Special Marine Warning Issued for Southeast Florida Coastal Waters Through Saturday Afternoon
This alert is no longer in effect.
NOAA issued it on April 6, 2026, 4 months ago. Warnings of this kind stay in effect for hours to a few days, so this page is a historical record of what was issued, not a current warning. For conditions where you are right now, check weather.gov (US), weather.gc.ca (Canada), the Met Office (UK), or the Bureau of Meteorology (Australia).
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The National Weather Service in Miami has issued a Special Marine Warning for coastal and offshore waters from Jupiter Inlet to Ocean Reef until 4:45 PM EST due to severe thunderstorms and possible waterspouts.
Read this weather record in 30 seconds
- Record type
- Special Marine Warning
- Affected area
- Southeast Florida Coastal Waters
- Issued
- April 6, 2026
- Issuing authority
- NWS Miami FL
Marine notices apply to named waters or shoreline zones. They may not describe conditions on land, even when the nearest place name is the same.
Record status: historical. It was issued 4 months ago; use the issuing agency's live warning service for current conditions in Southeast Florida Coastal Waters.
Alert Details
The National Weather Service in Miami has issued a Special Marine Warning for the coastal and offshore waters of Southeast Florida. The alert was triggered by radar observations of severe thunderstorms capable of producing waterspouts, large hail, and high winds.
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
- Waters from Deerfield Beach to Ocean Reef FL from 20 to 60 NM (excluding the territorial waters of Bahamas)
Impacted coastal locations and nearby waters include Ocean Ridge, Lauderdale-By-The-Sea, Palm Beach, Hypoluxo, Lighthouse Point, Hillsboro Beach, Gulf Stream, Palm Beach Shores, Highland Beach, South Palm Beach, Sea Ranch Lakes, Manalapan, Briny Breezes, North Palm Beach, Delray Beach, Riviera Beach, Boca Raton, Pompano Beach, Fort Lauderdale, and Deerfield Beach.
What You Should Do
Boaters are advised to move to safe harbor immediately and remain there until the hazardous weather passes. If caught on open water, stay below deck if possible and keep away from ungrounded metal objects. Mariners should report severe weather to the Coast Guard or the National Weather Service.
Expected Conditions
At 3:43 PM EST, severe thunderstorms were located along a line extending from 19 nm east of Juno Beach to near Highland Beach, moving east at 20 knots. Hazards include:
- Waterspouts: Capable of easily overturning boats and creating locally hazardous seas.
- Wind: Gusts of 34 knots or greater, which can damage small craft and create suddenly higher waves.
- Hail: Large hail capable of causing structural damage.
- Additional Hazards: Frequent lightning and heavy rain.
Timeline
The warning was issued at 3:45 PM EST on February 28, 2026, and is effective until 4:45 PM EST.
Original source: NOAA Official Notice ↗
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