Alert archive / Pennsylvania / Chester County / 2018
Weather alerts in Chester County, Pennsylvania, September 2018
28 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
- 28
- Warnings
- 8
- Watches
- 4
- Advisories
- 11
- Busiest day
- September 18, 20186 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 |
|---|---|---|---|
| Aug 31, 8:00 PM EDT | Areal Flood Warning | PHI | 4 hr |
| Sep 3, 3:02 AM EDT | Heat Advisory | PHI | 4 days |
| 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, 8:15 AM EDT | Areal Flood Advisory | PHI | 119 min |
| 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 17, 2:45 PM EDT | Special Weather Statement | PHI | 45 min |
| Sep 18, 1:13 AM EDT | Special Weather Statement | PHI | 62 min |
| Sep 18, 2:09 AM EDT | Special Weather Statement | PHI | 81 min |
| Sep 18, 2:38 AM EDT | Areal Flood Advisory | PHI | 4 hr |
| 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 25, 2:59 PM EDT | Areal Flood Advisory | 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, 6:37 PM EDT | Special Weather Statement | PHI | 53 min |
| Sep 26, 7:06 PM EDT | Severe Thunderstorm Warning | PHI | 54 min |
| Sep 26, 7:31 PM EDT | Areal Flood Advisory | PHI | 106 min |
| Sep 26, 7:53 PM EDT | Severe Thunderstorm Warning | PHI | 52 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, 4:59 AM EDT | River Flood Warning | PHI | 7 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 |
| Sep 28, 8:33 AM EDT | River Flood Warning | PHI | 7 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 | 2 |
| Severe Thunderstorm Watch | 1 |
| Mesoscale Discussion | 1 |
| Special Weather Statement | 4 |
| Flooding | |
| Areal Flood Warning | 3 |
| River Flood Warning | 3 |
| Flash Flood Watch | 1 |
| Flood Watch | 2 |
| Areal Flood Advisory | 9 |
| Heat | |
| Heat Advisory | 1 |
| Fog and smoke | |
| Dense Fog Advisory | 1 |
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.