Yellow Rainfall Warning Issued for Northwestern Ontario
This alert is no longer in effect.
ECCC issued it on April 26, 2026, 3 months ago. Warnings of this kind stay in effect for hours to a few days, so this page is a historical record of what was issued, not a current warning. For conditions where you are right now, check weather.gov (US), weather.gc.ca (Canada), the Met Office (UK), or the Bureau of Meteorology (Australia).
Areazine synthesizes this ECCC weather alert directly from ECCC's official public data feed. See our methodology for full source attribution and refresh cadence.
Environment Canada has issued a yellow warning for heavy rainfall in northwestern Ontario, expecting 25 to 40 mm of rain beginning late Monday afternoon and diminishing Tuesday morning.
Read this weather record in 30 seconds
- Record type
- Rainfall
- Affected area
- Northwestern Ontario
- Issued
- April 26, 2026
- Issuing authority
- ECCC
The warning type, named area, and issue time define this record. Confirm all three against the original agency notice before treating it as current.
Record status: historical. It was issued 3 months ago; use the issuing agency's live warning service for current conditions in Northwestern Ontario.
Alert Details
A yellow warning for rainfall has been issued by Environment Canada. It is in effect with a moderate severity level.
Affected Areas
The warning affects Nipigon - Rossport, much of northwestern Ontario, and regions around Lake Superior, with the highest confidence for heavy rainfall along the north shore of Lake Superior.
What You Should Do
For information concerning flooding, consult your local Conservation Authority or Ontario Ministry of Natural Resources office. Visit https://www.ontario.ca/page/floods for the latest details. Please continue to monitor alerts and forecasts issued by Environment Canada. To report severe weather, send an email to ONstorm@ec.gc.ca or post reports on X using #ONStorm.
Expected Conditions
Rainfall amounts of 25 to 40 mm are expected, at times heavy. The frozen or nearly saturated ground may reduce absorption, leading to water pooling on roads and in low-lying areas.
Timeline
The alert is effective from 2026-04-26T22:03:17-00:00 and expires on 2026-04-27T14:03:17-00:00. Rainfall is expected to begin late Monday afternoon or early evening and diminish Tuesday morning.
Original source: ECCC Official Notice ↗
Related Weather Alerts
All Weather Alerts →Nationwide notices with similar length or severity timing 8
Two Areazine-derived peer sets for this ECCC weather alert: nearest notices by body length and by same severity near the same agency date. Peers come from other categories so they are not the same-feed Related list above.
Similar body length
Nearest notices by article body length (1,147 characters here).
Similar severity timing
Same severity (medium) notices issued closest in time to April 26, 2026.
Frequently Asked Questions
Common questions about this ECCC weather alert.