Updated weather summary for Southern Ontario and the
National Capital Region issued by Environment Canada
At 9:00 P.M. EDT Saturday 6 September 2014.
On Friday the 5th of September a warm southerly flow with high heat
and humidity was followed by a cold front that swept across Southern
Ontario. Numerous reports of severe weather due to strong
thunderstorms were received. In addition, an ef1 tornado was
confirmed east of Orillia.
Storm damage survey crews were sent out to assess the damage from
yesterday's storms. In Orillia, the damage was found to be
Consistent with a downburst having wind speeds in the range of 110
To 130 kilometres per hour. Just east of Orillia in the town of
udney, a barn, clubhouse and drive shed were all destroyed.
Assessment of the damage in udney revealed that it was caused by an
ef1 tornado. Ef1 tornadoes have wind speeds between 135 and 175
kilometres per hour. In the vicinity of six mile lake, damage
Was due to straight line winds with speeds in the range of 90 to 110
kilometres per hour. Investigators in the London area found straight
line wind damage with no evidence of a tornado. This bulletin will
Be updated with any significant damage reports.
The following is a summary of weather event information received by
Environment Canada as of 7:00 P.M. Saturday.
Location event description
Udney barn, drive shed and clubhouse destroyed.
Confirmed ef-1 tornado
Orillia north trees and power poles down due to a downburst
Wind speeds estimated at 110 to 130 kilometres
Six mile lake mature trees down due to straight line winds
Wind speeds estimated at 90 to 110 kilometres
Hungry bay road mature trees down due to straight line winds
Christian Island mature trees and power poles down
Ethel mature trees down, barn and house damage
London tree damage due to straight line winds
Cottam barn destroyed
Amherstburg barn damaged, tops off trees
Orillia 28 millimetre diametre hail at 2 P.M. Friday
Cookstown 20 millimetre diametre hail at 8 P.M. Friday
St. Thomas 124.2 millimetres of rain to 10 P.M. Friday
Balaclava 48.2 millimetres of rain to 11 P.M. Friday
Grand Bend 89 millimetres of rain to 4 A.M. Saturday
Exeter 62 millimetres of rain to 6 A.M. Saturday
Milverton 82 millimetres of rain to 8 A.M. Saturday
London Airport 53 millimetres of rain to 8 A.M. Saturday
Waterloo Airport 50.8 millimetres of rain to 8 A.M. Saturday
Hamilton Airport 42 millimetres of rain to 8 A.M. Saturday
Tillsonburg 73.8 millimetres of rain to 9 A.M. Saturday
furgus 76.4 millimetres of rain to 9 A.M. Saturday
Barrie landfill 42.9 millimetres of rain to 9 A.M. Saturday
Windsor Airport 93 kilometre per hour wind gust at 8 P.M. Friday
Lagoon City 85 kilometre per hour wind gust at 7 P.M. Friday
Please note that this summary may contain preliminary or unofficial
information and does not constitute a complete or final report.