Tag: Below-Normal Temperatures

Warmer Weather Ahead

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The Arctic ridge bringing seasonably cold temperatures to southern Mantioba will head out later this week. In its wake? Much warmer weather will return as temperatures climb back above seasonal values.

RDPS 2m Temperature Forecast valid 21Z Tuesday October 18, 2022
The colder weather will hang on for one more day in southern Manitoba, then warmer air will push into the region from the west.

Today will bring more cold weather; the Arctic high hasn’t quite left the region yet and will keep highs in the low single digits. Winds will be light and skies will be mostly sunny, so it shouldn’t be a bad day overall.

Beginning Wednesday, the Arctic high will start moving out of the region and the broader long-wave pattern will begin to break down. This will cut off the pipeline of Arctic air that’s been entrenched over the region and begin to allow milder air from the west to build in.

Wednesday will bring near-seasonal highs back to Winnipeg with a high near 10 °C. The winds won’t even be too much of an issue with light southerlies of 15 to 25 km/h. There will be a bit more cloud than Tuesday, so expected partly cloudy to mixed skies. Temperatures will still likely fall below zero again on Wednesday night.

On Thursday, a weak disturbance will drop southeastwards through the province. Temperatures will be similar to Wednesday, but most areas will see a mainly cloudy day. The cloud cover will keep it warmer on Thursday night with a low in the mid-single digits. 

Long Range Outlook

The sun will reappear on Friday across southern Manitoba while a potent low pressure system begins to develop in Alberta. As it tracks eastwards over the weekend, it will draw warmer air into southern Manitoba. Daytime highs will likely climb into the upper teens by Sunday with increasing southeasterly winds.

It should stay dry through the weekend, but as the system passes on Sunday night, the weather will turn more unsettled. Rain and/or snow will be possible to start off next week as cooler temperatures once again push back into the region.

The timing of this system could change a bit in the days ahead given how far out it is, but the general trend of warming into the weekend, then a notable cool-down by the middle of next week looks fairly reliable.

Enjoy nicer late-fall weather ahead!

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

Cooler With Some Unsettled Weather Ahead

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The cleanup is underway across many areas of Manitoba that were pummelled with strong winds and 30–60 cm of snow. The weather will mostly co-operate over the coming days with cool temperatures and a bit more snow.

The entire eastern Prairies will see very cool mid-April conditions in the wake of the storm exiting the region.

RDPS 2m Temperature Forecast valid 21Z Friday April 15, 2022
The entire eastern Prairies will see very cool mid-April conditions in the wake of the storm exiting the region.

Lingering light snow will taper off today as the storm continues to wind down over the region. Winds will continue to be breezy out of the northwest at 30 gusting 50 km/h. Most notable today will be the temperatures; they will stay well below seasonal values with a high in Winnipeg near -5 °C. Skies should finally clear out this evening with temperatures heading to a low near -10 °C.

A high pressure system moving into the province will bring clear skies on Saturday. Temperatures will continue to be cool with a high near -5 °C. Lows on Saturday night will fall into the mid-minus teens. Another low pressure system approaching the province will spread cloud cover into the region by Sunday morning.

Winnipeg and area will see cloudy skies on Sunday with light snow moving in for the afternoon and evening. Highs will reach close to 0 °C with southeasterly winds picking up to 30 km/h.

A low pressure system will spread snow along the Trans-Canada Highway corridor on Sunday with 10–15 cm near the international easing to 5–10 cm for many areas south of the Trans-Canada Highway corridor.

RDPS 24-hour Snowfall Accumulation Forecast valid 12Z Monday April 18, 2022
A low pressure system will spread snow into southern Manitoba on Sunday.

This system will spread another swath of snow across southern Manitoba, with 10–15 cm near the international border easing to 5–10 cm for many areas south of the Trans-Canada Highway corridor. The main uncertainty with this system is how far north it will push; relatively sharp changes in snowfall totals will mean small shifts north or south can substantially impact the amount of snow a location will see.

Snow will taper off overnight with the sun repeating for Monday. Daytime highs to start the new week will hover around 0°C.

Long Range Outlook

Temperatures will moderate only slightly next week, partly due to a cooler air mass and partly due to the snow cover across the region. Highs should climb above freezing for next week, but conditions may also turn unsettled.

A progressive system is forecast to move through the region mid-week, potentially bringing another shot of snow to the region. Early model guidance suggests that 10–15 cm is possible with this system, but it’s early and lots can change between now and then. It will likely fall as snow, but there may be a little bit of rain mixed into it.

The region will see a couple quiet days, then for the weekend some weather models are suggesting that another Colorado Low system may develop. This one wouldn’t bring more snow to the region; rather, it would likely result in a surge of warm air northwards and could result in rain for the region. But, being so far out, it shouldn’t be taken as much more than hand-waving conjecture at this point.

As a generalization, beginning Sunday, it looks likely that the region will see some additional precipitation every 2–3 days for a while. By next weekend, the region is more likely to see rain than snow as warmer, almost summer-like, temperatures begin to push towards the region.

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

Windy Start To A Cold Weekend Ahead for Southern Manitoba

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An Arctic high’s strong northwest winds will bring unseasonably cold temperatures to Southern Manitoba this weekend.

RDPS 10m Wind Forecast valid 15Z Friday March 25, 2022
Strong northwest winds will be in place over southern Manitoba today.

Strong winds blasting through the Red River Valley today will usher in much colder temperatures. Light snow will taper off this morning, leaving behind cloudy conditions as northwest winds of 50 gusting 70 km/h persist through the day. Temperatures will recover only slightly to a high near -6 °C this afternoon.

As the high pushes into the region this evening, skies will clear and the winds will ease. Temperatures will head down close to the -20 °C mark tonight.

RDPS 2m Temperature Forecast valid 09Z Sunday March 27, 2022
Very cold March temperatures will develop on Saturday night underneath the Arctic high over Manitoba.

The Arctic high will sit over Manitoba on Saturday, bringing temperatures some 10–20 °C below seasonal values to the region. Skies will be mainly sunny through the weekend with highs near -10 °C on Saturday warming to near -5 °C on Sunday. Overnight lows could dip below -20 °C on Saturday night. Warmer air will begin working into the region by Sunday evening and the low will be much warmer in the -10 to -15 °C range.

Long Range Outlook

Near-seasonal temperatures will return next week with highs back near freezing. Plenty of cloud cover will accompany it with what looks to be a good chance of some snow on Tuesday. The weather pattern looks pretty stable through the rest of the week with highs above freezing, lows below, and variable cloudiness.

Today’s seasonal daytime high in Winnipeg is 2 °C while the seasonal overnight low is -8 °C.

Bitter Cold Continues Across Southern Manitoba

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Winnipeg will stay locked in the grip of a deep freeze as a slow-moving Arctic air mass sits entrenched over the region.

RDPS 2m Temperature Forecast valid 12Z Wednesday February 23, 2022
Very cold temperatures will stay entrenched over Manitoba this week.

Temperatures in Winnipeg will sink over 15 °C below seasonal values this week with highs struggling to reach -20 °C. A bitterly cold Arctic air mass has settled over the region behind the train of storms that brought several waves of snow to the region last week. Unfortunately, this air mass is in no hurry and this week will bring little relief will from the cold.

Skies will continue to be mixed today as the region is grazed by a system moving through the United States. Skies will clear tonight, leaving sunny skies for the rest of the week. Daytime highs will sit below -20 °C through much of the week, only breaking into the mid-minus teens on Friday. Overnight lows will be, editorially speaking, terrible; lows will dip below -30 the next couple nights and climb into the low -20s on Thursday night.

Wind chill will be a notable danger today. Northerly winds of 20–30 km/h continue through the day and produce morning wind chills of -45 to -50 easing to the mid-minus 30s in the afternoon. Wind chills will dip back into the -40 to -50 range tonight.

Long Range Outlook

The Arctic grip will begin to break at the end of the week with highs near the -15 to -10 °C range returning to the region. A system moving through will bring a chance for some snow on Saturday, followed by cooler temperatures on Sunday. All indications are that near-seasonal temperatures will return through the first half of next week.

Today’s seasonal daytime high in Winnipeg is -6 °C while the seasonal overnight low is -17 °C.