Flash Flood Warning — Harford 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 7 at 5:55PM EDT until August 7 at 7:45PM EDT by NWS Baltimore MD/Washington DC
At 555 PM EDT, Doppler radar indicated around 2 to 5 inches of rain have fallen across most of the warned area within the last couple hours. Excess runoff from the heavy rain will lead to flash flooding. The Harford County 911 Center reported around a foot of flowing water in Joppatowne around Joppa Farm Road and Barksdale Road. Additional rainfall amounts up to one inch are expected within the next hour. HAZARD...Flash flooding caused by thunderstorms. SOURCE...Radar. 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... Parkville... Carney... Perry Hall... Rosedale... Rossville... White Marsh... Kingsville... Edgewood... Joppatowne... Gunpowder... Upper Falls... Bradshaw... Nottingham...
Effective August 7, 2026 at 5:55 PM ET · Expires August 7, 2026 at 7:45 PM ET
Event Details
Event Type
Flash Flood Warning
Severity
severe
Issued By
NWS Baltimore MD/Washington DC
Expires
August 7, 2026 at 7:45 PM ET
Last Checked
2 hours ago
What To Do
📋 Official NWS Guidance
Turn around, don't drown when encountering flooded roads. Most flood deaths occur in vehicles.
Other Active Alerts in Maryland
Test Message
Severe Thunderstorm Watch
Severe Thunderstorm Watch
Severe Thunderstorm Watch
Flash Flood Warning
Flash Flood Warning
Get Flash Flood Warning Alerts for Harford County
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Frequently Asked Questions
What does a Flash Flood Warning mean for Harford 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 (2 hours ago). It's set to expire August 7, 2026 at 7:45 PM ET.
How do I get notified about Flash Flood Warning alerts for Harford County?
Download StormCast free on Google Play and set Harford 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.