Alert archive / Pennsylvania / Delaware County / 2011
Weather alerts in Delaware County, Pennsylvania, May 2011
31 weather alerts in May 2011, from the National Weather Service and the Storm Prediction Center. An alert counts here when it covered this county.
- Alerts
- 31
- Warnings
- 1
- Watches
- 4
- Advisories
- 10
- Busiest day
- May 16, 20116 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 |
|---|---|---|---|
| May 7, 4:29 PM EDT | Special Weather Statement | PHI | 91 min |
| May 7, 5:20 PM EDT | Special Weather Statement | PHI | 85 min |
| May 12, 7:21 PM EDT | Coastal Flood Statement | PHI | 6 hr |
| May 12, 9:37 PM EDT | Coastal Flood Advisory | PHI | 2 hr |
| May 13, 3:15 PM EDT | Coastal Flood Advisory | PHI | 15 hr |
| May 14, 3:48 AM EDT | Coastal Flood Advisory | PHI | 61 hr |
| May 14, 11:46 PM EDT | Special Weather Statement | PHI | 89 min |
| May 15, 2:55 PM EDT | Special Weather Statement | PHI | 65 min |
| May 15, 4:31 PM EDT | Special Weather Statement | PHI | 59 min |
| May 15, 7:28 PM EDT | Special Weather Statement | PHI | 62 min |
| May 15, 9:04 PM EDT | Special Weather Statement | PHI | 56 min |
| May 15, 9:17 PM EDT | Special Weather Statement | PHI | 58 min |
| May 15, 10:12 PM EDT | Special Weather Statement | PHI | 63 min |
| May 15, 10:16 PM EDT | Areal Flood Advisory | PHI | 3 hr |
| May 16, 3:50 PM EDT | Flood Watch | PHI | 60 hr |
| May 16, 4:37 PM EDT | Coastal Flood Advisory | PHI | 17 hr |
| May 16, 8:45 PM EDT | Coastal Flood Advisory | PHI | 7 hr |
| May 17, 3:45 AM EDT | Coastal Flood Watch | PHI | 12 hr |
| May 17, 3:57 PM EDT | Coastal Flood Advisory | PHI | 18 hr |
| May 18, 4:00 AM EDT | Coastal Flood Advisory | PHI | 25 hr |
| May 18, 3:08 PM EDT | Mesoscale Discussion | SPC | 67 min |
| May 19, 12:20 PM EDT | Severe Thunderstorm Watch | SPC | 8 hr |
| May 19, 2:17 PM EDT | Mesoscale Discussion | SPC | 58 min |
| May 19, 3:01 PM EDT | Areal Flood Advisory | PHI | 3 hr |
| May 19, 3:15 PM EDT | Special Weather Statement | PHI | 60 min |
| May 19, 3:52 PM EDT | Coastal Flood Statement | PHI | 8 hr |
| May 19, 5:02 PM EDT | Mesoscale Discussion | SPC | 58 min |
| May 23, 5:35 PM EDT | Special Weather Statement | PHI | 55 min |
| May 29, 3:21 PM EDT | Excessive Heat Watch | PHI | 24 hr |
| May 29, 3:21 PM EDT | Heat Advisory | PHI | 29 hr |
| May 31, 1:27 PM EDT | Excessive Heat Warning | PHI | 31 hr |
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 Watch | 1 |
| Mesoscale Discussion | 3 |
| Special Weather Statement | 11 |
| Flooding | |
| Flood Watch | 1 |
| Areal Flood Advisory | 2 |
| Heat | |
| Excessive Heat Warning | 1 |
| Excessive Heat Watch | 1 |
| Heat Advisory | 1 |
| Coast and beach | |
| Coastal Flood Watch | 1 |
| Coastal Flood Advisory | 7 |
| Coastal Flood Statement | 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. Rebuilt daily.