Alert archive / Delaware / 2021
Weather alerts in Delaware, April 2021
16 weather alerts in April 2021, from the National Weather Service and the Storm Prediction Center. An alert counts here when it covered any part of the state, so the counties below add up to more than the state.
Weather alerts by county
Each county as a circle sized by its count in April 2021. Tap one for its archive.
- Alerts
- 16
- Warnings
- 7
- Watches
- 2
- Advisories
- 2
- Busiest day
- April 21, 20217 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 | Counties | Lasted |
|---|---|---|---|---|
| Apr 1, 3:14 AM EDT | Freeze Warning | PHI | Kent, Sussex | 30 hr |
| Apr 2, 8:46 AM EDT | Freeze Warning | PHI | Kent, Sussex | 24 hr |
| Apr 10, 1:19 AM EDT | Special Weather Statement | PHI | New Castle | 56 min |
| Apr 10, 3:22 AM EDT | Areal Flood Advisory | PHI | New Castle | 2 hr |
| Apr 11, 9:43 PM EDT | Special Weather Statement | PHI | New Castle | 47 min |
| Apr 21, 12:22 PM EDT | Mesoscale Discussion | SPC | Kent, New Castle, Sussex | 113 min |
| Apr 21, 12:28 PM EDT | Severe Thunderstorm Watch | SPC | Kent, New Castle, Sussex | 5 hr |
| Apr 21, 1:10 PM EDT | Severe Thunderstorm Warning | PHI | New Castle | 50 min |
| Apr 21, 1:23 PM EDT | Severe Thunderstorm Warning | PHI | Kent | 37 min |
| Apr 21, 2:09 PM EDT | Special Weather Statement | PHI | Sussex | 36 min |
| Apr 21, 2:18 PM EDT | Severe Thunderstorm Warning | PHI | Kent, Sussex | 42 min |
| Apr 21, 2:47 PM EDT | Severe Thunderstorm Warning | PHI | Sussex | 16 min |
| Apr 22, 2:31 PM EDT | Frost Advisory | PHI | Kent, New Castle, Sussex | 17 hr |
| Apr 29, 3:32 AM EDT | High Wind Watch | PHI | Kent, New Castle, Sussex | 16 hr |
| Apr 29, 4:52 PM EDT | Mesoscale Discussion | SPC | Kent, New Castle | 2 hr |
| Apr 29, 7:23 PM EDT | High Wind Warning | PHI | Kent, New Castle, Sussex | 26 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 | 4 |
| Severe Thunderstorm Watch | 1 |
| Mesoscale Discussion | 2 |
| Special Weather Statement | 3 |
| Flooding | |
| Areal Flood Advisory | 1 |
| Cold | |
| Freeze Warning | 2 |
| Frost Advisory | 1 |
| Wind and dust | |
| High Wind Warning | 1 |
| High Wind Watch | 1 |
By county
Every county with at least one alert. A county page lists each alert that covered it.
Nearby
Alerts in force nowTornadoes on recordThe radar archive20202022
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.