A low pressure moved into the region on Thursday, bringing rain, freezing rain and snow to the area. Power outages occurred across the region due to high winds in combination with the freezing rain. School buses were cancelled in multiple regions Thursday and Friday due to the inclement weather and poor road conditions.
Environment and Climate Change Canada has issued the following Weather Summary:
"Weather summary
for Ontario and the National Capital Region
issued by Environment Canada
at 11:32 a.m. EST Sunday 18 December 2022.
Discussion.
A strong weather system brought a significant snowfall to much of
southern and eastern Ontario Thursday through Saturday.
Total snowfall amounts in centimetres are shown in the table below.
* denotes volunteer such as CoCoRaHS and Cooltap
Location and Total Snowfall Amount in Centimetres
Ottawa AIrport (estimated) 38
Cornwall 35 *
Brighton 33.3 *
Gatineau 30
Ottawa 30 *
Eldorado 28.2 *
Merrickville 27.9 *
Stittsville 26.4 *
Keene (Rice Lake) 24.1 *
Carp 23.9 *
Tapley 23.6 *
Vankleek Hill 22.6 *
Oak Ridges 21 *
Warsaw 20.1 *
Aurora 19 *
Brockville (estimated) 18
Orillia 16 *
Kemptville 14
Aurora 12.4 *
Sudbury Airport (estimated) 12
King City 11.9 *
Deep River 10.4 *
North Bay (estimated) 10
Kingston (estimated) 10
Consecon 9.9 *
Please note that this summary may contain preliminary or unofficial
information and does not constitute a complete or final report.
End/OSPC"
In an earlier weather summary issued by Environment and Climate Change Canada on Friday, rainfall amounts were reported.
"This weather system also brought a significant rainfall to some
areas near the Lake Ontario and Lake Erie shores. Amounts of 30 mm
or more are shown.
Location and total rainfall amount in millimetres
* Denotes volunteer such as COCORAHS
Toronto City 48.2
Fisherville 38.1 *
Mississauga 35.3 *
Burlington 33.8 *
Billy Bishop Airport 32.9
Toronto Scarborough 31.2 *
Several hours of freezing rain were reported across parts of
Southern Ontario Thursday as the system moved in. The freezing rain
combined with gusty winds led to dangerous winter driving conditions
and local power outages.
Location and approximate times of freezing rain Thursday
London Airport 4:34 am To 10:06 am
Waterloo Airport 7:00 am To 1:00 pm
Hamilton Airport: 7:00 am To 12:00 pm
St. Catharines Airport: 7:50 am To 10:54 am"