Jefferson County, Tennessee weather alerts
No watches, warnings or advisories are in force for Jefferson County.
Checked Wed, Sep 23, 2026, 11:31 PM EDT. Times are Eastern Daylight Time.
Warnings on the map
Every watch, warning and advisory the National Weather Service has in force over Jefferson County, Tennessee. 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 Jefferson 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 Jefferson County
In the past year the National Weather Service issued 75 alerts for Jefferson County, including 15 severe thunderstorm warnings, 4 flash flood warnings, 1 ice storm warning and 1 winter storm warning.
| Product | Issued | Most recent |
|---|---|---|
| Severe Thunderstorm Warning | 15 | Sep 18, 2026 |
| Flash Flood Warning | 4 | Aug 13, 2026 |
| Ice Storm Warning | 1 | Jan 24, 2026 |
| Winter Storm Warning | 1 | Jan 30, 2026 |
| Flood Watch | 8 | Aug 12, 2026 |
| Severe Thunderstorm Watch | 4 | Aug 17, 2026 |
| Winter Storm Watch | 3 | Jan 30, 2026 |
| Flood Advisory | 18 | Sep 22, 2026 |
| Dense Fog Advisory | 9 | Sep 13, 2026 |
| Cold Weather Advisory | 5 | Feb 2, 2026 |
| Wind Advisory | 3 | Mar 16, 2026 |
| Heat Advisory | 2 | Sep 3, 2026 |
| Freezing Fog Advisory | 1 | Dec 7, 2025 |
| Winter Weather Advisory | 1 | Nov 10, 2025 |
Warnings issued
- Severe Thunderstorm Warning
- Severe Thunderstorm Warning
- Severe Thunderstorm Warning
- Severe Thunderstorm Warning
- Flash Flood Warning
- Severe Thunderstorm Warning
- Severe Thunderstorm Warning
- Severe Thunderstorm Warning
- Flash Flood Warning
- Flash Flood Warning
- Flash Flood Warning
- Severe Thunderstorm Warning
- Severe Thunderstorm Warning
- Severe Thunderstorm Warning
- Severe Thunderstorm Warning
- Severe Thunderstorm Warning
- Severe Thunderstorm Warning
- Severe Thunderstorm Warning
- Winter Storm Warning
- Ice Storm Warning
- Severe Thunderstorm Warning
Every alert, most recent first
- Flood Advisory
- Severe Thunderstorm Warning
- Dense Fog Advisory
- Severe Thunderstorm Warning
- Heat Advisory
- Severe Thunderstorm Warning
- Flood Advisory
- Severe Thunderstorm Warning
- Severe Thunderstorm Watch
- Flash Flood Warning
- Flood Advisory
- Flood Watch
- Severe Thunderstorm Warning
- Severe Thunderstorm Watch
- Dense Fog Advisory
- Flood Advisory
- Severe Thunderstorm Warning
- Severe Thunderstorm Watch
- Flood Advisory
- Severe Thunderstorm Warning
- Flood Advisory
- Flood Advisory
- Flood Watch
- Flood Advisory
- Flash Flood Warning
- Flood Watch
- Flood Advisory
- Flood Advisory
- Heat Advisory
- Flood Advisory
- Flood Advisory
- Flash Flood Warning
- Flood Advisory
- Flash Flood Warning
- Flood Watch
- Severe Thunderstorm Warning
- Flood Watch
- Flood Advisory
- Flood Watch
- Flood 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 links to the alert's own page, with its text, map, radar and sounding.
Nearby
The counties around Jefferson 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.