Weather alerts in Maryland, 2011
2,027 weather alerts in 2011, from the National Weather Service and the Storm Prediction Center. An alert counts here when it covered any part of the state, so the counties below add up to more than the state.
Weather alerts by county
Each county as a circle sized by its count in 2011. Tap one for its archive.
- Alerts
- 2,027
- Warnings
- 629
- Watches
- 163
- Advisories
- 295
- Busiest month
- August352 alerts
- Busiest day
- August 19, 201169 alerts
Over time
By month
The alerts
2,027 alerts are too many to list on one page. Narrow it to a product above, to a month in the chart, or to a county.
By product
Every kind of product issued here, grouped by hazard. Each opens the same place narrowed to that product.
By county
Every county with at least one alert. A county page lists each alert that covered it.
- Anne Arundel County336
- Prince George's County334
- Baltimore County330
- City of Baltimore295
- Queen Anne's County278
- Caroline County273
- Charles County268
- Cecil County264
- Kent County262
- Frederick County260
- Calvert County259
- Washington County256
- Talbot County247
- Saint Mary's County245
- Allegany County240
- Carroll County225
- Montgomery County215
- Howard County182
- Dorchester County176
- Harford County171
- Worcester County163
- Wicomico County161
- Somerset County149
- Garrett County114
The busiest days
Days with the most alerts issued, by UTC date.
Nearby
Alerts in force nowTornadoes on recordThe radar archive20102012
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.