Tag: Windy

Seasonably Cool Temperatures Ahead

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After a cool and windy Friday, temperatures will gradually return towards seasonal values in Winnipeg.

Today will start with moderate northerly winds behind a cold front that moved through overnight. Winnipeg will start off cloudy with north winds near 30 gusting 50 km/h. There will be a chance of flurries early followed by the cloud cover breaking up and clearing through the afternoon. Temperatures will climb to a high near 5 °C. A ridge draped across the region will bring mainly clear skies tonight with a low near -7 °C

The ridge will slide off to the southeast on Saturday, bringing mainly sunny skies to the region. Temperatures will recover a bit with a high near 8 °C and light winds. A few clouds will move in overnight with temperatures falling to a low near -1 °C.

RDPS 2m Temperature Forecast valid 21Z Friday April 23, 2021
The Prairies will see cooler temperatures on Friday in the wake of a cold front that moved through on Thursday.

Sunday will bring increasing cloud to the region as a long-wave upper trough begins to dig over western North America. Temperatures will nudge closer to seasonal values with a high near 11 °C as southerly winds strengthen to around 30 km/h. Skies should be cloudy by the afternoon and will stay so right through the night. A low pressure system moving into the region will bring a chance of rain to the region late overnight, but the main chance for organized rainfall will wait until Monday. Winnipeg will see a low near +2 °C on Sunday night.

Long Range Outlook

The new work week will start with cloudy skies and a chance of rain with a high in the upper single digits. After the low pressure system moves through, the forecast shows variable cloudiness with temperatures warming into the mid- to upper teens.

Today’s seasonal daytime high in Winnipeg is 13 °C while the seasonal overnight low is 1 °C.

Winter Returns to the Red River Valley

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Winnipeg will see a blast of April snow as a spring storm stalls over the region.

A slow-moving upper-level vortex will slump into the northern Plains of the United States today and stall over the area. This feature will support a deep and persistent stream of moisture from eastern North America into southern Manitoba for the next couple days. As a result, Winnipeg and region will see waves of snow spread westwards across the region today and tomorrow.

Winnipeg will see snow through the day today with accumulations of 5–10 cm by the evening. Moderate northerly winds near 40 gusting 60 km/h will accompany the snow, but the relatively warm conditions should limit the severity of any blowing snow that may develop. That said, visibilities may deteriorate rapidly at times in pockets of heavier snow. Temperatures will hover around -1 °C through the day.

The snow will continue tonight with winds of 30–40 km/h. Blowing snow might become a bit more of an issue overnight as temperatures drop a bit more to a low near -5 °C. Another 5–10 cm of snow is possible overnight.

Periods of snow will continue on Tuesday with temperatures climbing back to a high near -1 °C. Another 4–8 cm of snow is possible through the day. The snow will taper off Tuesday night, but skies will stay cloudy. The wind will ease into the 20–30 km/h range by Wednesday morning with temperatures dropping to around -5 °C again.

RDPS Total Snowfall Accumulation Forecast (at 10:1 SLR) valid 00Z Monday April 12, 2021 to 06Z Wednesday April 14, 2021
All of southern Manitoba will see a coating of snow from the spring storm affecting the area.

On Wednesday, the whole vortex will push off into eastern Canada, leaving the region with mostly cloudy skies and a chance of flurries. Temperatures will climb back above freezing with a north wind near 20 km/h.

By the time the snow tapers off, this system will have the potential to produce as much as 15–25 cm of snow for the Winnipeg area. The final total, though, will likely end up less than that; a combination of melting early in the event and compaction as it progresses should reduce the total accumulation somewhat. That said, it will likely still be enough to produce poor travel conditions and bring the region a short return to winter.

Long Range Outlook

The sun will return to the region by the end of the week, but seasonably cool conditions will persist. Winnipeg will see highs of 2–5 °C on Thursday and Friday, then climb into the 5–10 °C on the weekend. To start next week, the region will likely see variable cloudiness with near-seasonal temperatures.

Today’s seasonal daytime high in Winnipeg is 9 °C while the seasonal overnight low is -3 °C.

Pleasant Weekend Before A Winter Storm

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Winnipeg will see a relatively pleasant weekend after some much-needed rain that fell on Thursday night. Winter isn’t done with the region, though, with a winter storm poised to slam the region by Monday.

A digging trough over western Canada will dominate the upper air pattern over Winnipeg through the coming days. This will bring near-seasonal temperatures and variable cloudiness. Today, the city will see mostly cloudy skies as the system that brought the overnight rain drifts eastwards. A few sunny breaks are likely, though, and should help get the daytime high up to around 10 °C. A brisk north wind will pick up today to around 30 km/h and persist until the evening before tapering off. Skies will clear tonight with a low near -2 °C.

RDPS 2m Temperature Forecast valid Saturday April 10, 2021
Saturday will be a sunny and mild day the Red River Valley.

Saturday will be the nicest day of the next few as a weak ridge moves over the province. Winnipeg will see mainly sunny skies, light winds, and a high near 14 °C. There will be a few clouds overnight with a low near the freezing mark.

On Sunday, the region will begin to fall under the influence of a low pressure system moving southeast from Saskatchewan. Winnipeg will see increasing cloud through the day with a northeast wind picking up into the 20–30 km/h range. Temperatures will climb to a high near 10 °C.

Long Range Outlook

A major winter storm will move through Manitoba Sunday night through Tuesday, bringing significant snowfall to the region. Precipitation will spread through the province on Sunday night, and while some areas may see a bit of rain to begin, everything should change to snow by Monday morning. There is still significant disagreement in the forecasts where the heaviest snow will fall, but there is good agreement with some regions seeing up to 15–25 cm of snow. Unfortunately for Winnipeg, the range in forecast solutions is huge right now…from ≤5 cm of snow to over 20 cm. So at this point it’s a matter of waiting and seeing how this begins to shape up closer to the event.

RDPS Precipitation Type and Rate Forecast valid 12Z Monday April 12, 2021
Snow is forecast across most of southern Manitoba by Monday morning.

That said, it will likely impact most of southern Manitoba and provide much-needed moisture to alleviate some of the drought conditions. In the wake of this system, a slow return towards highs around 10 °C by the weekend is forecast with plenty of cloud cover, allowing the snow melt to gradually soak into the ground.

Today’s seasonal daytime high in Winnipeg is 9 °C while the seasonal overnight low is -3 °C.

Warm Weather With Mixed Skies

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Winnipeg will see warm weather continue this week with variable cloudiness over the coming days.

The city will see a mild start to the day with temperatures quickly warming to the high near 14 °C through the morning. By midday, a cold front will begin to sweep across the Red River Valley. This will bring increasing cloudiness and a low chance of rain showers as it passes. Behind the front, moderate northwest winds of 30–40 km/h will push into the Red River Vally for the afternoon with temperatures cooling slightly. The cloud cover will push out later in the day as an area of high pressure builds into the region. Winnipeg will see temperatures dip to a low near -2 °C tonight under clear skies and light north winds.

RDPS 2m Temperature Forecast valid 18Z Monday April 5, 2021
Winnipeg will see Monday’s warmest temperatures midday before a cold front moves through the region.

On Tuesday, a broad area of high pressure will work across the region. Temperatures will still stay mild as the strengthening April sun warms the snow-free ground in Winnipeg and the Red River Valley. The city should see a high near 13 °C with light north winds. The high will also keep skies sunny right through the day. Skies will stay clear on Tuesday night with a low near the freezing mark.

On Wednesday, a pair of low pressure systems will begin to impact the region. The first will be over the United States and will spread cloud and precipitation across southeastern Manitoba into northwestern Ontario. This system will stay southeast of Winnipeg and area, only spreading some partly cloudy skies this far west or north. Winnipeg will see a high temperature near 16°C (or perhaps a degree or two cooler if it ends up cloudier). The second low will begin pushing into Saskatchewan through the day and start building warmer weather into the region. This low will spread some cloud cover into the region overnight as temperatures head to a low near +2 °C.

Long Range Outlook

A more unsettled pattern will develop for the second half of the week, bringing cloudier conditions to Winnipeg. There is little agreement on the overall pattern progression, though, and whether or not the region will see any rain is still a big question. There will the potential for a few rain showers, but no particularly notable rainfall amounts are in the forecasts with only a few mm possible here and there. Temperatures will slowly ease back towards seasonal values into next week.

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