Alert archive / Delaware / 2026
Weather alerts in Delaware, August 2026
53 weather alerts in August 2026, 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 August 2026. Tap one for its archive.
- Alerts
- 53
- Warnings
- 31
- Watches
- 9
- Advisories
- 3
- Busiest day
- August 20, 202617 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 |
|---|---|---|---|---|
| Aug 2, 2:20 PM EDT | Flood Watch | PHI | New Castle | 26 hr |
| Aug 3, 9:08 AM EDT | Flash Flood Warning | PHI | New Castle | 3 hr |
| Aug 5, 1:50 PM EDT | Heat Advisory | PHI | New Castle | 3 days |
| Aug 7, 12:50 PM EDT | Mesoscale Discussion | SPC | New Castle | 2 hr |
| Aug 7, 1:22 PM EDT | Severe Thunderstorm Watch | SPC | Kent, New Castle, Sussex | 7 hr |
| Aug 7, 4:56 PM EDT | Severe Thunderstorm Warning | PHI | New Castle | 64 min |
| Aug 8, 11:55 AM EDT | Mesoscale Discussion | SPC | New Castle | 95 min |
| Aug 8, 1:12 PM EDT | Severe Thunderstorm Watch | SPC | Kent, New Castle, Sussex | 5 hr |
| Aug 8, 1:26 PM EDT | Severe Thunderstorm Warning | PHI | New Castle | 49 min |
| Aug 8, 1:44 PM EDT | Severe Thunderstorm Warning | PHI | Kent, New Castle | 46 min |
| Aug 10, 9:29 AM EDT | Mesoscale Discussion | SPC | New Castle | 91 min |
| Aug 10, 12:59 PM EDT | Mesoscale Discussion | SPC | Kent | 2 hr |
| Aug 10, 2:10 PM EDT | Severe Thunderstorm Watch | SPC | Kent, New Castle, Sussex | 6 hr |
| Aug 10, 4:19 PM EDT | Mesoscale Discussion | SPC | Kent, New Castle | 116 min |
| Aug 10, 4:39 PM EDT | Severe Thunderstorm Warning | PHI | New Castle | 66 min |
| Aug 10, 4:46 PM EDT | Severe Thunderstorm Warning | PHI | New Castle | 20 min |
| Aug 10, 5:36 PM EDT | Severe Thunderstorm Warning | PHI | Kent, New Castle, Sussex | 39 min |
| Aug 10, 6:07 PM EDT | Severe Thunderstorm Warning | PHI | Kent, New Castle, Sussex | 38 min |
| Aug 10, 6:22 PM EDT | Severe Thunderstorm Warning | PHI | Sussex | 23 min |
| Aug 10, 6:28 PM EDT | Mesoscale Discussion | SPC | Kent, Sussex | 92 min |
| Aug 10, 7:04 PM EDT | Severe Thunderstorm Warning | PHI | Sussex | 41 min |
| Aug 11, 3:23 AM EDT | Coastal Flood Advisory | PHI | Kent, New Castle, Sussex | 23 hr |
| Aug 11, 4:56 PM EDT | Coastal Flood Advisory | PHI | Kent, New Castle, Sussex | 33 hr |
| Aug 17, 4:43 AM EDT | Flash Flood Warning | PHI | New Castle | 2 hr |
| Aug 17, 6:45 PM EDT | Severe Thunderstorm Warning | PHI | New Castle | 32 min |
| Aug 17, 7:04 PM EDT | Severe Thunderstorm Warning | PHI | Kent | 20 min |
| Aug 19, 2:08 PM EDT | Flood Watch | PHI | New Castle | 31 hr |
| Aug 20, 1:53 PM EDT | Mesoscale Discussion | SPC | Kent, New Castle | 2 hr |
| Aug 20, 2:31 PM EDT | Severe Thunderstorm Watch | SPC | Kent, New Castle, Sussex | 7 hr |
| Aug 20, 2:58 PM EDT | Tornado Watch | SPC | Kent, New Castle, Sussex | 7 hr |
| Aug 20, 4:16 PM EDT | Tornado Warning | PHI | Kent | 29 min |
| Aug 20, 4:26 PM EDT | Mesoscale Discussion | SPC | Kent, New Castle | 2 hr |
| Aug 20, 4:50 PM EDT | Severe Thunderstorm Warning | PHI | New Castle | 40 min |
| Aug 20, 5:27 PM EDT | Severe Thunderstorm Warning | PHI | New Castle | 48 min |
| Aug 20, 5:39 PM EDT | Flash Flood Warning | PHI | New Castle | 4 hr |
| Aug 20, 5:39 PM EDT | Tornado Warning | PHI | Kent | 36 min |
| Aug 20, 5:40 PM EDT | Severe Thunderstorm Warning | PHI | Kent | 50 min |
| Aug 20, 6:03 PM EDT | Tornado Warning | PHI | Kent | 42 min |
| Aug 20, 6:09 PM EDT | Severe Thunderstorm Warning | PHI | Kent, New Castle | 51 min |
| Aug 20, 6:13 PM EDT | Severe Thunderstorm Warning | PHI | New Castle | 47 min |
| Aug 20, 6:21 PM EDT | Severe Thunderstorm Warning | PHI | Kent, Sussex | 39 min |
| Aug 20, 6:42 PM EDT | Mesoscale Discussion | SPC | Kent, Sussex | 93 min |
| Aug 20, 6:53 PM EDT | Flash Flood Warning | PHI | Kent | 105 min |
| Aug 20, 6:57 PM EDT | Severe Thunderstorm Warning | PHI | Kent, Sussex | 48 min |
| Aug 23, 3:32 AM EDT | Flash Flood Warning | PHI | New Castle | 3 hr |
| Aug 26, 2:31 PM EDT | Flood Watch | PHI | New Castle | 35 hr |
| Aug 27, 10:57 AM EDT | Mesoscale Discussion | SPC | New Castle | 2 hr |
| Aug 27, 11:38 AM EDT | Flash Flood Warning | PHI | New Castle | 4 hr |
| Aug 27, 12:51 PM EDT | Severe Thunderstorm Watch | SPC | Kent, New Castle | 9 hr |
| Aug 27, 1:32 PM EDT | Severe Thunderstorm Warning | PHI | New Castle | 43 min |
| Aug 27, 1:50 PM EDT | Flash Flood Warning | PHI | New Castle | 4 hr |
| Aug 27, 3:26 PM EDT | Areal Flood Warning | PHI | New Castle | 5 hr |
| Aug 28, 1:11 PM EDT | Flash Flood Warning | PHI | Sussex | 4 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 | 19 |
| Tornado Warning | 3 |
| Severe Thunderstorm Watch | 5 |
| Tornado Watch | 1 |
| Mesoscale Discussion | 10 |
| Flooding | |
| Areal Flood Warning | 1 |
| Flash Flood Warning | 8 |
| Flood Watch | 3 |
| Heat | |
| Heat Advisory | 1 |
| Coast and beach | |
| Coastal Flood Advisory | 2 |
By county
Every county with at least one alert. A county page lists each alert that covered it.
Nearby
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.