Alert archive / Delaware / Severe Thunderstorm Warnings
Severe Thunderstorm Warnings in Delaware, 1999
10 severe thunderstorm warnings in 1999. An alert counts here when it covered any part of the state, so the counties below add up to more than the state. The archive of severe thunderstorm warnings reaches back to 1986.
Severe Thunderstorm Warnings by county
Each county as a circle sized by its count in 1999. Tap one for its archive.
- Severe Thunderstorm Warnings
- 10
- Busiest month
- April4 severe thunderstorm warnings
- Busiest day
- April 9, 19992 severe thunderstorm warnings
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 | Counties | Lasted |
|---|---|---|---|---|
| Jan 18, 11:23 AM EST | Severe Thunderstorm Warning | PHI | Kent | 32 min |
| Apr 9, 7:35 PM EDT | Severe Thunderstorm Warning | PHI | New Castle | 45 min |
| Apr 9, 7:44 PM EDT | Severe Thunderstorm Warning | PHI | Sussex | 56 min |
| Apr 9, 8:00 PM EDT | Severe Thunderstorm Warning | PHI | Kent | 50 min |
| Apr 23, 4:53 PM EDT | Severe Thunderstorm Warning | PHI | Sussex | 32 min |
| May 24, 3:11 PM EDT | Severe Thunderstorm Warning | PHI | New Castle | 29 min |
| Jul 24, 2:04 PM EDT | Severe Thunderstorm Warning | PHI | Sussex | 46 min |
| Jul 25, 11:14 PM EDT | Severe Thunderstorm Warning | PHI | Kent | 61 min |
| Aug 14, 4:58 PM EDT | Severe Thunderstorm Warning | PHI | New Castle | 47 min |
| Aug 20, 12:23 PM EDT | Severe Thunderstorm Warning | PHI | Kent | 32 min |
By county
Every county with at least one alert. A county page lists each alert that covered it.
The busiest days
Days with the most alerts issued, by UTC date.
Nearby
Alerts in force nowTornadoes on recordThe radar archive19982000
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. Rebuilt daily.