159
WUCN11 CWTO 031839
YELLOW WARNING - SEVERE THUNDERSTORM
FOR SOUTHERN ONTARIO
UPDATED BY ENVIRONMENT CANADA
AT 2:39 P.M. EDT FRIDAY 3 JULY 2026.
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YELLOW LEVEL WARNING - SEVERE THUNDERSTORM - FOR:
=NEW= UXBRIDGE - BEAVERTON - NORTHERN DURHAM REGION
VAUGHAN - RICHMOND HILL - MARKHAM
NEWMARKET - GEORGINA - NORTHERN YORK REGION
PICKERING - OSHAWA - SOUTHERN DURHAM REGION
INNISFIL - NEW TECUMSETH - ANGUS.
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IMPACT LEVEL: MODERATE
FORECAST CONFIDENCE: HIGH
==DISCUSSION==
UPDATED OR ENDED BY 4:37 P.M. EDT.
AT 2:38 P.M. EDT, ENVIRONMENT CANADA METEOROLOGISTS ARE TRACKING A
SEVERE THUNDERSTORM CAPABLE OF PRODUCING DAMAGING WIND GUSTS, UP TO
QUARTER SIZE HAIL AND HEAVY RAIN.
THUNDERSTORM LOCATION:
BOND HEAD TO STOUFFVILLE
MOTION: MOVING EAST AT 50 KM/H
HAZARDS:
WIND: STRONG (UP TO 90 KM/H)
HAIL: UP TO QUARTER SIZE (UP TO 2.5 CM)
LOCATIONS IN THE PATH:
AJAX, AURORA, WHITBY, OSHAWA, NEWMARKET
SOME TRAVEL DELAYS ARE LIKELY. DRIVING CONDITIONS WILL LIKELY BE
DIFFICULT. TAKE IMMEDIATE COVER IF A THUNDERSTORM APPROACHES. IF
OUTSIDE, PROTECT YOURSELF FROM FLYING DEBRIS AND HAIL. WHEN THUNDER
ROARS, GO INDOORS(EXCLAMATION MARK) LIGHTNING KILLS AND INJURES
CANADIANS EVERY YEAR. 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 X USING (HASH)ONSTORM.
FOR MORE INFORMATION:
HTTPS://WWW.ONTARIO.CA/PAGE/BE-PREPARED-EMERGENCY.
HTTP://WEATHER.GC.CA
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