Offshore Forecast
Issued by NWS

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867
FZNT25 KNHC 180926
OFFN04

NAVTEX Marine Forecast
NWS National Hurricane Center Miami, FL
526 AM EDT Mon Aug 18 2025

...Please refer to Coastal Waters Forecasts (CWF) available
through NOAA Weather Radio and other means for detailed
Coastal Waters Forecasts...

Southeast Gulf of America

.SYNOPSIS...Weak high pressure will drift about the NW Gulf
through Wed night and allow for generally light to gentle winds
and slight seas. Atlantic high pressure will build westward
along about 23N Thu, as Hurricane Erin moves northward of
Bermuda.

.TODAY...NE to E winds less than 5 kt, shifting to W to NW in the
afternoon. Seas 2 ft or less. Scattered showers and isolated
tstms.
.TONIGHT...NE winds 5 to 10 kt. Seas 2 ft or less. Scattered
showers and isolated tstms.
.TUE...NE winds less than 5 kt, shifting to NW to N in the
afternoon. Seas 2 ft or less. Scattered showers and isolated
tstms.
.TUE NIGHT...N winds 5 to 10 kt. Seas 2 ft or less. Scattered
showers and isolated tstms.
.WED...NW winds 5 to 10 kt. Seas 2 ft or less.
.WED NIGHT...W winds 5 to 10 kt. Seas 2 ft or less.
.THU...SW to W winds 5 to 10 kt. Seas 2 ft or less.
.THU NIGHT...SW winds 5 to 10 kt. Seas 2 ft or less.
.FRI...SW to W winds 5 to 10 kt. Seas 2 ft or less.
.FRI NIGHT...SW winds 5 to 10 kt. Seas 2 ft or less.

Within 200 nm east of the coast of Florida

.SYNOPSIS...Major Hurricane Erin is near 22.8N 70.2W at 5 AM
EDT, and is moving northwest at 11 kt. Maximum sustained winds
are 115 kt with gusts to 140 kt, and the minimum central
pressure is 945  mb. Erin will move to 23.6N 71.2W this
afternoon, 25.0N 72.2W Tue  morning, 26.6N 72.9W Tue afternoon,
28.6N 73.4W Wed morning, 30.7N 73.4W Wed afternoon, and 32.9N
72.2W Thu morning. Erin will change little in intensity as it
moves near 37.2N 66.1W early Fri. Swells generated by Erin will
affect the Bahamas, Bermuda, the east  coast of the United
States, and Atlantic Canada during the next  several days. These
rough ocean conditions will likely cause life- threatening surf
and rip currents. The pressure gradient between  a ridge over
the eastern U.S. and Erin will promote moderate to  fresh N to
NE winds offshore northern Florida to near 76W from  early Tue
through Wed. In the wake of Erin, high pressure will  build
west- southwestward along 24N through Thu night.

.TODAY...N winds 10 to 15 kt S of 27N, and N to NE 10 to 15 kt N
of 27N. Seas 4 to 6 ft in E swell. Scattered showers and isolated
tstms.
.TONIGHT...N winds 10 to 15 kt S of 27N, and NE 15 to 20 kt N of
27N. Seas 6 to 8 ft in E swell.
.TUE...NW to N winds 10 to 15 kt S of 27N, and N to NE 20 to
25 kt N of 27N. Seas 7 to 10 ft in E swell. Scattered showers and
isolated tstms.
.TUE NIGHT...NW winds 10 to 15 kt S of 27N, and N 20 to 25 kt N
of 27N. Seas 8 to 11 ft in NE to E swell. Scattered showers and
isolated tstms.
.WED...W to NW winds 15 to 20 kt. Seas 8 to 11 ft in NE swell.
.WED NIGHT...W to NW winds 15 to 20 kt. Seas 7 to 10 ft in N to
NE swell.
.THU...W winds 10 to 15 kt. Seas 6 to 9 ft in N to NE swell.
.THU NIGHT...SW to W winds less than 5 kt. Seas 5 to 7 ft in N to
NE swell.
.FRI...NW to N winds less than 5 kt. Seas 4 to 6 ft in N to NE
swell.
.FRI NIGHT...NE to E winds less than 5 kt. Seas 3 to 5 ft in N to
NE swell.