High Seas Forecast
Issued by NWS

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000
FZNT01 KWBC 170955
HSFAT1

HIGH SEAS FORECAST FOR METAREA IV
NWS OCEAN PREDICTION CENTER WASHINGTON DC
1030 UTC THU AUG 17 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SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS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 0600 UTC AUG 17
24 HOUR FORECAST VALID 0600 UTC AUG 18
48 HOUR FORECAST VALID 0600 UTC AUG 19

.WARNINGS.

...HURRICANE WARNING...
.HURRICANE GERT NEAR 41.7N 54.0W 968 MB AT 0900 UTC AUG 17
MOVING ENE OR 065 DEG AT 34 KT. MAXIMUM SUSTAINED WINDS 85 KT
GUSTS 105 KT. TROPICAL STORM FORCE WINDS WITHIN 90 NM NE
QUADRANT...150 NM SE QUADRANT...120 NM SW QUADRANT...AND 50 NM
NW QUADRANT. SEAS 12 FT OR GREATER WITHIN 120 NM NE
QUADRANT...270 NM SE QUADRANT...360 NM SW QUADRANT...AND 300 NM
NW QUADRANT WITH SEAS TO 36 FT. ELSEWHERE FROM 33N TO 43N
BETWEEN 51W AND 63W WINDS 20 TO 33 KT. SEAS TO 11 FT.
.24 HOUR FORECAST POST-TROPICAL CYCLONE GERT NEAR 48.0N 40.2W
990 MB. WITHIN 60 NM SE AND 40 NM SW QUADRANTS WINDS 50 TO 55
KT. SEAS 14 TO 24 FT. ALSO WITHIN 120 NM NE...150 NM SE...120 NM
SW...AND 60 NM NW QUADRANTS WINDS 34 TO 50 KT. SEAS 10 TO 20 FT.
ELSEWHERE WITHIN 300 NM OF CENTER AND 300 NM OF A FRONT FROM
44N41W TO 36N53W WINDS 20 TO 33 KT. SEAS 8 TO 16 FT.
.48 HOUR FORECAST POST-TROPICAL CYCLONE GERT E OF FORECAST AREA
52.0N 33.0W 996 MB. WITHIN 240 NM S OF A FRONT FROM 44N35W TO
34N51W WINDS 20 TO 30 KT. SEAS TO 12 FT.
.72 HOUR FORECAST...DISSIPATED.

...GALE WARNING...
.24 HOUR FORECAST LOW 50N52W 994 MB. WITHIN 300 NM N SEMICIRCLE
AND 540 NM SW QUADRANT WINDS 25 TO 35 KT. SEAS TO 12 FT.
.48 HOUR FORECAST LOW 51N42W 999 MB. WITHIN 300 NM N SEMICIRCLE
AND 540 NM S AND SW QUADRANTS WINDS 20 TO 30 KT. SEAS TO 12 FT.

.SYNOPSIS AND FORECAST.

.48 HOUR FORECAST LOW 67N55W 1003 MB. OVER FORECAST WATERS N OF
A LINE FROM 60N49W TO 65N59W WINDS TO 25 KT. SEAS TO 8 FT.

.DENSE FOG. 24 HOUR FORECAST VSBY OCCASIONALLY LESS THAN 1 NM
FROM 42N TO 48N BETWEEN 35W AND 38W.
.48 HOUR FORECAST DENSE FOG E OF FORECAST AREA.

.HIGH 47N39W 1018 MB MOVING E 25 KT.
.24 HOUR FORECAST HIGH E OF AREA.

.HIGH 41N35W 1020 MB MOVING E 20 KT.
.24 HOUR FORECAST HIGH E OF AREA.

.HIGH 33N40W 1024 MB MOVING SE 10 KT.
.24 HOUR FORECAST HIGH 32N37W 1024 MB.
.48 HOUR FORECAST HIGH 32N39W 1022 MB.

.HIGH 38N71W 1019 MB MOVING E 10 KT.
.24 HOUR FORECAST HIGH 39N66W 1018 MB.
.48 HOUR FORECAST HIGH 42N61W 1020 MB.

.48 HOUR FORECAST NEW HIGH 57N53W 1016 MB.

.FORECASTER COLLINS. 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 THU AUG 17.
24 HOUR FORECAST VALID 0600 UTC FRI AUG 18.
48 HOUR FORECAST VALID 0600 UTC SAT AUG 19.

.WARNINGS.

.NONE.

.SYNOPSIS AND FORECAST.

.ATLC AND CARIBBEAN LOW PRES NEAR 14N52W 1008 MB. WITHIN AREA
BOUNDED BY 20N55W TO 20N46W TO 13N46W TO 13N55W TO 20N55W NE TO E
WINDS 20 TO 25 KT. SEAS 8 TO 9 FT.
.24 HOUR FORECAST LOW PRES...POSSIBLE TROPICAL CYCLONE...NEAR
13N57W 1010 MB. WITHIN AREA BOUNDED BY 20N62W TO 20N53W TO
13N53W TO 13N62W TO 20N62W...INCLUDING IN ATLANTIC EXPOSURES AND
PASSAGES AND ATLANTIC EXPOSURES... E WINDS 20 TO 25 KT. SEAS 8 TO
9 FT.
.48 HOUR FORECAST LOW PRES...POSSIBLE TROPICAL CYCLONE...IN
CARIBBEAN NEAR 14N63W 1009 MB. WITHIN AREA BOUNDED BY 21N65W TO
21N60W TO 17N60W TO 17N65W TO 21N65W...INCLUDING IN ATLANTIC
EXPOSURES AND PASSAGES... WINDS 20 KT OR LESS. SEAS LESS THAN 8
FT. OVER ATLC WATERS WITHIN AREA BOUNDED BY 18N68W TO 18N63W TO
14N63W TO 14N68W TO 18N68W...INCLUDING IN ATLANTIC EXPOSURES AND
PASSAGES AND IN MONA PASSAGE... E WINDS 20 TO 30 KT. SEAS 8 TO 10
FT.

.ATLC LOW PRES NEAR 14N40W 1009 MB. WITHIN AREA BOUNDED BY
19N42W TO 19N36W TO 14N37W TO 14N42W TO 19N42W E WINDS 20 TO 25
KT. SEAS 8 FT.
.24 HOUR FORECAST LOW PRES...POSSIBLE TROPICAL CYCLONE...NEAR
14.5N46W 1011. WITHIN AREA BOUNDED BY 22N52W TO 22N40W TO 15N40W
TO 15N52W TO 22N52W E WINDS 20 TO 30 KT. SEAS 8 TO 10 FT.
.48 HOUR FORECAST LOW PRES...POSSIBLE TROPICAL CYCLONE...NEAR
16N52W 1011 MB. WITHIN AREA BOUNDED BY 24N59W TO 24N46W TO
16N46W TO 16N59W TO 24N59W E WINDS 20 TO 30 KT. SEAS 8 TO 10 FT.

.ATLC AND CARIBBEAN WITHIN AREA BOUNDED BY 21N76W TO 21N73W TO
19N73W TO 19N76W TO 21N76W...INCLUDING APPROACH TO WINDWARD
PASSAGE AND BETWEEN CUBA AND JAMAICA... NE TO E WINDS 20 TO 25
KT. SEAS LESS THAN 8 FT.
.24 HOUR FORECAST WITHIN AREA BOUNDED BY 21N75W TO 21N72W TO
20N72W TO 20N75W TO 21N75W...INCLUDING APPROACH TO WINDWARD
PASSAGE... E WINDS 20 TO 25 KT. SEAS LESS THAN 8 FT.
.48 HOUR FORECAST WINDS 20 KT OR LESS. SEAS LESS THAN 8 FT.

.ATLC 36 HOUR FORECAST WITHIN AREA BOUNDED BY 21N41W TO 21N35W
TO 13N35W TO 13N41W TO 21N41W WINDS 20 KT OR LESS. SEAS 8 FT.
.48 HOUR FORECAST WITHIN AREA BOUNDED BY 19N42W TO 19N35W TO
13N35W TO 13N42W TO 19N42W WINDS 20 KT OR LESS. SEAS 8 FT.

.CARIBBEAN WITHIN AREA BOUNDED BY 13N77W TO 13N74W TO 11N74W TO
11N77W TO 13N77W...INCLUDING WITHIN 90 NM OF COAST OF
COLOMBIA... NE TO E WINDS 20 TO 25 KT. SEAS LESS THAN 8 FT.
.12 HOUR FORECAST WINDS 20 KT OR LESS. SEAS LESS THAN 8 FT.

.CARIBBEAN WITHIN AREA BOUNDED BY 18N73W TO 18N70W TO 16N70W TO
16N73W TO 18N73W NE TO E WINDS 20 TO 25 KT. SEAS LESS THAN 8 FT.
.12 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.

CONVECTION VALID AT 0930 UTC THU AUG 17...

.TROPICAL WAVE FROM 22N66W TO 12N69W. SCATTERED MODERATE TO
ISOLATED STRONG FROM 15N TO 23N BETWEEN 62W AND 72W.

.LOW PRES NEAR 14N52W 1008 MB. SCATTERED MODERATE FROM 12N TO
15N BETWEEN 52W AND 55W.

.LOW PRES NEAR 14N40W 1009 MB. SCATTERED MODERATE FORM 14N TO 17N
BETWEEN 41W AND 44W.

.SCATTERED MODERATE SW CARIBBEAN S OF 12N W OF 80W.

$$
.FORECASTER CHRISTENSEN. NATIONAL HURRICANE CENTER.


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