Here’s a map showing rainfall from Hurricane Helene (which has not totally ended yet, as the tropical depression that was Hurricane Helene is still stalled over the Ohio Valley). Note the heaviest rainfall was inland, not at the coast. A stream of very moist air had to lift to get over the Smoky Mountains. So, the heaviest rain was in western North Carolina. There were some totals in the 5-6″ range up into southern Indiana and southern Ohio. As of 8 am, South Bend IN had 0.17″ and Detroit 0.08″. As we expected, there are scattered showers at the Michigan/Minnesota football game.
While there is a chance of a shower, mainly south and east of Grand Rapids this weekend, any rainfall here would be light.
Showers will be moving from east to west. We don’t see that too often in Michigan. At our latitude, we have the “prevailing westerlies”, and weather tends to move from west to east. The latitude from 40° to 50° is also sometimes called the “roaring 40s” due to the stronger winds that can occur occasionally here.