920
FZNT01 KWBC 232220
HSFAT1

HIGH SEAS FORECAST FOR METAREA IV
NWS OCEAN PREDICTION CENTER WASHINGTON DC
2230 UTC MON SEP 23 2024

CCODE/2:31:04:11:00/AOE+AOW/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SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS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).

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 1800 UTC SEP 23.
24 HOUR FORECAST VALID 1800 UTC SEP 24.
48 HOUR FORECAST VALID 1800 UTC SEP 25.

.WARNINGS.

...GALE WARNING...
.LOW 36N66W 1004 MB MOVING SE 10 KT. WITHIN 90 NM NW OF LINE
FROM 36N68W TO 39N64W WINDS 25 TO 35 KT. SEAS 12 TO 16 FT.
ELSEWHERE WIHTIN 560 NM NW OF LINE FROM 31N68W TO 38N59W WINDS
TO 25 KT. SEAS 8 TO 12 FT.
.24 HOUR FORECAST LOW MERGED WITH LOW AT 59N57W. CONDITIONS
DESCRIBED IN GALE WARNING BELOW.

...GALE WARNING...
.NEW LOW 39N57W 1004 MB NEARLY STATIONARY. WIHTIN 90 NM N OF
LINE FROM 40N62W TO 40N59W WINDS 25 TO 40 KT. SEAS 12 TO 15 FT.
ELSEWHERE WITHIN 420 NM N OF LINE FROM 38N59W TO 39N42W WINDS TO
25 KT. SEAS 8 TO 12 FT.
.24 HOUR FORECAST LOW 39N59W 1003 MB. WITHIN 180 NM NW OF LINE
FROM 38N60W TO 40N53W WINDS 35 TO 45 KT. SEAS 10 TO 20 FT.
ELSEWHERE WITHIN 480 NM NW OF LINE FROM 31N67W TO 39N48W WINDS
25 TO 35 KT. SEAS 8 TO 14 FT.
.48 HOUR FORECAST LOW 37N57W 999 MB. WITHIN 90 NM NW OF LINE
FROM 38N59W TO 40N50W WINDS 30 TO 40 KT. SEAS 12 TO 22 FT. FROM
32N TO 45N BETWEEN 43W AND 73W WINDS 20 TO 30 KT. SEAS 8 TO 16
FT.

...GALE WARNING...
.LOW 50N34W 991 MB DRIFTING SW 05 KT. WITHIN 90 NM W SEMICIRCLE
WINDS 25 TO 40 KT. SEAS 12 TO 15 FT. ELSEWHERE FROM 43N TO 53N E
OF 60W WINDS TO 25 KT. SEAS 8 TO 12 FT.
.24 HOUR FORECAST LOW 51N37W 995 MB. WITHIN 360 NM W SEMICIRCLE
WINDS 30 TO 40 KT. SEAS 12 TO 20 FT. ELSEWHERE FROM 42N TO 58N E
OF 51W WINDS 20 TO 30 KT. SEAS 8 TO 14 FT.
.48 HOUR FORECAST LOW WELL E OF AREA. FROM 39N TO 53N E OF 53W
WINDS LESS THAN 25 KT. SEAS TO 12 FT.

.SYNOPSIS AND FORECAST.

.LOW 32N56W 1006 MB MOVING NE 20 KT. S OF 35N BETWEEN 51W AND
56W WINDS TO 25 KT. SEAS TO 9 FT.
.24 HOUR FORECAST LOW 38N50W 1008 MB. WITHIN 180 NM OF CENTER
WINDS TO 25 KT. SEAS TO 10 FT.
.48 HOUR FORECAST LOW MERGED WITH LOW AT 37N57W.

.LOW 35N44W 1014 MB MOVING NE 35 KT. S OF 39N E OF 42W WINDS TO
25 KT. SEAS TO 10 FT.
.24 HOUR FORECAST LOW WELL E OF AREA. FROM 35N TO 41N E OF 40W
WINDS TO 25 KT. SEAS TO 11 FT.
.48 HOUR FORECAST CONDITIONS MOVE E OF AREA.

.FORECASTER POCHE. 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 MON SEP 23.
24 HOUR FORECAST VALID 1800 UTC TUE SEP 24.
48 HOUR FORECAST VALID 1800 UTC WED SEP 25.

.WARNINGS.

...CARIBBEAN AND GULF OF MEXICO HURRICANE WARNING...
.POTENTIAL TROPICAL CYCLONE NINE NEAR 18.1N 82.2W 1003 MB AT
2100 UTC SEP 23 MOVING NNW OR 345 DEG AT 6 KT. MAXIMUM SUSTAINED
WINDS 30 KT GUSTS 40 KT. WITHIN 19N79W TO 20N81W TO 19N83W TO
19N81W TO 16N82W TO 16N80W TO 19N79W WINDS 20 TO 30 KT. SEAS TO
8 FT.
.12 HOUR FORECAST TROPICAL STORM NINE NEAR 19.0N 83.0W. MAXIMUM
SUSTAINED WINDS 35 KT GUSTS 45 KT.
.24 HOUR FORECAST TROPICAL STORM NINE NEAR 19.9N 84.2W. MAXIMUM
SUSTAINED WINDS 45 KT GUSTS 55 KT. TROPICAL STORM FORCE WINDS
WITHIN 60 NM W SEMICIRCLE...140 NM NE QUADRANT AND 130 NM SE
QUADRANT. SEAS 12 FT OR GREATER WITHIN 210 NM NE AND 0 NM SW
SEMICIRCLES WITH SEAS TO 16 FT. ELSEWHERE WITHIN 19N79W TO 22N81W
TO 22N83W TO 19N82W TO 19N85W TO 16N81W TO 19N79W WINDS 20 TO 33
KT. SEAS TO 12 FT IN SE TO S SWELL. REMAINDER OF AREA WITHIN
22N81W TO 22N85W TO 21N86W TO 20N87W TO 19N85W TO 19N79W TO
22N81W...INCLUDING IN YUCATAN CHANNEL...WINDS 20 KT OR LESS. SEAS
8 TO 11 FT IN E TO SE SWELL.
.48 HOUR FORECAST HURRICANE NINE NEAR 23.0N 86.0W. MAXIMUM
SUSTAINED WINDS 75 KT GUSTS 90 KT. TROPICAL STORM FORCE WINDS
WITHIN 200 NM NE QUADRANT...190 NM SE QUADRANT...110 NM SW
QUADRANT...AND 130 NM NW QUADRANT. SEAS 12 FT OR GREATER 240 NM
NE QUADRANT...360 NM SE QUADRANT...180 NM SW QUADRANT...AND 210
NM NW QUADRANT WITH SEAS TO 21 FT. ELSEWHERE WITHIN 22N82W TO
27N83W TO 25N88W TO 20N87W TO 17N82W TO 20N79W TO 22N82W...
INCLUDING STRAITS OF FLORIDA AND IN YUCATAN CHANNEL...WINDS 20 TO
33 KT. SEAS TO 14 FT IN SE SWELL. REMAINDER OF AREA WITHIN
26N85W TO 25N88W TO 23N90W TO 18N86W TO 18N81W TO 20N79W TO
26N85W WINDS 20 KT OR LESS. SEAS 8 TO 10 FT IN MIXED SWELL.

FORECAST WINDS IN AND NEAR ACTIVE TROPICAL CYCLONES SHOULD BE
USED WITH CAUTION DUE TO UNCERTAINTY IN FORECAST TRACK...SIZE
AND INTENSITY.

.SYNOPSIS AND FORECAST.

.ATLC WITHIN 31N69.5W TO 31N70.5W TO 31N69.5W WINDS 20 KT OR
LESS. SEAS 8 FT IN N SWELL.
.24 HOUR FORECAST WITHIN 31N67W TO 31N75W TO 30N74W TO 29N70W TO
30N66W TO 31N67W WINDS 20 KT OR LESS. SEAS 8 TO 9 FT IN N TO NE
SWELL.
.36 HOUR FORECAST CONDITIONS IMPROVE. WINDS 20 KT OR LESS. SEAS
LESS THAN 8 FT.

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

$$
.FORECASTER STRIPLING. NATIONAL HURRICANE CENTER.