Special Marine Warning Issued for Tidal Potomac from Cobb Island MD to Smith Point VA
This alert is no longer in effect.
NOAA issued it on July 8, 2026, 6 weeks 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 MD/Washington DC has issued a Special Marine Warning for the Tidal Potomac until 10:30 PM EDT due to strong thunderstorms with wind gusts 34 knots or greater.
Read this weather record in 30 seconds
- Record type
- Special Marine Warning
- Affected area
- Tidal Potomac from Cobb Island MD to Smith Point VA
- Issued
- July 8, 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 6 weeks ago; use the issuing agency's live warning service for current conditions in Tidal Potomac from Cobb Island MD to Smith Point VA.
Alert Details
Special Marine Warning issued by NWS Baltimore MD/Washington DC. Effective from June 11, 2026 at 8:36 PM EDT until June 11, 2026 at 10:30 PM EDT.
Affected Areas
Tidal Potomac from Cobb Island MD to Smith Point VA. Locations impacted include Yeocomico River, Breton Bay, Saint Clements Bay, Piney Point, Mouth Of The Potomac River, Point Lookout, Tall Timbers, Cobb Island, Town Creek, Coltons Point, Nomini Bay, Coles Point, Saint George Island, Wicomico River, Saint Marys River, White Point Beach, Drum Point, and Colonial Beach.
What You Should Do
Frequent lightning is occurring with these storms. If caught on the open water stay below deck if possible, keep away from ungrounded metal objects. Boaters in small craft could be thrown overboard by suddenly higher winds and waves capsizing their vessel.
Expected Conditions
At 8:34 PM EDT, strong thunderstorms were located along a line extending from 7 nm west of Chesapeake Beach to 11 nm northeast of Port Tobacco River to U.S. 301 Nice Memorial Bridge, moving east at 45 knots. Hazard: Wind gusts 34 knots or greater. Source: Radar indicated.
Timeline
Alert effective June 11, 2026 at 8:36 PM EDT and expires June 11, 2026 at 10:30 PM EDT.
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 (1,230 characters here).
Similar severity timing
Same severity (high) notices issued closest in time to July 8, 2026.
Frequently Asked Questions
Common questions about this NWS weather alert.