Yesterday was day one of a stretch of beautiful, dry, and cooler conditions in the Twin Cities. The forecast continues to show that trend continuing, at least until Wednesday.
Note the overnight lows the next couple of nights (including last night, as well) in our Minneapolis/St. Paul 7-day forecast:
So what’s going on? Why is it so cool (keeping in mind that most of the year, 80 degree highs are considered hot and not cool)?
We’ve seen a dip in the jetstream – the river of air miles up in the atmosphere that separates warm air to the south from colder air to the north. That’s allowed cooler, dryer, air to sink south. Here’s the 250mb wind speed map as we’ve started off Tuesday:
You can see some upper level circulations indicated by unshaded areas in the image above. I’ve drawn arrows showing where our winds are coming from – Canada. Meanwhile, in the desert southwest there’s a circulation wrapping hot, dry, air around places like New Mexico.
We’ll see the cooler conditions continue for a few days, and then by the weekend the warmer air pushes into Minnesota again, and temps surge. That being said, enjoy this week and stay tuned!
Follow Meteorologist Aaron Shaffer on Twitter. Aaron is a meteorologist who lives in Minneapolis and is the digital communications and social media associate for the nonprofit Avivo in Minneapolis. He is Ward 8's representative on the Minneapolis Bicycle Advisory Committee, Deep down he's a weather geek and has a degree in Atmospheric & Oceanic Sciences from UW-Madison to prove it. He's spent time working at TV stations in Wyoming, South Dakota, and Iowa prior to arriving in Minneapolis to work for WeatherNation and now forecasting for MinnyApple. His favorite weather career moment came while storm chasing for his Iowa station (he went on 40+ storm chases during that time), when he saw a mile-wide EF-4 rated tornado.