Sun. Aug.2, 2015 - tornado warnings. CONFIRMED: EF1 + EF2 TORNADOS

[Stormydude]

Quarter size hailstorm went through Kitchener around 6pm.

[tice23]

Another good storm heading for Goderich. The cell looks like it has a good gust front.

[DarkSky]

Well, the first set dissipated as they cross L.Ontario to the north of me. There's a nice big bow coming across now though, although I won't be able to stay awake for it to get here Maybe it'll wake me up and I'll set up the camera for some lightning shots

[tice23]

News stories are coming in now about a tornado north of shelburne at around 5pm, that was around the same area i was questioning earlier at 4:52


http://barrie.ctvnews.ca/environment...urne-1.2499309



Barrie411 on Facebook (5hours ago)

BREAKING : Reports of a Tornando Touchdown in the Dundalk area
Reports of up to 50 People injured North Dufferin Further Details to come
sorry Not Getting Any Updates at this time but i did hear all injuries are 
Minor , OPP tell me approx 6 people hurt in tent collapse on Grey Rd 8 in 
Township of Proton (Dundalk area). Victims to Markdale Hospital.

[DarkSky]

Nice light show last night around 11pm. Luckily I was up late (for me) due to a good book so I was able to watch. Photos coming.

861
WUCN11 CWTO 030144
SEVERE THUNDERSTORM WARNING
FOR SOUTHERN ONTARIO
UPDATED BY ENVIRONMENT CANADA
AT 9:44 P.M. EDT SUNDAY 2 AUGUST 2015.
---------------------------------------------------------------------
SEVERE THUNDERSTORM WARNING FOR:
=NEW= ST. THOMAS - AYLMER - EASTERN ELGIN COUNTY
=NEW= BRANTFORD - COUNTY OF BRANT
=NEW= CITY OF HAMILTON
=NEW= BURLINGTON - OAKVILLE
=NEW= HALTON HILLS - MILTON
=NEW= MISSISSAUGA - BRAMPTON
=NEW= NEWMARKET - GEORGINA - NORTHERN YORK REGION
SARNIA - PETROLIA - WESTERN LAMBTON COUNTY
WATFORD - PINERY PARK - EASTERN LAMBTON COUNTY
STRATHROY - KOMOKA - WESTERN MIDDLESEX COUNTY
LONDON - PARKHILL - EASTERN MIDDLESEX COUNTY
WOODSTOCK - TILLSONBURG - OXFORD COUNTY
CALEDON
GODERICH - BLUEWATER - SOUTHERN HURON COUNTY
STRATFORD - MITCHELL - SOUTHERN PERTH COUNTY
KITCHENER - CAMBRIDGE - REGION OF WATERLOO
GUELPH - ERIN - SOUTHERN WELLINGTON COUNTY
ORANGEVILLE - GRAND VALLEY - SOUTHERN DUFFERIN COUNTY.

SEVERE THUNDERSTORM WARNING ENDED FOR:
WINGHAM - BLYTH - NORTHERN HURON COUNTY
LISTOWEL - MILVERTON - NORTHERN PERTH COUNTY
MOUNT FOREST - ARTHUR - NORTHERN WELLINGTON COUNTY
SAUGEEN SHORES - KINCARDINE - SOUTHERN BRUCE COUNTY
HANOVER - DUNDALK - SOUTHERN GREY COUNTY.

---------------------------------------------------------------------
==DISCUSSION==

UPDATED OR ENDED BY 11:40 P.M. EDT.

AT 9:30 P.M. EDT, ENVIRONMENT CANADA METEOROLOGISTS ARE TRACKING
SEVERAL CLUSTERS OF SEVERE THUNDERSTORMS THAT CAME ASHORE FROM
SOUTHERN LAKE HURON. THEY ARE CAPABLE OF PRODUCING STRONG WIND
GUSTS, TOONIE SIZE HAIL AND TORRENTIAL RAIN IN EXCESS OF 50 MM. THEY
ARE MOVING EASTSOUTHEASTWARDS.

TAKE COVER IMMEDIATELY, IF THREATENING WEATHER APPROACHES. STRONG
WIND GUSTS CAN TOSS LOOSE OBJECTS, DAMAGE WEAK BUILDINGS, BREAK
BRANCHES OFF TREES AND OVERTURN LARGE VEHICLES. REMEMBER, SEVERE
THUNDERSTORMS CAN PRODUCE TORNADOES. GO INDOORS AND MOVE AWAY FROM
WINDOWS AND SKYLIGHTS. AVOID AREAS OF THE BUILDING THAT COULD BE
AFFECTED BY FALLING DEBRIS SUCH AS TREE LIMBS. AVOID DRIVING THROUGH
WATER ON ROADS.

THE OFFICE OF THE FIRE MARSHAL AND EMERGENCY MANAGEMENT RECOMMENDS
THAT YOU TAKE COVER IMMEDIATELY, IF THREATENING WEATHER APPROACHES.

ENVIRONMENT CANADA METEOROLOGISTS WILL UPDATE ALERTS AS REQUIRED.
PLEASE MONITOR LOCAL MEDIA OR WEATHERADIO. TO REPORT SEVERE WEATHER,
SEND AN EMAIL TO STORM.ONTARIO(AT)EC.GC.CA OR TWEET REPORTS TO
(HASH)ONSTORM.

FOR MORE INFORMATION:
HTTP://WWW.ONTARIO.CA/BEPREPARED.

HTTP://WEATHER.GC.CA/WARNINGS/INDEX(....HTML?PROV=SON

END/MSC

[DarkSky]

Some cloud / lightning shots from last night :

(This one is actually from 2 nights before) :

[DarkSky]

from: Allana K.

"Utica/Port Perry. Green-Tractors buildings. From first round of storms."

[DarkSky]

First summary from EC:

504
AWCN11 CWTO 031513
WEATHER SUMMARY FOR SOUTHERN ONTARIO AND THE
NATIONAL CAPITAL REGION ISSUED BY ENVIRONMENT CANADA
AT 11:13 A.M. EDT MONDAY 3 AUGUST 2015.

ONE OF THE MOST SIGNIFICANT SEVERE WEATHER OUTBREAKS 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 STORMS 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 STORMS, BUT
THERE WAS NO SERIOUS DAMAGE OR CONFIRMED REPORTS.

THE SECOND MAIN ESPISODE OF STORMS HIT PRIMARILY IN THE EVENING,
AFFECTING MANY OF THE SAME AREA AS THE EARLIER STORMS BUT WITH THE
ADDITION OF ALL OF SOUTHWESTERN ONTARIO. SOME TORNADIC WINDS MAY
HAVE BEEN ASSOCIATED WITH THE EVENING STORMS AS WELL.

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. ONE POTENTIAL TORNADO
REPORT NEAR TEVIOTDALE (SOUTH OF MOUNT FOREST) AROUND 9 P.M. EDT IS
BEING INVESTIGATED BY AN ENVIRONMENT CANADA SURVEY TEAM TODAY. THIS
BULLETIN WILL BE UPDATED AS FURTHER INFORMATION BECOMES AVAILABLE ON
THIS SURVEY AS WELL AS ANY OTHER SIGNIFICANT UPDATED REPORTS.

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

LOCATION EVENT DESCRIPTION

TEVIOTDALE TWO HOMES SIGNIFICANTLY DAMAGED FROM
A POSSIBLE TORNADO AROUND 9 P.M. SEVERAL ONTARIO PROVINCIAL POLICE
CARS DAMAGED AT NEABY O.P.P. DETACHMENT. 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

[DarkSky]

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

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

[DarkSky]

2nd tornado from those storms has been confirmed:

AN EF-2 TORNADO WAS CONFIRMED IN TEVIOTDALE SUNDAY EVENING WITH
WINDS OF 180 TO 220 KILOMETRES PER HOUR. THE DAMAGE PATH IS ROUGHLY 7
KILOMETRES LONG BY 200 METRES WIDE. TWO HOMES WERE SIGNIFICANTLY
DAMAGED WITH A ROOF REMOVED AND COLLAPSED WALLS. BARN DAMAGE, DOWNED
TREES, DOWNED POWER LINES AND DAMAGE TO CARS AT AN O.P.P. DETACHMENT
WERE ALSO REPORTED.

ANOTHER TORNADO CAUSED DAMAGE IN MARSVILLE, EAST GARAFRAXA. IT HAS
BEEN RATED EF-1 WITH WINDS OF 135 TO 175 KILOMETRES PER HOUR AND
HAVING A DAMAGE PATH OF ABOUT 2 KILOMETRES BY 500 METRES. THE DAMAGE
INCLUDED SNAPPED LARGE TREES, AN OVERTURNED FEED BARN, AND SOME
LIGHT DAMAGE TO BARNS AND A HOUSE.

THESE ARE THE THIRD AND FOURTH TORNADOES IN ONTARIO SO FAR THIS
SEASON. ON AVERAGE, THERE ARE 12 CONFIRMED TORNADOES IN ONTARIO PER
YEAR.