The main threat this weekend appears to be widespread rainfall, which is something we haven't seen much of in Southwest Michigan in quite some time. The current forecast continues to indicate a solid area of 1"-3" of total rain for the region by Sunday night, with the highest amounts from the I-96 corridor and northward. Localized amounts over 3" are not out of the question. One impact from this rainfall will include ponding on area roads. Watch out especially for roads that are covered by leaves, as drains may be clogged in those situations and the water may collect on the road instead. Another impact will be rising rivers and streams, but most rivers are expected to remain within their banks given the low flows and dry antecedent conditions overall prior to this rain.
A few thunderstorms are likely today as the storm approaches Michigan. A few stronger storms are possible with some strong wind gusts possible, perhaps as high as 50-60 mph in the strongest storms. Otherwise, it will be a breezy day overall with mild temperatures from the Grand Rapids area to the south. We are not in the slight risk area for severe weather, given most of the stronger storms will be south of our area. Please refer to the below images for the latest severe weather outlook as well as forecast rain amounts.
Below is the latest severe weather outlook for today.
The following map depicts expected storm total rainfall for the weekend storm.
Winds are expected to increase this evening and during the overnight hours. Winds of around 40 mph will be possible as cooler air rushes in across the area.