Tag: Below-Normal Temperatures

Snowy Transition Into the Deep Freeze

Brad

A disturbance tracking through Manitoba will bring accumulating snow tonight followed by much colder temperatures.

It will be a seasonably cool day in Winnipeg today with a high near -16°C as clouds spread into the region ahead of the approaching disturbance. Winds will pick up out of the southeast this afternoon to 30 gusting 50 km/h, producing uncomfortable wind chills in the -25 to -30 range. Snow will spread across the Red River Valley later this afternoon, but will stay light until the evening. Temperatures will continue to rise through the night as the wind gradually eases.

Skies will stay cloudy on Thursday as the snow tapers off through the day. Winnipeg will likely end up with a total of 10 to 15 cm of fresh snow from this system. Temperatures will climb a bit to a high near -11°C. The cloud cover will begin to break up on Thursday night with winds picking up out of the west to around 20 km/h. Temperatures will head to a low near -22°C.

NAM 24hr. Snowfall Accumulation (10:1 Ratio) valid 21Z Thursday January 9, 2020
Southern Manitoba will see a widespread accumulating snow Wednesday night into Thursday with some areas receiving as much as 10 to 15 cm.

The sun will return on Friday, but unfortunately it’s because of a large Arctic ridge moving into the province. As a result, Winnipeg will see seasonably cold temperatures with a high of only -18°C. Those westerly winds will continue for much of the day, gradually diminishing through the latter half of the afternoon. Skies will be partly cloudy over the region for much of the day, but will clear completely for Friday night. With calm winds, temperatures will head to a low near -30°C.

Long Range Outlook

The cold weather will be sticking around for a while. Highs will generally be well below seasonal averages through the next week, except for Sunday when a passing low brings near-seasonal temperatures for a day. The sun should be around for Saturday, but it looks like mixed to cloudy conditions will develop for the end of the weekend through the first half of next week.

Today’s seasonal daytime high in Winnipeg is -13°C while the seasonal overnight low is -24°C.

Arctic Chill Grips Winnipeg

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Seasonably cold weather will stay entrenched over southern Manitoba for the next few days.

Cold Arctic air will continue to pour southwards across the eastern Prairies this week. The Polar Vortex will sit over Hudson Bay for much of the week, maintaining a strong cross-polar flow. This will keep a steady stream of cold air streaming from the High Arctic down to the eastern Prairies that then curls off to the southeast across the northern United States.

This will keep temperatures cold, but nowhere near record values. Winnipeg will see a high near -17°C today with light winds. Skies will be mainly sunny through the day, but cloud will spread in tonight alongside a weak low moving into the region. Winnipeg will see clouds with flurries through the first half of the night with winds increasing out of the northwest to 30 km/h. Skies will clear out for the second half of the night as temperatures drop to a low near -27°C. Wind chill values will dip into the mid-minus 30s.

GDPS 500mb Wind Speed Forecast valid 21Z Tuesday December 10, 2019
The Polar Vortex will support a cross-polar flow for the next few days, bringing below-seasonal temperatures to the eastern Prairies.

Skies will clear on Tuesday bringing plenty of sun to the city, but it will be downright cold with a daytime high near -20°C. Winds will be light out of the west. Temperatures will drop to a low near -28°C on Tuesday night with light northwest winds. Winnipeg will see sunny skies with a high near -20°C on Wednesday as an Arctic high moves across the region. Winds will be out of the west-southwest near 20 km/h.

Some cloud will push into the region on Wednesday night as more seasonal temperatures begin working into the region. The city should see a low near -25°C.

Long Range Outlook

The second half of the work week will see temperatures returning to seasonal values with plenty of cloud cover. Light snow is possible later Thursday into Friday morning. The weekend should bring mixed skies with highs of -15 to -10°C and overnight lows in the mid-minus teens.

Today’s seasonal daytime high in Winnipeg is -9°C while the seasonal overnight low is -18°C.

Seasonably Cold Temperatures Continue

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Winnipeg will continue to see seasonably cold temperatures through the first half of the work week.

A persistent north-northwest flow aloft will sustain the cold weather in the region through the upcoming work week. To start the week, an Arctic ridge will move into the province. This will keep temperatures cool in Winnipeg with a high of just -11°C. Skies should stay mainly sunny today with westerly winds near 20 km/h. Temperatures will head to a low near -18°C tonight with clear skies and light winds.

Temperatures will remain cold in southern Manitoba today with daytime highs in the -10 to -15°C. Average overnight lows for the region at this time of year are around -10°C.
Temperatures will remain cold in southern Manitoba today with daytime highs in the -10 to -15°C. Average overnight lows for the region at this time of year are around -10°C.

Temperatures will warm slightly on Tuesday as the Arctic ridge moves off to the east, but it may end up feeling colder. A moderate southerly wind will develop, increasing to 40 gusting 60 km/h by midday. Skies will become increasingly cloudy later in the day as warmer air grazes the region. Temperatures will climb to a high near -7°C, then fall to a low near -12°C with mostly cloudy skies on Tuesday night. The winds will ease in the evening followed by a chance of flurries overnight.

Wednesday will bring mixed skies to the region as a cooler northwesterly flow develops again. Temperatures will climb to a high near -5°C with northwest winds around 20 km/h. A weak ridge moving through on Wednesday night will bring mainly clear skies and light winds as temperatures drop to a low near -11°C.

Long Range Outlook

A warm-up will begin in the second half of the week as the stagnant upper air pattern begins to break down. Thursday may bring highs back towards the freezing mark, followed by cooler temperatures again on Friday.

Heading into the weekend, a major shift may be in the cards back towards milder temperatures. Highs back near or just above 0°C look likely this weekend and into the first half of next week. That warmth will likely come with more cloud and a chance of a wintery mix of precipitation at some point early next week.

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

GDPS 2m Temperature Forecast valid 06Z Monday November 11, 2019

Light Snow Ushers In Arctic Reinforcements

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Southern Manitoba will see more light snow on Friday night and Saturday, ushering in another blast of Arctic air.

A low pressure system moving across the province will bring some milder air into the province alongside more light snow. Winnipeg will see temperatures climb to a high near -3°C today with southeast winds picking up into the 20 to 30 km/h range. Skies will stay mostly cloudy through the day.

As the low centre moves into the Red River Valley this evening, a shot of snow will move through the region. The snow should move through fairly quickly with a couple centimetres possible. The rest of the night should bring light winds and cloudy skies as temperatures dip to a low near -6°C.

Saturday will bring more cloud with highs once again climbing to around -3 or -2°C. There will be a chance for scattered flurries through the day. An Arctic ridge will begin pushing into the region and strengthen northwest winds into the 20 to 30 km/h range. Skies will begin to mix out overnight and the chance for flurries will shift towards streamers coming off of the lakes. Temperatures will dip a degree or two below -10°C on Saturday night as a reinforcing shot of Arctic air pushes southwards.

Temperatures will barely recover on Sunday with the city only seeing a high near -8°C. Northwest winds near picking up to 30 km/h will keep things feeling cold. There should be a bit of sunshine mixed in with the cloud across the region with a chance for some isolated flurries, particularly in the lee of the lakes. Winnipeg should see partly cloudy to mixed skies on Sunday night with a low near -17°C.

Long Range Outlook

Another couple cold days will kick off next week as the Arctic air moves through, but a transition into more seasonal conditions should arrive midweek. No significant snowfall is in the forecast.

Today’s seasonal daytime high in Winnipeg is +1°C while the seasonal overnight low is -7°C.