Weather Calms Down With Near-Seasonal Temperatures

After dodging much of yesterday’s storm, Winnipeg will see a relatively pleasant weekend with near-seasonal temperatures.

Winnipeg will settle back into a benign weather pattern in the wake of the major winter storm that clipped the southeastern corner of the province. Today will bring the most sunshine of the next few days, but temperatures will be the coolest. The city will see northwesterly winds near 30 km/h this morning, but they will diminish this afternoon as a ridge of high pressure arrives. Temperatures will reach a seasonably cool high near -5°C. The city should see mostly clear skies tonight with temperatures heading to a low near -16°C.

Saturday will bring increasing cloud to the region as a weak warm front pushes eastwards towards the Red River Valley. Temperatures will be a bit warmer with a high near -1°C with light southerly winds developing. There will be a slight chance of some snow flurries later in the day as the warm front pushes through. Mostly cloudy skies will continue Saturday night as the temperature dips to a low near -6°C.

Temperatures will cimb to near the freezing mark across much of southern Manitoba on Saturday.

Winnipeg will continue to see mostly cloudy skies on Sunday as more warm air slowly pushes eastwards into the Prairies. The city should see a high near +1°C with light winds. Sunday night is forecast to bring mixed skies and a low near -6°C.

Long Range Outlook

Long-range forecasts show significant confidence in a large upper-level ridge gradually building into the Prairies. This would bring a quiet week weather-wise with variable cloudiness and temperatures gradually warming. It looks likely that next week will result in a notable amount of melt as it progresses.

Today’s seasonal daytime high in Winnipeg is -1°C while the seasonal overnight low is -11°C.

A Windy Climb to Warmer Weather

Winnipeg will see windy conditions develop later today as warmer temperatures push in from the west.

The prolonged stretch of below-seasonal temperatures in Winnipeg that began on February 3rd is finally coming to an end. A developing westerly flow aloft will spread milder Pacific air eastwards across the Prairies today. Unfortunately for Winnipeg, there will be a bit of a transition day before we shift into the warmer temperatures. Under a few clouds today, winds will remain light until later this afternoon. Southerly winds will increase to around 30 km/h by evening, persisting at 30 to 40 km/h through the night. These southerly winds will keep temperatures a bit cooler with a high near -7°C. Temperatures will remain fairly steady overnight, dipping to a low near -8°C with increasing cloudiness.

3km NAM Forecast 10m Wind valid 06Z Tuesday March 12, 2019
The Red River Valley will see moderate southerly wind on Monday night.

For Tuesday into Wednesday, a potent Colorado Low developing in the US will be the controlling force of the weather. While at one point it seemed the Red River Valley might see a major storm, forecasts continue to trend the system southeastwards. Now, it looks that southeastern Manitoba may see some snow, but that most of the province will escape it. Instead, the region will see plenty of low cloud and mild temperatures near the freezing mark.

The wind will diminish Tuesday and then remain calm until it begins picking up out of the north on Wednesday night.

We’ll be keeping an eye on the Colorado Low as it develops.

Long Range Outlook

Temperatures will cool to just a tad below seasonal values in the wake of the Colorado Low, but by the weekend temperatures are forecast to bounce right back to around the freezing mark. Combined with the increasingly strong sunshine, Winnipeg may just find itself entering the beginning of the spring melt!

Today’s seasonal daytime high in Winnipeg is -2°C while the seasonal overnight low is -13°C.

Seasonal Temperatures on the Horizon

Winnipeg looks poised to break free of below-seasonal temperatures by the weekend. The city has seen seasonably cold temperatures entrenched over the region for much of February into the beginning of March.

Winnipeg will see fairly benign weather over the next few days as an Arctic high moves through the region. Be it cloudy periods today, mixed skies tomorrow, or increasing cloudiness on Friday, there will be cloud around through the remainder of the week.

Temperatures will be coldest today and tonight with highs and lows roughly 10°C below seasonal averages. The rest of the week will bring a gradual warming trend, reaching a high near -7°C on Friday. A few light flurries are possible over the next couple days, but forecasts show nothing of note.

Winds will be a bit breezy today out of the northwest at 20 to 30 km/h. The wind will then will diminish to calm as the Arctic high moves in tonight. Winds will remain calm or light out of the south for the remainder of the work week.

Long Range Outlook

The big shift in the weather will occur this weekend. A Colorado Low will push northeastwards through the American plains towards the Great Lakes. This system will bring some snow to the region, but the brunt of the storm will remain south of the border. The bigger impact of this storm will be how it shifts the large-scale pattern over North America.

As the Colorado Low pushes eastwards, it will finally dislodge the Polar Vortex from Hudson Bay. With the vortex gone, there will no longer be a persistent forcing of cold air southwards. This will allow seasonal temperatures to push into the region more frequently. The downside may be a more zonal pattern aloft. This pattern tends to result in more frequent disturbances moving through the region and chances for snow.

And while it’s still a long ways out, we have to mention that several models show the potential for a major winter storm next week. There’s no point in going into details, but we just want to note that some unpleasant winter weather may reappear for mid-March.

Today’s seasonal daytime high in Winnipeg is -4°C while the seasonal overnight low is -14°C.

Cool and Settled Weather On The Way

Winnipeg will head into an extended period of slightly cooler than seasonal temperatures and benign weather.

Winnipeg will see cool but comparatively pleasant conditions over the next few days. An Arctic high entrenched over the Prairies will weaken any passing disturbances right into next week. That said, Winnipeg will end the work week with sunny skies today and a high near -14°C. Unlike yesterday, winds will be light today, so conditions outside will be great for getting outside and enjoying winter activities. Temperatures will fall to a low near -27°C tonight, then gradually moderate early Saturday morning as cloud cover moves into the region.

Saturday will bring cloudy skies to Winnipeg as a disturbance slowly pushes eastwards into the Dakotas. Temperatures will warm up to a high near -12°C with light winds continuing. While south-western Manitoba may see some light snow, it doesn’t look like any will fall here in the Red River Valley. Temperatures will dip to a low near -21°C under cloudy skies on Saturday night.

Sunday will bring more cloud to the region with a high near -12°C again. Winnipeg will see a slight chance of flurries, particularly in the afternoon, but should escape any accumulating snow. Temperatures will dip to a low near -22°C again with some clear breaks developing.

Long Range Outlook

Next week looks cool and dry for Winnipeg. The city will continue to see high temperatures in the -10 to -15°C range with overnight lows near -20°C. While the week will bring variable cloudiness, it does not look like the region will see any accumulating snowfall.

Today’s seasonal daytime high in Winnipeg is -8°C while the seasonal overnight low is -18°C.


Extended Forecast Break Ahead
This will be the last forecast post for the next while as I’m taking a break from things and entering into a bit of vacation time. We’ll be back with a forecast again on March 6, 2019. In the meantime, we suggest you stay up to date with forecasts and alerts from ECCC. Their website is here and you can get their brand new app on iOS and Android.