Flood Watch Expires at Noon - Heat Advisory Later Today
June 29, 2020 — 7:56am
Flash Flood Potential Along Leading Edge of Sweaty Air. There is something for the entire family today: flash flood potential this morning as more lines of T-storms track over saturated ground, and uncomfortably hot and humid weather by afternoon as the heat index exceeds 95F in the metro and 100F over western Minnesota - marking the leading edge of what may be the hottest 2 weeks of 2020. Map: Praedictix.
Stinking Hot. Here is the 00z Monday run of ECMWF (European model) showing a streak of low to mid 90s, starting Thursday. Dew points may come down a bit by late week, but heat indices should still be in the upper 90s to near 100F. Looks like we have ourselves a real summer this year. Graphic: WeatherBell.
Paul Douglas is a nationally respected meteorologist with 35 years of television and radio experience. A serial entrepreneur, Douglas is Senior Meteorologist and Founder of Media Logic Group. Douglas and a team of meteorologists provide weather services for various media and corporate interests at Praedictix. Developers and engineers create unique streams of weather data, imagery and API’s via Aeris Weather. He is co-host of a radio program, weekdays from 3 to 6 p.m. on WCCO Radio. His speaking engagements take him around the Midwest with a message of continuous experimentation and reinvention, no matter what business you’re in. He is the public face of “SAVE”, Suicide Awareness, Voices of Education, based in Bloomington. Send Paul a question.
Thursday was gray and humid, but at least the clouds kept temperatures tolerable (high of 82F at MSP). Today's blog includes details on the tornado that hit near Dalton, Minnesota - news of some relief from the humidity - and a tropical storm heading toward New York City. Yeah, a little odd for the 10th day of July.
With extreme heat and high dew points (a tremendous amount of water in the air) and extreme instability, conditions were ripe for extreme thunderstorms yesterday. A Severe Storm Watch was issued for much of Minnesota shortly before 5 PM. By 5:45 there were Tornado Warnings posted for Ottertail County with numerous reports of tornadoes on the ground. The storms just erupted in a short period of time - intense upward motion resulting in tornadoes near Dalton and Ashby with at least one fatality reported. Storms linger for a time today, but drier, slightly cooler weather is moving back in for late week and the weekend with a welcome dip in humidity.
After a thundery start, Tuesday mellowed into a perfectly fine summer day with temperatures a few degrees above average and plenty of sunshine. The sun will be out today, luring the mercury into the mid-90s before a few strong to severe storms erupt. I expect watches and warnings later today - stay alert and stay tuned for updates. The good news: humidity levels drop off to more tolerable levels by the weekend. Unlike most of America, Minnesota will catch a break from the worst of the heat wave.
We get (relatively) lucky this year with hot sunshine the rule today into Sunday. Recent summers have been incessantly wet, which kept temperatures cooler. But not this summer, not the way patterns are establishing. A cool/stormy bias over the Pacific Northwest should keep a hot ridge of high pressure over the central USA much of the summer, which translates into more heat (and potentially) drought. A real summer? Imagine that.
There is something for the entire family today: flash flood potential this morning as more lines of T-storms track over saturated ground, and uncomfortably hot and humid weather by afternoon as the heat index exceeds 95F in the metro and 100F over western Minnesota - marking the leading edge of what may be the hottest 2 weeks of 2020.