Alert archive / Virginia / Loudoun County / 2011
Weather alerts in Loudoun County, Virginia, September 2011
17 weather alerts in September 2011, from the National Weather Service and the Storm Prediction Center. An alert counts here when it covered this county.
- Alerts
- 17
- Warnings
- 7
- Watches
- 2
- Advisories
- 0
- Busiest day
- September 14, 20113 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 |
|---|---|---|---|
| Sep 3, 9:44 AM EDT | Severe Thunderstorm Warning | LWX | 46 min |
| Sep 3, 9:51 AM EDT | Special Weather Statement | LWX | 24 min |
| Sep 6, 12:26 PM EDT | River Flood Watch | LWX | 29 hr |
| Sep 6, 12:26 PM EDT | River Flood Watch | LWX | 29 hr |
| Sep 8, 2:31 PM EDT | Flash Flood Warning | LWX | 5 hr |
| Sep 8, 7:01 PM EDT | Flash Flood Warning | LWX | 4 hr |
| Sep 8, 9:50 PM EDT | Areal Flood Warning | LWX | 4 hr |
| Sep 9, 1:47 AM EDT | Areal Flood Warning | LWX | 8 hr |
| Sep 11, 2:44 PM EDT | Special Weather Statement | LWX | 16 min |
| Sep 11, 6:38 PM EDT | Mesoscale Discussion | SPC | 97 min |
| Sep 14, 3:22 PM EDT | Mesoscale Discussion | SPC | 53 min |
| Sep 14, 5:34 PM EDT | Severe Thunderstorm Warning | LWX | 41 min |
| Sep 14, 6:37 PM EDT | Severe Thunderstorm Warning | LWX | 38 min |
| Sep 14, 10:19 PM EDT | Special Weather Statement | LWX | 41 min |
| Sep 22, 5:18 PM EDT | Special Weather Statement | LWX | 27 min |
| Sep 22, 6:00 PM EDT | Special Weather Statement | LWX | 30 min |
| Sep 27, 3:57 PM EDT | Special Weather Statement | LWX | 33 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 | 3 |
| Mesoscale Discussion | 2 |
| Special Weather Statement | 6 |
| Flooding | |
| Areal Flood Warning | 2 |
| Flash Flood Warning | 2 |
| River Flood Watch | 2 |
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.