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Old 08-03-2015, 09:20 PM
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DarkSky DarkSky is offline
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Default Re: Sun. Aug.2, 2015 - tornado warnings UPDATE: EF-2 CONFIRMED TORNADO

E.C. has confirmed an EF-2 tornado :

Quote:
530
AWCN11 CWTO 032142
UPDATED WEATHER SUMMARY FOR SOUTHERN ONTARIO AND THE
NATIONAL CAPITAL REGION ISSUED BY ENVIRONMENT CANADA
AT 5:42 P.M. EDT MONDAY 3 AUGUST 2015.

CONFIRMED EF-2 TORNADO IN TEVIOTDALE WITH WINDS OF 180 TO 220
KILOMETRES PER HOUR. THE DAMAGE PATH IS ROUGHLY 7 KILOMETRES LONG BY
200 METRES WIDE.

THE MOST SIGNIFICANT SEVERE WEATHER OUTBREAK OF THE SUMMER OCCURRED
ON SUNDAY AUGUST 2 WHEN SEVERAL ROUNDS OF VIOLENT THUNDERSTORMS
CROSSED SOUTHERN ONTARIO. THE TRIGGER WAS A COMBINATION OF VERY WARM
AND HUMID CONDITIONS COUPLED WITH STRONG UPPER LEVEL WINDS AHEAD OF A
COLD FRONT. THE FIRST ROUND OF THUNDERSTORMS RAPIDLY BECAME ORGANIZED
IN THE AFTERNOON AND CAME ASHORE FROM LAKE HURON AND ACCELERATED
SOUTHEASTWARDS TOWARDS LAKE ONTARIO, CAUSING CONSIDERABLE SWATHS OF
STRAIGHT-LINE WIND DAMAGE. THERE MAY HAVE BEEN A BRIEF TORNADO OR TWO
ASSOCIATED WITH THIS FIRST BOUT OF SEVERE THUNDERSTORMS, BUT THERE
WAS NO SERIOUS DAMAGE OR CONFIRMED REPORTS.

A SECOND EPISODE OF THUNDERSTORMS HIT PRIMARILY IN THE EVENING,
AFFECTING MUCH OF THE SAME AREA AS THE EARLIER ROUND BUT WITH THE
ADDITION OF ALL OF SOUTHWESTERN ONTARIO. A PARTICUALRLY STRONG
THUNDERSTORM HIT TEVIOTDALE IN WELLINGTON COUNTY.

ENVIRONMENT CANADA SENT A SURVEY TEAM TO EXAMINE THE DAMAGE IN
TEVIOTDALE AND FOUND THE DAMAGE CONSISTENT WITH EF-2 SEVERITY ON THE
ENHANCED FUJITA SCALE. THIS IS EQUIVALENT TO WIND SPEEDS IN THE 180
TO 220 KILOMETRE PER HOUR RANGE.

MOST OF THE SEVERE WEATHER REPORTS WERE FROM STRAIGHT LINE WINDS,
WITH MANY REPORTS OF HAIL RANGING FROM DIME TO GOLF BALL SIZE. MANY
THOUSANDS OF HYDRO CUSTOMERS WERE WITHOUT POWER DUE TO SPORADIC
SWATHS OF DOWNED TREES ACROSS THE REGION. THIS BULLETIN WILL BE
UPDATED AS FURTHER INFORMATION BECOMES AVAILABLE AND OTHER DAMAGE IS
EXAMINED.

THE FOLLOWING IS A SUMMARY OF WEATHER EVENT INFORMATION RECEIVED BY
ENVIRONMENT CANADA.

LOCATION EVENT DESCRIPTION

TEVIOTDALE TWO HOMES SIGNIFICANTLY DAMAGED FROM
AN EF-2 TORNADO AROUND 9 P.M. INCLUDING ROOF REMOVED FROM ONE
BUNGALOW HOME AND TWO WALLS COMPLETELY COLLAPSED. SEVERAL ONTARIO
PROVINCIAL POLICE CARS DAMAGED AT NEARBY O.P.P. DETACHMENT.
SOME DAMAGE TO BARNS AND DOWNED TREES AND POWER LINES ON
NEIGHBOURING CONCESSION ROADS.

WIARTON 78 MM OF RAIN

COVE ISLAND (NEAR TOBERMORY) PEAK WIND 104 KILOMETRES PER HOUR
(12:32 P.M.)

UXBRIDGE PEAK WIND 96 KILOMETRES PER HOUR
(5:26 P.M.)

PEARSON AIRPORT PEAK WIND 94 KILOMETRES PER HOUR
(5:44 P.M.)

OSHAWA AIRPORT PEAK WIND 89 KILOMETRES PER HOUR
(5:45 P.M.)

GRAND BEND ESTIMATED PEAK WIND 110 KILOMETRES PER
HOUR (NEAR 8 P.M.)

PLEASE NOTE THAT THIS SUMMARY MAY CONTAIN PRELIMINARY OR UNOFFICIAL
INFORMATION AND DOES NOT CONSTITUTE A COMPLETE OR FINAL REPORT.

END

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