FZNT01 KWBC 151008
HSFAT1 1030
HIGH SEAS FORECAST FOR METAREA IV
NWS OCEAN PREDICTION CENTER WASHINGTON DC
1030 UTC SUN DEC 15 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SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS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 0600 UTC DEC 15.
24 HOUR FORECAST VALID 0600 UTC DEC 16.
48 HOUR FORECAST VALID 0600 UTC DEC 17.
.WARNINGS.
…STORM WARNING…
.LOW 36N51W 1012 MB MOVING NE 25 KT. FRONT EXTENDS FROM 49N35W TO
THE LOW TO 31N60W. N OF 43N WITHIN 150 NM E OF THE FRONT…S OF
41N WITHIN 360 NM W AND NW OF THE FRONT…AND FROM 31N TO 35N
BETWEEN 60W AND 80W WINDS 25 TO 35 KT. SEAS 8 TO 15 FT…HIGHEST
S OF 33N W OF 64W.
.24 HOUR FORECAST LOW 41N38W 1008 MB. FRONT TO EXTEND FROM 46N35W
TO THE LOW TO 36N41W TO 31N54W. WITHIN 540 NM SW AND W OF THE
FRONT WINDS 25 TO 35 KT. SEAS 8 TO 14 FT. ELSEWHERE FROM 31N TO
34N BETWEEN 60W AND 80W WINDS TO 25 KT. SEAS TO 12 FT IN N
SWELL.
.36 HOUR FORECAST LOW 40N37W 1001 MB. WITHIN 180 NM W SEMICIRCLE
WINDS 35 TO 50 KT. SEAS 10 TO 20 FT.
.48 HOUR FORECAST LOW E OF AREA 41N34W 993 MB. WITHIN 240 NM W
SEMICIRCLE WINDS 35 TO 50 KT. SEAS 12 TO 24 FT. ELSEWHERE E OF A
LINE FROM 49N35W TO 41N50W TO 31N40W WINDS 25 TO 35 KT. SEAS 8 TO
16 FT.
…GALE WARNING…
.LOW NE OF AREA 66N30W 977 MB MOVING SW 05 KT. WITHIN 660 NM S
QUADRANT WINDS 35 TO 45 KT. SEAS 12 TO 20 FT. ELSEWHERE FROM 51N
TO 65N BETWEEN 35W AND 56W WINDS 25 TO 35 KT. SEAS 9 TO 18 FT.
.24 HOUR FORECAST LOW E OF AREA 65N32W 990 MB. WITHIN 180 NM W
QUADRANT…AND FROM 54N TO 61N BETWEEN 35W AND 47W WINDS 25 TO 35
KT. SEAS 9 TO 17 FT. ELSEWHERE N OF 50N E OF 47W WINDS TO 25 KT.
SEAS 8 TO 14 FT IN MIXED SWELL.
.48 HOUR FORECAST LOW E OF AREA 64N31W 995 MB. WITHIN 240 NM W
AND NW QUADRANTS WINDS 25 TO 35 KT. SEAS TO 11 FT.
…GALE WARNING…
.LOW SE OF AREA 30N30W 999 MB MOVING NE 15 KT. S OF A LINE FROM
38N35W TO 31N42W WINDS 25 TO 35 KT. SEAS 12 TO 20 FT. ELSEWHERE
FROM 31N TO 40N BETWEEN 35W AND 48W WINDS TO 25 KT. SEAS TO 13 FT
IN MIXED SWELL.
.24 HOUR FORECAST LOW E OF AREA 36N28W 998 MB. CONDITIONS E OF
AREA.
…GALE WARNING…
.LOW INLAND 63N70W 999 MB MOVING E 20 KT. FROM 53N TO 64N W OF
56W WINDS 25 TO 35 KT. SEAS 8 TO 15 FT.
.24 HOUR FORECAST COMPLEX LOW WITH MAIN CENTER 62N51W 998 MB.
FROM 53N TO 62N W OF 47W WINDS 20 TO 30 KT. SEAS TO 11 FT.
.36 HOUR FORECAST COMPLEX LOW WITH MAIN CENTER 64N54W 994 MB. N
OF 54N W OF 48W WINDS 25 TO 35 KT. SEAS TO 11 FT.
.48 HOUR FORECAST COMPLEX LOW WITH MAIN CENTER N OF AREA 68N57W
993 MB. WITHIN 480 NM S QUADRANT WINDS 20 TO 30 KT. SEAS TO 9
FT.
…HEAVY FREEZING SPRAY WARNING…
.MODERATE TO HEAVY FREEZING SPRAY NW AND N OF A LINE FROM 62N61W
TO 64N55W. ELSEWHERE LIGHT TO MODERATE FREEZING SPRAY W AND NW OF
LINE FROM 47N63W TO 52N50W TO 59N57W TO 61N49W.
.24 HOUR FORECAST MODERATE TO HEAVY FREEZING SPRAY N OF 62N W OF
57W. ELSEWHERE LIGHT TO MODERATE FREEZING SPRAY N OF A LINE FROM
65N35W TO 62N42W…W OF A LINE FROM 52N54W TO 54N53W TO 58N60W TO
60N60W…AND N OF 60N W OF GREENLAND.
.48 HOUR FORECAST MODERATE TO HEAVY FREEZING SPRAY N OF A LINE
FROM 60N64W TO 64N52W
