More Light Snow As Temperatures Warm

Brad Leave a comment

Winnipeg will continue to see sporadic bouts of light snow as mild air pushes across the province.

Winnipeg will see some more light snow today as a weak low pressure system moves through the province. The light snow will mainly fall in the morning, tapering off by midday. Temperatures will warm back up to a high near -4 °C with southerly winds of 20–30 km/h easing and eventually turning to the northwest. The cloud cover will break up a bit tonight with temperatures dipping to a low near -14 °C.

Thursday will be quite a pleasant December day in Winnipeg as a weak ridge brings partly cloudy skies to the region. Temperatures will stay mild with a high near -5 °C and winds picking up out of the southeast into the 20–30 km/h range in the afternoon. Skies will cloud back over on Thursday night with southerly winds picking up to 30 gusting 50 km/h. The city should see a low near -8 °C early, then temperatures will slowly warm up overnight.

RDPS 24hr. Accumulated Snowfall (at 10:1 SLR) valid 21Z Friday December 18, 2020
A low pressure system crossing Manitoba on Friday will bring more snow to the region.

More light snow will move through southern Manitoba on Friday as a low pressure system moves across the province. The snow will again likely be primarily a morning concern; a potent Arctic front will plough through the region midday, pushing the snow off to the east and ushering in northwest winds up to 40 gusting 60 km/h. Temperatures will reach a high near -3 °C before the cold front moves through, then drop close to -10 °C by the end of the afternoon. The winds will ease on Friday night with clearing skies and a low near -20 °C.

Long Range Outlook

The cold will again be short-lived with warmer weather quickly pushing back into the region. Temperatures will climb back into the mid-minus single digits for the weekend. The milder conditions will again come with cloud cover and a chance for some light snow. The best chance of accumulating snow will be on Sunday when a low is forecast to move across the province.

Today’s seasonal daytime high in Winnipeg is -10 °C while the seasonal overnight low is -20 °C.

A Short-Lived Cold Snap

Brad Leave a comment

Winnipeg saw temperatures plunge back towards seasonal values overnight after a cold front swept through the region on Sunday. These colder temperatures will be short-lived, though, with milder temperatures returning to the region mid-week.

Temperatures will be seasonably cool in Winnipeg today as an Arctic ridge moves through the region. The city will see a high near -14 °C with light winds as the ridge moves across the Red River Valley. Some cloud will work into the region today as warmer air starts pushing in from the west.

Skies will stay cloudy tonight with a good chance of some light snow developing as a weak shortwave pushes towards the region. Temperatures will dip to a low near -18 °C.

Skies will stay mainly cloudy in Winnipeg on Tuesday as that weak shortwave moves across the region. Temperatures will climb to a high near -9°C with a chance for some light snow continuing through the day. A milder air mass will gradually push into the region from here on, shunting the coldest weather off to the north and east. Temperatures will dip to a low near -12 °C on Tuesday night with mixed skies.

RDPS 24hr. Snowfall Accumulation (Kuchera SLR) valid 00Z Wednesday December 16, 2020
Another swath of 2–4 cm of snow will fall across portions of Southern Manitoba Monday night into Tuesday.

More warm air pushing into the region on Wednesday will bring more cloud to the city. Skies will again be mostly cloudy with a chance of some scattered light snow. Temperatures will reach a high near -6 °C with light southerly winds. Temperatures will dip to a low near -12 °C on Wednesday night under mixed skies.

Long Range Outlook

Temperatures will stay mild over the coming days with generally above-seasonal highs and lows forecast. No significant snow events are in the forecast.

Today’s seasonal daytime high in Winnipeg is -10 °C while the seasonal overnight low is -19 °C.

End of Weekend Brings Colder Weather

Brad Leave a comment

Winnipeg will see temperatures slowly drop towards seasonal values as several weak disturbances moving through the region draw cooler air southwards.

A blanket of low cloud entrenched over the region will keep temperatures seasonably mild in Winnipeg today. The city will see temperatures climb back to around -2 °C with light southeasterly winds. There’s a small chance of some flurries later today into the evening as a weak low moves across the region. The cloud cover should break up a bit tonight with light northeast winds and a low near -12 °C.

A ridge of high pressure will move across the region on Saturday and keep winds light. Temperatures will again be seasonably mild with highs recovering to around -4 °C. The city will see partly cloudy skies through the day. An approaching low will spread cloud into the region on Sunday night as temperatures head to a low near -8 °C.

RDPS 2m Temperature Forecast valid 12Z Monday December 14, 2020
The coldest weather so far this season will arrive Sunday night as temperatures plunge into the -20s across most of Manitoba and Saskatchewan.

A low pressure system crossing the province on Sunday will bring cloudy skies to Winnipeg. Temperatures will start off seasonably mild with a high near -6 °C, but a cold front will sweep through the Red River Valley midday and bring breezy northwest winds of 30–40 km/h behind it. This cold front will give a small chance of some light snow, then begin ushering in a much colder air mass. The cloud cover will break up on Sunday night with temperatures heading to a low near -22 °C.

Long Range Outlook

Winnipeg will start the new week with seasonably cold conditions, but by mid-week milder air pushes back into the region. It won’t be as warm as it has been, but highs could return to the mid-minus single digits.

Today’s seasonal daytime high in Winnipeg is -9 °C while the seasonal overnight low is -19 °C.

Clipper System Brings Winter Back to Winnipeg

Brad Leave a comment

After record-breaking warmth yesterday, a change in the weather is coming up as a clipper will bring snow and usher a much colder air mass into the region.

Today will still be fairly mild in Winnipeg with temperatures once again climbing above freezing. The city should see a high near +2 °C with clouds increasing this afternoon as a low crossing the Northern Plains pushes towards the region. Skies will cloud over this evening with light snow beginning overnight. Temperatures will dip to a low near -2 °C.

Accumulating snow will taper off by midday Thursday with 5–10 cm likely in the Winnipeg area. There’s a slight chance that the snow band from this low will end up a touch further south; that would put Winnipeg closer to 2–5 cm and the southern Red River Valley in the 5–10 cm range. After the main snow tapers off, flurries will linger as a cold front gradually slumps southwards into the region. Temperatures will reach a high near -1 °C with northwest winds climbing into the 20–30 km/h range. The flurries will taper off overnight as temperatures head to a low near -9 °C and winds ease.

RDPS 24hr. Snow Accumulation (at 10:1 SLR) valid 18Z Thursday December 10, 2020
Snow will move across southern Manitoba on Wednesday night and leave behind a swath of accumulations in the 5–10 cm range.

Friday will continue the cooling as more seasonal temperatures push towards the region. Mixed skies will persist through the day — there may be some occasional non-accumulating light snow — with temperatures climbing back to a high near -5 °C. Skies will be partly cloudy on Friday night with temperatures dipping to a low near -16 °C.

Long Range Outlook

A much colder air mass will settle into the region this weekend. Daytime highs are forecast to drop into the minus teens with overnight lows potentially dipping below -20 °C by Monday morning. Temperatures may moderate slightly, but near-seasonal temperatures are forecast to persist right through much of week.

Today’s seasonal daytime high in Winnipeg is -9 °C while the seasonal overnight low is -18 °C.