Alert archive / Pennsylvania / 1991
Weather alerts in Pennsylvania, September 1991
9 weather alerts in September 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 September 1991. Tap one for its archive.
- Alerts
- 9
- Warnings
- 9
- Watches
- 0
- Advisories
- 0
- Busiest day
- September 18, 19914 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 |
|---|---|---|---|---|
| Sep 10, 5:35 PM EDT | Severe Thunderstorm Warning | PBZ | Allegheny, Beaver | 55 min |
| Sep 16, 5:34 PM EDT | Severe Thunderstorm Warning | CTP | Dauphin, Perry | 56 min |
| Sep 18, 2:50 PM EDT | Severe Thunderstorm Warning | PBZ | Clearfield | 55 min |
| Sep 18, 5:00 PM EDT | Severe Thunderstorm Warning | CTP | Centre | 60 min |
| Sep 18, 6:58 PM EDT | Severe Thunderstorm Warning | CTP | Northumberland, Union | 62 min |
| Sep 18, 7:25 PM EDT | Severe Thunderstorm Warning | CTP | Adams, York | 65 min |
| Sep 18, 8:28 PM EDT | Severe Thunderstorm Warning | CTP | York | 62 min |
| Sep 19, 12:14 AM EDT | Flash Flood Warning | CTP | Adams | 31 min |
| Sep 19, 12:14 AM EDT | Severe Thunderstorm Warning | CTP | Adams | 31 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 | 8 |
| Flooding | |
| Flash Flood Warning | 1 |
By county
Every county with at least one alert. A county page lists each alert that covered it.
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.