A low pressure system with good dynamics and moisture supply will bring a steady rain to much of Southeast Lower Michigan Overnight into Friday morning. As mentioned earlier this week; this low pressure system's makeup is more like that of a winter-type system rather than a first day of meteorological summer /June 1st/.
Looking at the system and track below does remind one of a good snowstorm in the making for Southeast Lower Michigan. While temperatures will be cool they will be no where near winter-like. As mentioned; the storm center and lower pressure are will bring a steady cool rain to the area; mainly totally .50" to locally as high as an inch.
Much of Southeast Lower Michigan has been on the dry side recently with the early growing season upon us; so this rain will be a welcome sight. This notable change to the upper and surface level pattern; resulting in cooler weather (when compared late May's warm pattern) looks like it will stick around for possibly the first week of June.
Making weather fun while we all learn,
Bill Deedler -SEMI_WeatherHistorian