FZNT01 KWBC 200410
HSFAT1 0430
HIGH SEAS FORECAST FOR METAREA IV
NWS OCEAN PREDICTION CENTER WASHINGTON DC
0430 UTC TUE AUG 20 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SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS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 0000 UTC AUG 20.
24 HOUR FORECAST VALID 0000 UTC AUG 21.
48 HOUR FORECAST VALID 0000 UTC AUG 22.
.WARNINGS.
…HURRICANE WARNING…
.HURRICANE ERNESTO NEAR 45.7N 53.1W 973 MB AT 0300 UTC AUG 20
MOVING NE OR 050 DEG AT 30 KT. MAXIMUM SUSTAINED WINDS 70 KT
GUSTS 85 KT. TROPICAL STORM FORCE WINDS WITHIN 180 NM NE
QUADRANT…190 NM SE QUADRANT…140 NM SW QUADRANT…AND 70 NM
NW QUADRANT. SEAS 12 FT OR GREATER WITHIN 180 NM NE
QUADRANT…330 NM SE QUADRANT…300 NM SW QUADRANT…AND 200 NM
NW QUADRANT WITH SEAS TO 49 FT. ELSEWHERE FROM 37N TO 49N BETWEEN
45W AND 61W WINDS 20 TO 33 KT. SEAS TO 12 FT.
.12 HOUR FORECAST TROPICAL STORM ERNESTO NEAR 48.0N 47.2W.
MAXIMUM SUSTAINED WINDS 60 KT GUSTS 75 KT.
.24 HOUR FORECAST POST-TROPICAL CYCLONE ERNESTO NEAR 50.6N
36.3W. MAXIMUM SUSTAINED WINDS 50 KT GUSTS 60 KT. TROPICAL STORM
FORCE WINDS WITHIN 110 NM NE QUADRANT…200 NM SE QUADRANT…160
NM SW QUADRANT…AND 0 NM NW QUADRANT. SEAS 12 FT OR GREATER
WITHIN 0 NM NE…180 NM SE…540 NM SW…AND 0 NM NW QUADRANTS
WITH SEAS TO 26 FT. ELSEWHERE FROM 41N TO 54N E OF 45W WINDS 20
TO 33 KT. SEAS TO 12 FT.
.36 HOUR FORECAST POST-TROPICAL CYCLONE ERNESTO NEAR 52.8N
24.1W. MAXIMUM SUSTAINED WINDS 45 KT GUSTS 55 KT.
.48 HOUR FORECAST…DISSIPATED.
…GALE WARNING…
.LOW 61N41W 995 MB MOVING E 15 KT. WITHIN 180 SE SEMICIRCLE AND
360 W QUADRANT WINDS 20 TO 30 KT. SEAS TO 12 FT.
.06 HOUR FORECAST LOW 61N39W 992 MB. FROM 59N TO 62N BETWEEN 46W
AND 51W WINDS 25 TO 35 KT. SEAS TO 12 FT.
.18 HOUR FORECAST LOW E OF AREA 60N32W 987 MB. FROM 61N TO 64N
BETWEEN 38W AND 42W WINDS 25 TO 35 KT. SEAS 8 TO 13 FT.
.24 HOUR FORECAST LOW E OF AREA 61N30W 980 MB. N OF 55N E OF
43W…AND FROM 56N TO 59N BETWEEN 43W AND 56W WINDS 20 TO 30 KT.
SEAS TO 12 FT.
.48 HOUR FORECAST LOW AND CONDITIONS WELL E OF AREA.
…GALE WARNING…
.LOW 65N63W 1000 MB. WITHIN 300 NM WINDS TO 25 KT. SEAS LESS THAN
8 FT.
.06 HOUR FORECAST LOW 63N58W 999 MB. N OF 65N W OF 59W WINDS 25
TO 35 KT. SEAS TO 9 FT.
.24 HOUR FORECAST LOW DISSIPATED. N OF 62N W OF 52W AREA OF N TO
NW WINDS 20 TO 30 KT. SEAS TO 8 FT.
.48 HOUR FORECAST N OF 54N BETWEEN 43W AND 55W AREA OF N TO NW
WINDS 20 TO 30 KT. SEAS TO 9 FT.
.SYNOPSIS AND FORECAST.
.LOW 56N50W 998 MB MOVING NE 25 KT. WITHIN 540 NM SE SEMICIRCLE
AND 180 NW QUADRANT WINDS 20 TO 30 KT. SEAS TO 10 FT.
.24 HOUR FORECAST LOW AND CONDITIONS ABSORBED BY LOW 61N30W
DESCRIBED IN WARNINGS SECTION ABOVE.
.FROM 33N TO 42N BETWEEN 65W AND 75W AREA OF SW WINDS 20 TO 30
KT. SEAS TO 10 FT.
.24 HOUR FORECAST NEW LOW 47N63W 1006 MB. WITHIN THE GULF OF
SAINT LAWRENCE AND WITHIN 300 NM SE OF A LINE FROM 50N54W TO
47N60W TO 36N72W WINDS 20 TO 30 KT. SEAS TO 10 FT…HIGHEST
NEAR 40N64W.
.48 HOUR FORECAST LOW DISSIPATED AND CONDITIONS DIMINISHED.
.24 HOUR FORECAST NEW LOW 50N54W 1008 MB. WITHIN 240 NM S AND W
QUADRANTS WINDS 20 TO 30 KT. SEAS TO 10 FT.
.48 HOUR FORECAST NEW LOW E OF AREA 51N33W 1006 MB. FROM 45N TO
50N E OF 47W WINDS 20 TO 30 KT. SEAS TO 11 FT.
.DENSE FOG. VSBY OCCASIONALLY LESS THAN 1 NM N OF 41N W OF
64W…INCLUDING THE BAY OF FUNDY…FROM 43N TO 52N BETWEEN 47W
AND 62W…INCLUDING THE GULF OF SAINT LAWRENCE…AND FROM 55N TO
58N BETWEEN 39W AND 44W.
.24 HOUR FORECAST DENSE FOG N OF 43N W OF 63W…INCLUDING THE BAY
OF FUNDY…AND WITHIN 180 NM SE OF A LINE FROM 47N58W TO 54N35W.
.48 HOUR FORECAST DENSE FOG FROM 45N TO 49N BETWEEN 42W AND
56W.
.FORECASTER ANDERSON. 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 0000 UTC TUE AUG 20.
24 HOUR FORECAST VALID 0000 UTC WED AUG 21.
48 HOUR FORECAST VALID 0000 UTC THU AUG 22.
.WARNINGS.
.NONE.
.SYNOPSIS AND FORECAST.
.CARIBBEA
