High Seas Forecast
Issued by NWS

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000
FZNT01 KWBC 190338
HSFAT1

HIGH SEAS FORECAST FOR METAREA IV
NWS OCEAN PREDICTION CENTER WASHINGTON DC
0430 UTC THU OCT 19 2017

CCODE/1:31:04:01:00/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SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS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).

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).

THE U.S. COAST GUARD IS CURRENTLY EXPERIENCING DEGRADATION IN
IMAGE QUALITY OF ALL HFFAX PRODUCTS. TROUBLESHOOTING OF THE
PROBLEM IS TAKING PLACE.

SECURITE

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

SYNOPSIS VALID 0000 UTC OCT 19
24 HOUR FORECAST VALID 0000 UTC OCT 20
48 HOUR FORECAST VALID 0000 UTC OCT 21

.WARNINGS.

...STORM WARNING...
.LOW 62N40W 990 MB MOVING NE 10 KT. OVER FORECAST WATERS N OF
64N BETWEEN 35W AND THE E COAST OF GREENLAND WINDS 35 TO 50 KT.
SEAS 12 TO 22 FT. ELSEWHERE N OF 63N BETWEEN 35W AND THE E COAST
OF GREENLAND...AND FROM 56N TO 60N BETWEEN 35W AND 46W WINDS 25
TO 35 KT. SEAS 9 TO 15 FT.
.24 HOUR FORECAST LOW DISSIPATED WITH NEW LOW 62N41W 990 MB. N
OF 65N BETWEEN 35W AND 40W WINDS 35 TO 50 KT. SEAS 16 TO 27 FT.
ELSEWHERE N OF 64N BETWEEN 35W AND 41W...AND BETWEEN 240 NM AND
480 NM S AND SW QUADRANTS WINDS 25 TO 35 KT. SEAS 10 TO 16 FT.
.48 HOUR FORECAST LOW E OF AREA 63N30W 996 MB. N OF 64N BETWEEN
35W AND 39W WINDS 25 TO 35 KT. SEAS 12 TO 18 FT. ELSEWHERE FROM
55N TO 60N BETWEEN 35W AND 40W WINDS 20 TO 30 KT. SEAS 8 TO 14
FT.

...STORM WARNING...
.LOW 42N44W 1007 MB MOVING NE 35 KT AND RAPIDLY INTENSIFYING.
FRONT EXTENDS FROM 42N35W TO THE LOW TO 35N55W. WITHIN 180 NM SE
SEMICIRCLE WINDS 25 TO 40 KT. SEAS 10 TO 16 FT. ELSEWHERE OVER
FORECAST WATERS WITHIN 120 NM NW SEMICIRCLE AND 300 NM S AND SE
OF THE FRONT WINDS 20 TO 30 KT. SEAS 8 TO 13 FT.
.18 HOUR FORECAST LOW E OF AREA 47N29W 983 MB. OVER FORECAST
WATERS FROM 42N TO 50N E OF 40W WINDS 35 TO 50 KT. SEAS 13 TO 21
FT.
.24 HOUR FORECAST LOW E OF AREA 49N26W 970 MB. FROM 43N TO 48N E
OF 38W WINDS 35 TO 50 KT. SEAS 18 TO 27 FT. ELSEWHERE FROM 40N
TO 50N E OF 39W WINDS 25 TO 35 KT. SEAS 12 TO 18 FT.
.48 HOUR FORECAST LOW AND CONDITIONS E OF AREA.

...GALE WARNING...
.FROM 31N TO 36N W OF 62W E TO NE WINDS TO 25 KT. SEAS TO 11 FT.
.24 HOUR FORECAST NEW LOW 33N66W 1015 MB. WITHIN 480 NM N AND NE
QUADRANTS...AND FROM 31N TO 34N W OF 76W WINDS TO 25 KT. SEAS TO
11 FT.
.48 HOUR FORECAST LOW 40N50W 1000 MB. WITHIN 240 NM SE
SEMICIRCLE WINDS 35 TO 45 KT. SEAS 12 TO 18 FT. ELSEWHERE WITHIN
480 NM SE SEMICIRCLE AND 660 NM W QUADRANT WINDS 25 TO 35 KT.
SEAS 8 TO 13 FT.

...GALE WARNING...
.24 HOUR FORECAST W OF A LINE FROM 62N63W TO 53N53W TO 45N61W
WINDS 25 TO 35 KT. SEAS TO 10 FT.
.48 HOUR FORECAST LOW 56N51W 982 MB. WITHIN 660 NM E...720 NM
S...420 NM W...AND 720 NM N QUADRANTS WINDS 25 TO 40 KT. SEAS 10
TO 18 FT.

.SYNOPSIS AND FORECAST.

.LOW 51N55W 1008 MB MOVING SE 20 KT. OVER FORECAST WATERS WITHIN
540 NM S QUADRANT WINDS 20 TO 30 KT. SEAS TO 9 FT.
.24 HOUR FORECAST LOW DISSIPATED AND CONDITIONS DIMINISHED.

.HIGH 32N35W 1029 MB MOVING E 10 KT.
.24 HOUR FORECAST HIGH E OF AREA.

.HIGH 38N71W 1028 MB MOVING NE 40 KT.
.24 HOUR FORECAST HIGH 41N49W 1029 MB.
.48 HOUR FORECAST HIGH E OF AREA.

.FORECASTER NOLT. 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 THU OCT 19.
24 HOUR FORECAST VALID 0000 UTC FRI OCT 20.
48 HOUR FORECAST VALID 0000 UTC SAT OCT 21.

.WARNINGS.

.NONE.

.SYNOPSIS AND FORECAST.

.ATLC STATIONARY FRONT FROM 31N71W TO 28N76W TO 26N80W. NW OF
FRONT NE WINDS 20 TO 25 KT...EXCEPT WINDS 20 KT OR LESS WITHIN
120 NM NW OF FRONT BETWEEN 73W AND 78W. SEAS 8 TO 11 FT...
EXCEPT LESS THAN 8 FT WITHIN 120 NM NW OF FRONT BETWEEN 73W AND
78W.
.24 HOUR FORECAST NEW LOW PRES JUST N OF AREA NEAR 32N68W 1015
MB WITH WEAKENING STATIONARY FRONT SW TO 28N75W AND DISSIPATING
TROUGH TO 26N80W. FROM 28N TO 30N W OF 77W NE WINDS 20 TO 25 KT.
SEAS 8 FT.
.30 HOUR FORECAST COLD FRONT FROM 31N69W TO 26N76W. FROM 28N TO
30N BETWEEN 77W AND 80W WINDS 20 KT OR LESS. SEAS TO 8 FT IN
DECAYING NE SWELL.
.48 HOUR FORECAST COLD FRONT FROM 31N61W TO 27N68W AND
STATIONARY TO 26N80W. N OF WITHIN 240 NM E OF FRONT SW WINDS 20
TO 25 KT. SEAS 8 TO 10 FT.

.ATLC FROM 10N TO 16N BETWEEN 55W AND 61W E WINDS 20 TO 25 KT.
SEAS 8 TO 10 FT. ELSEWHERE FROM 09N TO 20N BETWEEN 44W AND 62W
WINDS 20 KT OR LESS. SEAS 8 TO 9 FT IN NE TO E SWELL. FROM 12N
TO 27N E OF 44W WINDS 20 KT OR LESS. SEAS 8 TO 9 FT IN NE SWELL.
.24 HOUR FORECAST FROM 10N TO 13N W OF 57W E WINDS 20 TO 25 KT.
SEAS 8 TO 9 FT. ELSEWHERE S OF 16N W OF 56W WINDS 20 KT OR LESS.
SEAS 8 FT IN E SWELL.
.48 HOUR FORECAST FROM 10N TO 13N W OF 56W WINDS 20 KT OR LESS.
SEAS 8 FT IN E SWELL.

.ATLC 18 HOUR FORECAST TROPICAL WAVE ALONG 38W FROM 08N TO 16N.
E OF WAVE FROM 14N TO 16N E WINDS 20 TO 25 KT. SEAS 8 TO 9 FT.
.24 HOUR FORECAST TROPICAL WAVE ALONG 39W S OF 18N. E OF WAVE
FROM 13N TO 16N E TO SE WINDS 20 TO 25 KT. SEAS 8 TO 10 FT.
.48 HOUR FORECAST TROPICAL WAVE ALONG 46W S OF 18N. WITHIN 240
NM E OF WAVE FROM 10N TO 16N E TO SE WINDS 20 TO 25 KT. SEAS 8
TO 9 FT. FROM 10N TO 17N E OF 42W NE TO E WINDS 20 TO 25 KT.
SEAS 8 TO 11 FT.

.CARIBBEAN FROM 12N TO 15N BETWEEN 66W AND 75W E WINDS 20 TO 25
KT. SEAS TO 8 FT. FROM 12N TO 14N BETWEEN 66W AND 74W NE TO E
WINDS 20 TO 25 KT. SEAS 8 FT. FROM 12N TO 14N BETWEEN 74W AND
77W WINDS 20 KT OR LESS. SEAS TO 8 FT IN NE TO E SWELL.
.24 HOUR FORECAST FROM 11N TO 17.5N BETWEEN 64W AND 75W E TO SE
WINDS 20 TO 25 KT. SEAS 8 TO 10 FT.
.48 HOUR FORECAST FROM 11N TO 18N BETWEEN 66W AND 75W E TO SE
WINDS 20 TO 25 KT. SEAS 8 TO 11 FT...HIGHEST NEAR 14N70W.

.GULF OF MEXICO STATIONARY FRONT FROM 25N81.5W TO 26N90W AND
DISSIPATING TO 18N94W. S OF 21N W OF FRONT NW TO N WINDS 20 TO
25 KT. SEAS 8 TO 10 FT. ELSEWHERE S OF 20.5N W OF 93W WINDS 20
KT OR LESS. SEAS TO 9 FT IN N TO NE SWELL. N OF FRONT TO 29N AND
E OF 87W NE TO E WINDS 20 TO 25 KT. SEAS TO 8 FT. ELSEWHERE FROM
26.5N TO 28N BETWEEN 87W AND 91W WINDS 20 KT OR LESS. SEAS TO 8
FT IN NE SWELL.
.12 HOUR FORECAST FRONT DISSIPATED. WINDS 20 KT OR LESS. SEAS
LESS THAN 8 FT.
.24 HOUR FORECAST FROM 25N TO 29N E OF 90W NE TO E WINDS 20 TO
25 KT. SEAS LESS THAN 8 FT.
.36 HOUR FORECAST WINDS 20 KT OR LESS. SEAS LESS THAN 8 FT.

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

$$
.FORECASTER AGUIRRE. NATIONAL HURRICANE CENTER.


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