The National Weather Service issued a Special Marine Warning for offshore waters along Florida’s east coast on March 12, 2026. The alert covers areas from the Volusia-Brevard County Line to Sebastian Inlet, including both nearshore and offshore zones, as well as waters from Flagler Beach to the Volusia-Brevard County Line. The warning remains in effect until 5:30 p.m. EDT.
The alert applies to three marine zones: 0–20 nautical miles, 20–60 nautical miles between the Volusia-Brevard County Line and Sebastian Inlet, and 20–60 nautical miles between Flagler Beach and the Volusia-Brevard County Line. Strong thunderstorms moving across the Atlantic are producing sudden wind gusts, lightning, heavy rain, and rough seas. These conditions pose a significant danger to small vessels, according to meteorologists.
A Special Marine Warning is typically issued when thunderstorms with winds of 34 knots (39 mph) or greater develop over coastal waters. The National Weather Service said boaters should avoid the affected areas. No specific incidents have been reported yet, but the warning emphasizes the need for caution as conditions could worsen.
Local mariners and boating groups have been advised to monitor updates from the National Weather Service and delay planned trips. The warning does not apply to inland waters or areas beyond 60 nautical miles from shore. Authorities said the storm system is expected to move inland by late afternoon, but conditions remain unpredictable.