Cool Low Pressure System To Bring Needed Rain To Southeast Lower Michigan.

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


  1. When do we see tornadoes

  2. Hopefully never! This is the peak /June/ of tornado season for Southeast Lower Michigan but it can vary. Tornado season runs "generally" from March into September. Tornadoes generally form when a warm unstable air mass clashes with a drier, cooler air mass; in a form of a cold front. As the cold front approaches; storm development can become severe and the storms begin to rotate clockwise (or right turners). They will also form along a warm front when there's more spin in the atmosphere (the winds veer; turn clockwise) sharply in the low levels of the atmosphere. The warm unstable air pushes n-ne rudely into the drier stable air; never underestimate severe weather and tornado development with a warm front when conditions are right! Occasionally; weaker tornadoes can even form along Lake breezes as cooler air pushes inland from the Great Lakes and storms develop - our "Thumb Region" of Southeast Michigan is notorious for that.