Special Marine Warning Issued for Tidal Potomac River MD
This alert is no longer in effect.
NOAA issued it on June 12, 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 Baltimore/Washington has issued a Special Marine Warning for the Tidal Potomac River due to a strong thunderstorm with high winds and small hail until 9:45 PM EDT.
Read this weather record in 30 seconds
- Record type
- Special Marine Warning
- Affected area
- Tidal Potomac River, Maryland
- Issued
- June 12, 2026
- Issuing authority
- NWS Baltimore MD/Washington DC
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 Tidal Potomac River, Maryland.
Alert Details
Special Marine Warning issued by NWS Baltimore MD/Washington DC. Effective from 2026-05-27T20:18:00-04:00 until 2026-05-27T21:45:00-04:00.
Affected Areas
Tidal Potomac from Key Bridge to Indian Head MD; Tidal Potomac from Indian Head to Cobb Island MD. Locations impacted include Potomac Creek, Widewater, Maryland Point, Nanjemoy Creek, Port Tobacco River, Leesylvania State Park, Smallwood State Park, Quantico, Gunston Hall, Mathias Point, U.S. 301 Nice Memorial Bridge, Mason Neck State Park, Indian Head, Occoquan Bay, Popes Creek, Brent Point, and Fairview Beach.
What You Should Do
Move to safe harbor until hazardous weather passes.
Expected Conditions
At 8:18 PM EDT, a strong thunderstorm located 16 nm northwest of Leesylvania State Park moving southeast at 25 knots. Hazard includes wind gusts 34 knots or greater and small hail.
Timeline
Alert in effect from 8:18 PM EDT May 27, 2026 until 9:45 PM EDT May 27, 2026.
Original source: NOAA Official Notice ↗
Related Weather Alerts
All Weather Alerts →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.
Similar body length
Nearest notices by article body length (961 characters here).
Similar severity timing
Same severity (high) notices issued closest in time to June 12, 2026.
Frequently Asked Questions
Common questions about this NWS weather alert.