WUCN11 CWTO 231901
YELLOW WARNING - SEVERE THUNDERSTORM
FOR SOUTHERN ONTARIO
ISSUED BY ENVIRONMENT CANADA
AT 3:01 P.M. EDT SUNDAY 23 AUGUST 2026.
---------------------------------------------------------------------
YELLOW LEVEL WARNING - SEVERE THUNDERSTORM - FOR:
=NEW= CORNWALL - LANCASTER
=NEW= MAXVILLE - ALEXANDRIA.

---------------------------------------------------------------------
IMPACT LEVEL: MODERATE
FORECAST CONFIDENCE: HIGH

==DISCUSSION==

UPDATED OR ENDED BY 3:43 P.M. EDT.

AT�2:59 P.M. EDT,�A SEVERE THUNDERSTORM�IS LOCATED�OVER DUNDEE.�THIS 
SEVERE THUNDERSTORM IS MOVING NORTHEAST AT 55 KM/H.�DAMAGING WIND 
GUSTS, UP TO QUARTER SIZE HAIL AND HEAVY RAIN ARE POSSIBLE. 

LOCATIONS AND NEARBY AREAS THAT COULD BE IMPACTED INCLUDE: DUNDEE, 
SAINT-ZOTIQUE

TAKE IMMEDIATE COVER IF A THUNDERSTORM APPROACHES. IF OUTSIDE, 
PROTECT YOURSELF FROM FLYING DEBRIS AND HAIL. 

SEVERE THUNDERSTORM WARNINGS ARE ISSUED WHEN IMMINENT OR OCCURRING 
THUNDERSTORMS ARE EXPECTED TO PRODUCE DAMAGING HAIL, WIND OR RAIN. 

EMERGENCY MANAGEMENT ONTARIO RECOMMENDS THAT YOU TAKE COVER 
IMMEDIATELY IF THREATENING WEATHER APPROACHES. 

PLEASE CONTINUE TO MONITOR ALERTS AND FORECASTS ISSUED BY 
ENVIRONMENT CANADA. 

TO REPORT SEVERE WEATHER IN ONTARIO, SEND AN EMAIL TO 
ONSTORM(AT)EC.GC.CA OR POST REPORTS ON SOCIAL MEDIA USING 
(HASH)ONSTORM. 

FOR MORE INFORMATION: 
HTTPS://WWW.ONTARIO.CA/PAGE/BE-PREPARED-EMERGENCY.

HTTP://WEATHER.GC.CA

END/OSPC