Alert archive / Pennsylvania / 1991
Weather alerts in Pennsylvania, April 1991
20 weather alerts in April 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 April 1991. Tap one for its archive.
- Alerts
- 20
- Warnings
- 20
- Watches
- 0
- Advisories
- 0
- Busiest day
- April 10, 199111 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 |
|---|---|---|---|---|
| Apr 8, 3:31 PM EDT | Severe Thunderstorm Warning | PBZ | Beaver | 74 min |
| Apr 9, 7:29 PM EDT | Severe Thunderstorm Warning | CLE | Crawford, Erie | 61 min |
| Apr 9, 7:31 PM EDT | Severe Thunderstorm Warning | PBZ | Allegheny, Beaver, Washington | 59 min |
| Apr 9, 7:31 PM EDT | Severe Thunderstorm Warning | PBZ | Greene | 59 min |
| Apr 9, 7:49 PM EDT | Severe Thunderstorm Warning | CLE | Lawrence | 51 min |
| Apr 9, 7:54 PM EDT | Severe Thunderstorm Warning | PBZ | Fayette, Westmoreland | 81 min |
| Apr 9, 7:54 PM EDT | Severe Thunderstorm Warning | PBZ | Armstrong, Butler | 81 min |
| Apr 9, 8:13 PM EDT | Flash Flood Warning | PBZ | Allegheny, Beaver, Greene, Washington | 3 hr |
| Apr 9, 8:36 PM EDT | Severe Thunderstorm Warning | PBZ | Cambria, Indiana, Somerset | 54 min |
| Apr 9, 8:46 PM EDT | Tornado Warning | PBZ | Fayette | 119 min |
| Apr 9, 9:10 PM EDT | Flash Flood Warning | PBZ | Armstrong, Butler | 2 hr |
| Apr 9, 9:24 PM EDT | Severe Thunderstorm Warning | PBZ | Bedford, Blair | 66 min |
| Apr 9, 9:24 PM EDT | Severe Thunderstorm Warning | PBZ | Clearfield, Jefferson | 66 min |
| Apr 9, 9:36 PM EDT | Tornado Warning | PBZ | Bedford | 54 min |
| Apr 9, 10:20 PM EDT | Severe Thunderstorm Warning | CTP | Cumberland, Perry | 25 min |
| Apr 9, 10:20 PM EDT | Severe Thunderstorm Warning | CTP | York | 25 min |
| Apr 9, 10:45 PM EDT | Severe Thunderstorm Warning | CTP | Dauphin, Lancaster, York | 60 min |
| Apr 9, 10:45 PM EDT | Severe Thunderstorm Warning | CTP | Lebanon | 60 min |
| Apr 28, 8:20 PM EDT | Flash Flood Warning | CLE | McKean | 3 hr |
| Apr 29, 12:20 AM EDT | Severe Thunderstorm Warning | CLE | Crawford | 55 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 | 15 |
| Tornado Warning | 2 |
| Flooding | |
| Flash Flood Warning | 3 |
By county
Every county with at least one alert. A county page lists each alert that covered it.
- Beaver County3
- Crawford County2
- Allegheny County2
- Washington County2
- Greene County2
- Fayette County2
- Armstrong County2
- Butler County2
- Bedford County2
- York County2
- Erie County1
- Lawrence County1
- Westmoreland County1
- Cambria County1
- Indiana County1
- Somerset County1
- Blair County1
- Clearfield County1
- Jefferson County1
- Cumberland County1
- Perry County1
- Dauphin County1
- Lancaster County1
- Lebanon County1
- McKean County1
Nearby
Alerts in force nowTornadoes on recordThe radar archive19901992
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.