High Seas Forecast
Issued by NWS

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000
FZNT01 KWBC 231609
HSFAT1

HIGH SEAS FORECAST FOR METAREA IV
NWS OCEAN PREDICTION CENTER WASHINGTON DC
1630 UTC MON OCT 23 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SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS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).

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 1200 UTC OCT 23
24 HOUR FORECAST VALID 1200 UTC OCT 24
48 HOUR FORECAST VALID 1200 UTC OCT 25

.WARNINGS.

...GALE WARNING...
.LOW E OF AREA 56N30W 961 MB MOVING NE 10 KT. OVER FORECAST
WATERS FROM 62N TO 65N E OF 38W WINDS 35 TO 45 KT. SEAS 14 TO 24
FT. ELSEWHERE WITHIN 600 NM NW QUADRANT AND FROM 48N TO 56N E OF
53W WINDS 25 TO 40 KT. SEAS 14 TO 28 FT...HIGHEST NEAR 54N35W.
.24 HOUR FORECAST LOW E OF AREA 59N23W 977 MB. WITHIN 600 NM W
SEMICIRCLE WINDS 20 TO 30 KT. SEAS 12 TO 19 FT. ELSEWHERE N OF
60N E OF GREENLAND AND E OF A LINE FROM 60N43W TO 52N54W TO
47N52W WINDS LESS THAN 25 KT. SEAS 8 TO 14 FT.
.48 HOUR FORECAST LOW WELL E OF AREA. FROM 46N TO 58N E OF 45W
WINDS LESS THAN 25 KT. SEAS 8 TO 11 FT.

...GALE WARNING...
.LOW 44N39W 1005 MB MOVING NE 20 KT. OVER FORECAST WATERS WITHIN
240 NM E AND SE QUADRANTS AND FROM 40N TO 48N E OF 51W WINDS 25
TO 35 KT. SEAS 13 TO 22 FT. ELSEWHERE FROM 36N TO 40N E OF 54W
WINDS LESS THAN 25 KT. SEAS 8 TO 15 FT.
.24 HOUR FORECAST LOW AND ASSOCIATED CONDITIONS E OF AREA.

...GALE WARNING...
.LOW 60N46W 1003 MB NEARLY STATIONARY. WITHIN 360 NM W
SEMICIRCLE WINDS 25 TO 35 KT. SEAS 10 TO 19 FT.
.24 HOUR FORECAST LOW DISSIPATED AND ASSOCIATED CONDITIONS
DIMINISHED.

...GALE WARNING...
.24 HOUR FORECAST OVER FORECAST WATERS N OF 65N BETWEEN
GREENLAND AND 61W AREA OF S WINDS 25 TO 35 KT. SEAS TO 12 FT.
ELSEWHERE W OF A LINE FROM 65N53W TO 60N64W WINDS TO 25 KT. SEAS
LESS THAN 8 FT.
.48 HOUR FORECAST N OF 65N BETWEEN GREENLAND AND 61W WINDS 20 TO
30 KT. SEAS TO 12 FT.

...GALE WARNING...
.24 HOUR FORECAST NEW LOW 42N41W 1010 MB. WITHIN 420 NM SW AND
240 NM NW QUADRANTS WINDS 25 TO 35 KT. SEAS 12 TO 19 FT.
ELSEWHERE FROM 31N TO 47N E OF 54W WINDS LESS THAN 25 KT. SEAS 8
TO 14 FT.
.48 HOUR FORECAST LOW E OF AREA 41N34W 1003 MB. OVER FORECAST
WATERS FROM 31N TO 44N E OF 44W WINDS 25 TO 35 KT. SEAS 10 TO 17
FT. ELSEWHERE FROM 31N TO 46N E OF 50W WINDS LESS THAN 25 KT.
SEAS 8 TO 13 FT.

...GALE WARNING...
.24 HOUR FORECAST OVER FORECAST WATERS BETWEEN 79W AND A LINE
FROM 43N68W TO 37N68W TO 31N77W AREA OF S WINDS 20 TO 30 KT.
SEAS TO 10 FT.
.48 HOUR FORECAST FROM 31N TO 45N BETWEEN 63W AND 71W WINDS 25
TO 35 KT. SEAS 8 TO 12 FT.

.SYNOPSIS AND FORECAST.

.48 HOUR FORECAST FROM 58N TO 61N W OF 59W AREA OF SE WINDS 20
TO 30 KT. SEAS LESS THAN 8 FT.

.DENSE FOG. 12 HOUR FORECAST VSBY OCCASIONALLY LESS THAN 1 NM
FROM 60N TO 64N W OF 62W.
.24 HOUR FORECAST CONDITIONS IMPROVED.

.DENSE FOG. 48 HOUR FORECAST VSBY OCCASIONALLY LESS THAN 1 NM
FROM 41N TO 44N BETWEEN 67W AND 70W.

.HIGH 43N61W 1033 MB MOVING SE 10 KT.
.24 HOUR FORECAST HIGH 39N60W 1030 MB.
.48 HOUR FORECAST HIGH 38N57W 1029 MB.

.FORECASTER CLARK. 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 OCT 23.
24 HOUR FORECAST VALID 1200 UTC TUE OCT 24.
48 HOUR FORECAST VALID 1200 UTC WED OCT 25.

.WARNINGS.

...GULF OF MEXICO GALE WARNING...
.GULF OF MEXICO COLD FRONT FROM 30N86W TO 26N88W TO 20N95W TO
23N98W. S OF 21N W OF 95W NW WINDS 20 TO 25 KT. SEAS BUILDING TO
8 FT.
.06 HOUR FORECAST COLD FRONT FROM 30N85W TO 25N88W TO 20N94W TO
18N94W. S OF 21N W OF 95W NW WINDS 25 TO 35 KT. SEAS TO 11 FT.
.12 HOUR FORECAST COLD FRONT FROM 30N84W TO 23N89W TO 20N94W TO
18N94W. S OF 21N W OF 95W NW TO N WINDS 20 TO 30 KT. SEAS TO 10
FT.
.30 HOUR FORECAST COLD FRONT FROM 27N82W TO 21.5N87W. S OF 21N W
OF 95W NW WINDS 25 TO 35 KT. SEAS 8 TO 11 FT.
ELSEWHERE S OF 21N W OF 92W NW TO N WINDS 20 TO 30 KT. SEAS TO 9
FT. N OF 25N W OF 92W N WINDS 20 TO 25 KT. SEAS TO 8 FT.
.36 HOUR FORECAST COLD FRONT FROM 26N82W TO 23N82.5W. GULF W OF
88W N WINDS 20 TO 25 KT. SEAS TO 10 FT...HIGHEST NEAR 19N95W.
.48 HOUR FORECAST FRONT SE OF AREA. GULF S OF 28N N WINDS 20 TO
25 KT. SEAS TO 10 FT...HIGHEST NEAR 20N94W.

.SYNOPSIS AND FORECAST.

.ATLC FROM 09N TO 14N BETWEEN 47W AND 54W WINDS 20 KT OR LESS.
SEAS 8 TO 9 FT IN NE TO E SWELL. SCATTERED TSTMS WITHIN 180 NM E
AND 360 NM W OF WAVE.
.24 HOUR FORECAST FROM 09N TO 14N BETWEEN 47W AND 55W WINDS 20
KT OR LESS. SEAS 8 TO 9 FT IN NE TO E SWELL.
.48 HOUR FORECAST FROM 09N TO 12N BETWEEN 45W AND 49W NE TO E
WINDS 20 TO 25 KT. SEAS TO 8 FT. FROM 09N TO 14N BETWEEN 49W AND
55W WINDS 20 KT OR LESS. SEAS 8 TO 9 FT IN NE TO E SWELL.

.ATLC 24 HOUR FORECAST COLD FRONT FROM 31N37W TO 27N50W...THEN
WEAKENING STATIONARY FRONT TO 27N60W. N OF LINE FROM 31N35W TO
28N62W WINDS 20 KT OR LESS. SEAS 8 TO 9 FT IN NE TO E SWELL.
.48 HOUR FORECAST WEAKENING COLD FRONT FROM 28N35W TO 26N43W TO
26N50W...THEN WEAKENING STATIONARY FRONT TO 27N60W. FROM 29N TO
31N BETWEEN 56W AND 60W E WINDS 20 TO 25 KT. SEAS 8 TO 9 FT.
ELSEWHERE N OF LINE FROM 26N35W TO 25N49W TO 29N67W WINDS 20 KT
OR LESS. SEAS 8 TO 11 FT IN N TO NE SWELL...HIGHEST NEAR 31N42W.

.CARIBBEAN FROM 11.5N TO 18N BETWEEN 70W AND 81W E WINDS 20 TO
25 KT. SEAS TO 11 FT...HIGHEST NEAR 14N76W.
.12 HOUR FORECAST S OF 12.5N BETWEEN 70W AND 74W NE TO E WINDS
20 TO 25 KT. SEAS TO 8 FT. FROM 12.5N TO 17.5N BETWEEN 72W AND
82W WINDS 20 KT OR LESS. SEAS 8 TO 10 FT IN E TO SE SWELL.
.24 HOUR FORECAST FROM 12N TO 16N BETWEEN 73W AND 81W WINDS 20
KT OR LESS. SEAS 8 TO 9 FT IN E SWELL.
.30 HOUR FORECAST WINDS 20 KT OR LESS. SEAS 8 FT IN E SWELL.

.CARIBBEAN 48 HOUR FORECAST COLD FROM 22N82W TO 16N87W. W OF
FRONT N TO NE WINDS 20 TO 25 KT. SEAS TO 8 FT NW.

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

$$

.FORECASTER MCELROY. NATIONAL HURRICANE CENTER.


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