Ohio alerts

Clermont County, Ohio weather alerts

1 National Weather Service alert is in force for Clermont County: a flood warning.

Checked Sun, Sep 20, 2026, 9:25 AM EDT. Times are Eastern Daylight Time.

Clermont County forecastLive radar here

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Radar mosaic and map layers from NOAA MRMS. Boundaries from the Iowa Environmental Mesonet.

Alerts in force1

Every product in force for Clermont County, worst first, with its full text.

Flood Warning

Severe

Flood Warning issued September 20 at 7:52AM EDT until September 20 at 5:00PM EDT by NWS Wilmington OH

Issued Until 7 hr 34 min left

Areas Clermont, OH; Hamilton, OH

Full text

...The National Weather Service in Wilmington has issued a Flood Warning for the following rivers... Little Miami River at Milford. * WHAT...Minor flooding is occurring and minor flooding is forecast. * WHERE...Little Miami River at Milford. * WHEN...From this morning to this afternoon. * IMPACTS...At 17.0 feet, Lowland flooding occurs along the river in Clermont and Hamilton Counties, with flooding of Karl Brown Way near Loveland. * ADDITIONAL DETAILS... - At 7:30 AM EDT Sunday the stage was 17.1 feet. - Forecast...The river is expected to rise to a crest of 17.6 feet this morning. It will then fall below flood stage late this morning. - Flood stage is 17.0 feet.

What to do

Turn around, don't drown when encountering flooded roads. Most flood deaths occur in vehicles. Additional information is available at www.weather.gov/iln.

NWS Wilmington OHShare this alert

The past year in Clermont County

In the past year the National Weather Service issued 146 alerts for Clermont County, including 22 severe thunderstorm warnings, 7 flash flood warnings, 7 flood warnings and 6 tornado warnings.

ProductIssuedMost recent
Severe Thunderstorm Warning22Aug 12, 2026
Flash Flood Warning7Sep 20, 2026
Flood Warning7Sep 20, 2026
Tornado Warning6Aug 11, 2026
Freeze Warning3Apr 7, 2026
Extreme Cold Warning2Jan 30, 2026
Winter Storm Warning2Jan 24, 2026
Extreme Heat Warning1Jun 30, 2026
High Wind Warning1Mar 15, 2026
Severe Thunderstorm Watch11Aug 11, 2026
Flood Watch9Sep 18, 2026
Tornado Watch3Jun 17, 2026
Winter Storm Watch2Jan 24, 2026
Extreme Cold Watch1Jan 26, 2026
Freeze Watch1Oct 24, 2025
Flood Advisory23Sep 20, 2026
Winter Weather Advisory11Mar 17, 2026
Dense Fog Advisory10Sep 13, 2026
Cold Weather Advisory9Feb 7, 2026
Frost Advisory6May 3, 2026
Wind Advisory6Mar 15, 2026
Heat Advisory3Sep 1, 2026

Warnings issued

  1. Flood Warning
  2. Flood Warning
  3. Flood Warning
  4. Flash Flood Warning
  5. Severe Thunderstorm Warning
  6. Severe Thunderstorm Warning
  7. Flash Flood Warning
  8. Tornado Warning
  9. Tornado Warning
  10. Severe Thunderstorm Warning
  11. Tornado Warning
  12. Severe Thunderstorm Warning
  13. Severe Thunderstorm Warning
  14. Flash Flood Warning
  15. Severe Thunderstorm Warning
  16. Severe Thunderstorm Warning
  17. Severe Thunderstorm Warning
  18. Severe Thunderstorm Warning
  19. Flash Flood Warning
  20. Tornado Warning
  21. Severe Thunderstorm Warning
  22. Tornado Warning
  23. Severe Thunderstorm Warning
  24. Severe Thunderstorm Warning
  25. Flood Warning
  26. Flood Warning
  27. Flash Flood Warning
  28. Flash Flood Warning
  29. Extreme Heat Warning
  30. Flood Warning
  31. Severe Thunderstorm Warning
  32. Severe Thunderstorm Warning
  33. Flash Flood Warning
  34. Tornado Warning
  35. Severe Thunderstorm Warning
  36. Freeze Warning
  37. Freeze Warning
  38. Severe Thunderstorm Warning
  39. High Wind Warning
  40. Flood Warning
  41. Extreme Cold Warning
  42. Extreme Cold Warning
  43. Winter Storm Warning
  44. Severe Thunderstorm Warning
  45. Severe Thunderstorm Warning
  46. Severe Thunderstorm Warning
  47. Winter Storm Warning
  48. Severe Thunderstorm Warning
  49. Freeze Warning
  50. Severe Thunderstorm Warning
  51. Severe Thunderstorm Warning
Every alert, most recent first
  1. Flood Warning
  2. Flood Warning
  3. Flood Warning
  4. Flood Advisory
  5. Flash Flood Warning
  6. Flood Advisory
  7. Flood Watch
  8. Dense Fog Advisory
  9. Flood Advisory
  10. Heat Advisory
  11. Severe Thunderstorm Warning
  12. Flood Advisory
  13. Severe Thunderstorm Warning
  14. Flash Flood Warning
  15. Tornado Warning
  16. Flood Advisory
  17. Tornado Warning
  18. Severe Thunderstorm Warning
  19. Tornado Warning
  20. Severe Thunderstorm Warning
  21. Severe Thunderstorm Warning
  22. Severe Thunderstorm Watch
  23. Severe Thunderstorm Watch
  24. Severe Thunderstorm Watch
  25. Flood Watch
  26. Flood Advisory
  27. Flood Advisory
  28. Flood Advisory
  29. Flash Flood Warning
  30. Flood Advisory
  31. Severe Thunderstorm Warning
  32. Severe Thunderstorm Warning
  33. Severe Thunderstorm Warning
  34. Dense Fog Advisory
  35. Severe Thunderstorm Warning
  36. Severe Thunderstorm Watch
  37. Flood Advisory
  38. Flash Flood Warning
  39. Flood Advisory
  40. Tornado Warning

The 40 most recent of 146.

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 Clermont 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.