Summary of Snowfall over Northeast IL and Northwest IN on February 22, 2013

Summary of Snowfall over Northeast IL and Northwest IN

Satellite and Radar

GOES Water Vapor Loop From 8 am Thursday Morning Through 8 am Friday Morning

This 24 hour loop reveals the immense size of this upper level low pressure which brought a huge variety of impacting weather to the central U.S., including a major snow storm to Kansas into Missouri, freezing rain to parts of the mid-Mississippi Valley and Arkansas, and even severe weather in the Deep South. Note also on this loop the system's dry slot and its movement over our area by early overnight. The dry slot is identified by the drier colors (yellowish) that wrap into and partially around well-organized mature weather systems. This moved rapidly into the area cutting off deep moisture and support for prolonged heavier snow. However, on this feature's leading edge is a favored area for more intense precipitation, which was partially responsible for the temporary heavy snow rates on Thursday night.

Radar: 10 pm	Radar: 1 am	Radar: 4 am

Regional radar reflectivity from Thursday night showing the moderate to heavy area of snow progressing northeast, with redeveloping snow/sleet/freezing rain showers in its wake. Behind this was the heart of the dry slot, and mainly freezing drizzle or very light snow was observed toward daybreak.

Snowfall Amounts

Here is a map of snowfall across northern Illinois and northwest Indiana for the 24 hour period ending 700 AM CST February 22, 2013. This product is an objective analysis of NWS Cooperative Observer Program (COOP) and Community Collaborative Rain, Hail and Snow Network (CoCoRaHS) snowfall reports. CoCoRaHS data is from non-NWS sources and may have not been fully quality controlled.

PUBLIC INFORMATION STATEMENT
NATIONAL WEATHER SERVICE CHICAGO IL
1016 AM CST FRI FEB 22 2013

...MORNING SNOWFALL ROUNDUP...

   THE FOLLOWING ARE SNOW AMOUNTS FOR THE PREVIOUS 24-HOURS.
   OBSERVATIONS ARE USUALLY TAKEN AT 7 AM.

   24-HOUR SNOWFALL AMOUNTS FOR FRIDAY(02/22/13)...


NORTHERN ILLINOIS                              SNOW
  LOCATION (COUNTY):                           FALL(INCHES)

  WOODSTOCK 2WSW (MCHENRY)......................5.0
  HARVARD (MCHENRY).............................4.0
  ROCKFORD 3NE (WINNEBAGO)......................4.0
  DOWNERS GROVE (COOK)..........................3.8
  CHICAGO 6ESE (COOK)...........................3.6
  WONDER LAKE 1WNW (MCHENRY)....................3.6
  HOFFMAN ESTATES 5W (COOK).....................3.5
  SOUTH WILMINGTON 2E (GRUNDY)..................3.5
  LAKE VILLA 1SSW (LAKE)........................3.5
  HIGHWOOD 1S (LAKE)............................3.5
  LOCKPORT 1SE (WILL)...........................3.5
  MARENGO (MCHENRY).............................3.5
  ROMEOVILLE (WILL).............................3.4
  WOODSTOCK 5NW (MCHENRY).......................3.4
  GENOA (DE KALB)...............................3.3
  DE KALB (DE KALB).............................3.3
  GURNEE 2W (LAKE)..............................3.3
  BULL VALLEY 2WNW (MCHENRY)....................3.3
  MIDWAY COOP (COOK)............................3.3
  AURORA (KANE).................................3.2
  BOTANIC GARDENS (COOK)........................3.2
  CAPRON (BOONE)................................3.2
  SCHAUMBURG  2E (COOK).........................3.2
  SCHAUMBURG (COOK).............................3.2
  OAK PARK 1NNE (COOK)..........................3.2
  GRAYSLAKE (LAKE)..............................3.2
  BURNHAM-HEGEWISCH 2NNW (COOK).................3.2
  CLARENDON HILLS 1S (DU PAGE)..................3.2
  PLAINFIELD 5SW (KENDALL)......................3.2
  BEACH PARK 1W (LAKE)..........................3.2
  PONTIAC 1ESE (LIVINGSTON).....................3.2
  CARY (MCHENRY)................................3.2
  OAK LAWN (COOK)...............................3.1
  NAPERVILLE 1NW (DU PAGE)......................3.1
  LINCOLNSHIRE 1N (LAKE)........................3.1
  JOLIET 2N (WILL)..............................3.1
  ST CHARLES 7NW (KANE).........................3.1
  BARRINGTON (LAKE).............................3.0
  ELBURN (KANE).................................3.0
  WILLOWBROOK (COOK)............................3.0
  OAK PARK 2S (COOK)............................3.0
  ALSIP (COOK)..................................3.0
  HARWOOD HEIGHTS 2NNE (COOK)...................3.0
  PALOS PARK 1SW (COOK).........................3.0
  LA GRANGE PARK 1SSW (COOK)....................3.0
  MELROSE PARK (COOK)...........................3.0
  ELMHURST 1ESE (DU PAGE).......................3.0
  BURR RIDGE 2SW (DU PAGE)......................3.0
  SUGAR GROVE 1NE (KANE)........................3.0
  ELGIN 1WSW (KANE).............................3.0
  ELBURN 3NNE (KANE)............................3.0
  ST. CHARLES (KANE)............................3.0
  GENEVA 1SSW (KANE)............................3.0
  FOX LAKE 2SE (LAKE)...........................3.0
  HUNTLEY 4W (MCHENRY)..........................3.0
  ALGONQUIN 1N (MCHENRY)........................3.0
  HOMER GLEN 1ENE (WILL)........................3.0
  PLAINFIELD 2SSE (WILL)........................3.0
  NEW LENOX 2SE (WILL)..........................3.0
  ROCKTON 1ESE (WINNEBAGO)......................3.0
  JOLIET LOCK/DAM (WILL)........................3.0
  LAKE ZURICH (LAKE)............................3.0
  LA GRANGE (COOK)..............................3.0
  MENDOTA (LA SALLE)............................3.0
  MCHENRY (MCHENRY).............................3.0
  PAW PAW (LEE).................................3.0
  ST CHARLES (KANE).............................3.0
  LISLE MORTON ARB (DU PAGE)....................3.0
  WINFIELD (DU PAGE)............................3.0
  LISLE 1SE (DU PAGE)...........................2.9
  HAWTHORN WOODS 1N (LAKE)......................2.9
  PLAINFIELD 1SW (WILL).........................2.9
  MUNDELEIN (LAKE)..............................2.9
  OAK BROOK (DU PAGE)...........................2.9
  PALATINE 1E (COOK)............................2.8
  PARK RIDGE (COOK).............................2.8
  LINCOLNWOOD 2E (COOK).........................2.8
  BOLINGBROOK 3NE (DU PAGE).....................2.8
  LISLE (DU PAGE)...............................2.8
  ELGIN 2W (KANE)...............................2.8
  MARSEILLES 3NW (LA SALLE).....................2.8
  NEW LENOX 3E (WILL)...........................2.8
  JOLIET (WILL).................................2.8
  KANKAKEE (KANKAKEE)...........................2.8
  ROCKFORD 4NW (WINNEBAGO)......................2.8
  YORKVILLE 2SE (KENDALL).......................2.8
  CHICAGO RIDGE (COOK)..........................2.7
  ORLAND HILLS 1SE (COOK).......................2.7
  ELK GROVE VILLAGE 2WSW (COOK).................2.7
  LA SALLE (LA SALLE)...........................2.7
  MOKENA 1W (WILL)..............................2.7
  ROSCOE 2ESE (WINNEBAGO).......................2.7
  MONEE (WILL)..................................2.7
  OHARE (COOK)..................................2.7
  ROCKFORD (WINNEBAGO)..........................2.7
  ROSCOE 2SE (WINNEBAGO)........................2.7
  STEWARD (LEE).................................2.7
  CHANNAHON (WILL)..............................2.6
  COAL CITY 4NNW (GRUNDY).......................2.6
  ARLINGTON HEIGHTS 2NNW (COOK).................2.6
  COUNTRYSIDE 1ENE (COOK).......................2.6
  COUNTRYSIDE 1NNE (COOK).......................2.6
  GENEVA 1N (KANE)..............................2.6
  PLAINFIELD (WILL).............................2.6
  EARLVILLE 3S (LA SALLE).......................2.5
  HEBRON (MCHENRY)..............................2.5
  SCHAUMBURG 3WSW (COOK)........................2.5
  WORTH (COOK)..................................2.5
  ORLAND HILLS 1S (COOK)........................2.5
  ELK GROVE VILLAGE 1ESE (COOK).................2.5
  WESTMONT 1SSE (DU PAGE).......................2.5
  DOWNERS GROVE 2SE (DU PAGE)...................2.5
  BARTLETT 1SSE (DU PAGE).......................2.5
  MONTGOMERY 2SSE (KENDALL).....................2.5
  YORKVILLE 1NE (KENDALL).......................2.5
  BATAVIA 2WNW (KANE)...........................2.5
  DIXON 2SW (LEE)...............................2.5
  SHERIDAN (LA SALLE)...........................2.5
  OTTAWA 2N (LA SALLE)..........................2.5
  MARSEILLES 6WNW (LA SALLE)....................2.5
  OGLESBY 1ESE (LA SALLE).......................2.5
  OTTAWA (LA SALLE).............................2.5
  STREATOR 1WSW (LA SALLE)......................2.5
  PEOTONE (WILL)................................2.5
  WILMINGTON 3SE (WILL).........................2.5
  ROCKFORD 1NW (WINNEBAGO)......................2.5
  PARK FOREST (COOK)............................2.5
  ELGIN (KANE)..................................2.4
  CAROL STREAM (DU PAGE)........................2.4
  MONTGOMERY 1SSE (KENDALL).....................2.4
  BATAVIA 1WNW (KANE)...........................2.4
  JOLIET 1ENE (WILL)............................2.4
  NORTH AURORA 2NE (KANE).......................2.3
  MENDOTA 2SE (LA SALLE)........................2.3
  BOURBONNAIS 2NNE (KANKAKEE)...................2.2
  ST. CHARLES 6NW (KANE)........................2.2
  CARY 2NE (MCHENRY)............................2.2
  MANHATTAN 5ENE (WILL).........................2.2
  MANHATTAN (WILL)..............................2.2
  MORRIS (GRUNDY)...............................2.2
  DE KALB (DE KALB).............................2.1
  PARK FOREST 1NNE (COOK).......................2.1
  CORTLAND (DE KALB)............................2.1
  CRETE 3E (WILL)...............................2.1
  PEOTONE (WILL)................................2.1
  OTTAWA (LA SALLE).............................2.1
  PEOTONE (WILL)................................2.1
  SHABBONA (DE KALB)............................2.1
  DWIGHT (LIVINGSTON)...........................2.0
  AURORA 4SE (DU PAGE)..........................2.0
  BONFIELD 4WSW (KANKAKEE)......................2.0
  SUBLETTE (LEE)................................2.0
  WAUKEGAN 2N (LAKE)............................2.0
  OTTAWA 1NW (LA SALLE).........................2.0
  SENECA 2SSW (LA SALLE)........................2.0
  BYRON 3N (OGLE)...............................2.0
  NEW LENOX 4SE (WILL)..........................2.0
  ELGIN (KANE)..................................1.8
  ASHTON (LEE)..................................1.8
  MARSEILLES (LA SALLE).........................1.8
  ST ANNE (KANKAKEE)............................1.8
  BEECHER (WILL)................................1.8
  BATAVIA (KANE)................................1.7
  MAZON (GRUNDY)................................1.7
  PONTIAC (LIVINGSTON)..........................1.7
  DRESDEN LOCK/DAM (GRUNDY).....................1.6
  KANKAKEE 3SE (KANKAKEE).......................1.6
  BOURBONNAIS (KANKAKEE)........................1.5
  BRACEVILLE (GRUNDY)...........................1.5
  WATSEKA 5W (IROQUOIS).........................1.5
  MENDOTA 1N (LA SALLE).........................1.5
  STREATOR 4ENE (LA SALLE)......................1.5
  JOLIET 3WNW (WILL)............................1.5
  ROCHELLE (OGLE)...............................1.5
  AMBOY (LEE)...................................1.3
  FAIRBURY (LIVINGSTON).........................1.0
  MILFORD (IROQUOIS)............................1.0
  PAXTON (FORD).................................1.0
  WATSEKA (IROQUOIS)............................1.0
  CHATSWORTH (LIVINGSTON).......................0.5

NORTHWEST INDIANA                              SNOW
  LOCATION (COUNTY):                           FALL(INCHES)

  LAKE VILLAGE (NEWTON).........................3.6
  HIGHLAND (LAKE)...............................3.2
  (W9MAL)MERRILLVILLE 2NNW (LAKE)...............3.0
  ST. JOHN (LAKE)...............................2.8
  SCHERERVILLE 2WSW (LAKE)......................2.7
  VALPARAISO 6WSW (PORTER)......................2.3
  PORTAGE 1ESE (PORTER).........................2.2
  LAKES OF THE FOUR SEASONS 2NNE (PORTER).......2.1
  VALPARAISO 1ENE (PORTER)......................2.1
  PORTER 1S (PORTER)............................2.1
  DE MOTTE 1SSW (JASPER)........................2.0
  REMINGTON (JASPER)............................2.0
  (W9OPR)WHEATFIELD 1ENE (JASPER)...............2.0
  KENTLAND 1NNW (NEWTON)........................2.0
  BROOK 4W (NEWTON).............................2.0
  LAKES OF THE FOUR SEASONS (PORTER)............2.0
  VALPARAISO 2N (PORTER)........................2.0
  RENSSELAER 6SE (JASPER).......................1.8
  VALPARAISO 1SE (PORTER).......................1.8
  VALPARAISO 6SSW (PORTER)......................1.8
  RENSSELAER (JASPER)...........................1.8
  CROWN POINT 1N (LAKE).........................1.6
  VALPARAISO 5NNE (PORTER)......................1.6
  REMINGTON (JASPER)............................1.6
  VALPARAISO 5NNE (PORTER)......................1.6
  (WV90)HOBART 1ENE (LAKE)......................1.5
  VALPARAISO 1NE (PORTER).......................1.5
  HEBRON 4NE (PORTER)...........................1.4
  VALPARAISO 6NW (PORTER).......................1.4
  MOUNT AYR 2NNE (NEWTON).......................1.3
  VALPARAISO 1NNW (PORTER)......................1.3
  CROWN POINT 8E (PORTER).......................1.2
  VALPARAISO 4SW (PORTER).......................1.0
  (KB9F)VALPARAISO 4S (PORTER)..................1.0
  DE MOTTE 4SW (JASPER).........................0.7
  VALPARAISO 2NW (PORTER).......................0.7
  DE MOTTE 6S (JASPER)..........................0.4