

784 

FZNT01 KWBC 311803 AAA

HSFAT1



HIGH SEAS FORECAST FOR METAREA IV...UPDATED PART 2

NWS OCEAN PREDICTION CENTER WASHINGTON DC

1630 UTC WED AUG 31 2016 



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SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS 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). 



PAN PAN 



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



SYNOPSIS VALID 1200 UTC AUG 31 

24 HOUR FORECAST VALID 1200 UTC SEP 01 

48 HOUR FORECAST VALID 1200 UTC SEP 02 



.WARNINGS. 



.FOR INFORMATION REGARDING TROPICAL DEPRESSION NINE PLEASE SEE 

MIAMI SECTION PART II BELOW. 



...HURRICANE WARNING... 

.HURRICANE GASTON NEAR 34.0N 48.6W 961 MB AT 1500 UTC AUG 31 

MOVING NE OR 060 DEG AT 13 KT. MAXIMUM SUSTAINED WINDS 100 KT 

GUSTS 120 KT. TROPICAL STORM FORCE WINDS WITHIN 120 NM NE 

QUADRANT...150 NM SE QUADRANT...120 NM SW QUADRANT...AND 90 NM 

NW QUADRANT. SEAS 12 FT OR GREATER WITHIN 240 NM E SEMICIRCLE 

AND 180 NM W SEMICIRCLE WITH SEAS TO 45 FT. ELSEWHERE FROM 31N 

TO 38N BETWEEN 41W AND 54W WINDS 20 TO 33 KT. SEAS TO 11 FT. 

.24 HOUR FORECAST HURRICANE GASTON NEAR 36.9N 41.7W. MAXIMUM 

SUSTAINED WINDS 85 KT GUSTS 105 KT. LITTLE CHANGE IN RADIUS OF 

TROPICAL STORM FORCE WINDS. SEAS 12 FT OR GREATER WITHIN 240 NM 

OF CENTER EXCEPT 300 NM NW QUADRANT WITH SEAS TO 43 FT. 

ELSEWHERE FROM 31N TO 42N BETWEEN 35W AND 46W WINDS 20 TO 33 KT. 

SEAS TO 11 FT. 

.48 HOUR FORECAST TROPICAL STORM GASTON NEAR 38.8N 32.2W. 

MAXIMUM SUSTAINED WINDS 60 KT GUSTS 75 KT. TROPICAL STORM FORCE 

WINDS WITHIN 100 NM NE QUADRANT...140 NM SE QUADRANT...120 NM SW 

QUADRANT...AND 80 NM NW QUADRANT. SEAS 12 FT OR GREATER WITHIN 

300 NM OF CENTER EXCEPT 420 NM NW QUADRANT WITH SEAS TO 35 FT. 

.72 HOUR FORECAST TROPICAL STORM GASTON NEAR 40.0N 24.5W. 

MAXIMUM SUSTAINED WINDS 40 KT GUSTS 50 KT. 

.EXTENDED OUTLOOK...USE FOR GUIDANCE ONLY...ERRORS MAY BE LARGE. 

.96 HOUR FORECAST POST-TROPICAL GASTON NEAR 43.0N 18.0W. MAXIMUM 

SUSTAINED WINDS 30 KT GUSTS 40 KT. 

.120 HOUR FORECAST...DISSIPATED. 



...TROPICAL STORM WARNING... 

.TROPICAL DEPRESSION EIGHT NEAR 35.5N 73.1W 1010 MB AT 1500 UTC 

AUG 31 MOVING NE OR 055 DEG AT 13 KT. MAXIMUM SUSTAINED WINDS 30 

KT GUSTS 40 KT. SEAS TO 9 FT. 

.24 HOUR FORECAST TROPICAL STORM EIGHT NEAR 38.8N 66.5W. MAXIMUM 

SUSTAINED WINDS 40 KT GUSTS 50 KT. TROPICAL STORM FORCE WINDS 

WITHIN 40 NM NE QUADRANT...60 NM SE QUADRANT...40 NM SW 

QUADRANT...AND 0 NM NW QUADRANT. SEAS 12 FT OR GREATER WITHIN 60 

NM E AND S SEMICIRCLES WITH SEAS TO 14 FT. ELSEWHERE WITHIN 300 

NM S AND SE QUADRANTS WINDS 20 TO 33 KT. SEAS TO 11 FT. 

.48 HOUR FORECAST POST-TROPICAL EIGHT NEAR 43.0N 53.5W 1006 MB. 

WITHIN 180 NM S AND SE QUADRANTS WINDS 25 TO 35 KT. SEAS 8 TO 14 

FT. ELSEWHERE WITHIN 240 NM E AND 420 NM S QUADRANTS WINDS 20 TO 

30 KT. SEAS TO 11 FT. 



...GALE WARNING... 

.LOW 53N41W 984 MB MOVING NE 15 KT. WITHIN 240 NM N AND NE AND 

SW AND 420 NM S QUADRANTS WINDS 25 TO 40 KT. SEAS 8 TO 16 

FT...EXCEPT SW QUADRANT 12 TO 21 FT. 

.24 HOUR FORECAST LOW E OF AREA 56N33W 988 MB. FROM 47N TO 54N 

BETWEEN 35W AND 43W WINDS 25 TO 40 KT. SEAS 12 TO 24 FT. 

ELSEWHERE FROM 46N TO 59N BETWEEN 35W AND 45W WINDS 20 TO 30 KT. 

SEAS 8 TO 15 FT.  

.48 HOUR FORECAST LOW AND CONDITIONS E OF FORECAST AREA. 



...GALE WARNING... 

.24 HOUR FORECAST LOW 47N58W 1011 MB. FROM 42N TO 47N BETWEEN 

44W AND 57W AREA OF W TO SW WINDS TO 25 KT. SEAS TO 8 FT. 

.48 HOUR FORECAST LOW 51N35W 1001 MB. WITHIN 300 NM SW QUADRANT 

WINDS 25 TO 35 KT. SEAS 8 TO 17 FT. 



.SYNOPSIS AND FORECAST. 



.FROM 57N TO 60N BETWEEN 42W AND 50W AREA OF E TO NE WINDS TO 25 

KT. SEAS TO 9 FT. 

.24 HOUR FORECAST CONDITIONS DIMINISHED. 



.24 HOUR FORECAST NEW LOW 34N78W 1009 MB. FROM 31N TO 34N W OF 

71W WINDS 20 TO 30 KT. SEAS TO 10 FT. 

.48 HOUR FORECAST LOW 39N63W 1006 MB. N OF 31N WITHIN 420 NM S 

OF A LINE FROM THE LOW TO 35N71W WINDS 20 TO 30 KT. SEAS 8 TO 13 

FT. 

.48 HOUR FORECAST NEW LOW 62N43W 998 MB. WITHIN 240 NM S 

QUADRANT WINDS TO 25 KT. SEAS TO 8 FT. 



.48 HOUR FORECAST N OF 58N BETWEEN 50W AND 63W AREA OF N TO NW 

WINDS TO 25 KT. SEAS TO 8 FT. 



.DENSE FOG. VSBY OCCASIONALLY LESS THAN 1 NM FROM 52N TO 58N 

BETWEEN 35W AND 44W. 

.24 HOUR FORECAST CONDITIONS IMPROVED. 



.HIGH 41N57W 1020 MB MOVING E 15 KT. 

.24 HOUR FORECAST HIGH 40N51W 1022 MB. 

.48 HOUR FORECAST HIGH 37N43W 1021 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 WED AUG 31.

24 HOUR FORECAST VALID 1200 UTC THU SEP 01.

48 HOUR FORECAST VALID 1200 UTC FRI SEP 02.



.WARNINGS.



...ATLC HURRICANE WARNING...

.HURRICANE GASTON N OF FORECAST AREA NEAR 34.0N 48.5W. MAXIMUM

SUSTAINED WINDS 100 KT GUSTS 120 KT. AREA OF TROPICAL STORM

FORCE WINDS N OF 31N. ELSEWHERE OVER FORECAST WATERS WITHIN 270

NM S SEMICIRCLE WINDS 20 TO 33 KT. SEAS 12 TO 18 FT. REMAINDER

OF AREA N OF 28N BETWEEN 44W AND 56W WINDS 20 KT OR LESS. SEAS 8

TO 12 FT IN MIXED SWELL.

.24 HOUR FORECAST HURRICANE GASTON NEAR 36.9N 41.7W. MAXIMUM

SUSTAINED WINDS 85 KT GUSTS 105 KT. AREA OF TROPICAL STORM FORCE

WINDS AND 12 FT SEAS N OF 31N. OVER FORECAST WATERS N OF 30N

BETWEEN 37W AND 50W WINDS 20 KT OR LESS. SEAS 8 TO 10 FT IN

MIXED SWELL.

.48 HOUR FORECAST TROPICAL STORM GASTON NEAR 38.8N 32.2W.

MAXIMUM SUSTAINED WINDS 70 KT GUSTS 85 KT. OVER FORECAST WATERS

WINDS 20 KT OR LESS. SEAS LESS THAN 8 FT.

.72 HOUR FORECAST TROPICAL STORM GASTON NEAR 40.0N 24.5W.

MAXIMUM SUSTAINED WINDS 40 KT GUSTS 50 KT.

EXTENDED OUTLOOK...USE FOR GUIDANCE ONLY...ERRORS MAY BE LARGE.

.96 HOUR FORECAST POST-TROPICAL GASTON NEAR 43.0N 18.0W. MAXIMUM

SUSTAINED WINDS 30 KT GUSTS 40 KT.

.120 HOUR FORECAST...DISSIPATED.



...GULF OF MEXICO TROPICAL STORM WARNING...

.TROPICAL STORM HERMINE NEAR 24.7N 88.0W 1000 MB AT 1800 UTC AUG

31 MOVING N 2 KT. MAXIMUM SUSTAINED WINDS 35 KT GUSTS 45 KT.

WITHIN 60 NM OF CENTER EXCEPT 300 NM E AND 180 NM NW QUADRANTS

WINDS 20 TO 30 KT. SEAS TO 10 FT.

.24 HOUR FORECAST TROPICAL STORM HERMINE NEAR 27.3N 86.5W.

MAXIMUM SUSTAINED WINDS 45 KT GUSTS 55 KT. TROPICAL STORM FORCE

WINDS WITHIN 60 NM E SEMICIRCLE AND 30 NM W SEMICIRCLE. SEAS 12

FT OR GREATER WITHIN 120 NM E SEMICIRCLE WITH SEAS TO 15 FT.

ELSEWHERE WITHIN 90 NM OF CENTER...EXCEPT 300 NM NE AND 240 NM

SE QUADRANTS WINDS 20 TO 33 KT. SEAS 8 TO 11 FT.

.48 HOUR FORECAST TROPICAL STORM HERMINE INLAND NEAR 30.9N 82.4W.

MAXIMUM SUSTAINED WINDS 50 KT GUSTS 60 KT. TROPICAL STORM FORCE

WINDS WITHIN 80 NM E SEMICIRCLE...50 NM SW QUADRANT AND 60 NM NW

QUADRANT. OVER FORECAST WATERS WITHIN 300 NM SE SEMICIRCLE WINDS

20 TO 33 KT. SEAS 8 TO 12 FT.

.72 HOUR FORECAST TROPICAL STORM HERMINE OVER WATER NEAR 35.0N

75.0W. MAXIMUM SUSTAINED WINDS 55 KT GUSTS 65 KT.

EXTENDED OUTLOOK...USE FOR GUIDANCE ONLY...ERRORS MAY BE LARGE.

.96 HOUR FORECAST POST-TROPICAL EXTRATROPICAL HERMINE NEAR 38.0N

70.0W. MAXIMUM SUSTAINED WINDS 55 KT GUSTS 65 KT.

.120 HOUR FORECAST POST-TROPICAL EXTRATROPICAL HERMINE NEAR

40.0N 69.0W. MAXIMUM SUSTAINED WINDS 55 KT GUSTS 65 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 N OF 27N W OF 78W SE TO S WINDS 20 TO 25 KT. SEAS 8 FT.

.24 HOUR FORECAST N OF 30N W OF 76W SW TO W WINDS 20 TO 25 KT.

SEAS 8 FT.

.48 HOUR FORECAST AREA DESCRIBED IN ASSOCIATION WITH FORECAST

T.S. HERMINE. 



.ATLC 24 HOUR FORECAST TROPICAL WAVE S OF 20N ALONG 37W. FROM

18N TO 24N E OF 38W WINDS 20 KT OR LESS. SEAS 8 FT IN NE TO E

SWELL.

.48 HOUR FORECAST TROPICAL WAVE S OF 20N ALONG 47W. FROM 16N TO

22N BETWEEN 44W AND 50W WINDS 20 TO 25 KT. SEAS 8 TO 10 FT.

FROM 16N TO 23N BETWEEN 37W AND 44W WINDS 20 KT OR LESS. SEAS TO

10 FT IN E SWELL.



.CARIBBEAN FROM 11N TO 17N BETWEEN 70W AND 78W E WINDS 20 TO 25

KT. SEAS 8 TO 11 FT.

.24 HOUR FORECAST FROM 12N TO 17N BETWEEN 70W AND 80W E WINDS 20

TO 25 KT. SEAS 8 TO 10 FT. 

.48 HOUR FORECAST FROM 12N TO 15N BETWEEN 74W AND 77W WINDS

20KTOR LESS. SEAS 8 FT.



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



$$

.FORECASTER MCELROY/COBB. NATIONAL HURRICANE CENTER.

