Severe Thunderstorm Warning — New Castle County, Delaware
A thunderstorm capable of producing damaging winds of 58+ mph and/or 1-inch hail has been detected.
Current Status
⛈️ Active: Severe Thunderstorm Warning
Severe Thunderstorm Warning issued August 7 at 5:51PM EDT until August 7 at 6:00PM EDT by NWS Mount Holly NJ
At 550 PM EDT, a severe thunderstorm was located over Arden, or near Wilmington, moving east at 20 mph. HAZARD...60 mph wind gusts. SOURCE...Radar indicated. IMPACT...Damage to roofs, siding, trees, and power lines is possible. Locations impacted include... Wilmington, Westtown, Elsmere, Newport, Arden, Gradyville, Greenville, Cheyney, Talleyville, Elam, Concordville, Chelsea, Lima, Chester Heights, Bellefonte, Ardentown, Ardencroft, Edgemoor, Claymont, and Boothwyn. This includes Interstate 95 in Delaware between mile markers 11 and 21.
Effective August 7, 2026 at 5:51 PM ET · Expires August 7, 2026 at 6:00 PM ET
Event Details
Event Type
Severe Thunderstorm Warning
Severity
severe
Issued By
NWS Mount Holly NJ
Expires
August 7, 2026 at 6:00 PM ET
Last Checked
25 minutes ago
What To Do
📋 Official NWS Guidance
For your protection move to an interior room on the lowest floor of a building.
Also In Effect For
This same Severe Thunderstorm Warning also covers:
Other Active Alerts in Delaware
Severe Thunderstorm Watch
Severe Thunderstorm Watch
Severe Thunderstorm Watch
Get Severe Thunderstorm Warning Alerts for New Castle County
StormCast checks the NWS feed continuously and pushes alerts like this directly to your phone — even with the screen off.
Frequently Asked Questions
What does a Severe Thunderstorm Warning mean for New Castle County, Delaware?
A thunderstorm capable of producing damaging winds of 58+ mph and/or 1-inch hail has been detected.
Is this Severe Thunderstorm Warning currently active?
Yes — this alert is active as of our last check (25 minutes ago). It's set to expire August 7, 2026 at 6:00 PM ET.
How do I get notified about Severe Thunderstorm Warning alerts for New Castle County?
Download StormCast free on Google Play and set New Castle County, Delaware as one of your monitored locations. StormCast checks the NWS feed continuously and pushes alerts like this directly to your phone — even with the screen off.
What other areas does this alert cover?
This same Severe Thunderstorm Warning is also in effect for Chester County, Delaware County.