Johnson County, Texas weather alerts
No watches, warnings or advisories are in force for Johnson County.
Checked Sun, Sep 20, 2026, 12:02 PM CDT. Times are Central Daylight Time.
Warnings on the map
Every watch, warning and advisory the National Weather Service has in force over Johnson County, Texas. Open it for the live map, where it pans and zooms.























Open the live map with warnings and watches
Map layer from NOAA National Weather Service. Boundaries from the Iowa Environmental Mesonet.
Alerts in force
Nothing is in force for Johnson County right now. Its warnings come from the National Weather Service and appear here within a minute of being issued; every one of the past year is below.
The past year in Johnson County
In the past year the National Weather Service issued 75 alerts for Johnson County, including 15 severe thunderstorm warnings, 3 extreme heat warnings, 3 flash flood warnings and 3 freeze warnings.
| Product | Issued | Most recent |
|---|---|---|
| Severe Thunderstorm Warning | 15 | Sep 11, 2026 |
| Extreme Heat Warning | 3 | Aug 23, 2026 |
| Flash Flood Warning | 3 | Jun 7, 2026 |
| Freeze Warning | 3 | Mar 17, 2026 |
| Tornado Warning | 3 | Apr 28, 2026 |
| Flood Warning | 2 | Jun 7, 2026 |
| Extreme Cold Warning | 1 | Jan 24, 2026 |
| Red Flag Warning | 1 | Mar 15, 2026 |
| Winter Storm Warning | 1 | Jan 23, 2026 |
| Severe Thunderstorm Watch | 5 | Jul 5, 2026 |
| Flood Watch | 3 | Jun 6, 2026 |
| Tornado Watch | 3 | Apr 28, 2026 |
| Extreme Cold Watch | 1 | Jan 24, 2026 |
| Fire Weather Watch | 1 | Mar 15, 2026 |
| Freeze Watch | 1 | Nov 9, 2025 |
| Winter Storm Watch | 1 | Jan 23, 2026 |
| Heat Advisory | 12 | Sep 12, 2026 |
| Dense Fog Advisory | 5 | Feb 16, 2026 |
| Wind Advisory | 5 | Mar 15, 2026 |
| Flood Advisory | 4 | Jul 13, 2026 |
| Cold Weather Advisory | 1 | Jan 31, 2026 |
| Freezing Fog Advisory | 1 | Jan 28, 2026 |
Warnings issued
- Severe Thunderstorm Warning
- Extreme Heat Warning
- Extreme Heat Warning
- Severe Thunderstorm Warning
- Extreme Heat Warning
- Flood Warning
- Flood Warning
- Flash Flood Warning
- Flash Flood Warning
- Severe Thunderstorm Warning
- Severe Thunderstorm Warning
- Severe Thunderstorm Warning
- Severe Thunderstorm Warning
- Severe Thunderstorm Warning
- Tornado Warning
- Severe Thunderstorm Warning
- Tornado Warning
- Severe Thunderstorm Warning
- Tornado Warning
- Severe Thunderstorm Warning
- Severe Thunderstorm Warning
- Freeze Warning
- Freeze Warning
- Red Flag Warning
- Severe Thunderstorm Warning
- Extreme Cold Warning
- Winter Storm Warning
- Severe Thunderstorm Warning
- Flash Flood Warning
- Freeze Warning
- Severe Thunderstorm Warning
- Severe Thunderstorm Warning
Every alert, most recent first
- Heat Advisory
- Severe Thunderstorm Warning
- Heat Advisory
- Heat Advisory
- Extreme Heat Warning
- Extreme Heat Warning
- Heat Advisory
- Heat Advisory
- Heat Advisory
- Heat Advisory
- Heat Advisory
- Heat Advisory
- Severe Thunderstorm Warning
- Extreme Heat Warning
- Heat Advisory
- Flood Advisory
- Flood Advisory
- Severe Thunderstorm Watch
- Heat Advisory
- Heat Advisory
- Flood Advisory
- Flood Warning
- Flood Warning
- Flash Flood Warning
- Flash Flood Warning
- Severe Thunderstorm Warning
- Flood Watch
- Severe Thunderstorm Warning
- Severe Thunderstorm Warning
- Severe Thunderstorm Warning
- Flood Advisory
- Severe Thunderstorm Watch
- Severe Thunderstorm Warning
- Tornado Warning
- Severe Thunderstorm Warning
- Tornado Warning
- Severe Thunderstorm Warning
- Tornado Warning
- Severe Thunderstorm Warning
- Tornado Watch
The 40 most recent of 75.
From the Iowa Environmental Mesonet’s archive of NWS watches, warnings and advisories (VTEC), by the county’s own code and the forecast zones inside it. Each date links to the event at the IEM.
Nearby
The counties around Johnson County, with what is in force in each.
What this means
- Warning
- The hazard is happening or about to. Act now: a tornado warning means take shelter, a flash flood warning means move to higher ground.
- Watch
- Conditions favor the hazard. Nothing is happening yet; have a plan and be ready to act if a warning follows.
- Advisory
- A hazard that is less serious than a warning but can still cause trouble, such as dense fog, heat or light ice.
- Statement
- Information about weather that does not yet meet a warning: a strong storm, a hydrologic update, or a special weather statement.
Severity (extreme, severe, moderate, minor) is the rating the issuing office gives each product. More on the difference: tornado watch vs. tornado warning. Alerts come from the National Weather Service; follow its instructions and your local officials.
Sources
Alerts from the National Weather Service's public feed, read afresh every minute, and matched to counties and zones by their UGC codes. Warnings from outside the United States come from each country's own meteorological service. Follow the issuing office's instructions and your local officials.