000
FZNT25 KNHC 310919
OFFN04

NAVTEX Marine Forecast
NWS National Hurricane Center Miami, FL
519 AM EDT Fri Jul 31 2020

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

Southeast Gulf of Mexico

.SYNOPSIS...Hurricane Isaias is centered near 20.9N 73.3W 990 mb
moving NW at 14 kt. Maximum sustained winds 70 kt gusts 85 kt.
Weak high pressure over the NE Gulf will drift W through the
weekend as Isaias moves NW to the Central Bahamas this afternoon
and evening then veers more NNW over the NW Bahamas and near SE
Florida late tonight through Sat. Isaias is the expected to move
N then NE across the W Atlantic and remain east of the Gulf of
Mexico through the weekend.  

.TODAY...NE to E winds 10 to 15 kt. Seas 3 to 4 ft. Scattered
showers and isolated tstms. 
.TONIGHT...NE winds 10 to 15 kt. Seas 3 ft. 
.SAT...N to NE winds 10 to 15 kt. Seas 3 ft. Scattered showers
and isolated tstms. 
.SAT NIGHT...N winds 10 to 15 kt. Seas 3 ft. Chance of showers
and slight chance of tstms. 
.SUN...N winds 5 to 10 kt. Seas 3 ft in the morning, subsiding to
2 ft or less. 
.SUN NIGHT...N winds 5 to 10 kt. Seas 2 ft or less. 
.MON...N winds 5 to 10 kt. Seas 2 ft or less. 
.MON NIGHT...NE winds 5 to 10 kt. Seas 2 ft or less.
.TUE...NE winds 5 to 10 kt. Seas 2 ft or less.  

Within 200 nm east of the coast of Florida

.SYNOPSIS...Hurricane Isaias near 20.9N 73.3W 990 mb at 0900 UTC
 moving NW at 15 kt. Maximum sustained winds 70 kt gusts 85 kt. 
Isaias will continue NW and reach the central Bahamas near 22.3N
 75.0W this afternoon, then continue NNW through the NW Bahamas 
and near SE Florida tonight and Sat, reaching 25.7N 78.5W Sat 
afternoon, then turn more N and reach 28.8N 79.6W Sun afternoon
before exiting to the NNE Mon and Tue. Very large seas in SE
swell are  expected over a large portion of the SW North
Atlantic waters west of 70W and through the Bahamas waters today
and tonight. 

...HURRICANE WARNING...

.TODAY...TROPICAL STORM CONDITIONS EXPECTED WITH HURRICANE
CONDITIONS POSSIBLE. E to SE winds 25 to 30 kt. Seas 3 to 9 ft. 
.TONIGHT...HURRICANE CONDITIONS EXPECTED. S of 27N, NE winds
40 to 45 kt, becoming N to NE 65 to 75 kt after midnight. N of
27N, E to SE winds 40 to 45 kt, increasing to 55 to 65 kt after
midnight. Seas 6 to 18 ft. Numerous showers and tstms. 
.SAT...HURRICANE CONDITIONS EXPECTED. S of 27N,NW to N winds
65 to 75 kt, shifting to SW to W in the afternoon. N of 27N,E to
SE winds 45 to 60 kt. Seas 6 to 18 ft. Scattered showers and
tstms. 
.SAT NIGHT...HURRICANE CONDITIONS EXPECTED. S winds 60 to 70 kt
S of 27N, and E to SE 50 to 70 kt N of 27N. Seas 3 to 15 ft in NE
swell. Scattered showers and isolated tstms. 
.SUN...HURRICANE CONDITIONS POSSIBLE. S of 27N,S winds 15 to
20 kt, diminishing to 5 to 10 kt in the afternoon. N of 27N,SE
to S winds 60 to 70 kt. Seas 3 to 18 ft in NE swell. 
.SUN NIGHT...HURRICANE CONDITIONS POSSIBLE. 
.MON...TROPICAL STORM CONDITIONS POSSIBLE. 
.MON NIGHT...SE winds 10 to 15 kt. Seas 3 to 7 ft.
.TUE...E to SE winds 10 to 15 kt S of 27N, and SE to S 10 to
15 kt N of 27N. Seas 3 to 5 ft.