Alert archive / Pennsylvania / Delaware County / 2018
Weather alerts in Delaware County, Pennsylvania, September 2018
34 weather alerts in September 2018, from the National Weather Service and the Storm Prediction Center. An alert counts here when it covered this county.
- Alerts
- 34
- Warnings
- 9
- Watches
- 6
- Advisories
- 14
- Busiest day
- September 8, 20185 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, 3:02 AM EDT | Heat Advisory | PHI | 4 days |
| Sep 6, 7:51 PM EDT | Special Weather Statement | PHI | 39 min |
| Sep 7, 6:41 PM EDT | Flash Flood Warning | PHI | 4 hr |
| Sep 7, 10:41 PM EDT | Areal Flood Warning | PHI | 8 hr |
| Sep 8, 3:34 AM EDT | Flood Watch | PHI | 60 hr |
| Sep 8, 4:29 AM EDT | Areal Flood Advisory | PHI | 4 hr |
| Sep 8, 5:31 AM EDT | Coastal Flood Advisory | PHI | 24 hr |
| Sep 8, 8:15 AM EDT | Areal Flood Advisory | PHI | 119 min |
| Sep 9, 12:05 AM EDT | Coastal Flood Warning | PHI | 54 hr |
| Sep 9, 5:04 AM EDT | Coastal Flood Watch | PHI | 11 hr |
| Sep 10, 5:02 AM EDT | Coastal Flood Watch | PHI | 11 hr |
| Sep 10, 4:08 PM EDT | Coastal Flood Advisory | PHI | 13 hr |
| Sep 11, 5:48 AM EDT | Coastal Flood Advisory | PHI | 14 hr |
| Sep 12, 2:05 AM EDT | Dense Fog Advisory | PHI | 8 hr |
| Sep 12, 4:36 PM EDT | Areal Flood Advisory | PHI | 3 hr |
| Sep 18, 2:09 AM EDT | Special Weather Statement | PHI | 81 min |
| Sep 18, 4:13 AM EDT | Special Weather Statement | PHI | 92 min |
| Sep 18, 9:27 AM EDT | Flash Flood Watch | PHI | 6 hr |
| Sep 18, 10:57 AM EDT | Areal Flood Advisory | PHI | 3 hr |
| Sep 18, 12:36 PM EDT | Areal Flood Advisory | PHI | 3 hr |
| Sep 24, 4:27 AM EDT | Coastal Flood Advisory | PHI | 42 hr |
| Sep 25, 2:59 PM EDT | Areal Flood Advisory | PHI | 4 hr |
| Sep 25, 4:03 PM EDT | Areal Flood Advisory | PHI | 3 hr |
| Sep 25, 4:19 PM EDT | Flash Flood Warning | PHI | 4 hr |
| Sep 25, 5:35 PM EDT | Flash Flood Warning | PHI | 4 hr |
| Sep 26, 3:40 PM EDT | Mesoscale Discussion | SPC | 3 hr |
| Sep 26, 5:02 PM EDT | Severe Thunderstorm Watch | SPC | 4 hr |
| Sep 26, 7:06 PM EDT | Severe Thunderstorm Warning | PHI | 54 min |
| Sep 26, 8:03 PM EDT | Special Weather Statement | PHI | 27 min |
| Sep 27, 3:24 AM EDT | Flood Watch | PHI | 27 hr |
| Sep 28, 1:44 AM EDT | Areal Flood Advisory | PHI | 5 hr |
| Sep 28, 3:13 AM EDT | Areal Flood Warning | PHI | 4 hr |
| Sep 28, 7:33 AM EDT | Areal Flood Warning | PHI | 5 hr |
| Sep 28, 8:28 AM EDT | River Flood Warning | PHI | 13 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 Warning | 1 |
| Severe Thunderstorm Watch | 1 |
| Mesoscale Discussion | 1 |
| Special Weather Statement | 4 |
| Flooding | |
| Areal Flood Warning | 3 |
| Flash Flood Warning | 3 |
| River Flood Warning | 1 |
| Flash Flood Watch | 1 |
| Flood Watch | 2 |
| Areal Flood Advisory | 8 |
| Heat | |
| Heat Advisory | 1 |
| Fog and smoke | |
| Dense Fog Advisory | 1 |
| Coast and beach | |
| Coastal Flood Warning | 1 |
| Coastal Flood Watch | 2 |
| Coastal Flood Advisory | 4 |
Nearby
Alerts in force nowTornadoes on recordForecastThe radar archive20172019
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.