Weather alerts in Pennsylvania, May 1991

64 weather alerts in May 1991, 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 May 1991. Tap one for its archive.

Alerts: 64
Warnings: 64
Watches: 0
Advisories: 0
Busiest day: May 6, 199122 alerts

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, 2:05 PM EDT	Severe Thunderstorm Warning	CLE	Mercer	55 min
May 1, 2:27 PM EDT	Severe Thunderstorm Warning	CLE	Lawrence	63 min
May 1, 2:41 PM EDT	Severe Thunderstorm Warning	PBZ	Washington	64 min
May 1, 2:41 PM EDT	Severe Thunderstorm Warning	PBZ	Beaver	64 min
May 1, 2:41 PM EDT	Severe Thunderstorm Warning	PBZ	Allegheny	64 min
May 1, 2:58 PM EDT	Severe Thunderstorm Warning	PBZ	Butler	62 min
May 1, 4:20 PM EDT	Severe Thunderstorm Warning	PBZ	Cambria, Clearfield, Somerset	55 min
May 1, 5:09 PM EDT	Severe Thunderstorm Warning	CTP	Clinton	66 min
May 1, 5:18 PM EDT	Severe Thunderstorm Warning	PBZ	Bedford, Blair	57 min
May 1, 7:06 PM EDT	Severe Thunderstorm Warning	BGM	Susquehanna	69 min
May 1, 7:27 PM EDT	Severe Thunderstorm Warning	BGM	Wayne	63 min
May 6, 1:11 PM EDT	Severe Thunderstorm Warning	PBZ	Washington	64 min
May 6, 1:20 PM EDT	Severe Thunderstorm Warning	PBZ	Greene	55 min
May 6, 1:44 PM EDT	Severe Thunderstorm Warning	PBZ	Westmoreland	61 min
May 6, 2:02 PM EDT	Severe Thunderstorm Warning	PBZ	Allegheny	58 min
May 6, 2:18 PM EDT	Tornado Warning	PBZ	Armstrong, Westmoreland	57 min
May 6, 2:34 PM EDT	Severe Thunderstorm Warning	PBZ	Cambria, Somerset	56 min
May 6, 2:34 PM EDT	Severe Thunderstorm Warning	PBZ	Indiana	56 min
May 6, 2:43 PM EDT	Severe Thunderstorm Warning	PBZ	Clearfield, Jefferson	62 min
May 6, 3:05 PM EDT	Severe Thunderstorm Warning	PBZ	Bedford	55 min
May 6, 3:27 PM EDT	Severe Thunderstorm Warning	PBZ	Blair	63 min
May 6, 3:39 PM EDT	Severe Thunderstorm Warning	CTP	Franklin, Fulton, Huntingdon	51 min
May 6, 3:57 PM EDT	Severe Thunderstorm Warning	CTP	Centre	48 min
May 6, 4:13 PM EDT	Severe Thunderstorm Warning	CTP	Juniata, Perry	62 min
May 6, 4:13 PM EDT	Severe Thunderstorm Warning	CTP	Adams, Cumberland	62 min
May 6, 4:31 PM EDT	Severe Thunderstorm Warning	CTP	Clinton	59 min
May 6, 4:46 PM EDT	Severe Thunderstorm Warning	CTP	Dauphin, York	59 min
May 6, 5:14 PM EDT	Severe Thunderstorm Warning	CTP	Lancaster, Lebanon	46 min
May 6, 5:43 PM EDT	Severe Thunderstorm Warning	PHI	Chester	32 min
May 6, 5:49 PM EDT	Severe Thunderstorm Warning	CTP	Schuylkill	56 min
May 6, 6:06 PM EDT	Severe Thunderstorm Warning	PHI	Montgomery	54 min
May 6, 6:26 PM EDT	Severe Thunderstorm Warning	BGM	Susquehanna	64 min
May 6, 6:48 PM EDT	Severe Thunderstorm Warning	PHI	Philadelphia	27 min
May 13, 2:35 PM EDT	Flash Flood Warning	PBZ	Clearfield	115 min
May 13, 2:51 PM EDT	Flash Flood Warning	CLE	Cameron, Elk	3 hr
May 13, 3:17 PM EDT	Severe Thunderstorm Warning	CTP	Adams	58 min
May 13, 3:35 PM EDT	Flash Flood Warning	PBZ	Allegheny	115 min
May 13, 4:10 PM EDT	Severe Thunderstorm Warning	CTP	Northumberland, Union	65 min
May 13, 4:10 PM EDT	Severe Thunderstorm Warning	CTP	Montour	65 min
May 13, 4:24 PM EDT	Flash Flood Warning	CLE	Lawrence	2 hr
May 13, 4:28 PM EDT	Flash Flood Warning	PBZ	Clearfield	3 hr
May 13, 4:59 PM EDT	Severe Thunderstorm Warning	PBZ	Clarion, Jefferson	61 min
May 13, 5:05 PM EDT	Severe Thunderstorm Warning	CTP	Schuylkill	40 min
May 13, 5:43 PM EDT	Flash Flood Warning	PBZ	Clarion, Jefferson	2 hr
May 13, 11:39 PM EDT	Severe Thunderstorm Warning	PBZ	Butler	66 min
May 14, 11:21 PM EDT	Severe Thunderstorm Warning	CTP	Berks	69 min
May 17, 3:10 PM EDT	Severe Thunderstorm Warning	PBZ	Butler	65 min
May 24, 3:33 PM EDT	Severe Thunderstorm Warning	CLE	Crawford, Erie	57 min
May 25, 2:31 PM EDT	Severe Thunderstorm Warning	CLE	Erie	3 hr
May 25, 4:31 PM EDT	Severe Thunderstorm Warning	CLE	Erie	59 min
May 25, 5:28 PM EDT	Severe Thunderstorm Warning	CLE	Warren	62 min
May 29, 2:40 PM EDT	Severe Thunderstorm Warning	CTP	Lycoming	65 min
May 29, 3:17 PM EDT	Severe Thunderstorm Warning	CTP	Clinton	43 min
May 29, 4:19 PM EDT	Severe Thunderstorm Warning	CTP	Clinton	56 min
May 29, 4:39 PM EDT	Severe Thunderstorm Warning	CTP	Juniata, Perry, Snyder	66 min
May 29, 5:14 PM EDT	Severe Thunderstorm Warning	CTP	Berks	31 min
May 30, 1:38 PM EDT	Severe Thunderstorm Warning	PBZ	Armstrong, Indiana	67 min
May 30, 3:05 PM EDT	Severe Thunderstorm Warning	PBZ	Cambria	55 min
May 30, 3:21 PM EDT	Severe Thunderstorm Warning	CTP	Lebanon	69 min
May 30, 4:17 PM EDT	Severe Thunderstorm Warning	CTP	Berks	28 min
May 30, 5:29 PM EDT	Severe Thunderstorm Warning	PHI	Chester, Delaware	46 min
May 30, 5:55 PM EDT	Severe Thunderstorm Warning	PHI	Philadelphia	35 min
May 31, 12:55 AM EDT	Flash Flood Warning	PBZ	Washington	3 hr
May 31, 2:02 PM EDT	Severe Thunderstorm Warning	CTP	Lehigh, Northampton	58 min

By product

Every kind of product issued here, grouped by hazard. Each opens the same place narrowed to that product.

Product	Alerts
Severe storms
Severe Thunderstorm Warning	56
Tornado Warning	1
Flooding
Flash Flood Warning	7

By county

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

10 more counties

Nearby

Alerts in force now Tornadoes on record The radar archive 1990 1992

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.