Updraft® - Minnesota Weather News

September breeze: Gusty passing thunderstorms Tuesday afternoon

Small severe risk; September-like temperatures early this week

Hello, September?

The calendar says Aug. 27, but Tuesday’s weather maps scream September. The high temperature of around 70 degrees in the Twin Cities is average for about Sept. 22.

Temperatures Tuesday and Wednesday feel more like late September. Throw in wind gusts to 30 mph and a few passing showers and the word blustery is back in the forecast.

Tuesday weather picture
Tuesday weather picture
Twin Cities National Weather Service

Our temperatures this week mimic a roller coaster ride at the State Fair. We peak Thursday in the upper 70s. Another cool front sends us crashing again by Saturday. Then warmer air glides back into Minnesota later this week with highs near 80 by Labor Day. Ups and downs. Strikes and gutters.

NOAA temperature forecast for Minneapolis
Temperature forecast for Minneapolis
National Oceanic and Atmospheric Administration, via Weather Bell

A few feisty thunderstorms

A pool of cold air aloft makes the atmosphere over Minnesota quite irritable Tuesday afternoon. Gusty winds over 30 mph at times will have fairgoers searching for cover. The unstable nature of the atmosphere means scattered showers and thunderstorm swill pop up and march quickly east.

The National Oceanic and Atmospheric Administration’s High-Resolution Rapid Refresh model paints spotty cells racing southeast Tuesday. Any downpours should last about 10 to 20 minutes then move quickly on.

NOAA HRRR model this afternoon
Rainfall depiction for Tuesday afternoon
NOAA, via Weather Bell

There is a small risk a few storms could reach severe limits with wind gusts in excess of 50 mph.

Tuesday severe risk
Tuesday severe risk
Twin Cities National Weather Service

Keep an eye out for possible warnings later Tuesday afternoon.