High Seas Forecast
Issued by NWS

Home | Current Version | Previous Version | Text Only | Print | Product List | Glossary On
Versions: 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50
000
FZNT01 KWBC 211001
HSFAT1

HIGH SEAS FORECAST FOR METAREA IV
NWS OCEAN PREDICTION CENTER WASHINGTON DC
1030 UTC SAT APR 21 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SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS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 0600 UTC APR 21.
24 HOUR FORECAST VALID 0600 UTC APR 22.
48 HOUR FORECAST VALID 0600 UTC APR 23.

.WARNINGS.

...GALE WARNING...
.LOW 50N53W 994 MB MOVING NE 10 KT. WITHIN 360 NM E OF A FRONT
FROM 42N51W TO 35N58W WINDS 25 TO 35 KT. SEAS 8 TO 15 FT.
.24 HOUR FORECAST LOW 54N49W 990 MB. WITHIN 420 NM SE AND 360 NM
NW QUADRANTS...AND 180 NM SE OF FRONT FROM 46N35W TO 44N40W TO
39N47W WINDS 25 TO 35 KT. SEAS 8 TO 15 FT.
.48 HOUR FORECAST LOW 55N42W 990 MB. WITHIN 420 NM S AND
SW...AND 300 NM NW AND 360 NM N QUADRANTS WINDS 25 TO 40 KT.
SEAS 10 TO 22 FT. ELSEWHERE WITHIN 180 NM SE OF FRONT FROM
43N35W TO 40N40W WINDS 25 TO 35 KT. SEAS 8 TO 11 FT.

.SYNOPSIS AND FORECAST.

.WITHIN 120 NM E OF A LINE FROM 59N45W TO 62N43W TO 63N42W WINDS
TO 25 KT. SEAS 8 TO 10 FT.
.12 HOUR FORECAST CONDITIONS DIMINISHED.

.48 HOUR FORECAST FROM 31N TO 33N W OF 74W AREA OF E TO SE WINDS
TO 25 KT. SEAS TO 10 FT.

.LIGHT FREEZING SPRAY N OF 62N W OF 54W.
.24 HOUR FORECAST LIGHT FREEZING SPRAY N OF 62N W OF 54W.
.48 HOUR FORECAST CONDITIONS IMPROVED.

.DENSE FOG. VSBY OCCASIONALLY LESS THAN 1 NM FROM 42N TO 49N
BETWEEN 41W AND 50W.
.24 HOUR FORECAST CONDITIONS IMPROVED.

.HIGH 34N37W 1032 MB DRIFTING E.
.24 HOUR FORECAST HIGH 35N36W 1031 MB.
.48 HOUR FORECAST HIGH E OF AREA.

.48 HOUR FORECAST HIGH 39N73W 1030 MB.

.FORECASTER ROWLAND. 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 SAT APR 21.
24 HOUR FORECAST VALID 0600 UTC SUN APR 22.
48 HOUR FORECAST VALID 0600 UTC MON APR 23.

.WARNINGS.

.NONE.

.SYNOPSIS AND FORECAST.

.ATLC COLD FRONT FROM 31N69W TO 29N76W AND STATIONARY TO
28.5N81W. N OF 29N W OF 75W NE WINDS 20 TO 25 KT. SEAS 8 TO 10
FT. S OF 21N BETWEEN 70W AND 74W E WINDS 20 TO 25 KT. SEAS LESS
THAN 8 FT.
.24 HOUR FORECAST COLD FRONT FROM 31N59W TO 27N65W THEN
STATIONARY TO 26N80W. FROM 27N TO 28N BETWEEN 71W AND 77W AND N
OF 27N W OF 77W NE TO E WINDS 20 TO 25 KT. SEAS 8 TO 10 FT. S OF
21N BETWEEN 70W AND 74W E WINDS 20 TO 25 KT. SEAS LESS THAN 8
FT.
.48 HOUR STATIONARY FRONT FROM 31N54W TO 27N63W...THEN WEAKENING
STATIONARY TO 26N80W. N OF 27N W OF 77W E TO SE WINDS 20 TO 25
KT. SEAS 8 TO 10 FT. S OF 21N BETWEEN 70W AND 73W E WINDS 20 TO
25 KT. SEAS LESS THAN 8 FT.

.ATLC SE OF LINE FROM 31N38W TO 24N49W TO 19N55W TO 16N60W TO
07N59W WINDS 20 KT OR LESS. SEAS 8 TO 10 FT IN N TO NE SWELL.
.24 HOUR FORECAST WITHIN AREA BOUNDED BY 24N45W TO 28N35W TO
07N35W TO 07N55W TO 19N44W TO 24N45W WINDS 20 KT OR LESS. SEAS
8 FT IN DECAYING N TO NE SWELL.
.48 HOUR FORECAST FROM 13N TO 20N E OF 44W WINDS 20 KT OR LESS.
SEAS TO 8 FT IN DECAYING N TO NE SWELL.

.CARIBBEAN FROM 11N TO 15N BETWEEN 70W AND 78W NE TO E WINDS 20
TO 25 KT...EXCEPT 25 TO 30 KT S OF 12.5N BETWEEN 74W AND 76W.
SEAS 8 TO 10 FT...EXCEPT 9 TO 11 FT S OF 12.5N BETWEEN 74W AND
76W. ELSEWHERE FROM 10N TO 17N BETWEEN 75W AND 82W WINDS 20 KT
OR LESS. SEAS 8 TO 10 FT IN E SWELL.
.24 HOUR FORECAST FROM 10.5N TO 14N BETWEEN 70W AND 77W NE TO E
WINDS 20 TO 25 KT...EXCEPT 25 TO 30 KT S OF 12N BETWEEN 74W AND
75W. SEAS 8 TO 10 FT...EXCEPT 9 TO 11 FT S OF 12N BETWEEN 74W
AND 75W. ELSEWHERE FROM 10N TO 16N BETWEEN 71W AND 81W WINDS 20
KT OR LESS. SEAS TO 9 FT IN NE TO E SWELL. WITHIN 30 NM OF LINE
FROM 17N71W TO 17N73W NE TO E WINDS 20 TO 25 KT. SEAS LESS THAN
8 FT.
.48 HOUR FORECAST FROM 11N TO 14N BETWEEN 70W AND 77W...
INCLUDING GULF OF VENEZUELA...NE TO E WINDS 20 TO 25 KT. SEAS 8
TO 10 FT. WITHIN 30 NM OF LINE FROM 17N71W TO 17N73W NE TO E
WINDS 20 TO 25 KT. SEAS LESS THAN 8 FT.

.GULF OF MEXICO STATIONARY FRONT FROM 28N83W TO 26N90W AND WARM
FRONT TO 27N97W. FROM 27N TO 30N E OF 86W NE TO E WINDS 20 TO 25
KT. SEAS LESS THAN 8 FT. FROM 19N TO 21N E OF 92W NE WINDS 20 TO
25 KT. SEAS LESS THAN 8 FT.
.12 HOUR FORECAST WARM FRONT FROM 27N81W TO 30N93W. WINDS 20 KT
OR LESS. SEAS LESS THAN 8 FT.
.18 HOUR FORECAST WARM FRONT FROM 27.5N81W TO 30N91W. LITTLE
CHANGE IN WINDS AND SEAS.
.24 HOUR FORECAST WARM FRONT FROM 27.5N82W TO 30N90W. N OF FRONT
E TO SE WINDS 20 TO 25 KT. SEAS TO 8 FT.
.36 HOUR FORECAST WARM FRONT FROM 28N83W TO 30N87W. COLD FRONT
FROM 30N92W TO 25N95W. WINDS 20 KT OR LESS. SEAS LESS THAN 8 FT.
SCATTERED TSTMS N OF 27N WITHIN 180 NM E OF COLD FRONT.
.48 HOUR FORECAST WARM FRONT FROM 28.5N83W TO 30N85W. COLD FRONT
FROM 30N88W TO 25N92W AND STATIONARY FRONT TO 18N94W. WINDS 20
KT OR LESS. SEAS LESS THAN 8 FT. SCATTERED TSTMS N OF 27N WITHIN
180 NM E OF COLD FRONT.

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

$$
.FORECASTER AGUIRRE. NATIONAL HURRICANE CENTER.


USA.gov is the U.S. government's official web portal to all federal, state and local government web resources and services.