Special Marine Warning Issued for Southeast Florida Coastal Waters Through 2:00 PM EDT

Alert Details

The National Weather Service in Miami has issued a Special Marine Warning for several coastal and offshore zones in Southeast Florida. The alert was issued at 1:15 PM EDT on March 13 and remains in effect until 2:00 PM EDT. This is an immediate-urgency alert based on radar-detected hazards.

Affected Areas

The warning covers the following maritime regions:

• Coastal waters from Jupiter Inlet to Deerfield Beach FL out 20 NM
• Coastal waters from Deerfield Beach to Ocean Reef FL out 20 NM
• Waters from Jupiter Inlet to Deerfield Beach FL from 20 to 60 NM

Expected Conditions

At 1:15 PM EDT, radar indicated severe thunderstorms capable of producing waterspouts. These storms were located along a line extending from 16 nautical miles east of Ocean Ridge to 33 nautical miles east of Palm Beach, moving south at 10 knots.

Primary hazards include:

• Waterspouts: Capable of easily overturning boats and creating locally hazardous seas.
• Wind: Gusts of 34 knots or greater.
• Waves: Small craft could be damaged in briefly higher winds and suddenly higher waves.

Severe thunderstorms are expected to remain primarily over open waters.

What You Should Do

Mariners are advised to move to safe harbor immediately until the hazardous weather passes. Small craft should take particular care as they are vulnerable to damage from sudden wind and wave increases.

Residents and mariners are encouraged to report severe weather to the Coast Guard or the National Weather Service. Reports can also be shared with NWS Miami via Facebook and Twitter.

Timeline

The warning is effective immediately as of 1:15 PM EDT and is currently scheduled to expire at 2:00 PM EDT on March 13, 2026.