High seas forecast includes hurricane warnings, significant wave heights, and freezing spray.

FZNT01 KWBC 212149
HSFAT1 2230

HIGH SEAS FORECAST FOR METAREA IV
NWS OCEAN PREDICTION CENTER WASHINGTON DC
2230 UTC SAT DEC 21 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SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS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
[email protected](LOWERCASE).

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

SECURITE

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

ALL FORECASTS VALID OVER ICE FREE FORECAST WATERS

SYNOPSIS VALID 1800 UTC DEC 21.
24 HOUR FORECAST VALID 1800 UTC DEC 22.
48 HOUR FORECAST VALID 1800 UTC DEC 23.

.WARNINGS.

…HURRICANE FORCE WIND WARNING…
.LOW 46N59W 981 MB MOVING NE 25 KT. WITHIN 360 NM SE QUADRANT
WINDS 35 TO 50 KT. SEAS 11 TO 21 FT. ELSEWHERE FROM 32N TO 54N
BETWEEN 49W AND 67W WINDS 25 TO 40 KT. SEAS 9 TO 16 FT.
.18 HOUR FORECAST LOW 53N54W 964 MB. WITHIN 180 NM SE QUADRANT
WINDS 50 TO 65 KT. SEAS 18 TO 28 FT.
.24 HOUR FORECAST LOW 56N49W 962 MB. WITHIN 240 NM SE QUADRANT
WINDS 50 TO 65 KT. SEAS 20 TO 36 FT. ELSEWHERE WITHIN 300 NM SE
SEMICIRCLE AND 180 NM W QUADRANTS AND FROM 58N TO 60N BETWEEN
40W AND 50W WINDS 40 TO 50 KT. SEAS 15 TO 30 FT. ALSO N OF 47N E
OF 61W WINDS 25 TO 40 KT. SEAS 10 TO 20 FT.
.48 HOUR FORECAST LOW AND CONDITIONS E OF AREA.

…STORM WARNING…
.48 HOUR FORECAST NEW LOW 63N40W 980 MB. WITHIN 240 NM S
QUADRANT WINDS 35 TO 50 KT. SEAS 15 TO 24 FT. ELSEWHERE N OF 50N
W OF 35W WINDS 25 TO 40 KT. SEAS 10 TO 20 FT.

…GALE WARNING…
.FROM 56N TO 61N E OF 44W AREA OF W WINDS 25 TO 40 KT. SEAS 15
TO 30 FT. ELSEWHERE FROM 52N TO 62N E OF 48W AREA OF W TO NW
WINDS 25 TO 40 KT. SEAS 12 TO 24 FT.
.24 HOUR FORECAST CONDITIONS DIMINISHED.

…GALE WARNING…
.FROM 32N TO 41N BETWEEN 70W AND 76W AREA OF NW WINDS 25 TO 35
KT. SEAS 9 TO 14 FT.
.24 HOUR FORECAST NEW LOW 39N53W 1009 MB. FROM 32N TO 47N E OF
76W WINDS 20 TO 30 KT. SEAS 8 TO 14 FT.
.36 HOUR FORECAST LOW 43N46W 1006 MB. WITHIN 240 NM E SEMICIRCLE
WINDS 25 TO 35 KT. SEAS 9 TO 14 FT.
.48 HOUR FORECAST LOW 51N35W 999 MB. E OF A LINE FROM LOW TO
35N47W WINDS 25 TO 35 KT. SEAS 10 TO 16 FT. ELSEWHERE S OF 50N E
OF 60W WINDS TO 25 KT. SEAS 8 TO 14 FT.

…HEAVY FREEZING SPRAY WARNING…
.MODERATE TO HEAVY FREEZING SPRAY NW OF A LINE FROM 64N51W TO
57N61W. LIGHT TO MODERATE FREEZING SPRAY N OF 50N W OF 44W…IN
GULF OF ST LAWERENCE…AND WITHIN 60 NM OF E GREENLAND COAST.
.24 HOUR FORECAST MODERATE TO HEAVY FREEZING SPRAY N OF A LINE
FROM 63N52W TO 56N58W. LIGHT TO MODERATE FREEZING SPRAY N OF A
LINE FROM 42N67W TO 45N59W TO 60N43W TO 62N35W.
.48 HOUR FORECAST MODERATE TO HEAVY FREEZING SPRAY N OF 59N W OF
45W. LIGHT TO MODERATE FREEZING SPRAY N OF A LINE FROM 42N67W TO
48N52W TO 63N35W.

.SYNOPSIS AND FORECAST.

.DENSE FOG. VSBY OCCASIONALLY LESS THAN 1 NM FROM 45N TO 55N
BETWEEN 43W AND 70W AND N OF 60N W OF GREENLAND.
.24 HOUR FORECAST DENSE FOG N OF 51N W OF 50W AND FROM 60N TO
64N E OF 50W.
.48 HOUR FORECAST DENSE FOG FROM 48N TO 54N BETWEEN E OF 45W.

.FORECASTER KREKELER. OCEAN PREDICTION CENTER.

NATIONAL HURRICANE CENTER MIAMI FL

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

SYNOPSIS VALID 1800 UTC SAT DEC 21.
24 HOUR FORECAST VALID 1800 UTC SUN DEC 22.
48 HOUR FORECAST VALID 1800 UTC MON DEC 23.

.WARNINGS.

.NONE.

.SYNOPSIS AND FORECAST.

.ATLC WITHIN 31N57W TO 31N61W TO 30N60W TO