Weather alerts in Pennsylvania, 2023
2,883 weather alerts in 2023, 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 2023. Tap one for its archive.
- Alerts
- 2,883
- Warnings
- 927
- Watches
- 117
- Advisories
- 483
- Busiest month
- July922 alerts
- Busiest day
- June 26, 2023130 alerts
Over time
By month
The alerts
2,883 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.
- Montgomery County265
- Chester County258
- Bucks County250
- Delaware County228
- Philadelphia County228
- Berks County220
- Susquehanna County188
- Northampton County187
- Lehigh County185
- Monroe County183
- Wayne County181
- Pike County179
- Lycoming County179
- Luzerne County172
- Schuylkill County166
- Lackawanna County166
- Carbon County163
- Lancaster County163
- Columbia County160
- York County155
- Northumberland County153
- Lebanon County153
- Wyoming County152
- Bradford County148
- Dauphin County147
- Sullivan County144
- Montour County136
- Centre County131
- Clinton County129
- Union County124
- Erie County123
- Westmoreland County122
- Snyder County118
- Perry County118
- Cumberland County115
- Huntingdon County113
- Juniata County112
- Allegheny County112
- Blair County111
- Butler County111
27 more counties
- Crawford County108
- Adams County108
- Beaver County105
- Cambria County104
- Mifflin County104
- Franklin County100
- Somerset County99
- Fayette County97
- Washington County96
- Lawrence County96
- Indiana County95
- Armstrong County94
- Bedford County93
- Clearfield County91
- Venango County90
- Jefferson County90
- Clarion County89
- Tioga County88
- Warren County88
- Mercer County88
- Cameron County85
- Fulton County83
- Elk County81
- Forest County81
- Greene County75
- Potter County71
- McKean County64
The busiest days
Days with the most alerts issued, by UTC date.
Nearby
Alerts in force nowTornadoes on recordThe radar archive20222024
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.