Pleasant Second Half of the Week

After some unsettled weather the past couple days, we’ll be seeing pleasant, slightly warmer-than-normal days through the second half of the week as a ridge of high pressure builds into the Prairies.

Wednesday

22°C / 8°C
A few clouds and breezy. Slight chance of isolated late-day showers.
Thursday

21°C / 7°C
Mainly sunny.
Friday

24°C / 12°C
Mainly sunny.

We’ll see a few clouds today with a breezy northerly wind as cooler air moves in behind yesterday’s cold front. We may see some isolated showers late in the day thanks to weak convergence along the western shores of Lake Winnipeg, however they would certainly not be widespread and they would have very limited duration. We’ll see a high of around 22°C tomorrow and we’ll drop down to a chilly 8°C overnight under clear skies.

Thursday will be the coolest day of the week with temperatures topping out only around 21°C and an overnight low dropping down to around 7°C. It may actually end up being one or two degrees colder than that at night depending exactly where the main axis of the surface ridge lines up, but suffice to say it will be quite cool on Thursday night. Winds will be light through the day and we’ll see mainly sunny skies and a clear night.

Outgoing Longwave Flux for 00Z Saturday Sept. 14, 2013 -- approximates cloud cover -- showing a potent low pressure system pushing through the Kivalliq region of Nunavut.

Outgoing Longwave Flux for 00Z Saturday Sept. 14, 2013 – approximates cloud cover – showing a potent low pressure system pushing through the Kivalliq region of Nunavut.

Friday looks to be a fairly nice day as an incredibly potent low pressure system moving through the Kivalliq region of Nunavut into Hudson Bay draws warm air from the Alberta Foothills eastwards across the Prairies. At this point it looks like Winnipeg will get into that warm air and see a high temperature around 25°C, although if the warmth ends up occluding slightly faster, the mid–20’s may be confined to Montana and North Dakota while we remain in the low 20’s. We’ll see a few clouds through the day, but for the most part it should be quite nice with winds out of the south or southwest at around 20km/h. Friday night will cool off to the low teens under clear skies.

A Look Ahead to the Weekend

The weekend looks pretty great at this point. A large ridge of high pressure will move in behind the powerful Arctic low bringing sunny skies, light winds and highs in the low 20’s. Saturday & Sunday nights will be quite chilly, though, with temperatures dipping down into the 4–5°C range, and perhaps even cooler outside the City of Winnipeg. We may end up seeing our first significant risk of frost this weekend depending on exactly how strong that ridge of high pressure ends up being.

Brad

Brad lives in Winnipeg with his wife and two children and is the founder of A Weather Moment. He has loved weather from a very young age and has followed that passion through his life so far. He received a B.Sc. in Earth Sciences with Specialization in Atmospheric Sciences and is currently employed in the field of meteorology. You can find the author as @WeatherInThePeg on Twitter.