Yellow Rainfall Warning in Effect for Thunder Bay
This alert is no longer in effect.
ECCC issued it on April 28, 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 Thunder Bay, with amounts of 25 to 40 mm expected to end this morning, potentially leading to localized flooding and impassable roads.
Read this weather record in 30 seconds
- Record type
- Rainfall
- Affected area
- Thunder Bay, Ontario
- Issued
- April 28, 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 Thunder Bay, Ontario.
Alert Details
Environment Canada has issued a yellow warning for rainfall, classified as severe. This alert is in effect and will expire later today.
Affected Areas
The warning affects the City of Thunder Bay. Areas near Lake Nipigon may experience related conditions.
What You Should Do
Monitor alerts and forecasts from Environment Canada. For flooding information, consult your local Conservation Authority or Ontario Ministry of Natural Resources office. Report severe weather by emailing ONstorm@ec.gc.ca or posting on X with #ONStorm.
Expected Conditions
Rainfall amounts of 25 to 40 mm are anticipated. Areas near Lake Nipigon may transition to snow this morning. Localized flooding is possible, and some roads may become impassable.
Timeline
The alert is effective from 2026-04-28T08:53:02-00:00 and expires on 2026-04-28T18:02:02-00:00, with rainfall ending this 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 (899 characters here).
Similar severity timing
Same severity (high) notices issued closest in time to April 28, 2026.
Frequently Asked Questions
Common questions about this ECCC weather alert.