947
FZNT01 KWBC 212152
HSFAT1

HIGH SEAS FORECAST FOR METAREA IV
NWS OCEAN PREDICTION CENTER WASHINGTON DC
2230 UTC SAT OCT 21 2017

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SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS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).

THE U.S. COAST GUARD IS CURRENTLY EXPERIENCING DEGRADATION IN
IMAGE QUALITY OF ALL HFFAX PRODUCTS. TROUBLESHOOTING OF THE
PROBLEM IS TAKING PLACE.

PAN PAN

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

SYNOPSIS VALID 1800 UTC OCT 21
24 HOUR FORECAST VALID 1800 UTC OCT 22
48 HOUR FORECAST VALID 1800 UTC OCT 23

.WARNINGS.

...HURRICANE FORCE WIND WARNING...
.LOW 51N37W 947 MB MOVING NE 15 KT. WITHIN 120 NM S SEMICIRCLE
WINDS 65 TO 85 KT. SEAS 25 TO 40 FT. ELSEWHERE WITHIN 180 NM OF
LOW EXCEPT 90 NM NW QUADRANT WINDS 50 TO 65 KT. SEAS 20 TO 32
FT. ALSO OVER FORECAST WATERS WITHIN 300 NM NE...240 NM SE...720
NM S...420 NM SW...AND 120 NM NW QUADRANTS WINDS 35 TO 50 KT.
SEAS 12 TO 24 FT. AND WITHIN 300 NM N...960 NM S...660 NM
SW...AND 300 NM W QUADRANTS WINDS 25 TO 35 KT. SEAS 9 TO 18 FT.
.24 HOUR FORECAST LOW JUST E OF AREA 56N34W 949 MB. WITHIN 420
NM NW...600 NM S...AND 900 NM SW QUADRANTS WINDS 40 TO 50 KT.
SEAS 15 TO 30 FT. ELSEWHERE E OF A LINE FROM 64N41W TO 59N46W TO
54N57W TO 51N54W TO 47N52W TO 45N58W TO 39N58W WINDS 25 TO 40
KT. SEAS 10 TO 20 FT.
.48 HOUR FORECAST LOW E OF AREA 56N29W 964 MB. N OF 60N E OF
GREENLAND WINDS 35 TO 45 KT. SEAS 15 TO 25 FT. ELSEWHERE N OF
47N E OF 42W WINDS 25 TO 40 KT. SEAS 15 TO 25 FT.

...STORM WARNING...
.LOW 54N51W 984 MB DRIFTING SE. OVER FORECAST WATERS WITHIN 420
NM NW AND 240 NM SW QUADRANTS WINDS 40 TO 50 KT. SEAS 15 TO 25
FT. ELSEWHERE WITHIN 720 NM NW AND SW...AND 900 NM S QUADRANTS
WINDS 25 TO 40 KT. SEAS 10 TO 20 FT.
.24 HOUR FORECAST LOW DISSIPATED. FROM 60N TO 63N BETWEEN 51W
AND 55W AREA OF N TO NW WINDS 40 TO 50 KT. SEAS 15 TO 25 FT.
ELSEWHERE E OF 62W AND N OF A LINE FROM 59N46W TO 54N57W WINDS
25 TO 40 KT. SEAS 10 TO 20 FT.
.48 HOUR FORECAST E OF 53W AND N OF A LINE FROM 57N46W TO 55N54W
WINDS 20 TO 30 KT. SEAS 8 TO 16 FT.

...GALE WARNING...
.48 HOUR FORECAST LOW JUST NW OF AREA 68N64W 998 MB. OVER
FORECAST WATERS WITHIN 120 NM SE QUADRANT AREA OF S TO SE WINDS
25 TO 35 KT. SEAS TO 10 FT. ELSEWHERE W OF A LINE FROM 59N60W TO
67N59W WINDS 20 TO 30 KT. SEAS TO 9 FT.

...GALE WARNING...
.48 HOUR FORECAST...EXCEPT AS DESCRIBED WITH LOW 56N29W
ABOVE...WITHIN 240 NM EITHER SIDE OF A LINE FROM 41N42W TO
47N46W AREA OF NW WINDS 25 TO 35 KT. SEAS 12 TO 22 FT.

.SYNOPSIS AND FORECAST.

.48 HOUR FORECAST OVER FORECAST WATERS S OF A LINE FROM 35N69W
TO 31N52W WINDS TO 25 KT. SEAS TO 8 FT.

.48 HOUR FORECAST OVER FORECAST WATERS FROM 31N TO 34N W OF 76W
AREA OF S TO SE WINDS 20 TO 30 KT. SEAS TO 8 FT.

.48 HOUR FORECAST...EXCEPT AS DESCRIBED IN WARNINGS SECTION
ABOVE...FROM 35N TO 40N E OF 54W WINDS TO 25 KT. SEAS 8 TO 16
FT.
.LIGHT TO MODERATE FREEZING SPRAY OVER FORECAST WATERS W OF A
LINE FROM 60N63W TO 67N60W.
.24 HOUR FORECAST LIGHT TO MODERATE FREEZING SPRAY W OF A LINE
FROM 62N64W TO 67N58W.
.48 HOUR FORECAST CONDITIONS DIMINISHED.

.HIGH 39N74W 1028 MB MOVING NE 20 KT.
.24 HOUR FORECAST HIGH 44N64W 1033 MB.
.48 HOUR FORECAST HIGH 41N61W 1031 MB.

.FORECASTER FIGURSKEY. 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 OCT 21.
24 HOUR FORECAST VALID 1800 UTC SUN OCT 22.
48 HOUR FORECAST VALID 1800 UTC MON OCT 23.

.WARNINGS.

...GALE WARNING...
.GULF OF MEXICO 30 HOUR FORECAST COLD FRONT FROM 30N93W TO
26N97W. W OF FRONT N WINDS 20 TO 25 KT. SEAS LESS THAN 8 FT.
.42 HOUR FORECAST COLD FRONT FROM 30N87W TO 24N90W TO 18N94W.
FROM 21N TO 24N W OF 94W N TO NW WINDS 20 TO 25 KT. SEAS LESS
THAN 8 FT.
.48 HOUR FORECAST COLD FRONT FROM 30N86W TO 25N88W TO 22N91W.
STATIONARY FRONT FROM 22N91W TO 18N93W. S OF 20N W OF 95W N TO
NW WINDS 30 TO 35 KT. SEAS 8 TO 12 FT...HIGHEST NEAR 19N96W.
ELSEWHERE FROM 21N TO 24N W OF 94W N TO NW WINDS 20 TO 25 KT.
SEAS LESS THAN 8 FT.

.SYNOPSIS AND FORECAST.

.ATLC S OF 21N E OF 48W WINDS 20 KT OR LESS. SEAS 8 TO 10 FT IN
MIXED SWELL.
.12 HOUR FORECAST FROM 09N TO 17N BETWEEN 38W AND 48W WINDS 20
KT OR LESS. SEAS TO 9 FT IN MIXED SWELL.
.24 HOUR FORECAST FROM 09N TO 12N BETWEEN 45W AND 48W E WINDS 20
TO 25 KT. SEAS 8 TO 10 FT. ELSEWHERE FROM 09N TO 15N BETWEEN 43W
AND 50W WINDS 20 KT OR LESS. SEAS TO 9 FT IN MIXED SWELL.
.36 HOUR FORECAST FROM 09N TO 14N BETWEEN 45W AND 52W WINDS 20
KT OR LESS. SEAS TO 9 FT IN MIXED SWELL.
.48 HOUR FORECAST LITTLE CHANGE.

.ATLC FROM 19N TO 21N BETWEEN 71W AND 73W..INCLUDING ENTRANCE TO
WINDWARD PASSAGE...E WINDS 20 TO 25 KT. SEAS TO 8 FT.
.18 HOUR FORECAST WINDS 20 KT OR LESS. SEAS LESS THAN 8 FT.

.CARIBBEAN S OF 18N BETWEEN 65W AND 80W E WINDS 20 TO 25 KT.
SEAS 8 TO 12 FT...HIGHEST NEAR 14N75W.
.24 HOUR FORECAST FROM 12N TO 18N BETWEEN 71W AND 79W E WINDS 20
TO 25 KT. SEAS 8 TO 11 FT. ELSEWHERE FROM 10N TO 18N BETWEEN 66W
AND 82W WINDS 20 KT OR LESS. SEAS 8 TO 10 FT IN PRIMARILY E
SWELL.
.48 HOUR FORECAST FROM 11N TO 18N BETWEEN 70W AND 82W WINDS 20
KT OR LESS. SEAS 8 TO 11 FT IN PRIMARILY E SWELL.

.CARIBBEAN 30 HOUR FORECAST S OF 17.5N W OF 86W...INCLUDING THE
GULF OF HONDURAS...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 ERA. NATIONAL HURRICANE CENTER.