180
WUCN11 CWTO 232107
SEVERE THUNDERSTORM WARNING
FOR SOUTHERN ONTARIO
ISSUED BY ENVIRONMENT CANADA
AT 5:07 P.M. EDT TUESDAY 23 SEPTEMBER 2025.
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SEVERE THUNDERSTORM WARNING FOR:
=NEW= VAUGHAN - RICHMOND HILL - MARKHAM.
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==DISCUSSION==
UPDATED OR ENDED BY 7:05 P.M. EDT.
AT 5:06 P.M. EDT, ENVIRONMENT CANADA METEOROLOGISTS ARE TRACKING A
SEVERE THUNDERSTORM CAPABLE OF PRODUCING HEAVY RAIN.
THIS SEVERE THUNDERSTORM IS LOCATED NEAR MAPLE, MOVING SOUTHEAST AT
10 KM/H.
HAZARD:
HEAVY RAINFALL WITH LOCAL AMOUNTS OF 50 TO 75 MM
LOCATIONS IMPACTED INCLUDE:
RICHMOND HILL, KLEINBURG, MAPLE, KING CREEK, LASKAY AND PURPLEVILLE.
HEAVY RAIN MAY CAUSE FLASH FLOODING AND SIGNIFICANT REDUCTIONS TO
VISIBILITY. TAKE IMMEDIATE COVER IF A THUNDERSTORM APPROACHES. IF
OUTSIDE, PROTECT YOURSELF FROM FLYING DEBRIS AND HAIL. DON'T DRIVE
THROUGH FLOODED ROADWAYS.
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 X USING (HASH)ONSTORM.
FOR MORE INFORMATION:
HTTPS://WWW.ONTARIO.CA/PAGE/BE-PREPARED-EMERGENCY.
HTTP://WEATHER.GC.CA
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