Freeze Warning
FREEZE WARNING IN EFFECT FROM 1 AM TO 9 AM CDT SATURDAY
Take steps now to protect tender plants from the cold. To prevent water pipes from freezing; wrap or drain or allow them to drip slowly.
A freeze warning is in effect for Johnson County as of 5:09 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.
FREEZE WARNING IN EFFECT FROM 1 AM TO 9 AM CDT SATURDAY
Take steps now to protect tender plants from the cold. To prevent water pipes from freezing; wrap or drain or allow them to drip slowly.
The most recent tornado warning that included Johnson County was issued May 18, 2026 by the Weather Service office in Omaha/Valley, NE.
| Date | Issued | Type | Office | Product |
|---|---|---|---|---|
| Sep 30, 2026 | 11:54 PM CDT | Flash flood warning | OAX | text |
| Sep 14, 2026 | 9:26 PM CDT | Severe thunderstorm warning | OAX | text |
| Sep 14, 2026 | 8:40 PM CDT | Severe thunderstorm warning | OAX | text |
| Sep 14, 2026 | 7:44 PM CDT | Severe thunderstorm warning | OAX | text |
| Aug 19, 2026 | 2:45 PM CDT | Severe thunderstorm warning | OAX | text |
| Aug 19, 2026 | 2:23 PM CDT | Severe thunderstorm warning | OAX | text |
| Aug 18, 2026 | 2:30 AM CDT | Severe thunderstorm warning | OAX | text |
| Jul 3, 2026 | 9:40 PM CDT | Severe thunderstorm warning | OAX | text |
| Jul 3, 2026 | 8:54 PM CDT | Severe thunderstorm warning | OAX | text |
| Jul 3, 2026 | 8:11 PM CDT | Severe thunderstorm warning | OAX | text |
| Jul 3, 2026 | 7:36 PM CDT | Severe thunderstorm warning | OAX | text |
| Jun 11, 2026 | 5:07 AM CDT | Severe thunderstorm warning | OAX | 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.
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.