Tag: Windy

Snowy Weekend Ushers Winter Blast Into Southern Manitoba

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Winnipeg will see a couple more mild days before a passing low brings snow, gusty northerly winds, and much colder temperatures to the region.

RDPS 2m Temperature Forecast valid 21Z Friday December 3, 2021
Southern Manitoba will more seasonably mild conditions on Friday and Saturday.

A strong, zonal flow aloft will continue to spread mild Pacific air across the Prairies over the next couple days. This will keep Winnipeg’s high temperatures in the -5 to 0 °C range through Saturday under variable cloudiness.

The next notable weather system will be a low pressure system moving through the northern United States this weekend. This system will bring two distinct weather events to southern Manitoba, beginning on Saturday night.

The first phase of this system will be an area of light snow that spreads across southern Manitoba on Saturday night. Primarily from the Trans-Canada Highway (TCH) corridor and south, light snow will move from southwestern Manitoba on Saturday evening to Lake of the Woods by midday Sunday. Accumulations with this first wave of snow will increase from 0–2 cm along the TCH corridor to 5–10 cm along the international border.

RDPS 24hr Snow Accumulation Forecast valid 00Z Monday December 6, 2021
Another swath of snow will fall across southern Manitoba on Saturday night into Sunday, but there is some uncertainty in how far north it will extend.

The second phase of this system will be an arctic cold front that sweeps through the region Sunday afternoon into the evening. This front will support some flurries as it moves through as breezy northerly winds shift to the northwest. Temperatures will hover around -6 or -7 on Sunday, but for those planning on attending the football game, note that wind chills will be closer to -15 and it’ll be a brisk wind that develops later in the afternoon.

RDPS 2m Temperature Forecast valid 12Z Monday December 6, 2021
Bitterly cold Arctic air will surge southwards through the Prairies by Monday morning with widespread temperatures of -20 to -30 °C.

Skies will clear out behind the front on Sunday night as winds die off. Temperatures across the region will plummet to a low of -20 to -25 °C.

Long Range Outlook

Below seasonal temperatures will linger over the region to start next week with daytime highs of -15 to -20 °C on Monday and -15 to -10 °C on Tuesday. Seasonal conditions will move in on Wednesday, followed by a warmer Thursday with a chance of snow. Cooler temperatures are forecast to return for next weekend.

Today’s seasonal daytime high in Winnipeg is -7 °C while the seasonal overnight low is -16 °C.

Shaking Off the Arctic Chill

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The Arctic air seen across southern Manitoba on Thursday is already long-gone, replaced by a push of Pacific air that will bring milder weather back to the region.

RDPS 2m Temperature Forecast valid 21Z Friday November 26, 2021
Milder temperatures will move into Manitoba today with highs climbing above the freezing mark over the southwest corner of the province.

The cold trough that brought lows in the -20s to southern Manitoba on Thursday morning has already moved well off to the east. Taking its place is a much milder westerly flow that will push Pacific air across the Prairies. This will push highs back up into the [seasonably mild] -5 to 0 °C range across southern Manitoba over the next few days.

Overnight lows will also settle to warmer values, generally in the -5 to -10 °C range.

RDPS Total Accumulated Freezing Rain valid 12Z Saturday November 27, 2021
Some patchy light freezing rain is possible across portions of southern Manitoba on Friday night.

The arrival of warmer temperatures will also bring more cloud back into the region. A trough moving across the province will bring cloudy skies later today that will stick around for the night. A few flurries or even some patchy freezing rain is possible across southern Manitoba tonight ahead of a weak cold front that moving southeastwards. Skies will clear out behind the front on Saturday with blustery northwest winds.

A weak Arctic ridge will move into Manitoba on Saturday night, bringing cooler temperatures back to the region. Lows may dip below -10 °C in Winnipeg, but the coldest temperatures will be over western Manitoba. Overnight lows in the -15 to -20 °C range will be possible in that region.

RDPS 10m Wind Forecast valid 21Z Saturday November 27, 2021
Blustery northwest winds will develop over southern Manitoba on Saturday as a weak high builds into the region.

More Pacific air will surge back across the Prairies on Sunday, bringing another push of cloud to the region. A few flurries will be possible Sunday evening as a warm front advances eastwards across southern Mantioba.

Long Range Outlook

Little change to the weather pattern is in store next week. Generally mild conditions will continue with the occasional surge of cooler air bringing brief returns to seasonal temperatures. Southern Manitoba should see sunshine to start the week, but cloudier conditions are forecast for the latter half of the week.

A change in the weather pattern may come at the end of next week. Several weather models show indications of an Alberta Clipper system moving through the eastern Prairies on Friday.

Today’s seasonal daytime high in Winnipeg is -5 °C while the seasonal overnight low is -13 °C.

Arctic Chill Moves In This Weekend

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Much colder weather will arrive in southern Manitoba this weekend as a blast of Arctic air moves into the Prairies.

Before the cold, though, Winnipeg will see a couple days of near-seasonal conditions. A couple of weak systems crossing the region will bring partly cloudy skies and highs on the milder side of the minus single digits. Today will start off a bit breezy with southeast winds near 30 gusting 50 km/h, but the wind will ease through the day.

Saturday should be a pleasant day with light winds as a ridge of high pressure moves over the region.

The real change in the weather will begin on Saturday night. An Alberta Clipper will cross the Prairies Saturday and Sunday while a potent low pressure system strengthens over Hudson Bay. This system will bring some light snow to southern Manitoba on Saturday night as a cold front surges through the province. Behind this front, the clipper and Hudson Bay system will work together to funnel the coldest surge of Arctic air Winnipeg has seen so far this season.

Temperatures will fall to around -7 °C by Sunday morning, then continue to drop to around -10 °C through the day. Winds will stay out of the northwest at 30–40 km/h through the day as Arctic air pushes into the region. Winnipeg may see a few more flurries through the day with morning cloud cover replaced by streamers from Lake Manitoba.

RDPS 2m Temperature Forecast valid 12Z Monday November 22, 2021
Winnipeg’s first taste of bitter winter cold will come on Monday morning with temperatures dipping to -20 °C or colder.

The wind will ease on Sunday evening as a ridge of high pressure moves into the province. Temperatures will dip to a low near -20 °C on Sunday night with mainly clear skies.

Long Range Outlook

Cooler weather looks to stick around next week as winter settles into Manitoba. The region will likely see variable cloudiness through the week, but more snow looks largely limited to Wednesday when another disturbance moves through the province. While no bitterly cold temperatures are in the forecast, the region will be heading into a pattern of near- to below-seasonal temperatures.

Today’s seasonal daytime high in Winnipeg is -3 °C while the seasonal overnight low is -11 °C.

Mid-Week Low Brings Warm Weather To An End

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A low pressure system that will move through the region will bring an end to Winnipeg’s stretch of beautiful late-fall weather. Rain, snow, and cooler conditions are on the way.

But first, a couple more pleasant November days lie ahead for the city. Winnipeg will see plenty of sunshine over the next couple days with highs in the 8–10 °C. Winds will be breezy today out of the west at 20–30 km/h, then ease slightly for Tuesday. Overnight lows will dip to around the freezing mark.

On Wednesday, a low pressure system will move from Saskatchewan into southern Manitoba, spreading cloud and rain across the province. Most areas in the Red River Valley should see 5–10 mm of rain through the day. Winds will start out at 20–30 km/h out of the southeast, then ease to light as the low moves over the Red River Valley in the evening. Temperatures will be much cooler with a high near 3 °C.

RDPS Forecast 12hr. Precipitation Accumulation valid 00Z Thursday November 11, 2021
Much of southern Manitoba will see rain on Wednesday.

Rain may become mixed with snow late in the day, then will change completely over to snow sometime overnight as temperatures drop below freezing.

Long Range Outlook

The seasons will change quickly this year as the region will look a lot more like winter by the end of Thursday. Moderate northerly winds of 30–40 km/h will develop behind the low and continue to usher cooler air into the region. Snow will continue through much of the day on Thursday with 5–10 cm accumulation likely by Thursday evening. Some periods of light snow will likely continue through Friday, and a bit of light snow may be possible with a weak low on Saturday.

Temperatures will hover near seasonal values right through the weekend with highs around the freezing mark. Overnight lows will dip into the mid-minus single digits.

Today’s seasonal daytime high in Winnipeg is +1 °C while the seasonal overnight low is -8 °C.