... Significant lake effect snows possible near Lake Superior
Wednesday night through Friday evening...
Low pressure currently over Minnesota will move across Upper
Michigan tonight... then merge with developing low pressure over
the Ohio Valley on Wednesday. Behind the low... winds will turn
north and northwest... allowing colder air to move across the
relatively warm waters of Lake Superior. This setup will likely
lead to the first significant lake effect snows of the season for
areas near Lake Superior. Current data suggests that areas favored
by a northerly wind direction... such as inland north central Upper
Michigan as well as areas near Ironwood... will see accumulating
snow Wednesday night into Thursday morning. As the winds turn
northwesterly Thursday afternoon and evening... all of western
Upper Michigan from Ironwood to the Keweenaw peninsula could see
moderate lake effect snow accumulations.
Widespread lake effect snow is also anticipated to fall across
lake effect snow belts east of Marquette favored by a northwest wind.
However... the latest information suggests this snow will not be as
heavy as previously thought as winds quickly shift to the west on
Thursday night... shifting the heavier snow over Lake Superior.
Listen to NOAA Weather Radio or your local media for updates on
this situation.
506 am EST Tue Dec 1 2009 /406 am CST Tue Dec 1 2009/
... Significant lake effect snows possible near Lake Superior
Wednesday night through Friday...
Low pressure currently over the Dakotas will move to the northern
lakes tonight... then merge with developing low pressure over the Ohio
Valley on Wednesday. Behind the low... winds will turn north and
northwest... allowing colder air to move across the relatively warm
waters of Lake Superior. This setup will likely lead to the first
significant lake effect snows of the season for areas near Lake
Superior. Current data suggests that areas favored by northerly
wind direction... such as inland north central Upper Michigan as
well as areas near Ironwood... will see accumulating snow
Wednesday night into Thursday. As the winds turn northwesterly
Thursday night into Friday... all of western Upper Michigan from
from Ironwood to the Keweenaw peninsula... as well as areas east of
Marquette... may see moderate to locally heavy snowfall. Snowfall
will be highly dependent on wind direction... however there is a
potential for significant snow accumulation for some areas by
Saturday.
Listen to NOAA Weather Radio or your local media for the later
updates on this situation.