Maryland Severe Flood Warning | Effective 08/11/2026 04:20

Headline: 
Flood Warning issued August 11 at 7:20AM EDT until August 11 at 2:00PM EDT by NWS Baltimore MD/Washington DC
Event: 
Flood Warning
Urgency: 
Expected
Effective: 
August 11, 2026 - 4:20am
Expires: 
August 11, 2026 - 11:00am
Description: 
* WHAT...Small stream flooding caused by excessive rainfall continues. * WHERE...A portion of western Maryland, including the following county, Garrett. * WHEN...Until 200 PM EDT Tuesday. * IMPACTS...Roads remain closed due to flooding. Low-water crossings are inundated with water and may not be passable. It will take several hours for all the water from these storms to work downstream. * ADDITIONAL DETAILS... - At 714 AM EDT, the Cassleman River level at Grantsville is at 7.1 feet and is still rising. Emergency Management reports high water along the Cassleman River at Durst Road, Jennings Road, Dung Hill Road, Bittinger Road, and Maple Grove Road. - Flooding impacts will continue, but no additional rainfall is expected through mid morning. - Some locations that will experience flooding include... Bittinger... Grantsville... Friendsville... Accident... Jennings... Keysers Ridge... New Germany... Mineral Spring... Merrill... Selbysport... Piney Grove... - Please visit www.weather.gov/safety/flood for flood safety and preparedness information.
Instruction: 
Turn around, don't drown when encountering flooded roads. Most flood deaths occur in vehicles. In hilly terrain there are hundreds of low water crossings which are potentially dangerous in heavy rain. Do not attempt to cross flooded roads. Find an alternate route.
Area Description: 
Garrett, MD
Forcast Office: 
NWS Baltimore MD/Washington DC
Sender: 
w-nws.webmaster@noaa.gov