Breezy But Continuing Mild in Winnipeg

A breezy northwest wind won’t manage to bring an end to the seasonably mild stretch of weather in Winnipeg.

Breezy northwest winds near 30 gusting 50 km/h will persist in Winnipeg toady as a Colorado Low storm system departs to the east. Unlike most other times, though, this wind isn’t the harbinger of a deep freeze; rather, temperatures will keep roughly where they have been lately with a high near -9°C. Skies will be cloudy through the day with the remnant light snow tapering off. The wind will persist at 20 to 30 km/h tonight with the cloud cover gradually breaking up. Winnipeg will see a low near -15°C, although if the clouds are more stubborn and stick around longer it’ll be closer to -11 or -12°C.

The lack of cold temperatures over the past couple weeks is largely due to the positioning of the Polar Vortex, a persistent winter feature over the Northern Hemisphere. A variety of factors impact where it, and the bitterly cold air associated with it, moves. When the vortex descends into Hudson Bay, it results in the brutal cold snaps across the eastern Prairies.

For the past couple weeks, however, the Polar Vortex has been trundling about the High Arctic. This has kept the coldest temperatures further north and allowed milder Pacific air to cross the Rockies into the Prairies more often. Fortunately (for cold-weather haters), the Polar Vortex is forecast to stay in the High Arctic for the next while. This will allow Winnipeg to continue to see relatively mild temperatures through the rest of the week.

RDPS 10m Wind Forecast valid 21Z Monday December 30, 2019
Breezy northwest winds of 30 to 40 km/h will be in place over the Manitoba Lakes and Red River Valley today.

On Tuesday, a ridge of high pressure will cross Manitoba, bringing an end to the breezy winds and mixed skies. Daytime highs will once again be around -9 or -10°C across the region. A broad area of low pressure developing over the western Prairies will push more cloud into the region on Tuesday night along with southerly winds around 20 km/h. Winnipeg’s low will dip to around -12°C.

2020 will start off with relatively pleasant winter weather in Winnipeg. The broad area of low pressure will move into Manitoba on Wednesday. Skies will be mostly cloudy and while no organized snow will move through, a few flurries are possible. Temperatures will be mild with a high near -4°C. The chance for flurries will continue on Wednesday night with temperatures dipping to around -7°C.

Long Range Outlook

The rest of the week looks seasonably mild with plenty of cloud cover. While a few flurries are possible, no organized snow looks likely until the weekend when another low moves through and brings the chance for accumulating snow to the Red River Valley.

Today’s seasonal daytime high in Winnipeg is -13°C while the seasonal overnight low is -23°C.

Mild Christmas Weather Ahead

Winnipeg will enjoy seasonably mild temperatures right through Christmas Day.

Winnipeg will continue to see daytime highs in the -5 to 10°C range through the first half of the week as a series of weak systems move through the region. Today, the city will see partly cloudy skies with light southeast winds as a high pressure system moves through. Skies will become cloudier tonight as a low pressure system approaches. Tuesday will bring mostly cloudy skies to the region as the low moves through. Winds will stay light, shifting westerly later in the day and there will be just a small chance of flurries. Skies will be cloudy on Christmas Day with light winds again as a ridge of high pressure moves into the region.

GDPS 2m Temperature Forecast valid 00Z Thursday December 26, 2019
Winnipeg will see seasonably mild temperatures on Christmas Day with a high near -6°C.

Overnight lows will dip to around or just below -10°C all 3 days.

Long Range Outlook

Mild temperatures will continue right through to the end of 2019 with no notable precipitation in the forecast. It will be great weather to get outside and enjoy some winter activities! The cloud cover should begin to break up for the end of the work week, bringing sunnier conditions to the region for the weekend.

Today’s seasonal daytime high in Winnipeg is -12°C while the seasonal overnight low is -22°C.

Warm Weather Arrives for the Weekend

Winnipeg will see variable cloudiness over the coming days as a milder Pacific air mass brings above-seasonal temperatures back to the region.

Seasonal temperatures will give way to Pacific warmth this weekend as it spreads eastwards across the southern Prairies. The city will see a high near -9°C today with southerly winds picking up to around 20 km/h later this afternoon. Skies will stay mixed through the day. Some clearing will push into the region tonight with brisk 30 km/h winds. Temperatures will head to a low near -12°C.

Saturday will bring partly cloudy skies to the region as temperatures climb to a high near 0°C. Winds will start the day near 20 km/h and ease for the afternoon. Winnipeg will see variable cloudiness on Saturday night with temperatures dipping to a low near -7°C.

NAM 2m Temperature Forecast valid 21Z Saturday December 21, 2019
Temperatures will climb to near or just over the freezing mark across southern Manitoba on Saturday.

A low pressure system will push into the Interlake on Sunday, bringing more warmth to the region with mixed skies. Winds will pick up out of the south to around 20 km/h and send temperatures in Winnipeg to a high near 0°C. Winds will shift to the west later in the day with a bit more cloud pushing in for Sunday night. Temperatures should dip to a low near -10°C.

Long Range Outlook

Beautiful December weather will continue right through next week with mild highs in the -5 to 10°C and mixed to cloudy skies. No significant snow is in the forecast.

Today’s seasonal daytime high in Winnipeg is -11°C while the seasonal overnight low is -21°C.

A Break From The Deep Freeze

A stretch of mild weather will develop in Winnipeg this week with temperatures even climbing back towards 0°C on the weekend.

Today will mark the start of a large-scale pattern change that will cut off the supply of Arctic air to the Prairies. A westerly to southwesterly flow aloft will develop through the rest of the week, pushing warmer Pacific air gradually eastwards. Before the city sees the warmer temperatures, though, the colder air needs to vacate. Today will be the day for that; it will be a rather typical “transition day” for Winnipeg.

Moderate southerly winds of 30 to 40 km/h will persist through the day under mostly cloudy skies. There will be a slight chance of flurries this morning, but snow will likely stay mainly north of the city. Temperatures will climb to a high near -13°C.

Temperatures in Winnipeg will head to a low near -15°C tonight with diminishing winds under partly cloudy skies.

RDPS 10m Wind Forecast valid 18Z Wednesday December 18, 2019
Moderate southerly winds will be in place over south-central Manitoba on Wednesday.

Thursday will bring mostly cloudy skies to the city again with a high near -10°C. Winds will be light out of the north-northeast. Temperatures will dip to a low near -13°C on Thursday night under cloudy skies with a chance of flurries.

A warm front will approach the province on Friday, keeping things cloudy with a chance for some light snow. Temperatures will continue to warm with a high near -8°C in Winnipeg. The winds will stay light, but shift to southerly.

The warm front and its parent low will push across the province on Friday night into Saturday. This will bring southerly winds of 20 to 30 km/h to Winnipeg for the night with a low near -12°C.

Long Range Outlook

Pacific air will wash over southern Manitoba on Saturday, bringing seasonably mild warmth to the region. Temperatures will climb to around 0°C this weekend with overnight lows in the -5 to -10°C range. Plenty of cloud will stick around, but by the weekend some sunny breaks look likely as well. Temperatures will cool slightly to start the new work week with daytime highs dropping into the -5 to -10°C range with overnight lows dipping into the minus teens.

Today’s seasonal daytime high in Winnipeg is -11°C while the seasonal overnight low is -21°C.