Jul.27, 2014 - tornado warning

[tice23]

i dont think the canadian sites have historic base velocity data available yet, they should have some radar loops on environment canadas web site,

you could try the NOAA's web site, they have all their maps accessible in archives that they email to you, you may need to download a viewer from their site too if i remember correctly, but the buffalo radar site's viewing range should just include newton ontario on the far left. you have to wait 24-48 hours after for it to be available but if you search the ranges from 22:00-23:00 UTC it should give you the data you want.

https://www.ncdc.noaa.gov/nexradinv/

[tice23]

Here's some images of the storm and damage from grand bend


Taken by James Smith


Taken by Ryan Bell


Taken by Kristylee Varley

[tice23]

Weather summary for ontario: Grand Bend EF1 confirmed

Updated weather summary for Southern Ontario and the
National Capital Region issued by Environment Canada
At 5:10 P.M. EDT Monday 28 July 2014.

Eighth tornado of the season in Ontario.

Between 6 and 7 PM EDT Sunday evening a strong thunderstorm moved 
over the area a few kilometres to the south of Grand Bend. An 
Environment Canada storm investigation team has confirmed that the 
thunderstorm generated an enhanced Fujita scale one (ef1) tornado 
with peak winds between 155 and 175 kilometres per hour. The enhanced 
Fujita scale runs from zero (weakest) to 5 (strongest). The storm 
investigators found a number of trees uprooted or snapped off and 
damage to some hydro poles as well along the damage track. There
Has also been a report of one serious injury due to a fallen
Tree at the north end of Pinery Provincial Park along the damage 
path. The track of the damage was 500 metres at its widest and the 
length of the damage was estimated to be about 5 kilometres.

This is Ontario's eighth tornado of the season. Ontario confirms an 
average of 12 tornadoes each year during a season that runs from late 
April to early October.

In addtion, thunderstorms produced torrential downpours which 
affected many portions of Southern Ontario late Sunday afternoon and 
into the night. This prompted Environment Canada to issue several 
severe thunderstorm warnings as well as a few tornado warnings.
There were numerous reports of heavy rainfall totals in areas 
stretching from Southwestern Ontario towards the Golden Horseshoe.
In addition, a few hail and wind damage reports were received.

The following is a summary of the more significant rainfall totals 
received by Environment Canada as of 2.00 PM. EDT.

Location             total rainfall amount in millimetres
Windsor Airport                     47  (quarter sized hail as well) 
Kitchener Airport                   71
Delhi                               59
Vineland                           110
St. Catharines                      55
Grimsby                             59
Buttonville Airport                 86
Woodbridge                          61
Hamilton Airport                    73

The following are courtesy of the grand river conservation authority

Location             total rainfall amount in millimetres
Burford                            119
Bridgeport                          50
Luther                              71
Arthur                              79
Wellesley                           55
Millbank                            60
Paris                               63
Brantford                           53

The following are courtesy of Toronto region conservation authority

Location             total rainfall amount in millimetres
G ross lord dam                     75
Oak Ridges                          80

Please note that this summary may contain preliminary or unofficial 
information and does not constitute a complete or final report.

End

[DarkSky]

8th tornado of the season confirmed:

098 
AWCN11 CWTO 282110
UPDATED WEATHER SUMMARY FOR SOUTHERN ONTARIO AND THE
NATIONAL CAPITAL REGION ISSUED BY ENVIRONMENT CANADA
AT 5:10 P.M. EDT MONDAY 28 JULY 2014.

EIGHTH TORNADO OF THE SEASON IN ONTARIO.

BETWEEN 6 AND 7 PM EDT SUNDAY EVENING A STRONG THUNDERSTORM MOVED
OVER THE AREA A FEW KILOMETRES TO THE SOUTH OF GRAND BEND. AN
ENVIRONMENT CANADA STORM INVESTIGATION TEAM HAS CONFIRMED THAT THE
THUNDERSTORM GENERATED AN ENHANCED FUJITA SCALE ONE (EF1) TORNADO
WITH PEAK WINDS BETWEEN 155 AND 175 KILOMETRES PER HOUR. THE ENHANCED
FUJITA SCALE RUNS FROM ZERO (WEAKEST) TO 5 (STRONGEST). THE STORM
INVESTIGATORS FOUND A NUMBER OF TREES UPROOTED OR SNAPPED OFF AND
DAMAGE TO SOME HYDRO POLES AS WELL ALONG THE DAMAGE TRACK. THERE
HAS ALSO BEEN A REPORT OF ONE SERIOUS INJURY DUE TO A FALLEN
TREE AT THE NORTH END OF PINERY PROVINCIAL PARK ALONG THE DAMAGE
PATH. THE TRACK OF THE DAMAGE WAS 500 METRES AT ITS WIDEST AND THE
LENGTH OF THE DAMAGE WAS ESTIMATED TO BE ABOUT 5 KILOMETRES.

THIS IS ONTARIO'S EIGHTH TORNADO OF THE SEASON. ONTARIO CONFIRMS AN
AVERAGE OF 12 TORNADOES EACH YEAR DURING A SEASON THAT RUNS FROM LATE
APRIL TO EARLY OCTOBER.

IN ADDTION, THUNDERSTORMS PRODUCED TORRENTIAL DOWNPOURS WHICH
AFFECTED MANY PORTIONS OF SOUTHERN ONTARIO LATE SUNDAY AFTERNOON AND
INTO THE NIGHT. THIS PROMPTED ENVIRONMENT CANADA TO ISSUE SEVERAL
SEVERE THUNDERSTORM WARNINGS AS WELL AS A FEW TORNADO WARNINGS.
THERE WERE NUMEROUS REPORTS OF HEAVY RAINFALL TOTALS IN AREAS
STRETCHING FROM SOUTHWESTERN ONTARIO TOWARDS THE GOLDEN HORSESHOE.
IN ADDITION, A FEW HAIL AND WIND DAMAGE REPORTS WERE RECEIVED.

THE FOLLOWING IS A SUMMARY OF THE MORE SIGNIFICANT RAINFALL TOTALS
RECEIVED BY ENVIRONMENT CANADA AS OF 2.00 PM. EDT.

LOCATION             TOTAL RAINFALL AMOUNT IN MILLIMETRES
WINDSOR AIRPORT                     47  (QUARTER SIZED HAIL AS WELL)
KITCHENER AIRPORT                   71
DELHI                               59
VINELAND                           110
ST. CATHARINES                      55
GRIMSBY                             59
BUTTONVILLE AIRPORT                 86
WOODBRIDGE                          61
HAMILTON AIRPORT                    73


THE FOLLOWING ARE COURTESY OF THE GRAND RIVER CONSERVATION AUTHORITY

LOCATION             TOTAL RAINFALL AMOUNT IN MILLIMETRES
BURFORD                            119
BRIDGEPORT                          50
LUTHER                              71
ARTHUR                              79
WELLESLEY                           55
MILLBANK                            60
PARIS                               63
BRANTFORD                           53


THE FOLLOWING ARE COURTESY OF TORONTO REGION CONSERVATION AUTHORITY

LOCATION             TOTAL RAINFALL AMOUNT IN MILLIMETRES
G ROSS LORD DAM                     75
OAK RIDGES                          80


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

[Skies]

Some radar imagery from the NOAA download website and their free Java app.

Not sure if it has merit but I'm a neophyte and wanted to check things out.

Five of them are for Grand Bend and one for the Millbank funnel cloud