Favourable Melt Weather Continues With Near-Seasonal Temperatures

The Red River Valley will continue to see excellent melt conditions to start the week with near-seasonal temperatures and little precipitation.

Today will be the warmest day of the next three for Winnipeg. A low pressure system crossing northern Manitoba will draw warmer air across the southern half of the province. West-southwest winds of 20 to 30 km/h will send Winnipeg’s high to a seasonal 6°C. The city will see mixed skies through much of the day. The cloud cover will thicken up overnight as a cold front approaches. Winnipeg should see a low near -3°C tonight.

A cold front will push through Winnipeg on Tuesday morning, bringing a chance of flurries and northwesterly winds of 30 gusting 50 km/h. The chance for flurries should end midday, but the city will continue to see mixed skies through the afternoon. Daytime highs will be cooler behind the cold front; Winnipeg should reach around 0°C. A ridge of high pressure will build into the region on Tuesday night, bringing clearing skies and diminishing winds. The temperature drops to a low near -6°C.

Convectively driven flurries and/or showers will move across southern Manitoba on Tuesday morning.
Convectively driven flurries and/or showers will move across southern Manitoba on Tuesday morning.

Wednesday will be a pleasant day for Winnipeg. The ridge of high pressure will keep winds relatively light and keep skies sunnier than not. The city will see a high near 3 or 4°C, but the light winds will help it feel warm. On Wednesday night, southeasterly winds will begin to develop ahead of a low pressure system developing over Saskatchewan. These winds will help keep the low a bit milder near -3°C, but also likely bring in some cloud cover towards Thursday morning.

Long Range Outlook

Winnipeg will see unsettled conditions on Thursday into Friday as a low pressure system moves through and a cold front drops southwards. There’s a good chance the city may see some rain, particularly late Thursday, but outside of that it looks like it will be cloudier with just a chance of precipitation. This disturbance will help shift the Prairies into a more zonal flow, bringing a more sustained warm-up through the weekend into next week.

Today’s seasonal daytime high in Winnipeg is 5°C while the seasonal overnight low is -6°C.

Northwest Flow Brings Near-Seasonal Temperatures And Flurries

A persistent northwesterly flow will bring near-seasonal temperatures to Winnipeg for the weekend along with a couple chances for flurries.

Winnipeg will start off today with cloudy skies and some flurries moving though the region. This unsettled weather is the result of a low pressure system called a “Mackenzie Low” moving through the region.1 Winnipeg won’t see much more than some flurries; most of the snow is falling through central Manitoba. A cold front will swing through midday, ushering in northerly winds up to 40 gusting 60 km/h. The cloud cover will break up and clear out through the afternoon behind the cold front. The daytime high will be a near-seasonal +2°C, but temperatures will slowly fall behind the cold front to around -2°C by the evening. Temperatures will drop to a low near -10°C under mainly clear skies tonight. Those northwesterly winds will gradually ease through the evening.

The Mackenzie Low crossing the province today will bring flurires to Winnipeg, but central Manitoba will see accumulating snow.
The Mackenzie Low crossing the province today will bring flurires to Winnipeg, but central Manitoba will see accumulating snow.

On Saturday, Winnipeg will see partly cloudy to mixed skies as a ridge of high pressure moves through. Winds will pick back up out of the northwest to around 20 km/h as temperatures climb to a high near +1°C. On Saturday evening, more cloud will begin working into the region as another Mackenzie Low approaches. This one will be much weaker than the last, bringing just a few flurries or light snow to the region. Temperatures will dip to a low near -4°C.

The city should see mixed skies on Sunday with a continued chance of flurries through the morning. Winds will pick up from the northwest at 20 km/h and temperatures should climb to a high near +3°C. Temperatures will dip to a low near -4°C on Sunday night under mixed to cloudy skies.

Long Range Outlook

Seasonal temperatures will gradually increase to above-seasonal temperatures next week as the northwesterly flow aloft breaks down, giving way to a more westerly flow. This pattern change will result in a constant stream of quick-moving disturbances, though, likely bringing variable cloudiness and occasional chances for precipitation.

Today’s seasonal daytime high in Winnipeg is +4°C while the seasonal overnight low is -7°C.

  1. A Mackenzie Low is a compact but moderately strong low pressure systems that develop over the Mackenzie region of the Northwest Territories and then typically progress southeastwards, embedded within a broad northwesterly flow.

Mild Start To The Weekend, Cooler Sunday

Winnipeg will continue to see seasonably mild temperatures until a cold front moves through on Saturday evening.

Winnipeg will continue to see seasonably warm temperatures today with light southerly winds. There may be a few fog patches around this morning, but those will burn off as the sun rises. The city should see a high near +5°C, but like the past couple days, temperatures may climb several degrees higher than that in areas where more of the snow has melted away. After any morning fog burns off, the city will see mainly sunny skies. Temperatures will cool down to around -7°C tonight with another chance for a few overnight clouds or fog patches.

More warm weather is on the way for Saturday, too! More warm air will spread across the province by a powerful storm system moving across Hudson Bay. Winnipeg will see highs climb up to around 6 or 7°C but – broken record here – areas of the city with less snow could see temperatures climb into the double digits. Winds will be a bit more noticeable, though, out of the south-southwest at 20 km/h. Skies should start out mainly sunny, but the city may see partly cloudy skies develop in the afternoon.

A slight cool-down arrives on Saturday evening as a cold front slumps southwards through the region. It will bring some cloud, a chance of flurries, and northeasterly winds of 30 to 40 km/h. Temperatures will cool to a low near -6°C on Saturday night.

Sunday will bring sub-zero daytime highs back to the city…but just barely. Under clearing skies, Winnipeg will see temperatures climb to a high near -2°C with those northeasterly winds persisting into the afternoon. The wind will ease in the evening followed by temperatures cooling to a low near -11°C.

Long Range Outlook

Warm weather returns next week with another surge of mild Pacific air. Unlike the upper ridge which dominated the region this week and kept skies clear, a more unsettled pattern is forecast. This will result in variable cloudiness with a few chances for precipitation through the week. That said, no major precipitation events look to be on tap for the region, so favourable melt conditions look like they’ll continue.

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

RDPS 2m Temperature Forecast Valid 21Z Tuesday March 19, 2019

Spring Melt Continues This Week in Winnipeg

Seasonably mild temperatures will continue this week in Winnipeg, continuing a slow and steady spring melt across the region.

A potent upper-level ridge building into the Prairies will send another push of warm air across the region. A weak disturbance will push a warm front through the region today, bringing Winnipeg plenty of cloud cover. That same front will bring the city a chance for some afternoon flurries. Temperatures will climb to a high near +1°C with winds out of the south near 20 km/h. Skies will stay mostly cloudy tonight with a low near -4°C and light winds.

Tuesday will bring mostly cloudy skies to the region with westerly winds climbing into the 20 to 30 km/h range. Winnipeg will see a high near +3°C. The cloud cover should breaking up in the evening as temperatures head to a low near -3°C. Those westerly winds will ease overnight.

On Wednesday, weather systems finally leave the region alone with just a weak surface ridge1 working into western Manitoba. This will give Winnipeg light westerly winds with temperatures climbing to a high near +3 or +4°C. The city will see mixed skies, which means it will be the first day of the next few to offer the potential for lots of sunshine. If the sun does make an appearance, it will likely result in a large range of temperatures across the city. The high of +3°C is for the weather station at the airport, which is in the middle of a snow-covered field. Areas of the city that have more buildings, or have much of the snow cleared and/or melted already will likely see temperatures climb higher, potentially up to +7 or +8°C.

Temperatures will head to a low near -2°C on Wednesday night with clearing skies.

Long Range Outlook

The rest of the week is looking great; the upper ridge will bring benign weather to the region! Winnipeg can expect a fair amount of sunshine, light southerly winds, and daytime highs in the +4 to 8°C range!

This also means that milder temperatures will spread south of the border. The region will be moving into the spring flood season over the next couple weeks. As it does, flood water will begin weakening ice cover on rivers and lakes. Remember to exercise caution around frozen waterways.

Today’s seasonal daytime high in Winnipeg is 0°C while the seasonal overnight low is -11°C.

  1. Not to be confused with the upper-level ridge moving into the region!