882
WUCN11 CWTO 122053
YELLOW WARNING - SEVERE THUNDERSTORM
FOR SOUTHERN ONTARIO
UPDATED BY ENVIRONMENT CANADA
AT 4:53 P.M. EDT WEDNESDAY 12 AUGUST 2026.
---------------------------------------------------------------------
YELLOW LEVEL WARNING - SEVERE THUNDERSTORM - FOR:
HALTON HILLS - MILTON
GUELPH - ERIN - SOUTHERN WELLINGTON COUNTY.
---------------------------------------------------------------------
IMPACT LEVEL: MODERATE
FORECAST CONFIDENCE: HIGH
==DISCUSSION==
UPDATED OR ENDED BY 5:50 P.M. EDT.
AT 4:51 P.M. EDT, A SEVERE THUNDERSTORM IS LOCATED OVER CENTRE
INN. THIS SEVERE THUNDERSTORM IS MOVING EAST AT 25 KM/H. DAMAGING
WIND GUSTS, UP TO QUARTER SIZE HAIL AND HEAVY RAIN ARE POSSIBLE.
LOCATIONS AND NEARBY AREAS THAT COULD BE IMPACTED INCLUDE: GUELPH,
ROCKWOOD, EDEN MILLS, ABERFOYLE, HALTON HILLS
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.
THERE IS A RISK OF INJURY. IF YOU HEAR ROARING WIND, SEE A FUNNEL
CLOUD, FLYING DEBRIS, OR ANY THREATENING WEATHER APPROACHING, TAKE
SHELTER IMMEDIATELY. LARGE HAIL MAY CAUSE SIGNIFICANT DAMAGE AND
INJURY. DAMAGE TO ROOFS, FENCES, SOFT SHELTERS OR TREES IS LIKELY.
SEVERE THUNDERSTORMS CAN PRODUCE TORNADOES.
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
CLICK HERE TO GO TO PREVIOUS BULLETINS.
Main Text Page