

315 

FZNT01 KWBC 182152

HSFAT1



HIGH SEAS FORECAST FOR METAREA IV 

NWS OCEAN PREDICTION CENTER WASHINGTON DC 

2230 UTC THU AUG 18 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SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS 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 18 

24 HOUR FORECAST VALID 1800 UTC AUG 19 

48 HOUR FORECAST VALID 1800 UTC AUG 20 



.WARNINGS. 



...GALE WARNING... 

.LOW 45N53W 999 MB MOVING E 20 KT. WITHIN 180 NM N AND 360 NM S 

SEMICIRCLES WINDS 25 TO 35 KT. SEAS 8 TO 13 FT. 

.24 HOUR FORECAST LOW 47N45W 997 MB. WITHIN 240 NM N AND 360 NM 

S SEMICIRCLES WINDS 25 TO 40 KT. SEAS 8 TO 14 FT. 

.48 HOUR FORECAST LOW 50N31W 996 MB. OVER FORECAST WATERS E OF 

38W FROM 51N TO 43N WINDS 20 TO 30 KT. SEAS 8 TO 12 FT. 



.SYNOPSIS AND FORECAST. 



.LOW 63N37W 1001 MB NEARLY STATIONARY. WITHIN 120 NM OF LOW 

CENTER WINDS TO 25 KT. SEAS TO 8 FT. 

.24 HOUR FORECAST LOW 63N37W 1008 MB. WITHIN 180 NM W AND NW 

QUADRANTS WINDS TO 25 KT. SEAS TO 8 FT. 

.48 HOUR FORECAST LOW DISSIPATED AND CONDITIONS DIMINISHED. 



.LOW 39N73W 1015 MB MOVING E 10 KT. WITHIN 240 NM S QUADRANT 

WINDS TO 25 KT. SEAS LESS THAN 8 FT. 

.24 HOUR FORECAST LOW 39N62W 1011 MB. WITHIN 180 NM S QUADRANT 

WINDS TO 25 KT. SEAS TO 8 FT. 

.48 HOUR FORECAST LOW 37N53W 1011 MB. WITHIN 180 NM S AND 120 N 

SEMICIRCLES WINDS TO 25 KT. SEAS TO 8 FT. 



.24 HOUR FORECAST LOW 46N58W 1006 MB. WITHIN 240 NM S QUADRANT 

WINDS TO 25 KT. SEAS TO 8 FT. 

.48 HOUR FORECAST LOW 41N53W 1012 MB. WITHIN 180 N SEMICIRCLE 

WINDS TO 25 KT. SEAS TO 8 FT. 



.DENSE FOG WITH VSBY OCCASIONALLY LESS THAN 1 NM FROM 43N TO 52N 

BETWEEN 56W AND 45W. 

.24 HOUR FORECAST DENSE FOG FROM 44N TO 48N BETWEEN 45W AND 35W. 

.48 HOUR FORECAST AREA OF DENSE FOG E OF 35W. 



.HIGH 32N67W 1021 MB NEARLY STATIONARY WILL DRIFT S. 

.24 HOUR FORECAST HIGH S OF WATERS.



.HIGH 43N37W 1019 MB MOVING SE 20 KT. 

.24 HOUR FORECAST HIGH E OF AREA. 



.HIGH 40N66W 1016 MB MOVING SE 10 KT. 

.24 HOUR FORECAST HIGH 38N56W 1014 MB.

.48 HOUR FORECAST HIGH 37N44W 1016 MB.



.HIGH 54N54W 1013 MB MOVING NE 10 KT. 

.24 HOUR FORECAST HIGH 57N49W 1010 MB. 

.48 HOUR FORECAST HIGH DISSIPATED.  



.24 HOUR FORECAST HIGH 53N63W 1015 MB.

.48 HOUR FORECAST HIGH 47N54W 1020 MB. 



.FORECASTER SIENKIEWICZ. 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 THU AUG 18.

24 HOUR FORECAST VALID 1800 UTC FRI AUG 19.

48 HOUR FORECAST VALID 1800 UTC SAT AUG 20.



.WARNINGS.



...TROPICAL STORM WARNING...

.TROPICAL STORM FIONA NEAR 17.0N 41.3W 1006 MB AT 2100 UTC AUG

18 MOVING NW OR 305 DEG AT 9 KT. MAXIMUM SUSTAINED WINDS 40 KT

GUSTS 50 KT. TROPICAL STORM FORCE WINDS WITHIN 30 NM N

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

60 NM N SEMICIRCLE AND 30 NM S SEMICIRCLE WITH SEAS TO 15 FT.

ELSEWHERE WITHIN 180 NM NE AND 120 NM SW SEMICIRCLES WINDS 20 TO

33 KT. SEAS 8 TO 12 FT.

.24 HOUR FORECAST TROPICAL STORM FIONA NEAR 18.5N 44.3W. MAXIMUM

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

WITHIN 50 NM N SEMICIRCLE...30 NM SE QUADRANT AND 0 NM SW

QUADRANT. SEAS 12 FT OR GREATER WITHIN 60 NM OF CENTER WITH SEAS

TO 18 FT. ELSEWHERE WITHIN 150 NM OF CENTER WINDS 20 TO 33 KT.

SEAS 8 TO 12 FT.

.48 HOUR FORECAST TROPICAL STORM FIONA NEAR 20.8N 48.0W. MAXIMUM

SUSTAINED WINDS 35 KT GUSTS 45 KT. LITTLE CHANGE IN RADIUS OF

TROPICAL STORM FORCE WINDS AND SEAS 12 FT OR GREATER. ELSEWHERE

WITHIN 150 NM OF CENTER WINDS 20 TO 33 KT. SEAS 8 TO 12 FT.

.72 HOUR FORECAST TROPICAL STORM FIONA NEAR 23.0N 51.7W. MAXIMUM

SUSTAINED WINDS 35 KT GUSTS 45 KT.

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

.96 HOUR FORECAST TROPICAL STORM FIONA NEAR 25.0N 55.0W. MAXIMUM

SUSTAINED WINDS 35 KT GUSTS 45 KT.

.120 HOUR FORECAST TROPICAL STORM FIONA NEAR 27.2N 56.6W.

MAXIMUM SUSTAINED WINDS 35 KT GUSTS 45 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.



.CARIBBEAN FROM 11N TO 14N BETWEEN 71W AND 77W...INCLUDING WITHIN

90 NM OF COAST OF COLOMBIA...NE TO E WINDS 20 TO 30 KT. SEAS 8

TO 10 FT. FROM 10.5N TO 15N BETWEEN 77W AND 81W WINDS 20 KT OR

LESS. SEAS 8 TO 10 FT IN NE TO E SWELL. 

.24 HOUR FORECAST FROM 11N TO 14N BETWEEN 71W AND

79W...INCLUDING WITHIN 90 NM OF COAST OF COLOMBIA...NE TO E

WINDS 20 TO 30 KT. SEAS 8 TO 12 FT. ELSEWHERE FROM 10.5N TO 16N

BETWEEN 73W AND 81W WINDS 20 KT OR LESS. SEAS 8 TO 10 FT IN NE TO

E SWELL. 

.48 HOUR FORECAST FROM 11N TO 14N BETWEEN 72W AND

79W...INCLUDING WITHIN 90 NM OF COAST OF COLOMBIA...E WINDS 20

TO 25 KT. SEAS TO 9 FT.



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



$$

.FORECASTER MCELROY. NATIONAL HURRICANE CENTER.

