Temperature contrast 8pm, 12 Nov 2019 (earth nullschool.net)
Snow began falling in Southeast New Brunswick Monday night and later changed to freezing rain and then rain by Tuesday afternoon.
The temperature climbed to a balmy 14°C in Greater Moncton and 18°C in Greenwood, Nova Scotia.
But as the low pressure system moved out of the Maritimes toward Newfoundland, winds shifted to the northwest causing the thermometer to drop rapidly Tuesday night with a return to snow when it fell to freezing again.
Overnight low records could be challenged in the region by early Thursday as cold Arctic air takes hold.
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
An early blast of winter in Moncton, 09 Nov 2019 (Dearing)
Some drivers were prepared when snow entered the forecast for the first time this week and had their winter tires installed.
But many drivers were caught off guard by the heavy, wet – sloppy – snow which fell across Southern New Brunswick, Prince Edward Island, northern Nova Scotia and southwestern Newfoundland.
A low pressure system brought rain on Thursday but snow fell by evening as the temperature dropped to the freezing point.
The snow continued throughout Friday creating slippery roads which left plow operators scrambling to deal with the early blast of winter.
Many minor accidents were reported with vehicles sliding into the ditch.
The Trans Canada Highway at Cobequid Pass was forced to close for several hours Friday night after numerous tractor trailers got stuck in snow and blocked the road.
Snowfall amounts (Thu-Fri) in cm:
- Corner Brook 19.4
- Greater Moncton 18.8
- Fredericton 10-15 (estimate)
- Deer Lake 13
- Saint John 8.9
- Halifax Stanfield 5.8
- Charlottetown 3.9
(Data courtesy Environment Canada)
A low pressure system moving through the Maritimes brought the first snow of the season to Southeast New Brunswick today.
A cold rain eventually turned to snow in Greater Moncton and 7.2 cm fell with Environment Canada calling for up to 10 cm tomorrow.
As the above chart shows, the first measurable snow in the region is typically recorded from late October to late November.
Tire shops have reportedly been busy this week as drivers scramble to get their snow tires installed.
Fallen leaves, Centennial Park, Moncton, 14 Oct 2019 (Dearing)
Fewer trick or treaters are expected to be spooking neighbourhoods in Greater Moncton thanks to heavy rain and strong winds.
A low pressure system could bring at least 30 mm of rain to Southeast New Brunswick over the next 24 hours.
Potentially hurricane-strength winds are expected tomorrow ahead of a cold front but temperatures will be warm reaching the high teens.
Environment Canada has issued wind warnings with gusts from 60-90 km/h and possibly up to 110 km/h in the Tantramar Marsh.
Forecasters say the wind may cause damage to buildings such as to roof shingles and windows.
The wind may not die down until early Saturday.
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.
A tree topples over in Halifax, NS, 17 Oct 2019 (Nova Scotia Power/Twitter)
A so-called bomb cyclone with wind and rain moved through the Maritimes in just a few hours today.
The intense low pressure system brought winds gusting up to 89 km/h in Saint John which uprooted some trees already weakened by Hurricane Dorian last month.
Greater Moncton recorded a peak gust of 78 km/h along with 20 mm of rain which caused some localized flooding as leaves clogged storm drains.
The winds were even stronger in Nova Scotia with a gust of 101 km/h at Halifax harbour and 106 km/h in Lunenburg which brought trees down knocking out power.
The highest gust was near Cheticamp on Cape Breton Island at 148 km/h.
Rainfall amounts across New Brunswick and Prince Edward Island ranged from 15 to 30 mm with more than double those amounts in Nova Scotia.
An intense low pressure system is heading to the Maritimes.
Heavy rain will start during the morning hours in Greater Moncton and strong winds will develop by midday.
Environment Canada says rainfall amounts could reach 50 mm while easterly wind gusts of 70 km/h or higher are likely.
Some trees may be at risk of falling after being weakened by Hurricane Dorian last month.
Many leaves will undoubtedly drop which could plug storm drains causing localized flooding.
A wintry scene in Winnipeg, 12 Oct 2014 (Facebook/Winnipeg)
The Manitoba government declared a state of emergency on Saturday after a powerful storm dumped heavy rain, freezing rain, snow and wind to southern portions of the province this week.
Amid the early winter blast, Manitoba Hydro is trying to restore electricity to thousands of residents after numerous trees and branches – many still covered in leaves – fell onto power lines with winds gusting up to 100 km/h.
The storm was so bad it forced the temporary closure of the Trans Canada Highway from Winnipeg to the Saskatchewan border.
Southern Manitoba got blasted after a Colorado Low moved in from the United States where it brought dramatic temperature drops and heavy snow to the Great Plains states.
The next concern for local emergency measures officials will be flooding as the snow melts given the rising temperatures forecasted over the next few days.
Snowfall totals as of 1pm CDT on Saturday, October 12th:
- Carberry 74 cm
- Morden 64 cm
- Winnipeg 34 cm
- Dauphin 30 cm
- Brandon 29 cm
(Data courtesy Environment Canada)
Irishtown Nature Park, 05 October 2019 (Dearing)
Barely a day after the coolest daytime high in five months, temperatures climbed into the high teens in New Brunswick and low 20’s in Nova Scotia.
This proves just how changeable October can be.
Greater Moncton has wrapped a third day at around 17°C.
The maximum October temperature is typically at least 20°C and it is still possible to reach it before the end of the month.