Tag: Windy

Mild With a Chance of Showers

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The warm spring weather continue in Winnipeg this week, but a passing low pressure system on Wednesday will bring a chance of showers to the region.

ECMWF 24hr. Precipitation Accumulation Forecast valid 18Z April 11, 2024
Rain showers are possible across southern Manitoba from Wednesday afternoon through Thursday night.

Temperatures will stay warm in Winnipeg through the rest of the week as more mild Pacific air spills across the southern Prairies. Daytime highs will hover in the low to mid-teens this week with lows in the 0 to +5 °C range.

While today will be mainly sunny, clouds will move in tonight as a low pressure system moves into southern Manitoba from central Saskatchewan. This system will support an area of showers that develops on Wednesday afternoon near the Saskatchewan/Manitoba border that drifts southeast into the evening. The chance of showers will last through the night, then taper off on Thursday morning as the low moves into Ontario.

Behind the low on Thursday, cloud cover will slowly break up as moderate northwest winds develop. By the afternoon, Winnipeg should see clearing skies with northwesterlies into the 30 to 40 km/h range. A ridge of high pressure will move in on Thursday night, bringing clear skies and light winds.

On Friday, the ridge will depart to the east and another low pressure system will begin its trek across the Prairies. This will bring increasing southeast winds with sunny skies giving way to late day cloud. There will be a chance of showers on Friday night as a warm front moves across the province.

Long Range Outlook

Saturday will bring the warmest weather of the year thus far to the Winnipeg area. With the warm front through and no snow cover left, daytime highs should be able to climb into the upper teens or low 20s with west-southwest winds. There could be a chance of a shower on Saturday evening as a cold front swings through with the passage of a low pressure system.

Sunday will bring cooler, but still mild, weather to the region. Daytime highs should sit in the mid-teens with breezy northwest winds and mixed skies.

Heading into next week, many forecast models suggest that a potent Colorado Low will develop and move towards the province. It’s too early to say anything definitive at this point, but this system could bring a broad swath of notable rain and/or snow to much of the eastern Prairies as it moves through. This storm could bring dangerous winter storm conditions to parts of the eastern Prairies; at this point it looks like much of the worst of the storm will move through eastern Saskatchewan and western Manitoba, but we’ll be sure to keep an eye on it as it develops.

Today’s seasonal daytime high in Winnipeg is 8 °C while the seasonal overnight low is -4 °C.

Sunny and Warm This Weekend in Winnipeg

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A stagnant pattern over the region will bring sunny skies and warm weather to Winnipeg for the rest of the weekend.

RDPS 2m Temperature Forecast valid 21Z Friday April 5, 2024
Mild temperatures will continue to wash over the southern Prairies this weekend.

A slow-moving upper ridge over the the province and a stalled surface low in Montana will result in little change to the weather in Winnipeg this weekend.

In the days ahead, the region will see sunny skies with daytime highs warming from the low teens into the mid-teens. Overnight lows will hover near or just above freezing.

Winds will strengthen out of the southeast into the 20 to 30 km/h range today, stay steady tonight, then increase to 40 gusting 60 km/h on Saturday. The winds will ease on Saturday night back into the 20 to 30 km/h range and shift easterly for Sunday.

Long Range Outlook

Monday brings the partial solar eclipse to the region, and unfortunately the region may struggle with cloud cover through the day. A low pressure system crossing the American Plains will spread thick cloud cover all the way through North Dakota and it’s likely that it will spill into southern Manitoba. At this point, it’s unlikely that skies will be overcast, but the region will likely have at least a mix of sun and cloud.

Skies will clear out Tuesday, leaving partly cloudy skies for much of the rest of the week. Temperatures will continue to be mild with highs in the 10 to 15 °C range and lows hovering near the freezing mark.

Today’s seasonal daytime high in Winnipeg is 7 °C while the seasonal overnight low is -5 °C.

Chance of Snow as Colorado Low Lifts North, Then a Gradual Warm-Up Begins

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The Winnipeg area will see a chance of light snow today as a Colorado Low lifts into northwest Ontario. Once it passes, the region will move into a gradual warming trend towards Spring weather.

RPDS 2m Temperature Forecast valid 00Z Wednesday March 27, 2024
A Colorado Low lifting northwards into Ontario will support driving northerly winds across southern Manitoba today.

It will be a cool day in Winnipeg today with daytime highs barely reaching the seasonal overnight low for this time of year. Northerly winds up to 40 gusting 60 km/h will drive this cooler air southwards through the day, limiting Winnipeg’s high to around -7 °C. This will be accompanied by cloudy skies and a chance for light snow; a Colorado Low lifting through NW Ontario will spread light snow into eastern Manitoba, but this far west it will struggle against drier air undercutting it. We’ll likely see flakes through the day, but accumulations should be minimal.

A ridge of high pressure will continue to push colder air into the region on Tuesday night, but cloud cover will moderate the overnight low. Those northerly winds will gradually ease overnight as temperatures head to a low in the -15 to -10 °C range.

Skies will stay cloudy on Wednesday as the low departs NW Ontario and the surface ridge moves in. Temperatures will rebound to a high near -5 °C with northerly winds of 30 gusting 50 km/h easing later in the day. Skies should clear out on Wednesday night with temperatures dropping into the -20 to -15 °C range as the ridge of high pressure moves in.

The region will see sunny skies on Thursday as warmer temperatures slowly move back into the region on the backside of the departing high. Winnipeg should see a high in the -5 to 0 °C range on Thursday afternoon and a low near -10 °C on Thursday night.

Long Range Outlook

The end of the week and the weekend will start with a chance of light snow as the stagnant pattern over the region breaks down and a disturbance crosses the southern Prairies. Daytime highs will creep above freezing, though, and in Winnipeg little accumulation is likely. Sunshine should return to the region on Sunday with a high in the 0 to +5 °C range.

Heading into next week, a couple disturbances will slump through Manitoba as a broader push of warm air occurs. This will bring a slight chance of snow or rain, depending on its timing, in the first half of the week. Daytime highs will climb into the 5 to 10 °C range and stay there while overnight lows vary from -10 to 0 °C.

A low pressure system crossing the Prairies mid-week could even bring daytime highs in the 10 to 15 °C range! The warmth will melt the snow left in the city and, combined with the strengthening sun, will likely shift the region into steadier Spring weather.

Today’s seasonal daytime high in Winnipeg is +3 °C while the seasonal overnight low is -8 °C.

Friday Rain Gives Way to Cooler Weekend Weather

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A low pressure system crossing the province will bring rain to Winnipeg today, but its cold front will usher in cooler weather for the weekend.

RDPS Precipitation Type and Rate Forecast valid 21Z Friday March 15, 2024
A wintery mix will spread southwards through Manitoba today.

As we mentioned on Tuesday, a low pressure system will drop through Manitoba today, spreading a large area of precipitation across the region. An area of snow mixed with rain will spread southeastwards out of central Manitoba this morning, gradually transitioning to mainly rain as temperatures warm through the day. In Winnipeg, precipitation will begin midday; with temperatures near 0 °C, it will likely start as snow, but as temperatures climb towards a high near 5 °C in the afternoon, it will change over to rain quickly. Periods of rain will be likely through the afternoon with westerly winds up to 40 gusting 60 km/h.

In the evening, a cold front will sweep through the region and usher in northwesterly winds up to 40 gusting 60 km/h. The front will bring an end to the rain, replacing it with a chance of flurries that will last through the night and into Saturday morning. Temperatures will head to a low near -5 °C.

For the weekend, the weather will be shaped by a large Arctic high that will slowly slump into the province. This will result in a gradual break-up of the cloud cover in the region as a cooler air mass pushes into the region. Daytime highs will slump into the -5 to 0 °C range on Saturday and near -5 °C on Sunday. Overnight lows will dip down into the minus teens both nights. Winds will be breezy through the weekend with northwest winds of 30 to 40 km/h on Saturday easing into the 20 to 30 km/h range on Sunday.

Long Range Outlook

Another disturbance will pass through the region on Monday and bring another push of warmer air. Daytime highs should climb back up close to +5 °C on Monday with moderate southerly winds.

Behind this system, an upper trough is forecast to dig into the Prairies; this will bring cooler temperatures for the rest of next week with daytime highs falling below 0 °C. Much of the week will be dry, but there could be accumulating snow across southern Manitoba mid-week.

Today’s seasonal daytime high in Winnipeg is -1 °C while the seasonal overnight low is -11 °C.