Cold Snap Comes With Quick Recovery

Winnipeg will see temperatures plummet well below seasonal for Thursday, but the cold conditions won’t last long.

An advancing cold front will bring cloudy skies with periods of light snow to Winnipeg today. Accumulations will be minimal but don’t let that fool you: this system will pack a punch. Temperatures will reach a high near -9°C this morning, but midday the cold front will slide through and shift the winds northwesterly. Winds will strengthen through the afternoon to around 30 gusting 50 km/h, ushering in a markedly colder air mass. Temperatures will fall to around -11°C by the evening, and then continue to a low near -25 or -26°C. While this is unseasonably cold, it won’t be anywhere near the record low which sits in the -30s. Skies will clear out in the evening alongside diminishing winds.

Fortunately, the cold will be short-lived. Thursday will see a daytime high colder than the seasonal overnight low as temperatures climb back to around -17°C. Winds will remain light and gradually shift to southerly as an Arctic high passes through the region into the Dakotas. The core of the cold air will already be to our east by Thursday night, with warmer air quickly moving in behind it. As a result, the city will see some cloudiness on Thursday night with temperatures remaining fairly steady near -17 or -18°C.

This forecast of temperature departures from seasonal show the core of the coldest air over southern Manitoba midday Thursday. Note, however, the flood of warmer temperatures quickly spreading back into the Northern Prairies in its wake.
This forecast of temperature departures from seasonal show the core of the coldest air over southern Manitoba midday Thursday. Note, however, the flood of warmer temperatures quickly spreading back into the Northern Prairies in its wake.

Friday will bring more sunshine as temperatures continue to climb back towards seasonal. Winnipeg will see a high near -11°C with light southerly winds continuing. Temperatures will dip to a low near -15°C on Friday night with a few clouds.

Long Range Outlook

The city should see near-seasonal temperatures through the weekend with a fair amount of sunshine. Seasonal to above-seasonal temperatures look likely to start next week, but cloud and the chance for more flurries or light snow may return midweek into the weekend.

Winnipeg’s seasonal daytime high is currently -8°C while the seasonal overnight low is -17°C.

More of The Same Until Mid-Week Cold Blast

Mostly cloudy conditions will persist in Winnipeg until an Arctic cold front surges southwards mid-week and brings clearing skies along with a blast of cold weather.

Winnipeg will see near-seasonal temperatures today and tomorrow as the region remains in a relatively stagnant pattern. The vast expanse of stratus cloud that has been in place over the past several days remains. A few patches of clearing may develop through the day, but it’s practically impossible to predict where exactly that will occur before it happens. While skies should remain mainly cloudy today and tomorrow, a peek of sun is possible. Daytime highs both today and Tuesday will be a near-seasonal -7 or -8°C. Cloud cover in the region will keep overnight lows slightly warmer in the -10 to -12°C range or so.

A major pattern shift will take place on Wednesday as an Arctic cold front plows southwards though the province. The city will see cloudy skies and 2 to 4 cm of light snow as the front moves through. Northerly winds of 30 gusting 50 km/h will move in behind the front as skies clear, ushering in a markedly colder air mass. Temperatures will plummet Wednesday night to a low near -24°C with wind chill values dipping towards the mid-minus 30s.

Long Range Outlook

The remainder of the work week will bring seasonably cold temperatures with daytime highs in the minus teens.

This forecast map of temperature anomalies for Thursday shows the wide swath of temperatures well below seasonal values across the southern Prairies.
This forecast map of temperature anomalies for Thursday shows the wide swath of temperatures well below seasonal values across the southern Prairies.

The coldest temperatures will be short-lived, though, with signs that temperatures will moderate through the weekend back towards seasonal values to start next week. On the bright side, the colder air mass will likely mean the city finally sees some consistent sunshine!

Winnipeg’s seasonal daytime high is currently -7°C while the seasonal overnight low is -16°C.

Variable Cloudiness With Seasonal Temperatures Ahead

Winnipeg will see a gradual shift towards cooler conditions over the coming days as an Arctic high builds southwards into the province.

The system that brought the first notable snowfall of the season to Winnipeg of almost 10 cm will continue to slowly move eastwards into north-western Ontario today. In its wake, an Arctic high pressure system will slowly build southwards out of Nunavut into Manitoba. This high pressure system will bring cooler temperatures back into the province by the end of the weekend.

Today, Winnipeg will see mixed skies with some morning sun followed by clouds later in the day. Temperatures will climb to a seasonal high near -6°C. Cloudy skies will persist tonight with lows dipping to around -9°C this evening.

Saturday will bring mixed skies as morning cloud breaks to let some mid- to late-day sun shine through. Temperatures will reach a high near -5°C with light northerly winds. Temperatures will head to a low near -11°C tonight with a few clouds around.

A broad Arctic high will slowly build southwards into Manitoba through the weekend.
A broad Arctic high will slowly build southwards into Manitoba through the weekend.

High temperatures near -6°C will be back on Sunday for Winnipeg. The city will see increasingly cloudy skies with light northerly winds. Temperatures will dip to a low near -11°C on Sunday night with mainly cloudy skies.

Long Range Outlook

Winnipeg will continue to see near-seasonal temperatures to start next week. More snow is possible Monday night into Tuesday morning, but at this point it looks like just flurries or a bit of light snow. A colder air mass will begin to build into the region mid-week, sending temperatures plummeting to well below-seasonal values by the end of the week. Get those long johns ready!

Winnipeg’s seasonal daytime high is currently -6°C while the seasonal overnight low is -15°C.

Snow Ushers In A Return To Seasonal Temperatures

Winnipeg will see its first notable snowfall of the season today as warmer temperatures move into the region.

Light snow will spread eastwards across the Red River Valley today, arriving in Winnipeg sometime mid-morning. While it won’t snow too heavily, it should stick around well into the evening before easing overnight into Thursday morning. As a result, the steady snowfall will likely pile up to around 5 cm here in Winnipeg by the time it tapers off, but areas west of the city will see a bit more at 5 to 10 cm. Temperatures will be seasonable with a high near -5°C. Winds will be a bit breezy out of the southeast at 30 gusting 50 km/h. That said, the mild temperatures should limit any blowing snow that might want to occur across the valley.

As mentioned before, periods of light snow will continue into the night with temperatures remaining steady near -5°C. Winds will ease into Thursday morning.

Thursday will be a relatively pleasant day in Winnipeg as temperatures remain seasonably mild with a high near -3°C. Skies will remain overcast with a chance of flurries and winds will remain light. Skies remain cloudy for Thursday night with a low near -8°C.

More cloudy weather will be on the way for Friday with highs near -6°C. Winds will gradually pick up out of the southeast once again to around 20 km/h. Skies will remain cloudy on Friday night with lows dipping to around -8°C.

Long Range Outlook

There’s currently a bit of disagreement on exactly how the weekend will go. Forecast models generally agree on the development of a Colorado Low that will move through the American Plains this weekend, however they disagree on how far north its impact will extend. Some models have snow and strong northerly winds in place over southern Manitoba this weekend. Others, though, keep it all to our south and leave us with cool but comparatively pleasant conditions. We’ll have more on what to expect in our next post on Friday.

Winnipeg’s seasonal daytime high is currently -6°C while the seasonal overnight low is -14°C.