Cool Conditions To Bring Gradual Melt

Cooler conditions will linger in Winnipeg through the rest of the week, bringing a gradual melt to the pile of snow that fell over the last 48 hours.

The upper vortex responsible for 23 cm of snow in Winnipeg over the past 48 hours — the biggest snow event of this winter/spring season — is now trundling off towards eastern Canada. A few flurries will linger in its trail through the day. The snow cover and a cool north wind near 20 km/h bring a cool high near 0 °C. Skies will stay mostly cloudy tonight with light winds and a low near -4 °C.

On Thursday, a trough of cooler air aloft will move into southern Manitoba. It will bring a mix of sun and cloud and northerly winds up to around 20 km/h again. Any snow associated with this system will likely stay over southwestern Manitoba with light amounts. Temperatures will climb to a high around 3 °C in Winnipeg. Warmer highs are likely over the western Red River Valley where slight downsloping from the escarpment helps temperatures into the upper single digits. Mixed skies will stay for the night with temperatures dipping to a low near -5 °C.

RDPS 2m Temperature Forecast valid 21Z Thursday April 15, 2021
Southern Manitoba will see cool temperatures on Thursday, save for the western Red River Valley where downslope winds near the escarpment bring near-seasonal warmth.

A broad area of high pressure will build into the region on Friday, bringing a bit more sun. Winds will pick up out of the north into the 20–30 km/h range with a high near 3 °C. Note that it could get warmer than that, highly depending on how quickly the snow pack over the region melts. Given the discrepancy in snow depth, some areas may see highs a few degrees warmer than others on Friday. Skies will clear out on Friday night with temperatures heading to a low near -7 °C.

Long Range Outlook

Temperatures will return closer to seasonal values on Saturday, then another low pressure system is forecast to move through on Sunday. This disturbance will bring more cloud and a chance for some rain or snow. Cooler and cloudier weather starts next week, followed by a gradual return to seasonal temperatures and generally sunny conditions.

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

Mixed Bag of Weather Ahead

Winnipeg will see mild temperatures turn seasonal mid-week with variable cloudiness over the next few days.

A mild Pacific flow aloft will keep seasonably mild temperatures in Winnipeg for a couple more days. Temperatures will stay cool through the first half of the day as a high quickly slides across the province. Winds will pick up out of the southeast to 15–25 km/h later today with temperatures popping up to around 7 °C. The city will see a low near +1 °C tonight with increasing cloud.

Tuesday will bring mostly cloudy skies to the region as cloud streams northwards from a potent low crossing the northern Plains. Temperatures will climb up to a high near 10 °C with light winds. None of the organized rain from this system will reach southern Manitoba, but a few light rain showers or flurries may be possible in the evening as a cold front pushes southeastwards. That cold front will bring northwest winds up to 30 gusting 50 km/h on Tuesday night with a low down to around -6 °C.

RDPS 2m Temperature Forecast valid 21Z Tuesday March 23, 2021
The Red River Valley will see mild temperatures on Tuesday, but a cold front pushing through late in the day will usher seasonal temperatures back into the region.

Wednesday will bring gradual clearing to the region as that strong low pushes off into eastern Canada. The northwest winds will persist through the day and keep temperatures cooler. Winnipeg will see a high near +1 °C with some sun showing up later in the day. The region should see a few clouds through Wednesday night as winds ease. Temperatures will head to a low near -6 °C again.

Long Range Outlook

Much of the second half of the week will see variable cloudiness with seasonably mild highs of +4–8 °C. Some precipitation may be possible Friday night into Saturday morning, with near-seasonal conditions on Sunday. A warmer push is forecast for next week, with several days of highs above 10 °C possible.

Today’s seasonal daytime high in Winnipeg is 2 °C while the seasonal overnight low is -9 °C.

Sunny and Warm Weather Ahead

Winnipeg will see plenty of sunshine over the coming days as spring warmth builds into the region.

A building upper ridge over the coming days will support seasonably mild weather in Winnipeg over the coming days. Skies will clear in Winnipeg this morning, leaving the city with sunshine as winds pick up out of the northwest to around 20 km/h. Temperatures will climb to a high near 8 °C. The wind will ease tonight with a low near -6 °C.

500mb Wind Forecast valid 18Z Thursday March 18, 2021
A broad upper ridge will extend from the western United States northwards over the Canadian Prairies through the second half of the week.

The next couple days will bring plenty of sun to the city with highs near 10 °C on Thursday and near 13 °C on Friday. Overnight lows will also climb; Winnipeg will dip to around freezing on Thursday night, and to +3 °C on Friday night. Winds will be light on Thursday, but a moderate southerly wind will develop on Friday as the warm air moves in. The wind will strengthen out of the south on Thursday night into the 20–30 km/h range, then up to 40–50 km/h on Friday. Wind will ease into the 20–30 km/h range on Friday night with partly cloudy skies.

Long Range Outlook

Winnipeg will see warm weather this weekend with highs in the 10–15 °C range and increasing cloud. Generally unsettled conditions will move through Saturday night through Monday, bringing the chance of showers to the region. Once that passes, temperatures will stay seasonably mild with variable cloudiness.

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

Quiet, Mild Weather Ahead

Winnipeg will see a quiet start to the week weather-wise with seasonably mild conditions continuing.

A slow-moving area of high pressure will keep Winnipeg seasonably warm and dry over the coming days, but cloud cover will gradually encroach from the west. Over the coming days, the highs and lows will stay steady for the city with highs around 6 or 7 °C and lows near -2 or -3 °C. Today, the city will start off with sunny skies, but southerly winds will strengthen to 30 gusting 50 km/h and a few clouds will push in from the west. These partly cloudy skies will continue overnight, but the winds will ease.

RDPS 2m Temperature Forecast valid 21Z Tuesday March 16, 2021
While the Red River Valley will enjoy seasonably mild temperatures, it will be a bit cooler across the central Prairies.

On Tuesday, the city will see mixed skies with cloudier conditions over southwest Manitoba. A few flurries or rain showers are possible in this area of cloud, but will likely stay over western Manitoba and the central Interlake. The clouds will thicken up on Tuesday night for the city.

Winnipeg will see mixed skies on Wednesday as morning cloud clears out for some portion of the afternoon. Winds will be light again as a new area of high pressure builds into the province.

Long Range Outlook

Warmer weather will begin moving into the province for the end of the week with highs climbing back into the low teens and lows above freezing. Skies should be mainly sunny through the rest of the work week.

A large pattern shift will occur this weekend, shifting the region into a more unsettled pattern. Cloud cover is forecast to increase this weekend, and several chances for rain exist through the first half of next week.

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