Alert archive / Pennsylvania / 1991
Weather alerts in Pennsylvania, August 1991
22 weather alerts in August 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 August 1991. Tap one for its archive.
- Alerts
- 22
- Warnings
- 22
- Watches
- 0
- Advisories
- 0
- Busiest day
- August 20, 19916 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 |
|---|---|---|---|---|
| Aug 3, 7:04 PM EDT | Severe Thunderstorm Warning | PHI | Chester, Delaware | 26 min |
| Aug 3, 7:25 PM EDT | Severe Thunderstorm Warning | PHI | Philadelphia | 50 min |
| Aug 9, 6:57 AM EDT | Flash Flood Warning | CTP | Dauphin | 63 min |
| Aug 9, 8:15 AM EDT | Flash Flood Warning | CTP | Dauphin | 45 min |
| Aug 9, 9:15 AM EDT | Flash Flood Warning | CTP | Dauphin | 60 min |
| Aug 9, 10:00 AM EDT | Flash Flood Warning | CTP | Dauphin | 60 min |
| Aug 15, 5:13 PM EDT | Severe Thunderstorm Warning | CTP | Lycoming | 47 min |
| Aug 15, 5:40 PM EDT | Severe Thunderstorm Warning | CTP | Montour, Northumberland | 20 min |
| Aug 15, 5:40 PM EDT | Severe Thunderstorm Warning | CTP | Butler | 20 min |
| Aug 19, 3:12 PM EDT | Severe Thunderstorm Warning | PBZ | Allegheny, Armstrong, Butler, Washington, Westmoreland | 63 min |
| Aug 19, 3:30 PM EDT | Severe Thunderstorm Warning | PBZ | Cambria, Indiana | 60 min |
| Aug 19, 4:30 PM EDT | Severe Thunderstorm Warning | PBZ | Cambria, Indiana | 60 min |
| Aug 19, 4:30 PM EDT | Severe Thunderstorm Warning | PBZ | Blair | 60 min |
| Aug 19, 4:37 PM EDT | Severe Thunderstorm Warning | CLE | Crawford | 68 min |
| Aug 20, 11:01 AM EDT | Flash Flood Warning | CTP | York | 119 min |
| Aug 20, 11:16 AM EDT | Severe Thunderstorm Warning | CTP | Lancaster | 59 min |
| Aug 20, 11:17 AM EDT | Severe Thunderstorm Warning | PHI | Chester | 43 min |
| Aug 20, 5:19 PM EDT | Flash Flood Warning | CLE | Lawrence | 116 min |
| Aug 20, 5:23 PM EDT | Flash Flood Warning | PBZ | Beaver | 3 hr |
| Aug 20, 7:22 PM EDT | Severe Thunderstorm Warning | CTP | Adams, York | 68 min |
| Aug 25, 1:36 AM EDT | Flash Flood Warning | PBZ | Blair | 2 hr |
| Aug 31, 2:50 AM EDT | Severe Thunderstorm Warning | CLE | Erie | 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 | 14 |
| Flooding | |
| Flash Flood Warning | 8 |
By county
Every county with at least one alert. A county page lists each alert that covered it.
- Dauphin County4
- Chester County2
- Butler County2
- Cambria County2
- Indiana County2
- Blair County2
- York County2
- Delaware County1
- Philadelphia County1
- Lycoming County1
- Montour County1
- Northumberland County1
- Allegheny County1
- Armstrong County1
- Washington County1
- Westmoreland County1
- Crawford County1
- Lancaster County1
- Lawrence County1
- Beaver County1
- Adams County1
- Erie 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.