United States

Severe Weather in Ottawa, United States

Right now

No severe weather recorded here in the last 24 hours.

The most recent data we hold from Iowa Environmental Mesonet (Iowa State University) arrived 5 hours ago. We record detections, not passes: an absence is not proof that nothing is there.

21, recorded here, since 9 May 2026

1 in the last 30 days. Most recent: 14 October 2026 (22 days ago).

The 17th strongest of the 21 recorded here since 9 May 2026.

By month

  • May 20265
  • June 20266
  • July 20267
  • August 20261
  • September 20261
  • October 20261

July 2026 is the most active month of the 6 in our series here, with 7 events.

Recent events

Severe WeatherMedium

Marine thunderstorm wind (39 MPH), 1 SSW South Bass Island, Ottawa Co., OH

14 October 2026time not reported by the sourceIndex 32 · version not recorded
Severe WeatherMedium

Severe Thunderstorm Warning

3 September 2026time not reported by the sourceIndex 37 · version not recorded2 independent sources
Severe WeatherMedium

Severe Thunderstorm Warning

11 August 2026time not reported by the sourceIndex 39 · version not recorded
Severe WeatherMedium

Severe Thunderstorm Warning

28 July 2026time not reported by the sourceIndex 43 · version not recorded
Severe WeatherMedium

Flood Warning

7 July 2026time not reported by the sourceIndex 43 · version not recorded
Severe WeatherMedium

Flood Warning

7 July 2026time not reported by the sourceIndex 43 · version not recorded
Severe WeatherMedium

Flood Warning

6 July 2026time not reported by the sourceIndex 43 · version not recorded9 independent sources
Severe WeatherMedium

Flood Warning

6 July 2026time not reported by the sourceIndex 43 · version not recorded9 independent sources
Severe WeatherMedium

Flash Flood Warning

6 July 2026time not reported by the sourceIndex 43 · version not recorded7 independent sources
Severe WeatherMedium

Flash Flood Warning

6 July 2026time not reported by the sourceIndex 43 · version not recorded7 independent sources
Severe WeatherMedium

Severe Thunderstorm Warning

10 June 2026time not reported by the sourceIndex 32 · version not recorded
Severe WeatherMedium

Severe Thunderstorm Warning

10 June 2026time not reported by the sourceIndex 32 · version not recorded
Severe WeatherMedium

Severe Thunderstorm Warning

10 June 2026time not reported by the sourceIndex 32 · version not recorded
Severe WeatherMedium

Severe Thunderstorm Warning

10 June 2026time not reported by the sourceIndex 32 · version not recorded
Severe WeatherMedium

Special Marine Warning

6 June 2026time not reported by the sourceIndex 39 · version not recorded
Severe WeatherMedium

Special Marine Warning

6 June 2026time not reported by the sourceIndex 39 · version not recorded
Severe WeatherMedium

Severe Thunderstorm Warning

19 May 2026time not reported by the sourceIndex 43 · version not recorded2 independent sources
Severe WeatherMedium

Severe Thunderstorm Warning

19 May 2026time not reported by the sourceIndex 39 · version not recorded3 independent sources
Severe WeatherMedium

Special Marine Warning

19 May 2026time not reported by the sourceIndex 43 · version not recorded3 independent sources
Severe WeatherMedium

Special Marine Warning

18 May 2026time not reported by the sourceIndex 43 · version not recorded
Severe WeatherMedium

Special Marine Warning

9 May 2026time not reported by the sourceIndex 43 · version not recorded

Towns with the most events here

Other areas

Series begins 8 March 2026. Comparisons refer to that period only. Collection gap: 14-26 August 2026.

Administrative boundaries: geoBoundaries (geoboundaries.org), Public Domain. geoboundaries.org