Severe Weather in Ottawa, United States
10 — recorded here, since 15 May 2026
No events recorded in the last 30 days. Most recent: 26 July 2026 (37 days ago).
The 10th strongest of the 10 recorded here since 15 May 2026.
By month
- April 20261
- May 202635
- June 202622
- July 202612
- August 20265
May 2026 is the most active month of the 5 in our series here, with 35 events.
Recent events
- Flood Warning26 July 202602:34 UTCmediumCS 28
- Flood Warning25 July 202616:24 UTCmediumCS 34
- Flood Warning24 July 202623:24 UTCmediumCS 34
- Severe Thunderstorm Warning13 June 202622:59 UTCmediumCS 34
- Flood Warning12 June 202619:03 UTCmediumCS 34
- Flood Warning5 June 202623:21 UTCmediumCS 34
- Flood Warning2 June 202603:41 UTCmediumCS 34
- Flood Warning1 June 202614:27 UTCmediumCS 34
- Tornado Warning18 May 202619:17 UTCcriticalCS 583 independent sources
- Severe Thunderstorm Warning15 May 202600:31 UTCmediumCS 342 independent sources