Tag: MBwx

Conditions Settling as Colder Temperatures Build In

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Skies will gradually clear this weekend in Winnipeg as the Polar Vortex slumps towards the region.

RDPS 2m Temperature Forecast valid 21Z Sunday February 9, 2025
Temperatures will cool this weekend, but even colder weather will be pushing into the Prairies by the end of the weekend.

A weak disturbance dropping through the region will bring mixed skies to the Winnipeg area today. Temperatures will be similar to yesterday with a high in the -10 to -15 °C range, but winds will be much lighter at only around 15 to 20 km/h.

Skies will clear out a bit tonight, but a disturbance moving through the United States will spread a bit more cloud into southern Manitoba overnight into Saturday. Temperatures will dip down into the -25 to -20 °C range overnight with light winds.

On Saturday, Winnipeg will again see mixed skies with some morning cloud breaking up into the afternoon. Temperatures will be cooler with highs dipping to the -20 to -15 °C range with light winds.

By Saturday evening, the next big pattern shift for the region will be underway. An axis of colder air will begin building into the Prairies as the Polar Vortex begins to slowly drop southwards through the Arctic. This will entrench this first temperature drop into the region through the rest of the weekend.

Lows will dip into the -30 to 25 °C range on Saturday night with mainly clear skies and light winds.

On Sunday, a weak disturbance slumping through along the leading edge of colder air will slide through the region. It will bring mixed to cloudy skies with a chance of flurries to the region. For the Winnipeg area, a bit of snow will be most likely in the afternoon, while it will be earlier to the north and west. Daytime highs will climb back into the -20 to -15 °C range.

Some clouds will linger on Sunday night ad temperatures dip into the mid-minus 20s.

Long Range Outlook

Next week will be dominated by a single weather feature: the Polar Vortex. It will continue to drop southwards and build into the Prairies, bringing cold weather to the entire region.

Daytime highs will drop below -20 °C early next week with lows dipping close to -30 °C. There will be little change in the following 10 days. Daytime highs will largely sit in the -20s, save for the occasional passing disturbance that brings highs into the low minus teens. Overnight lows will dip into the low -20s or -30s many times right into mid-February.

It will be a prolonged stretch of cold weather that shows little sign of breaking down until late in the month. Extreme cold warnings will likely be issued by the weather office at times next week for the region.

We hope you all have a great weekend and we’ll see you back here in the deep freeze next week!

Today’s seasonal daytime high in Winnipeg is -10 °C while the seasonal overnight low is -20 °C.

#awm/below_seasonal_temperatures #Winnipeg #MBwx

Warming up in Winnipeg, but Colder Temperatures Lurk Nearby

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Temperatures are warming up in Winnipeg, but a battle between warm and cold air is setting up over the province.

RDPS 2m Temperature Forecast valid 06Z Saturday January 25, 2025
A cold front will sweep through southern Manitoba on Friday night, bringing gusty northwest winds and some blowing snow.

To end the work week, a warm front will push through the Winnipeg area this morning. This front will bring a couple centimetres of light snow and moderate southerly winds as it pushes through. The snow will ease midday behind the front with winds shifting to the west. Temperatures will climb to a high near -2 °C this afternoon.

More snow will move into the region this evening, driven by a cold front following the warm front through the province. Another couple centimetres of snow will fall along with northwest winds up to 40 gusting 60 km/h. These winds will send temperatures back down into the mid-minus teens tonight and bring some blowing snow to the region.

Saturday will bring cooler, near-seasonal temperatures back to the region with a high just under -10 °C. Northwest winds will continue through the day at around 30 gusting 50 km/h, then ease off in the evening. A few flurries will be possible in the morning, then skies will clear. Another warm front will push into the region overnight, warming temperatures from a low in the mid-minus teens up to around -10 °C by Sunday morning.

On Sunday, a southwesterly breeze will bring mixed skies as temperatures climb into the -5 to 0 °C range. Temperatures will continue to warm towards the freezing mark on Sunday night as westerly winds of 20 to 30 km/h continue.

Long Range Outlook

Heading into next week, long-range forecasts show mild conditions for Winnipeg with daytime highs regularly near the freezing mark. There’s some uncertainty, though, as to whether the warmth will be able to stay in place over the region.

RDPS 2m Temperature Forecast valid 21Z Monday January 27, 2025
A sharp temperature gradient will set up over Manitoba next week, with above-freezing highs and the south and Arctic cold in the north.

The Polar Vortex is forecast to dip southeast into eastern Canada, and a strong temperature gradient will likely set up across Manitoba as a result. Daytime highs could reach above freezing over parts of southern Manitoba while temperatures into the -20s and -30s will be possible over northern Manitoba. With such a strong temperature gradient in place over the province, minor changes in front location could result in large swings in expected temperatures.

It will likely be a mild week next week, but minor features could also result in brief outbreaks of rather cold temperatures later in the week.

Today’s seasonal daytime high in Winnipeg is -12 °C while the seasonal overnight low is -23 °C.

Bitter Cold Slowly Loosens Its Grip on Southern Manitoba

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Brisk southerly winds will move through southern Manitoba today as the bitter cold eases across the region.

RDPS 2m Temperature Forecast valid 15Z Tuesday January 21, 2025
Moderate southerly winds will develop in the cold temperatures over the Red River Valley this morning.

It’s a cold start to the day, but a low pressure system dropping into the region from northern Saskatchewan is slowly dragging some milder temperatures back towards the region. It will push a warm front towards the region this morning, bringing light snow to the Red River Valley alongside strengthening southerly winds.

Those winds will climb to 40 gusting 60 km/h hour this morning. Combined with the falling snow, the recent cold, and the ice crystals that fell across the region over the weekend, it’s likely that we’ll see widespread blowing snow through the Red River Valley with some near-blizzard conditions possible on area highways running west-east.

Those southerly winds will keep wind chill values locked into the -30s despite the temperature warming into the -20 to -15 °C range.

As the low moves into southern Manitoba this afternoon, the winds will ease as the light snow mostly pushes out of the region. Some lingering flurries will be possible into the evening as temperatures reach as high as around -15 °C.

The low will exit the region overnight, bringing northerly winds back that usher in another push of Arctic air. Temperatures will dip close to -20 °C on Tuesday night under clearing skies. Temperatures will only recover a few degrees on Wednesday with breezy northwest winds around 30 gusting 50 km/h. Some local blowing snow is likely in the areas surrounding Winnipeg and skies should be partly cloudy to mixed.

Temperatures will head back into the -30 to -25 °C range on Wednesday night, but easing winds should keep wind chill values to the mid-minus 30s or so.

Thursday will be a cool day with temperatures returning to a high in the low minus teens under sunny skies.

Long Range Outlook

On Friday, a low pressure system moving through the southern Arctic will push a much broader swath of milder temperatures across the Prairies. For Winnipeg, this will mean temperatures won’t drop much on Thursday night as southerly winds up to 30 gusting 50 km/h redevelop through the Red River Valley.

On Friday, more cloud and light snow will move through the region as temperatures warm back up into the low minus single digits.

The weekend should bring pleasant winter weather with near-seasonal temperatures across the Red River Valley with a couple chances of light snow.

Looking ahead to the longer-range trends, it looks like January should wrap up trending on the milder side, though early February could bring another outbreak of bitterly cold air. There are no major snowfall events in the short or medium-range outlook for the region.

Today’s seasonal daytime high in Winnipeg is -13 °C while the seasonal overnight low is -23 °C.

Clouds Move In As Temperatures Warm

Brad 1 Comment

Cloudier conditions will move back into Winnipeg as a major pattern change brings long-term warming to the region.

RDPS 2m Temperature Forecast valid 12Z Saturday December 21, 2024
Warmer weather will begin working east across the Prairies on Friday night.

After a sunny start today, cloud cover will gradually build into southern Manitoba as warmer air gradually pushes across the Prairies. The weather pattern over the next week or longer will be heavily impacted by the large-scale shift of the upper-level weather pattern. The Polar Vortex, which has been anchored over Baffin Island in Canada’s Eastern Arctic, is shifting back towards the North Pole, and will then continue to move into the Arctic Ocean north of Siberia. This will allow Pacific air to wash east across the Prairies, sending temperatures, eventually, to well above seasonal values.

For Winnipeg, skies should become mixed later this afternoon and cloudy overnight. Temperatures will climb to a high near -18 °C with light winds shifting southerly.

Skies will cloud over tonight with south winds picking up to around 20 km/h. Temperatures will dip into the -20s this evening, then warm to around -15 °C by morning with the thickening cloud.

The weekend will bring cloudy skies to Winnipeg with highs just below -10 °C on Saturday and just a bit warmer than -10 °C on Sunday. Some light snow will be possible on Saturday as a warm front pushes across the region, but no notable accumulations are expected. Overnight lows will sit in the -15 to -10 °C range both Saturday night and Sunday night. Additionally, southerly winds of 30 to 40 km/h will develop over the region for Saturday, but should be calmer on Sunday.

Long Range Outlook

Heading into the holidays, warmer weather will continue to build across southern Manitoba. Temperatures will climb to around 0 °C by Christmas Day, then continue to warm into the 0 to +5 °C range for much of the rest of the week.

No significant precipitation is expected next week. The warmer conditions will last through next weekend, then a crash back towards colder weather is likely for the new year.

Today’s seasonal daytime high in Winnipeg is -11 °C while the seasonal overnight low is -21 °C.