M.
.30 HR FORECAST LOW 55N41W 990 MB. FROM 57N TO 60N BETWEEN 41W
AND 49W WINDS 35 TO 50 KT. SEAS 3.5 TO 5.5 M
.48 HOUR FORECAST LOW 51N42W 998 MB. FROM 57N TO 60N BETWEEN 42W
AND 48W WINDS 30 TO 45 KT. SEAS 2.5 TO 5.5 M. ELSEWHERE FROM 56N
TO 60N E OF 42W...ALSO FROM 60N TO 61N BETWEEN GREENLAND AND 40W
WINDS 25 TO 35 KT. SEAS 3 TO 4 M. ALSO WITHIN 240 NM S AND W
SEMICIRCLES WINDS 20 TO 30 KT. SEAS 2.5 TO 4 M.

...GALE WARNING...
.LOW 53N45W 991 MB MOVING SE 10 KT. WITHIN 300 NM W AND SW
QUADRANTS WINDS 25 TO 35 KT. SEAS 3 TO 5.5 M. ELSEWHERE WITHIN
AN AREA BOUNDED BY
53N45W...49N41W...46N46W...54N56W...60N58W...60N54W...53N45W
WINDS 20 TO 30 KT. SEAS 2 TO 4 M.
.24 HOUR FORECAST LOW 51N38W 996 MB. WITHIN 300 NM S SEMICIRCLE
WINDS 25 TO 35 KT. SEAS 2.5 TO 4.5 M.
.48 HOUR FORECAST LOW DISSIPATED E OF AREA.

...GALE WARNING...
.LOW 56N41W 992 MB MOVING W 10 KT. WITHIN 120 NM N AND NW OF A
LINE FROM 58N47W TO 59N44W TO 59N38W TO 58N35W WINDS 30 TO 45
KT. SEAS 3 TO 5 M. ELSEWHERE WITHIN 420 NM N...420 NM NE AND 240
NM SE QUADRANTS...AND FROM 57N TO 60N E OF 50W WINDS 20 TO 30
KT. SEAS 2.5 TO 4.5 M.
.24 HOUR FORECAST LOW DISSIPATED WITH CONDITIONS DESCRIBED BY
LOW 51N38W ABOVE.

...GALE WARNING...
.48 HOUR FORECAST NEW LOW 40N44W 1002 MB. FROM 37N TO 40N
BETWEEN 42W AND 46W WINDS 25 TO 35 KT. SEAS 2.5 TO 4 M.
ELSEWHERE FROM 35N TO 40N BETWEEN 39W AND 51W WINDS 20 TO 30 KT.
SEAS TO 3 M.

.SYNOPSIS AND FORECAST.

.LOW 42N46W 1010 MB MOVING E 30 KT. WITHIN AN AREA BOUNDED BY
42N35W...36N50W...35N60W...39N60W...42N46W...43N42W...42N35W
WINDS 20 TO 30 KT. SEAS TO 3.5 M.
.24 HOUR FORECAST LOW E OF AREA. FORECAST CONDITIONS DESCRIBED
WITH LOW 41N47W BELOW.

.LOW 41N61W 1008 MB MOVING E 25 KT. WITHIN AN AREA BOUNDED BY
39N60W...35N60W...32N71W...36N71W...39N60W WINDS TO 25 KT. SEAS
TO 2.5 M.
.24 HOUR FORECAST LOW 41N47W 1009 MB. FROM 34N TO 40N BETWEEN
40W AND 56W WINDS 20 TO 30 KT. SEAS TO 3 M.
.48 HOUR FORECAST LOW AND CONDITIONS E OF AREA.

.24 HOUR FORECAST LOW 44N70W 997 MB. WITHIN AN AREA BOUNDED BY
39N56W...34N56W...31N70W...33N77W...38N75W...39N56W WINDS 20 TO
30 KT. SEAS TO 3 M.
.48 HOUR FORECAST LOW 44N60W 996 MB. WITHIN AN AREA BOUNDED BY
40N50W...32N60W...33N64W...41N57W...40N50W...ALSO FROM 36N TO
41N W OF 60W WINDS 20 TO 30 KT. SEAS TO 3.5 M.

.DENSE FOG. VSBY OCCASIONALLY LESS THAN 1 NM FROM 41N TO 44N
BETWEEN 56W AND 66W...ALSO FROM 49N TO 52N BETWEEN 43W AND 46W.
.24 HOUR FORECAST DENSE FOG FROM 41N TO 46N BETWEEN 60W AND
71W...ALSO WITHIN 120 NM W OF A LINE FROM 66N36W TO 57N39W.
.48 HOUR FORECAST DENSE FOG FROM 42N TO 47N BETWEEN 54W AND 65W.

.FORECASTER SHAW. OCEAN PREDICTION CENTER.

NATIONAL HURRICANE CENTER MIAMI FL

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

SYNOPSIS VALID 0600 UTC SAT MAY 17.
24 HOUR FORECAST VALID 0600 UTC SUN MAY 18.
48 HOUR FORECAST VALID 0600 UTC MON MAY 19.

.WARNINGS.

.NONE.

.SYNOPSIS AND FORECAST.

.ATLC WITHIN 18N46W TO 17N54W TO 19N58W TO 12N60W TO 06N51W TO
11N41W TO 18N46W WINDS 20 KT OR LESS. SEAS 2.5 TO 3.5 M IN NE TO
E SWELL.
.24 HOUR FORECAST WITHIN 14N48W TO 20N35W TO 16N60W TO 12N61W TO
08N49W TO 11N44W TO 14N48W WINDS 20 KT OR LESS. SEAS 2.5 TO 3.5
M IN N TO E SWELL.
.48 HOUR FORECAST CONDITIONS IMPROVE. WINDS 20 KT OR LESS. SEAS
2.5 OR LESS.

.ATLC WITHIN 29N35W TO 29N36W TO 26N36W TO 25N35W TO 29N35W
WINDS 20 KT OR LESS. SEAS 2.5 TO 3.5 M IN NW SWELL.
.12 HOUR FORECAST CONDITIONS MERGED WITH AREA TO THE SW.

.CARIBBEAN 39 HOUR FORECAST WITHIN 29N96W TO 28N97W TO 27N97W TO
16N86W TO 16N85W TO 29N96W...INCLUDING GULF OF HONDURAS...E TO
SE WINDS 20 TO 25 KT. SEAS 2.5 M OR LESS.
.48 HOUR FORECAST CONDITIONS IMPROVE. WINDS 20 KT OR LESS. SEAS
2.5 M OR LESS.

.GULF OF AMERICA 12 HOUR FORECAST WITHIN 22N88W TO 22N90W TO
21N89W TO 22N88W NE TO E WINDS 20 TO 25 KT. SEAS 2.5 M OR LESS.
.24 HOUR FORECAST CONDITIONS IMPROVE. WINDS 20 KT OR LESS. SEAS
2.5 M OR LESS.
.42 HOUR FORECAST WITHIN 22N88W TO 22.5N88W TO 22.5N88.5W TO
22N89W TO 21.5N89W TO 21.5N88W TO 22N88W E WINDS 20 TO 25 KT.
SEAS 2.5 M OR LESS.
.48 HOUR FORECAST CONDITIONS IMPROVE. WINDS 20 KT OR LESS. SEAS
2.5 M OR LESS.

.GULF OF AMERICA 30 HOUR FORECAST WITHIN 28N95W TO 29N96W TO
28N97W TO 27N97W TO 27N96W TO 28N95W SE TO S WINDS 20 TO 25 KT.
SEAS 2.5 M OR LESS.
.39 HOUR FORECAST CONDITIONS IMPROVE. WINDS 20 KT OR LESS. SEAS
2.5 M OR LESS.

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

$$

.FORECASTER CHAN. NATIONAL HURRICANE CENTER.