Squall Warning in Effect for Prescott to Cornwall
This alert is no longer in effect.
ECCC issued it on August 13, 2026, 10 days 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 squall warning for the Prescott to Cornwall area due to thunderstorms with wind gusts up to 40 knots and poor visibility.
Read this weather record in 30 seconds
- Record type
- Squall Warning
- Affected area
- Prescott to Cornwall, Ontario
- Issued
- August 13, 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 10 days ago; use the issuing agency's live warning service for current conditions in Prescott to Cornwall, Ontario.
Alert Details
Environment Canada has issued a squall warning. The alert is effective from 2026-08-13T03:23:41-00:00 until 2026-08-13T06:00:41-00:00.
Affected Areas
The warning covers the Prescott to Cornwall region.
What You Should Do
Proceed with caution as visibility may suddenly be reduced to near-zero. Poor to very poor visibility may contribute to voyage delays and make marine navigation hazardous. Continue to monitor alerts and forecasts issued by Environment Canada. For more information, monitor Canadian Coast Guard radio or Weatheradio stations.
Expected Conditions
Squalls with wind gusts up to 40 knots, frequent lightning and poor to very poor visibility in thunderstorms heavy at times are expected or occurring. These clusters of thunderstorms are tracking eastwards at 20 knots.
Timeline
The warning is effective immediately and expires at 2026-08-13T06:00:41-00:00.
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 (905 characters here).
Similar severity timing
Same severity (high) notices issued closest in time to August 13, 2026.
Frequently Asked Questions
Common questions about this ECCC weather alert.