

139 

FZNT01 KWBC 260934

HSFAT1



HIGH SEAS FORECAST FOR METAREA IV 

NWS OCEAN PREDICTION CENTER WASHINGTON DC 

1030 UTC FRI AUG 26 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SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS 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 0600 UTC AUG 26 

24 HOUR FORECAST VALID 0600 UTC AUG 27 

48 HOUR FORECAST VALID 0600 UTC AUG 28 



.WARNINGS. 



...GALE WARNING... 

.LOW 53N54W 1004 MB MOVING E 15 KT. OVER FORECAST WATERS WITHIN 

480 NM S QUADRANT WINDS TO 25 KT. SEAS TO 8 FT. 

.24 HOUR FORECAST COMPLEX LOW WITH MEAN CENTER NEAR 54N45W 1005 

MB. BETWEEN 180 NM AND 480 NM N QUADRANT WINDS 25 TO 35 KT. SEAS 

8 TO 12 FT. ELSEWHERE WITHIN 600 NM N...360 NM E...AND 480 NM S 

QUADRANTS WINDS TO 25 KT. SEAS TO 9 FT. 

.48 HOUR FORECAST COMPLEX LOW WITH MEAN CENTER NEAR 53N42W 1001 

MB WITH A FRONT FROM CENTER TO 48N40W TO 42N46W TO 41N53W. 

WITHIN 300 NM N AND NW SEMICIRCLES AND WITHIN 300 NM E AND SE OF 

FRONT FROM 48N TO 42N WINDS 25 TO 35 KT. SEAS 8 TO 12 FT. ALSO 

WITHIN 360 NM N AND 600 NM S SEMICIRCLES...AND ELSEWHERE WITHIN 

420 NM E AND SE OF THE FRONT WINDS TO 25 KT. SEAS TO 10 FT. 



.SYNOPSIS AND FORECAST. 



.24 HOUR FORECAST LOW 49N59W 1008 MB. OVER FORECAST WATERS 

WITHIN 360 NM S AND SE QUADRANTS WINDS TO 25 KT. SEAS LESS THAN 

8 FT. 

.48 HOUR FORECAST LOW MERGED WITH COMPLEX LOW 53N42W NOTED 

ABOVE. 

.48 HOUR FORECAST EXCEPT WHERE NOTED BELOW IN ASSOCIATION WITH 

TROPICAL STORM GASTON OVER FORECAST WATERS S OF 33N BETWEEN 52W 

AND 59W WINDS 20 TO 30 KT. SEAS 8 TO 12 FT. 



.DENSE FOG. VSBY OCCASIONALLY LESS THAN 1 NM OVER FORECAST 

WATERS N OF 60N BETWEEN 49W AND 65W AND FROM 47N TO 56N BETWEEN 

46W AND 55W. 

.24 HOUR FORECAST DENSE FOG N OF 54N BETWEEN 43W AND 56W AND 

WITHIN 300 NM E AND SE OF A LINE FROM 54N43W TO 48N54W. 

.48 HOUR FORECAST DENSE FOG FROM 45N TO 56N E OF 42W. 



.HIGH 42N47W 1025 MB MOVING E 15 KT. 

.24 HOUR FORECAST HIGH 41N38W 1025 MB. 

.48 HOUR FORECAST HIGH E OF THE FORECAST AREA. 



.HIGH 33N45W 1023 MB NEARLY STATIONARY. 

.24 HOUR FORECAST LITTLE CHANGE. 

.48 HOUR FORECAST HIGH 33N44W 1021 MB. 



.HIGH 38N69W 1020 MB NEARLY STATIONARY. 

.24 HOUR FORECAST LITTLE CHANGE. 

.48 HOUR FORECAST HIGH DISSIPATED. 



.FORECASTER VUKITS. 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 FRI AUG 26.

24 HOUR FORECAST VALID 0600 UTC SAT AUG 27.

48 HOUR FORECAST VALID 0600 UTC SUN AUG 28.



.WARNINGS.



...HURRICANE WARNING...

.TROPICAL STORM GASTON NEAR 23.9N 47.6W 997 MB AT 0900 UTC AUG

26 MOVING NW OR 320 DEG AT 15 KT. MAXIMUM SUSTAINED WINDS 55 KT

GUSTS 65 KT. TROPICAL STORM FORCE WINDS WITHIN 110 NM NE...80 NM

SE...30 NM SW AND 100 NM NW QUADRANTS. SEAS 12 FT OR GREATER

WITHIN 150 NM OF CENTER EXCEPT 210 NM NE QUADRANT WITH SEAS TO

26 FT. ELSEWHERE WITHIN 240 NM NE AND 90 NM SW SEMICIRCLES WINDS

20 TO 33 KT. SEAS 8 TO 12 FT. REMAINDER OF AREA FROM 20N TO 28N

BETWEEN 42W AND 52W WINDS 20 KT OR LESS. SEAS TO 10 FT IN MIXED

SWELL.

.24 HOUR FORECAST HURRICANE GASTON NEAR 27.0N 52.1W. MAXIMUM

SUSTAINED WINDS 65 KT GUSTS 80 KT. TROPICAL STORM FORCE WINDS

WITHIN 120 NM NE...90 NM SE...50 NM SW AND 110 NM NW QUADRANTS.

SEAS 12 FT OR GREATER WITHIN 210 NM OF CENTER EXCEPT 270 NM NE

QUADRANT WITH SEAS TO 30 FT. ELSEWHERE WITHIN 270 NM NE AND 150

NM SW SEMICIRCLES WINDS 20 TO 33 KT. SEAS 9 TO 12 FT. REMAINDER

OF AREA OVER FORECAST WATERS N OF 24N BETWEEN 46W AND 56W WINDS

20 KT OR LESS. SEAS TO 11 FT IN MIXED SWELL.

.48 HOUR FORECAST HURRICANE GASTON NEAR 29.2N 55.7W. MAXIMUM

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

WITHIN 120 NM NW AND SE QUADRANTS...130 NM NE QUADRANT AND 90 NM

SW QUADRANT. SEAS 12 FT OR GREATER WITHIN 210 NM OF CENTER WITH

SEAS TO 35 FT. ELSEWHERE WITHIN 240 NM OF CENTER WINDS 20 TO 33

KT. SEAS 10 TO 12 FT. REMAINDER OF AREA OVER FORECAST WATERS N

OF 26N BETWEEN 49W AND 61W WINDS 20 KT OR LESS. SEAS TO 11 FT IN

MIXED SWELL.

.72 HOUR FORECAST HURRICANE GASTON NEAR 30.8N 57.1W. MAXIMUM

SUSTAINED WINDS 95 KT GUSTS 115 KT.

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

.96 HOUR FORECAST HURRICANE GASTON NEAR 32.2N 55.8W. MAXIMUM

SUSTAINED WINDS 95 KT GUSTS 115 KT.

.120 HOUR FORECAST HURRICANE GASTON NEAR 34.0N 51.5W. MAXIMUM

SUSTAINED WINDS 90 KT GUSTS 110 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 21N75W 1009 MB. WITHIN 150 NM NE QUADRANT OF

LOW E TO SE WINDS 20 TO 25 KT. SEAS TO 10 FT. 

.24 HOUR FORECAST LOW PRES NEAR 22N78W 1010 MB. WITHIN 180 NM NE

QUADRANT OF LOW SE WINDS 20 TO 25 KT. SEAS TO 8 FT. 

.48 HOUR FORECAST LOW PRES NEAR 23N81W 1010 MB. WINDS 20 KT OR

LESS. SEAS LESS THAN 8 FT.



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



$$

.FORECASTER MUNDELL. NATIONAL HURRICANE CENTER.

