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Old 09-07-2014, 01:51 AM
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Default September 5th - EF1 Udney - 17th of the year


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
                   Per hour
Six mile lake      mature trees down due to straight line winds
                   Wind speeds estimated at 90 to 110 kilometres
                   Per hour
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.

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