Alert archive / Pennsylvania / Delaware County / 2011
Weather alerts in Delaware County, Pennsylvania, December 2011
12 weather alerts in December 2011, from the National Weather Service and the Storm Prediction Center. An alert counts here when it covered this county.
- Alerts
- 12
- Warnings
- 4
- Watches
- 2
- Advisories
- 3
- Busiest day
- December 8, 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 |
|---|---|---|---|
| Dec 4, 10:44 PM EST | Dense Fog Advisory | PHI | 11 hr |
| Dec 6, 3:10 PM EST | Flood Watch | PHI | 36 hr |
| Dec 7, 6:51 AM EST | Areal Flood Advisory | PHI | 4 hr |
| Dec 7, 4:37 PM EST | Areal Flood Advisory | PHI | 4 hr |
| Dec 7, 8:04 PM EST | Areal Flood Warning | PHI | 18 hr |
| Dec 7, 9:41 PM EST | River Flood Warning | PHI | 5 hr |
| Dec 8, 2:51 AM EST | River Flood Warning | PHI | 13 hr |
| Dec 21, 9:54 PM EST | Special Weather Statement | PHI | 51 min |
| Dec 21, 10:34 PM EST | Special Weather Statement | PHI | 41 min |
| Dec 26, 3:13 PM EST | Flood Watch | PHI | 30 hr |
| Dec 27, 1:20 PM EST | Coastal Flood Statement | PHI | 4 hr |
| Dec 27, 7:55 PM EST | Areal Flood Warning | PHI | 94 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 | |
| Special Weather Statement | 2 |
| Flooding | |
| Areal Flood Warning | 2 |
| River Flood Warning | 2 |
| Flood Watch | 2 |
| Areal Flood Advisory | 2 |
| Fog and smoke | |
| Dense Fog Advisory | 1 |
| Coast and beach | |
| Coastal Flood Statement | 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.