High Seas Forecast
Issued by NWS

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000
FZNT01 KWBC 251538
HSFAT1

HIGH SEAS FORECAST FOR METAREA IV
NWS OCEAN PREDICTION CENTER WASHINGTON DC
1630 UTC MON SEP 25 2017

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SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS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

ATLANTIC ICEBERG ANALYSIS AND OUTLOOK PRODUCTS...COURTESY OF
THE U.S. COAST GUARD INTERNATIONAL ICE PATROL...CAN BE FOUND
ON THE OCEAN PREDICTION CENTER WEB PAGE AT
HTTP://WWW.OPC.NCEP.NOAA.GOV/ATL_TAB.SHTML(LOWERCASE).

PAN PAN

NORTH ATLANTIC NORTH OF 31N TO 67N AND WEST OF 35W

SYNOPSIS VALID 1200 UTC SEP 25
24 HOUR FORECAST VALID 1200 UTC SEP 26
48 HOUR FORECAST VALID 1200 UTC SEP 27

.WARNINGS.

.FOR INFORMATION ON HURRICANE MARIA AND HURRICANE LEE SEE PART 2
BELOW.

...STORM WARNING...
.LOW E OF AREA 59N31W 980 MB MOVING NW 20 KT. OVER FORECAST
WATERS WITHIN 300 NM SW QUADRANT AND NE OF A LINE FROM 62N35W TO
64N40W WINDS 25 TO 40 KT. SEAS 8 TO 16 FT.
.24 HOUR FORECAST LOW 62N47W 982 MB. N OF A LINE FROM 64N40W TO
65N35W WINDS 40 TO 55 KT. SEAS 16 TO 28 FT. ELSEWHERE WITHIN 360
NM NE...300 NM SE...420 NM SW...AND 480 NM NW QUADRANTS WINDS 25
TO 40 KT. SEAS 8 TO 16 FT.
.48 HOUR FORECAST LOW 64N56W 995 MB. N OF 60N BETWEEN 55W AND
61W WINDS 25 TO 40 KT. SEAS 11 TO 18 FT.

...GALE WARNING...
.24 HOUR FORECAST LOW INLAND 50N57W 1002 MB. FROM 45N TO 50N
BETWEEN 50W AND 65W WINDS 20 TO 30 KT. SEAS TO 8 FT.
.30 HOUR FORECAST LOW 49N51W 998 MB. WITHIN 120 NM E AND 240 NM
S QUADRANTS WINDS 25 TO 35 KT. SEAS TO 12 FT.
.48 HOUR FORECAST LOW 48N40W 998 MB. OVER FORECAST WATERS FROM
40N TO 49N E OF 48W WINDS 25 TO 40 KT. SEAS 8 TO 14 FT.

...GALE WARNING...
.48 HOUR FORECAST NEW LOW 58N47W 990 MB. WITHIN 120 NM N...420
NM SW...AND 660 NM NW QUADRANTS WINDS 25 TO 40 KT. SEAS 10 TO 20
FT.

.SYNOPSIS AND FORECAST.

.EXCEPT WHERE NOTED IN PART 2 BELOW WITH HURRICANE MARIA FROM
31N TO 36N BETWEEN 65W AND 80W WINDS 20 TO 33 KT. SEAS 8 TO 12
FT.
.24 HOUR FORECAST EXCEPT WHERE NOTED IN PART 2 BELOW WITH
HURRICANE MARIA FROM 31N TO 38N BETWEEN 64W AND 79W WINDS 20 TO
33 KT. SEAS 8 TO 12 FT.
.48 HOUR FORECAST EXCEPT WHERE NOTED IN PART 2 BELOW WITH
HURRICANE MARIA FROM 31N TO 39N BETWEEN 65W AND 78W WINDS 20 TO
33 KT. SEAS 8 TO 12 FT.

.EXCEPT WHERE NOTED IN PART 2 BELOW WITH HURRICANE LEE FROM 31N
TO 33N BETWEEN 47W AND 52W WINDS 20 TO 33 KT. SEAS 8 TO 12 FT.
.24 HOUR FORECAST EXCEPT WHERE NOTED IN PART 2 BELOW WITH
HURRICANE LEE FROM 31N TO 34N BETWEEN 50W AND 55W WINDS 20 TO 33
KT. SEAS 8 TO 12 FT.
.48 HOUR FORECAST EXCEPT WHERE NOTED IN PART 2 BELOW WITH
HURRICANE LEE FROM 31N TO 34N BETWEEN 51W AND 58W WINDS 20 TO 33
KT. SEAS 8 TO 12 FT.

.LOW 62N42W 988 MB MOVING NE 10 KT. OVER FORECAST WATERS WITHIN
480 NM W AND 600 NM S QUADRANTS WINDS 20 TO 30 KT. SEAS TO 12
FT. .24 HOUR FORECAST LOW AND ASSOCIATED CONDITIONS ABSORBED BY
LOW 62N47W DESCRIBED IN WARNINGS SECTION ABOVE.

.POST-TROPICAL CYCLONE JOSE 39N68W 1016 MB NEARLY STATIONARY.
WINDS LESS THAN 25 KT. SEAS LESS THAN 8 FT.
.24 HOUR FORECAST POST-TROPICAL CYCLONE JOSE DISSIPATED.

.HIGH 35N59W 1023 MB DRIFTING N.
.24 HOUR FORECAST HIGH 37N59W 1021 MB.
.48 HOUR FORECAST LITTLE CHANGE.

.HIGH 42N49W 1021 MB MOVING SE 15 KT.
.24 HOUR FORECAST HIGH 38N45W 1021 MB.
.48 HOUR FORECAST HIGH 35N37W 1022 MB.

.FORECASTER KOSIER. 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 1200 UTC MON SEP 25.
24 HOUR FORECAST VALID 1200 UTC TUE SEP 26.
48 HOUR FORECAST VALID 1200 UTC WED SEP 27.

.WARNINGS.

...ATLC HURRICANE WARNING...
.HURRICANE MARIA NEAR 31.2N 72.9W 963 MB AT 1500 UTC SEP 25
MOVING N OR 360 DEG AT 6 KT. MAXIMUM SUSTAINED WINDS 70 KT GUSTS
85 KT. TROPICAL STORM FORCE WINDS WITHIN 200 NM E SEMICIRCLE AND
160 NM W SEMICIRCLE. SEAS 12 FT OR GREATER WITHIN 270 NM W
SEMICIRCLE...480 NM NE QUADRANT AND 360 NM SE QUADRANT WITH SEAS
TO 38 FT. ELSEWHERE OVER FORECAST WATERS N OF 26N BETWEEN 65W
AND 78W WINDS 20 TO 33 KT. SEAS 10 TO 12 FT. REMAINDER ATLC
WATERS N OF 22N NE OF BAHAMAS AND A LINE FROM 31N61W TO 22N70W
WINDS 20 KT OR LESS. SEAS 8 TO 11 FT IN MIXED SWELL. NUMEROUS
MODERATE ISOLATED STRONG WITHIN 180 NM E SEMICIRCLE. NUMEROUS
MODERATE WITHIN 150 NM W SEMICIRCLE.
.24 HOUR FORECAST HURRICANE MARIA NEAR 32.9N 73.1W. MAXIMUM
SUSTAINED WINDS 65 KT GUSTS 80 KT. LITTLE CHANGE IN RADIUS OF
TROPICAL STORM FORCE WINDS AND SEAS 12 FT OR GREATER. OVER
FORECAST WATERS N OF 28N BETWEEN 66W AND 78W WINDS 20 TO 33 KT.
SEAS 10 TO 12 FT. REMAINDER ATLC WATERS N OF 25N NE OF BAHAMAS
AND A LINE FROM 31N60W TO 25N68W WINDS 20 KT OR LESS. SEAS 8 TO
11 FT IN MIXED SWELL.
.48 HOUR FORECAST TROPICAL STORM MARIA NEAR 34.7N 73.0W. MAXIMUM
SUSTAINED WINDS 60 KT GUSTS 75 KT. LITTLE CHANGE IN RADIUS OF
TROPICAL STORM FORCE WINDS AND SEAS 12 FT OR GREATER. OVER
FORECAST WATERS N OF 30N BETWEEN 68W AND 77W WINDS 20 TO 33 KT.
SEAS 10 TO 12 FT. REMAINDER ATLC WATERS N OF 28N BETWEEN 65W AND
79W WINDS 20 KT OR LESS. SEAS 8 TO 10 FT IN MIXED SWELL.
.72 HOUR FORECAST TROPICAL STORM MARIA NEAR 35.7N 71.4W. MAXIMUM
SUSTAINED WINDS 60 KT GUSTS 75 KT.
EXTENDED OUTLOOK...USE FOR GUIDANCE ONLY...ERRORS MAY BE LARGE.
.96 HOUR FORECAST TROPICAL STORM MARIA NEAR 37.5N 64.5W. MAXIMUM
SUSTAINED WINDS 60 KT GUSTS 75 KT.
.120 HOUR FORECAST TROPICAL STORM MARIA NEAR 42.0N 52.0W.
MAXIMUM SUSTAINED WINDS 60 KT GUSTS 75 KT.

...ATLC HURRICANE WARNING...
.HURRICANE LEE NEAR 30.8N 49.9W 980 MB AT 1500 UTC SEP 25 MOVING
SSW OR 200 DEG AT 2 KT. MAXIMUM SUSTAINED WINDS 80 KT GUSTS 100
KT. TROPICAL STORM FORCE WINDS WITHIN 30 NM OF CENTER. SEAS 12
FT OR GREATER WITHIN 90 NM OF CENTER WITH SEAS TO 26 FT.
ELSEWHERE WITHIN 120 NM OF CENTER...EXCEPT 150 NM NW QUADRANT
WINDS 20 TO 33 KT. SEAS 10 TO 12 FT. REMAINDER OF AREA N OF 26N
BETWEEN 43W AND 55W WINDS 20 KT OR LESS. SEAS 8 TO 10 FT IN
MIXED SWELL.
.24 HOUR FORECAST HURRICANE LEE NEAR 30.6N 52.1W. MAXIMUM
SUSTAINED WINDS 80 KT GUSTS 100 KT. TROPICAL STORM FORCE WINDS
WITHIN 50 NM N SEMICIRCLE AND 40 NM S SEMICIRCLE. LITTLE CHANGE
IN SEAS 12 FT OR GREATER WITH SEAS TO 28 FT. ELSEWHERE WITHIN
120 NM OF CENTER...EXCEPT 150 NM NW QUADRANT WINDS 20 TO 33 KT.
SEAS 10 TO 12 FT. REMAINDER OF AREA N OF A LINE FROM 31N48W TO
26N50W TO 26N54W TO 31N60W WINDS 20 KT OR LESS. SEAS 8 TO 10 FT
IN MIXED SWELL.
.48 HOUR FORECAST HURRICANE LEE NEAR 31.5N 54.5W. MAXIMUM
SUSTAINED WINDS 85 KT GUSTS 105 KT. TROPICAL STORM FORCE WINDS
WITHIN 70 NM E SEMICIRCLE AND 60 NM W SEMICIRCLE. SEAS 12 FT OR
GREATER WITHIN 120 NM OF CENTER WITH SEAS TO 29 FT. ELSEWHERE
WITHIN 150 NM OF CENTER WINDS 20 TO 33 KT. SEAS 10 TO 12 FT.
REMAINDER OF AREA N OF A LINE FROM 31N49W TO 26N55W TO 26N60W TO
31N62W WINDS 20 KT OR LESS. SEAS 8 TO 10 FT IN MIXED SWELL.
.72 HOUR FORECAST HURRICANE LEE NEAR 33.4N 54.8W. MAXIMUM
SUSTAINED WINDS 80 KT GUSTS 100 KT.
EXTENDED OUTLOOK...USE FOR GUIDANCE ONLY...ERRORS MAY BE LARGE.
.96 HOUR FORECAST HURRICANE LEE NEAR 37.9N 50.3W. MAXIMUM
SUSTAINED WINDS 70 KT GUSTS 85 KT.
.120 HOUR FORECAST TROPICAL STORM LEE NEAR 45.0N 39.0W. MAXIMUM
SUSTAINED WINDS 50 KT GUSTS 60 KT.

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 N OF 24N E OF 45W WINDS 20 KT OR LESS. SEAS 8 TO 10 FT IN
NW TO N SWELL.
.24 HOUR FORECAST WINDS 20 KT OR LESS. SEAS LESS THAN 8 FT.

.CARIBBEAN S OF 15N BETWEEN 65W AND 71W E TO SE WINDS 20 TO 25
KT. SEAS TO 8 FT.
.12 HOUR FORECAST S OF 15N BETWEEN 64W AND 75W...INCLUDING THE
GULF OF VENEZUELA...NE TO E WINDS 20 TO 25 KT. SEAS 8 FT.
.24 HOUR FORECAST FROM 11N TO 15N BETWEEN 64W AND 76W NE TO E
WINDS 20 TO 25 KT. SEAS 8 TO 9 FT. FROM 15N TO 18N BETWEEN 70W
AND 76W E WINDS 20 TO 25 KT. SEAS TO 8 FT.
.36 HOUR FORECAST S OF 15N BETWEEN 64W AND 73W...INCLUDING THE
GULF OF VENEZUELA...NE TO E WINDS 20 TO 25 KT. SEAS 8 FT.
.48 HOUR FROM 11N TO 17.5N BETWEEN 68W AND 76W...INCLUDING THE
GULF OF VENEZUELA...E WINDS 20 TO 25 KT. SEAS 8 FT.

.CARIBBEAN 12 HOUR FORECAST S OF 18N W OF 85W...INCLUDING THE
GULF OF HONDURAS...E TO SE WINDS 20 TO 25 KT. SEAS LESS THAN 8
FT.
.24 HOUR FORECAST LITTLE CHANGE.
.30 HOUR FORECAST WINDS 20 KT OR LESS. SEAS LESS THAN 8 FT.
.36 HOUR FORECAST S OF 18N W OF 85W...INCLUDING THE GULF OF
HONDURAS...E TO SE WINDS 20 TO 25 KT. SEAS LESS THAN 8 FT.
.48 HOUR FORECAST LITTLE CHANGE.

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

$$
.FORECASTER GR. NATIONAL HURRICANE CENTER.



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