Coastal Waters Forecast for Waters from Tarpon Springs to Suwannee River FL out 20 to 60 NM (GMZ870) (Text-Only)
NWS Forecast for: Waters from Tarpon Springs to Suwannee River FL out 20 to 60 NM (GMZ870)
Issued by: National Weather Service Tampa Bay, FL
Last Update: 310 AM EDT Wed Sep 30 2026
Print


Today: Southeast winds 5 to 10 knots. Seas 1 foot or less. Wave detail: southeast 1 foot at 3 seconds. Isolated showers and thunderstorms early this morning. Isolated showers and thunderstorms this afternoon.

Tonight: East winds 5 to 10 knots, becoming southeast 10 to 15 knots after midnight. Seas 1 foot or less, then around 2 feet after midnight. Wave detail: southeast 1 foot at 3 seconds, becoming southeast 1 foot at 4 seconds. Isolated showers and thunderstorms.

Thursday: East winds 10 to 15 knots with gusts up to 20 knots. Seas 2 to 3 feet. Wave detail: southeast 2 feet at 4 seconds. Isolated showers and thunderstorms in the afternoon.

Thursday Night: East winds 10 to 15 knots with gusts up to 20 knots. Seas 2 to 4 feet, occasionally to 5 feet. Wave detail: south 3 feet at 6 seconds and east 2 feet at 3 seconds. Scattered showers with isolated thunderstorms.

Friday: Southeast winds 15 to 20 knots, diminishing to 10 to 15 knots in the afternoon. Seas 2 to 4 feet, occasionally to 5 feet. Wave detail: southeast 3 feet at 5 seconds. Isolated thunderstorms. Scattered showers in the morning, then numerous showers in the afternoon.

Friday Night: East winds 10 to 15 knots. Seas 2 to 3 feet. Wave detail: south 3 feet at 6 seconds and east 2 feet at 3 seconds. Numerous showers with isolated thunderstorms.

Saturday: Southeast winds 10 to 15 knots. Seas 2 to 3 feet. Scattered showers with isolated thunderstorms.

Saturday Night: Southeast winds 5 to 10 knots, increasing to 10 to 15 knots after midnight. Seas 2 to 3 feet. Scattered showers with isolated thunderstorms.

Sunday: Southeast winds 10 to 15 knots. Seas 2 to 3 feet. Scattered showers with isolated thunderstorms.

winds and seas higher in and near thunderstorms.







Zone Forecast: Waters from Tarpon Springs to Suwannee River FL out 20 to 60 NM (GMZ870)

Visit your local NWS office at: https://www.weather.gov/tbw