Tag: Above-Normal Temperatures

Scorching Summer Weather Returns

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Temperatures in Winnipeg will soar through the first half of the week as summer returns in full force.

A potent upper-level ridge building over the region will bring temperatures well above seasonal values to wrap up September in southern Manitoba. With plenty of sunshine, temperatures will climb from the mid-20s today to near 30 °C on both Tuesday and Wednesday. Rather unusual for late season heat will be that it won’t be overly windy. The city will see southerly winds up to 30 gusting 50 km/h this afternoon that ease overnight, lighter southeast winds for Tuesday, then southerlies back up to 30 gusting 50 km/h on Wednesday.

RDPS 2m Temperature Forecast valid 21Z Tuesday September 28, 2021
Temperatures will climb into the 30s across much of southern Saskatchewan and Manitoba on Tuesday.

A cold front pushing towards the region on Wednesday will bring increasing cloudiness to the city through the day. Skies will stay mostly cloudy overnight with a good chance of showers moving through the region overnight into Thursday morning.

Lows over the coming nights will vary from the low teens to upper teens.

Long Range Outlook

While temperatures will cool behind the cold front, above-seasonal warmth will stay right through into next week. Forecasts show the upper ridge pattern breaking down in the second half of next week, bringing a return to more seasonal temperatures and unsettled conditions.

Today’s seasonal daytime high in Winnipeg is 15 °C while the seasonal overnight low is 4 °C.

Hot And Smoky in Winnipeg

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Winnipeg will see more smoky weather as an upper ridge sends temperatures soaring.

Winnipeg will see several days ahead with highs climbing above 30 °C as a potent upper ridge pushes eastwards across the Prairies. With the upper ridge will come broad subsidence and mainly sunny skies over the next few days.

Unfortunately, Winnipeg will continue to see periods of smoke as well. Conditions will likely be worst today, improve for tomorrow, then degrade a bit again on Wednesday.

RDPS 2m Temperature Forecast valid 21Z Tuesday August 3, 2021
Winnipeg will see very warm temperatures on Tuesday with highs in the 30s.

Overnight lows will be seasonably warm, though it will be a very warm night on Tuesday night when the warmest air is over the region.

It will stay dry over the next few days, but a few showers or thunderstorms may be possible later Wednesday. A low pressure system will be dropping southwards into the region and may trigger more scattered thunderstorms.

Long Range Outlook

Winnipeg will see a return to seasonal temperatures in the second half of the week with variable cloudiness. There might be a small chance of some showers, but no notable rainfall is likely.

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

More Warm Weather With a Chance of Showers

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Temperatures will stay warm in Winnipeg through the first half of the week and the city may even see a bit of rain.

Today will start off with mixed to cloudy skies as a band of showers makes its way across southern Manitoba. This band developed overnight and may bring some rain to Winnipeg; as of writing, the band hasn’t formed yet so its exact placement is unknown to me!). It will be a narrow band situated just north of an upper-level front draped across the province. There may even be a chance of a thunderstorm. Any rain should push off to the east by midday, leaving the city with partly cloudy skies. Temperatures will climb to a high near 28 °C with northeasterly winds picking up into the 30–40 km/h range.

These winds will tap into some of the forest fire smoke from east of Lake Winnipeg, reducing air quality on Monday night into Tuesday. It shouldn’t be anywhere near as a bad as the last smoke event, but will be enough to be noticeable.

Temperatures will dip to a low near 14 °C tonight with clear skies and easing winds.

An approaching low pressure system will push temperatures higher on Tuesday with the high in Winnipeg in the low 30s. Skies should stay mainly clear for much of the day but some cloud will build into the region by late afternoon. The winds will stay light through the morning, then pick up out of the south into the 20–30 km/h range by the end of the afternoon.

RDPS 2m Temperature Forecast valid 21Z Tuesday July 27, 2021
Hot weather will return to southern Manitoba on Tuesday.

Heading into the night, nocturnal thunderstorms will likely develop over western Manitoba and push eastwards. Winnipeg will see a chance for some of that activity overnight into early Wednesday morning. Temperatures will head to a low near 19 °C with southeasterly winds near 30 km/h.

Skies will gradually clear out on Wednesday with northwest winds near 30 gusting 50 km/h and a high near 29 °C. The winds will ease on Wednesday night with a low near 17 °C.

Long Range Outlook

Warm weather will continue for the rest of the week with another chance for some showers or thunderstorms on Friday. After that, temperatures will return to seasonal values with variable cloudiness through the weekend into next week.

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

The Heat Builds In

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Winnipeg will see hot days ahead as an an upper ridge intensifies over the Prairies.

Winnipeg will see daytime highs climb to the mid-30s over the coming days as warmer air settles over the region. This warmth will be sustained by an amplifying upper ridge over the Prairies that will also keep conditions mainly sunny through the Red River Valley. Overnight lows will sit near 20 °C over the next couple days, then dip into the mid-teens on Sunday night as a cold front slumps into the region.

RDPS 500mb Height and Wind Speed Forecast valid 18Z Sunday July 18, 2021
An upper ridge will continue to amplify of the Prairies this weekend, extending northwards from the subtropical high over the western United States.

Winds will be breezy out of the south the next few days, picking up into the 20–30 km/h range during the day and easing at night. While conditions will be generally dry, an isolated pop-up shower or two can’t be ruled out over the coming days. The most organized chance for rain will be Sunday night when a cold front moves into the region.

Hazy conditions will persist over the coming days, with occasional periods of local smoke possible (the former being when smoke is mainly aloft with low concentrations near the ground, while the latter is when visibilities become reduced and the odour is noticeable).

The hot temperatures, relatively low dew points, and breezy winds will exacerbate the already poor fire conditions. Note that both the City of Winnipeg and the Province of Manitoba have fire bans in effect.

Long Range Outlook

Temperatures will cool slightly for Monday behind the cold front, then temperatures will rebound back towards the 30s on Tuesday. Models are starting to have a little more disagreement on how next week will progress. While all models had a significant heat wave for Winnipeg, newer model runs have become a bit more aggressive with the cooler air, keeping Winnipeg’s temperatures in the upper 20s or low 30s through much of next week. The hot weather will still be around, though, with highs climbing back into the mid- to upper-30s nearby to the west.

It’s hard to say at this point whether the new trend in the model will be right or not. If Winnipeg stays on the cooler side of this feature, then it will also mean the city will be more likely to see chances for rain or thunderstorms throughout the week. It’s impossible to discern at this point, though, so for now we’ll keep an eye on how this system evolves as the cold front slumps through the Prairies.

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