FZNT01 KWBC 220400
HSFAT1 0430
HIGH SEAS FORECAST FOR METAREA IV
NWS OCEAN PREDICTION CENTER WASHINGTON DC
0430 UTC SUN SEP 22 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SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS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).
FOR ANY TROPICAL CYCLONE INFORMATION BEYOND 48 HOURS REFERENCE
THE ASSOCIATED NWS TROPICAL CYCLONE FORECAST/ADVISORY (TCM).
THE NATIONAL WEATHER SERVICE IS ACCEPTING PUBLIC COMMENTS UNTIL
OCTOBER 16 2024 ON A PROPOSAL TO REPLACE FEET WITH METERS WHEN
DESCRIBING SEAS IN A VARIETY OF NATIONAL MARINE CENTER TEXT AND
GRAPHICAL PRODUCTS FOR THE HIGH SEAS AREAS ONLY.
TO LEARN MORE PLEASE VISIT (WEB ADDRESS LOWERCASE)
HTTPS://OCEAN.WEATHER.GOV/PROPOSED-METERS.PHP
FROM OCTOBER 15 TO APRIL 1, DUE TO THE CLIMATOLOGY OF THE NORTH
ATLANTIC AND THE FREQUENCY AND VOLUME OF WEATHER HAZARDS, ALONG
WITH CUSTOMER FEEDBACK, HIGH SEAS FORECASTS WILL BE LIMITED TO
WINDS OF 25 TO 35 KNOTS AND HIGHER, AND SEAS OF 12 FEET OR
GREATER, ALONG WITH FREEZING SPRAY, DENSE FOG, VOLCANIC ASH,
AND ANYTHING TROPICAL (INCLUDING A DEPRESSION). LESSER
CONDITIONS WILL BE INCLUDED FOR WARNING CONDITIONS AND TO
PRESERVE CONTINUITY WHERE APPROPRIATE.
SECURITE
NORTH ATLANTIC NORTH OF 31N TO 67N AND WEST OF 35W
ALL FORECASTS VALID OVER ICE FREE FORECAST WATERS
SYNOPSIS VALID 0000 UTC SEP 22.
24 HOUR FORECAST VALID 0000 UTC SEP 23.
48 HOUR FORECAST VALID 0000 UTC SEP 24.
.WARNINGS.
…STORM WARNING…
.LOW 52N41W 994 MB MOVING NW 05 KT. WITHIN 120 NM W OF A LINE
FROM 62N39W TO 55N45W WINDS 40 TO 55 KT. SEAS 12 TO 25 FT.
ELSEWHERE WITHIN 360 NM S QUADRANT AND E OF A LINE FROM 50N55W TO
59N50W TO 60N43W TO 63N41W WINDS 25 TO 40 KT. SEAS 9 TO 21 FT.
.24 HOUR FORECAST LOW 53N45W 1001 MB. WITHIN 420 NM SW…480 NM
W…AND 480 NM N QUADRANTS WINDS 25 TO 40 KT. SEAS 9 TO 18 FT.
.48 HOUR FORECAST LOW 51N42W 1004 MB. FROM 45N TO 58N BETWEEN 35W
AND 54W WINDS 20 TO 30 KT. SEAS TO 11 FT.
…GALE WARNING…
.LOW 41N52W 1006 MB MOVING NE 30 KT. WITHIN 300 NM SE QUADRANT
AND FROM 40N TO 45N BETWEEN 47W AND 60W WINDS 25 TO 35 KT. SEAS 8
TO 13 FT.
.24 HOUR FORECAST LOW 46N39W 999 MB. FROM 40N TO 48N BETWEEN 35W
AND 44W WINDS 25 TO 40 KT. SEAS 8 TO 14 FT.
.48 HOUR FORECAST LOW AND ASSOCIATED CONDITIONS E OF AREA.
…GALE WARNING…
.LOW 39N68W 1004 MB MOVING SE 05 KT. WITHIN 240 NM NW SEMICIRCLE
WINDS 25 TO 35 KT. SEAS 8 TO 13 FT. ELSEWHERE WITHIN 300 NM W
SEMICIRCLE AND FROM 40N TO 44N BETWEEN 60W AND 68W WINDS 20 TO 30
KT. SEAS TO 12 FT.
.24 HOUR FORECAST LOW 38N66W 1003 MB. WITHIN 360 NM W AND NW
QUADRANTS…AND FROM 39N TO 44N BETWEEN 54W AND 66W WINDS 25 TO
40 KT. SEAS 9 TO 17 FT.
.48 HOUR FORECAST LOW 35N66W 1006 MB. FROM 37N TO 42N BETWEEN 60W
AND 72W WINDS 25 TO 35 KT. SEAS 8 TO 15 FT. ELSEWHERE WITHIN 360
NM W QUADRANT WINDS 20 TO 30 KT. SEAS 8 TO 14 FT.
…GALE WARNING…
.48 HOUR FORECAST NEW LOW 39N56W 1007 MB. FROM 38N TO 43N BETWEEN
47W AND 60W WINDS 25 TO 35 KT. SEAS 8 TO 15 FT.
.SYNOPSIS AND FORECAST.
.DENSE FOG. 24 HOUR FORECAST VSBY OCCASIONALLY LESS THAN 1 NM
FROM 56N TO 60N BETWEEN 35W AND 43W.
.24 HOUR FORECAST DENSE FOG WITHIN 120 NM OF 47N37W.
.48 HOUR FORECAST CONDITIONS IMPROVED.
.FORECASTER HUFFMAN. OCEAN PREDICTION CENTER.
NWS NATIONAL HURRICANE
