High Seas Forecast
Issued by NWS

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000
FZNT01 KWBC 201602
HSFAT1

HIGH SEAS FORECAST FOR METAREA IV
NWS OCEAN PREDICTION CENTER WASHINGTON DC
1630 UTC FRI OCT 20 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SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS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 1200 UTC OCT 20
24 HOUR FORECAST VALID 1200 UTC OCT 21
48 HOUR FORECAST VALID 1200 UTC OCT 22

.WARNINGS.

...HURRICANE FORCE WIND WARNING...
.LOW 34N60W 1007 MB MOVING NE 50 KT AND RAPIDLY INTENSIFYING.
OVER FORECAST WATERS WITHIN 420 NM SE SEMICIRCLE WINDS 25 TO 40
KT. SEAS 8 TO 13 FT. ELSEWHERE S OF A LINE FROM 37N46W TO 40N54W
TO 34N65W WINDS 20 TO 30 KT. SEAS TO 9 FT.
.12 HOUR FORECAST LOW 39N51W 996 MB. WITHIN 240 NM E AND SE
QUADRANTS WINDS 40 TO 50 KT. SEAS 14 TO 23 FT.
.24 HOUR FORECAST LOW 46N40W 968 MB. WITHIN 120 NM S AND SE
QUADRANTS WINDS 50 TO 70 KT. SEAS 16 TO 30 FT. ALSO WITHIN 180
NM E SEMICIRCLE...240 NM SW AND 360 NM S QUADRANTS WINDS 40 TO
50 KT. SEAS 14 TO 22 FT. ELSEWHERE E OF A LINE FROM 34N46W TO
47N47W TO 58N40W WINDS 25 TO 40 KT. SEAS 8 TO 17 FT.
.30 HOUR FORECAST LOW 51N38W 952 MB. WITHIN 60 NM S AND SE
QUADRANTS WINDS 60 TO 80 KT. SEAS 22 TO 40 FT.
.48 HOUR FORECAST LOW 55N35W 946 MB. WITHIN 180 NM NW AND 420 NM
S QUADRANTS AND WITHIN 60 NM W OF A LINE FROM 61N41W TO 58N45W
WINDS 40 TO 55 KT. SEAS 17 TO 32 FT. ELSEWHERE N OF 41N AND E OF
A LINE FROM 41N55W TO 58N61W TO 67N61W WINDS 25 TO 40 KT. SEAS
12 TO 26 FT.

...STORM WARNING...
.LOW 57N58W 987 MB MOVING E 10 KT. WITHIN 660 NM S AND SE
QUADRANTS WINDS 25 TO 35 KT. SEAS 8 TO 12 FT. ELSEWHERE WITHIN
600 NM N AND SE AND 840 NM S QUADRANTS WINDS 20 TO 30 KT. SEAS
TO 9 FT.
.24 HOUR FORECAST LOW 57N51W 985 MB. FROM 51N TO 59N BETWEEN 53W
AND 61W WINDS 40 TO 50 KT. SEAS 12 TO 21 FT. ELSEWHERE N OF 39N
BETWEEN 66W AND A LINE FROM 39N52W TO 52N52W TO 67N54W AND FROM
59N TO 60N BETWEEN 42W AND 52W WINDS 25 TO 40 KT. SEAS 10 TO 17
FT.
.48 HOUR FORECAST LOW AND ASSOCIATED CONDITIONS ABSORBED BY LOW
55N35W DESCRIBED ABOVE.

...GALE WARNING...
.LOW 61N37W 993 MB MOVING SE 10 KT. OVER FORECAST WATERS N OF
65N BETWEEN 35W AND 37W WINDS 35 TO 45 KT. SEAS 12 TO 20 FT.
ELSEWHERE N OF 64N BETWEEN 35W AND 39W...AND FROM 56N TO 60N
BETWEEN 35W AND 43W WINDS 25 TO 35 KT. SEAS 8 TO 17 FT.
.24 HOUR FORECAST LOW DISSIPATED AND CONDITIONS DIMINISHED.

.SYNOPSIS AND FORECAST.

.OVER FORECAST WATERS E OF A LINE FROM 56N38W TO 45N41W TO
42N39W WINDS TO 25 KT. SEAS 8 TO 14 FT.
.24 HOUR FORECAST CONDITIONS E OF AREA.

.24 HOUR FORECAST LIGHT TO MODERATE FREEZING SPRAY W OF A LINE
FROM 61N63W TO 67N57W.
.48 HOUR FORECAST LIGHT TO MODERATE FREEZING SPRAY N OF 65N W OF
57W.

.DENSE FOG. VSBY OCCASIONALLY LESS THAN 1 NM FROM 52N TO 57N
BETWEEN 54W AND 58W.
.24 HOUR FORECAST CONDITIONS IMPROVED.

.HIGH 40N39W 1031 MB MOVING E 35 KT.
.24 HOUR FORECAST HIGH E OF AREA.

.48 HOUR FORECAST HIGH 42N65W 1034 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 FRI OCT 20.
24 HOUR FORECAST VALID 1200 UTC SAT OCT 21.
48 HOUR FORECAST VALID 1200 UTC SUN OCT 22.

.WARNINGS.

.NONE.

.SYNOPSIS AND FORECAST.

.ATLC COLD FRONT FROM 31N65W TO 27N72W. N OF 30N E OF FRONT TO
58W SW WINDS 20 TO 25 KT. SEAS 8 TO 9 FT.
.18 HOUR FORECAST COLD FRONT FROM 31N54W TO 29N55W TO 28N62W
WINDS 20 KT OR LESS. SEAS LESS THAN 8 FT.

.ATLC FROM 10N TO 15N BETWEEN 56W AND 62W WINDS 20 KT OR LESS.
SEAS 8 TO 9 FT IN NE SWELL.
.24 HOUR FORECAST WINDS 20 KT OR LESS. SEAS LESS THAN 8 FT.

.ATLC TROPICAL WAVE FROM 20N37W TO 15N41W TO 08N43W. FROM 14N TO
TO 17N BETWEEN 38W AND 42W E TO SE WINDS 20 TO 25 KT. SEAS 10
FT. ELSEWHERE FROM 12N TO 18N E OF 43W WINDS 20 KT OR LESS. SEAS
8 TO 9 FT IN MIXED N AND NE SWELL.
.24 HOUR FORECAST TROPICAL WAVE ALONG 48W S OF 20N. FROM 12N TO
17N E OF 42W NE TO E WINDS 20 TO 25 KT. SEAS 9 TO 10 FT. FROM
08N TO 18N E OF 48W WINDS 20 KT OR LESS. SEAS 8 TO 9 FT IN MIXED
SWELL.
.48 HOUR FORECAST TROPICAL WAVE ALONG 54W S OF 18N. FROM 08N TO
15N BETWEEN 42W AND 54W WINDS 20 KT OR LESS. SEAS 8 TO 9 FT IN
MIXED SWELL.

.ATLC 12 HOUR FORECAST S OF 21N BETWEEN 70W AND 73W E WINDS 20
TO 25 KT. SEAS LESS THAN 8 FT.
.24 HOUR FORECAST WINDS LESS THAN 20 KT. SEAS LESS THAN 8 FT.
.30 HOUR FORECAST S OF 21N BETWEEN 73W AND 76W...INCLUDING
ENTRANCE TO WINDWARD PASSAGE...E WINDS 20 TO 25 KT. SEAS LESS
THAN 8 FT.
.42 HOUR FORECAST WINDS LESS THAN 20 KT. SEAS LESS THAN 8 FT.

.CARIBBEAN FROM 11N TO 18N BETWEEN 63W AND 75W E TO SE WINDS 20
TO 25 KT. SEAS 8 TO 11 FT. ELSEWHERE FROM 11N TO 18N BETWEEN 62W
AND 78W WINDS 20 KT OR LESS. SEAS 8 TO 9 FT IN NE SWELL.
.24 HOUR FORECAST FROM 12N TO 18N BETWEEN 67W AND 77W E TO SE
WINDS 20 TO 25 KT. SEAS 9 TO 12 FT. ELSEWHERE FROM 11N TO 18N
BETWEEN 64W AND 81W WINDS 20 KT OR LESS. SEAS 8 TO 10 FT IN
MIXED NE AND NW SWELL.
.48 HOUR FORECAST FROM 12N TO 18N BETWEEN 68W AND 77W E 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 11 FT IN MIXED N AND NE
SWELL.

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

$$
.FORECASTER COBB. NATIONAL HURRICANE CENTER.



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