Fog Advisory in Effect for St. Catharines and Northern Niagara Region
This alert is no longer in effect.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 moderate fog advisory for St. Catharines, Grimsby, and the Northern Niagara Region, warning of near zero visibility due to dense fog that may persist into early Sunday morning.
Read this weather record in 30 seconds
- Record type
- Fog Advisory
- Affected area
- St. Catharines - Grimsby - Northern Niagara Region
- 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 St. Catharines - Grimsby - Northern Niagara Region.
Alert Details
Environment Canada has issued a yellow advisory for fog, classified as a fog event with moderate severity. The alert is in effect and was issued by Environment Canada.
Affected Areas
The advisory affects St. Catharines, Grimsby, and the Northern Niagara Region.
What You Should Do
Residents should 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
Near zero visibility in fog is expected, with locally dense fog that will persist into early Sunday morning before dissipating. Visibility will likely be suddenly reduced at times.
Timeline
The alert is effective from 2026-04-26T04:44:28-00:00 and expires on 2026-04-26T13:59:28-00:00.
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 (804 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.