Warm Weather Continues; Little Rain in Sight

Upper-level flow for this evening

Upper-level flow forecast for this evening over Central North America from the GEM-GLB. Of note is the shortwave pushing out of Alberta. This feature will flatten the upper ridge over Southern Manitoba and bring some unsettled weather to SW MB on Sunday.

Rainfall will continue to be spotty and elusive over the Red River Valley as warm temperatures persist and and upper-level ridging maintains it’s hold over the Eastern Prairies. While numerous systems trek through Alberta and Saskatchewan into Northern Manitoba over the next few days, mainly sunny skies are in store for us as we head into the weekend with daytime highs generally around 28°C across much of the Red River Valley. Humidity levels will be lower today and through the weekend than they were on Thursday, however overnight lows will still remain relatively warm in the high teens.

On Sunday, a low pressure system will move eastwards out of Saskatchewan through the Interlake region. Models are suggesting that a band of nocturnal thunderstorms will push into Southern Manitoba on Saturday night and push eastwards before dying around mid-morning. It’s far too early to know where these storms will actually occur, so we’ll be sure to provide updates in the comments. After that band of thunderstorms falls apart, the rest of Sunday actually looks quite nice with clearing skies in the RRV and a high near 30°C.

Next week looks to start off quite pleasant with little chance of precipitation in the RRV until mid-week.

More Warm Weather On The Way

Despite the passage of a cold front today, temperatures across Southern Manitoba will continue to bask in plenty of warm weather through the rest of the week.

Surface temperatures at 00Z this evening

Temperatures from the GEM-REG for 00Z this evening.

A cold front will push across the Red River Valley, ushering in westerly winds that will slowly flush out some of the humid air that has built in over the region over the past couple days. Temperatures will remain in the high 20’s through the remainder of the week across the entire Red River Valley with more comfortable humidity levels, and overnight lows will range between 15 and 20°C tonight through the weekend.

A slight chance for showers exists on Saturday evening, however no significant accumulations are expected. Enjoy many more days of warm, sunny weather!

Sunshine!

After an extremely cloudy, soggy two-week streak of weather over the Red River Valley, sunshine is in the cards. Lots of it.

Sunshine will persist across Southern Manitoba for the near future!

Several days of warm temperatures and sunshine are expected across Southern Manitoba, a welcome change from the cloudy, wet weather that has persisted the past few weeks. Photo: Brad V.

An upper ridge will build in over the Central Prairies through the weekend, bringing plenty of sunshine and warm temperatures to the Red River Valley. Daytime highs will sit near 25°C today and tomorrow. Highs will drop a little bit on Sunday as some cooler air slides down from Central Manitoba, giving us a daytime high near 22 or 23°C. Overnight lows through the next few days will range from 9-14°C.

More heat and humidity is forecast to build in through the first half of next week, pushing daytime highs up into the high 20’s and overnight lows into the high teens. The upper ridge is forecast to break down in the second half of next week, bringing the risk of stormier weather back to Winnipeg.

Enjoy a beautiful weekend!

Stormier Weather Set To Return

Southern Manitoba will be under an increasing risk of thunderstorms as the week progresses. Heat and humidity will slowly build back into the region as a deep upper trough begins to build over the Rocky Mountains before tracking eastwards across the Prairies later in the week.

GEM-REG 6-hour Precipitation for Thursday Afternoon

6-hour accumulated precipitation through Wednesday afternoon from the GEM-REG model.

We’ll see warmer temperatures today as warmer air pushes in behind a warm front that passed through overnight. Daytime highs should be near the 25°C mark through most of the RRV. By this afternoon a weak frontal wave will be positioned near the international border with a trough extending NW to a low pressure system tracking into Western Manitoba. Showers and thunderstorms will develop over SW Manitoba early this afternoon and slowly develop northeastwards into the Red River Valley. It will mainly be regions through the northern Red River Valley that face the risk for showers or thunderstorms (Portage la Prairie, Winnipeg, Selkirk; as seen in the image above). The showers and thunderstorms will lift northwards into the Interlake overnight while overnight lows drop to the mid-teens over most of Southern Manitoba.

12 hour accumulated precipitation through Thursday

12 hour accumulated precipitation through Thursday from the GFS model.

Opinions differ for Thursday, however it’s generally expected that a north-south band of showers with a chance of an embedded thunderstorm will develop over the Red River Valley or the Whiteshell in the afternoon. This line will slowly move eastwards and intensify into a band of thunderstorms. Again, there’s still quite a bit of uncertainty to where this line will develop, and the potential exists for fairly large (close to 1”) rainfall accumulations. We’ll be keeping close track of this system’s development.

Friday looks to be a fairly nice day with comfortable humdity and daytime highs in the mid-20’s. A large MCS is forecast to develop on Friday night in North Dakota, bringing the chance for a stormy and rainy Saturday. We’ll take a closer look at that system later this week.