Severe Thunderstorm Warning — Sussex 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 20 at 7:17PM EDT until August 20 at 7:45PM EDT by NWS Mount Holly NJ
At 716 PM EDT, a severe thunderstorm was located near Seaford, or 10 miles east of Hurlock, moving east at 35 mph. HAZARD...60 mph wind gusts. SOURCE...Radar indicated. IMPACT...Expect damage to trees and power lines. Locations impacted include... Georgetown, Seaford, Millsboro, Laurel, Lewes, Federalsburg, Milton, Bridgeville, Delmar, Preston, Ellendale, Gumboro, Smithville, Agner, and Sycamore.
Effective August 20, 2026 at 7:17 PM ET · Expires August 20, 2026 at 7:45 PM ET
Event Details
Event Type
Severe Thunderstorm Warning
Severity
severe
Issued By
NWS Mount Holly NJ
Expires
August 20, 2026 at 7:45 PM ET
Last Checked
2 minutes ago
What To Do
📋 Official NWS Guidance
A Tornado Watch remains in effect until 1000 PM EDT for central and southern Delaware...and eastern Maryland. 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
Tornado Watch
Tornado Watch
Flash Flood Warning
Flash Flood Warning
Severe Thunderstorm Warning
Tornado Watch
Get Severe Thunderstorm Warning Alerts for Sussex 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 Sussex 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 (2 minutes ago). It's set to expire August 20, 2026 at 7:45 PM ET.
How do I get notified about Severe Thunderstorm Warning alerts for Sussex County?
Download StormCast free on Google Play and set Sussex 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 Caroline County.