Alert archive / Pennsylvania / Delaware County / 2023
Weather alerts in Delaware County, Pennsylvania, September 2023
23 weather alerts in September 2023, from the National Weather Service and the Storm Prediction Center. An alert counts here when it covered this county.
- Alerts
- 23
- Warnings
- 4
- Watches
- 3
- Advisories
- 6
- Busiest day
- September 9, 20237 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 4, 2:41 PM EDT | Heat Advisory | PHI | 3 days |
| Sep 7, 11:58 AM EDT | Mesoscale Discussion | SPC | 3 hr |
| Sep 7, 4:48 PM EDT | Mesoscale Discussion | SPC | 87 min |
| Sep 7, 6:18 PM EDT | Severe Thunderstorm Warning | PHI | 42 min |
| Sep 7, 7:51 PM EDT | Mesoscale Discussion | SPC | 84 min |
| Sep 8, 2:46 PM EDT | Mesoscale Discussion | SPC | 119 min |
| Sep 8, 3:11 PM EDT | Severe Thunderstorm Watch | SPC | 8 hr |
| Sep 8, 4:52 PM EDT | Mesoscale Discussion | SPC | 83 min |
| Sep 8, 6:34 PM EDT | Mesoscale Discussion | SPC | 86 min |
| Sep 8, 10:17 PM EDT | Severe Thunderstorm Warning | PHI | 43 min |
| Sep 8, 10:31 PM EDT | Mesoscale Discussion | SPC | 59 min |
| Sep 8, 10:58 PM EDT | Severe Thunderstorm Warning | PHI | 47 min |
| Sep 9, 2:08 PM EDT | Mesoscale Discussion | SPC | 3 hr |
| Sep 9, 3:34 PM EDT | Severe Thunderstorm Warning | PHI | 56 min |
| Sep 9, 4:23 PM EDT | Severe Thunderstorm Watch | SPC | 5 hr |
| Sep 9, 6:06 PM EDT | Mesoscale Discussion | SPC | 114 min |
| Sep 9, 8:08 PM EDT | Mesoscale Discussion | SPC | 2 hr |
| Sep 10, 10:00 PM EDT | Areal Flood Advisory | PHI | 3 hr |
| Sep 12, 2:39 PM EDT | Flood Watch | PHI | 16 hr |
| Sep 22, 4:01 AM EDT | Coastal Flood Advisory | PHI | 41 hr |
| Sep 25, 3:30 PM EDT | Coastal Flood Advisory | PHI | 36 hr |
| Sep 27, 3:06 AM EDT | Coastal Flood Advisory | PHI | 25 hr |
| Sep 28, 4:26 AM EDT | Coastal Flood Advisory | PHI | 3 days |
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 | 4 |
| Severe Thunderstorm Watch | 2 |
| Mesoscale Discussion | 10 |
| Flooding | |
| Flood Watch | 1 |
| Areal Flood Advisory | 1 |
| Heat | |
| Heat Advisory | 1 |
| Coast and beach | |
| Coastal Flood Advisory | 4 |
Nearby
Alerts in force nowTornadoes on recordForecastThe radar archive20222024
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.