High Seas Forecast
Issued by NWS

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000
FZNT01 KWBC 211012
HSFAT1

HIGH SEAS FORECAST FOR METAREA IV
NWS OCEAN PREDICTION CENTER WASHINGTON DC
1030 UTC SAT OCT 21 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SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS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.

PAN PAN

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

SYNOPSIS VALID 0600 UTC OCT 21
24 HOUR FORECAST VALID 0600 UTC OCT 22
48 HOUR FORECAST VALID 0600 UTC OCT 23

.WARNINGS.

...HURRICANE FORCE WIND WARNING...
.LOW 43N45W 989 MB MOVING NE 35 KT AND RAPIDLY INTENSIFYING.
WITHIN 240 NM E AND 360 NM S QUADRANTS WINDS 45 TO 60 KT. SEAS
14 TO 23 FT. ELSEWHERE WITHIN 300 NM N...420 NM E...540 NM
S...AND 600 NM W QUADRANTS WINDS 30 TO 45 KT. SEAS 10 TO 16 FT.
.06 HOUR FORECAST LOW 47N40W 976 MB. WITHIN 240 NM E AND SE
QUADRANTS WINDS 50 TO 65 KT. SEAS 16 TO 26 FT.
.12 HOUR FORECAST LOW 51N37W 958 MB. WITHIN 180 NM E AND SE
SEMICIRCLES WINDS 60 TO 80 KT. SEAS 21 TO 36 FT.
.24 HOUR FORECAST LOW 55N35W 950 MB. OVER FORECAST WATERS FROM
47N TO 59N E OF 40W WINDS 40 TO 55 KT. SEAS 21 TO 34 FT.
ELSEWHERE FROM 42N TO 63N E OF 41W WINDS 25 TO 40 KT. SEAS 12 TO
21 FT.
.48 HOUR FORECAST LOW E OF AREA 56N33W 958 MB. FROM 51N TO 65N E
OF 42W WINDS 35 TO 50 KT. SEAS 21 TO 32 FT. ELSEWHERE WITHIN 840
NM NW AND 900 NM SW QUADRANTS WINDS 25 TO 40 KT. SEAS 12 TO 21
FT.

...STORM WARNING...
.LOW 56N52W 982 MB MOVING SE 10 KT. FRONT EXTENDS FROM 59N42W TO
46N49W. WITHIN 660 NM SW QUADRANT...720 NM N AND NW
QUADRANTS...AND 420 NM E OF THE FRONT WINDS 25 TO 40 KT. SEAS 10
TO 18 FT.
.12 HOUR FORECAST LOW 54N44W 980 MB. WITHIN 300 NM SW OF A LINE
FROM 60N55W TO 54N50W TO 49N45W WINDS 35 TO 50 KT. SEAS 16 TO 24
FT.
.24 HOUR FORECAST LOW 54N45W 980 MB. WITHIN 300 NM SW OF A LINE
FROM 67N54W TO 58N52W TO 52N49W TO 51N42W...AND WITHIN 120 NM NW
OF A LINE FROM 62N39W TO 57N45W WINDS 35 TO 50 KT. SEAS 16 TO 25
FT. ELSEWHERE N OF 41N BETWEEN 41W AND 62W WINDS 25 TO 35 KT.
SEAS 10 TO 18 FT.
.48 HOUR FORECAST LOW AND ASSOCIATED CONDITIONS ABSORBED BY LOW
56N33W DESCRIBED ABOVE.

...GALE WARNING...
.LOW 65N39W 997 MB MOVING SW 10 KT. OVER FORECAST WATERS N OF
65N E OF 38W WINDS 25 TO 35 KT. SEAS 10 TO 16 FT.
.24 HOUR FORECAST LOW DISSIPATED AND CONDITIONS DIMINISHED.

.SYNOPSIS AND FORECAST.

.LIGHT TO MODERATE FREEZING SPRAY W OF A LINE FROM 62N60W TO
67N58W.
.24 HOUR FORECAST LIGHT TO MODERATE FREEZING SPRAY N OF 64N W OF
56W.
.48 HOUR FORECAST CONDITIONS DIMINISHED.

.DENSE FOG. VSBY OCCASIONALLY LESS THAN 1 NM FROM 42N TO 50N
BETWEEN 43W AND 51W.
.24 HOUR FORECAST CONDITIONS IMPROVED.

.24 HOUR FORECAST HIGH 41N67W 1032 MB.
.48 HOUR FORECAST HIGH 42N62W 1033 MB.

.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 0600 UTC SAT OCT 21.
24 HOUR FORECAST VALID 0600 UTC SUN OCT 22.
48 HOUR FORECAST VALID 0600 UTC MON OCT 23.

.WARNINGS.

.NONE.

.SYNOPSIS AND FORECAST.

.ATLC COLD FRONT FROM 31N56W TO 27N65W AND STATIONARY FRONT TO
26N69W AND 26N75W. N OF 29N E OF FRONT TO 54W SW WINDS 20 TO 25
KT. SEAS 8 TO 9 FT.
.12 HOUR FORECAST COLD FRONT FROM 31N51W TO 30N56W TO 26N59W
WINDS 20 KT OR LESS. SEAS LESS THAN 8 FT.

.ATLC FROM 26N TO 27N BETWEEN 77W AND 80W AND FROM 24N TO 27N W
OF 79W...INCLUDING STRAITS OF FLORIDA...E WINDS 20 TO 25 KT.
SEAS LESS THAN 8 FT.
.24 HOUR FORECAST FROM 23N TO 27N W OF 79W...INCLUDING STRAITS
OF FLORIDA...E WINDS 20 TO 25 KT. SEAS TO 8 FT.
.48 HOUR FORECAST WINDS 20 KT OR LESS. SEAS LESS THAN 8 FT.

.ATLC TROPICAL WAVE FROM 19N45W TO 14N46W TO 09N47W. FROM 11N TO
TO 19N E OF 41W NE TO E WINDS 20 TO 25 KT. SEAS 9 TO 10 FT.
ELSEWHERE FROM 08N TO 20N E OF 46W WINDS 20 KT OR LESS. SEAS 8
TO 9 FT IN MIXED N AND SE SWELL.
.24 HOUR FORECAST TROPICAL WAVE ALONG 50W/51W S OF 21N. FROM 08N
TO 17N BETWEEN 38W AND 48W WINDS 20 KT OR LESS. SEAS 8 TO 9 FT
IN MIXED SWELL.
.48 HOUR FORECAST TROPICAL WAVE ALONG 57W/58W S OF 20N. FROM 09N
TO 14N BETWEEN 45W AND 52W WINDS 20 KT OR LESS. SEAS 8 TO 9 FT
IN MIXED SWELL.

.ATLC S OF 21N BETWEEN 71W AND 73W E WINDS 20 TO 25 KT. SEAS
LESS THAN 8 FT.
.24 HOUR FORECAST S OF 21N BETWEEN 71W AND 75W...INCLUDING
ENTRANCE TO WINDWARD PASSAGE...E WINDS 20 TO 25 KT. SEAS LESS
THAN 8 FT.
.48 HOUR FORECAST LITTLE CHANGE.

.CARIBBEAN FROM 11N TO 18N BETWEEN 66W AND 77W E TO SE WINDS 20
TO 25 KT. SEAS 9 TO 11 FT. ELSEWHERE FROM 11N TO 18N BETWEEN 64W
AND 79W WINDS 20 KT OR LESS. SEAS 8 TO 9 FT IN MIXED SWELL.
.24 HOUR FORECAST FROM 11N TO 18N BETWEEN 69W AND 79W AND FROM
11.5N TO 16N BETWEEN 65W AND 69W E TO SE WINDS 20 TO 25 KT. SEAS
9 TO 11 FT. ELSEWHERE FROM 11N TO 18N BETWEEN 65W AND 82W WINDS
20 KT OR LESS. SEAS 8 TO 9 FT IN N TO NE SWELL.
.48 HOUR FORECAST FROM 12N TO 18N BETWEEN 70W AND 78W E WINDS 20
TO 25 KT. SEAS 9 TO 11 FT. ELSEWHERE FROM 11N TO 18N BETWEEN 68W
AND 82W WINDS 20 KT OR LESS. SEAS 8 TO 9 FT IN NE SWELL.

.GULF OF MEXICO FROM 23N TO 29N BETWEEN E OF 884W...INCLUDING
STRAITS OF FLORIDA...E WINDS 20 TO 25 KT. SEAS TO 8 FT STRAITS
OF FLORIDA.
.24 HOUR FORECAST LITTLE CHANGE.
.48 HOUR FORECAST N OF 28N BETWEEN 86W AND 88W SE WINDS 20 TO
25 KT. SEAS LESS THAN 8 FT.

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

$$
.FORECASTER MT. NATIONAL HURRICANE CENTER.



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