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

    
                        

812

NWUS53 KLOT 162327

LSRLOT



Preliminary Local Storm Report...Summary

National Weather Service Chicago IL

627 PM CDT Thu Apr 16 2026



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

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

            ..REMARKS..



0530 PM     Funnel Cloud     4 SSE Oregon            41.97N 89.32W

04/15/2026                   Ogle               IL   Public



            Funnel cloud two thirds of the way down to

            the ground. Observed on Rochelle Airport

            webcam.



0550 PM     Funnel Cloud     1 SSW Stillman Valley   42.09N 89.19W

04/15/2026                   Ogle               IL   Broadcast Media



            Funnel cloud via broadcast media.



0604 PM     Funnel Cloud     2 WNW Lindenwood        42.06N 89.07W

04/15/2026                   Ogle               IL   Public



            Funnel cloud one third of way to the ground.



0812 PM     Tstm Wnd Dmg     3 SSW Seward            42.20N 89.37W

04/15/2026                   Ogle               IL   NWS Storm Survey



            Tree uprooted and possible door or siding

            damage to farm outbuilding. Time estimated

            from radar.



0815 PM     Tstm Wnd Dmg     1 N Seward              42.25N 89.36W

04/15/2026                   Winnebago          IL   Emergency Mngr



            Two power poles downed along Pecatonica Road

            just north of Kelley Road. Time estimated

            from radar.



0816 PM     Tstm Wnd Dmg     2 SE Seward             42.22N 89.33W

04/15/2026                   Winnebago          IL   NWS Storm Survey



            Updates previous tstm wnd dmg report from 2

            SE Seward. Several tree branches downed

            along Murphy Road west of Conger Road. Time

            estimated from radar.



0819 PM     Tstm Wnd Dmg     2 ESE Seward            42.23N 89.32W

04/15/2026                   Winnebago          IL   NWS Storm Survey



            Small portion of metal roof paneling peeled

            off of farm outbuilding. Time estimated from

            radar.



0820 PM     Tstm Wnd Dmg     3 SW Winnebago          42.23N 89.28W

04/15/2026                   Winnebago          IL   NWS Storm Survey



            Medium to large tree branches downed. Time

            estimated from radar.



0820 PM     Hail             Winnebago               42.27N 89.24W

04/15/2026  M1.00 Inch       Winnebago          IL   Trained Spotter







0827 PM     Hail             4 ENE Winnebago         42.30N 89.17W

04/15/2026  M1.00 Inch       Winnebago          IL   Broadcast Media



            reported at WIFR.



0830 PM     Tstm Wnd Dmg     4 NE Byron              42.17N 89.21W

04/15/2026                   Ogle               IL   Emergency Mngr



            Tree downed.



0845 PM     Hail             Poplar Grove            42.37N 88.82W

04/15/2026  E1.00 Inch       Boone              IL   Public



            relayed by broadcast media.



0900 PM     Flash Flood      Machesney Park          42.35N 89.04W

04/15/2026                   Winnebago          IL   Public



            At least one report of basement flooding in

            Machesney Park. Time estimated.



0938 PM     Tstm Wnd Dmg     2 NNW Kaneville         41.86N 88.53W

04/15/2026                   Kane               IL   Emergency Mngr



            semi overturned on I-88 westbound. Westbound

            shut down at Dauberman Road.



0940 PM     Tstm Wnd Dmg     1 SSW Kaneville         41.82N 88.53W

04/15/2026                   Kane               IL   Fire Dept/Rescue



            relayed by EM. power lines and possibly

            power poles down along Dauberman Road.



0944 PM     Tstm Wnd Dmg     3 ESE Elburn            41.88N 88.42W

04/15/2026                   Kane               IL   Emergency Mngr



            trees reported down blocking roadway.

            Keslinger and Harley Roads. Vehicle then

            struck downed tree. no injuries reported.



0959 PM     Tstm Wnd Gst     DuPage Airport          41.91N 88.25W

04/15/2026  M53 MPH          DuPage             IL   ASOS







1018 PM     Tstm Wnd Gst     1 WNW Ohare Airport     41.98N 87.93W

04/15/2026  M48 MPH          DuPage             IL   Mesonet



            peak wind gust at Ohare airport measured at

            runway sensor 27L.



1040 PM     Marine Tstm Wind 1 NE Montrose Harbor    41.97N 87.63W

04/15/2026  M43 MPH          LMZ741             IL   Mesonet



            Mesonet station XMTB Montrose Beach Light.



1046 PM     Marine Tstm Wind 3 NE Navy Pier          41.92N 87.57W

04/15/2026  M39 MPH          LMZ741             IL   Mesonet



            Mesonet station CHII2 Harrison-Dever Crib.





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