High Seas Forecast
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750
FZNT01 KWBC 171623 CCA
HSFAT1

HIGH SEAS FORECAST FOR METAREA IV...CORRECTION FOR HURRICANE
NWS OCEAN PREDICTION CENTER WASHINGTON DC
1630 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SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS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 1200 UTC AUG 17
24 HOUR FORECAST VALID 1200 UTC AUG 18
48 HOUR FORECAST VALID 1200 UTC AUG 19

.WARNINGS.


...HURRICANE WARNING...
.HURRICANE GERT NEAR 43.2N 50.0W 975 MB AT 1500 UTC AUG 17
MOVING ENE OR 060 DEG AT 35 KT. MAXIMUM SUSTAINED WINDS 70 KT
GUSTS 85 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...300 NM SE QUADRANT...420 NM SW QUADRANT...AND 270 NM
NW QUADRANT WITH SEAS TO 32 FT.
.12 HOUR FORECAST POST-TROPICAL CYCLONE GERT NEAR 46.0N 43.6W
982 MB. MAXIMUM SUSTAINED WINDS 55 KT GUSTS 65 KT. WITHIN 70 NM
SE AND 40 NM SW QUADRANTS WINDS 45 TO 55 KT. SEAS 14 TO 24 FT.
.24 HOUR FORECAST POST-TROPICAL CYCLONE GERT NEAR 49.3N 37.4W
992 MB. MAXIMUM SUSTAINED WINDS 45 KT GUSTS 55 KT. WITHIN 180 NM
N...240 NM E AND 180 NM S QUADRANTS WINDS 30 TO 45 KT. SEAS 12
TO 21 FT. WITHIN 180 NM SE OF A LINE FROM 42N44W TO 38N50W WINDS
25 TO 35 KT. SEAS 12 TO 17 FT. ELSEWHERE FROM 45N TO 52N E OF
41W WINDS 20 TO 30 KT. SEAS 8 TO 14 FT.
.48 HOUR FORECAST POST-TROPICAL GERT NEAR 52.4N 34.3W 994 MB.
MAXIMUM SUSTAINED WINDS 35 KT GUSTS 45 KT. OVER FORECAST WATERS
FROM 51N TO 55N E OF 40W...AND WITHIN 180 NM SE OF A LINE FROM
48N35W TO 40N40W WINDS 20 TO 30 KT. SEAS TO 12 FT.
.72 HOUR FORECAST...DISSIPATED.

...GALE WARNING...
.LOW 47N55W 1002 MB MOVING NE 10 KT. WITHIN 300 NM E QUADRANT
WINDS TO 25 KT. SEAS LESS THAN 8 FT.
.24 HOUR FORECAST LOW 49N51W 997 MB. WITHIN 240 NM N AND NW
QUADRANTS...AND BETWEEN 180 NM AND 420 NM SW QUADRANT WINDS 25
TO 35 KT. SEAS 8 TO 13 FT. ELSEWHERE WITHIN 540 NM SW
QUADRANT...AND BETWEEN 50N AND 54N W OF 41W WINDS 20 TO 30 KT.
SEAS TO 11 FT.
.48 HOUR FORECAST LOW 51N40W 999 MB. WITHIN 300 NM NW AND 480 NM
SW QUADRANTS WINDS 20 TO 30 KT. SEAS 9 TO 13 FT.

.SYNOPSIS AND FORECAST.

.48 HOUR FORECAST LOW N OF AREA 68N56W 1002 MB. OVER FORECAST
WATERS WITHIN 180 NM S SEMICIRCLE WINDS 20 TO 30 KT. SEAS TO 10
FT.

.48 HOUR FORECAST LOW 62N57W 1007 MB. FROM 61N TO 64N BETWEEN
50W AND 52W WINDS 20 TO 30 KT. SEAS TO 8 FT.

.DENSE FOG. VSBY OCCASIONALLY LESS THAN 1 NM 43N TO 46N BETWEEN
47W AND 52W.
.24 HOUR FORECAST DENSE FOG FROM 43N TO 46N E OF 37W.
.48 HOUR FORECAST DENSE FOG E OF AREA.

.HIGH 32N38W 1025 MB MOVING NE 10 KT.
.24 HOUR FORECAST HIGH E OF AREA.

.24 HOUR FORECAST HIGH 39N64W 1018 MB.
.48 HOUR FORECAST HIGH 42N57W 1022 MB.

.48 HOUR FORECAST NEW HIGH 47N56W 1022 MB.

.FORECASTER SHAW. 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 THU AUG 17.
24 HOUR FORECAST VALID 1200 UTC FRI AUG 18.
48 HOUR FORECAST VALID 1200 UTC SAT AUG 19.

.WARNINGS.

..TROPICAL STORM WARNING...
.POTENTIAL TROPICAL CYCLONE NINE NEAR 13.1N 54.1W 1008 MB AT
1500 UTC AUG 17 MOVING W OR 270 DEG AT 15 KT. MAXIMUM SUSTAINED
WINDS 30 KT GUSTS 40 KT.  ELSEWHERE WITHIN 240 NM N SEMICIRCLE
WINDS 20 TO 30 KT. SEAS 8 TO 12 FT.
.24 HOUR FORECAST TROPICAL STORM NINE NEAR 13.2N 59.8W. MAXIMUM
SUSTAINED WINDS 35 KT GUSTS 45 KT. TROPICAL STORM FORCE WINDS
WITHIN 50 NM N SEMICIRCLE. ELSEWHERE WITHIN 240 NM N
AND 90 NM S SEMICIRCLES WINDS 20 TO 30 KT. SEAS 8 TO 12 FT.
.48 HOUR FORECAST TROPICAL STORM NINE NEAR 13.9N 66.7W. MAXIMUM
SUSTAINED WINDS 45 KT GUSTS 55 KT. TROPICAL STORM FORCE WINDS
WITHIN 60 NM N SEMICIRCLE AND 30 NM S SEMICIRCLE. SEAS 12 FT OR
GREATER WITHIN 75 NM N AND 30 NM S SEMICIRCLES WITH SEAS TO 14
FT. ELSEWHERE WITHIN 240 NM N AND 90 NM S SEMICIRCLES WINDS 20
TO 30 KT. SEAS 8 TO 12 FT.
.72 HOUR FORECAST TROPICAL STORM NINE NEAR 14.5N 74.5W. MAXIMUM
SUSTAINED WINDS 55 KT GUSTS 65 KT.
EXTENDED OUTLOOK...USE FOR GUIDANCE ONLY...ERRORS MAY BE LARGE.
.96 HOUR FORECAST HURRICANE NINE NEAR 15.5N 82.0W. MAXIMUM
SUSTAINED WINDS 65 KT GUSTS 80 KT.
.120 HOUR FORECAST HURRICANE NINE NEAR 17.0N 87.5W. MAXIMUM
SUSTAINED WINDS 65 KT GUSTS 80 KT.

FORECAST WINDS IN AND NEAR ACTIVE TROPICAL CYCLONES SHOULD BE
USED WITH CAUTION DUE TO UNCERTAINTY IN FORECAST TRACK...SIZE
AND INTENSITY.

.SYNOPSIS AND FORECAST.

.ATLC LOW PRES NEAR 15N42W 1009 MB. WITHIN 240 NM N SEMICIRCLE
OF LOW WINDS 20 TO 25 KT. SEAS 8 TO 10 FT.
.24 HOUR FORECAST LOW PRES...POSSIBLE TROPICAL CYCLONE...NEAR
16N50W 1010 MB. WITHIN 240 NM N SEMICIRCLE OF LOW WINDS 20 TO 30
KT. SEAS 8 TO 11 FT.
.48 HOUR FORECAST LOW PRES...POSSIBLE TROPICAL CYCLONE...NEAR
17N55W 1010 MB. WITHIN 240 NM N SEMICIRCLE OF LOW WINDS 20 TO 30
KT. SEAS 8 TO 11 FT.

.ATLC AND CARIBBEAN TROPICAL WAVE FROM 23N66W TO 12N71W.
CARIBBEAN N OF 17N BETWEEN 70W AND 76W INCLUDING WINDWARD
PASSAGE AND ATLC S OF 22N BETWEEN 65W AND 71W NE TO E WINDS 20
TO 25 KT. SEAS TO 8 FT. SCATTERED TO NUMEROUS SHOWERS AND TSTMS.
.24 HOUR FORECAST TROPICAL WAVE FROM 22N73W TO 12N76W. CARIBBEAN
N OF 17N BETWEEN 70W AND 76W AND ATLC S OF 22N BETWEEN 7W AND
77W E WINDS 20 TO 25 KT. SEAS LESS THAN 8 FT.
.36 HOUR FORECAST WINDS 20 KT OR LESS. SEAS LESS THAN 8 FT.

.ATLC 36 HOUR FORECAST WITHIN AREA BOUNDED BY 21N35W TO 13N35W
TO 13N39W TO 21N41W TO 21N35W WINDS 20 KT OR LESS. SEAS 8 FT.
.48 HOUR FORECAST WITHIN AREA BOUNDED BY 18N38W TO 13N38W TO
13N44W TO 18N44W TO 18N38W 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.
.06 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 COBB. NATIONAL HURRICANE CENTER.



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