A strong August low is expected to move into Michigan Tue morning. Some model guidance brings its central pressure into record territory (below 1000 hPa) for Aug Tue morning. Main impacts from the system should be heavy rains & wind over MI & the Great Lakes Mon & Tue. pic.twitter.com/NhXGYqbIHV

— NWS Weather Prediction Center (@NWSWPC) August 16, 2018