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Forecasters have been warning for about a month that a weakening in the polar vortex could send bitter cold plunging into Wisconsin.
The second of the two cross-country storms will bring rain, an icy mix and snow across the Central states before moving towards the Great Lakes and Northeast.
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The heat will continue to build from the northern Plains to parts of the East Coast, sending temperatures into the triple digits across the Midwest.
Photos: Remembering huge snowstorm that hit Madison in April 1973
Wisconsin State Journal, April 10, 1973
April 1973 snowfall
Scenes from a powerful spring storm on April 10, 1973.
April 1973 snowfall
Wind-whipped pedestrians, slipping cars and heavy snow clogged Capitol Square during record snowfall April 10, 1973.
April 1973 snowfall
Scenes from a powerful spring snowstorm on April 10, 1973.
April 1973 snowfall
Scenes from a powerful spring snowstorm on April 10, 1973 in Madison.
April 1973 snowfall
Scenes from a powerful spring snowstorm on April 10, 1973, in Madison.
April 1973 snowfall
Scenes from a powerful spring snowstorm on April 10, 1973, in Madison.
April 1973 snowfall
Scenes from a powerful spring snowstorm on April 10, 1973, in Madison.
April 1973 snowfall
Scenes from a powerful spring snowstorm on April 10, 1973, in Madison.
April 1973 snowfall
James Muehl, a student at Madison Area Technical College, found himself straddling a snowdrift in April 1973 as he walked to class at MATC Technical Center, 2125 Commercial Ave. The school held classes during the snowstorm, but attendance was severely reduced.
April 1973 snowfall
Snowdrifts pile high as a spring storm smothers Downtown Madison in April 1973.
April 1973 snowfall
Cars buried along East Gorham Street in Madison on April 10, 1973.
Front page of the Wisconsin State Journal, April 10, 1973
Front page of the Wisconsin State Journal, April 10, 1973
April 1973 snowfall
Scenes from a powerful spring storm on April 10, 1973.
April 1973 snowfall
Wind-whipped pedestrians, slipping cars and heavy snow clogged Capitol Square during record snowfall April 10, 1973.
April 1973 snowfall
Scenes from a powerful spring snowstorm on April 10, 1973.
April 1973 snowfall
Scenes from a powerful spring snowstorm on April 10, 1973 in Madison.
April 1973 snowfall
Scenes from a powerful spring snowstorm on April 10, 1973, in Madison.
April 1973 snowfall
Scenes from a powerful spring snowstorm on April 10, 1973, in Madison.
April 1973 snowfall
Scenes from a powerful spring snowstorm on April 10, 1973, in Madison.
April 1973 snowfall
Scenes from a powerful spring snowstorm on April 10, 1973, in Madison.
April 1973 snowfall
James Muehl, a student at Madison Area Technical College, found himself straddling a snowdrift in April 1973 as he walked to class at MATC Technical Center, 2125 Commercial Ave. The school held classes during the snowstorm, but attendance was severely reduced.
April 1973 snowfall
Snowdrifts pile high as a spring storm smothers Downtown Madison in April 1973.
April 1973 snowfall
Cars buried along East Gorham Street in Madison on April 10, 1973.

