Streamers This Morning; Seasonal Weekend

After lake-effect streamers diminish this morning, we’ll see mainly sunny skies for the rest of the weekend with daytime highs near or just above 20°C.

GFS 500mb Wind Speeds

500mb wind speeds from the GFS model valid mid-day today. Faster winds are shaded. This clearly depicts how Winnipeg is in between the cooler air of the upper low, situated over James Bay, and the warmer air of the upper ridge/high, situated over the Western Prairies.

We’ll see clouds this morning with some showers over the Northern Red River Valley. These showers will be lake-effect streamers, so they’ll impact fairly long, narrow areas downwind of the lakes; where exactly will see showers will be highly dependent on the exact wind direction, so checking out where they are using our RADAR Viewer is your most reliable way to see if you’ll be impacted by them. Winnipeg will likely escape mostly unscathed from the streamers this morning, although should the wind shift to be a little more northerly (more favourable) or westerly (less favourable) we certainly could see some precipitation.

A ridge will slowly start building eastwards across the Prairies today which will bring a more westerly component into our winds across the province this afternoon and help start clearing out the clouds. By mid-to-late afternoon we should see sunny skies with a high right around 20°C here in Winnipeg. Tonight we’ll see clear skies with an overnight low dipping down to about 10°C.

Saturday will bring sunny skies and a high near 21°C as the ridge continues to try and build eastwards. A weak disturbance sliding SE across Manitoba will, however, pull some cooler air southwards across the province which will cause us to have our coolest overnight lows in quite a while across the Red River Valley. Here in Winnipeg, it looks like the overnight low will dip to 6 or 7°C in outlying areas, with temperatures a couple degrees higher near the core of the city.

Warmer air finally is able to push in on Sunday, which will give us a high near 24°C under sunny skies.

The beginning of next week looks to be sunny with slightly above-normal daytime highs.

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 Mastodon.

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