Alert archive / Pennsylvania / Chester County
Weather alerts in Chester County, Pennsylvania, 1998
30 weather alerts in 1998, 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 1998. Tap one for its archive.
- Alerts
- 30
- Warnings
- 18
- Watches
- 12
- Advisories
- 0
- Busiest month
- April11 alerts
- Busiest day
- April 2, 19984 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 |
|---|---|---|---|
| Apr 1, 2:23 PM EST | Severe Thunderstorm Warning | PHI | 32 min |
| Apr 1, 3:38 PM EST | Flash Flood Warning | PHI | 3 hr |
| Apr 1, 6:20 PM EST | Flash Flood Warning | PHI | 3 hr |
| Apr 1, 7:15 PM EST | Tornado Watch | SPC | 5 hr |
| Apr 1, 8:10 PM EST | Flash Flood Warning | PHI | 110 min |
| Apr 1, 9:43 PM EST | Severe Thunderstorm Warning | PHI | 32 min |
| Apr 1, 9:56 PM EST | Flash Flood Warning | PHI | 2 hr |
| Apr 8, 4:02 PM EDT | Severe Thunderstorm Warning | PHI | 28 min |
| Apr 9, 8:25 PM EDT | Flash Flood Warning | PHI | 5 hr |
| Apr 17, 3:00 PM EDT | Severe Thunderstorm Watch | SPC | 6 hr |
| Apr 17, 5:02 PM EDT | Severe Thunderstorm Warning | PHI | 48 min |
| May 29, 7:15 PM EDT | Severe Thunderstorm Watch | SPC | 6 hr |
| May 29, 8:14 PM EDT | Severe Thunderstorm Warning | PHI | 46 min |
| May 31, 5:00 PM EDT | Tornado Watch | SPC | 5 hr |
| May 31, 9:39 PM EDT | Tornado Warning | PHI | 36 min |
| May 31, 10:00 PM EDT | Tornado Watch | SPC | 6 hr |
| Jun 1, 12:40 AM EDT | Severe Thunderstorm Warning | PHI | 50 min |
| Jun 2, 5:15 PM EDT | Tornado Watch | SPC | 6 hr |
| Jun 16, 4:00 PM EDT | Severe Thunderstorm Watch | SPC | 6 hr |
| Jun 16, 7:15 PM EDT | Severe Thunderstorm Watch | SPC | 4 hr |
| Jun 26, 11:45 AM EDT | Severe Thunderstorm Watch | SPC | 5 hr |
| Jun 26, 2:05 PM EDT | Severe Thunderstorm Warning | PHI | 65 min |
| Jun 26, 2:15 PM EDT | Severe Thunderstorm Watch | SPC | 7 hr |
| Jun 30, 3:15 PM EDT | Severe Thunderstorm Watch | SPC | 6 hr |
| Jun 30, 6:56 PM EDT | Severe Thunderstorm Warning | PHI | 49 min |
| Jul 21, 6:28 PM EDT | Severe Thunderstorm Warning | PHI | 47 min |
| Sep 2, 6:46 PM EDT | Tornado Warning | PHI | 34 min |
| Sep 7, 10:45 AM EDT | Severe Thunderstorm Watch | SPC | 5 hr |
| Sep 7, 1:04 PM EDT | Severe Thunderstorm Warning | PHI | 61 min |
| Sep 30, 9:13 PM EDT | Severe Thunderstorm Warning | PHI | 47 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 | 11 |
| Tornado Warning | 2 |
| Severe Thunderstorm Watch | 8 |
| Tornado Watch | 4 |
| Flooding | |
| Flash Flood Warning | 5 |
The busiest days
Days with the most alerts issued, by UTC date.
Nearby
Alerts in force nowTornadoes on recordForecastThe radar archive19971999
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.