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 NOAA arrived 31 minutes ago. We record detections, not passes: an absence is not proof that nothing is there.

44, recorded here, since 15 May 2026

No events recorded in the last 30 days. Most recent: 13 August 2026 (73 days ago).

The 3rd strongest of the 44 recorded here since 15 May 2026.

By month

  • May 20268
  • June 202621
  • July 202612
  • August 20263

June 2026 is the most active month of the 4 in our series here, with 21 events.

Recent events

Severe WeatherMedium

Severe Thunderstorm Warning

13 August 2026time not reported by the sourceIndex 34 · version not recorded
Severe WeatherMedium

Severe Thunderstorm Warning

13 August 2026time not reported by the sourceIndex 34 · version not recorded
Severe WeatherMedium

Severe Thunderstorm Warning

13 August 2026time not reported by the sourceIndex 34 · version not recorded
Severe WeatherMedium

Flood Warning

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

Flood Warning

25 July 2026time not reported by the sourceIndex 34 · version not recorded
Severe WeatherMedium

Flood Warning

24 July 2026time not reported by the sourceIndex 34 · version not recorded
Severe WeatherMedium

Flood Warning

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

Flood Warning

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

Flood Warning

24 July 2026time not reported by the sourceIndex 34 · version not recorded
Severe WeatherMedium

Flood Warning

24 July 2026time not reported by the sourceIndex 34 · version not recorded
Severe WeatherMedium

Flood Warning

24 July 2026time not reported by the sourceIndex 34 · version not recorded
Severe WeatherMedium

Flood Warning

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

Flash Flood Warning

24 July 2026time not reported by the sourceIndex 34 · version not recorded
Severe WeatherMedium

Flood Warning

24 July 2026time not reported by the sourceIndex 34 · version not recorded
Severe WeatherMedium

Flood Warning

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

Severe Thunderstorm Warning

13 June 2026time not reported by the sourceIndex 28 · version not recorded
Severe WeatherMedium

Severe Thunderstorm Warning

13 June 2026time not reported by the sourceIndex 34 · version not recorded
Severe WeatherMedium

Flood Warning

13 June 2026time not reported by the sourceIndex 34 · version not recorded
Severe WeatherMedium

Flood Warning

12 June 2026time not reported by the sourceIndex 34 · version not recorded
Severe WeatherMedium

Flood Warning

12 June 2026time not reported by the sourceIndex 34 · version not recorded
Severe WeatherMedium

Flood Warning

12 June 2026time not reported by the sourceIndex 34 · version not recorded
Severe WeatherMedium

Flood Warning

12 June 2026time not reported by the sourceIndex 34 · version not recorded
Severe WeatherMedium

Flood Warning

12 June 2026time not reported by the sourceIndex 34 · version not recorded
Severe WeatherMedium

Flood Warning

11 June 2026time not reported by the sourceIndex 28 · version not recorded
Severe WeatherMedium

Flood Warning

10 June 2026time not reported by the sourceIndex 28 · version not recorded
Severe WeatherMedium

Flash Flood Warning

9 June 2026time not reported by the sourceIndex 34 · version not recorded
Severe WeatherMedium

Flash Flood Warning

9 June 2026time not reported by the sourceIndex 28 · version not recorded
Severe WeatherMedium

Severe Thunderstorm Warning

9 June 2026time not reported by the sourceIndex 28 · version not recorded
Severe WeatherMedium

Severe Thunderstorm Warning

9 June 2026time not reported by the sourceIndex 34 · version not recorded
Severe WeatherMedium

Severe Thunderstorm Warning

9 June 2026time not reported by the sourceIndex 34 · version not recorded
Severe WeatherMedium

Flood Warning

5 June 2026time not reported by the sourceIndex 16 · version not recorded
Severe WeatherMedium

Flood Warning

5 June 2026time not reported by the sourceIndex 34 · version not recorded
Severe WeatherMedium

Flood Warning

5 June 2026time not reported by the sourceIndex 28 · version not recorded
Severe WeatherMedium

Flood Warning

2 June 2026time not reported by the sourceIndex 34 · version not recorded
Severe WeatherMedium

Flood Warning

1 June 2026time not reported by the sourceIndex 34 · version not recorded
Severe WeatherMedium

Flood Warning

1 June 2026time not reported by the sourceIndex 34 · version not recorded
Severe WeatherMedium

Flood Warning

31 May 2026time not reported by the sourceIndex 28 · version not recorded2 independent sources
Severe WeatherMedium

Flood Warning

31 May 2026time not reported by the sourceIndex 34 · version not recorded27 independent sources
Severe WeatherMedium

Severe Thunderstorm Warning

31 May 2026time not reported by the sourceIndex 22 · version not recorded
Severe WeatherMedium

Flood Warning

30 May 2026time not reported by the sourceIndex 28 · version not recorded

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