FZNT01 KWBC 170413
HSFAT1 0430
HIGH SEAS FORECAST FOR METAREA IV
NWS OCEAN PREDICTION CENTER WASHINGTON DC
0430 UTC SAT AUG 17 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SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS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 17.
24 HOUR FORECAST VALID 0000 UTC AUG 18.
48 HOUR FORECAST VALID 0000 UTC AUG 19.
.WARNINGS.
…HURRICANE WARNING…
.HURRICANE ERNESTO NEAR 31.4N 65.2W 969 MB AT 0300 UTC AUG 17
MOVING NNE OR 030 DEG AT 11 KT. MAXIMUM SUSTAINED WINDS 80 KT
GUSTS 100 KT. TROPICAL STORM FORCE WINDS WITHIN 160 NM NE
QUADRANT…240 NM SE QUADRANT…110 NM SW QUADRANT…AND 130 NM
NW QUADRANT. SEAS 12 FT OR GREATER WITHIN 300 NM NW AND SE
QUADRANTS…240 NM NE QUADRANT AND 270 NM SW QUADRANT WITH SEAS
TO 43 FT. ELSEWHERE FROM 31N TO 36N BETWEEN 59W AND 72W WINDS 20
TO 33 KT. SEAS TO 12 FT.
.24 HOUR FORECAST HURRICANE ERNESTO NEAR 33.7N 64.1W. MAXIMUM
SUSTAINED WINDS 70 KT GUSTS 85 KT. TROPICAL STORM FORCE WINDS
WITHIN 180 NM NE QUADRANT…190 NM SE QUADRANT…110 NM SW
QUADRANT…AND 120 NM NW QUADRANT. SEAS 12 FT OR GREATER
WITHIN 360 NM NE AND 330 NM NW QUADRANTS…AND 300 NM S
SEMICIRCLE WITH SEAS TO 37 FT. ELSEWHERE FROM 31N TO 38N BETWEEN
57W AND 70W WINDS 20 TO 33 KT. SEAS TO 12 FT.
.48 HOUR FORECAST HURRICANE ERNESTO NEAR 38.1N 61.9W. MAXIMUM
SUSTAINED WINDS 80 KT GUSTS 100 KT. TROPICAL STORM FORCE WINDS
WITHIN 150 NM NE QUADRANT…170 NM SE QUADRANT…110 NM SW
QUADRANT…AND 100 NM NW QUADRANT. SEAS 12 FT OR GREATER
WITHIN 300 NM OF CENTER EXCEPT 360 NM NE QUADRANT WITH SEAS TO
43 FT. ELSEWHERE FROM 32N TO 42N BETWEEN 54W AND 69W WINDS 20 TO
33 KT. SEAS TO 12 FT.
…GALE WARNING…
.LOW E OF AREA 61N29W 988 MB MOVING NE 30 KT. WITHIN 300 NM SW
QUADRANT WINDS 25 TO 35 KT. SEAS 12 TO 18 FT. ELSEWHERE FROM 55N
TO 60N E OF 39W WINDS 20 TO 30 KT. SEAS 8 TO 14 FT.
.18 HOUR FORECAST LOW AND CONDITIONS MOVED E OF AREA.
…GALE WARNING…
.LOW 60N44W 993 MB MOVING E 10 KT. WITHIN 180 NM SW SEMICIRCLE
WINDS 25 TO 35 KT. SEAS 8 TO 15 FT.
.24 HOUR FORECAST LOW 60N39W 995 MB. WITHIN 180 NM SW
QUADRANT…AND FROM 60N TO 64N BETWEEN 49W AND 55W WINDS 25 TO
35 KT. SEAS 8 TO 13 FT. ELSEWHERE FROM 57N TO 60N BETWEEN 35W
AND 45W…AND FROM 56N TO 65N BETWEEN 45W AND 56W WINDS 20 TO 30
KT. SEAS TO 10 FT.
.48 HOUR FORECAST LOW E OF AREA NEAR 60N35W 995 MB. WITHIN 180
NM SW OF A LINE FROM 61N49W TO 58N40W WINDS 25 TO 35 KT. SEAS 9
TO 15 FT.
.SYNOPSIS AND FORECAST.
.LOW 43N43W 1017 MB MOVING NE 15 KT. FRONT FROM LOW TO 46N35W.
WITHIN 240 NM SE QUADRANT AND 180 NM SE OF FRONT WINDS TO 25 KT.
SEAS LESS THAN 8 FT.
.24 HOUR FORECAST LOW 46N36W 1017 MB. WITHIN 240 NM S AND SW
QUADRANTS WINDS TO 25 KT. SEAS TO 8 FT.
.48 HOUR FORECAST LOW AND CONDITIONS MOVED E OF AREA.
.24 HOUR FORECAST LOW 46N52W 1014 MB. WITHIN 240 NM SW QUADRANT
WINDS TO 25 KT. SEAS TO 8 FT.
.48 HOUR FORECAST LOW DISSSIPATED WITH CONDITIONS DIMINISHED.
.FORECASTER ROWLAND. 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 0000 UTC SAT AUG 17.
24 HOUR FORECAST VALID 0000 UTC SUN AUG 18.
48 HOUR FORECAST VALID 0000 UTC MON AUG 19.
.WARNINGS.
…ATLC HURRICANE WARNING…
.HURRICANE ERNESTO NEAR 31.4N 65.2W 969 MB AT 0300 UTC AUG 17
MOVING NNE OR 030 DEG AT 11 KT. MAXIMUM SUSTAINED WINDS 80 KT
GUSTS 100 KT. TROPICAL STORM FORCE WINDS WITHIN 160 NM NE
QUADRANT…240 NM SE QUADRANT…110 NM SW QUADRANT…AND 130 NM
NW QUADRANT. SEAS 12 FT OR GREATER WITHIN 300 NM NW AND SE
QUADRANTS…240 NM NE QUADRANT AND 270 NM SW QUADRANT WITH SEAS
TO 43 FT. ELSEWHERE OVER FORECAST WATERS WITHIN 29N59W TO 31N59W
TO 31N70W TO 26N65W TO 26N63W TO 29N59W WINDS 20 TO 33 KT. SEAS
8 TO 12 FT. REMAINDER OF AREA WITHIN 31N57W TO 28N68W TO 31N77W
TO 27N74W TO 24N66W TO 26N60W TO 31N57W WINDS 20 KT OR LESS. SEAS
8 TO 11 FT IN MIXED SWELL.
.24 HOUR FORECAST HURRICANE ERNESTO N OF THE AREA NEAR 33.7N
64.1W. MAXIMUM SUSTAINED WINDS 70 KT GUSTS 85 KT. TROPICAL STORM
FORCE WINDS WITHIN 180 NM NE QUADRANT…190 NM SE QUADRANT…110
NM SW QUADRANT…AND 120 NM NW QUADRANT. OVER FORECAST WATERS
WITHIN 31N58W TO 31N67W TO 30N65W TO 30N60W TO 31N58W SW WINDS
20 TO 30 KT. SEAS 12 TO 14 FT. ELSEWHERE WITHIN 31N56W TO 30N65W
TO 31N68W TO 31N74W TO 26N66W TO 27N61W TO 31N56W WINDS 20 KT OR
LESS. SEAS 8 TO 12 FT IN MIXED SWELL.
.48 HOUR FORECAST HURRICANE ERNESTO N OF THE AREA NEAR 38.1N
61.9W. MAXIMUM SUSTAINED WINDS 80 KT GUSTS 100 KT. OVER FORECAST
WATERS WITHIN 31N56W TO 31N63W TO 30N61W TO 30N59W TO 31N56W
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.
.CARIBBEAN WITHIN 13N69W TO 12N71W TO 13N72W TO 11N73W TO 11N72W
TO 11N70W TO 13N69W…INCLUDING THE GULF OF VENEZUELA…NE TO E
WINDS 20 TO 25 KT. SEAS LESS THAN 8 FT.
.06 HOUR FORECAST CONDITIONS IMPROVE. WINDS 20 KT OR LESS. SEAS
LESS THAN 8 FT.
.24 HOUR FORECAST LITTLE CHANGE.
.42 HOUR FORECAST WITHIN 13N68W TO 13N70W TO 13N71W TO 11N71W
TO 12N70W TO 11N68W TO 13N68W…INCLUDING THE GULF OF
VENEZUELA…
E WINDS 20 TO 25 KT. SEAS LESS THAN 8 FT.
.48 HOUR FORECAST WITHIN 13N69W TO 14
