Special Marine Warning Issued for Biscayne Bay and South Florida Coastal Waters
This alert is no longer in effect.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).
Areazine synthesizes this NWS weather alert directly from NOAA's official public data feed. See our methodology for full source attribution and refresh cadence.
The National Weather Service has issued a Special Marine Warning for Biscayne Bay and coastal waters until 1:30 PM EST due to a strong thunderstorm producing high wind gusts and hail.
Read this weather record in 30 seconds
- Record type
- Special Marine Warning
- Affected area
- South Florida Coastal Waters
- Issued
- April 6, 2026
- Issuing authority
- NWS Miami
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 South Florida Coastal Waters.
Alert Details
The National Weather Service in Miami has issued a Special Marine Warning (SMW) for the region. This alert is effective immediately following the detection of hazardous weather conditions by radar.
Affected Areas
The warning covers Biscayne Bay and the coastal waters from Deerfield Beach to Ocean Reef, FL, extending out to 20 nautical miles. Specific locations impacted by this storm include:
- Soldier Key
- Convoy Point
- Turkey Point
- Biscayne Bay
- Elliott Key
- Black Point
- Coral Gables
What You Should Do
Mariners are advised to move to safe harbor immediately until the hazardous weather passes. Small craft are particularly vulnerable and could be damaged in briefly higher winds and suddenly higher waves. Residents and boaters should report any severe weather to the Coast Guard or the National Weather Service Miami office via Facebook or Twitter.
Expected Conditions
Radar indicated a strong thunderstorm located over Black Point at 12:54 PM EST, moving south at 10 knots. The primary hazards associated with this cell include:
- Wind: Gusts of 34 knots or greater.
- Hail: Small hail is possible within the storm area.
- Waves: Suddenly higher waves are expected near the thunderstorm.
Timeline
The alert was issued at 12:54 PM EST on March 1, 2026, and is currently scheduled to expire at 1:30 PM EST.
Original source: NOAA Official Notice ↗
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