Tag: MBwx

Weather Settling Through the Weekend in Southern Manitoba

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Seasonal temperatures will return to southern Manitoba as a ridge of high pressure begins to build into the region from the west.

RDPS 10m Wind Forecast valid 21Z Saturday August 31, 2024
A passing disturbance will usher in moderate northwest winds across southern Manitoba on Saturday.

Warmer temperatures return to Winnipeg and area today as westerly winds continue across the region. Daytime highs will climb back into the mid-20s today as warmer weather bounces back into the region behind the low that moved through yesterday. The wind will be persistent out of the west today near 30 gusting 50 km/h, then ease in the evening. The entire region will see plenty of sunshine today.

The low tonight will dip down into the low teens.

On Saturday, an upper-level disturbance will rotate through the region, bringing mixed skies to the region and a chance of showers. The rain looks to mainly stay north of Winnipeg with decreasing likelihood further south. As the disturbance passes through, it will usher in moderate northwest winds up to 40 gusting 60 km/h across the Red River Valley. This will keep daytime highs near-seasonal in the low 20s.

There is a chance with both the tail end of the westerlies today and the northwesterlies on Saturday that smoke may move into the Red River Valley. It’s unclear how thick any of those smoke plumes would be, though it looks more likely that Saturday would bring a more noticeable smoke plume into the region for a time.

The winds will taper off on Saturday evening with clearing skies and an overnight low that dips into the upper single digits.

A broad ridge of high pressure will move across southern Manitoba on Sunday, bringing light winds, clear skies, and seasonal highs in the low 20s.

Long Range Outlook

A southerly flow will redevelop early next week and bring warmer weather back into the region with highs climbing back into the upper 20s. It does not look like there will be an appreciable chance of rain in the first half of the week, but the chance for mid-week thunderstorms can’t be ruled out at this point.

Enjoy the weekend!

Today’s seasonal daytime high in Winnipeg is 22 °C while the seasonal overnight low is 10 °C.

Tuesday’s Cool, Showery End Leads to Warmer Weather

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One last band of showers will move through on Tuesday evening, capping off a cool June day. Fortunately, warmer weather will return for the rest of the week.

RDPS 2m Temperature Forecast valid 21Z Thursday June 20, 2024
Despite the cooler Tuesday, early-summer warmth will return for the second half of the week.

Another upper-level disturbance will cross southern Manitoba later today and bring another wave of showers across the Red River Valley. This will cap off a day where temperatures struggle to get past the mid-teens as northerly winds and cloudy skies stay entrenched over the area.

Fortunately the winds will ease tonight with clearing skies as a broad area of high pressure spreads east across the Prairies. Temperatures will dip down into the 5–10 °C range once the showers clear out.

For Wednesday and Thursday, more pleasant conditions will return as a west-southwest flow redevelops across the region. Daytime highs will climb into the low 20s on Wednesday, then into the mid-20s for Thursday. Winds will pick up out of the west into the 20–30 km/h range on Wednesday, ease, then pick up out of the south into the 20–30 km/h range on Thursday.

Both days will bring a slight chance of showers or thunderstorms to the region, but they will likely be focused along a west-east trough line that will likely set up from western Manitoba across the southern Interlake region. It’s unlikely that Winnipeg will see any of that activity and both days should be pleasant in the city.

Long Range Outlook

Looking further ahead, cloudier skies will likely return to the region on Friday. A deep upper trough developing over western North America will support the development of a low pressure system over the American Plains that will then lift northeast later Friday into the weekend.

This system would likely bring a wave of thunderstorms and showers to southern Manitoba on Friday night into Saturday, with the worst weather ending Saturday morning and cooler, showery conditions possible afterwards.

Daytime highs would likely sit in the mid-20s on Friday, drop to around 20 °C on Saturday, then bounce back up to the mid-20s on Sunday. This system could produce another notable rainfall across southern Manitoba with localized accumulations of 30 to 60 mm possible.

Sunshine should return on Sunday, making for a nice end the weekend!

Today’s seasonal daytime high in Winnipeg is 24 °C while the seasonal overnight low is 11 °C.