Alert archive / Pennsylvania / Chester County
Weather alerts in Chester County, Pennsylvania, 2004
93 weather alerts in 2004, from the National Weather Service and the Storm Prediction Center. An alert counts here when it covered this county.
Chester County and its neighbors
Each county as a circle sized by its count in 2004. Tap one for its archive.
- Alerts
- 93
- Warnings
- 37
- Watches
- 12
- Advisories
- 0
- Busiest month
- June25 alerts
- Busiest day
- September 28, 20046 alerts
Over time
By month
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 |
|---|---|---|---|
| Jan 14, 6:43 PM EST | Mesoscale Discussion | SPC | 6 hr |
| Jan 27, 5:28 PM EST | Mesoscale Discussion | SPC | 5 hr |
| Feb 6, 12:04 AM EST | Mesoscale Discussion | SPC | 6 hr |
| Feb 6, 8:03 AM EST | Mesoscale Discussion | SPC | 5 hr |
| Mar 18, 6:08 PM EST | Mesoscale Discussion | SPC | 5 hr |
| May 5, 1:48 PM EDT | Mesoscale Discussion | SPC | 2 hr |
| May 7, 10:29 AM EDT | Mesoscale Discussion | SPC | 91 min |
| May 7, 1:24 PM EDT | Mesoscale Discussion | SPC | 96 min |
| May 7, 1:40 PM EDT | Severe Thunderstorm Watch | SPC | 3 hr |
| May 7, 1:58 PM EDT | Severe Thunderstorm Warning | PHI | 77 min |
| May 9, 7:14 PM EDT | Severe Thunderstorm Warning | PHI | 61 min |
| May 9, 7:17 PM EDT | Severe Thunderstorm Warning | PHI | 58 min |
| May 9, 8:08 PM EDT | Mesoscale Discussion | SPC | 2 hr |
| May 15, 6:05 PM EDT | Mesoscale Discussion | SPC | 85 min |
| May 18, 2:54 PM EDT | Mesoscale Discussion | SPC | 96 min |
| May 18, 7:49 PM EDT | Mesoscale Discussion | SPC | 2 hr |
| May 18, 8:32 PM EDT | Severe Thunderstorm Warning | PHI | 43 min |
| May 19, 2:52 AM EDT | Mesoscale Discussion | SPC | 3 hr |
| May 21, 6:53 PM EDT | Mesoscale Discussion | SPC | 97 min |
| May 24, 10:03 AM EDT | Mesoscale Discussion | SPC | 117 min |
| May 24, 4:55 PM EDT | Severe Thunderstorm Watch | SPC | 4 hr |
| May 24, 5:43 PM EDT | Mesoscale Discussion | SPC | 47 min |
| May 24, 7:25 PM EDT | Mesoscale Discussion | SPC | 95 min |
| May 25, 6:09 PM EDT | Mesoscale Discussion | SPC | 2 hr |
| May 26, 5:15 PM EDT | Mesoscale Discussion | SPC | 2 hr |
| Jun 1, 11:11 AM EDT | Mesoscale Discussion | SPC | 64 min |
| Jun 1, 12:25 PM EDT | Severe Thunderstorm Watch | SPC | 6 hr |
| Jun 1, 4:22 PM EDT | Mesoscale Discussion | SPC | 53 min |
| Jun 10, 1:31 PM EDT | Mesoscale Discussion | SPC | 119 min |
| Jun 10, 2:55 PM EDT | Severe Thunderstorm Watch | SPC | 5 hr |
| Jun 10, 4:56 PM EDT | Mesoscale Discussion | SPC | 94 min |
| Jun 14, 4:45 PM EDT | Mesoscale Discussion | SPC | 2 hr |
| Jun 14, 7:46 PM EDT | Severe Thunderstorm Warning | PHI | 74 min |
| Jun 15, 3:55 PM EDT | Mesoscale Discussion | SPC | 95 min |
| Jun 15, 6:15 PM EDT | Severe Thunderstorm Warning | PHI | 45 min |
| Jun 15, 6:25 PM EDT | Tornado Warning | PHI | 35 min |
| Jun 17, 2:35 PM EDT | Severe Thunderstorm Watch | SPC | 6 hr |
| Jun 17, 2:37 PM EDT | Severe Thunderstorm Warning | PHI | 53 min |
| Jun 17, 2:40 PM EDT | Severe Thunderstorm Warning | PHI | 50 min |
| Jun 17, 4:22 PM EDT | Mesoscale Discussion | SPC | 83 min |
| Jun 17, 7:37 PM EDT | Mesoscale Discussion | SPC | 53 min |
| Jun 17, 8:12 PM EDT | Severe Thunderstorm Warning | PHI | 33 min |
| Jun 17, 8:20 PM EDT | Flash Flood Warning | PHI | 93 days |
| Jun 22, 12:08 PM EDT | Mesoscale Discussion | SPC | 97 min |
| Jun 22, 4:16 PM EDT | Mesoscale Discussion | SPC | 89 min |
| Jun 22, 5:33 PM EDT | Severe Thunderstorm Warning | PHI | 57 min |
| Jun 25, 1:08 PM EDT | Mesoscale Discussion | SPC | 2 hr |
| Jun 25, 1:45 PM EDT | Severe Thunderstorm Watch | SPC | 7 hr |
| Jun 25, 4:14 PM EDT | Mesoscale Discussion | SPC | 2 hr |
| Jun 25, 7:25 PM EDT | Flash Flood Warning | PHI | 85 days |
| Jul 5, 8:06 PM EDT | Severe Thunderstorm Warning | PHI | 39 min |
| Jul 7, 1:15 PM EDT | Severe Thunderstorm Watch | SPC | 5 hr |
| Jul 7, 2:35 PM EDT | Mesoscale Discussion | SPC | 55 min |
| Jul 7, 7:43 PM EDT | Flash Flood Warning | PHI | 73 days |
| Jul 12, 7:50 AM EDT | Flash Flood Warning | PHI | 68 days |
| Jul 12, 9:31 AM EDT | Flash Flood Warning | PHI | 78 days |
| Jul 12, 6:51 PM EDT | Flash Flood Warning | PHI | 78 days |
| Jul 14, 1:15 PM EDT | Severe Thunderstorm Watch | SPC | 6 hr |
| Jul 14, 3:05 PM EDT | Flash Flood Warning | PHI | 76 days |
| Jul 14, 3:40 PM EDT | Mesoscale Discussion | SPC | 95 min |
| Jul 14, 4:24 PM EDT | Severe Thunderstorm Warning | PHI | 66 min |
| Jul 27, 10:44 PM EDT | Flash Flood Warning | PHI | 4 hr |
| Jul 28, 2:28 AM EDT | Flash Flood Warning | PHI | 3 hr |
| Aug 1, 7:50 AM EDT | Flash Flood Warning | PHI | 115 min |
| Aug 1, 9:08 AM EDT | Flash Flood Warning | PHI | 2 hr |
| Aug 4, 5:48 PM EDT | Mesoscale Discussion | SPC | 117 min |
| Aug 4, 7:02 PM EDT | Severe Thunderstorm Warning | PHI | 73 min |
| Aug 4, 7:10 PM EDT | Severe Thunderstorm Watch | SPC | 4 hr |
| Aug 11, 11:59 AM EDT | Mesoscale Discussion | SPC | 91 min |
| Aug 11, 12:55 PM EDT | Severe Thunderstorm Watch | SPC | 7 hr |
| Aug 11, 2:40 PM EDT | Severe Thunderstorm Warning | PHI | 95 min |
| Aug 11, 3:12 PM EDT | Tornado Warning | PHI | 78 min |
| Aug 11, 7:00 PM EDT | Mesoscale Discussion | SPC | 90 min |
| Aug 12, 8:50 PM EDT | Flash Flood Warning | PHI | 3 hr |
| Aug 18, 1:24 PM EDT | Mesoscale Discussion | SPC | 96 min |
| Aug 19, 6:10 PM EDT | Severe Thunderstorm Watch | SPC | 4 hr |
| Aug 21, 11:48 AM EDT | Mesoscale Discussion | SPC | 117 min |
| Aug 21, 12:55 PM EDT | Severe Thunderstorm Warning | PHI | 50 min |
| Aug 30, 7:46 PM EDT | Flash Flood Warning | PHI | 119 min |
| Sep 9, 2:05 AM EDT | Mesoscale Discussion | SPC | 2 hr |
| Sep 18, 2:39 AM EDT | Mesoscale Discussion | SPC | 2 hr |
| Sep 18, 3:29 AM EDT | Severe Thunderstorm Warning | PHI | 31 min |
| Sep 18, 5:10 AM EDT | Mesoscale Discussion | SPC | 2 hr |
| Sep 18, 10:31 AM EDT | Flash Flood Warning | PHI | 3 hr |
| Sep 18, 1:45 PM EDT | Flash Flood Warning | PHI | 2 hr |
| Sep 28, 1:49 PM EDT | Mesoscale Discussion | SPC | 116 min |
| Sep 28, 2:25 PM EDT | Tornado Watch | SPC | 7 hr |
| Sep 28, 3:55 PM EDT | Flash Flood Warning | PHI | 3 hr |
| Sep 28, 4:36 PM EDT | Mesoscale Discussion | SPC | 114 min |
| Sep 28, 4:41 PM EDT | Severe Thunderstorm Warning | PHI | 79 min |
| Sep 28, 6:47 PM EDT | Flash Flood Warning | PHI | 3 hr |
| Sep 28, 8:05 PM EDT | Flash Flood Warning | PHI | 6 hr |
| Nov 25, 7:12 AM EST | Mesoscale Discussion | SPC | 63 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 | |
| Severe Thunderstorm Warning | 17 |
| Tornado Warning | 2 |
| Severe Thunderstorm Watch | 11 |
| Tornado Watch | 1 |
| Mesoscale Discussion | 44 |
| Flooding | |
| Flash Flood Warning | 18 |
The busiest days
Days with the most alerts issued, by UTC date.
Nearby
Alerts in force nowTornadoes on recordForecastThe radar archive20032005
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.