Weather alerts in Pennsylvania, 2024
2,943 weather alerts in 2024, 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 2024. Tap one for its archive.
- Alerts
- 2,943
- Warnings
- 1,155
- Watches
- 135
- Advisories
- 453
- Busiest month
- August578 alerts
- Busiest day
- August 6, 2024118 alerts
Over time
By month
The alerts
2,943 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.
- Bucks County245
- Allegheny County223
- Westmoreland County221
- Centre County211
- Montgomery County210
- Chester County199
- Clinton County198
- Delaware County195
- Philadelphia County195
- Butler County191
- Fayette County186
- Lycoming County185
- Indiana County185
- Armstrong County181
- Lehigh County180
- Clearfield County178
- Lancaster County178
- Washington County177
- Beaver County173
- Susquehanna County170
- York County168
- Huntingdon County167
- Northampton County167
- Blair County166
- Potter County165
- Luzerne County163
- Clarion County163
- Erie County163
- Dauphin County162
- Wayne County160
- Cambria County158
- Berks County158
- Lackawanna County157
- Mercer County156
- Monroe County154
- Tioga County153
- Jefferson County153
- Venango County152
- Northumberland County151
- Lawrence County149
27 more counties
- Schuylkill County146
- Union County146
- Bradford County146
- Somerset County144
- Crawford County144
- Cumberland County143
- Lebanon County143
- Snyder County143
- Carbon County143
- Columbia County141
- Juniata County140
- Greene County137
- Mifflin County135
- Cameron County134
- McKean County133
- Adams County131
- Montour County131
- Perry County129
- Elk County127
- Warren County126
- Bedford County123
- Forest County122
- Sullivan County121
- Wyoming County121
- Pike County119
- Franklin County111
- Fulton County106
The busiest days
Days with the most alerts issued, by UTC date.
Nearby
Alerts in force nowTornadoes on recordThe radar archive20232025
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.