Freeze Warning
FREEZE WARNING REMAINS IN EFFECT FROM 1 AM TO 9 AM CDT SATURDAY
Take steps now to protect tender plants from the cold.
Johnson County, Iowa: tornado and severe weather warnings
A freeze warning is in effect for Johnson County as of 5:17 PM CDT.
Open the live map on Johnson 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 Johnson County. Tap your own street on it for times that apply to you.
The last 12 months in Johnson County
- 6 tornado warnings
- 41 severe thunderstorm warnings
- 5 flash flood warnings
- 9 tornado watches
- 14 severe thunderstorm watches
The most recent tornado warning that included Johnson County was issued Sep 8, 2026 by the Weather Service office in Quad Cities, IA/IL.
| Date | Issued | Type | Office | Product |
|---|---|---|---|---|
| Sep 20, 2026 | 2:02 AM CDT | Flash flood warning | DVN | text |
| Sep 20, 2026 | 1:18 AM CDT | Severe thunderstorm warning | DVN | text |
| Sep 20, 2026 | 12:16 AM CDT | Flash flood warning | DVN | text |
| Sep 8, 2026 | 9:07 PM CDT | Severe thunderstorm warning | DVN | text |
| Sep 8, 2026 | 8:50 PM CDT | Tornado warning | DVN | text |
| Sep 8, 2026 | 8:18 PM CDT | Severe thunderstorm warning | DVN | text |
| Aug 12, 2026 | 6:19 AM CDT | Flash flood warning | DVN | text |
| Aug 12, 2026 | 5:25 AM CDT | Severe thunderstorm warning | DVN | text |
| Aug 12, 2026 | 4:37 AM CDT | Severe thunderstorm warning | DVN | text |
| Aug 7, 2026 | 5:26 PM CDT | Severe thunderstorm warning | DVN | text |
| Jul 20, 2026 | 5:11 PM CDT | Severe thunderstorm warning | DVN | text |
| Jul 20, 2026 | 10:51 AM CDT | Severe thunderstorm warning | DVN | text |
A warning counts here if the Weather Service listed Johnson County in it, even if the warned area covered only part of the county.
Nearby
- Iowa County, IA
- Washington County, IA
- Cedar County, IA
- Muscatine County, IA
- Linn County, IA
- Louisa County, IA
- Benton County, IA
- Keokuk County, IA
- All of Iowa
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.