Grade A

At 1153, Bay City was seeing clear skies and a temperature of 44 degrees. There was a rather dormant pressure pattern over the region, at least at the surface. The pattern aloft was a chaotic mess, with Arctic troughs swinging through Canada, and a subtropical jet plowing through the southeast. Riding the subtropical jet was a sinusoidal trough-ridge pattern that was both canceling any development over the Great Lakes and enhancing development over New Mexico.
The wave pattern will devolve through the coming 24 hour, leading to the upper trough over New Mexico to drift aimlessly to the north towards the Northern Plains. Eventually, it will mean light rain showers for the Bay City area, likely not until after noon or evening on Wednesday. A decided lack of energy will mean that any rain will be light and scattered.
Tomorrow - Mostly sunny, High 53, low 30
Wednesday - Increasing clouds, with late rain or drizzle, High 48, Low 35

TWC: Tomorrow - Partly cloudy skies. High 52, Low 30
Wednesday - Few showers. High 49, Low 35

AW: Tomorrow - Partly sunny High 52, Low 26
Wednesday - Mostly cloudy with a little rain; breezy and colder High 45, Low 30

NWS: Tomorrow - Mostly sunny, High 52, Low 28
Wednesday - A 50 percent chance of rain. Mostly cloudy High 45, Low 34

WB: Tomorrow - Mostly sunny High 53, Low 28
Wednesday - Mostly cloudy. A chance of light rain. High 46, low 34

The Weather Service and Weather Bug really have the rain getting in there early. Will that bear out? We shall see. Satellite shows a quiet Great Lakes.