Dangerous, prolonged heat is ongoing in the Mid-South to Mid-Mississippi Valley and heat expands into the Northeast for a brief period today. Widely scattered instances of flash flooding due to heavy rains are forecast from northeast Kansas to much of Indiana. Scattered strong to severe thunderstorms are possible across parts of New England, northern Mid-Atlantic, and North Dakota. Read More >
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Fast Facts
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| Chicago O'Hare observations during heaviest snow. |
Snow Totals
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| Map of final snowfall totals for the area |
The below listing is sorted by magnitude. To see a listing sorted by location, see here.
Public Information Statement National Weather Service Chicago IL 407 PM CST Mon Feb 1 2021 ...STORM TOTAL SNOWFALL FROM JANUARY 30-31 2021 SORTED BY MAGNITUDE... Location Amount Time/Date Provider --------------------------------------------------------------- Monee 5 SE 15.3 in 0800 AM 02/01 COCORAHS Harwood Heights 13.8 in 0700 AM 02/01 COCORAHS Elmhurst 1 SE 13.5 in 0700 AM 02/01 COCORAHS Crete 3 E 13.4 in 0700 AM 02/01 COCORAHS Romeoville - NWS Chicago 12.9 in 0600 AM 02/01 Official NWS Obs Downers Grove 1 NNW 12.7 in 0659 AM 02/01 COCORAHS Thornton 12.7 in 1100 PM 01/31 Trained Spotter Peotone 12.7 in 0655 PM 01/31 Trained Spotter St. John 3 SSE 12.5 in 0700 AM 02/01 COCORAHS Evanston 1 E 12.4 in 0800 AM 02/01 COCORAHS Peotone 12.4 in 0700 AM 02/01 COOP 1 NNW Downers Grove 12.4 in 0600 PM 01/31 Cocorahs Dyer 12.1 in 0700 AM 02/01 COCORAHS Morton Grove 12.1 in 0730 PM 01/31 Broadcast Media Forest Park 1 ENE 12.0 in 0700 AM 02/01 COCORAHS Berwyn 12.0 in 1200 AM 02/01 Public Deerfield 12.0 in 0500 PM 01/31 Public Highwood 11.8 in 0600 AM 02/01 COCORAHS Park Forest 1 NNE 11.7 in 0700 AM 02/01 COCORAHS Chicago - West Ridge 11.5 in 0700 AM 02/01 COCORAHS Homer Glen 1 NNE 11.5 in 0600 AM 02/01 COCORAHS Flossmoor 11.5 in 0709 PM 01/31 Trained Spotter Mokena 1 W 11.4 in 0700 AM 02/01 COCORAHS Roselle 1 NNW 11.4 in 0700 AM 02/01 COCORAHS Lindenhurst 1 NNW 11.4 in 0700 AM 02/01 COCORAHS Mokena 11.4 in 1200 AM 02/01 Trained Spotter 1 NNW Lindenhurst 11.4 in 0930 PM 01/31 Cocorahs 1 NNW Roselle 11.4 in 0600 PM 01/31 Cocorahs Long Lake 11.3 in 0800 AM 02/01 COCORAHS Midway 3 SW COOP 11.3 in 1200 AM 02/01 COOP Riverwoods 1 NE 11.2 in 0700 AM 02/01 COCORAHS Grandwood Park 1 SE 11.2 in 0700 AM 02/01 COCORAHS St. John 11.2 in 0600 AM 02/01 COCORAHS DeMotte 11.2 in 0600 AM 02/01 COCORAHS Homewood 11.1 in 0700 AM 02/01 COCORAHS Algonquin 1 NNW 11.1 in 0615 AM 02/01 COCORAHS Franklin Park 0.5 SSE 11.0 in 0800 AM 02/01 COCORAHS Mokena 2 WSW 11.0 in 0700 AM 02/01 COCORAHS Lockport 2 SE 11.0 in 0700 AM 02/01 COCORAHS Glen Ellyn 1 W 11.0 in 0700 AM 02/01 COCORAHS Lansing 11.0 in 1200 AM 02/01 CO-OP Observer Morgan Park - Chicago 11.0 in 1000 PM 01/31 Public 2 N Homer Glen 11.0 in 0520 PM 01/31 Public 2 ENE Manhattan 11.0 in 0430 PM 01/31 Public Crown Point 2 NNE 10.9 in 0800 AM 02/01 COCORAHS Darien 2 SE 10.9 in 0715 AM 02/01 COCORAHS Glen Ellyn 1 SW 10.8 in 0800 AM 02/01 COCORAHS Ohare Airport 10.8 in 1200 AM 02/01 Official NWS Obs 1 SW Medinah 10.8 in 0800 PM 01/31 Cocorahs Joliet 10.7 in 0500 PM 01/31 Trained Spotter 1 NW Lowell 10.6 in 0457 PM 01/31 Public Oak Lawn 10.5 in 0845 AM 02/01 COCORAHS Bolingbrook 3 NE 10.5 in 0700 AM 02/01 COCORAHS Libertyville 10.5 in 0900 PM 01/31 Trained Spotter Dyer 10.5 in 0800 PM 01/31 Public Oak Lawn 10.5 in 0515 PM 01/31 Public 1 WNW Woodridge 10.5 in 0415 PM 01/31 NWS Employee Rensselaer 2 SW 10.4 in 0730 AM 02/01 COOP Munster 1.5 NNW 10.4 in 0715 AM 02/01 COCORAHS Buffalo Grove 2 N 10.4 in 0700 AM 02/01 COCORAHS 1 SW Kankakee 10.3 in 0900 AM 02/01 Trained Spotter Mundelein 1 NNE 10.3 in 0800 AM 02/01 COCORAHS 1 ESE Schaumburg 10.3 in 0630 PM 01/31 Cocorahs Park Forest 1 WNW 10.0 in 0730 AM 02/01 COCORAHS Plainfield 4 SW 10.0 in 0700 AM 02/01 COCORAHS Naperville 10.0 in 0600 AM 02/01 COCORAHS Somonauk 2 NE 10.0 in 0500 AM 02/01 COCORAHS DeKalb 9.8 in 0700 AM 02/01 COOP Park Ridge 1 SSW 9.8 in 0700 AM 02/01 COCORAHS Antioch 9.8 in 0930 PM 01/31 Public Oak Lawn 2 WNW 9.6 in 0800 AM 02/01 COCORAHS Richmond 9.5 in 0900 AM 02/01 Public Barrington 9.5 in 0800 AM 02/01 COOP Wheatfield 3 SSE 9.5 in 0700 AM 02/01 COCORAHS Lisle 1 WSW 9.5 in 0700 AM 02/01 COCORAHS Elk Grove Village 1 ESE 9.5 in 0600 AM 02/01 COCORAHS Countryside 1 ENE 9.5 in 0500 AM 02/01 COCORAHS Kentland 9.5 in 0830 PM 01/31 Public Cedar Lake 2 S 9.3 in 0800 AM 02/01 COCORAHS Waukegan 2 N 9.1 in 0800 AM 02/01 COCORAHS Elk Grove Village 2 WSW 9.1 in 0645 AM 02/01 COCORAHS Remington 9.0 in 0745 AM 02/01 COCORAHS Palos Park 2 WSW 9.0 in 0700 AM 02/01 COCORAHS Oak Forest 1 NNW 9.0 in 0700 AM 02/01 COCORAHS Trout Valley 9.0 in 0700 AM 02/01 COCORAHS De Motte 6 S 9.0 in 0700 AM 02/01 COCORAHS Morton Arboretum 9.0 in 0700 AM 02/01 COOP Collegeville 9.0 in 0600 AM 02/01 COCORAHS Boone Grove 4 NNE 9.0 in 0600 AM 02/01 COCORAHS Kouts 9.0 in 0650 PM 01/31 Public 1 N Medinah 9.0 in 0500 PM 01/31 Cocorahs St. Charles 1 ENE 8.8 in 0800 AM 02/01 COCORAHS Joliet 2 N 8.7 in 0700 AM 02/01 UCOOP 1 ENE Chicago Loop 8.6 in 0800 PM 01/31 Broadcast Media Bridgeview 1 WNW 8.5 in 0730 AM 02/01 COCORAHS La Grange Park 1 SSW 8.5 in 0700 AM 02/01 COCORAHS Aurora 8.5 in 0700 AM 02/01 COOP St. Anne 8.4 in 0700 AM 02/01 COOP Valparaiso 1 N 8.4 in 0553 AM 02/01 COCORAHS 1 ENE St. Charles 8.4 in 0519 PM 01/31 Trained Spotter Hoffman Estates 8.3 in 0700 AM 02/01 COCORAHS Boone Grove 2 WNW 8.3 in 0700 AM 02/01 COCORAHS Palatine 1 E 8.2 in 0315 AM 02/01 COCORAHS West Chicago 4 SE 8.0 in 0713 AM 02/01 COCORAHS Elmhurst 1 SW 8.0 in 0700 AM 02/01 COCORAHS Timberlane 1 SW 8.0 in 0700 AM 02/01 COCORAHS Woodstock 5 NW 7.9 in 0700 AM 02/01 COOP Chesterton 7.8 in 1000 AM 02/01 Storm Chaser Mount Ayr 2 NNE 7.8 in 0830 AM 02/01 COCORAHS Bourbonnais 7.8 in 0700 AM 02/01 COOP Sycamore 7.8 in 0700 AM 02/01 COCORAHS Lake Summerset 7.8 in 0740 PM 01/31 Public Naperville 5 SSW 7.7 in 0700 AM 02/01 COCORAHS Cortland 7.7 in 0700 AM 02/01 COCORAHS Crystal Lake 1 WSW 7.6 in 0700 AM 02/01 COCORAHS Ogden Dunes 7.6 in 0600 AM 02/01 COCORAHS Palatine 1 NNE 7.5 in 0700 AM 02/01 COCORAHS Chesterton 4 ESE 7.5 in 0700 AM 02/01 COCORAHS Rockford 2 ENE 7.4 in 0900 AM 02/01 COCORAHS Coal City 4 NNW 7.4 in 0700 AM 02/01 UCOOP Gary 5 ENE 7.4 in 0700 AM 02/01 COCORAHS Porter 7.2 in 0700 AM 02/01 COCORAHS Elgin 3 W 7.1 in 0700 AM 02/01 COCORAHS Dwight 7.0 in 0700 AM 02/01 COOP Elgin 7.0 in 0700 AM 02/01 COOP Harvard 7.0 in 0700 AM 02/01 COOP Pecatonica 7.0 in 0530 PM 01/31 Public New Milford 7.0 in 0526 PM 01/31 Public Valparaiso 2 NNW 6.9 in 0850 AM 02/01 COCORAHS Carbon Hill 3 NNW 6.9 in 0700 AM 02/01 COCORAHS Ashkum 6 E 6.8 in 0700 AM 02/01 COCORAHS Rockford Airport 6.8 in 1200 AM 02/01 Official NWS Obs Carbon Hill 3 NW 6.5 in 0800 AM 02/01 COCORAHS West Chicago 4 NNE 6.5 in 0700 AM 02/01 COCORAHS South Beloit 6.5 in 0526 PM 01/31 Public Plainfield 4 NNW 6.4 in 0700 AM 02/01 COCORAHS Geneva 1 SSW 6.3 in 0730 AM 02/01 COCORAHS 4 NNW Rockford 6.3 in 0700 AM 02/01 COCORAHS Boulder Hill 1 NNE 6.3 in 0700 AM 02/01 COCORAHS Batavia 6.3 in 0600 AM 02/01 UCOOP Hebron 2 WSW 6.1 in 0700 AM 02/01 UCOOP Valparaiso 4 SW 6.1 in 0600 AM 02/01 COCORAHS McHenry 1 ENE 6.0 in 0900 AM 02/01 COCORAHS Aurora 4 ESE 6.0 in 0700 AM 02/01 COCORAHS Capron 6.0 in 0700 AM 02/01 COCORAHS 2 SW Rockford 6.0 in 0526 PM 01/31 Public Geneva 5.2 in 0700 AM 02/01 COCORAHS Geneva 2 WNW 5.1 in 0700 AM 02/01 COCORAHS Crescent City 2 N 4.3 in 0600 AM 02/01 COCORAHS Earlville 3 S 4.2 in 0600 AM 02/01 COOP Ashton 4.1 in 0710 AM 02/01 COCORAHS Chatsworth 4.0 in 0500 PM 01/31 CO-OP Observer Fairbury 3.2 in 0700 AM 02/01 COOP Gilman 2.0 in 0830 PM 01/31 Public Gibson City 1.5 in 0830 PM 01/31 Public 1 N Milford 1.5 in 0830 PM 01/31 Public Observations are collected from a variety of sources with varying equipment and exposures. We thank all volunteer weather observers for their dedication. Not all data listed are considered official. $$
Storm Reports
PRELIMINARY LOCAL STORM REPORT...SUMMARY NATIONAL WEATHER SERVICE CHICAGO IL 400 PM CST MON FEB 1 2021 ..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON... ..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE.... ..REMARKS.. 1000 AM HEAVY SNOW CHESTERTON 41.61N 87.06W 02/01/2021 M7.8 INCH PORTER IN STORM CHASER 2-DAY TOTAL. 0900 AM HEAVY SNOW 1 SW KANKAKEE 41.11N 87.87W 02/01/2021 M10.3 INCH KANKAKEE IL TRAINED SPOTTER 2-DAY TOTAL. 0900 AM HEAVY SNOW RICHMOND 42.48N 88.31W 02/01/2021 M9.5 INCH MCHENRY IL PUBLIC 2-DAY TOTAL. RELAYED VIA BROADCAST MEDIA. 0900 AM HEAVY SNOW 3 SSE LOVES PARK 42.28N 89.04W 02/01/2021 M7.4 INCH WINNEBAGO IL COCORAHS COCORAHS STATION IL-WN-26 ROCKFORD 2 ENE. 0900 AM HEAVY SNOW 1 ENE MCHENRY 42.35N 88.25W 02/01/2021 M6.0 INCH MCHENRY IL COCORAHS COCORAHS STATION IL-MCH-94 MCHENRY 1 ENE. 0850 AM HEAVY SNOW 2 NNW VALPARAISO 41.50N 87.07W 02/01/2021 M6.9 INCH PORTER IN COCORAHS COCORAHS STATION IN-PT-63 VALPARAISO 2 NNW. 0845 AM HEAVY SNOW OAK LAWN 41.71N 87.75W 02/01/2021 M10.5 INCH COOK IL COCORAHS COCORAHS STATION IL-CK-149 OAK LAWN. 0830 AM HEAVY SNOW 2 NNE MOUNT AYR 40.97N 87.29W 02/01/2021 M7.8 INCH NEWTON IN COCORAHS COCORAHS STATION IN-NW-1 MOUNT AYR 2 NNE. 0830 AM HEAVY SNOW LAKES OF THE FOUR SEASO 41.41N 87.21W 02/01/2021 M6.0 INCH PORTER IN COCORAHS COCORAHS STATION IN-PT-79 LAKES OF THE FOUR SEASONS. 0800 AM HEAVY SNOW 2 WSW GOODENOW 41.38N 87.68W 02/01/2021 M15.3 INCH WILL IL COCORAHS COCORAHS STATION IL-WL-149 MONEE 5 SE. 0800 AM HEAVY SNOW 1 E EVANSTON 42.04N 87.68W 02/01/2021 M12.4 INCH COOK IL COCORAHS COCORAHS STATION IL-CK-336 EVANSTON 1 E. 0800 AM HEAVY SNOW LONG LAKE 42.37N 88.12W 02/01/2021 M11.3 INCH LAKE IL COCORAHS COCORAHS STATION IL-LK-100 LONG LAKE. 0800 AM HEAVY SNOW FRANKLIN PARK 41.93N 87.87W 02/01/2021 M11.0 INCH COOK IL COCORAHS COCORAHS STATION IL-CK-345 FRANKLIN PARK 0.5 SSE. 0800 AM HEAVY SNOW 2 NNE CROWN POINT 41.44N 87.35W 02/01/2021 M10.9 INCH LAKE IN COCORAHS COCORAHS STATION IN-LK-26 CROWN POINT 2 NNE. 0800 AM HEAVY SNOW 1 SW GLEN ELLYN 41.86N 88.08W 02/01/2021 M10.8 INCH DUPAGE IL COCORAHS COCORAHS STATION IL-DP-155 GLEN ELLYN 1 SW. 0800 AM HEAVY SNOW 1 NNE MUNDELEIN 42.27N 88.00W 02/01/2021 M10.3 INCH LAKE IL COCORAHS COCORAHS STATION IL-LK-54 MUNDELEIN 1 NNE. 0800 AM HEAVY SNOW 1 SSW BURBANK 41.73N 87.78W 02/01/2021 M9.6 INCH COOK IL COCORAHS COCORAHS STATION IL-CK-211 OAK LAWN 2 WNW. 0800 AM HEAVY SNOW 2 SSE BARRINGTON HILLS 42.12N 88.16W 02/01/2021 M9.5 INCH COOK IL CO-OP OBSERVER CO-OP OBSERVER STATION BARI2 BARRINGTON. 0800 AM HEAVY SNOW 2 S CEDAR LAKE 41.34N 87.44W 02/01/2021 M9.3 INCH LAKE IN COCORAHS COCORAHS STATION IN-LK-107 CEDAR LAKE 2 S. 0800 AM HEAVY SNOW 2 SSW BEACH PARK 42.40N 87.86W 02/01/2021 M9.1 INCH LAKE IL COCORAHS COCORAHS STATION IL-LK-19 WAUKEGAN 2 N. 0800 AM HEAVY SNOW 1 ENE ST. CHARLES 41.92N 88.30W 02/01/2021 M8.8 INCH KANE IL COCORAHS COCORAHS STATION IL-KN-64 ST. CHARLES 1 ENE. 0800 AM HEAVY SNOW 2 WNW BULL VALLEY 42.32N 88.39W 02/01/2021 M7.4 INCH MCHENRY IL COCORAHS COCORAHS STATION IL-MCH-13 BULL VALLEY 2 WNW. 0800 AM HEAVY SNOW 3 NW CARBON HILL 41.33N 88.33W 02/01/2021 M6.5 INCH GRUNDY IL COCORAHS COCORAHS STATION IL-GY-27 CARBON HILL 3 NW. 0745 AM HEAVY SNOW REMINGTON 40.77N 87.15W 02/01/2021 M9.0 INCH JASPER IN COCORAHS COCORAHS STATION IN-JS-47 REMINGTON. 0730 AM HEAVY SNOW 1 NW COLLEGEVILLE 40.92N 87.18W 02/01/2021 M10.4 INCH JASPER IN CO-OP OBSERVER CO-OP OBSERVER STATION RZZI3 RENSSELAER 2 SW. 0730 AM HEAVY SNOW 1 WNW PARK FOREST 41.49N 87.70W 02/01/2021 M10.0 INCH COOK IL COCORAHS COCORAHS STATION IL-CK-320 PARK FOREST 1 WNW. 0730 AM HEAVY SNOW 1 WNW BRIDGEVIEW 41.76N 87.82W 02/01/2021 M8.5 INCH COOK IL COCORAHS COCORAHS STATION IL-CK-12 BRIDGEVIEW 1 WNW. 0730 AM HEAVY SNOW 1 NNW BATAVIA 41.86N 88.32W 02/01/2021 M6.3 INCH KANE IL COCORAHS COCORAHS STATION IL-KN-78 GENEVA 1 SSW. 0715 AM HEAVY SNOW 2 SE DARIEN 41.73N 87.95W 02/01/2021 M10.9 INCH DUPAGE IL COCORAHS COCORAHS STATION IL-DP-79 DARIEN 2 SE. 0715 AM HEAVY SNOW 1 SSW HAMMOND 41.57N 87.51W 02/01/2021 M10.4 INCH LAKE IN COCORAHS COCORAHS STATION IN-LK-91 MUNSTER 1.5 NNW. 0713 AM HEAVY SNOW 2 SW WINFIELD 41.85N 88.18W 02/01/2021 M8.0 INCH DUPAGE IL COCORAHS COCORAHS STATION IL-DP-164 WEST CHICAGO 4 SE. 0710 AM SNOW ASHTON 41.86N 89.23W 02/01/2021 M4.1 INCH LEE IL COCORAHS COCORAHS STATION IL-LE-8 ASHTON. 0700 AM HEAVY SNOW HARWOOD HEIGHTS 41.97N 87.80W 02/01/2021 M13.8 INCH COOK IL COCORAHS COCORAHS STATION IL-CK-285 HARWOOD HEIGHTS. 0700 AM HEAVY SNOW 1 SE ELMHURST 41.89N 87.93W 02/01/2021 M13.5 INCH DUPAGE IL COCORAHS COCORAHS STATION IL-DP-109 ELMHURST 1 SE. 0700 AM HEAVY SNOW 3 S SAUK VILLAGE 41.45N 87.57W 02/01/2021 M13.4 INCH WILL IL COCORAHS COCORAHS STATION IL-WL-25 CRETE 3 E. 0700 AM HEAVY SNOW 3 SSE ST. JOHN 41.42N 87.44W 02/01/2021 M12.5 INCH LAKE IN COCORAHS COCORAHS STATION IN-LK-99 ST. JOHN 3 SSE. 0700 AM HEAVY SNOW 1 W PEOTONE 41.33N 87.80W 02/01/2021 M12.4 INCH WILL IL CO-OP OBSERVER CO-OP OBSERVER STATION PEOI2 PEOTONE. 0700 AM HEAVY SNOW 1 WNW DYER 41.51N 87.52W 02/01/2021 M12.1 INCH LAKE IN COCORAHS COCORAHS STATION IN-LK-15 DYER. 0700 AM HEAVY SNOW 1 ENE FOREST PARK 41.88N 87.80W 02/01/2021 M12.0 INCH COOK IL COCORAHS COCORAHS STATION IL-CK-61 FOREST PARK 1 ENE. 0700 AM HEAVY SNOW 1 NNE PARK FOREST 41.49N 87.68W 02/01/2021 M11.7 INCH COOK IL COCORAHS COCORAHS STATION IL-CK-69 PARK FOREST 1 NNE. 0700 AM HEAVY SNOW WEST RIDGE - CHICAGO 42.00N 87.70W 02/01/2021 M11.5 INCH COOK IL COCORAHS COCORAHS STATION IL-CK-94 CHICAGO - WEST RIDGE. 0700 AM HEAVY SNOW 1 NNW ROSELLE 41.99N 88.08W 02/01/2021 M11.4 INCH COOK IL COCORAHS COCORAHS STATION IL-CK-288 ROSELLE 1 NNW. 0700 AM HEAVY SNOW 1 NNW LINDENHURST 42.43N 88.03W 02/01/2021 M11.4 INCH LAKE IL COCORAHS COCORAHS STATION IL-LK-98 LINDENHURST 1 NNW. 0700 AM HEAVY SNOW 1 W MOKENA 41.53N 87.90W 02/01/2021 M11.4 INCH WILL IL COCORAHS COCORAHS STATION IL-WL-42 MOKENA 1 W. 0700 AM HEAVY SNOW 1 NE RIVERWOODS 42.17N 87.89W 02/01/2021 M11.2 INCH LAKE IL COCORAHS COCORAHS STATION IL-LK-39 RIVERWOODS 1 NE. 0700 AM HEAVY SNOW 1 SE GRANDWOOD PARK 42.38N 87.97W 02/01/2021 M11.2 INCH LAKE IL COCORAHS COCORAHS STATION IL-LK-42 GRANDWOOD PARK 1 SE. 0700 AM HEAVY SNOW HOMEWOOD 41.56N 87.66W 02/01/2021 M11.1 INCH COOK IL COCORAHS COCORAHS STATION IL-CK-64 HOMEWOOD. 0700 AM HEAVY SNOW 1 W GLEN ELLYN 41.88N 88.09W 02/01/2021 M11.0 INCH DUPAGE IL COCORAHS COCORAHS STATION IL-DP-132 GLEN ELLYN 1 W. 0700 AM HEAVY SNOW 2 WSW MOKENA 41.52N 87.92W 02/01/2021 M11.0 INCH WILL IL COCORAHS COCORAHS STATION IL-WL-97 MOKENA 2 WSW. 0700 AM HEAVY SNOW 2 SE LOCKPORT 41.57N 88.03W 02/01/2021 M11.0 INCH WILL IL COCORAHS COCORAHS STATION IL-WL-80 LOCKPORT 2 SE. 0700 AM HEAVY SNOW 2 S WOODRIDGE 41.73N 88.04W 02/01/2021 M10.5 INCH DUPAGE IL COCORAHS COCORAHS STATION IL-DP-102 BOLINGBROOK 3 NE. 0700 AM HEAVY SNOW 2 N BUFFALO GROVE 42.19N 87.96W 02/01/2021 M10.4 INCH LAKE IL COCORAHS COCORAHS STATION IL-LK-16 BUFFALO GROVE 2 N. 0700 AM HEAVY SNOW 4 SW PLAINFIELD 41.57N 88.27W 02/01/2021 M10.0 INCH KENDALL IL COCORAHS COCORAHS STATION IL-KD-34 PLAINFIELD 4 SW. 0700 AM HEAVY SNOW 1 SSW PARK RIDGE 42.00N 87.85W 02/01/2021 M9.8 INCH COOK IL COCORAHS COCORAHS STATION IL-CK-180 PARK RIDGE 1 SSW. 0700 AM HEAVY SNOW 1 WNW DEKALB 41.93N 88.77W 02/01/2021 M9.8 INCH DE KALB IL CO-OP OBSERVER CO-OP OBSERVER STATION DEKI2 DEKALB. 0700 AM HEAVY SNOW 1 WSW LISLE 41.79N 88.10W 02/01/2021 M9.5 INCH DUPAGE IL COCORAHS COCORAHS STATION IL-DP-30 LISLE 1 WSW. 0700 AM HEAVY SNOW 3 SSE WHEATFIELD 41.15N 87.04W 02/01/2021 M9.5 INCH JASPER IN COCORAHS COCORAHS STATION IN-JS-1 WHEATFIELD 3 SSE. 0700 AM HEAVY SNOW 1 NNW OAK FOREST 41.62N 87.75W 02/01/2021 M9.0 INCH COOK IL COCORAHS COCORAHS STATION IL-CK-306 OAK FOREST 1 NNW. 0700 AM HEAVY SNOW 2 WSW PALOS PARK 41.65N 87.86W 02/01/2021 M9.0 INCH COOK IL COCORAHS COCORAHS STATION IL-CK-50 PALOS PARK 2 WSW. 0700 AM HEAVY SNOW 1 N LISLE 41.81N 88.07W 02/01/2021 M9.0 INCH DUPAGE IL CO-OP OBSERVER CO-OP OBSERVER STATION WHTI2 MORTON ARBORETUM. 0700 AM HEAVY SNOW TROUT VALLEY 42.20N 88.25W 02/01/2021 M9.0 INCH MCHENRY IL COCORAHS COCORAHS STATION IL-MCH-95 TROUT VALLEY. 0700 AM HEAVY SNOW 4 NE FAIR OAKS 41.11N 87.20W 02/01/2021 M9.0 INCH JASPER IN COCORAHS COCORAHS STATION IN-JS-31 DE MOTTE 6 S. 0700 AM HEAVY SNOW 1 WSW CREST HILL 41.55N 88.13W 02/01/2021 M8.7 INCH WILL IL CO-OP OBSERVER CO-OP OBSERVER STATION JKJI2 JOLIET 2 N. 0700 AM HEAVY SNOW 1 SSW LA GRANGE PARK 41.82N 87.88W 02/01/2021 M8.5 INCH COOK IL COCORAHS COCORAHS STATION IL-CK-98 LA GRANGE PARK 1 SSW. 0700 AM HEAVY SNOW 1 NNW MONTGOMERY 41.75N 88.35W 02/01/2021 M8.5 INCH KANE IL CO-OP OBSERVER CO-OP OBSERVER STATION ARRI2 AURORA. 0700 AM HEAVY SNOW ST. ANNE 41.02N 87.72W 02/01/2021 M8.4 INCH KANKAKEE IL CO-OP OBSERVER CO-OP OBSERVER STATION SAAI2 ST. ANNE. 0700 AM HEAVY SNOW 1 W HOFFMAN ESTATES 42.05N 88.12W 02/01/2021 M8.3 INCH COOK IL COCORAHS COCORAHS STATION IL-CK-278 HOFFMAN ESTATES. 0700 AM HEAVY SNOW 2 WNW BOONE GROVE 41.37N 87.16W 02/01/2021 M8.3 INCH PORTER IN COCORAHS COCORAHS STATION IN-PT-18 BOONE GROVE 2 WNW. 0700 AM HEAVY SNOW 1 SW TIMBERLANE 42.32N 88.88W 02/01/2021 M8.0 INCH BOONE IL COCORAHS COCORAHS STATION IL-BN-19 TIMBERLANE 1 SW. 0700 AM HEAVY SNOW 1 SW ELMHURST 41.89N 87.95W 02/01/2021 M8.0 INCH DUPAGE IL COCORAHS COCORAHS STATION IL-DP-38 ELMHURST 1 SW. 0700 AM HEAVY SNOW 5 NW WOODSTOCK 42.36N 88.53W 02/01/2021 M7.9 INCH MCHENRY IL CO-OP OBSERVER CO-OP OBSERVER STATION WODI2 WOODSTOCK 5 NW. 0700 AM HEAVY SNOW 1 S SYCAMORE 41.98N 88.68W 02/01/2021 M7.8 INCH DE KALB IL COCORAHS COCORAHS STATION IL-DK-37 SYCAMORE. 0700 AM HEAVY SNOW 2 W BOURBONNAIS 41.17N 87.92W 02/01/2021 M7.8 INCH KANKAKEE IL CO-OP OBSERVER CO-OP OBSERVER STATION BOUI2 BOURBONNAIS. 0700 AM HEAVY SNOW CORTLAND 41.92N 88.69W 02/01/2021 M7.7 INCH DE KALB IL COCORAHS COCORAHS STATION IL-DK-5 CORTLAND. 0700 AM HEAVY SNOW 5 SSW NAPERVILLE 41.71N 88.17W 02/01/2021 M7.7 INCH WILL IL COCORAHS COCORAHS STATION IL-WL-92 NAPERVILLE 5 SSW. 0700 AM HEAVY SNOW 2 ENE LAKEWOOD 42.23N 88.35W 02/01/2021 M7.6 INCH MCHENRY IL COCORAHS COCORAHS STATION IL-MCH-83 CRYSTAL LAKE 1 WSW. 0700 AM HEAVY SNOW 1 NNE PALATINE 42.13N 88.03W 02/01/2021 M7.5 INCH COOK IL COCORAHS COCORAHS STATION IL-CK-294 PALATINE 1 NNE. 0700 AM HEAVY SNOW 4 ESE CHESTERTON 41.58N 86.99W 02/01/2021 M7.5 INCH PORTER IN COCORAHS COCORAHS STATION IN-PT-159 CHESTERTON 4 ESE. 0700 AM HEAVY SNOW 3 N CARBON HILL 41.34N 88.30W 02/01/2021 M7.4 INCH GRUNDY IL CO-OP OBSERVER CO-OP OBSERVER STATION CTYI2 COAL CITY 4 NNW. 0700 AM HEAVY SNOW 3 NNW LAKE STATION 41.62N 87.25W 02/01/2021 M7.4 INCH LAKE IN COCORAHS COCORAHS STATION IN-LK-63 GARY 5 ENE. 0700 AM HEAVY SNOW PORTER 41.62N 87.08W 02/01/2021 M7.2 INCH PORTER IN COCORAHS COCORAHS STATION IN-PT-69 PORTER. 0700 AM HEAVY SNOW 3 W ELGIN 42.04N 88.34W 02/01/2021 M7.1 INCH KANE IL COCORAHS COCORAHS STATION IL-KN-95 ELGIN 3 W. 0700 AM HEAVY SNOW 2 N ELGIN 42.06N 88.29W 02/01/2021 M7.0 INCH KANE IL CO-OP OBSERVER CO-OP OBSERVER STATION ELGI2 ELGIN. 0700 AM HEAVY SNOW 1 SSE DWIGHT 41.08N 88.42W 02/01/2021 M7.0 INCH LIVINGSTON IL CO-OP OBSERVER CO-OP OBSERVER STATION CWWI2 DWIGHT. 0700 AM HEAVY SNOW 1 WSW HARVARD 42.42N 88.63W 02/01/2021 M7.0 INCH MCHENRY IL CO-OP OBSERVER CO-OP OBSERVER STATION HVDI2 HARVARD. 0700 AM HEAVY SNOW 3 NNW CARBON HILL 41.33N 88.31W 02/01/2021 M6.9 INCH GRUNDY IL COCORAHS COCORAHS STATION IL-GY-16 CARBON HILL 3 NNW. 0700 AM HEAVY SNOW 6 E ASHKUM 40.88N 87.85W 02/01/2021 M6.8 INCH IROQUOIS IL COCORAHS COCORAHS STATION IL-IR-2 ASHKUM 6 E. 0700 AM HEAVY SNOW 3 NE DUPAGE AIRPORT 41.94N 88.20W 02/01/2021 M6.5 INCH DUPAGE IL COCORAHS COCORAHS STATION IL-DP-157 WEST CHICAGO 4 NNE. 0700 AM HEAVY SNOW 4 NNW PLAINFIELD 41.67N 88.23W 02/01/2021 M6.4 INCH WILL IL COCORAHS COCORAHS STATION IL-WL-148 PLAINFIELD 4 NNW. 0700 AM HEAVY SNOW 1 NNE BOULDER HILL 41.72N 88.33W 02/01/2021 M6.3 INCH KENDALL IL COCORAHS COCORAHS STATION IL-KD-5 BOULDER HILL 1 NNE. 0700 AM HEAVY SNOW 2 WNW LOVES PARK 42.32N 89.09W 02/01/2021 M6.3 INCH WINNEBAGO IL COCORAHS COCORAHS STATION IL-WN-48 4 NNW ROCKFORD. 0700 AM HEAVY SNOW 2 W HEBRON 42.47N 88.48W 02/01/2021 M6.1 INCH MCHENRY IL CO-OP OBSERVER CO-OP OBSERVER STATION HEBI2 HEBRON 2 WSW. 0700 AM HEAVY SNOW CAPRON 42.40N 88.74W 02/01/2021 M6.0 INCH BOONE IL COCORAHS COCORAHS STATION IL-BN-14 CAPRON. 0700 AM HEAVY SNOW 4 ESE AURORA 41.73N 88.24W 02/01/2021 M6.0 INCH DUPAGE IL COCORAHS COCORAHS STATION IL-DP-16 AURORA 4 ESE. 0700 AM SNOW 1 SSW GENEVA 41.87N 88.31W 02/01/2021 M5.2 INCH KANE IL COCORAHS COCORAHS STATION IL-KN-127 GENEVA. 0700 AM SNOW 2 WNW GENEVA 41.89N 88.33W 02/01/2021 M5.1 INCH KANE IL COCORAHS COCORAHS STATION IL-KN-121 GENEVA 2 WNW. 0700 AM SNOW 1 S FAIRBURY 40.73N 88.52W 02/01/2021 M3.2 INCH LIVINGSTON IL CO-OP OBSERVER CO-OP OBSERVER STATION FRBI2 FAIRBURY. 0700 AM SNOW 2 SSE STREATOR 41.10N 88.82W 02/01/2021 M2.7 INCH LIVINGSTON IL CO-OP OBSERVER CO-OP OBSERVER STATION STAI2 STREATOR. 0659 AM HEAVY SNOW 1 NNW DOWNERS GROVE 41.80N 88.02W 02/01/2021 M12.7 INCH DUPAGE IL COCORAHS COCORAHS STATION IL-DP-127 DOWNERS GROVE 1 NNW. 0645 AM HEAVY SNOW 1 N MEDINAH 42.00N 88.05W 02/01/2021 M9.1 INCH COOK IL COCORAHS COCORAHS STATION IL-CK-75 ELK GROVE VILLAGE 2 WSW. 0630 AM HEAVY SNOW 2 E CHESTERTON 41.61N 87.03W 02/01/2021 M6.8 INCH PORTER IN COCORAHS COCORAHS STATION IN-PT-110 CHESTERTON 2 E. 0615 AM HEAVY SNOW 1 NNW ALGONQUIN 42.17N 88.30W 02/01/2021 M11.1 INCH MCHENRY IL COCORAHS COCORAHS STATION IL-MCH-43 ALGONQUIN 1 NNW. 0600 AM HEAVY SNOW NWS CHICAGO-ROMEOVILLE 41.60N 88.09W 02/01/2021 M12.9 INCH WILL IL OFFICIAL NWS OBS STORM TOTAL SNOWFALL FOR THE JANUARY 30-31 EVENT. 0600 AM HEAVY SNOW HIGHWOOD 42.20N 87.81W 02/01/2021 M11.8 INCH LAKE IL COCORAHS COCORAHS STATION IL-LK-69 HIGHWOOD. 0600 AM HEAVY SNOW 1 NNE HOMER GLEN 41.61N 87.93W 02/01/2021 M11.5 INCH WILL IL COCORAHS COCORAHS STATION IL-WL-131 HOMER GLEN 1 NNE. 0600 AM HEAVY SNOW 1 NNW DEMOTTE 41.21N 87.21W 02/01/2021 M11.2 INCH JASPER IN COCORAHS COCORAHS STATION IN-JS-37 DEMOTTE. 0600 AM HEAVY SNOW 1 WSW ST. JOHN 41.45N 87.48W 02/01/2021 M11.2 INCH LAKE IN COCORAHS COCORAHS STATION IN-LK-46 ST. JOHN. 0600 AM HEAVY SNOW 1 WSW NAPERVILLE 41.77N 88.16W 02/01/2021 M10.0 INCH DUPAGE IL COCORAHS COCORAHS STATION IL-DP-156 NAPERVILLE. 0600 AM HEAVY SNOW 1 ESE ELK GROVE VILLAGE 42.00N 87.98W 02/01/2021 M9.5 INCH COOK IL COCORAHS COCORAHS STATION IL-CK-63 ELK GROVE VILLAGE 1 ESE. 0600 AM HEAVY SNOW COLLEGEVILLE 40.91N 87.16W 02/01/2021 M9.0 INCH JASPER IN COCORAHS COCORAHS STATION IN-JS-7 COLLEGEVILLE. 0600 AM HEAVY SNOW 4 NNE BOONE GROVE 41.41N 87.10W 02/01/2021 M9.0 INCH PORTER IN COCORAHS COCORAHS STATION IN-PT-117 BOONE GROVE 4 NNE. 0600 AM HEAVY SNOW OGDEN DUNES 41.62N 87.20W 02/01/2021 M7.6 INCH PORTER IN COCORAHS COCORAHS STATION IN-PT-157 OGDEN DUNES. 0600 AM HEAVY SNOW BATAVIA 41.85N 88.31W 02/01/2021 M6.3 INCH KANE IL CO-OP OBSERVER CO-OP OBSERVER STATION BATI2 BATAVIA. 0600 AM HEAVY SNOW 4 SW VALPARAISO 41.43N 87.11W 02/01/2021 M6.1 INCH PORTER IN COCORAHS COCORAHS STATION IN-PT-12 VALPARAISO 4 SW. 0600 AM SNOW 2 N CRESCENT CITY 40.80N 87.86W 02/01/2021 M4.3 INCH IROQUOIS IL COCORAHS COCORAHS STATION IL-IR-14 CRESCENT CITY 2 N. 0600 AM SNOW 3 S EARLVILLE 41.55N 88.91W 02/01/2021 M4.2 INCH LA SALLE IL CO-OP OBSERVER CO-OP OBSERVER STATION ERVI2 EARLVILLE 3 S. 0553 AM HEAVY SNOW 1 N VALPARAISO 41.49N 87.06W 02/01/2021 M8.4 INCH PORTER IN COCORAHS COCORAHS STATION IN-PT-98 VALPARAISO 1 N. 0500 AM HEAVY SNOW 2 NE SOMONAUK 41.65N 88.66W 02/01/2021 M10.0 INCH DE KALB IL COCORAHS COCORAHS STATION IL-DK-24 SOMONAUK 2 NE. 0500 AM HEAVY SNOW 1 ENE COUNTRYSIDE 41.78N 87.86W 02/01/2021 M9.5 INCH COOK IL COCORAHS COCORAHS STATION IL-CK-88 COUNTRYSIDE 1 ENE. 0315 AM HEAVY SNOW 1 E PALATINE 42.11N 88.02W 02/01/2021 M8.2 INCH COOK IL COCORAHS COCORAHS STATION IL-CK-121 PALATINE 1 E. 1200 AM HEAVY SNOW BERWYN 41.84N 87.79W 02/01/2021 M12.0 INCH COOK IL PUBLIC 1200 AM HEAVY SNOW MOKENA 41.53N 87.88W 02/01/2021 M11.4 INCH WILL IL TRAINED SPOTTER 1200 AM HEAVY SNOW 3 SW MIDWAY 41.73N 87.77W 02/01/2021 M11.3 INCH COOK IL CO-OP OBSERVER STORM TOTAL FOR JANUARY 30-31 EVENT. 1200 AM HEAVY SNOW LANSING 41.57N 87.54W 02/01/2021 M11.0 INCH COOK IL CO-OP OBSERVER 1200 AM HEAVY SNOW OHARE AIRPORT 41.98N 87.90W 02/01/2021 M10.8 INCH COOK IL OFFICIAL NWS OBS RE-TRANSMISSION FOR NOHRSC ANALYSIS. STORM TOTAL SNOWFALL FOR JAN. 30-31 EVENT. ON. JAN. 30, 4.5 INCHES TOTAL FELL. ON JAN. 31, 2.3 INCHES FELL BETWEEN 12 AM AND 6 AM, 2.0 INCHES BETWEEN 6 AM AND 12 PM, 1.7 INCHES BETWEEN 12 PM AND 6 PM, AND 0.3 INCHES BETWEEN 6 PM AND 12 AM, BRINGING DAILY TOTAL TO 6.3 INCHES. SNOW DEPTH OF 15 INCHES AT MIDNIGHT OBSERVATION. 1200 AM HEAVY SNOW ROCKFORD AIRPORT 42.20N 89.10W 02/01/2021 M6.8 INCH WINNEBAGO IL OFFICIAL NWS OBS STORM TOTAL SNOWFALL FOR JAN. 30-31 EVENT. A TRACE OF SNOW WAS REPORTED BETWEEN 6 PM AND. 1100 PM HEAVY SNOW THORNTON 41.57N 87.62W 01/31/2021 M12.7 INCH COOK IL PUBLIC 1000 PM HEAVY SNOW MORGAN PARK - CHICAGO 41.69N 87.67W 01/31/2021 M11.0 INCH COOK IL PUBLIC REPORTED AT MORGAN PARK, IL. 0930 PM HEAVY SNOW ANTIOCH 42.48N 88.10W 01/31/2021 M9.8 INCH LAKE IL PUBLIC 0900 PM HEAVY SNOW LIBERTYVILLE 42.28N 87.95W 01/31/2021 M10.5 INCH LAKE IL TRAINED SPOTTER 0830 PM HEAVY SNOW KENTLAND 40.77N 87.44W 01/31/2021 M9.5 INCH NEWTON IN PUBLIC STORM TOTAL 9.5 INCHES, RELAYED VIA BROADCAST MEDIA. 0830 PM SNOW GILMAN 40.77N 87.99W 01/31/2021 M2.0 INCH IROQUOIS IL PUBLIC 0830 PM SNOW GIBSON CITY 40.47N 88.38W 01/31/2021 M1.5 INCH FORD IL PUBLIC 0830 PM SNOW MILFORD 40.64N 87.70W 01/31/2021 M1.5 INCH IROQUOIS IL PUBLIC 0800 PM HEAVY SNOW DYER 41.50N 87.51W 01/31/2021 M10.5 INCH LAKE IN PUBLIC 0800 PM HEAVY SNOW 1 ENE CHICAGO LOOP 41.88N 87.62W 01/31/2021 M8.6 INCH COOK IL BROADCAST MEDIA UPDATED STORM TOTAL SNOW THROUGH 8PM FOR THE DOWNTOWN LOOP/MILLENNIUM PARK AREA. 0740 PM HEAVY SNOW LAKE SUMMERSET 42.45N 89.40W 01/31/2021 M7.8 INCH WINNEBAGO IL PUBLIC STORM TOTAL SNOW. RELAYED VIA BROADCAST MEDIA. 0730 PM HEAVY SNOW MORTON GROVE 42.04N 87.78W 01/31/2021 M12.1 INCH COOK IL BROADCAST MEDIA STORM TOTAL 12.1 INCHES. 0709 PM HEAVY SNOW FLOSSMOOR 41.54N 87.68W 01/31/2021 M11.5 INCH COOK IL TRAINED SPOTTER STORM TOTAL SNOW. RELAYED VIA SOCIAL MEDIA. 0655 PM HEAVY SNOW PEOTONE 41.33N 87.79W 01/31/2021 M12.7 INCH WILL IL TRAINED SPOTTER STORM TOTAL 12.7 INCHES. 0650 PM HEAVY SNOW KOUTS 41.32N 87.03W 01/31/2021 M9.0 INCH PORTER IN PUBLIC STORM TOTAL SNOW. RELAYED VIA SOCIAL MEDIA. 0530 PM HEAVY SNOW PECATONICA 42.31N 89.36W 01/31/2021 M7.0 INCH WINNEBAGO IL PUBLIC STORM TOTAL SNOW. RELAYED VIA BROADCAST MEDIA. 0526 PM HEAVY SNOW NEW MILFORD 42.17N 89.07W 01/31/2021 M7.0 INCH WINNEBAGO IL PUBLIC STORM TOTAL SNOW. RELAYED VIA BROADCAST MEDIA. 0526 PM HEAVY SNOW SOUTH BELOIT 42.49N 89.04W 01/31/2021 M6.5 INCH WINNEBAGO IL PUBLIC STORM TOTAL SNOW. RELAYED VIA BROADCAST MEDIA. 0526 PM HEAVY SNOW 2 SW ROCKFORD 42.25N 89.13W 01/31/2021 M6.0 INCH WINNEBAGO IL PUBLIC STORM TOTAL SNOW. RELAYED VIA BROADCAST MEDIA. 0520 PM HEAVY SNOW 2 N HOMER GLEN 41.63N 87.94W 01/31/2021 M11.0 INCH WILL IL PUBLIC STORM TOTAL SNOW. RELAYED VIA SOCIAL MEDIA. 0519 PM HEAVY SNOW 1 ENE ST. CHARLES 41.92N 88.30W 01/31/2021 M8.4 INCH KANE IL TRAINED SPOTTER STORM TOTAL 8.4 INCHES. SNOW DEPTH OF 12 INCHES. 0515 PM HEAVY SNOW OAK LAWN 41.72N 87.75W 01/31/2021 M10.5 INCH COOK IL PUBLIC STORM TOTAL SNOW. RELAYED VIA SOCIAL MEDIA. 0500 PM HEAVY SNOW DEERFIELD 42.17N 87.84W 01/31/2021 M12.0 INCH LAKE IL PUBLIC STORM TOTAL SNOW. RELAYED VIA SOCIAL MEDIA. 0500 PM HEAVY SNOW JOLIET 41.53N 88.08W 01/31/2021 M10.7 INCH WILL IL TRAINED SPOTTER STORM TOTAL SNOW. RELAYED VIA SOCIAL MEDIA. 0457 PM SNOW 1 NW LOWELL 41.30N 87.44W 01/31/2021 M10.6 INCH LAKE IN PUBLIC 0430 PM HEAVY SNOW 1 E MANHATTAN 41.43N 87.96W 01/31/2021 M11.0 INCH WILL IL PUBLIC 0415 PM HEAVY SNOW 1 WNW WOODRIDGE 41.76N 88.07W 01/31/2021 M10.5 INCH DUPAGE IL NWS EMPLOYEE STORM TOTAL 10.5 INCHES. 0340 PM HEAVY SNOW LEMONT 41.67N 88.00W 01/31/2021 M9.5 INCH COOK IL EMERGENCY MNGR STORM TOTAL 9.5 INCHES AT LEMONT EOC. && $$
High Snow Depths
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| Midwest Snow Depth on February 1 |
At the end of this event, snow depths across a large part of the area that had the heaviest snow were 10-15+".
Additional
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| Satellite water vapor imagery of the storm system on the night of January 30 |
Links
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Media use of NWS Web News Stories is encouraged! Additional recaps can be found on the NWS Chicago Science & Past Events Page. |
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