Winter storm warnings have been posted in at least four Midwestern states as spring pauses for a mix of rain and snow just days before the calendar turns to May.

The Chicago White Sox scratched a Saturday baseball game with the Detroit Tigers as snow fell in northern Illinois. The National Weather Service predicted as much as 8 inches (20 centimeters) on both sides of the Illinois-Wisconsin border. Hundreds of flights were canceled at Chicago airports.

Winter storm warnings were also posted for southern Minnesota and northeastern Iowa, where snow was piling up.

Chicago Police Sgt. Richard Unizycki, watches as a fellow sergeant takes a police horse into a transport trailer at the South Shore Cultural Center as snow falls Saturday, April 27, 2019, in Chicago. (John J. Kim/Chicago Tribune via AP)
Chicago Police Sgt. Richard Unizycki, watches as a fellow sergeant takes a police horse into a transport trailer at the South Shore Cultural Center as snow falls Saturday, April 27, 2019, in Chicago. (John J. Kim/Chicago Tribune via AP)

The National Weather Service is predicting difficult travel and possible tree damage due to strong winds and limited visibility. The temperature in Chicago was 33 degrees (0.56 Celsius), 30 degrees colder than Friday’s conditions.

A woman walks past a man standing under the marquee of the Avalon Regal Theater as snow falls in the 1600 block of East 79th Street Saturday, April 27, 2019, in Chicago. (John J. Kim/Chicago Tribune via AP)
A woman walks past a man standing under the marquee of the Avalon Regal Theater as snow falls in the 1600 block of East 79th Street Saturday, April 27, 2019, in Chicago. (John J. Kim/Chicago Tribune via AP)
Jodi Frisk is surrounded by snowflakes while walking along a paved path near the Quarry Hill Nature Center on Saturday, April 27, 2019, in Rochester, Minn. (Andrew Link/The Rochester Post-Bulletin via AP)
Jodi Frisk is surrounded by snowflakes while walking along a paved path near the Quarry Hill Nature Center on Saturday, April 27, 2019, in Rochester, Minn. (Andrew Link/The Rochester Post-Bulletin via AP)
John Giudicessi and his one-year-old son, Hugo, try to catch snowflakes while walking to their car after visiting the Quarry Hill Nature Center on Saturday, April 27, 2019, in Rochester, Minn. (Andrew Link/The Rochester Post-Bulletin via AP)
John Giudicessi and his one-year-old son, Hugo, try to catch snowflakes while walking to their car after visiting the Quarry Hill Nature Center on Saturday, April 27, 2019, in Rochester, Minn. (Andrew Link/The Rochester Post-Bulletin via AP)

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