High Seas Forecast
Issued by NWS

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845
FZNT01 KWBC 261608
HSFAT1

HIGH SEAS FORECAST FOR METAREA IV
NWS OCEAN PREDICTION CENTER WASHINGTON DC
1630 UTC SAT MAY 26 2018

CCODE/1:31:04:01:00/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SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS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.

SEE ANNOUNCEMENT OF PLANNED INMARSAT I-3 TO I-4 MIGRATION
IN 2018 AT OCEAN.WEATHER.GOV/GMDSS_NOTICE.PHP (LOWERCASE).

ONLY YOU KNOW THE WEATHER AT YOUR POSITION. REPORT IT TO THE
NATIONAL WEATHER SERVICE. EMAIL US AT
VOSOPS@NOAA.GOV(LOWERCASE).

FOR INFORMATION ON ATLANTIC ICEBERGS SEE INFORMATION FROM NORTH
AMERICAN ICE SERVICE AT HTTPS://OCEAN.WEATHER.GOV/ATL_TAB.SHTML

SECURITE

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

SYNOPSIS VALID 1200 UTC MAY 26.
24 HOUR FORECAST VALID 1200 UTC MAY 27.
48 HOUR FORECAST VALID 1200 UTC MAY 28.

.WARNINGS.

...STORM WARNING...
.LOW 48N53W 1002 MB MOVING E 15 KT. OVER FORECAST WATERS WITHIN
540 NM SE AND 360 NM NE QUADRANTS WINDS 25 TO 40 KT. SEAS 8 TO
13 FT.
.24 HOUR FORECAST LOW 49N43W 994 MB. FRONT TO EXTEND FROM LOW
CENTER TO 41N52W. WITHIN 240 NM SE OF THE FRONT WINDS 35 TO 45
KT. SEAS 11 TO 16 FT. ELSEWHERE WITHIN 480 NM NW...420 NM
NE...900 NM SW...AND 600 NM SE QUADRANTS WINDS 25 TO 35 KT. SEAS
TO 12 FT.
.36 HOUR FORECAST LOW 53N40W 980 MB. WITHIN 360 NM NW SEMICIRCLE
WINDS 40 TO 55 KT. SEAS 15 TO 23 FT.
.48 HOUR FORECAST LOW 55N37W 975 MB. WITHIN 300 NM W SEMICIRCLE
AND WITHIN 300 NM S QUADRANT WINDS 40 TO 55 KT. SEAS 14 TO 27
FT. ELSEWHERE WITHIN 720 NM S AND SW...600 NM NW...AND 540 NM N
QUADRANTS WINDS 25 TO 40 KT. SEAS 8 TO 16 FT.

...GALE WARNING...
.LOW 63N40W 992 MB MOVING NW 15 KT. OVER ICE FREE FORECAST
WATERS WITHIN 300 NM NE AND 480 NM SE QUADRANTS WINDS 35 TO 45
KT. SEAS 11 TO 22 FT. ELSEWHERE WITHIN 840 NM SE...660 NM
SW...AND 480 NM NW QUADRANTS WINDS 25 TO 35 KT. SEAS 8 TO 13 FT.
.24 HOUR FORECAST LOW DISSIPATED WITH NEW LOW TO FORM 62N42W
1009 MB. WITHIN 300 NM SE SEMICIRCLE WINDS 20 TO 30 KT. SEAS TO
12 FT.
.48 HOUR FORECAST LOW DISSIPATED AND ASSOCIATED CONDITIONS
DIMINISHED.

...GALE WARNING...
.LOW 45N64W 1003 MB MOVING E 20 KT. OVER FORECAST WATERS WITHIN
360 NM N OF A LINE FROM 37N72W TO 39N52W WINDS 25 TO 35 KT. SEAS
8 TO 14 FT.
.24 HOUR FORECAST LOW ABSORBED AND CONDITIONS DESCRIBED ABOVE
WITH LOW 49N43W.

...GALE WARNING...
.24 HOUR FORECAST OVER FORECAST WATERS WITHIN 300 NM N OF A LINE
FROM 39N60W TO 41N72W WINDS 20 TO 40 KT. SEAS TO 8 FT.
.48 HOUR FORECAST LOW 40N63W 1013 MB. WITHIN 300 NM OF LOW
CENTER WINDS 25 TO 35 KT. SEAS 8 TO 13 FT.

.SYNOPSIS AND FORECAST.

.DENSE FOG. VSBY OCCASIONALLY LESS THAN 1 NM WITHIN 90 NM OF
46N49W AND WITHIN 60 NM OF 42N68W.
.24 HOUR FORECAST DENSE FOG WITHIN 240 NM NW OF A LINE FROM
50N35W TO 46N43W.
.48 HOUR FORECAST DENSE FOG WITHIN 60 NM OF 40N67W.

.HIGH 34N58W 1023 MB NEARLY STATIONARY.
.24 HOUR FORECAST HIGH 33N58W 1023 MB.
.48 HOUR FORECAST HIGH 33N52W 1025 MB.

.HIGH 52N36W 1023 MB MOVING NE 15 KT.
.24 HOUR FORECAST HIGH MOVED E OF AREA.

.48 HOUR FORECAST HIGH 44N50W 1030 MB.

.FORECASTER SOMMERVILLE. 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 SAT MAY 26.
24 HOUR FORECAST VALID 1200 UTC SUN MAY 27.
48 HOUR FORECAST VALID 1200 UTC MON MAY 28.

.WARNINGS.

...TROPICAL STORM WARNING...
.SUBTROPICAL STORM ALBERTO NEAR 21.6N 84.9W 1005 MB AT 1500 UTC
MAY 26 MOVING N OR 010 DEG AT 9 KT. MAXIMUM SUSTAINED WINDS 35
KT GUSTS 45 KT. TROPICAL STORM FORCE WINDS WITHIN 0 NM W
SEMICIRCLE...120 NM NE QUADRANT AND 100 NM SE QUADRANT.
ELSEWHERE WITHIN 180 NM E QUADRANT...INCLUDING YUCATAN
CHANNEL...WINDS 20 TO 33 KT. SEAS 8 TO 10 FT.
.24 HOUR FORECAST SUBTROPICAL STORM ALBERTO NEAR 26.0N 85.1W.
MAXIMUM SUSTAINED WINDS 45 KT GUSTS 55 KT. TROPICAL STORM FORCE
WINDS WITHIN 120 NM NE QUADRANT...100 NM SE QUADRANT...40 NM SW
QUADRANT...AND 90 NM NW QUADRANT. SEAS 12 FT OR GREATER WITHIN
150 NM E SEMICIRCLE WITH SEAS TO 17 FT. ELSEWHERE WITHIN AREA
BOUNDED BY 29N88W TO 29N83W TO 24N81W TO 24N86W TO
29N88W...INCLUDING STRAITS OF FLORIDA...WINDS 20 TO 33 KT. SEAS
8 TO 12 FT.
.48 HOUR FORECAST TROPICAL STORM ALBERTO TROPICAL CYCLONE NEAR
28.7N 86.6W. MAXIMUM SUSTAINED WINDS 55 KT GUSTS 65 KT. TROPICAL
STORM FORCE WINDS WITHIN 60 NM W SEMICIRCLE...90 NM NE QUADRANT
AND 120 NM SE QUADRANT. SEAS 12 FT OR GREATER WITHIN 90 NM NE
AND 45 NM SW SEMICIRCLES WITH SEAS TO 19 FT. ELSEWHERE N OF 26N
BETWEEN 84W AND 89W WINDS 20 TO 33 KT. SEAS 8 TO 12 FT.
.72 HOUR FORECAST TROPICAL STORM ALBERTO INLAND NEAR 31.6N
87.7W. MAXIMUM SUSTAINED WINDS 40 KT GUSTS 50 KT.
EXTENDED OUTLOOK...USE FOR GUIDANCE ONLY...ERRORS MAY BE LARGE.
.96 HOUR FORECAST TROPICAL DEPRESSION ALBERTO INLAND NEAR 35.6N
88.2W. MAXIMUM SUSTAINED WINDS 25 KT GUSTS 35 KT.
.120 HOUR FORECAST TROPICAL DEPRESSION ALBERTO INLAND NEAR 39.0N
85.0W. MAXIMUM SUSTAINED WINDS 20 KT GUSTS 30 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 12 HOUR FORECAST S OF 28N W OF 79W SE WINDS 20 TO 25 KT.
SEAS LESS THAN 8 FT.
.24 HOUR FORECAST W OF 79W SE WINDS 20 TO 25 KT. SEAS TO 8 FT
NEAR STRAITS OF FLORIDA.
.48 HOUR FORECAST N OF 27N W OF 79W S WINDS 20 TO 25 KT. SEAS TO
8 FT.

.ATLC 12 HOUR FORECAST S OF 21N BETWEEN 70W AND 73W E WINDS 20
TO 25 KT. SEAS LESS THAN 8 FT.
.18 HOUR FORECAST WINDS 20 KT OR LESS. SEAS LESS THAN 8 FT.
.24 HOUR FORECAST LITTLE CHANGE.
.36 HOUR FORECAST S OF 21N BETWEEN 70W AND 73W E WINDS 20 TO 25
KT. SEAS LESS THAN 8 FT.
.42 HOUR FORECAST CONDITIONS WINDS 20 KT OR LESS. SEAS LESS THAN
8 FT.

.CARIBBEAN FROM 11N TO 18N BETWEEN 72W AND 76W AND S OF 15N
BETWEEN 68W AND 72W E TO SE WINDS 20 TO 25 KT. SEAS 8 TO 9 FT.
.24 HOUR FORECAST FROM 11N TO 17N BETWEEN 72W AND 77W AND S OF
15N BETWEEN 68W AND 72W WINDS 20 KT OR LESS. SEAS TO 8 FT IN E
SWELL.
.48 HOUR FORECAST FROM 11N TO 15N BETWEEN 71W AND 76W WINDS 20
KT OR LESS. SEAS 8 FT IN E SWELL.

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

$$
.FORECASTER AL. NATIONAL HURRICANE CENTER.



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