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.
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.
Severe storms never materialized late Monday - nice to catch a break every now and then. Humid weather lingers today with a lingering thunder risk, and Wednesday promises to be the hottest day of the week. A northwest flow ushers slightly cooler, more comfortable air into Minnesota this weekend. Enjoy the respite, because more 90s return next week.
We will watch another chance of some storms as we head through Monday afternoon and evening, producing heavy rain and the potential of severe weather. Otherwise, highs climb into the 90s once again. Click for more details. - D.J. Kayser
Hot enough for you? Just wait. If you believe NOAA's GFS model (I don't - not yet) MSP could experience a few days near 100F 1-2 weeks out. Not impossible, but there's little doubt 90s will be the rule for the next 2 weeks, and long range models look increasingly hot, unforgivably hot, for most of the USA this month. An old fashioned summer scorcher is brewing. I guess we were due.