WUCN11 CWTO 012143

ORANGE WARNING - SEVERE THUNDERSTORM

FOR SOUTHERN ONTARIO

UPDATED BY ENVIRONMENT CANADA

AT 5:43 P.M. EDT WEDNESDAY 1 JULY 2026.

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ORANGE LEVEL WARNING - SEVERE THUNDERSTORM - FOR:

      OTTAWA NORTH - KANATA - ORLEANS

      GATINEAU

      PRESCOTT AND RUSSELL.



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IMPACT LEVEL: HIGH

FORECAST CONFIDENCE: HIGH



==DISCUSSION==



UPDATED OR ENDED BY 7:41 P.M. EDT.



AT 5:42 P.M. EDT, ENVIRONMENT CANADA METEOROLOGISTS ARE TRACKING A 

LINE OF DANGEROUS THUNDERSTORMS CAPABLE OF PRODUCING DAMAGING WIND 

GUSTS, LOONIE TO PING PONG BALL SIZE HAIL AND EXTREMELY HEAVY RAIN.



THUNDERSTORM LOCATION: FROM AREAS WEST OF OTTAWA TO NEAR GATINEAU. 



MOTION: MOVING SOUTHEASTWARD NEAR 40 KM/H 



HAZARDS: WIND: DAMAGING (90 - 110 KM/H) 

HAIL: UP TO TOONIE SIZE (UP TO 3 CM) 

RAIN: 75 MM AND LOCALLY NEAR 125 MM NEAR SOUTH OTTAWA 



DISCUSSION: A LINE OF THUNDERSTORMS WILL MOVE FROM WEST TO EAST 

ACROSS THE REGIONS AND CONTINUE EARLY THIS EVENING. 99 MILLIMETERS 

OF RAIN HAS BEEN REPORTED AT THE OTTAWA INTERNATIONAL AIRPORT AND 

MAY RECEIVE TOTAL AMOUNTS NEAR 125 MILLIMETERS BY THIS EVENING DUE 

TO SEVERAL THUNDERSTORMS. THE RAIN MAY STAY WEST OF PRESCOTT AND 

RUSSELL. 



LOCATIONS IN THE PATH: 

CONSTANCE BAY, GLENEAGLE, HEYWORTH, QUINNVILLE, CHELSEA, OLD 

CHELSEA, HOLLOW GLEN, ANGERS, DUNROBIN, KINBURN, GATINEAU, 

TEMPLETON, POINTE-GATINEAU, CUMBERLAND, KILROY CRESCENT, MARATHON 

VILLAGE, ORLEANS, HULL, BEACONWOOD, VANIER, AYLMER, CARP, BLACKBURN 

HAMLET, OTTAWA, SARSFIELD, NAVAN, MOONEYS BAY BEACH, KANATA, BELLS 

CORNERS, BOWESVILLE, STITTSVILLE, VARS, BARRHAVEN, SOUTH GLOUCESTER, 

LIMOGES, CASSELMAN, RUSSELL, EMBRUN



TRAVEL DELAYS AND/OR CANCELLATIONS ARE LIKELY. DRIVING CONDITIONS 

WILL LIKELY BE DIFFICULT. UTILITY OUTAGES ARE LIKELY. HEAVY RAIN 

WILL LIKELY CAUSE FLASH FLOODING AND SIGNIFICANT REDUCTIONS TO 

VISIBILITY. FAST-MOVING AND RAPIDLY RISING WATER CAN SWEEP VEHICLES 

AWAY AND DAMAGE INFRASTRUCTURE. TAKE IMMEDIATE COVER IF A 

THUNDERSTORM APPROACHES. IF OUTSIDE, PROTECT YOURSELF FROM FLYING 

DEBRIS AND HAIL. DON'T DRIVE THROUGH FLOODED ROADWAYS. AVOID 

LOW-LYING AREAS. 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. TO 

REPORT SEVERE WEATHER IN GATINEAU, SEND AN EMAIL TO 

ONSTORM(AT)EC.GC.CA OR POST REPORTS ON X USING (HASH)QCSTORM. 



FOR MORE INFORMATION: 

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



HTTP://WEATHER.GC.CA



END/OSPC



WUCN11 CWTO 012143

ORANGE WARNING - SEVERE THUNDERSTORM

FOR SOUTHERN ONTARIO

UPDATED BY ENVIRONMENT CANADA

AT 5:43 P.M. EDT WEDNESDAY 1 JULY 2026.

---------------------------------------------------------------------

ORANGE LEVEL WARNING - SEVERE THUNDERSTORM - FOR:

=NEW= BELLEVILLE - QUINTE - NORTHUMBERLAND

      NEWMARKET - GEORGINA - NORTHERN YORK REGION

      UXBRIDGE - BEAVERTON - NORTHERN DURHAM REGION

      INNISFIL - NEW TECUMSETH - ANGUS

      ORILLIA - LAGOON CITY - WASHAGO

      PETERBOROUGH - KAWARTHA LAKES.



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IMPACT LEVEL: HIGH

FORECAST CONFIDENCE: HIGH



==DISCUSSION==



UPDATED OR ENDED BY 7:41 P.M. EDT.



AT 5:42 P.M. EDT, ENVIRONMENT CANADA METEOROLOGISTS ARE TRACKING A 

SEVERE THUNDERSTORM CAPABLE OF PRODUCING DAMAGING WIND GUSTS AND 

HEAVY RAIN.



THUNDERSTORM LOCATION: 

COBOCONK TO NEWMARKET TO PETERBOROUGH, 



MOTION: MOVING QUICKLY TO THE EAST AT 80 KM/H 



HAZARDS: 

WIND: DAMAGING (UP TO 100 KM/H) 

THE STRONGEST WINDS MAY BE AHEAD OF THE LINE OF THUNDERSTORMS. 

RAIN: HEAVY (UP TO 30 MM) 



LOCATIONS IN THE PATH: 

NEWMARKET, KAWARTHA LAKES, LINDSAY, PETERBOROUGH, COBOURG



UTILITY OUTAGES ARE LIKELY. SIGNIFICANT DAMAGE TO BUILDINGS AND/OR 

TREES IS LIKELY. THERE IS A RISK OF SERIOUS INJURY. 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



END/OSPC