Thunderstorms and a chance for some isolated flash flooding will continue today in the Southwest U.S. before an influx of tropical moisture from Priscilla brings widespread heavy rainfall and a flash flooding threat late this week into this weekend. A coastal storm may develop off the southeast U.S. coast Friday night and drift north just off the Mid-Atlantic coast through the weekend. 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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