AWCN11 CWTO 202222 SPECIAL WEATHER SUMMARY FOR ALL OF SOUTHERN ONTARIO AND THE NATIONAL CAPITAL REGION ISSUED BY ENVIRONMENT CANADA TORONTO AT 3:56 PM EDT SATURDAY 20 AUGUST 2005. CONFIRMED TORNADOES OVER SOUTH CENTRAL ONTARIO ON FRIDAY AUGUST 19. ------------------------------------------------------------- ==WEATHER EVENT DISCUSSION== SEVERE THUNDERSTORM ACTIVITY ASSOCIATED WITH A WARM FRONT TRACKED FROM SOUTHWESTERN ONTARIO INTO SOUTHCENTRAL ONTARIO FRIDAY AFTERNOON. THE STRONGEST SEVERE THUNDERSTORM WAS LONG LIVED AND TRACKED FROM MILVERTON TO JUST NORTH OF FERGUS AND ACROSS BRAMPTON AND THE NORTHERN PART OF TORONTO THEN EAST TO OSHAWA. IT LEFT A TRAIL OF DAMAGE IN ITS WAKE WITH MANY AREAS RECEIVING EXCESSIVE RAINFALLS AS WELL AS TWO DISTINCT TORNADOES AND SOME LOCALLY LARGE HAIL. ENVIRONMENT CANADA CONDUCTED COMPREHENSIVE DAMAGE SURVEYS OF THE AFFECTED AREAS THIS AFTERNOON AND HAVE CONFIRMED THAT TWO SEPARATE TORNADOES OCCURRED. BOTH TORNADOES WERE ASSOCIATED WITH THE SINGLE LONG LIVED STORM AND ESTIMATED TO RANK AS F2 ON THE FUJITA SCALE WITH WINDS OF 180 TO 250 KM/H. THE FOLLOWING IS AN UPDATED LIST OF DAMAGE REPORTS RECEIVED AS OF 4 PM THIS AFTERNOON. ------------------------------------------------------------- DATE TIME(LCL) LOCATION EVENT DESCRIPTION 12:50 PM - MILVERTON TO INTERMITTENT F2 TORNADIC DAMAGE PATH 1:20 PM CONESTOGO LAKE 25 KM LONG AND UP TO 1 KM WIDE. (WEST OF 28 FOOT MOTOR HOME CARRIED 50 FEET. ELMIRA) NUMEROUS TREES DOWN. COTTAGES DAMAGED. BARNS DETROYED 1:30 PM - SALEM TO F2 TORNADIC DAMAGE PATH 10 KM LONG 1:45 PM BELLWOOD LAKE AND UP TO 1 KM WIDE. DEPARTMENT OF (NORTH OF WORKS BUILDING SEVERELY DAMAGED IN FERGUS) SALEM WITH ROOF CARRIED 750 METRES. BARNS/SILO DESTROYED AND TRACTORS LIFTED. NUMEROUS TREES DOWN. HOUSE SEVERELY DAMAGED NORTH OF FERGUS WITH ROOF LIFTED OFF. CAR ROLLED. DAMAGED TRACTOR TRAILOR. LIVESTOCK KILLED 2:30-3 PM BRAMPTON TORRENTIAL RAIN AND FLOODING WITH ABOUT 100 MM RAIN 3:15-4 PM TORONTO SEVERE FLOODING AND QUARTER TO POSSIBLY GOLF BALL SIZE HAIL. LOCALIZED TREES DOWN DUE TO BRIEF STRONG STRAIGHT-LINE WINDS 3:30 PM ENVIRONMENT 136 MM OF RAIN AT THE ONTARIO STORM CANADA PREDICTION CENTRE WITH FLOODING DOWNSVIEW 3:15-4 PM TORONTO (YONGE 175 MM RAIN WITH FLOODING (AND STEELES) 4 - 4.30 PM AJAX TO OSHAWA TORRENTIAL RAIN AND FLASH FLOODING 5.30 PM HAMILTON QUARTER-SIZED HAIL. FUNNEL CLOUDS SIGHTED AND A FEW TREES DOWN ------------------------------------------------------------- CODE: SN= SNOW LT= LIGHTNING BZ= BLIZZARD DW= DAMAGING WINDS SQ= SNOWSQUALL HA= HAIL FR= FREEZING RAIN TO= TORNADO FD= FREEZING DRIZZLE WS= WATERSPOUT IP= ICE PELLETS HR= HEAVY RAINFALL FZ= FLASH FREEZE HH= HIGH HUMIDITY WC= WIND CHILL XH= EXTREME HEAT HW= HIGH WINDS DD= DUST DEVIL PLEASE NOTE THAT THIS SUMMARY CONTAINS THE OBSERVATIONS AT THE TIME OF BROADCAST AND DOES NOT CONSTITUTE AN OFFICIAL AND FINAL REPORT OF THE WEATHER EVENTS OR THE HIGH IMPACT EVENTS ATTRIBUTED TO THE WEATHER EVENTS. END/ASHTON