Special Marine Warning Issued for Florida Coastal Waters from Volusia-Brevard Line to Jupiter Inlet

Weather Alerts high NOAA · · Florida Atlantic Coast

A Special Marine Warning is in effect until 6:15 PM EST for coastal waters near Sebastian Inlet as a strong thunderstorm with 34-knot wind gusts moves through the area.

Alert Details

The National Weather Service in Melbourne has issued a Special Marine Warning for the Atlantic coastal waters. The alert was issued at 5:14 PM EST on February 27, 2026, and remains in effect until 6:15 PM EST.

Affected Areas

The warning covers the following marine zones from 0 to 20 nautical miles offshore:

  • Volusia-Brevard County Line to Sebastian Inlet
  • Sebastian Inlet to Jupiter Inlet

Specific locations impacted include Floridana Beach, Melbourne Shores, Grant-Valkaria, Barefoot Bay, and Micco.

What You Should Do

Mariners are urged to move to safe harbor immediately as gusty winds and high waves are expected. Ensure all persons on board are wearing life jackets. If caught on open water, stay below deck and, if possible, avoid contact with ungrounded metal objects. Frequent cloud-to-water lightning is occurring with this storm; remember that lightning can strike more than 10 miles away from a thunderstorm.

Expected Conditions

At 5:13 PM EST, radar indicated a strong thunderstorm over Grant-Valkaria and Barefoot Bay, moving east at 25 knots. Expected hazards include:

  • Wind: Gusts of 34 knots or greater.
  • Waves: Suddenly higher waves.
  • Precipitation: Heavy downpours.
  • Lightning: Frequent cloud-to-water strikes.

Timeline

The warning is effective immediately as of 5:14 PM EST and is scheduled to expire at 6:15 PM EST on February 27, 2026.

Source: NOAA Official Notice