Arctic High Brings More Cold Weather

An approaching Arctic ridge will send temperatures in Winnipeg plunging well below seasonal values once again.

Colder weather returns to Winnipeg today as an Arctic ridge begins building through the Prairies. Northwesterly winds near 30 km/h will keep temperatures much cooler than seasonal today; Winnipeg’s high temperature will struggle to just -6°C. The colder air will continue to filter into the region tonight, sending temperatures down to a low near -15°C. Morning cloud will give way to breaks of sunshine this afternoon. Winnipeg will see a chance of flurries through the afternoon into the early evening. Skies will gradually continue to clear overnight with winds shifting to westerly at 10 to 20 km/h.

Flurries will be possible across much of southern Mantioba this afternoon.
Flurries will be possible across much of southern Mantioba this afternoon.

The Arctic ridge will move through the Red River Valley on Saturday, bringing cool temperatures and sunny skies. Winnipeg will see a high of just -9°C with west-southwest winds of 15 to 25 km/h. Temperatures will drop to a low near -13°C on Saturday night with increasing cloudiness.

Sunday will bring fairly cloudy skies to the region, although once again sunny breaks will be possible through the afternoon. It will be another cool day with a high near -8°C and winds should be light through the day. Skies will remain mixed to mostly cloudy on Sunday night as temperatures drop to a low near -14°C.

Long Range Outlook

Next week should bring a return to seasonal temperatures by mid-week with variable cloudiness. No significant precipitation is forecast.

Winnipeg’s seasonal daytime high is currently -2°C while the seasonal overnight low is -10°C.

Seasonal Temperatures Return to Winnipeg for A Couple Days

Cloudy conditions return to Winnipeg as temperatures finally climb back towards seasonal values for a couple days.

Seasonal temperatures will finally return to Winnipeg today as warmer air spreads eastwards across southern Manitoba. The city will see temperatures climb to a high near 0°C with southerly winds near 30 km/h. Some sunshine may appear through the morning hours, but the cloud cover should thicken up this afternoon. Skies will remain mixed to mostly cloudy overnight with temperatures dipping to a low near -4°C.

Thursday will be a slightly more active day as an upper-level disturbance ripples southeastwards through the province. As it moves into the region in the morning, it will spread light snow with a risk of freezing rain across the Red River Valley. Temperatures will be climbing towards a high near 0°C, so if freezing rain materializes there may be a few hours in the morning where untreated surfaces become quite slippery. The risk for freezing rain should end by lunchtime as cooler air begins pushing in from the north. Light snow will continue through much of the afternoon, then taper off in the evening. This band of precipitation will likely leave behind 2 to 4 cm of snow in its wake.

Where exactly this activity moves through is uncertain, though. Forecast models have been varying the position of the band of snow from Winnipeg to as far south as North Dakota. The general consensus at this point is that most of the precipitation will likely pass south of Winnipeg, closer to the American border. This outcome would leave Winnipeg with just mostly cloudy skies for the day.

A narrow band of snow and/or freezing rain will move through Manitoba on Thursday, likely passing south of Winnipeg either through the southern Red River Valley or across northern North Dakota.
A narrow band of snow and/or freezing rain will move through Manitoba on Thursday, likely passing south of Winnipeg either through the southern Red River Valley or across northern North Dakota.

Winds will start off calm in the morning and slowly pick up out of the northwest to around 20 km/h. Expect a mostly cloudy night with a continued chance of flurries and a low near -9°C.

Friday will bring much cooler temperatures back to the region as an Arctic air mass plunges southwards behind Thursday’s system. Winnipeg’s temperature will barely recover, reaching just -6°C. Winds will persist out of the northwest at 20 to 30 km/h and skies will remain mostly cloudy. There will be a continued chance for flurries through the day. Temperatures will head to a cold overnight low near -15°C on Friday night with mixed skies.

Long Range Outlook

Generally dry conditions are forecast through the weekend into the first half of next week, but temperatures will remain well below seasonal values. Some indications are that temperatures may moderate in the middle of next week, but the jury is still out on how believable that optimism may be.

Winnipeg’s seasonal daytime high is currently -1°C while the seasonal overnight low is -9°C.

Winnipeg’s Cold Start Gives Way To Seasonal Temperatures Mid-Week

It will be a cold start to the week in Winnipeg, but moderation is on the way with a return to seasonal temperatures mid-week.

Winnipeg will see variable cloudiness today as a ridge of high pressure builds into the province. This Arctic ridge will keep temperatures quite cool with a high of only -8°C. The wind will start the day out of the northwest at 20 to 30 km/h and gradually diminish as it turns westerly by evening. Expect another cold night with a low near -14°C under partly cloudy skies.

Winnipeg will see slightly milder temperatures on Tuesday as the ridge pushes past. With light winds, the city should manage to climb to a high temperature near -5°C; this is still well below-seasonal for this time of year, though. It will be another day of variable cloudiness, but an approaching warm front will thicken cloud up towards the evening hours and bring with it a slight chance for some flurries. Winds will increase out of the south to around 20 km/h by Wednesday morning.

NAM 2m Temperature Forecast Valid 21Z Wednesday November 14, 2018
Seasonal temperatures are forecast to return to southern Manitoba on Wednesday

Temperatures will finally return to seasonal values on Wednesday courtesy the warm from that pushes through on Tuesday night. Winnipeg will climb to a high near +1°C under mostly cloudy skies while winds continue out of the south-southwest at 20 to 30 km/h. The winds will ease heading into the evening and Winnipeg will head to a low near -4°C with variable cloudiness overnight.

Long Range Outlook

Unfortunately, the warm weather won’t be around for too long. A cold front will slump southwards through the province on Thursday, bringing more flurries and cloud cover with it. Temperatures will head back below seasonal for the weekend as a large Arctic high plows through the Prairies. Some moderation in temperatures is forecast by early next week.

Winnipeg’s seasonal daytime high is currently -1°C while the seasonal overnight low is -9°C.

Cool Weather Continues With More Snow Possible

Winnipeg will continue to see unseasonably cold weather right through the weekend as Arctic air remains entrenched over Manitoba.

Some sunshine will reappear in Winnipeg today as the city sees a mix of sun and cloud. Any time clouds are around, they’ll likely be producing some flurries. Temperatures will beis cool with a high near -7°C, held down by an approaching Arctic high. Temperatures will plunge to a low near -18°C – or perhaps even a bit colder – unless the city ends up manages to find itself underneath some cloud cover.

Slightly milder temperatures begin pushing into the province on Saturday ahead of a low pressure system moving across Saskatchewan. With increasing cloud cover, temperatures will climb to a high near -4°C in Winnipeg. Winds will pick up out of the south-southeast to 30 to 40 km/h by midday. Winnipeg shouldn’t see any precipitation during the day, but light snow should move into the Red River Valley on Saturday evening from the west. Periods of light snow will persist Saturday night as temperatures fall to a low near -9°C. Those breezy southeasterly winds should taper off roughly coincident with the snow pushing into the Red River Valley.

RDPS 24hr. QPF Forecast valid 12Z Sunday November 11, 2018
Light snow will spread across southwestern Manitoba on Saturday and into the Red River Valley on Saturday night.

Sunday will bring plenty of cloud and breezy northwesterly winds to Winnipeg and the Red River Valley. Temperatures will once again climb to a high near -5°C. Snow squalls will redevelop off of the Manitoba Lakes as the broad area of light snow leaves the province. By Sunday evening, another 2 to 5 cm seems likely through the Red River Valley with higher amounts in areas affected by the squalls.

Skies will remain mostly cloudy on Sunday night with a chance of snow in Winnipeg depending exactly where the lake squalls set up. Temperatures will dip to a low near -12°C.

Long Range Outlook

The below-normal temperatures will continue right through next week with variable cloudiness. Winds don’t look as favourable for squalls through a portion of the week, however some more snow looks possible sometime in the second half of the week.

Winnipeg’s seasonal daytime high is currently +1°C while the seasonal overnight low is -7°C.