Special Marine Warning Issued for Waters from Jupiter Inlet to Deerfield Beach FL

Weather Alerts high NOAA · · Southeast Florida Coast

A Special Marine Warning is in effect for offshore Florida waters until 10:30 AM EST due to a severe thunderstorm capable of producing waterspouts and large hail.

Alert Details

The National Weather Service in Miami has issued a Special Marine Warning for offshore Atlantic waters. The alert was issued at 9:52 AM EST on March 1, 2026, following radar detection of hazardous conditions.

Affected Areas

The warning specifically impacts the waters from Jupiter Inlet to Deerfield Beach, Florida, extending from 20 to 60 nautical miles offshore.

What You Should Do

Mariners and residents in the affected area should take the following actions:

  • Move to safe harbor immediately until the hazardous weather passes.
  • Small craft should be secured, as they could be damaged by briefly higher winds and suddenly higher waves.
  • Report any sightings of severe weather to the Coast Guard or the National Weather Service.
  • Observations can also be shared with NWS Miami via their social media channels on Facebook and Twitter.

Expected Conditions

At 9:51 AM EST, a severe thunderstorm was located 42 nautical miles east of Ocean Ridge, moving southeast at 15 knots. According to the National Weather Service, the following hazards are expected:

  • Waterspouts: These can easily overturn boats and create locally hazardous seas.
  • Wind: Gusts of 34 knots or greater are possible.
  • Large Hail: Potential for structural damage to vessels.

The severe thunderstorm is expected to remain primarily over open waters.

Timeline

The warning is effective immediately as of 9:52 AM EST and is currently set to expire at 10:30 AM EST on March 1, 2026.

Source: NOAA Official Notice