Code:
WEATHER SUMMARY FOR ALL OF SOUTHERN ONTARIO AND
THE NATIONAL CAPITAL REGION
ISSUED BY ENVIRONMENT CANADA TORONTO
AT 4:33 AM EDT FRIDAY 4 SEPTEMBER 2009.
-------------------------------------------------------------
==WEATHER EVENT DISCUSSION==
..ANOTHER TORNADO CONFIRMED FROM AUGUST 20TH OUTBREAK..
AN ENVIRONMENT CANADA DAMAGE SURVEY TEAM CONDUCTED A GROUND AND
AERIAL SURVEY THURSDAY IN PORTIONS OF THE OTONABEE - SOUTH MONAGHAN
TOWNSHIP. THE TEAM HAS CONFIRMED THAT AN F1 TORNADO BEGAN ON THE
NORTH SIDE OF RICE LAKE NEAR THE INDIAN RIVER AND THEN MOVED
NORTHEASTWARDS TOWARDS THE BLEZARD AREA. THIS AREA IS ABOUT 15 KM
SOUTHEAST OF PETERBOROUGH. THE DAMAGE TRACK WAS INTERMITTENT AND
APPROXIMATELY 12 KM LONG. AN F1 TORNADO HAS PEAK WINDS BETWEEN 120
AND 170 KM/H.
THE TOTAL NUMBER OF TORNADOES FOR AUGUST 20TH IS NOW 13 WITH 11
CONFIRMED AND TWO PROBABLE TORNADOES. FOUR OF THESE TORNADOES
WERE RATED F2. WITH THE ADDITION OF THESE 13 CONFIRMED/PROBABLE
TORNADOES THE TOTAL NUMBER OF TORNADOES FOR THE SEASON SO FAR STANDS
AT 22. IN AN AVERAGE YEAR ONTARIO HAS 11 TORNADOES. THE LAST TIME WE
HAD MORE THAN 2 TORNADOES ON ONE DAY THAT WERE F2 OR HIGHER WAS MAY
31, 1985. ON THAT DAY, THERE WERE 12 F2 TORNADOES OR HIGHER. THE
GREATEST NUMBER OF TORNADO EVENTS IN ONE YEAR IS 29 IN 2006. THE
SUMMER SEVERE WEATHER SEASON NORMALLY BEGINS IN LATE APRIL AND
CONTINUES UNTIL EARLY OCTOBER.
ENVIRONMENT CANADA CONTINUES TO RECEIVE REPORTS CONCERNING THE
EVENTS OF AUGUST 20TH. FUTURE STORM SUMMARIES WILL BE ISSUED AS
REQUIRED OVER THE COURSE OF THE COMING DAYS.
---------------------------------------------------------------
DATE
TORNADO LOCATION/PATH DAMAGE OVERVIEW
TORNADO 1 14 KM SW OF DURHAM TO MARKDALE F2 TORNADO DAMAGE
(CONFIRMED) (ROUGHLY 36 KM) (SIGNIFICANT HOUSE
+ TRAILER DAMAGE,
TREES DOWN)
TORNADO 2 FROM SOUTH OF THORNBURY TO THE F2 TORNADO DAMAGE
(CONFIRMED) SOUTHEAST OF THORNBURY (MANY TREES SNAPPED,
(INTERMITTENT DAMAGE PATH OF GEORGIAN PEAKS SUSTAINED
OF 9 KM) DAMAGE, ROOFS REMOVED,
HOMES DAMAGED)
TORNADO 3 WOODBRIDGE (SOUTHWESTERN F2 TORNADO DAMAGE
(CONFIRMED) VAUGHAN) (DOZENS OF HOMES
(3.5 KM LONG & 100 METRES WIDE) SIGNIFICANTLY DAMAGED,
TREES DOWN, CARS FLIPPED)
TORNADO 4 MAPLE (NORTHEASTERN VAUGHAN) F2 TORNADO DAMAGE
(CONFIRMED) (2.7 KM LONG & 100 METRES WIDE) (DOZENS OF HOMES
SIGNIFICANTLY DAMAGED,
TREES DOWN)
TORNADO 5 NEWMARKET AREA F1 TORNADO DAMAGE
(CONFIRMED) (HOCKEY ARENA ALMOST
DEMOLISHED, ROYAL
CANADIAN RIDING ACADEMY
SUSTAINED DAMAGE)
TORNADO 6 GRAVENHURST AREA F0 TORNADO DAMAGE
(CONFIRMED) (PATH ABOUT 10 KM LONG (SHALLOW ROOTED
AND UP TO 1 KM WIDE) TREES DOWN)
TORNADO 7 MILTON F1 TORNADO DAMAGE
(CONFIRMED) (LIGHT STANDARDS DOWN,
ROOF DAMAGE OF MEDICAL
CENTRE AND NEARBY HOTEL,
TREES AND FENCES DOWN,
MINOR HOME DAMAGE)
TORNADO 8 HALIBURTON FOREST AND WILDLIFE F1 TORNADO DAMAGE (VERY
(CONFIRMED) CENTRE(NORTHWEST OF HALIBURTON) LARGE SWATH OF TREES
DAMAGED)
TORNADO 9 REDSTONE LAKE F0 TORNADO DAMAGE
(CONFIRMED) (MINOR ROOF DAMAGE)
TORNADO 10 NEW LOWELL TO EDENVALE F1 TORNADO DAMAGE
(CONFIRMED) (WEST OF BARRIE) (TWO ROOFS PARTIALLY
(PATH 12.6 KM LONG) REMOVED, FARM SHED
COLLAPSED, 1000 POUND
TRAILER MOVED 300 FT)
TORNADO 11 ARNSTEIN AREA F1 TORNADO DAMAGE
(PROBABLE) WATERSPOUT/TORNADO
SIGHTINGS (LARGE SWATH
OF TREE DAMAGE, SHED
MOVED, MINOR HOUSE
DAMAGE)
TORNADO 12 BANCROFT/CARLOW MAYO AREA F1 TORNADO DAMAGE
(PROBABLE) (SE OF BANCROFT) FUNNEL CLOUD SIGHTING
(LARGE AREAS OF TREE
DAMAGE)
TORNADO 13 RICE LAKE F1 TORNADO DAMAGE
(CONFIRMED) (SE OF PETERBOROUGH) (ROOF, TREE DAMAGE)
END/OSPC