Dewey County, South Dakota: tornado and severe weather warnings
Nothing is in effect for Dewey County as of 6:05 PM MDT: no warnings, watches or advisories. This page checks the National Weather Service every minute.
Open the live map on Dewey County Get a message when a warning reaches your address
The map shows radar, every warning shape, and the path and arrival time of each storm cell headed toward the center of Dewey County. Tap your own street on it for times that apply to you.
The last 12 months in Dewey County
- 0 tornado warnings
- 34 severe thunderstorm warnings
- 0 flash flood warnings
- 2 tornado watches
- 11 severe thunderstorm watches
No tornado warning has included Dewey County in the last 12 months.
| Date | Issued | Type | Office | Product |
|---|---|---|---|---|
| Sep 28, 2026 | 5:57 AM MDT | Severe thunderstorm warning | ABR | text |
| Sep 27, 2026 | 8:13 AM MDT | Severe thunderstorm warning | ABR | text |
| Sep 5, 2026 | 4:44 PM MDT | Severe thunderstorm warning | ABR | text |
| Sep 5, 2026 | 3:56 PM MDT | Severe thunderstorm warning | ABR | text |
| Sep 5, 2026 | 3:32 PM MDT | Severe thunderstorm warning | ABR | text |
| Sep 5, 2026 | 3:17 PM MDT | Severe thunderstorm warning | ABR | text |
| Aug 30, 2026 | 6:56 PM MDT | Severe thunderstorm warning | ABR | text |
| Aug 29, 2026 | 11:39 PM MDT | Severe thunderstorm warning | ABR | text |
| Aug 29, 2026 | 10:45 PM MDT | Severe thunderstorm warning | ABR | text |
| Aug 29, 2026 | 10:11 PM MDT | Severe thunderstorm warning | ABR | text |
| Aug 29, 2026 | 9:23 PM MDT | Severe thunderstorm warning | ABR | text |
| Aug 29, 2026 | 6:58 PM MDT | Severe thunderstorm warning | ABR | text |
A warning counts here if the Weather Service listed Dewey County in it, even if the warned area covered only part of the county.
Nearby
- Corson County, SD
- Ziebach County, SD
- Potter County, SD
- Walworth County, SD
- Sully County, SD
- Stanley County, SD
- Campbell County, SD
- Sioux County, ND
- All of South Dakota
What the alerts mean
Alerts come from the National Weather Service and refresh every minute. Past warnings come from the Iowa Environmental Mesonet's archive of Weather Service products. During a warning, also listen to local radio, TV or a weather radio.