Marine Weather Net

Englewood to Tarpon Springs FL out 20 NM Marine Forecast


TODAY

NE
WINDS
20
KNOTS

TONIGHT

NE
WINDS
20 - 25
KNOTS

FRIDAY

NE
WINDS
10 - 15
KNOTS

FRIDAY NIGHT

E
WINDS
10 - 15
KNOTS

The Marine Weather Forecast In Detail:
GMZ853 Forecast Issued: 340 AM EDT Thu Sep 17 2026

SMALL CRAFT ADVISORY IN EFFECT THROUGH LATE TONIGHT
Today...Northeast Winds Around 20 Knots With Gusts Up To 25 Knots. Seas 2 To 4 Feet, Occasionally To 5 Feet. Wave Detail: North 3 Feet At 5 Seconds. Bay And Inland Waters Choppy. Isolated Showers And Thunderstorms Late.
Tonight...Northeast Winds 20 To 25 Knots, Diminishing To 15 To 20 Knots After Midnight. Seas 2 To 4 Feet, Occasionally To 5 Feet. Wave Detail: North 3 Feet At 5 Seconds. Bay And Inland Waters Rough.
Friday...Northeast Winds 10 To 15 Knots. Seas 2 To 3 Feet. Wave Detail: North 2 Feet At 5 Seconds. Bay And Inland Waters A Moderate Chop. Isolated Showers And Thunderstorms In The Afternoon.
Friday Night...East Winds 10 To 15 Knots. Seas Around 2 Feet. Wave Detail: Northeast 2 Feet At 4 Seconds. Bay And Inland Waters A Moderate Chop. Scattered Showers. Scattered Thunderstorms, Mainly In The Evening.
Saturday...Northeast Winds 5 To 10 Knots. Seas Around 2 Feet In The Morning, Then 1 Foot Or Less. Wave Detail: Northeast 1 Foot At 4 Seconds, Becoming East 1 Foot At 3 Seconds. Bay And Inland Waters Light Chop. Isolated Showers And Thunderstorms In The Morning, Then Scattered Showers And Thunderstorms In The Afternoon.
Saturday Night...Northeast Winds 5 To 10 Knots, Becoming East After Midnight. Seas 1 Foot Or Less. Wave Detail: Northeast 1 Foot At 3 Seconds. Bay And Inland Waters Light Chop. Numerous Showers And Scattered Thunderstorms.
Sunday...Southeast Winds 5 To 10 Knots. Seas 1 Foot Or Less. Bay And Inland Waters Light Chop. Numerous Showers. Scattered Thunderstorms In The Morning, Then Numerous Thunderstorms In The Afternoon.
Sunday Night...East Winds 5 To 10 Knots. Seas 1 Foot Or Less. Bay And Inland Waters Light Chop. Numerous Showers. Numerous Thunderstorms, Mainly In The Evening.
Monday...Southeast Winds 5 To 10 Knots. Seas 1 Foot Or Less. Bay And Inland Waters Light Chop. Numerous Showers. Scattered Thunderstorms In The Morning, Then Numerous Thunderstorms In The Afternoon. Winds And Seas Higher In And Near Thunderstorms.
SHARE THIS PAGE:           
Area Forecast Discussion
National Weather Service Tampa Bay Ruskin FL
325am EDT Thu September 17 2026

Issued at 325am EDT Thu September 17 2026

Currently at the surface, an elongated ridge of high pressure is stretched out along and east of the Mid-Atlantic Coast while broad low pressure holds over the Caribbean Sea. This pattern is favoring breezy east flow across the Florida Peninsula, which is pulling a pocket of dry air into northern Florida from the western Atlantic. As a result, rain coverage this afternoon is expected to be quite limited for mid September, with much of the area forecast to remain rain free. However, moisture will be slightly more favorable over southwest Florida, allowing for a few showers or storms to push west into the area during the afternoon and early evening hours. Moisture will begin to work back into the area Friday and Saturday from south to north, with scattered to numerous storms forecast from around Interstate 4 south on Friday, then across the entire forecast area on Saturday. Otherwise, dew points will be slightly lower for the next few days, mainly over the Nature Coast counties and the northern half of the forecast area, and conditions should feel a bit less humid than the first half of the month did.

During the rest of the weekend and into the first half of next week, atmospheric moisture will continue to build as an upper level low crosses the Florida Peninsula and lingers over the eastern Gulf, with PWAT (Precipitable Water) values building to around 2.0-2.25 inches. As a result, storm coverage and rain totals will continue to rise across the area, with numerous to widespread thunderstorms developing each day. Under light easterly flow, storms will generally develop over the eastern half of the Peninsula during the morning and early afternoon, shifting west into the area during the afternoon and early evening hours.

Marine
Issued at 325am EDT Thu September 17 2026

With high pressure holding north of the waters, breezy east and northeast winds will continue to increase to advisory levels at times today and into tonight. Winds will subside overnight and into Friday as the pressure gradient relaxes, with winds generally forecast to remain around 15 knots or less Friday through early next week. However, thunderstorm coverage will increase through the weekend, bringing locally higher winds and rough seas in the vicinity of daily thunderstorms.

Fire Weather
Issued at 325am EDT Thu September 17 2026

Drier air holding over the area today will limit rain chances for much of the area, although scattered showers and storms will still be possible over parts of southwest Florida, mainly in the afternoon. Moisture will begin to return on Friday from the south, with rain chances returning to much of the area with the exception of the Nature Coast counties. No humidity concerns.

Sea Breeze Thunderstorm Regime For Thursday: 3 Sea Breeze Thunderstorm Regime For Friday: 3

For additional information on sea breeze regimes, go to: https://www.weather.gov/tbw/ThunderstormClimatology

NOAA Tampa FL Office: Watches - Warnings - Advisories
FL...None. Gulf waters...Small Craft Advisory until 2am EDT Friday for Charlotte Harbor and Pine Island Sound-Coastal waters from Bonita Beach to Englewood FL out 20 NM-Coastal waters from Englewood to Tarpon Springs FL out 20 NM-Coastal waters from Tarpon Springs to Suwannee River FL out 20 NM-Tampa Bay waters- Waters from Bonita Beach to Englewood FL out 20 to 60 NM- Waters from Englewood to Tarpon Springs FL out 20 to 60 NM- Waters from Tarpon Springs to Suwannee River FL out 20 to 60 NM.