A weather system in the Pacific Northwest will produce rain throughout the day, before a potent atmospheric river produces a prolonged round of heavy rainfall, widespread urban and river flooding, and high elevation snow to the region Monday through Wednesday. Showers and thunderstorms may produce isolated damaging winds, a brief tornado, and locally heavy rainfall across parts of Florida today. Read More >
Overview
Fast Facts
Event Snow Totals
PUBLIC INFORMATION STATEMENT
NATIONAL WEATHER SERVICE CHICAGO/ROMEOVILLE IL
1122 AM CST MON DEC 12 2016
...2-DAY SNOWFALL ROUND-UP...
THE FOLLOWING ARE SNOW AMOUNTS FOR THE PREVIOUS 2 DAYS
AS MEASURED IN THE MORNING BY NWS COOPERATIVE OBSERVERS
AND COCORAHS OBSERVERS. OBSERVATIONS ARE USUALLY
TAKEN AT 7 AM.
2-DAY SNOW TOTALS FOR MONDAY (12/12/16)
AS OF 11:22 AM CST
ILLINOIS 2-DAY SNOW FALL
LOCATION (COUNTY): AMT(IN) REPORTS
HARVARD 3SSE (MCHENRY).......................11.7 (2)
BULL VALLEY 2WNW (MCHENRY)...................10.8 (2)
HARVARD (MCHENRY).............................9.5 (2)
RIVERWOODS (LAKE).............................9.3 (2)
LAKE ZURICH (LAKE)............................9.1 (2)
HIGHWOOD 1S (LAKE)............................9.0 (2)
GENOA (DE KALB)...............................8.8 (2)
WOODSTOCK 5NW (MCHENRY).......................8.7 (2)
WOODSTOCK 4SW (MCHENRY).......................8.5 (2)
WONDER LAKE 1WNW (MCHENRY)....................8.1 (2)
SCHAUMBURG 2E (COOK)..........................8.1 (2)
DOWNERS GROVE 0.4NNE (DU PAGE)...............11.7 (3)
ST. CHARLES (KANE)............................8.0 (2)
WAUKEGAN 2N (LAKE)............................7.9 (2)
ELK GROVE VILLAGE 1ESE (COOK).................7.9 (2)
OHARE (COOK)..................................7.8 (2)
LAKE VILLA 1SSW (LAKE)........................7.8 (2)
BEACH PARK 1W (LAKE)..........................7.8 (2)
ELGIN 2W (KANE)...............................7.8 (2)
HOFFMAN ESTATES 5W (COOK).....................7.8 (2)
ROSCOE 2SE (WINNEBAGO)........................7.7 (2)
ROSCOE 2ESE (WINNEBAGO).......................7.7 (2)
LAKE VILLA 2WSW (LAKE)........................7.7 (2)
BARRINGTON (LAKE).............................7.7 (2)
FOX LAKE 2SE (LAKE)...........................7.7 (2)
ELK GROVE VILLAGE 2WSW (COOK).................7.7 (2)
PARK FOREST (COOK)............................7.5 (2)
BUFFALO GROVE 2N (LAKE).......................7.5 (2)
LINCOLNSHIRE 1N (LAKE)........................7.5 (2)
GENEVA 4WSW (KANE)............................7.5 (2)
BOTANIC GARDENS (COOK)........................7.5 (2)
WILLOW SPRINGS (COOK).........................7.4 (2)
MUNDELEIN 2WNW (LAKE).........................7.4 (2)
GENEVA 1SSW (KANE)............................7.3 (2)
MUNDELEIN (LAKE)..............................7.2 (2)
MIDWAY COOP (COOK)............................7.0 (2)
ROCKFORD 1NW (WINNEBAGO)......................7.0 (2)
BATAVIA 1WSW (KANE)...........................7.0 (2)
ROSELLE 1ESE (DU PAGE)........................7.0 (2)
PARK RIDGE 1WNW (COOK)........................7.0 (2)
BATAVIA 2WNW (KANE)...........................6.9 (2)
MCHENRY (MCHENRY).............................6.7 (2)
PALATINE 1E (COOK)............................6.7 (2)
ELMHURST 1ESE (DU PAGE).......................6.7 (2)
ROCKFORD 2ENE (WINNEBAGO).....................6.5 (2)
NAPERVILLE 1NW (DU PAGE)......................6.5 (2)
OAK PARK 2S (COOK)............................6.5 (2)
PARK RIDGE (COOK).............................6.4 (2)
ROCKFORD (WINNEBAGO)..........................6.3 (2)
LISLE 1SE (DU PAGE)...........................6.3 (2)
LINCOLNWOOD 2E (COOK).........................6.2 (2)
MONEE (WILL)..................................6.1 (2)
CRETE 3E (WILL)...............................6.1 (2)
BATAVIA (KANE)................................6.1 (2)
BYRON 3N (OGLE)...............................6.0 (2)
NORTH AURORA 2NE (KANE).......................6.0 (2)
ELBURN (KANE).................................6.0 (2)
OAK LAWN 2WNW (COOK)..........................6.0 (2)
ELBURN (KANE).................................6.0 (2)
AMBOY (LEE)...................................6.0 (2)
SUGAR GROVE 1NE (KANE)........................5.9 (2)
LISLE (DU PAGE)...............................5.9 (2)
PEOTONE (WILL)................................5.8 (2)
LA GRANGE PARK 1SSW (COOK)....................5.8 (2)
ROMEOVILLE (WILL).............................5.6 (2)
DE KALB (DE KALB).............................5.6 (2)
ROGERS PARK 2SW (COOK)........................5.6 (2)
NEW LENOX 2SE (WILL)..........................5.5 (2)
ST. CHARLES 6NW (KANE)........................5.5 (2)
ELGIN 1S (KANE)...............................5.5 (2)
NAPERVILLE 2SE (DU PAGE)......................5.5 (2)
SOMONAUK 2NE (DE KALB)........................5.5 (2)
LINCOLNWOOD 3E (COOK).........................5.5 (2)
CHICAGO RIDGE (COOK)..........................5.5 (2)
CHICAGO 6ESE (COOK)...........................5.5 (2)
ELGIN (KANE)..................................5.5 (2)
CAPRON (BOONE)................................5.4 (2)
BURR RIDGE 2SW (DU PAGE)......................5.3 (2)
LANSING (COOK)................................5.2 (2)
PARK FOREST 1SW (COOK)........................5.2 (2)
HOMER GLEN 1ENE (WILL)........................5.1 (2)
BOLINGBROOK 3NE (DU PAGE).....................5.1 (2)
JOLIET LOCK/DAM (WILL)........................5.0 (2)
DE KALB (DE KALB).............................5.0 (2)
MANHATTAN (WILL)..............................4.9 (2)
MANHATTAN 5ENE (WILL).........................4.9 (2)
PLAINFIELD 5SW (KENDALL)......................4.9 (2)
CORTLAND (DE KALB)............................4.9 (2)
PALOS PARK 1SW (COOK).........................4.9 (2)
WORTH (COOK)..................................4.9 (2)
YORKVILLE 2SE (KENDALL).......................4.8 (2)
OAK LAWN (COOK)...............................4.7 (2)
NAPERVILLE 4SSW (WILL)........................4.7 (2)
LISLE MORTON ARB (DU PAGE)....................4.6 (2)
NEW LENOX 3E (WILL)...........................4.5 (2)
LOCKPORT 1SE (WILL)...........................4.5 (2)
GURNEE 2W (LAKE)..............................4.5 (1)
LAKE FOREST 2NNE (LAKE).......................4.5 (1)
PLAINFIELD (WILL).............................4.4 (2)
MOKENA 1W (WILL)..............................4.4 (2)
HOMEWOOD (COOK)...............................4.4 (2)
WILMINGTON 3SE (WILL).........................4.3 (2)
JOLIET 2N (WILL)..............................4.2 (2)
NEW LENOX 4SE (WILL)..........................4.2 (2)
MONTGOMERY 1SSE (KENDALL).....................4.0 (2)
EARLVILLE 3S (LA SALLE).......................4.0 (2)
DIXON (LEE)...................................4.0 (2)
STEWARD (LEE).................................3.9 (2)
ASHTON (LEE)..................................3.9 (2)
MANHATTAN 2SE (WILL)..........................3.8 (2)
OTTAWA 2N (LA SALLE)..........................3.8 (2)
PLAINFIELD 2SSE (WILL)........................3.6 (2)
OTTAWA 1NW (LA SALLE).........................3.5 (2)
DIXON 2SW (LEE)...............................3.5 (2)
MOMENCE (KANKAKEE)............................3.2 (2)
LA SALLE (LA SALLE)...........................3.2 (2)
CARBON HILL 3.1N (GRUNDY).....................3.2 (2)
COAL CITY 4NNW (GRUNDY).......................3.2 (2)
ST ANNE (KANKAKEE)............................3.0 (2)
MAZON 0.5ENE (GRUNDY).........................3.0 (2)
BOURBONNAIS (KANKAKEE)........................3.0 (2)
MORRIS 6ESE (GRUNDY)..........................2.9 (2)
OTTAWA (LA SALLE).............................2.7 (2)
MINOOKA (GRUNDY)..............................2.6 (2)
PAW PAW (LEE).................................2.5 (2)
MORRIS (GRUNDY)...............................2.5 (2)
BONFIELD 4WSW (KANKAKEE)......................2.5 (2)
ASHKUM 5.6E (IROQUOIS)........................2.4 (2)
STREATOR 4ENE (LA SALLE)......................2.0 (2)
WATSEKA 6.9WNW (IROQUOIS).....................2.0 (2)
MARSEILLES (LA SALLE).........................1.9 (2)
CHATSWORTH (LIVINGSTON).......................1.0 (2)
DWIGHT (LIVINGSTON)...........................1.0 (2)
CHATSWORTH (LIVINGSTON).......................1.0 (2)
INDIANA 2-DAY SNOW FALL
LOCATION (COUNTY): AMT(IN) REPORTS
CHESTERTON 4E (PORTER)........................7.5 (2)
CROWN POINT (LAKE)............................7.2 (2)
(KB9F)VALPARAISO 4S (PORTER)..................7.0 (2)
(W9MAL)MERRILLVILLE 2NNW (LAKE)...............7.0 (2)
VALPARAISO 6WSW (PORTER)......................6.6 (2)
LAKES OF THE FOUR SEASONS 2NNE (PORTER).......6.6 (2)
CROWN POINT 1N (LAKE).........................6.6 (2)
DE MOTTE 1NNW (JASPER)........................6.5 (2)
PORTAGE 3E (PORTER)...........................6.0 (2)
HEBRON 4NE (PORTER)...........................6.0 (2)
PORTER 1S (PORTER)............................5.9 (2)
VALPARAISO 6SSW (PORTER)......................5.5 (2)
DE MOTTE 4SW (JASPER).........................5.5 (2)
VALPARAISO 1SE (PORTER).......................5.3 (2)
REMINGTON (JASPER)............................5.2 (2)
VALPARAISO 4SW (PORTER).......................5.0 (2)
DE MOTTE 6S (JASPER)..........................4.5 (2)
DYER 1WNW (LAKE)..............................4.0 (2)
REMINGTON (JASPER)............................4.0 (2)
RENSSELAER (JASPER)...........................3.1 (2)
MOROCCO (NEWTON)..............................3.0 (2)
CROWN POINT 2WSW (LAKE).......................3.0 (2)
MOUNT AYR 2NNE (NEWTON).......................2.6 (2)
$$
Storm Reports
344
NWUS53 KLOT 071842
LSRLOT
Preliminary Local Storm Report...Summary
National Weather Service Chicago IL
1242 PM CST Sun Dec 7 2025
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
0700 AM Snow 1 W Sleepy Hollow 42.09N 88.33W
12/07/2025 M7.1 Inch Kane IL Cocorahs
Cocorahs station IL-KN-118 Sleepy Hollow 1
W.
0700 AM Snow Capron 42.40N 88.74W
12/07/2025 M7.0 Inch Boone IL Cocorahs
Cocorahs station IL-BN-14 Capron.
0700 AM Snow 1 SW Timberlane 42.32N 88.88W
12/07/2025 M7.0 Inch Boone IL Cocorahs
Cocorahs station IL-BN-19 Timberlane 1 SW.
0737 AM Snow Oregon 42.01N 89.33W
12/07/2025 M7.0 Inch Ogle IL Public
Storm total snow as of 7:37 AM. Relayed via
broadcast media.
0830 AM Snow Lindenhurst 42.41N 88.03W
12/07/2025 M7.0 Inch Lake IL Broadcast Media
Storm total snowfall.
0930 AM Snow 1 SSE Greenwood 42.39N 88.39W
12/07/2025 M6.9 Inch McHenry IL Public
Storm total snowfall.
0700 AM Snow 2 WNW Loves Park 42.32N 89.09W
12/07/2025 M6.8 Inch Winnebago IL Cocorahs
Cocorahs station IL-WN-48 4 NNW Rockford.
0700 AM Snow 3 W Elgin 42.04N 88.34W
12/07/2025 M6.6 Inch Kane IL Cocorahs
Cocorahs station IL-KN-95 Elgin 3 W.
0700 AM Snow 5 NW Woodstock 42.36N 88.53W
12/07/2025 M6.6 Inch McHenry IL CO-OP Observer
CO-OP Observer station WODI2 Woodstock 5 NW.
0800 AM Snow Long Lake 42.37N 88.12W
12/07/2025 M6.5 Inch Lake IL Cocorahs
Cocorahs station IL-LK-100 Long Lake.
0915 AM Snow 3 NW Streamwood 42.05N 88.22W
12/07/2025 M6.5 Inch Cook IL Cocorahs
Cocorahs station IL-CK-456 Streamwood 3 NW.
0700 AM Snow 1 W Hoffman Estates 42.05N 88.12W
12/07/2025 M6.4 Inch Cook IL Cocorahs
Cocorahs station IL-CK-278 Hoffman Estates.
0700 AM Snow 3 NNE Campton Hills 41.98N 88.38W
12/07/2025 M6.4 Inch Kane IL Cocorahs
Cocorahs station IL-KN-67 Campton Hills 3
NNE.
0700 AM Snow 4 E Pecatonica 42.31N 89.29W
12/07/2025 M6.4 Inch Winnebago IL Cocorahs
Cocorahs station IL-WN-56 Winnebago 3.6 NW.
0653 AM Snow New Milford 42.17N 89.07W
12/07/2025 M6.2 Inch Winnebago IL Public
Snow total as of 6:53 AM. Relayed via
broadcast media.
0700 AM Snow 4 NNE Harvard 42.48N 88.58W
12/07/2025 M6.2 Inch McHenry IL Cocorahs
Cocorahs station IL-MCH-103 Harvard 4.4 NNE.
0800 AM Snow 2 WNW Bull Valley 42.32N 88.39W
12/07/2025 M6.2 Inch McHenry IL Cocorahs
Cocorahs station IL-MCH-13 Bull Valley 2
WNW.
1018 AM Snow 1 E Glenview 42.08N 87.80W
12/07/2025 M6.2 Inch Cook IL Public
Storm total snowfall.
0603 AM Snow 4 N Cherry Valley 42.29N 88.97W
12/07/2025 M6.1 Inch Winnebago IL Public
0700 AM Snow 2 E Schaumburg 42.03N 88.04W
12/07/2025 M6.1 Inch Cook IL Cocorahs
Cocorahs station IL-CK-131 Schaumburg 2 E.
0711 AM Snow 3 SSE Harvard 42.38N 88.59W
12/07/2025 M6.1 Inch McHenry IL Cocorahs
Cocorahs station IL-MCH-66 Harvard 3 SSE.
0652 AM Snow 1 NW Genoa 42.11N 88.72W
12/07/2025 E6.0 Inch De Kalb IL Public
0730 AM Snow Mount Prospect 42.07N 87.94W
12/07/2025 M6.0 Inch Cook IL Cocorahs
Cocorahs station IL-CK-367 Mount Prospect
0.2 NNE.
0737 AM Snow Leaf River 42.13N 89.40W
12/07/2025 M6.0 Inch Ogle IL Public
Storm total snow as of 7:37 AM. Relayed via
broadcast media.
0812 AM Snow 6 NNW West Brooklyn 41.78N 89.17W
12/07/2025 M6.0 Inch Lee IL Public
Storm total snowfall. Relayed via broadcast
media.
0830 AM Snow Wadsworth 42.43N 87.92W
12/07/2025 M6.0 Inch Lake IL Broadcast Media
Storm total snowfall.
0926 AM Snow Evanston 42.04N 87.69W
12/07/2025 M6.0 Inch Cook IL Public
1030 AM Snow 1 S Woodstock 42.30N 88.45W
12/07/2025 M6.0 Inch McHenry IL Public
Storm total snowfall.
0700 AM Snow Grandwood Park 42.39N 87.99W
12/07/2025 M5.9 Inch Lake IL Cocorahs
Cocorahs station IL-LK-133 Grandwood Park.
0830 AM Snow 4 SE Chana 41.93N 89.16W
12/07/2025 M5.9 Inch Ogle IL Cocorahs
Cocorahs station IL-OG-16 Chana 4 SE.
0945 AM Snow 2 SW Union 42.20N 88.56W
12/07/2025 M5.9 Inch McHenry IL Public
0700 AM Snow 1 ESE Elk Grove Village 42.00N 87.98W
12/07/2025 M5.8 Inch Cook IL Cocorahs
Cocorahs station IL-CK-63 Elk Grove Village
1 ESE.
0700 AM Snow 1 NE Riverwoods 42.17N 87.89W
12/07/2025 M5.8 Inch Lake IL Cocorahs
Cocorahs station IL-LK-39 Riverwoods 1 NE.
0700 AM Snow 1 SE Grandwood Park 42.38N 87.97W
12/07/2025 M5.8 Inch Lake IL Cocorahs
Cocorahs station IL-LK-42 Grandwood Park 1
SE.
0700 AM Snow Highwood 42.20N 87.81W
12/07/2025 M5.8 Inch Lake IL Cocorahs
Cocorahs station IL-LK-69 Highwood.
0754 AM Snow 1 NNE Mundelein 42.27N 88.00W
12/07/2025 M5.8 Inch Lake IL Cocorahs
Cocorahs station IL-LK-54 Mundelein 1 NNE.
0800 AM Snow Winthrop Harbor 42.48N 87.83W
12/07/2025 M5.8 Inch Lake IL Cocorahs
Cocorahs station IL-LK-23 Winthrop Harbor.
0814 AM Snow Highwood 42.20N 87.81W
12/07/2025 M5.8 Inch Lake IL Public
1000 AM Snow Sycamore 41.99N 88.69W
12/07/2025 M5.8 Inch De Kalb IL Public
Storm total snowfall.
1200 PM Snow Rockford Airport 42.20N 89.10W
12/07/2025 M5.8 Inch Winnebago IL Official NWS Obs
Storm total snowfall. From 6 AM to 12 PM
snow observed was 0.1 inches.
0900 AM Snow 1 ENE McHenry 42.35N 88.25W
12/07/2025 M5.7 Inch McHenry IL Cocorahs
Cocorahs station IL-MCH-94 McHenry 1 ENE.
0700 AM Snow 4 SSW Woodstock 42.26N 88.46W
12/07/2025 M5.6 Inch McHenry IL CO-OP Observer
CO-OP Observer station CRYI2 Crystal Lake 4
NW.
0700 AM Snow 3 NNW Lakewood 42.26N 88.40W
12/07/2025 M5.6 Inch McHenry IL Cocorahs
Cocorahs station IL-MCH-107 Crystal Lake 3.9
WNW.
0600 AM Snow 1 NW Trout Valley 42.21N 88.27W
12/07/2025 M5.5 Inch McHenry IL Cocorahs
Cocorahs station IL-MCH-118 Cary 0.9 W.
0700 AM Snow 1 NW Palatine 42.13N 88.06W
12/07/2025 M5.5 Inch Cook IL Cocorahs
Cocorahs station IL-CK-346 Palatine 1.2 NW.
0700 AM Snow 2 N Elgin 42.06N 88.29W
12/07/2025 M5.5 Inch Kane IL CO-OP Observer
CO-OP Observer station ELGI2 Elgin.
0700 AM Snow 1 N Lake Zurich 42.21N 88.09W
12/07/2025 M5.5 Inch Lake IL Cocorahs
Cocorahs station IL-LK-87 Lake Zurich 1 N.
0700 AM Snow 1 SSW Forest Lake 42.19N 88.07W
12/07/2025 M5.5 Inch Lake IL CO-OP Observer
CO-OP Observer station LKZI2 Forest Lake 1
SSW.
1030 AM Snow DeKalb 41.93N 88.75W
12/07/2025 M5.5 Inch De Kalb IL Public
Storm total snowfall.
0700 AM Snow 2 N Buffalo Grove 42.19N 87.96W
12/07/2025 M5.4 Inch Lake IL Cocorahs
Cocorahs station IL-LK-16 Buffalo Grove 2 N.
0730 AM Snow 2 S Mount Prospect 42.04N 87.93W
12/07/2025 M5.4 Inch Cook IL Public
0730 AM Snow 2 WNW Mundelein 42.27N 88.03W
12/07/2025 M5.4 Inch Lake IL Cocorahs
Cocorahs station IL-LK-74 Mundelein 1.6 WNW.
0700 AM Snow 1 SSW Genoa 42.08N 88.71W
12/07/2025 M5.3 Inch De Kalb IL CO-OP Observer
CO-OP Observer station GEOI2 Genoa.
0916 AM Snow Wauconda 42.26N 88.14W
12/07/2025 M5.3 Inch Lake IL Emergency Mngr
Storm total snowfall.
0930 AM Snow 1 WSW Loves Park 42.31N 89.07W
12/07/2025 M5.3 Inch Winnebago IL Broadcast Media
Storm total snowfall.
1017 AM Snow 2 NE Long Grove 42.20N 87.97W
12/07/2025 M5.3 Inch Lake IL Public
Storm total snow.
0700 AM Snow Trout Valley 42.20N 88.25W
12/07/2025 M5.2 Inch McHenry IL Cocorahs
Cocorahs station IL-MCH-95 Trout Valley.
0735 AM Snow 1 N Medinah 42.00N 88.05W
12/07/2025 M5.2 Inch Cook IL Cocorahs
Cocorahs station IL-CK-75 Elk Grove Village
2 WSW.
0630 AM Snow 1 NNE Oak Park 41.91N 87.78W
12/07/2025 M5.0 Inch Cook IL Cocorahs
Cocorahs station IL-CK-74 Oak Park 1 NNE.
0700 AM Snow West Ridge - Chicago 42.00N 87.69W
12/07/2025 M5.0 Inch Cook IL Cocorahs
Cocorahs station IL-CK-214 Chicago - West
Ridge.
0700 AM Snow 1 NNE Palatine 42.13N 88.03W
12/07/2025 M5.0 Inch Cook IL Cocorahs
Cocorahs station IL-CK-294 Palatine 1 NNE.
0700 AM Snow Batavia 41.85N 88.32W
12/07/2025 M5.0 Inch Kane IL Cocorahs
Cocorahs station IL-KN-135 Batavia.
0715 AM Snow 1 SW DeKalb 41.92N 88.76W
12/07/2025 M5.0 Inch De Kalb IL Cocorahs
Cocorahs station IL-DK-28 DeKalb.
0730 AM Snow 1 E Palatine 42.11N 88.02W
12/07/2025 M5.0 Inch Cook IL Cocorahs
Cocorahs station IL-CK-121 Palatine 1 E.
0730 AM Snow 1 W Glen Ellyn 41.88N 88.09W
12/07/2025 M5.0 Inch DuPage IL Cocorahs
Cocorahs station IL-DP-132 Glen Ellyn 1 W.
0730 AM Snow Maple Park 41.91N 88.59W
12/07/2025 M5.0 Inch Kane IL Cocorahs
Cocorahs station IL-KN-125 Maple Park.
0738 AM Snow 3 NW Carol Stream 41.95N 88.16W
12/07/2025 M5.0 Inch DuPage IL Public
0800 AM Snow 2 SSE Barrington Hills 42.12N 88.16W
12/07/2025 M5.0 Inch Cook IL CO-OP Observer
CO-OP Observer station BARI2 Barrington.
0800 AM Snow 1 ENE St. Charles 41.92N 88.30W
12/07/2025 M5.0 Inch Kane IL Cocorahs
Cocorahs station IL-KN-64 St. Charles 1 ENE.
0830 AM Snow 1 WSW Medinah 41.97N 88.07W
12/07/2025 M5.0 Inch DuPage IL Cocorahs
Cocorahs station IL-DP-190 Bloomingdale.
0920 AM Snow 1 S Jefferson Park - Ch 41.97N 87.77W
12/07/2025 M5.0 Inch Cook IL Public
1000 AM Snow Hanover Park 42.00N 88.15W
12/07/2025 M5.0 Inch Cook IL Public
Storm total snowfall.
1010 AM Snow Crystal Lake 42.24N 88.32W
12/07/2025 M5.0 Inch McHenry IL Public
Storm total snowfall.
1017 AM Snow Harwood Heights 41.97N 87.81W
12/07/2025 M5.0 Inch Cook IL Public
Storm total snowfall.
1107 AM Snow Albany Park - Chicago 41.97N 87.72W
12/07/2025 M5.0 Inch Cook IL Public
Storm total snowfall.
0700 AM Snow 1 NE Wheaton 41.87N 88.10W
12/07/2025 M4.8 Inch DuPage IL Cocorahs
Cocorahs station IL-DP-201 Wheaton 1 NE.
0700 AM Snow Cortland 41.92N 88.69W
12/07/2025 M4.8 Inch De Kalb IL Cocorahs
Cocorahs station IL-DK-5 Cortland.
0715 AM Snow Harwood Heights 41.97N 87.80W
12/07/2025 M4.8 Inch Cook IL Cocorahs
Cocorahs station IL-CK-285 Harwood Heights.
1200 PM Snow Ohare Airport 41.98N 87.90W
12/07/2025 M4.8 Inch Cook IL Official NWS Obs
Storm total snowfall. From 6 AM to 12 PM
snow observed was 0.8 inches.
0700 AM Snow 1 SE Elmhurst 41.89N 87.93W
12/07/2025 M4.7 Inch DuPage IL Cocorahs
Cocorahs station IL-DP-109 Elmhurst 0.8 ESE.
0710 AM Snow Ashton 41.86N 89.23W
12/07/2025 M4.7 Inch Lee IL Cocorahs
Cocorahs station IL-LE-8 Ashton.
0725 AM Snow 1 WSW Wheaton 41.86N 88.12W
12/07/2025 M4.7 Inch DuPage IL Cocorahs
Cocorahs station IL-DP-184 Wheaton.
0800 AM Snow 1 E Evanston 42.04N 87.68W
12/07/2025 M4.7 Inch Cook IL Cocorahs
Cocorahs station IL-CK-336 Evanston 1 E.
0809 AM Snow Edgewater - Chicago 41.98N 87.66W
12/07/2025 M4.7 Inch Cook IL Public
0800 AM Snow Geneva 41.88N 88.30W
12/07/2025 M4.6 Inch Kane IL Cocorahs
Cocorahs station IL-KN-133 Geneva.
0805 AM Snow 1 ESE Villa Park 41.88N 87.96W
12/07/2025 M4.6 Inch DuPage IL Cocorahs
Cocorahs station IL-DP-178 Villa Park.
0820 AM Snow 1 SSW La Grange Park 41.82N 87.88W
12/07/2025 M4.6 Inch Cook IL Cocorahs
Cocorahs station IL-CK-98 La Grange Park 1
SSW.
0700 AM Snow West Ridge - Chicago 42.00N 87.70W
12/07/2025 M4.5 Inch Cook IL Cocorahs
Cocorahs station IL-CK-94 Chicago - West
Ridge.
0700 AM Snow 2 WNW Geneva 41.89N 88.33W
12/07/2025 M4.5 Inch Kane IL Cocorahs
Cocorahs station IL-KN-121 Geneva 2 WNW.
0725 AM Snow 2 W Aurora 41.76N 88.35W
12/07/2025 M4.5 Inch Kane IL Cocorahs
Cocorahs station IL-KN-123 Aurora 2 W.
0800 AM Snow Franklin Park 41.93N 87.87W
12/07/2025 M4.5 Inch Cook IL Cocorahs
Cocorahs station IL-CK-345 Franklin Park 0.5
SSE.
0800 AM Snow 1 E Batavia 41.85N 88.30W
12/07/2025 M4.5 Inch Kane IL Cocorahs
Cocorahs station IL-KN-132 Batavia.
0830 AM Snow 1 NNW Batavia 41.87N 88.32W
12/07/2025 M4.5 Inch Kane IL Cocorahs
Cocorahs station IL-KN-22 Geneva 1 SSW.
1127 AM Snow La Grange 41.81N 87.87W
12/07/2025 M4.5 Inch Cook IL Public
Storm total snowfall.
0830 AM Snow 1 SW Irving Park - Chic 41.95N 87.73W
12/07/2025 M4.4 Inch Cook IL Cocorahs
Cocorahs station IL-CK-429 Harwood Heights
4.0 ESE.
0700 AM Snow 1 NW Batavia 41.86N 88.33W
12/07/2025 M4.3 Inch Kane IL Cocorahs
Cocorahs station IL-KN-23 Batavia 1 NW.
0710 AM Snow 1 ENE North Aurora 41.82N 88.31W
12/07/2025 M4.3 Inch Kane IL Cocorahs
Cocorahs station IL-KN-33 North Aurora 1
ENE.
0800 AM Snow 1 N Douglas - Chicago 41.85N 87.62W
12/07/2025 M4.3 Inch Cook IL NWS Employee
Storm total as of 8 AM.
1200 PM Snow 3.0 SW Midway Airport 41.74N 87.78W
12/07/2025 M4.3 Inch Cook IL CO-OP Observer
Updated snowfall total. From 6 AM to 12 PM
snow observed was 0.7 inches.
1100 AM Snow Edgewater - Chicago 41.99N 87.66W
12/07/2025 M4.2 Inch Cook IL Public
Storm total snowfall.
0600 AM Snow Batavia 41.85N 88.31W
12/07/2025 M4.1 Inch Kane IL Emergency Mngr
Snowfall total as of 6 AM.
0700 AM Snow 1 W Hillside 41.88N 87.92W
12/07/2025 M4.1 Inch DuPage IL Cocorahs
Cocorahs station IL-DP-117 Elmhurst 2 SE.
0700 AM Snow Carol Stream 41.91N 88.13W
12/07/2025 M4.1 Inch DuPage IL Cocorahs
Cocorahs station IL-DP-42 Carol Stream.
0700 AM Snow 1 S Oak Park 41.87N 87.79W
12/07/2025 M4.0 Inch Cook IL Cocorahs
Cocorahs station IL-CK-426 Oak Park 1.0 SSE.
0700 AM Snow 4 ESE Aurora 41.73N 88.24W
12/07/2025 M4.0 Inch DuPage IL Cocorahs
Cocorahs station IL-DP-16 Aurora 4 ESE.
0800 AM Snow 4 ESE Aurora 41.74N 88.23W
12/07/2025 M4.0 Inch DuPage IL Cocorahs
Cocorahs station IL-KN-115 Aurora 4 ESE.
0916 AM Snow Dunning - Chicago 41.94N 87.81W
12/07/2025 M4.0 Inch Cook IL Public
1007 AM Snow 1 NW Indian Creek 42.24N 87.99W
12/07/2025 M4.0 Inch Lake IL Public
Storm total snow.
1100 AM Snow 2 NNW Bridgeport - Chic 41.86N 87.66W
12/07/2025 M4.0 Inch Cook IL Public
Storm total snow.
1152 AM Snow Harwood Heights 41.97N 87.81W
12/07/2025 M4.0 Inch Cook IL Trained Spotter
Storm total snowfall.
1217 PM Snow Chesterton 41.61N 87.06W
12/07/2025 M4.0 Inch Porter IN Public
Storm total snowfall.
0700 AM Snow 2 S Downers Grove 41.77N 88.01W
12/07/2025 M3.9 Inch DuPage IL Cocorahs
Cocorahs station IL-DP-189 Downers Grove 1.8
SSE.
0815 AM Snow Oak Lawn 41.71N 87.75W
12/07/2025 M3.9 Inch Cook IL Cocorahs
Cocorahs station IL-CK-149 Oak Lawn.
0824 AM Snow Oak Lawn 41.72N 87.75W
12/07/2025 M3.9 Inch Cook IL Public
Storm total snow as of 8:24 AM. Relayed via
social media.
0600 AM Snow Batavia 41.85N 88.31W
12/07/2025 M3.7 Inch Kane IL CO-OP Observer
CO-OP Observer station BATI2 Batavia.
0600 AM Snow 2 NW North Aurora 41.83N 88.36W
12/07/2025 M3.7 Inch Kane IL Cocorahs
Cocorahs station IL-KN-128 Batavia 3.4 WSW.
0700 AM Snow 1 S Woodridge 41.74N 88.05W
12/07/2025 M3.5 Inch DuPage IL Cocorahs
Cocorahs station IL-DP-198 Woodridge 0.3 SW.
0700 AM Snow Clarendon Hills 41.80N 87.95W
12/07/2025 M3.5 Inch DuPage IL CO-OP Observer
CO-OP Observer station WJWI2 Clarendon
Hills.
0700 AM Snow 5 SSW Naperville 41.71N 88.17W
12/07/2025 M3.5 Inch Will IL Cocorahs
Cocorahs station IL-WL-92 Naperville 5 SSW.
0730 AM Snow 2 SE Darien 41.73N 87.95W
12/07/2025 M3.4 Inch DuPage IL Cocorahs
Cocorahs station IL-DP-79 Darien 2 SE.
0750 AM Snow 1 ENE Oakbrook Terrace 41.86N 87.95W
12/07/2025 M3.4 Inch DuPage IL Cocorahs
Cocorahs station IL-DP-202 Oak Brook 1.5 N.
0700 AM Snow 1 NNE Boulder Hill 41.72N 88.33W
12/07/2025 M3.3 Inch Kendall IL Cocorahs
Cocorahs station IL-KD-5 Boulder Hill 1 NNE.
0700 AM Snow Hometown 41.73N 87.73W
12/07/2025 M3.0 Inch Cook IL Cocorahs
Cocorahs station IL-CK-455 Hometown.
0700 AM Snow 4 S Sugar Grove 41.71N 88.43W
12/07/2025 M3.0 Inch Kendall IL Cocorahs
Cocorahs station IL-KD-157 Yorkville 4.5 N.
0709 AM Snow 1 WSW Amboy 41.71N 89.34W
12/07/2025 M3.0 Inch Lee IL Cocorahs
Cocorahs station IL-LE-22 Amboy 1 WSW.
0800 AM Snow 4 W Palos Park 41.68N 87.91W
12/07/2025 M3.0 Inch Cook IL Cocorahs
Cocorahs station IL-CK-173 Palos Park 4 W.
1017 AM Snow Frankfort 41.50N 87.85W
12/07/2025 M3.0 Inch Will IL Public
Storm total snowfall.
1025 AM Snow Palos Park 41.67N 87.83W
12/07/2025 M3.0 Inch Cook IL Public
Storm total snow.
0600 AM Snow 1 SSE Boulder Hill 41.70N 88.33W
12/07/2025 M2.8 Inch Kendall IL Cocorahs
Cocorahs station IL-KD-136 Oswego.
0730 AM Snow 1 WNW Bridgeview 41.76N 87.82W
12/07/2025 M2.8 Inch Cook IL Cocorahs
Cocorahs station IL-CK-12 Bridgeview 1 WNW.
0929 AM Snow 1 ESE Yorkville 41.64N 88.44W
12/07/2025 M2.8 Inch Kendall IL NWS Employee
Storm total snowfall.
0700 AM Snow Chicago Ridge 41.70N 87.78W
12/07/2025 M2.7 Inch Cook IL Cocorahs
Cocorahs station IL-CK-152 Chicago Ridge.
0630 AM Snow 2 SE Boulder Hill 41.69N 88.31W
12/07/2025 M2.5 Inch Kendall IL Cocorahs
Cocorahs station IL-KD-126 Boulder Hill.
0700 AM Snow 1 WSW Valparaiso 41.47N 87.09W
12/07/2025 M2.5 Inch Porter IN Cocorahs
Cocorahs station IN-PT-3 Valparaiso.
0700 AM Snow Porter 41.62N 87.08W
12/07/2025 M2.5 Inch Porter IN Cocorahs
Cocorahs station IN-PT-69 Porter.
1200 PM Snow 1 NNE Homer Glen 41.61N 87.93W
12/07/2025 M2.5 Inch Will IL Cocorahs
Updated storm total snowfall.
0800 AM Snow 2 NW Plainfield 41.63N 88.23W
12/07/2025 M2.3 Inch Will IL Cocorahs
Cocorahs station IL-WL-171 Plainfield 1.7
WNW.
0700 AM Snow 4 SW Plainfield 41.57N 88.27W
12/07/2025 M2.2 Inch Kendall IL Cocorahs
Cocorahs station IL-KD-34 Plainfield 4 SW.
0900 AM Snow Joliet 41.53N 88.08W
12/07/2025 M2.2 Inch Will IL Trained Spotter
Storm total snowfall.
0600 AM Snow 1 WSW St. John 41.45N 87.48W
12/07/2025 M2.1 Inch Lake IN Cocorahs
Cocorahs station IN-LK-46 St. John.
1200 PM Snow NWS Chicago-Romeoville 41.60N 88.08W
12/07/2025 M2.1 Inch Will IL Official NWS Obs
Storm total snowfall. From 6 AM to 12 PM
snow observed was 0.4 inches.
0630 AM Snow 1 SE Lakewood Shores 41.27N 88.13W
12/07/2025 M2.0 Inch Will IL Cocorahs
Cocorahs station IL-WL-73 Lakewood Shores 1
SE.
0700 AM Snow 1 SSE Worth 41.68N 87.79W
12/07/2025 M2.0 Inch Cook IL Cocorahs
Cocorahs station IL-CK-430 Worth.
0700 AM Snow 4 ESE Chesterton 41.58N 86.99W
12/07/2025 M2.0 Inch Porter IN Cocorahs
Cocorahs station IN-PT-159 Chesterton 4 ESE.
1018 AM Snow 1 W Tinley Park 41.57N 87.82W
12/07/2025 M2.0 Inch Cook IL Public
Storm total snowfall.
0700 AM Snow 1 NNE Homer Glen 41.61N 87.93W
12/07/2025 M1.9 Inch Will IL Cocorahs
Cocorahs station IL-WL-131 Homer Glen 1 NNE.
0700 AM Snow 3 NNW Lake Station 41.62N 87.25W
12/07/2025 M1.9 Inch Lake IN Cocorahs
Cocorahs station IN-LK-63 Gary 5 ENE.
0800 AM Snow 1 SSW Mendota 41.53N 89.13W
12/07/2025 M1.9 Inch La Salle IL CO-OP Observer
CO-OP Observer station MDTI2 Mendota 1 SE.
0615 AM Snow Ogden Dunes 41.62N 87.20W
12/07/2025 M1.8 Inch Porter IN Cocorahs
Cocorahs station IN-PT-157 Ogden Dunes.
0700 AM Snow 2 WSW Palos Park 41.65N 87.86W
12/07/2025 M1.8 Inch Cook IL Cocorahs
Cocorahs station IL-CK-50 Palos Park 2 WSW.
0700 AM Snow Homewood 41.56N 87.66W
12/07/2025 M1.8 Inch Cook IL Cocorahs
Cocorahs station IL-CK-64 Homewood.
0700 AM Snow 2 WSW Mokena 41.52N 87.92W
12/07/2025 M1.8 Inch Will IL Cocorahs
Cocorahs station IL-WL-97 Mokena 2 WSW.
0559 AM Snow 1 N Valparaiso 41.49N 87.06W
12/07/2025 M1.7 Inch Porter IN Cocorahs
Cocorahs station IN-PT-98 Valparaiso 1 N.
0700 AM Snow 1 WSW Crest Hill 41.55N 88.13W
12/07/2025 M1.7 Inch Will IL CO-OP Observer
CO-OP Observer station JKJI2 Joliet 2 N.
0700 AM Snow 3 S Sauk Village 41.45N 87.57W
12/07/2025 M1.5 Inch Will IL Cocorahs
Cocorahs station IL-WL-25 Crete 3 E.
0700 AM Snow 1 SSE New Lenox 41.50N 87.96W
12/07/2025 M1.5 Inch Will IL Cocorahs
Cocorahs station IL-WL-63 New Lenox 1 SSE.
0805 AM Snow 3 ENE Valparaiso 41.49N 87.00W
12/07/2025 M1.5 Inch Porter IN Cocorahs
Cocorahs station IN-PT-180 Valparaiso 2.7
ENE.
0700 AM Snow 1 N Ottawa 41.37N 88.84W
12/07/2025 M1.3 Inch La Salle IL Cocorahs
Cocorahs station IL-LS-17 Ottawa 1 N.
0700 AM Snow 3 N Carbon Hill 41.34N 88.30W
12/07/2025 M1.2 Inch Grundy IL CO-OP Observer
CO-OP Observer station CTYI2 Coal City 4
NNW.
0700 AM Snow 3 N Carbon Hill 41.34N 88.30W
12/07/2025 M1.2 Inch Grundy IL Cocorahs
Cocorahs station IL-GY-1 Carbon Hill 3 N.
0700 AM Snow 4 NNE Boone Grove 41.41N 87.10W
12/07/2025 M1.2 Inch Porter IN Cocorahs
Cocorahs station IN-PT-117 Boone Grove 4
NNE.
0700 AM Snow 2 WNW Boone Grove 41.37N 87.16W
12/07/2025 M1.2 Inch Porter IN Cocorahs
Cocorahs station IN-PT-18 Boone Grove 2 WNW.
0700 AM Snow 2 W Morris 41.35N 88.45W
12/07/2025 M1.1 Inch Grundy IL Cocorahs
Cocorahs station IL-GY-28 Morris 2 W.
0800 AM Snow 1 NNW Morris 41.37N 88.43W
12/07/2025 M1.1 Inch Grundy IL CO-OP Observer
CO-OP Observer station MOSI2 Morris 1 NW.
0539 AM Snow 1 NW Ottawa 41.36N 88.86W
12/07/2025 M1.0 Inch La Salle IL Cocorahs
Cocorahs station IL-LS-1 Ottawa.
0700 AM Snow 3 SSE St. John 41.42N 87.44W
12/07/2025 M1.0 Inch Lake IN Cocorahs
Cocorahs station IN-LK-99 St. John 3 SSE.
1020 AM Snow Cedar Lake 41.36N 87.44W
12/07/2025 M1.0 Inch Lake IN Public
Storm total snowfall.
0600 AM Snow 2 NNW Cedar Lake 41.39N 87.46W
12/07/2025 M0.9 Inch Lake IN Cocorahs
Cocorahs station IN-LK-109 Cedar Lake 1.4
NW.
0700 AM Snow Peotone 41.33N 87.79W
12/07/2025 M0.9 Inch Will IL Cocorahs
Cocorahs station IL-WL-46 Peotone.
0600 AM Snow 2 WSW Kankakee 41.11N 87.89W
12/07/2025 M0.8 Inch Kankakee IL Cocorahs
Cocorahs station IL-KK-45 Kankakee 1.4 WSW.
0700 AM Snow 2 SE Mazon 41.21N 88.40W
12/07/2025 M0.8 Inch Grundy IL Cocorahs
Cocorahs station IL-GY-37 Mazon 2 SE.
0845 AM Snow Coal City 41.29N 88.28W
12/07/2025 M0.8 Inch Grundy IL Cocorahs
Cocorahs station IL-GY-4 Coal City.
0700 AM Snow 3 ENE Roselawn 41.17N 87.26W
12/07/2025 M0.7 Inch Jasper IN Cocorahs
Cocorahs station IN-JS-49 Roselawn 3 ENE.
0800 AM Snow 2 WSW Goodenow 41.38N 87.68W
12/07/2025 M0.7 Inch Will IL Cocorahs
Cocorahs station IL-WL-149 Monee 5 SE.
0700 AM Snow 4 NE Fair Oaks 41.11N 87.20W
12/07/2025 M0.6 Inch Jasper IN Cocorahs
Cocorahs station IN-JS-31 De Motte 6 S.
0600 AM Snow Collegeville 40.91N 87.16W
12/07/2025 M0.5 Inch Jasper IN Cocorahs
Cocorahs station IN-JS-7 Collegeville.
0700 AM Snow 2 W Bourbonnais 41.17N 87.92W
12/07/2025 M0.5 Inch Kankakee IL CO-OP Observer
CO-OP Observer station BOUI2 Bourbonnais.
0700 AM Snow Chatsworth 40.75N 88.29W
12/07/2025 M0.5 Inch Livingston IL CO-OP Observer
CO-OP Observer station CHTI2 Chatsworth.
0700 AM Snow 2 SSE Streator 41.10N 88.82W
12/07/2025 M0.5 Inch Livingston IL CO-OP Observer
CO-OP Observer station STAI2 Streator.
0800 AM Snow 1 SW DeMotte 41.18N 87.21W
12/07/2025 M0.5 Inch Jasper IN Cocorahs
Cocorahs station IN-JS-45 DeMotte.
0600 AM Snow 2 N Crescent City 40.80N 87.86W
12/07/2025 M0.4 Inch Iroquois IL Cocorahs
Cocorahs station IL-IR-14 Crescent City 2 N.
0700 AM Snow 2 NNW Dwight 41.12N 88.45W
12/07/2025 M0.4 Inch Grundy IL Cocorahs
Cocorahs station IL-GY-38 Dwight 2.2 NNW.
0700 AM Snow 1 WSW Streator 41.12N 88.85W
12/07/2025 M0.4 Inch La Salle IL Cocorahs
Cocorahs station IL-LS-45 Streator 1 WSW.
0740 AM Snow 3 W Irwin 41.05N 88.04W
12/07/2025 M0.4 Inch Kankakee IL Cocorahs
Cocorahs station IL-KK-39 Herscher 3 E.
0830 AM Snow 2 NNE Mount Ayr 40.97N 87.29W
12/07/2025 M0.4 Inch Newton IN Cocorahs
Cocorahs station IN-NW-1 Mount Ayr 2 NNE.
0730 AM Snow 1 NW Collegeville 40.92N 87.18W
12/07/2025 M0.3 Inch Jasper IN CO-OP Observer
CO-OP Observer station RZZI3 Rensselaer 2
SW.
0800 AM Snow Remington 40.77N 87.15W
12/07/2025 M0.1 Inch Jasper IN Cocorahs
Cocorahs station IN-JS-47 Remington.
&&
$$
Meteorology
The second snow event of the season, this one also during the weekend, was a longer duration event that was truly made up of two meteorological systems. The first was a minor upper disturbance that produced lift and saturation in an inherent cold atmosphere, favorable for larger dendritic snowflake growth. The second system was about 12 hours later, with occasional flurries/light snow in-between. This second upper level disturbance was a stronger one and steered high moisture northward over the area. The snow caused by this event was a more wet snow, with snowflakes sticking together as they fell. Both "bursts" of snow activity had rates near or over one inch per hour at times north of I-80.
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| December 10, 2016: Radar loop from noon to midnight | December 11, 2016: Radar loop from midnight to noon | December 11, 2016: Radar loop from noon to midnight |
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| December 11, 2016: NWS Chicago Doppler Radar Reflectivity loop from 9 a.m. through 10 p.m. The yellow areas indicate over 30 dBZ echoes of snow that are indicative of a high number of snowflakes or large snowflakes, or both. These echoes were often in stripes correlating with snow bands. The forcing for this was a developing frontogenetic circulation in response to the deepening of the weather system and tightening of the temperature gradient aloft. |
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| December 11, 2016: NWS Chicago Doppler Radar Reflectivity image from 4:45 pm Heavy snow bands across Lake and McHenry Counties southwest through DuPage, Kane, DeKalb, and LaSalle Counties. |
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| December 11, 2016: RAP Analysis of 500 mb at 6 p.m. The colors indicate the mid-level winds and the black lines heights. The short wave trough moving across the Upper Midwest and the associated jet promoted widespread lift and deformation across northern Illinois, which favored the development of the frontogenetic circulation and snow bands. | December 11, 2016: RAP Analysis of Precipitable Water (PWAT) at 3 p.m. Moisture values in excess of 0.6 inches are high for all snow events. Similar to the prior Sunday, the snow became more wet and coupled with the light winds at the surface, it stuck to many objects such as trees. The 6 pm NWS Lincoln, IL weather balloon confirmed these values with 0.71" PWAT observed. |
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| December 10, 2016 6 p.m.: RAP model analysis in far northern Illinois | December 11, 2016 9 a.m.: RAP model analysis in far northern Illinois | December 11, 2016 6 p.m.: RAP model analysis in far northern Illinois |
Additional
Photos
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| Photo courtesy of Christian Lyon, Lakeview area of Chicago, IL | Photo courtesy of Christine McEvilly in the southwest Suburbs |
Links
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