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Old 08-22-2011, 08:37 PM
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DarkSky DarkSky is offline
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Default Re: Goderich F3 tornado - August 21, 2011

Code:
 455 
 AWCN11 CWTO 222202
 UPDATED WEATHER SUMMARY FOR ALL OF SOUTHERN ONTARIO AND THE
 NATIONAL CAPITAL REGION ISSUED BY ENVIRONMENT CANADA
 AT 5:57 PM EDT MONDAY 22 AUGUST 2011.

-------------------------------------------------------------
 ==WEATHER EVENT DISCUSSION==

A SERIES OF SEVERE THUNDERSTORMS AFFECTED SOUTHERN ONTARIO ON SUNDAY
 AFTERNOON, ASSOCIATED WITH A SHARP COLD FRONT.

ENVIRONMENT CANADA HAS CONFIRMED THAT, AT APPROXIMATELY 4:00 PM
 SUNDAY, A TORNADO TRACKED FROM THE LAKE HURON SHORELINE THROUGH
 GODERICH AND SOUTHEASTWARD TO JUST EAST OF SUMMERHILL. A SURVEY TEAM
 HAS COMPLETED AN ASSESSMENT OF THE DAMAGE AND HAS RATED THE TORNADO
 AS FUJITA SCALE THREE, WITH PEAK WIND SPEEDS ESTIMATED AT 280 KM/H.
 THE LENGTH OF THE TORNADO DAMAGE TRACK WAS APPROXIMATELY 20 KM, WITH
 A WIDTH OF DAMAGE THAT VARIED FROM AS WIDE AS 1.5 KM IN GODERICH TO
 LESS THAN 200 M FURTHER TO THE SOUTHEAST. THE SURVEY TEAM HAS
 REPORTED THAT THE MOST EXTENSIVE DAMAGE WAS IN DOWNTOWN GODERICH,
 INCLUDING SIGNIFICANT STRUCTURAL DAMAGE TO BUILDINGS, ROOFS REMOVED,
 MULTIPLE VEHICLES OVERTURNED AND DESTROYED AND NUMEROUS TREES DOWN.
 THERE IS ONE REPORTED FATALITY AND APPROXIMATELY 40 INJURIES. THE
 LAST CONFIRMED FUJITA SCALE THREE TORNADO TO OCCUR IN ONTARIO WAS ON
 APRIL 20TH, 1996 WHEN TWO FUJITA SCALE THREE TORNADOES OCCURED (ONE
 FROM WILLIAMSFORD TO BLANTYRE, THE OTHER FROM ARTHUR TO VIOLET  HILL).

ELSEWHERE OVER SOUTHERN ONTARIO ON SUNDAY, THERE WERE ALSO REPORTS
 OF TORRENTIAL DOWNPOURS, LARGE HAIL AND DAMAGING WINDS OVER SEVERAL
 AREAS EXTENDING FROM GODERICH THROUGH THE GREATER TORONTO AREA AND
 EAST TOWARDS THE ST LAWRENCE RIVER. REPORTS OF DAMAGE IN GANANOQUE
 AT AROUND 12:45 PM, ALONG WITH ASSOCIATED EYE WITNESS REPORTS OF
 FUNNEL CLOUDS, SUGGEST A BRIEF TORNADO MAY HAVE OCCURED THERE AS
 WELL, ALTHOUGH THIS HAS YET TO BE CONFIRMED BY ENVIRONMENT CANADA
 AND CONTINUES TO BE INVESTIGATED.

FOLLOWING ARE SOME OF THE REPORTS OF WEATHER AND DAMAGE RECEIVED BY
 ENVIRONMENT CANADA AS OF 6:00 PM MONDAY.

-------------------------------------------------------------
 LOCATION             TIME       WEATHER/DAMAGE REPORT

GANANOQUE           12:45 PM    SEVERAL TREES DOWN DAMAGE TO ABOVE
                                 GROUND POOL AND ROOF FEW POWER LINES
                                 DOWN

BRAMPTON             2:30 PM    HEAVY RAIN AND INTENSE SMALL HAIL
                      3:00 PM    19 MM RAIN IN 10 MINUTES


TORONTO              2:40 PM    EST. GUST 80 TO 100 KM/H
                                 FLOODING OVER HWY 401 NEAR YORKDALE
                                 FLOODING ON DONWAY WEST


TORONTO EAST YORK    2:55 PM    WIND GUST 72.4 KM/H,
                                 43.6 MM IN 10 MIN

GODERICH AIRPORT     4:00 PM    GUST TO 87 KM/H

GODERICH             4:00 PM    SEVERAL ROOFS REMOVED FROM BUILDINGS
                                 AND WALLS CRUMBLED. STRUCTURAL
                                 DAMAGE TO ARENA, FACTORIES AND
                                 HOUSES. REPORT OF 1 FATALITY, NUMBER
                                 OF PEOPLE INJURED. GRAIN ELEVATOR
                                 DAMAGED SEVERAL TREES DOWN
                                 NUMEROUS CARS DAMAGED.

STRATFORD            4:45 PM    VERY LARGE HAIL REPORTED


THIS WEATHER SUMMARY CONTAINS PRELIMINARY INFORMATION
 AND MAY NOT CONSTITUTE AN OFFICIAL OR FINAL REPORT.

END/OSPC
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