FZNT01 KWBC 152136
HSFAT1 2230
HIGH SEAS FORECAST FOR METAREA IV
NWS OCEAN PREDICTION CENTER WASHINGTON DC
2230 UTC THU AUG 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SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS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).
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 1800 UTC AUG 15.
24 HOUR FORECAST VALID 1800 UTC AUG 16.
48 HOUR FORECAST VALID 1800 UTC AUG 17.
.WARNINGS.
.SEE PART II FOR MORE INFORMATION ON HURRICANE ERNESTO.
…STORM WARNING…
.LOW 61N42W 990 MB MOVING E 10 KT. FROM 52N TO 60N E OF 43W AND
WITHIN 120 NM N AND NE OF A LINE FROM 57N42W TO 60N49W TO W
GREENLAND WINDS 30 TO 40 KT. SEAS 9 TO 17 FT. ELSEWHERE FROM 50N
TO 60N E OF 50W AND FROM 60N TO 66N E OF 54W TO W GREENLAND WINDS
20 TO 30 KT. SEAS 8 TO 12 FT.
.18 HOUR FORECAST LOW 60N40W 987 MB. FROM 58N TO 60N BETWEEN 37W
AND 43W AND WITHIN 90 NM N AND NE OF A LINE FROM 58N43W TO 60N48W
TO W GREENLAND WINDS 35 TO 50 KT. SEAS 10 TO 21 FT…HIGHEST NEAR
60N39W.
.24 HOUR FORECAST LOW JUST E OF THE AREA 60N34W 988 MB. WITHIN
240 NM SW SEMICIRCLE WINDS 35 TO 50 KT. SEAS 13 TO 25
FT…HIGHEST NEAR 60N35W. ELSEWHERE WITHIN 120 NM N AND NE OF A
LINE FROM 58N40W TO 59N47W WINDS 25 TO 40 KT. SEAS 8 TO 18 FT.
ALSO FROM 54N TO 61N E OF 41W WINDS 20 TO 30 KT. SEAS 8 TO 14 FT
IN MIXED SWELL.
.48 HOUR FORECAST LOW WELL E OF THE AREA WITH NEW LOW TO FORM
NEAR 60N41W 999 MB. FROM 57N TO 60N BETWEEN 40W AND 43W AND
WITHIN 120 NM N AND NE OF A LINE FROM 57N43W TO 59N50W WINDS 25
TO 35 KT. SEAS 8 TO 14 FT. ELSEWHERE FROM 56N TO 59N E OF 40W AND
FROM 60N TO 66N E OF 58W TO W GREENLAND WINDS 20 TO 30 KT. SEAS
TO 10 FT.
.SYNOPSIS AND FORECAST.
.COMPLEX LOW WITH ONE CENTER 45N40W 1016 MB MOVING NE 20 KT AND
A SECOND CENTER 42N45W 1016 MB MOVING NE 15 KT. WITHIN 180 NM SE
AND S OF A FRONT FROM 46N35W TO THE FIRST LOW TO THE SECOND LOW
TO 40N48W TO 36N56W TO 35N62W WINDS TO 25 KT. SEAS TO 8 FT.
.24 HOUR FORECAST COMPLEX LOW WITH MAIN CENTER 40N48W 1016 MB.
WITHIN 180 NM SE AND S OF A LINE FROM 45N38W TO 41N49W TO 38N61W
WINDS TO 25 KT. SEAS TO 9 FT.
.48 HOUR FORECAST LOW 46N39W 1016 MB. WITHIN 240 NM SE SEMICIRCLE
AND FROM 41N TO 45N BETWEEN 51W AND 56W WINDS TO 25 KT. SEAS TO 9
FT.
.24 HOUR FORECAST WITHIN 60 NM NE AND E OF A LINE FROM 65N52W TO
65N57W TO 67N61W AREA OF NW WINDS TO 25 KT. SEAS TO 8 FT.
.48 HOUR FORECAST CONDITIONS DESCRIBED ABOVE IN WARNINGS SECTION
WITH NEW LOW 60N41W.
.24 HOUR FORECAST WITHIN 120 NM W AND NW OF A LINE FROM 50N56W TO
52N53W AND WITHIN 120 NM N OF A LINE FROM 52N53W TO 51N42W AREA
OF SW WINDS TO 25 KT. SEAS TO 8 FT.
.48 HOUR FORECAST NEW LOW 53N55W 1005 MB. WITHIN 360 NM SW
QUADRANT…INCLUDING THE E GULF OF SAINT LAWRENCE AND WITHIN 180
NM N OF A LINE FROM 50N55W TO 51N35W WINDS TO 25 KT. SEAS
TO 8 FT…EXCEPT LESS THAN 8 FT IN THE GULF OF SAINT LAWRENCE.
.24 HOUR FORECAST…EXCEPT WHERE DESCRIBED IN PART II BELOW WITH
HURRICANE ERNESTO…FROM 31N TO 34N BETWEEN 60W AND 74W WINDS 20
TO 33 KT. SEAS 9 TO 18 FT.
.48 HOUR FORECAST…EXCEPT WHERE DESCRIBED IN PART II BELOW WITH
HURRICANE ERNESTO…FROM 31N TO 37N BETWEEN 57W AND 71W WINDS 20
TO 33 KT. SEAS 10 TO 20 FT.
.FORECASTER FUTTERMAN. OCEAN PREDICTION CENTER.
NWS NATIONAL HURRICANE CENTER MIAMI FL
ATLANTIC FROM 07N TO 31N W OF 35W INCLUDING CARIBBEAN SEA AND
GULF OF MEXICO
SYNOPSIS VALID 1800 UTC THU AUG 15.
24 HOUR FORECAST VALID 1800 UTC FRI AUG 16.
48 HOUR FORECAST VALID 1800 UTC SAT AUG 17.
.WARNINGS.
…ATLC HURRICANE WARNING…
.HURRICANE ERNESTO NEAR 26.1N 68.9W 972 MB AT 2100 UTC AUG 15
MOVING N OR 360 DEG AT 11 KT. MAXIMUM SUSTAINED WINDS 75 KT GUSTS
90 KT. TROPICAL STORM FORCE WINDS WITHIN 150 NM NE QUADRANT…
230 NM SE QUADRANT…110 NM SW QUADRANT…AND 130 NM NW QUADRANT.
SEAS 12 FT OR GREATER WITHIN 270 NM NE QUADRANT…240 NM SE
QUADRANT…150 NM SW QUADRANT…AND 210 NM NW QUADRANT WITH SEAS
TO 34 FT. ELSEWHERE WITHIN 28N65W TO 29N70W TO 27N73W TO 23N72W
TO 22N66W TO 24N64W TO 28N65W WINDS 20 TO 33 KT. SEAS 8 TO 12 FT.
REMAINDER OF AREA WITHIN 27N63W TO 31N69W TO 30N73W TO 23N75W TO
20N68W TO 22N64W TO 27N63W…INCLUDING ATLANTIC EXPOSURES…
WINDS 20 KT OR LESS. SEAS 8 TO 11 FT IN MIXED SWELL.
.24 HOUR FORECAST HURRICANE ERNESTO NEAR 29.5N 66.9W. MAXIMUM
SUSTAINED WINDS 95 KT GUSTS 115 KT. TROPICAL STORM FORCE WINDS
WITHIN 160 NM NE QUADRANT…170 NM SE QUADRANT…130 NM SW
QUADRANT…AND 140 NM NW QUADRANT. SEAS 12 FT OR GREATER WITHIN
300 NM N SEMICIRCLE…240 NM SE QUADRANT…AND 180 NM SW QUADRANT
WITH SEAS TO 43 FT. ELSEWHERE WITHIN 31N61W TO 31N73W TO 25N69W
TO 24N65W TO 28N61W TO 31N61W WINDS 20 TO 33 KT. SEAS 8 TO 12 FT.
REMAINDER OF AREA WITHIN 31N60W TO 28N71W TO 31N73W TO 31N80W TO
24N73W TO 25N62W TO 31N60W…INCLUDING ATLANTIC EXPOSURES…
WINDS 20 KT OR LESS. SEAS 8 TO 11 FT IN MIXED SWELL.
.48 HOUR FORECAST HURRICANE ERNESTO N OF AREA NEAR 32.9N 65.2W.
MAXIMUM SUSTAINED WINDS 80 KT GUSTS 100 KT. TROPICAL STORM FORCE
WINDS WITHIN 170 NM E SEMICIRCLE…120 NM SW QUADRANT AND 150 NM
NW QUADRANT. SEAS 12 FT OR GREATER WITHIN 270 NM OF CENTER…
EXCEPT 330 NM NE QUADRANT WITH SEAS TO 35 FT N OF AREA.
ELSEWHERE WITHIN 31N59W TO 31N70W TO 27N63W TO 28N61W TO 31N59W
WINDS 20 TO 33 KT. SEAS 8 TO 12 FT. REMAINDER OF AREA WITHIN
31N55W TO 29N65W TO 31N70W TO 31N78W TO 27N78W TO 23N64W TO
31N55W…INCLUDING ATLANTIC EXPOSURES…WINDS 20 KT OR LESS. SEAS
8 TO 11 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.
.CARIBBEAN WITHIN 14N68W TO 15N70W TO 14N71W TO 12N70W TO 12N69W
TO 13N68W TO 14N68W E TO SE WINDS 20 TO 25 KT. SEAS LESS THAN 8
FT.
.12 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 LEWITSKY. NATIONAL HURRICANE CENTER.
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UUID 7262DE3E-5B4E-11EF-84E6-0AFB0B270000 TX 1
