Tag: Windy

Mild Start to Week Turns Unpleasant

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Winnipeg will enjoy two mild days before what may be a significant winter storm moves into the province.

Winnipeg will enjoy seasonable warmth over the next couple days. An upper level ridge moving across the region will usher in southerly winds and warmer weather. Both today and tomorrow will see highs climb towards 20°C with southerly winds of 20 to 30 km/h. The city should see plenty of sunshine both days and seasonably mild overnight lows.

Seasonably mild temperatures will be in place over southern Manitoba on Tuesday while a sharp cold front pushes towards the region.
Seasonably mild temperatures will be in place over southern Manitoba on Tuesday while a sharp cold front pushes towards the region.

Unfortunately, a significant change in the weather is on the way for Wednesday. A potent low pressure system tracking through the Northwest Territories will combine with a deepening long-wave trough to send a cold front surging southeastwards across the Prairies. It will push into southern Manitoba on Wednesday, bringing much cooler temperatures and cloudy skies. Winds will strengthen to 30 gusting 50 km/h out of the north and the entire region will see a chance of showers.

While the Red River Valley may see rain showers on Wednesday, snow will likely push into southwestern Manitoba and the Interlake region.
While the Red River Valley may see rain showers on Wednesday, snow will likely push into southwestern Manitoba and the Interlake region.

The precipitation will organize on Wednesday night with heavier bands lifting northeastwards out of the Dakotas. There’s some uncertainty right now, but it’s possible that the rain mixes or changes over to snow sometime Wednesday night.

Long Range Outlook

Before anything else: there is still significant uncertainty with how the weather will develop later this week. With that said, southern Manitoba may see a multi-day winter storm on Thursday through Saturday. A potent Colorado Low will begin lifting northeastwards on Thursday, spreading moderate to heavy precipitation into the region. While this happens, northerly winds will strengthen and sustain a feed of cold Arctic air into the region. As the low reaches Lake of the Woods on Friday, it is forecast to stall out for 24 to 48 hours. This will result in bands of precipitation back into southern Manitoba, gradually changing to snow.

Exactly how much precipitation the region sees and what it falls at is uncertain; there’s a lot of ways this forecast can change between now and then. If this ends up on the snowier side, it could end up being a fairly major snowfall with at least 20 to 30 cm of the white stuff. Persistent rainfall may reduce snowfall amounts in some areas. But more rain isn’t exactly a desirable thing for a region whose rivers are already swollen with excess rainfall over the past month. This system could easily produce another 25 to 50 mm over the region which, if falling as rain, would quickly find its way into the river and aggravate overland flooding issues that exist in areas of the province.

We’ll be keeping an eye on this system as it develops and have more details in our Wednesday morning forecast.

Today’s seasonal daytime high in Winnipeg is 13°C while the seasonal overnight low is +2°C.

More Wet Weather On The Way, But A Second Summer Approaches

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Winnipeg will see more rain in the second half of the week, but all signs point towards a return to summer temperatures by the end of the weekend!

Tucked between two lows, Winnipeg will see a brief reprieve from wet weather today. Although there may be the odd break of sunshine, skies should stay mostly cloudy. Winds out of the northeast at 20 to 30 km/h will keep the daytime high to a seasonably cool 16°C. The winds will persist tonight as temperatures head to a low near 9°C.

A large low pressure system moving towards Lake of the Woods on Thursday will spread more rain into southern Manitoba. Rain should spread northwards into Winnipeg through the morning, then persist through the afternoon into Thursday night. Winds will strengthen to 30 gusting 50 km/h out of the northeast in the morning. The wind and wet weather will keep things cool; Winnipeg should see a high near 12°C.

The wind will shift to the north-northwest on Thursday night with a low near 9°C.

While much of southern Manitoba will likely see at least 20 to 30 mm of rain through the end of the week, some forecast models suggest that the region could see a widespread 25 to 50 mm.
While much of southern Manitoba will likely see at least 20 to 30 mm of rain through the end of the week, some forecast models suggest that the region could see a widespread 25 to 50 mm.

Showers will taper off through the day on Friday with breezy northwest winds near 30 gusting 50 km/h. Winnipeg will likely see at least 20 to 30 mm by the time the rain tapers off, but there’s potential for amounts in the 30 to 40 mm range.1

Temperatures will be marginally warmer with a high near 14°C. Skies should finally clear out on Friday evening as a ridge of high pressure moves into the region. The winds will taper off quickly on Friday evening then Winnipeg will head to a low temperature near 5°C.

Long Range Outlook

After a cool and wet week, conditions will change significantly this weekend as a large upper level ridge builds over central and eastern North America. Temperatures are forecast to climb into the mid-20s by the end of the weekend, then into the mid- to upper-20s to start next week. A deep southerly flow will advect Gulf moisture northwards, and the region could see humid conditions return to start next week with overnight lows climbing back into the upper teens.

The upper ridge is forecast to shift eastwards mid-week, allowing a large upper trough to push into the region, likely bringing unsettled conditions mid-week and a return to more seasonal conditions by the end of the week.

Today’s seasonal daytime high in Winnipeg is 19°C while the seasonal overnight low is 7°C.

  1. Final amounts will depend on exactly where embedded convective bands of rain develop in this system. ↩

Rainy Monday Night Followed By Gradual Improvement

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More rain is on the way for Winnipeg tonight, then the sun returns mid-week for several pleasant days.

A low pressure system pushing eastwards across the Prairies will bring more rain to Winnipeg later today. After a sunny start to the day, clouds will push back into the region this afternoon. Temperatures should reach a high near 19°C, but southeasterly winds of 20 to 30 km/h will make it feel cooler than that. Showers will spread into the region for the evening hours and persist for much of the night. There may even be a chance for a few embedded thunderstorms through the evening hours.1 The showers will gradually taper off overnight behind the low. The wind will ease in the evening, then pick up out of the northwest to around 30 km/h late overnight. Temperatures will dip to a low near 11°C.

A broad swath of rain and showers will spread across southern Manitoba on Monday.
A broad swath of rain and showers will spread across southern Manitoba on Monday.

Tuesday will start off with cloudy skies and a chance of some lake-effect showers drifting southeastwards of both Lake Manitoba and Lake Winnipeg. Skies will stay mostly cloudy for much of the day, but a few sunny breaks may develop late in the afternoon. The cloud cover and northwest winds will keep things cool; Winnipeg will see a high only near 15°C. The winds will ease in the evening with clearing skies; Winnipeg should see a low near 6 or 7°C.

On Wednesday, a southerly return flow combined with sunshine will help temperatures recover back to seasonal values. The city will see a high near 22°C with southwest winds around 15 km/h. The next disturbance crossing the Prairies will push more cloud back into the region through the afternoon. Skies should clear back out overnight with a light south wind continuing. Temperatures will dip to a low near 11°C.

Long Range Outlook

The remainder of the work week is looking nice with highs in the low 20s or upper teens and variable cloudiness. Cooler temperatures will return for the weekend, but the region should still see a fair amount of sunshine. Unsettled conditions are forecast to return to start off next week.

Today’s seasonal daytime high in Winnipeg is 21°C while the seasonal overnight low is 9°C.

  1. No severe weather is expected. ↩

Seasonably Cool Weather Settles Over Winnipeg

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Winnipeg will see cooler daytime highs through the rest of the week with another chance of showers on Wednesday night.

The sun will make a reappearance in Winnipeg today after a rather unsettled start to the week. West-northwest winds near 30 km/h will continue through the day with a high near 21°C. Late in the day, cloud cover will begin to increase as a low pressure system moves in from the northwest. As it moves through tonight, Winnipeg may see a few more rain showers but most of this system’s precipitation is forecast to remain north across the Interlake. The cloud will help keep things a tad warmer through the night; Winnipeg should see a low near 12°C.

The cloud cover will gradually break up on Thursday morning, leaving the city with mixed skies that clear out for the afternoon. The wind will continue out of the northwest near 30 gusting 50 km/h, tapping into cooler Arctic air. Winnipeg should see a high near 20°C on Thursday. A ridge of high pressure moving in on Thursday night will ease the winds but also send temperatures plummeting to a low near 6°C.

A band of showers will move across southern Manitoba on Wednesday night.
A band of showers will move across southern Manitoba on Wednesday night.

The city will continue to see mainly clear skies on Friday with light northwest winds. Temperatures will climb to a high near 21°C. A few clouds will move on on Friday night as temperatures head to a low near 12°C.

Long Range Outlook

More cloud will move into the region this weekend as another low pressure system begins working across the Prairies. Several chances for showers will likely develop on Saturday through Tuesday as this disturbance works through the region. Temperatures will continue with highs mainly in the low 20s and overnight lows in the upper single digits or low teens.

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