Frederick, MD Warnings, Watches and Advisories

When a severe thunderstorm warning is issued, the storm may produce damaging winds, large hail, dangerous lightning, and heavy rain. In some cases, heavy rainfall produced by a severe storm can also lead to flash flooding. Do not drive vehicles through flooded areas. The water depth or fast flowing water/mud/debris from a flash flood will make road conditions unsafe. Do not rely soley on data presented here or other third-party websites - always check your official national and local weather service agency website, socials, radio and/or TV stations for making critical decisions related to weather events.

Please carefully read each posted Warning and Alert as it relates to the area(s) being affected. We may provide a wider range of issued severe weather warnings for surrounding cities and counties, so some alerts may not directly impact this location. This is done to help with preparing for severe weather that may overlap or be heading towards Frederick.

Use the Radar Maps link provided to understand the trajectory of a storm.

Test Message

Monitoring message only. Please disregard.

Coastal Flood Statement issued September 6 at 1:34PM EDT until September 6 at 11:00PM EDT by NWS Wakefield VA

* WHAT...Up to one half foot of inundation above ground level expected in low-lying areas near shorelines and tidal waterways. * WHERE...In Maryland, Inland Worcester and Maryland Beaches Counties. In Virginia, Accomack and Northampton Counties. * WHEN...From 3 PM EDT this afternoon through this evening. * IMPACTS...Shallow flooding is possible in the most vulnerable locations near the waterfront and shoreline.

Coastal Flood Statement issued September 6 at 1:34PM EDT until September 7 at 1:00AM EDT by NWS Wakefield VA

* WHAT...Up to one half foot of inundation above ground level expected in low-lying areas near shorelines and tidal waterways. * WHERE...Dorchester, Wicomico and Somerset Counties. * WHEN...From this evening through late tonight. * IMPACTS...Shallow flooding is possible in the most vulnerable locations near the waterfront and shoreline.