Seasonal Temperatures And A Bit of Snow

Winnipeg will see near seasonal temperatures through the weekend with snow developing Saturday and tapering off Sunday.

The main weather system impacting Winnipeg over the next few days will be a large Colorado Low system moving through the Northern Plains. It will spread warmer air northwards into southern Manitoba today, finally bringing a near-seasonal high to Winnipeg. That warmer air moving into the region will also produce mixed skies today as cloud cover builds northwards. Temperatures will stay mild tonight with a low near -10°C and mostly cloudy skies.

Winnipeg will see snow build into the region on Saturday. Snow will spread northeastwards out of North Dakota into the Red River Valley midday. The city will see a near-seasonal high of -3°C and light winds. The snow will ease on Saturday night, leaving around 3-5 cm in Winnipeg with amounts of 5-10 cm to the south and east. Breezy northwesterly winds near up to 30 km/h will move into the region in the evening. Temperatures will dip to a low near -10°C.

GDPS 24hr. Snowfall Accumulation (10:1 SLR) valid 12Z Sunday March 10, 2019
Snow will spread across southeastern Manitoba on Saturday.

The cloud cover will stick around for Sunday with a continued chance for some light snow. Northwesterly winds near 30 km/h will keep temperatures cooler than Saturday with a high near -5°C. Skies will clear out on Sunday night with temperatures dipping back into the low minus teens.

Long Range Outlook

Winnipeg will see a sunny day on Monday with near-seasonal temperatures, but the reprieve will be short-lived. Most guidance continues to forecast another major Colorado Low developing early in the week. Winnipeg would be under the influence of this system form Tuesday through Thursday, and it would bring the potential for a wintery mix of precipitation across the province. Snowfall may end up being a significant concern with this system; some models show the potential for a band of 20-30 cm of snow slicing across the Red River Valley. With flooding concerns mounting, a foot of heavy, wet March snow certainly wouldn’t help the situation.

Today’s seasonal daytime high in Winnipeg is -3°C while the seasonal overnight low is -13°C.

More Snow With Steady Temperatures

Winnipeg will see 5 to 10 cm of snow beginning today as temperatures stay steady at below-seasonal values through the rest of the work week.

Winnipeg will see more snow push into the city this morning that will persist through much of the night. The snow will come in two batches; the first will move through midday before easing in the afternoon, then the second will develop in the evening and persist through the night. By the time the snow tapers off on Thursday morning, the city will likely see 5 to 10 cm of the white stuff. Once the snow moves off, the city will see mixed skies for Thursday that will further clear out for Friday.

Much of southern Manitoba will see 5 to 10 cm of fresh snow by the time the disturbance laves the province on Thursday morning.
Much of southern Manitoba will see 5 to 10 cm of fresh snow by the time the disturbance laves the province on Thursday morning.

Daytime highs will be fairly steady the next few days, generally around the -15°C mark. Overnight lows, however, will slowly drop as an Arctic high builds in from the west. The city will see a low near -21°C tonight and will then drop towards -27°C by the end the week.

Winds will stay light through much of the snow event today, but will pick up out of the northwest overnight and increasing to 30 gusting 50 km/h for Thursday. Those winds will gradually ease Thursday night into Friday.

Long Range Outlook

Temperatures will continue at below-seasonal values through the weekend, but nothing like the frigid cold seen last week. Daytime highs look to stay in the mid-minus teens while overnight lows dip into the -20s. Winnipeg will see little change heading into the first half of next week.

Today’s seasonal daytime high in Winnipeg is -8°C while the seasonal overnight low is -19°C.

Finally: Snow Brings A Break From The Cold

Winnipeg will see a much-welcome return to seasonal temperatures as snow moves into the region.

A developing disturbance called an inverted trough will move into Manitoba today, bringing cloud, light snow, and much warmer temperatures. Winnipeg will see sunshine this morning replaced by increasing cloudiness in the afternoon. As the cloud pushes in, temperatures will climb to a high around -10°C. Light snow will spread across the Red River Valley this evening and continue through the night. The city should see close to 5 cm of snow by Tuesday morning. With the cloudy skies and inverted trough moving through, temperatures should stay steady near -11°C through the night.

The city will see light snow through much of Tuesday with another 2 to 4 cm likely. Temperatures will climb to a high near -9°C as the inverted trough continues through the province. Snow will taper off sometime late in the afternoon or early evening leaving behind mostly cloudy skies with a chance of flurries. Temperatures will head back to a low near -20°C on Tuesday night.

Much of southern Manitoba will see 4-8 cm of snow over the coming 48 hours, although note that this forecast snowfall map is likely producing slightly higher amounts along the Manitoba-U.S. border than expected.
Much of southern Manitoba will see 4-8 cm of snow over the coming 48 hours, although note that this forecast snowfall map is likely producing slightly higher amounts along the Manitoba-U.S. border than expected.

Another disturbance tracking along the U.S. border will bring more cloud and a chance of light snow to the region on Wednesday. Winnipeg will have cooler high near -15°C. After this disturbance passes, another Arctic high will slowly begin building back into the region. Overnight lows will dip down to around -22°C on Wednesday night.

Long Range Outlook

The rest of the week will bring variable cloudiness and below-seasonal temperatures. The cool conditions won’t be as extreme as the last cold snap, though, with daytime highs in the minus teens and overnight lows dipping into the -20s.

Today’s seasonal daytime high in Winnipeg is -9°C while the seasonal overnight low is -19°C.

Light Snow Can’t Beat The Cold

Winnipeg will see cold conditions right through weekend, punctuated by light snow midweek.

Winnipeg will continue to see periods of light snow and seasonably cool conditions this week. Today, light snow will gradually taper off over the city this morning leaving behind cloudy skies with some occasional flurries. Temperatures will top out around -18°C today, but a breezy northerly wind of 20 to 30 km/h will keep it feeling cold. The chance for flurries or light snow will continue tonight with a low near -25°C.

Thursday will be a cold day in Winnipeg. Temperatures will only climb to a high near -21°C while a northerly wind near 30 km/h produces wind chill values in the -30 to -35 range. The upper trough moving through will continue to produce a chance of flurries or some organized light snow. The isn’t forecast to receive much snow; one will likely need to head into south-eastern Manitoba to see more than 2 cm fall on Thursday. Skies will begin to clear out on Thursday evening with temperatures plummeting back down into the -30s overnight. Winds will continue at 20 to 30 km/h for much of the night before diminishing early Friday morning.

Southern Manitoba will be grazed by more snow overnight Wednesday into Thursday.
Southern Manitoba will be grazed by more snow overnight Wednesday into Thursday.

Friday will be a fairly sunny and cold day through the Red River Vally as an Arctic ridge moves through. Under light winds, the temperature will climb to only around -23°C. The city may see some cloud push in overnight, but not before temperatures dip down to around -30°C again.

Long Range Outlook

Cloudy skies return to the city on Saturday while below seasonal temperatures stay right through the weekend. Forecasts show a moderation in temperature to only slightly below seasonal values to start next week, but no significant warming trend is on the horizon.

Today’s seasonal daytime high in Winnipeg is -10°C while the seasonal overnight low is -21°C.