Special Marine Warning Issued for Southeast Florida Coastal Waters Through 2:00 PM EDT
According to the U.S. Census Bureau's American Community Survey (ACS) 5-year estimates, the CDC PLACES population-level health analysis, and the CMS Hospital Compare quality data, Areazine publishes editorial articles drawing on more than 19,000 U.S. city profiles. See our methodology for full source attribution and refresh cadence.
The National Weather Service has issued a Special Marine Warning for Florida coastal waters from Jupiter Inlet to Ocean Reef as severe thunderstorms capable of producing waterspouts move through the region.
What this NWS weather alert tells you, and what most readers miss
This notice was issued by NOAA on March 27, 2026 and geographically references Southeast Florida Coastal Waters. Its severity classification of "high" signals how the issuing agency weighs the risk of harm if no action is taken — "critical" and "high" tier alerts typically carry direct consumer actions, while "medium" and "low" tend toward informational guidance or monitoring advisories. The category it belongs to — Weather Alerts — determines the regulatory framework behind it, which shapes what remedies (refunds, replacements, recalls, evacuations) are available to affected individuals and who holds statutory responsibility for enforcement.
Most readers skim a notice like this, check whether they are personally affected, and move on. The more useful lens is to read it as a data point about the issuing system: how quickly NOAA detected the hazard, how precise the geographic or product-identifier scope is, and whether similar notices have clustered in the same category or region in the last 90 days. Cluster patterns frequently precede a broader regulatory action — a single localized NWS weather alert is isolated; three of them within a quarter often indicate a supply-chain, infrastructure, or seasonal driver that will keep producing notices until something structural changes.
For decision-making, Areazine pairs each alert with the original agency URL, the full agency name, and a timestamp so you can verify the notice against the primary source before acting on it. Tags on this item (weather, alert, SpecialMarineWarning, Florida) map to related alerts in the same area of risk — browsing them together gives a clearer picture than any single notice alone, because the shape of an ongoing issue only becomes visible across multiple sequential alerts.
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.
Original source: NOAA Official Notice ↗
Related Weather Alerts
All Weather Alerts →Frequently Asked Questions
Common questions about this NWS weather alert.
What is this NWS weather alert about? ▾
Which agency issued this alert? ▾
How severe is this alert? ▾
What area is affected? ▾
Where can I find more Weather Alerts updates? ▾
Primary source data
EPA Outdoor Air Quality Data
Federal monitoring network — every measurement we report
AirNow (EPA / NOAA)
Real-time AQI for every monitored U.S. location
National Weather Service
Active watches, warnings, and advisories — NOAA
CDC Air Quality & Health
Health-impact reference behind every AQI category