Mercer County, Missouri weather alerts
No watches, warnings or advisories are in force for Mercer County.
Checked Sun, Sep 20, 2026, 10:31 AM CDT. Times are Central Daylight Time.
Warnings on the map
Every watch, warning and advisory the National Weather Service has in force over Mercer County, Missouri. 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 Mercer 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 Mercer County
In the past year the National Weather Service issued 164 alerts for Mercer County, including 53 severe thunderstorm warnings, 5 flash flood warnings, 5 flood warnings and 4 red flag warnings.
| Product | Issued | Most recent |
|---|---|---|
| Severe Thunderstorm Warning | 53 | Sep 19, 2026 |
| Flash Flood Warning | 5 | Jun 11, 2026 |
| Flood Warning | 5 | Jun 11, 2026 |
| Red Flag Warning | 4 | Mar 28, 2026 |
| Extreme Heat Warning | 3 | Sep 3, 2026 |
| Freeze Warning | 2 | Mar 28, 2026 |
| Tornado Warning | 2 | Jun 10, 2026 |
| Extreme Cold Warning | 1 | Jan 23, 2026 |
| High Wind Warning | 1 | Mar 15, 2026 |
| Snow Squall Warning | 1 | Jan 16, 2026 |
| Winter Storm Warning | 1 | Nov 29, 2025 |
| Tornado Watch | 10 | Jun 11, 2026 |
| Flood Watch | 9 | Sep 15, 2026 |
| Severe Thunderstorm Watch | 6 | Sep 19, 2026 |
| Extreme Heat Watch | 2 | Jul 25, 2026 |
| Fire Weather Watch | 2 | Mar 28, 2026 |
| Extreme Cold Watch | 1 | Jan 23, 2026 |
| Freeze Watch | 1 | Nov 1, 2025 |
| High Wind Watch | 1 | Mar 15, 2026 |
| Winter Storm Watch | 1 | Nov 28, 2025 |
| Dense Fog Advisory | 20 | Sep 11, 2026 |
| Flood Advisory | 7 | Sep 15, 2026 |
| Wind Advisory | 7 | Jun 17, 2026 |
| Heat Advisory | 6 | Aug 31, 2026 |
| Winter Weather Advisory | 6 | Apr 6, 2026 |
| Frost Advisory | 4 | May 2, 2026 |
| Cold Weather Advisory | 3 | Jan 26, 2026 |
Warnings issued
- Severe Thunderstorm Warning
- Extreme Heat Warning
- Severe Thunderstorm Warning
- Extreme Heat Warning
- Extreme Heat Warning
- Severe Thunderstorm Warning
- Severe Thunderstorm Warning
- Flood Warning
- Severe Thunderstorm Warning
- Flash Flood Warning
- Severe Thunderstorm Warning
- Flash Flood Warning
- Severe Thunderstorm Warning
- Severe Thunderstorm Warning
- Severe Thunderstorm Warning
- 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
- Flood Warning
- Flood Warning
- Flash Flood Warning
- Severe Thunderstorm Warning
- Severe Thunderstorm Warning
- Severe Thunderstorm Warning
- Flood Warning
- Severe Thunderstorm Warning
- Severe Thunderstorm Warning
- Severe Thunderstorm Warning
- Severe Thunderstorm Warning
- Severe Thunderstorm Warning
- Severe Thunderstorm Warning
- Severe Thunderstorm Warning
- Severe Thunderstorm Warning
- Severe Thunderstorm 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
- Severe Thunderstorm Warning
- Severe Thunderstorm Warning
- Severe Thunderstorm Warning
- Severe Thunderstorm Warning
- Severe Thunderstorm Warning
- Severe Thunderstorm Warning
- Severe Thunderstorm Warning
- Severe Thunderstorm Warning
- Severe Thunderstorm Warning
- Severe Thunderstorm Warning
And 18 earlier warnings.
Every alert, most recent first
- Severe Thunderstorm Watch
- Severe Thunderstorm Warning
- Flood Advisory
- Flood Advisory
- Flood Watch
- Dense Fog Advisory
- Extreme Heat Warning
- Heat Advisory
- Dense Fog Advisory
- Dense Fog Advisory
- Flood Watch
- Heat Advisory
- Dense Fog Advisory
- Dense Fog Advisory
- Severe Thunderstorm Warning
- Flood Advisory
- Heat Advisory
- Extreme Heat Warning
- Extreme Heat Watch
- Heat Advisory
- Flood Advisory
- Heat Advisory
- Extreme Heat Watch
- Extreme Heat Warning
- Dense Fog Advisory
- Flood Watch
- Wind Advisory
- Flood Advisory
- Severe Thunderstorm Warning
- Severe Thunderstorm Watch
- Tornado Watch
- Severe Thunderstorm Warning
- Flood Warning
- Severe Thunderstorm Warning
- Flash Flood Warning
- Severe Thunderstorm Warning
- Flash Flood Warning
- Severe Thunderstorm Warning
- Severe Thunderstorm Warning
- Severe Thunderstorm Warning
The 40 most recent of 164.
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 Mercer 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.