Special Marine Warning Issued for Biscayne Bay and South Florida Waters

Source: NOAA · South Florida Coastal Waters

This alert is no longer in effect.

NOAA issued it on June 20, 2026, 2 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.

NWS Miami has issued a Special Marine Warning for Biscayne Bay and nearby coastal waters until 7:45 PM EDT due to strong thunderstorms.

Read this weather record in 30 seconds

Record type
Special Marine Warning
Affected area
South Florida Coastal Waters
Issued
June 20, 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 2 months ago; use the issuing agency's live warning service for current conditions in South Florida Coastal Waters.

Alert Details

A Special Marine Warning was issued by NWS Miami FL at 7:11 PM EDT on June 2, 2026. The alert is effective from 7:11 PM EDT until 7:45 PM EDT.

Affected Areas

Biscayne Bay; 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 Deerfield Beach to Ocean Reef FL from 20 to 60 NM excluding the territorial waters of Bahamas. Impacted locations include Sunny Isles, Lauderdale-By-The-Sea, Lighthouse Point, Hillsboro Beach, Sea Ranch Lakes, Golden Beach, Bal Harbour, Surfside, Miami Beach, Pompano Beach, Fort Lauderdale, Deerfield Beach, and Hollywood.

What You Should Do

Move to safe harbor until hazardous weather passes. Frequent lightning is occurring with these storms. If caught on the open water stay below deck if possible, keep away from ungrounded metal objects. Report severe weather to the Coast Guard or the National Weather Service.

Expected Conditions

At 7:11 PM EDT, strong thunderstorms were located along a line extending from Port Everglades to near Virginia Key, moving northeast at 20 knots. Hazard includes wind gusts 34 knots or greater and small hail.

Timeline

The warning is in effect from June 2 at 7:11 PM EDT until June 2 at 7:45 PM EDT.

Original source: NOAA Official Notice ↗

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Nationwide notices with similar length or severity timing 8

Two Areazine-derived peer sets for this NWS weather alert: nearest notices by body length and by same severity near the same agency date. Peers come from other categories so they are not the same-feed Related list above.

Frequently Asked Questions

Common questions about this NWS weather alert.

What is this NWS weather alert about?
NWS Miami has issued a Special Marine Warning for Biscayne Bay and nearby coastal waters until 7:45 PM EDT due to strong thunderstorms.
Which agency issued this alert?
This alert was issued by NOAA. The original notice is available at the source link at the bottom of this article.
How severe is this alert?
This alert is classified as "high" severity. Take precautions and monitor for updates.
What area is affected?
This alert affects South Florida Coastal Waters. Check with NOAA for the most current geographic scope.
Where can I find more Weather Alerts updates?
Browse the full Weather Alerts feed on Areazine at areazine.com/weather/ for the latest updates from NOAA and other agencies.