December starts icy in Ontario

OPP Hwy 401 crash

Highway 401 multi-vehicle crash near Kingston, ON, 01 Dec 2019 (OPP/Twitter)

A low pressure system delivered an icy mix of precipitation to Southern Ontario on Sunday with freezing rain and ice pellets turning highways and walkways into ice rinks.

Ontario Provincial Police say heavy snow shut down a section of Highway 401 near Kingston after a 30 to 40 vehicle pileup with more than a dozen injured and one fatality.

At least 500 road crashes were reported in the Greater Toronto Area and numerous flights were either cancelled or delayed at Pearson Airport.

Tens of thousands lost electricity after ice-laden tree branches fell onto power lines,

Several towns and cities were forced to cancel their Santa Claus Parades due to the extreme weather.

Early snow for southern Ontario & Quebec

A snowy Gore Park, Hamilton, ON, 11 Nov 2019 (City of Hamilton)

An early winter storm tracked south of the Great Lakes on Monday and brought snow to Southern Ontario and Southern Quebec.

Snowfall amounts generally ranged between 10 and 30 cm.

Environment Canada says Toronto marked its earliest major snowfall on record with about 15 cm.

Arctic air has filtered in behind the storm prompting the city to issue an extreme cold weather alert with a possible overnight low of -15°C.

Snowfall amounts (cm), Tuesday 5pm EST:

  • Montreal 20
  • Quebec City 20
  • Windsor 19
  • Hamilton 17
  • Toronto (downtown) 15
  • Ottawa 13

Fading tropical storm batters Ontario

Courtesy Weather Nation

The remnants of Tropical Storm Olga were felt across Southern Ontario on the weekend with rainy and windy conditions.

Environment Canada says between 30 and 60 mm of rain fell across the region including the Greater Toronto Area.

Wind gusts were up to 80 km/h in some locations with a peak of 104 km/h recorded at Port Colborne on Lake Erie.

Olga formed in the Gulf of Mexico several days ago and made landfall in Louisiana before quickly churning northward toward the Great Lakes.

Forecasters are calling for more wet weather and cooler conditions by Halloween.

Thunderstorms cool off Eastern Canada

Thunderstorms rolling across Southern Ontario and Southern Quebec this weekend brought an end to oppressive heat and humidity.

Toronto residents were trying to keep cool Saturday when the mercury soared to 33.0°C with a stifling humidex of 44 and Montreal reported similar conditions.

In the Maritimes, even typically cooler coastal areas were warm with new record highs set in Saint John and Grand Manan.

The temperature in Greater Moncton peaked at 32.4°C which fell short of the record of 33.5°C from 1991.

A brief, violent thunderstorm hit Halifax on Sunday afternoon with flash flooding and strong winds knocking out power to more than 44,000 Nova Scotians.

Hottest weather yet?

Saint John River at Perth-Andover, NB, 16 July 2019 (Dearing)

The next heat wave across Eastern Canada could be the warmest period yet this summer with daytime highs in the low 30’s C and humidex values near 40.

Southern Ontario and Southern Quebec have been blanketed with heat warnings from Environment Canada with hot, humid days and warm nights expected this weekend.

Temperatures in the Maritimes for Saturday and Sunday could reach 30 C but a cold front will bring cooler and drier air by Monday.

A mini heat wave already brought highs of 29 C and 30 C earlier this week in Greater Moncton.

Weather bomb crosses the continent

Bomb cyclone

Bomb cyclone centre in U.S. Midwest, 14 Mar 2019 (earth.nullschool.net)

A so-called bomb cyclone brought blizzard conditions to Colorado and now heavy rain,  flooding and even tornadoes to the U.S. Midwest.

The weather bomb occurs when there is a rapid drop in atmospheric pressure over a 24 hour period.

Further north, the storm is dumping snow across Minnesota as it moves into northwestern Ontario.

Severe thunderstorm watches have been posted for Southern Ontario with strong winds expected along with heavy rain.

New Brunswick will the effects this weekend with significant rainfall and gusty winds in the forecast.

Heaviest snowfall of 2019

Courtesy NB Highway Cameras, 13 Feb 2019

Lots of rain, freezing rain and ice pellets have been recorded so far this year in Southeast New Brunswick but snow has been somewhat scarce – until today.

A Colorado Low made its way across the continent this week bringing lots of snow to the American Midwest, Southern Ontario and Southern Quebec before arriving in the Maritimes.

Greater Moncton received 26 cm of snow followed by ice pellets and some freezing rain/drizzle along with strong winds which created poor visibility.

Snowfall amounts were fairly consistent across most of Nova Scotia with 22 cm at Greenwood and Halifax Stanfield Airport, 21 cm in Sydney but only 11 cm in Yarmouth.

Environment Canada says cold weather will replace the snow for late week with a brief warmup and rain expected this weekend.

Spring-like in Eastern Canada

Ahead of a Colorado Low, a mild southerly air flow moved across Eastern Canada resulting in record high temperatures from Southern Ontario to New Brunswick.

The thermometer climbed to a balmy 7.2 C in Greater Moncton but it was shy of the 1962 record of 11.1 C.

Among the locations setting new maximums in New Brunswick on 05 February:

Bouctouche
Tied record of 8.5 set in 2018
Records since 1965

Fredericton
New record of 11.3
Old record of 8.3 set in 1890
Records since 1871

St. Stephen
New record of 12.4
Old record of 9.9 set in 2006
Records since 1898

Woodstock
New record of 10.1
Old record of 7.8 set in 1890
Records since 1886

New record highs set in Ontario included:

St. Catharines
New record 15.1
Old record 13.0 in 1991
Records began in 1902

London
New record 10.0
Old record 9.9 in 1991
Records began in 1941

Kitchener
New record 11.3
Old record 7.8 in 1962
Records began in 1915

Hamilton Airport
New record 12.1
Old record 10.6 in 1991
Records began in 1960

Toronto Pearson Airport
New record 12.7
Old record 11.0 in 1991
Records began in 1970

Peterborough
New record 10.3
Old record 9.0 in 1991
Records began in 1968

Trenton Airport
New record 10.8
Old record 9.2 in 1991
Records began in 1970

(Data courtesy Environment Canada)

First snowfall warning for Southeast N.B.

While other parts of New Brunswick have already had significant snow this fall, the first snowfall warning of the season has been issued for Greater Moncton and the Southeast region.

Fresh from impacting Southern Ontario, Southern Quebec and the U.S. Northeast, Environment Canada says this storm will bring up to 15 cm of snow with ice pellets and rain mixing in before tapering off later tonight.

Schools were cancelled in anticipation of the storm with snow beginning to fall by midmorning.

Prince Edward Island and Cape Breton Island are expecting 15 to 20 cm with lesser amounts for mainland Nova Scotia.

U.S. Northeast hit by early season snow

Snow falling in Washington, DC, USA, 15 Nov 2018 (Instagram)

A significant November snowstorm took meteorologists by surprise yesterday when more snow fell and for longer than originally forecast.

A Nor’easter moved up the U.S. Eastern Seaboard dropping 16 cm of snow on New York City which created commuter chaos with train delays and dozens of drivers trapped in their vehicles on treacherous highways.

While Washington, DC only picked up about 4 cm – the biggest November snowfall in three decades – it was to take road crews by surprise and some schools were closed.

The precipitation also included ice pellets and freezing rain with an eventual changeover to rain.

The storm also brought between 10 and 20 cm of snow across Southern Ontario with Toronto Pearson Airport picking up 11 cm.

The same system is now impacting the Maritimes.