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

    
                        

813

NWUS53 KLOT 052226

LSRLOT



Preliminary Local Storm Report...Summary

National Weather Service Chicago IL

426 PM CST Thu Dec 5 2024



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

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

            ..REMARKS..



0536 PM     Non-Tstm Wnd Dmg 1 WNW Bull Valley       42.32N 88.37W

12/04/2024                   McHenry            IL   Broadcast Media



            Tree down blocking Bull Valley Rd.



0551 PM     Non-Tstm Wnd Gst Midway Airport          41.79N 87.75W

12/04/2024  M58 MPH          Cook               IL   Official NWS Obs



            Corrects previous non-tstm wnd gst report

            from Midway Airport.



0551 PM     Non-Tstm Wnd Gst 3 SW Midway Airport     41.74N 87.78W

12/04/2024  M60 MPH          Cook               IL   CO-OP Observer







0600 PM     Non-Tstm Wnd Dmg 1 NNW Douglas - Chicago 41.85N 87.62W

12/04/2024                   Cook               IL   NWS Employee



            Roof damage to building with considerable

            debris scattered downstream of the building.



0603 PM     Non-Tstm Wnd Gst 2 WNW Sugar Grove       41.77N 88.48W

12/04/2024  M58 MPH          Kane               IL   ASOS







0620 PM     Non-Tstm Wnd Gst Gary Airport            41.62N 87.42W

12/04/2024  M62 MPH          Lake               IN   AWOS







0623 PM     Non-Tstm Wnd Dmg 2 E Woodstock           42.32N 88.41W

12/04/2024                   McHenry            IL   Broadcast Media



            Large branch down onto a vehicle with person

            trapped in vehicle.



0630 PM     Non-Tstm Wnd Dmg 4 WNW Bolingbrook       41.71N 88.14W

12/04/2024                   Will               IL   NWS Employee



            Large part of a tree down blocking Knoch

            Knoll Rd near Knoch Knoll Park in

            Naperville.



0930 PM     Non-Tstm Wnd Dmg 5 SW Sibley             40.53N 88.44W

12/04/2024                   Ford               IL   Emergency Mngr



            Power lines down across E 900 N and N 100 E

            rd between Gibson City and Sibley. FD on

            scene to shut the road down. Report received

            at 10:10 PM.



0953 PM     Snow Squall      1 S Hanover Park        41.99N 88.15W

12/04/2024                   Cook               IL   Emergency Mngr



            EM reports visibility under 500 feet for

            approximately 20 minutes with roads

            completely covered by snow.



1035 PM     Snow Squall      Gary Airport            41.61N 87.41W

12/04/2024                   Lake               IN   AWOS



            Gary AWOS reports 1/4 mile visibility and

            winds gusting 30 to 40 mph. Area webcams

            show rapid snow accumulations on nearby

            interstates.



1035 PM     Snow Squall      1 NNE Lynwood           41.54N 87.53W

12/04/2024                   Cook               IL   AWOS



            Lansing AWOS reported 1/4 mile visibility

            and a 28 mph gust. Area webcams show rapid

            accumulations on interstates.





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