Alert archive / Maryland / Frederick County / Severe Thunderstorm Warnings

Severe Thunderstorm Warnings in Frederick County, Maryland, 2026

53 severe thunderstorm warnings in 2026. An alert counts here when it covered this county. The archive of severe thunderstorm warnings reaches back to 1986.

Frederick County and its neighbors

Each county as a circle sized by its count in 2026. Tap one for its archive.

Severe Thunderstorm Warnings
53
Busiest month
July18 severe thunderstorm warnings
Busiest day
August 10, 20267 severe thunderstorm warnings

Over time

By month

The alerts

Every alert, in the order issued. Times are local, Eastern Time. Each opens its own page with the text, the map, the radar and the sounding.

IssuedProductOfficeLasted
Mar 11, 6:09 PM EDTSevere Thunderstorm WarningLWX51 min
Mar 11, 6:40 PM EDTSevere Thunderstorm WarningLWX35 min
Mar 11, 6:40 PM EDTSevere Thunderstorm Warning Considerable damage threatLWX35 min
Mar 11, 6:56 PM EDTSevere Thunderstorm WarningLWX34 min
Mar 16, 10:57 AM EDTSevere Thunderstorm Warning Considerable damage threatLWX48 min
Mar 16, 11:28 AM EDTSevere Thunderstorm Warning Considerable damage threatLWX17 min
Mar 16, 11:40 AM EDTSevere Thunderstorm WarningLWX50 min
Mar 16, 8:33 PM EDTSevere Thunderstorm WarningLWX42 min
May 13, 7:11 PM EDTSevere Thunderstorm WarningLWX34 min
May 20, 2:46 PM EDTSevere Thunderstorm WarningLWX44 min
May 20, 3:41 PM EDTSevere Thunderstorm WarningLWX34 min
Jun 6, 4:29 PM EDTSevere Thunderstorm WarningLWX46 min
Jun 6, 5:11 PM EDTSevere Thunderstorm Warning Considerable damage threatLWX64 min
Jun 6, 5:17 PM EDTSevere Thunderstorm WarningLWX58 min
Jun 6, 5:51 PM EDTSevere Thunderstorm Warning Considerable damage threatLWX54 min
Jun 6, 5:57 PM EDTSevere Thunderstorm WarningLWX48 min
Jun 11, 6:45 PM EDTSevere Thunderstorm WarningLWX45 min
Jun 11, 7:18 PM EDTSevere Thunderstorm WarningLWX42 min
Jun 11, 7:54 PM EDTSevere Thunderstorm WarningLWX36 min
Jun 14, 8:21 PM EDTSevere Thunderstorm WarningLWX39 min
Jul 4, 5:18 PM EDTSevere Thunderstorm WarningLWX27 min
Jul 4, 5:45 PM EDTSevere Thunderstorm WarningLWX60 min
Jul 4, 6:04 PM EDTSevere Thunderstorm WarningLWX41 min
Jul 4, 6:15 PM EDTSevere Thunderstorm Warning Destructive damage threatLWX30 min
Jul 4, 6:45 PM EDTSevere Thunderstorm WarningLWX30 min
Jul 9, 1:51 PM EDTSevere Thunderstorm WarningLWX39 min
Jul 9, 2:13 PM EDTSevere Thunderstorm WarningLWX32 min
Jul 18, 1:55 PM EDTSevere Thunderstorm WarningLWX50 min
Jul 18, 2:12 PM EDTSevere Thunderstorm WarningLWX33 min
Jul 18, 2:26 PM EDTSevere Thunderstorm Warning Considerable damage threatLWX49 min
Jul 18, 2:34 PM EDTSevere Thunderstorm WarningLWX41 min
Jul 18, 2:41 PM EDTSevere Thunderstorm WarningLWX28 min
Jul 18, 3:00 PM EDTSevere Thunderstorm Warning Considerable damage threatLWX49 min
Jul 28, 3:32 PM EDTSevere Thunderstorm WarningLWX58 min
Jul 28, 3:59 PM EDTSevere Thunderstorm WarningLWX46 min
Jul 28, 4:16 PM EDTSevere Thunderstorm Warning Considerable damage threatLWX44 min
Jul 28, 4:21 PM EDTSevere Thunderstorm WarningLWX43 min
Jul 28, 4:36 PM EDTSevere Thunderstorm WarningLWX54 min
Aug 7, 3:29 PM EDTSevere Thunderstorm WarningLWX46 min
Aug 10, 2:29 PM EDTSevere Thunderstorm WarningLWX31 min
Aug 10, 2:46 PM EDTSevere Thunderstorm WarningLWX44 min
Aug 10, 2:50 PM EDTSevere Thunderstorm WarningLWX25 min
Aug 10, 3:10 PM EDTSevere Thunderstorm WarningLWX65 min
Aug 10, 3:15 PM EDTSevere Thunderstorm WarningLWX60 min
Aug 10, 3:21 PM EDTSevere Thunderstorm WarningLWX39 min
Aug 10, 3:55 PM EDTSevere Thunderstorm Warning Considerable damage threatLWX50 min
Aug 20, 2:46 PM EDTSevere Thunderstorm WarningLWX29 min
Aug 27, 5:40 PM EDTSevere Thunderstorm WarningLWX50 min
Aug 27, 6:20 PM EDTSevere Thunderstorm WarningLWX40 min
Aug 27, 6:56 PM EDTSevere Thunderstorm WarningLWX49 min
Sep 2, 12:00 PM EDTSevere Thunderstorm WarningLWX45 min
Sep 2, 12:46 PM EDTSevere Thunderstorm WarningLWX44 min
Sep 3, 10:08 PM EDTSevere Thunderstorm WarningLWX52 min

The busiest days

Days with the most alerts issued, by UTC date.

  1. August 10, 20267severe thunderstorm warnings
  2. July 18, 20266severe thunderstorm warnings
  3. June 6, 20265severe thunderstorm warnings
  4. July 4, 20265severe thunderstorm warnings
  5. July 28, 20265severe thunderstorm warnings
  6. March 11, 20264severe thunderstorm warnings
  7. March 16, 20263severe thunderstorm warnings
  8. June 11, 20263severe thunderstorm warnings
  9. August 27, 20263severe thunderstorm warnings
  10. May 20, 20262severe thunderstorm warnings

Nearby

Alerts in force nowTornadoes on recordForecastThe radar archive2025

Sources

National Weather Service watches, warnings, advisories and statements from the Iowa Environmental Mesonet's VTEC archive, which reconstructs tornado, severe thunderstorm, flash flood and marine warnings back to 1986 from the NWS text archive. Storm Prediction Center watches and mesoscale discussions from SPC's archive through the Mesonet. County centers from the US Census Bureau. Warning verification from the Mesonet's Cow. Rebuilt daily.