Alert archive / Pennsylvania / Severe Thunderstorm Warnings / 2017

Severe Thunderstorm Warnings in Pennsylvania, May 2017

84 severe thunderstorm warnings in May 2017. An alert counts here when it covered any part of the state, so the counties below add up to more than the state. The archive of severe thunderstorm warnings reaches back to 1986.

Severe Thunderstorm Warnings by county

Each county as a circle sized by its count in May 2017. Tap one for its archive.

Severe Thunderstorm Warnings: 84
Busiest day: May 1, 201736 severe thunderstorm warnings

Over time

By day

Days in UTC, the clock the archive keeps.

The alerts

Every alert, in the order issued. Times are local, Eastern Time. Each opens its own page with the text, the map, the radar and the sounding.

Issued	Product	Office	Counties	Lasted
May 1, 1:22 PM EDT	Severe Thunderstorm Warning	PBZ	Beaver, Greene, Washington	53 min
May 1, 1:35 PM EDT	Severe Thunderstorm Warning	PBZ	Beaver, Lawrence, Mercer	55 min
May 1, 1:45 PM EDT	Severe Thunderstorm Warning	CLE	Crawford, Erie	60 min
May 1, 1:47 PM EDT	Severe Thunderstorm Warning	PBZ	Mercer, Venango	43 min
May 1, 2:05 PM EDT	Severe Thunderstorm Warning	PBZ	Allegheny, Beaver, Butler, Lawrence, Mercer, Venango and 1 more	55 min
May 1, 2:11 PM EDT	Severe Thunderstorm Warning	PBZ	Allegheny, Greene, Washington	49 min
May 1, 2:22 PM EDT	Severe Thunderstorm Warning	CLE	Crawford, Erie	53 min
May 1, 2:26 PM EDT	Severe Thunderstorm Warning	PBZ	Clarion, Forest, Mercer, Venango	49 min
May 1, 2:37 PM EDT	Severe Thunderstorm Warning	CTP	Warren	68 min
May 1, 2:47 PM EDT	Severe Thunderstorm Warning	PBZ	Allegheny, Armstrong, Butler, Clarion, Indiana, Venango and 1 more	58 min
May 1, 2:54 PM EDT	Severe Thunderstorm Warning	PBZ	Allegheny, Fayette, Greene, Washington, Westmoreland	66 min
May 1, 3:10 PM EDT	Severe Thunderstorm Warning	PBZ	Armstrong, Clarion, Forest, Jefferson, Venango	65 min
May 1, 3:33 PM EDT	Severe Thunderstorm Warning	CTP	Elk, McKean	87 min
May 1, 3:34 PM EDT	Severe Thunderstorm Warning	PBZ	Armstrong, Clarion, Indiana, Jefferson, Westmoreland	56 min
May 1, 3:43 PM EDT	Severe Thunderstorm Warning	CTP	Warren	17 min
May 1, 3:56 PM EDT	Severe Thunderstorm Warning	CTP	Cambria, Clearfield	94 min
May 1, 4:22 PM EDT	Severe Thunderstorm Warning	CTP	Cameron, Potter	68 min
May 1, 4:52 PM EDT	Severe Thunderstorm Warning	CTP	Centre, Clinton	113 min
May 1, 5:01 PM EDT	Severe Thunderstorm Warning	CTP	Somerset	29 min
May 1, 5:03 PM EDT	Severe Thunderstorm Warning	PBZ	Fayette	41 min
May 1, 5:21 PM EDT	Severe Thunderstorm Warning	CTP	Bedford, Blair	84 min
May 1, 5:25 PM EDT	Severe Thunderstorm Warning	CTP	Potter, Tioga	95 min
May 1, 5:35 PM EDT	Severe Thunderstorm Warning	CTP	Cambria, Clearfield, Somerset	25 min
May 1, 5:44 PM EDT	Severe Thunderstorm Warning	CTP	Lycoming	61 min
May 1, 6:06 PM EDT	Severe Thunderstorm Warning	CTP	Blair, Huntingdon	69 min
May 1, 6:24 PM EDT	Severe Thunderstorm Warning	BGM	Bradford	66 min
May 1, 6:31 PM EDT	Severe Thunderstorm Warning	CTP	Mifflin	59 min
May 1, 6:36 PM EDT	Severe Thunderstorm Warning	CTP	Lycoming, Snyder, Union	84 min
May 1, 6:44 PM EDT	Severe Thunderstorm Warning	CTP	Centre, Clinton	46 min
May 1, 6:52 PM EDT	Severe Thunderstorm Warning	CTP	Juniata, Snyder	68 min
May 1, 7:02 PM EDT	Severe Thunderstorm Warning	BGM	Bradford	43 min
May 1, 7:05 PM EDT	Severe Thunderstorm Warning	CTP	Sullivan	55 min
May 1, 7:14 PM EDT	Severe Thunderstorm Warning	BGM	Bradford, Susquehanna	61 min
May 1, 7:14 PM EDT	Severe Thunderstorm Warning	CTP	Columbia, Montour, Northumberland	61 min
May 1, 7:49 PM EDT	Severe Thunderstorm Warning	BGM	Bradford, Lackawanna, Luzerne, Susquehanna, Wyoming	41 min
May 1, 7:59 PM EDT	Severe Thunderstorm Warning	CTP	Snyder	21 min
May 1, 8:29 PM EDT	Severe Thunderstorm Warning	BGM	Lackawanna, Luzerne, Pike, Susquehanna, Wayne, Wyoming	61 min
May 1, 8:29 PM EDT	Severe Thunderstorm Warning	CTP	Bedford, Franklin, Fulton, Huntingdon	46 min
May 1, 8:39 PM EDT	Severe Thunderstorm Warning	CTP	Columbia, Lycoming, Montour, Sullivan	36 min
May 1, 8:51 PM EDT	Severe Thunderstorm Warning	BGM	Lackawanna, Luzerne, Wyoming	39 min
May 1, 9:10 PM EDT	Severe Thunderstorm Warning	CTP	Juniata, Perry	54 min
May 1, 9:24 PM EDT	Severe Thunderstorm Warning	BGM	Lackawanna, Luzerne, Wyoming	51 min
May 1, 9:55 PM EDT	Severe Thunderstorm Warning	CTP	Columbia, Montour, Northumberland, Snyder	80 min
May 5, 4:52 PM EDT	Severe Thunderstorm Warning	PBZ	Fayette	38 min
May 5, 6:51 PM EDT	Severe Thunderstorm Warning	PBZ	Fayette	39 min
May 5, 6:59 PM EDT	Severe Thunderstorm Warning	PBZ	Fayette	46 min
May 5, 7:14 PM EDT	Severe Thunderstorm Warning	CTP	Juniata, Perry	23 min
May 5, 7:53 PM EDT	Severe Thunderstorm Warning	PBZ	Westmoreland	38 min
May 18, 3:40 PM EDT	Severe Thunderstorm Warning	PBZ	Washington	50 min
May 18, 4:07 PM EDT	Severe Thunderstorm Warning	PBZ	Allegheny, Beaver, Washington	38 min
May 18, 5:07 PM EDT	Severe Thunderstorm Warning	PBZ	Beaver, Butler, Lawrence	38 min
May 18, 5:11 PM EDT	Severe Thunderstorm Warning	PBZ	Clarion, Forest	19 min
May 18, 6:06 PM EDT	Severe Thunderstorm Warning	CTP	York	54 min
May 18, 6:19 PM EDT	Severe Thunderstorm Warning	CTP	Elk	41 min
May 18, 8:18 PM EDT	Severe Thunderstorm Warning	CLE	Crawford	42 min
May 19, 5:12 PM EDT	Severe Thunderstorm Warning	PBZ	Fayette, Westmoreland	48 min
May 28, 3:54 PM EDT	Severe Thunderstorm Warning	PBZ	Mercer, Venango	36 min
May 28, 4:01 PM EDT	Severe Thunderstorm Warning	PBZ	Clarion, Forest, Venango	44 min
May 28, 4:12 PM EDT	Severe Thunderstorm Warning	PBZ	Venango	33 min
May 28, 4:45 PM EDT	Severe Thunderstorm Warning	PBZ	Clarion	30 min
May 30, 12:31 PM EDT	Severe Thunderstorm Warning	CTP	Blair, Centre, Huntingdon	44 min
May 30, 12:34 PM EDT	Severe Thunderstorm Warning	CTP	Centre, Clearfield, Clinton	56 min
May 30, 12:39 PM EDT	Severe Thunderstorm Warning	PBZ	Armstrong, Clarion, Jefferson	51 min
May 30, 12:52 PM EDT	Severe Thunderstorm Warning	PBZ	Fayette	28 min
May 30, 1:04 PM EDT	Severe Thunderstorm Warning	PBZ	Jefferson	25 min
May 30, 1:14 PM EDT	Severe Thunderstorm Warning	CTP	Clearfield, Elk	61 min
May 30, 1:22 PM EDT	Severe Thunderstorm Warning	CTP	Somerset	53 min
May 30, 1:25 PM EDT	Severe Thunderstorm Warning	PBZ	Armstrong, Indiana, Jefferson	50 min
May 30, 1:27 PM EDT	Severe Thunderstorm Warning	PBZ	Armstrong, Indiana, Westmoreland	25 min
May 30, 1:45 PM EDT	Severe Thunderstorm Warning	CTP	Huntingdon, Mifflin	60 min
May 30, 2:00 PM EDT	Severe Thunderstorm Warning	PBZ	Jefferson	19 min
May 30, 2:04 PM EDT	Severe Thunderstorm Warning	CTP	Clearfield	41 min
May 30, 2:13 PM EDT	Severe Thunderstorm Warning	CTP	Bedford, Fulton, Huntingdon	62 min
May 30, 2:17 PM EDT	Severe Thunderstorm Warning	PBZ	Indiana	31 min
May 30, 2:42 PM EDT	Severe Thunderstorm Warning	CTP	Centre, Clearfield, Clinton	63 min
May 30, 2:43 PM EDT	Severe Thunderstorm Warning	CTP	Bedford, Fulton, Huntingdon	32 min
May 30, 3:11 PM EDT	Severe Thunderstorm Warning	CTP	Centre, Clinton	34 min
May 30, 3:13 PM EDT	Severe Thunderstorm Warning	CTP	Bedford, Cumberland, Franklin, Fulton, Huntingdon, Perry	77 min
May 31, 2:58 PM EDT	Severe Thunderstorm Warning	PBZ	Beaver	47 min
May 31, 3:44 PM EDT	Severe Thunderstorm Warning	PBZ	Allegheny, Beaver, Butler, Washington	31 min
May 31, 4:06 PM EDT	Severe Thunderstorm Warning	PBZ	Allegheny, Armstrong, Butler, Indiana, Washington, Westmoreland	39 min
May 31, 4:07 PM EDT	Severe Thunderstorm Warning	PBZ	Greene, Washington	38 min
May 31, 7:19 PM EDT	Severe Thunderstorm Warning	BGM	Bradford, Susquehanna	41 min
May 31, 7:59 PM EDT	Severe Thunderstorm Warning	BGM	Susquehanna, Wayne	46 min

By county

Every county with at least one alert. A county page lists each alert that covered it.

12 more counties

Nearby

Alerts in force now Tornadoes on record The radar archive 2016 2018

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. Warning verification from the Mesonet's Cow. Rebuilt daily.