Weather alerts in Pennsylvania, 2026
2,559 weather alerts in 2026, 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 2026. Tap one for its archive.
- Alerts
- 2,559
- Warnings
- 1,549
- Watches
- 166
- Advisories
- 250
- Busiest month
- July611 alerts
- Busiest day
- September 3, 2026142 alerts
Over time
By month
The alerts
2,559 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.
- Westmoreland County230
- Bucks County230
- Butler County229
- Clarion County225
- Crawford County223
- Allegheny County221
- Montgomery County218
- Clearfield County215
- Washington County215
- Centre County214
- Armstrong County211
- Delaware County210
- Lancaster County203
- Chester County200
- Venango County199
- Jefferson County198
- Philadelphia County196
- Elk County194
- Fayette County190
- Beaver County189
- Erie County189
- York County187
- Indiana County186
- Cambria County184
- Mercer County179
- Lawrence County178
- Somerset County172
- Warren County172
- McKean County171
- Huntingdon County168
- Berks County166
- Forest County165
- Dauphin County163
- Clinton County162
- Blair County159
- Lycoming County157
- Lebanon County156
- Greene County151
- Northampton County151
- Potter County149
27 more counties
- Cumberland County148
- Cameron County147
- Perry County145
- Adams County145
- Bedford County144
- Schuylkill County142
- Lehigh County141
- Franklin County140
- Fulton County134
- Mifflin County134
- Monroe County134
- Juniata County129
- Tioga County128
- Wayne County125
- Sullivan County121
- Luzerne County119
- Union County119
- Northumberland County118
- Snyder County118
- Carbon County117
- Columbia County115
- Susquehanna County113
- Lackawanna County108
- Montour County106
- Bradford County105
- Pike County100
- Wyoming County95
The busiest days
Days with the most alerts issued, by UTC date.
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.