A major trough/cold front is forecast to move through the eastern Great Lakes on Friday, ushering in the coldest air of the season with highs on Saturday struggling to reach the upper 30s; typical high/low temps on 11/12 are 48/34F, so this is a well below normal temperature pattern. Will likely be mostly dry, although a few brief/light rain and/or snow showers (Lake enhanced, meaning there's an outside shot at small snow accumulations if the Lake effect machine overperforms) are possible at this point and in the wake of the front it could be breezy to perhaps even windy with 20+ mph gusts. It's Michigan folks.
https://www.weather.gov/grr/
-- Colder behind a powerful cold front on Friday --
The Western U.S. trough will move into the Plains on Thursday and
take aim on the Great Lakes by Friday. A strong surface cold
front will plow into the area on Friday ushering in much colder
air behind it. The front will have a band of rain/rain showers
along it as it moves through during the day. At this point it does
not look like enough instability for thunderstorms but we will
have to watch that given the strength of the front.
850mb temps drop from +14C in the ECMWF Thursday night to near -10C
over the weekend. Lake temperatures right now are around +11C so
the lake is activated for lake rain/snow at -2C. Friday
night through Sunday we should see lake effect rain and snow
showers transition more towards snow given -10C air at 850mb. At
this point it does not look like any major snow, but a slushy wet
snow of 1-2 inches is not out of the question, especially away
from the immediate lakeshore where the warmer lake boundary layer
will keep precipitation a mix of rain and snow. Our current high
temperatures next weekend are in the 30s.
https://www.weather.gov/grr/
-- Colder behind a powerful cold front on Friday --
The Western U.S. trough will move into the Plains on Thursday and
take aim on the Great Lakes by Friday. A strong surface cold
front will plow into the area on Friday ushering in much colder
air behind it. The front will have a band of rain/rain showers
along it as it moves through during the day. At this point it does
not look like enough instability for thunderstorms but we will
have to watch that given the strength of the front.
850mb temps drop from +14C in the ECMWF Thursday night to near -10C
over the weekend. Lake temperatures right now are around +11C so
the lake is activated for lake rain/snow at -2C. Friday
night through Sunday we should see lake effect rain and snow
showers transition more towards snow given -10C air at 850mb. At
this point it does not look like any major snow, but a slushy wet
snow of 1-2 inches is not out of the question, especially away
from the immediate lakeshore where the warmer lake boundary layer
will keep precipitation a mix of rain and snow. Our current high
temperatures next weekend are in the 30s.