Alert archive / Pennsylvania / Allegheny County / 2011
Weather alerts in Allegheny County, Pennsylvania, March 2011
44 weather alerts in March 2011, from the National Weather Service and the Storm Prediction Center. An alert counts here when it covered this county.
- Alerts
- 44
- Warnings
- 26
- Watches
- 14
- Advisories
- 2
- Busiest day
- March 23, 201110 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 | Lasted |
|---|---|---|---|
| Feb 28, 10:34 PM EST | River Flood Warning | PBZ | 16 hr |
| Feb 28, 10:34 PM EST | River Flood Warning | PBZ | 8 hr |
| Feb 28, 10:34 PM EST | River Flood Warning | PBZ | 8 hr |
| Feb 28, 10:34 PM EST | River Flood Warning | PBZ | 11 hr |
| Feb 28, 10:34 PM EST | River Flood Warning | PBZ | 15 hr |
| Mar 4, 3:47 AM EST | Flood Watch | PBZ | 54 hr |
| Mar 4, 10:39 PM EST | River Flood Watch | PBZ | 41 hr |
| Mar 4, 10:39 PM EST | River Flood Watch | PBZ | 24 hr |
| Mar 4, 10:39 PM EST | River Flood Watch | PBZ | 13 hr |
| Mar 4, 10:39 PM EST | River Flood Watch | PBZ | 13 hr |
| Mar 4, 10:39 PM EST | River Flood Watch | PBZ | 37 hr |
| Mar 6, 10:05 AM EST | River Flood Warning | PBZ | 18 hr |
| Mar 6, 10:05 AM EST | River Flood Warning | PBZ | 18 hr |
| Mar 6, 10:05 AM EST | River Flood Warning | PBZ | 19 hr |
| Mar 6, 10:05 AM EST | River Flood Warning | PBZ | 23 hr |
| Mar 6, 3:24 PM EST | River Flood Warning | PBZ | 17 hr |
| Mar 7, 12:08 PM EST | River Flood Advisory | PBZ | 71 hr |
| Mar 8, 2:21 PM EST | Flood Watch | PBZ | 52 hr |
| Mar 8, 9:53 PM EST | River Flood Watch | PBZ | 38 hr |
| Mar 8, 9:53 PM EST | River Flood Watch | PBZ | 38 hr |
| Mar 8, 9:53 PM EST | River Flood Watch | PBZ | 38 hr |
| Mar 8, 9:53 PM EST | River Flood Watch | PBZ | 13 hr |
| Mar 9, 2:41 PM EST | Winter Storm Watch | PBZ | 25 hr |
| Mar 9, 9:56 PM EST | River Flood Watch | PBZ | 14 hr |
| Mar 10, 11:18 AM EST | River Flood Warning | PBZ | 49 hr |
| Mar 10, 11:18 AM EST | River Flood Warning | PBZ | 44 hr |
| Mar 10, 11:18 AM EST | River Flood Warning | PBZ | 11 hr |
| Mar 10, 11:18 AM EST | River Flood Warning | PBZ | 11 hr |
| Mar 10, 12:48 PM EST | Areal Flood Warning | PBZ | 22 hr |
| Mar 10, 3:51 PM EST | Winter Storm Warning | PBZ | 26 hr |
| Mar 11, 10:03 AM EST | River Flood Warning | PBZ | 21 hr |
| Mar 11, 10:47 AM EST | Areal Flood Warning | PBZ | 11 hr |
| Mar 12, 3:28 PM EST | River Flood Advisory | PBZ | 7 days |
| Mar 21, 4:03 AM EDT | Special Weather Statement | PBZ | 57 min |
| Mar 23, 1:13 PM EDT | Tornado Watch | SPC | 7 hr |
| Mar 23, 3:36 PM EDT | Severe Thunderstorm Warning | PBZ | 54 min |
| Mar 23, 3:54 PM EDT | Mesoscale Discussion | SPC | 96 min |
| Mar 23, 4:18 PM EDT | Severe Thunderstorm Warning | PBZ | 27 min |
| Mar 23, 4:34 PM EDT | Severe Thunderstorm Warning | PBZ | 56 min |
| Mar 23, 4:42 PM EDT | Severe Thunderstorm Warning | PBZ | 63 min |
| Mar 23, 4:55 PM EDT | Severe Thunderstorm Warning | PBZ | 65 min |
| Mar 23, 5:14 PM EDT | Severe Thunderstorm Warning | PBZ | 47 min |
| Mar 23, 5:22 PM EDT | Severe Thunderstorm Warning | PBZ | 42 min |
| Mar 23, 5:26 PM EDT | Severe Thunderstorm Warning | PBZ | 39 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 |
| Tornado Watch | 1 |
| Mesoscale Discussion | 1 |
| Special Weather Statement | 1 |
| Flooding | |
| Areal Flood Warning | 2 |
| River Flood Warning | 15 |
| Flood Watch | 2 |
| River Flood Watch | 10 |
| River Flood Advisory | 2 |
| Winter | |
| Winter Storm Warning | 1 |
| Winter Storm Watch | 1 |
Nearby
Alerts in force nowTornadoes on recordForecastThe radar archive20102012
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.