

690 

FZNT01 KWBC 202214

HSFAT1



HIGH SEAS FORECAST FOR METAREA IV 

NWS OCEAN PREDICTION CENTER WASHINGTON DC 

2230 UTC SAT AUG 20 2016 



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SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS 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). 



SECURITE 



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



SYNOPSIS VALID 1800 UTC AUG 20 

24 HOUR FORECAST VALID 1800 UTC AUG 21 

48 HOUR FORECAST VALID 1800 UTC AUG 22 



.WARNINGS. 



...GALE WARNING... 

.LOW E OF AREA NEAR 50N31W 993 MB MOVING NE 20 KT WILL SLOW AND 

TURN MORE W AFTER 24 HOURS. OVER FORECAST WATERS E OF A LINE 

FROM 53N37W TO 42N42W AREA OF N TO NW WINDS 20 TO 30 KT. SEAS TO 

12 FT...HIGHEST NEAR 48N35W.

.24 HOUR FORECAST LOW E OF AREA NEAR 57N22W 993 MB. E OF A LINE 

FROM 63N35W TO 55N40W TO 49N37W AREA OF N TO NW WINDS TO 25 KT. 

SEAS TO 8 FT.

.36 HOUR FORECAST LOW E OF AREA NEAR 57N27W 992 MB. FROM 54N TO 

59N E OF 37W AREA OF NW WINDS 25 TO 35 KT. SEAS 9 TO 13 FT. 

ELSEWHERE FROM 51N TO 62N E OF 40W WINDS TO 25 KT. SEAS TO 9 FT.

.48 HOUR FORECAST LOW E OF AREA NEAR 56N25W 992 MB. E OF A LINE 

FROM 62N35W TO 57N40W TO 51N35W AREA OF N TO NW WINDS 20 TO 30 

KT. SEAS TO 11 FT.



...GALE WARNING... 

.24 HOUR FORECAST INLAND LOW 53N74W 991 MB. OVER FORECAST WATERS 

FROM 58N TO 62N W OF 58W AREA OF E TO SE WINDS TO 25 KT. SEAS 

LESS THAN 8 FT.

.36 HOUR FORECAST INLAND LOW 59N71W 988 MB. FROM 60N TO 62N W OF 

60W AREA OF E WINDS 25 TO 35 KT. SEAS 8 TO 11 FT.

.48 HOUR FORECAST LOW W OF AREA 63N75W 985 MB. FRONT TO EXTEND 

FROM LOW TO 60N61W TO 55N60W. FROM 60N TO 64N BETWEEN THE FRONT 

AND 56W WINDS 25 TO 40 KT. SEAS 9 TO 15 FT. ELSEWHERE WITHIN 300 

NM NE AND E OF FRONT WINDS 20 TO 30 KT. SEAS TO 10 FT.



.SYNOPSIS AND FORECAST. 



.LOW 35N73W 1010 MB MOVING NE 10 KT. WINDS LESS THAN 25 KT. SEAS 

LESS THAN 8 FT.

.24 HOUR FORECAST LOW 37N69W 1010 MB. WITHIN 300 NM S AND 180 NM 

E QUADRANTS WINDS TO 25 KT. SEAS TO 8 FT. 

.48 HOUR FORECAST LOW AND ASSOCIATED CONDITIONS MERGED WITH 

INLAND LOW 47N66W DESCRIBED BELOW.



.36 HOUR FORECAST NEW LOW 41N71W 1007 MB. FRONT TO EXTEND FROM 

LOW TO 35N74W TO 31N80W. W OF FRONT FROM 35N TO 40N WINDS TO 25 

KT. SEAS LESS THAN 8 FT.

.48 HOUR FORECAST INLAND LOW 47N66W 1004 MB. FROM 35N TO 50N 

BETWEEN 57W AND 64W S WINDS 20 TO 30 KT. SEAS TO 10 FT...HIGHEST 

NEAR 40N61W.



.48 HOUR FORECAST NEW LOW 51N43W 1018 MB. WITHIN 240 NM S AND 

180 NM SW QUADRANTS WINDS TO 25 KT. SEAS TO 8 FT. 



.DENSE FOG. 24 HOUR FORECAST VSBY OCCASIONALLY LESS THAN 1 NM 

OVER FORECAST WATERS W OF A LINE FROM 66N58W TO 62N62W TO 51N51W.

.48 HOUR FORECAST DENSE FOG W OF A LINE FROM 63N61W TO 60N54W TO 

53N48W TO 42N52W AND E OF 67W.



.HIGH 47N51W 1021 MB MOVING SE 15 KT. 

.24 HOUR FORECAST HIGH 45N46W 1027 MB. 

.48 HOUR FORECAST HIGH 41N40W 1029 MB.



.HIGH 47N58W 1021 MB MOVING E 15 KT.

.24 HOUR FORECAST HIGH MERGED WITH HIGH 45N46W.



.HIGH 59N50W 1019 MB MOVING SE 10 KT.

.24 HOUR FORECAST HIGH 55N46W 1020 MB. 

.48 HOUR FORECAST HIGH 55N43W 1021 MB. 



.FORECASTER BANCROFT. 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 1800 UTC SAT AUG 20.

24 HOUR FORECAST VALID 1800 UTC SUN AUG 21.

48 HOUR FORECAST VALID 1800 UTC MON AUG 22.



.WARNINGS.



...TROPICAL STORM WARNING...

.TROPICAL STORM FIONA NEAR 21.2N 49.1W 1008 MB AT 2100 UTC AUG

20 MOVING NW OR 305 DEG AT 13 KT. MAXIMUM SUSTAINED WINDS 35 KT

GUSTS 45 KT. TROPICAL STORM FORCE WINDS WITHIN 60 NM N

SEMICIRCLE AND 0 NM S SEMICIRCLE. SEAS 12 FT OR GREATER WITHIN 0

NM S SEMICIRCLE...90 NM NE QUADRANT AND 60 NM NW QUADRANT WITH

SEAS TO 13 FT. ELSEWHERE WITHIN 210 NM NE AND 90 NM SW

SEMICIRCLES WINDS 20 TO 33 KT. SEAS 8 TO 11 FT.

.24 HOUR FORECAST TROPICAL DEPRESSION FIONA NEAR 23.1N 53.6W.

MAXIMUM SUSTAINED WINDS 30 KT GUSTS 40 KT. WITHIN 210 NM NE AND

60 NM SW SEMICIRCLES WINDS 20 TO 30 KT. SEAS 8 TO 12 FT.

.48 HOUR FORECAST POST-TROPICAL REMNANT LOW FIONA NEAR 25.0N

58.8W. MAXIMUM SUSTAINED WINDS 25 KT GUSTS 35 KT. WITHIN 180 NM

NE AND 60 NM SW SEMICIRCLES WINDS 20 TO 25 KT. SEAS 8 TO 11 FT.

.72 HOUR FORECAST POST-TROPICAL REMNANT LOW FIONA NEAR 27.0N

62.8W. MAXIMUM SUSTAINED WINDS 25 KT GUSTS 35 KT.

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

.96 HOUR FORECAST POST-TROPICAL REMNANT LOW FIONA NEAR 29.5N

65.3W. MAXIMUM SUSTAINED WINDS 25 KT GUSTS 35 KT.

.120 HOUR FORECAST...DISSIPATED.



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 12 HOUR FORECAST LOW PRES NEAR 12N41W 1009 MB. WITHIN 300

NM N SEMICIRCLE OF LOW NE TO E WINDS 20 TO 25 KT. SEAS TO 8 FT.

.24 HOUR FORECAST LOW PRES NEAR 12N43W 1009 MB. WITHIN 300 NM N

SEMICIRCLE OF LOW WINDS 20 KT OR LESS. SEAS TO 8 FT PRIMARILY

IN E SWELL.

.48 HOUR FORECAST LOW PRES NEAR 12N49W 1008 MB. WITHIN 420 NM N

SEMICIRCLE OF LOW E WINDS 20 KT OR LESS. SEAS TO 9 FT PRIMARILY

IN E SWELL.



.CARIBBEAN FROM 11N TO 14N BETWEEN 72W AND 78W NE TO E WINDS 20

TO 25 KT. SEAS TO 8 FT. FROM 11N TO 14N BETWEEN 78W TO 80W WINDS

20 KT OR LESS. SEAS 8 FT IN NE TO E SWELL.

.24 HOUR FORECAST FROM 10.5N TO S OF A LINE FROM 13N69W TO

16N74W TO 16N82W NE TO E WINDS 20 TO 30 KT. SEAS 8 TO 11 FT.

.48 HOUR FORECAST LITTLE CHANGE.



.GULF OF MEXICO 30 HOUR FORECAST FROM 20N TO 23N BETWEEN 88W AND

94W NE TO E WINDS 20 TO 25 KT. SEAS LESS THAN 8 FT.

.42 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 MCELROY. NATIONAL HURRICANE CENTER.

