MINNEAPOLIS (WCCO) — Wednesday night’s flash flood threat has shifted a bit further south, according to WCCO-TV Meteorologist Mike Augustyniak.

Severe weather is moving across northern Minnesota Thursday night, and the National Weather Service says there have been two reports of a tornado on the ground in St. Louis County between Orr and Gheen just after 8 p.m. They are still working on confirming these reports.

Tuesday night’s storms have left a cap on the atmosphere for much of the central and southern parts of the state. But a jet stream moving northeast from Colorado will enter into southern Minnesota late Wednesday night, helping to unlock all of the heat and humidity and turn it into heavy rain overnight.

Between 1 a.m. and 4 a.m. Thursday, heavy thunderstorm activity will move into southern Minnesota. Damaging straight-line winds and hail will be possible. The Twin Cities will be on the northern fringe of this severe weather, and it’s possible there might be a couple hours of heavy rain during the morning commute.

The southeastern half of the state will likely get the most rainfall, with 1 to 3 inches possible. A Flash Flood Watch is in effect Wednesday night into early Thursday, but it excludes the Twin Cities metro.
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The system will be out of Minnesota by mid-morning, leaving another cap over the atmosphere, warding off severe weather for the rest of Thursday – but a Heat Advisory will be in effect for the metro and the southeastern corner of the state from 1 p.m. Thursday into Friday. Highs will be in the low 90s, but it will feel like it’s between 95-100 degrees.

Friday will be warmer, and there will be storms passing through northeast Minnesota in the evening — with a chance for heavy rain in the metro in the overnight. But relief from the heat, flash floods and storms comes Saturday, and we’ll enjoy a spell of calmer weather next week.

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