January 19, 2021: Intense Evening Snow Squall Impacts Parts of Chicago Metro

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Radar Loop from 8:08 PM to 10:21 PM CST 1/19

KLOT Radar Loop and Snowfall Reports

Fast Facts
Snow/Ice Totals
Storm Reports
Additional

Fast Facts

An intense snow squall associated with an Alberta clipper rushed through northeast Illinois during the evening hours.

Snowfall amounts ranged from 1-4" in a narrow band from Boone County to Cook County to parts of northwest Indiana.

Official snowfall total for Chicago, at O'Hare International Airport, was 1.5" with the snow squall and 1.7" total for January 19th.

Highest amount reported from a volunteer observer was 3.4" in Bull Valley (east central McHenry County).

Snow/Ice Totals

Snowfall Map as of the Morning of Wednesday January 20th

Text Listing of Snowfall Reports from Volunteer Observers

Storm Reports

Map of Snowfall Local Storm Reports

    
                        

763

NWUS53 KLOT 211642

LSRLOT



Preliminary Local Storm Report

National Weather Service Chicago IL

1042 AM CST Fri Feb 21 2025



..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...

..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....

            ..REMARKS..



0600 AM     Ice Jam          1 S Shelby              41.18N 87.35W

02/21/2025                   Lake               IN   Public



            SLBI3 river gauge on the Kankakee River

            indicates likely developing ice jam near or

            downstream of Shelby. Ice jam formed around

            midday yesterday and is currently causing at

            least 1-2 feet of backwater effect, but no

            known flooding at this time.





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WSL

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