Flash Flood Warning — Garrett County, Maryland
Flooding is imminent or already occurring. Move to higher ground immediately — never drive through flooded roads.
Current Status
🌊 Active: Flash Flood Warning
Flash Flood Warning issued August 11 at 4:12AM EDT until August 11 at 6:00AM EDT by NWS Baltimore MD/Washington DC
FFWLWX The National Weather Service in Sterling Virginia has extended the * Flash Flood Warning for... Northern Garrett County in western Maryland... * Until 600 AM EDT. * At 412 AM EDT, Emergency management reports an ongoing water rescue in the vicinity of the Casselman River and Bittinger Road. Several homes have also been reported to have flooded basements between Grantsville and Bittinger. Between 1.5 and 4 inches of rain have fallen. The expected rainfall rate is 0.25 to 0.5 inches in 1 hour. Flash flooding is already occurring. HAZARD...Flash flooding caused by thunderstorms. SOURCE...Emergency management reported. IMPACT...Flash flooding of small creeks and streams, urban areas, highways, streets and underpasses as well as other poor drainage and low-lying areas. * Some locations that will experience flash flooding include... Bittinger... Grantsville... Friendsville... Accident... Jennings... Keysers Ridge.
Effective August 11, 2026 at 4:12 AM ET · Expires August 11, 2026 at 6:00 AM ET
Event Details
Event Type
Flash Flood Warning
Severity
severe
Issued By
NWS Baltimore MD/Washington DC
Expires
August 11, 2026 at 6:00 AM ET
Last Checked
just now
What To Do
📋 Official NWS Guidance
Turn around, don't drown when encountering flooded roads. Most flood deaths occur in vehicles. Be especially cautious at night when it is harder to recognize the dangers of flooding. Be aware of your surroundings and do not drive on flooded roads. 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. Please report observed flooding to local emergency services or law enforcement and request they pass this information to the National Weather Service when you can do so safely.
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Get Flash Flood Warning Alerts for Garrett County
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Frequently Asked Questions
What does a Flash Flood Warning mean for Garrett County, Maryland?
Flooding is imminent or already occurring. Move to higher ground immediately — never drive through flooded roads.
Is this Flash Flood Warning currently active?
Yes — this alert is active as of our last check (just now). It's set to expire August 11, 2026 at 6:00 AM ET.
How do I get notified about Flash Flood Warning alerts for Garrett County?
Download StormCast free on Google Play and set Garrett County, Maryland as one of your monitored locations. StormCast checks the NWS feed continuously and pushes alerts like this directly to your phone — even with the screen off.