Spot Forecast
Issued by NWS
Issued by NWS
684
FNUS72 KNHC 181501
FWSNHC
SPOT FORECAST FOR Dry Tortugas Discharge...USCG
NWS NATIONAL HURRICANE CENTER MIAMI FL
1300 EDT Tue Aug 18 2026
Forecast is based on forecast start time of 0900 EDT on August 18.
IF CONDITIONS BECOME UNREPRESENTATIVE...CONTACT THE NWS
NATIONAL HURRICANE CENTER/TROPICAL ANALYSIS AND FORECAST
BRANCH AT (305)229-4425.
.DISCUSSION...High pressure over the Gulf is maintaining light breezes
and nearly flat seas through the next couple of days. No significant
shower or thunderstorm activity is expected through the middle of the
week.
Latitude = 24.445N
Longitude = -83.461W
.REST OF TODAY...
Sky/weather.........Sunny (0-10 percent).
Max temperature.....Around 85.
Surface winds (kts).East winds up to 6 knots in the late morning
and early afternoon becoming light, then
becoming northeast around 5 knots late in the
afternoon.
Swell height........East swell 1 feet.
Wave height.........1 foot.
Wave height.........1 foot.
Wave period.........4 SECONDS.
Wave period.........4 SECONDS.
Wind wave...........2 feet.
Sea surface temp....86 Degrees Fahrenheit.
TIME (EDT) 9 AM NOON 3 PM
Sky (%).........0 0 5
Weather cov.....
Weather type....NONE NONE NONE
Tstm cov........
Temp............84 84 85
SFC wind (kts)..E 6G9 E 4G7 NE 3G5
Swell hgt (ft)..E 1 E 1 E 1
Wave period (s).4 4 4
Wind wave (ft)..2 2 1
Wave height (ft)1 1 1
SST (F).........86 86 86
.TONIGHT...
Sky/weather.........Mostly clear (5-15 percent).
Min temperature.....Around 83.
Surface winds (kts).Northeast winds 5 to 6 knots in the evening and
overnight becoming light.
Swell height........East swell 1 feet.
Wave height.........1 foot.
Wave height.........1 foot.
Wave period.........4 SECONDS.
Wave period.........4 SECONDS.
Wind wave...........2 feet.
Sea surface temp....86 Degrees Fahrenheit.
TIME (EDT) 6PM 7PM 8PM 9PM 10P 11P MID 1AM 2AM 3AM 4AM 5AM
Sky (%).........5 5 10 10 10 10 10 10 11 11 11 11
Weather cov.....
Weather type....
Tstm cov........
Temp............85 85 85 85 85 85 85 85 84 84 84 84
SFC wnd dir.....NE NE NE NE NE NE NE NE SE SE SE N
SFC wnd spd kts.5 5 6 6 6 5 5 5 3 3 3 3
SFC wnd gst.....8 8 9 9 9 8 8 8 4 4 4 4
Swell direction.E E E E E E E E E E E E
Swell hgt (ft)..1 1 1 1 1 1 1 1 0 0 0 0
Wave period (s).4 4 4 4 4 4 4 4 4 4 4 4
Wind wave (ft)..1 1 2 2 2 2 2 2 1 1 1 1
Wave height (ft)1 1 1 1 1 1 1 1 1 1 1 1
SST (F).........86 86 86 86 86 86 86 86 86 86 86 86
.WEDNESDAY...
Sky/weather.........Sunny (5-15 percent) then becoming mostly
cloudy (75-85 percent).
Max temperature.....Around 85.
Surface winds (kts).Light winds becoming north around 4 knots early
in the morning, then becoming light late in the
morning becoming north around 4 knots late in
the afternoon.
Swell height........North swell 0 feet.
Wave height.........1 foot.
Wave height.........1 foot.
Wave period.........4 SECONDS.
Wave period.........4 SECONDS.
Wind wave...........1 foot.
Sea surface temp....86 Degrees Fahrenheit.
TIME (EDT) 6AM 7AM 8AM 9AM 10A 11A 12P 1PM 2PM 3PM 4PM 5PM
Sky (%).........11 11 76 76 76 76 76 76 83 83 83 83
Weather cov.....
Weather type....
Tstm cov........
Temp............84 84 84 84 84 84 84 84 85 85 85 85
SFC wnd dir.....N N N N N NE NE NE N N N N
SFC wnd spd kts.3 3 4 4 4 3 3 3 3 3 3 4
SFC wnd gst.....4 4 7 7 7 5 5 5 4 4 4 7
Swell direction.E E E E E E E E N N N N
Swell hgt (ft)..0 0 0 0 0 0 0 0 0 0 0 0
Wave period (s).4 4 4 4 4 4 4 4 4 4 4 4
Wind wave (ft)..1 1 1 1 1 1 1 1 1 1 1 1
Wave height (ft)1 1 1 1 1 1 1 1 1 1 1 1
SST (F).........86 86 86 86 86 86 86 86 86 86 86 86
$$
Forecaster...CHRISTENSEN
Requested by...Sector Key West
Type of request...MARINE
.TAG 2619010.5/NHC
.DELDT 08/18/26
.FormatterVersion 2.0.0
.EMAIL james.a.bonner@uscg.mil,skw@uscg.mil,Tduke@resolvemarine.com