Tornado Warnings in Maryland
705 tornado warnings since 1986. An alert counts here when it covered any part of the state, so the counties below add up to more than the state. The archive of tornado warnings reaches back to 1986.
Tornado Warnings by county
Each county as a circle sized by its count since 1986. Tap one for its archive.
- Tornado Warnings
- 705
- Busiest year
- 201157 tornado warnings
- Average year
- 18over 39 years on file
Over time
By year
Before October 2007 these were issued for whole counties, and a storm crossing three counties was often three warnings; since then one polygon follows the storm. The count changed with the practice, not only with the weather.
By month of the year
By county
Every county with at least one alert. A county page lists each alert that covered it.
- Baltimore County105
- Charles County91
- Prince George's County89
- Saint Mary's County73
- Carroll County70
- Anne Arundel County67
- Harford County64
- Montgomery County61
- Howard County57
- Frederick County56
- Calvert County51
- Queen Anne's County42
- Kent County35
- Cecil County34
- Worcester County33
- Wicomico County33
- Washington County33
- Dorchester County29
- Caroline County27
- Allegany County27
- Somerset County26
- Talbot County25
- City of Baltimore22
- Garrett County12
The latest tornado warnings
The most recent on file, newest first.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Aug 20, 8:23 PM EDT | Tornado Warning | AKQ | Wicomico, Worcester | 27 min |
| Aug 20, 7:08 PM EDT | Tornado Warning | LWX | Saint Mary's | 16 min |
| Aug 20, 6:55 PM EDT | Tornado Warning | LWX | Saint Mary's | 22 min |
| Aug 20, 6:41 PM EDT | Tornado Warning | AKQ | Dorchester | 34 min |
| Aug 20, 5:39 PM EDT | Tornado Warning | PHI | Queen Anne's | 36 min |
| Aug 20, 5:30 PM EDT | Tornado Warning | PHI | Kent, Queen Anne's | 30 min |
| Aug 20, 2:43 PM EDT | Tornado Warning | PHI | Kent, Queen Anne's | 32 min |
| Aug 16, 8:59 PM EDT | Tornado Warning | LWX | Charles, Prince George's | 16 min |
| Aug 10, 4:18 PM EDT | Tornado Warning | LWX | Anne Arundel, Baltimore, Howard, City of Baltimore | 13 min |
| Aug 10, 4:14 PM EDT | Tornado Warning | LWX | Baltimore, Carroll, Howard, City of Baltimore | 18 min |
| Aug 10, 1:49 PM EDT | Tornado Warning | LWX | Allegany, Garrett | 26 min |
| Jul 28, 6:55 PM EDT | Tornado Warning | PHI | Queen Anne's, Talbot | 35 min |
Nearby
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. Rebuilt daily.