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Frigid Airmass to Bring Significantly Colder Temperatures; Snow Continues Downwind of the Great Lakes

A frigid cold airmass will bring significantly colder weather across the eastern two thirds of the country early this week. Record low temperatures are expected in the Southeast by Tuesday morning. Moderate to heavy lake effect snow will continue downwind of the Great Lakes through Monday. Several inches of snow accumulation is expected, including in portions of the Chicago Metro Read More >

Overview

A strong area of low pressure listed northeast across the region, bringing a swath of heavy snow to southern Wisconsin late Friday, March 24th into Saturday, March 25th, 2023. 

Initially, the surface low was forecast to track northeast across southern Illinois and central Indiana, with a west to east area of banded snowfall. However, as the event unfolded the surface low tracked further northwest across northeast Illinois and northwest Indiana. This allows the banded area of heavy snow to shift to the west and become oriented more south to north. 

The snow stacked up quickly due to impressive snowfall rates on Saturday morning, leading to difficult travel and a few isolated power outages. Both Madison and Milwaukee saw record snowfall during this event. Head over to the Snow Records and Reports tab to see these records! 

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How the storm track and axis of heavier snow shifted west.
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