781
WUCN11 CWTO 211940
YELLOW WARNING - SEVERE THUNDERSTORM
FOR SOUTHERN ONTARIO
UPDATED BY ENVIRONMENT CANADA
AT 3:40 P.M. EDT TUESDAY 21 JULY 2026.
---------------------------------------------------------------------
YELLOW LEVEL WARNING - SEVERE THUNDERSTORM - FOR:
SIMCOE - DELHI - NORFOLK
WOODSTOCK - TILLSONBURG - OXFORD COUNTY.
YELLOW LEVEL WARNING - SEVERE THUNDERSTORM - ENDED FOR:
ST. THOMAS - AYLMER - EASTERN ELGIN COUNTY.
---------------------------------------------------------------------
IMPACT LEVEL: MODERATE
FORECAST CONFIDENCE: HIGH
==DISCUSSION==
UPDATED OR ENDED BY 5:39 P.M. EDT.
AT 3:40 P.M. EDT, ENVIRONMENT CANADA METEOROLOGISTS ARE TRACKING A
SEVERE THUNDERSTORM CAPABLE OF PRODUCING HEAVY RAIN.
THUNDERSTORM LOCATION: NEAR CULTUS
MOTION: MOVING QUICKLY TO THE SOUTHEAST AT 70 KM/H
HAZARDS:
RAIN: HEAVY (50 MM)
LOCATIONS IN THE PATH:
DELHI
SIMCOE
PORT DOVER
HEAVY RAIN MAY CAUSE FLASH FLOODING AND SIGNIFICANT REDUCTIONS TO
VISIBILITY.
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