Weather alerts in Pennsylvania, 2016
2,131 weather alerts in 2016, 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 2016. Tap one for its archive.
- Alerts
- 2,131
- Warnings
- 512
- Watches
- 91
- Advisories
- 421
- Busiest month
- July430 alerts
- Busiest day
- July 25, 201695 alerts
Over time
By month
The alerts
2,131 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 County199
- Chester County194
- Montgomery County187
- Delaware County171
- Philadelphia County157
- Westmoreland County155
- Northampton County155
- Berks County153
- Lancaster County153
- York County149
- Allegheny County146
- Fayette County144
- Lehigh County142
- Monroe County137
- Washington County132
- Adams County131
- Centre County122
- Cumberland County121
- Carbon County120
- Lycoming County117
- Lebanon County116
- Erie County115
- Clearfield County113
- Butler County113
- Somerset County112
- Dauphin County112
- Schuylkill County111
- Clinton County107
- Franklin County104
- Warren County103
- Armstrong County103
- Beaver County103
- Clarion County103
- Huntingdon County103
- McKean County100
- Cambria County98
- Elk County98
- Venango County97
- Bedford County97
- Jefferson County95
27 more counties
- Wayne County93
- Union County93
- Perry County93
- Northumberland County92
- Cameron County91
- Columbia County91
- Mercer County90
- Sullivan County90
- Juniata County89
- Blair County88
- Lawrence County87
- Mifflin County87
- Fulton County85
- Potter County85
- Greene County84
- Snyder County82
- Montour County81
- Susquehanna County79
- Crawford County78
- Luzerne County78
- Forest County76
- Bradford County73
- Lackawanna County73
- Tioga County73
- Pike County71
- Indiana County70
- Wyoming County59
The busiest days
Days with the most alerts issued, by UTC date.
Nearby
Alerts in force nowTornadoes on recordThe radar archive20152017
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.