Tag: Below-Normal Temperatures

Cool, Wet Weather As Fall-Like Conditions Arrive

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A passing low pressure system will bring wet, cool, and windy conditions to the Red River Valley to start the week.

Today will be another unsettled day across southern Manitoba, but Winnipeg might just miss out on most of the activity. Skies will stay mostly cloudy through the day and temperatures will be seasonably cool with a high near 20°C. A low pressure centre moving from the Interlake into northwestern Ontario will bring light winds in the morning that strengthen out of the northwest into the 30 gusting 50 km/h range for the afternoon. The region will be mostly dry to start the day, but through the afternoon widespread showers and thunderstorms will develop. The precipitation will track from northwest to southeast and has the potential to impact most of the Red River Valley. That said, Winnipeg may stay dry and sit between bands of showers to the southwest and the northeast.

Temperatures will dip to a low near 14°C tonight with mostly cloudy skies and a chance of showers. Winds will persist out of the northwest near 20 km/h.

Tuesday will be a bit of a shock to the system as the first blast of fall-like conditions moves into the region. A trough of low pressure will keep it cloudy and likely bring periods of rain to the city. The northwesterly wind will strengthen as high as 40 gusting 60 km/h and usher in a significantly cooler air mass. As a result, the temperature will slide from near 14°C in the morning to 11 or 12°C in the afternoon. The wind will continue around 30 gusting 50 km/h on Tuesday night as temperatures drop stay steady around 11 or 12°C.

Much of Mantioba will see showers or thunderstorms through the first half of this week.
Much of Mantioba will see showers or thunderstorms through the first half of this week.

Wednesday will finally bring clearing skies and sunshine back to the region. Winds will continue out of the northwest near 30 gusting 50 km/h right through the day, but temperatures will rebound back to a high near 19°C. The wind will finally ease on Wednesday evening with temperatures heading to a low near 13°C under mixed skies.

Long Range Outlook

The remainder of the week should bring more settled conditions with plenty of sunshine and no significant precipitation expected. Temperatures should gradually return to near-seasonal values.

Today’s seasonal daytime high in Winnipeg is 23°C while the seasonal overnight low is 10°C.

A Couple Nice Days Before Fall-Like Conditions Mid-Week

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A persistent northwesterly flow aloft will gradually spread below-seasonal temperatures across Manitoba through the first half of the work week.

Southern Manitoba will see a shift into markedly cooler temperatures mid-week as a persistent northwesterly flow draws cooler air from the Arctic southwards. To start the work week, Winnipeg will see plenty of sunshine today with just a few clouds this afternoon. Winds will pick up out of the west to around 20 km/h midday as temperatures climb to a high near 24°C. Winds will ease this evening with temperatures falling to a low near 13°C under clear skies.

Tuesday will bring a bit more cloud to the region as a weak disturbance pushes towards the province from the west. Skies will become mixed in the afternoon with winds strengthening out of the west-northwest to 20 to 30 km/h. Winnipeg will see a seasonal high near 25°C. There’s slight chance of a rain shower in the evening as the disturbance moves through the region. Skies will become cloudy Tuesday night as temperatures head to a low near 12°C.

Significantly below-seasonal temperatures will be in place over southern Manitoba on Wednesday

Decidedly fall-like weather will move into the region on Wednesday. With northwesterly winds increasing to near 30 km/h, Winnipeg will climb to a well below-seasonal high near 18°C. Skies will remain mostly cloudy with a chance of showers through much of the day. The winds will taper off in the evening, but skies will remain fairly cloudy for much of the night. Winnipeg will see a low near 10°C on Wednesday night.

Long Range Outlook

The remainder of the week will bring a return to near-seasonal temperatures with daytime highs rebounding into the mid-twenties. The Red River Valley will see plenty of sunshine with generally dry conditions persisting into the weekend.

Winnipeg’s seasonal daytime high is currently 26°C while the seasonal overnight low is 13°C.

 

 

Bitter Cold Returns To Close Out The Year

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The last few days of 2017 in Winnipeg will see a return to very cold temperatures as another Arctic high slides into the Prairies.

Temperatures are heading right back down into the -20s today as northwesterly winds pick up to around 30 km/h as daytime highs climb to only around -23°C, over 5°C colder than yesterday’s high. The wind will combine with the cold temperatures to produce wind chill values in the -34 to -38 range. Skies will be mixed today before clearing this evening as a potent Arctic high pushes into the province. Temperatures will plummet tonight to a low near -33°C; winds will be relatively light, but at those temperatures barely any wind is needed to produce wind chill values in the -40 to -45 range, so we expect extreme cold warnings will be issued by ECCC later today.

Saturday will be a bone chiller and may end up the coldest day of 2017 as Winnipeg remains entrenched under the Arctic high. With sunny skies and light winds, temperatures will barely recover to a high near -28 or -27°C, and once the sun heads back down, temperatures will return to a low near -33°C.

RDPS Forecast 2m Temperature with MSLP valid 12Z Saturday December 30, 2017
A potent Arctic high will bring another shot of bitterly cold temperatures to southern Manitoba.

Sunday will see temperatures begin to recover slightly as the Arctic high slumps to the south. Winnipeg will see light westerly winds as temperatures climb to a high near -25°C. Temperatures will remain relatively steady on Sunday night as 2017 comes to a close. The westerly winds will produce wind chill values in the -35 to -40 range, so if you’re going to be outside, make sure you bundle up!

Long Range Outlook

The start of 2018 will continue the trend of below-seasonal conditions, but the worst of the cold will likely be over for the time being. By the end of next week, there’s signs that the cold may finally break and seasonal to above-seasonal temperatures may return to the region with some chances for some light snow.

And that’s it from us for 2017! We’ll be back with a regular forecast on January 1st, followed by some climatological summaries later in the week! Happy new year!

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

Coldest Weather Of The Season Arrives For Christmas

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The coldest weather Winnipeg has seen this winter is on the way. A cold front slumping southwards through the province will usher bitterly cold Arctic air into the region and bring Winnipeg its coldest Christmas Day in 20 years.

Winnipeg will see mostly cloudy skies today with the light snow that moved in overnight gradually tapering off as the trough of low pressure creating it moves off to the southeast. Temperatures will rise just slightly to a high near -11°C this morning before cooling slightly behind the trough as winds pick up out of the northwest to 20 to 30 km/h. Clouds will break up tonight as temperatures head to a low near -19°C with light winds.

RDPS 2m Temperature Forecast valid 15Z Saturday December 23, 2017
A cold front will slump through southern Manitoba on Saturday, ushering in much colder air from the north.

Saturday will see that Arctic cold front slowly slump southwards towards Winnipeg. Ahead of it, skies will cloud back over with flurries while temperatures once again climb to a high near -11°C. The cold front will push south of Winnipeg and the Trans-Canada corridor late in the afternoon, gradually clearing out the cloud cover and ushering in the significantly colder air mass. Temperatures will dip down to a low near -26.

Sunday will be the first day of significantly below-seasonal temperatures in Winnipeg as the daytime high barely recovers from the overnight low, reaching just -22°C with light winds. Skies will likely be mixed, but its worth noting that models are struggling to find a consensus on how much cloud will linger behind the cold front. It shouldn’t be cloudier than a mixed sky, but there is a chance that it may end up sunnier than that. Temperatures will then dip to a low near -29°C under mainly clear skies on Sunday night.

Long Range Outlook

The deep freeze locks in for the long haul on Christmas Day, kicking it off with an expected high of only -24°C. This would be the coldest Christmas Day in Winnipeg in 20 years, since the mercury topped out at -27.8°C in 1996.

Top 10 Coldest Christmas Day Highs in Winnipeg, MB

RankDaily Max Temp (°C)Year
1-30.01892
2-28.91933
3-28.31883
4-27.81996
5-27.41990
6/7-26.71917/1882
8-26.42017
9-26.11903
10-25.61934

While this year won’t likely break into the top 10 coldest Christmas Day highs, it won’t be far off. If Winnipeg sees a high of -24.0°C, it would be the 13th coldest high temperature on Christmas Day in Winnipeg’s 145 year climatology.

GDPS 850mb Temperature Anomaly Forecast valid 12Z Monday December 25, 2017
A bitterly cold air mass will be in place over southern Manitoba on Christmas with 850mb temperatures expected to be over 20°C below seasonal values

The cold weather will then remain entrenched over the region for the remainder of the week, with daytime highs in the -20’s and overnight lows near or colder than -30°C.

Bundle up and have a safe and happy holiday! We’ll be taking some time off for Christmas, so there will be no forecast issued on Monday. Depending on how the 12 days of Christmas go, we’ll be back either next Wednesday or Friday with your forecast heading towards the end of 2017! In our absence, we recommend you check out ECCC’s forecasts and monitor for any warnings that may be issued due to the cold.

As ECCC mentioned in the special weather statement issued on Thursday afternoon, extreme cold can be deadly. Even moderate exposure, if not adequately prepared, can leave you with frostbite or hypothermia. If your holiday plans involve travelling on area highways, make sure you bring warm clothes and ensure that you’ve created an emergency car kit in case you encounter unexpected disruptions. Additionally, review the cold weather health information compiled by Manitoba Health for tips on how to recognize danger signs of extreme cold and advice on how to protect yourself and others.

Winnipeg’s seasonal daytime high is currently -11°C while the seasonal overnight low is -22°C.