National Weather Service United States Department of Commerce

Past Events

 

This page serves as a location to find past meteorological event information for northern Illinois and northwest Indiana. 

To the right is a link to Storm Data, a monthly publication by the NWS's National Climatic Data Center.  Storm Data will list all of the finalized, quality controlled severe weather reports and damage survey assessments within the NWS Chicago County Warning Area broken down by month.  To the lower right there is a thumbnail link to an interactive map archive of preliminary Local Storm Reports that are issued by an NWS office whenever a severe weather event is reported.

Below on this page are individual event reviews for the local area sorted by event type.  Many of these are archived stories from top news headlines on our home page in the hours to days after the events.  Click on the date to jump to the full archived event review. Each story contains data and records from the event, and often meteorological insight and photos. To quickly search for an event, click the "All" tab, hit Ctrl + F to search your browser, and enter the city, county, or date.

If you cannot find what you are looking for here, try our Local Climate page, or for visualizing various datasets also try the NOAA Weather and Climate Toolkit

         

Storm Data

Preliminary Local Storm Report Map

 

 
Historic Events in Northern Illinois & Northwest Indiana
  • February 28, 2017: First February significant tornadoes in northern IL on record; EF-3 in Naplate & Ottawa, IL
  • December 2015:  Warmest winter month & December on record for Rockford; warmest in Chicago in 90+ years
  • June 22, 2015:  Dozen tornadoes in northern IL with ten from one supercell including an EF-3 in Coal City, IL
  • April 9, 2015:  Violent EF-4 tornado strikes Rochelle area and Fairdale, IL
  • February 2015:  Coldest February in Chicago since 1875; coldest month since 1983
  • November 17, 2013:  4th largest Illinois tornado outbreak including EF-4 in Washington, 2nd largest in Indiana
  • April 17-18, 2013:  Record two day April rain brings record flooding to several northern IL rivers
  • October 29-30, 2012: Hurricane Sandy's remnants bring storm force winds and high waves to Lake Michigan
  • Summer 2012: Top 3 warmest summer on record for Chicago and Rockford
  • March 2012: Unprecedented early season warmth shatters March records
  • July 23, 2011:  Record setting daily rainfall in Chicago, part of the wettest July on record
  • January 7, 2008:  Mid-winter EF-3 tornado in January near Poplar Grove in Boone County into McHenry County
  • April 20, 2004:  F3 tornado kills eight in Utica, IL in LaSalle County; one of many tornadoes
  • July 5, 2003:  Significant wind damage from 100 mph winds across Rockford, IL including a downed TV tower
  • January 1-3, 1999: Major blizzard impacts the Midwest; 2nd largest snowstorm on record for Chicago
  • July 17-18, 1996: A record 16.94" of rain in Aurora with excessive flooding across the Chicago suburbs
  • August 28, 1990:  Deadly F5 tornado strikes Plainfield, IL (25th Anniversary)
  • April 21, 1967: Tornado outbreak in northern IL with three F4s devastates Belvidere, Lake Zurich, & Oak Lawn, IL
  • January 26-27, 1967: Largest snowstorm on record for Chicago brings nearly two feet of snow & a blizzard
  • April 11, 1965: Palm Sunday Tornado Outbreak ravages six states including Crystal Lake, IL with F4
All Events
  • May 17-18, 2017: Severe storms bring scattered intense damage & EF-1 tornado in Capron in Boone County
  • March 30, 2017: Heavy rainfall; wettest March calendar day in Chicago since 1948
  • March 23-25, 2017: Sharp day-to-day temperature changes including a near-record one hour temperature drop
  • March 13-14, 2017: Rare, longer duration heavy lake effect snow into northeast IL brings 8-15"
  • March 8, 2017: Strong non-thunderstorm wind gusts to 60 mph bring isolated damage
  • February 28, 2017: First February significant tornadoes in northern IL on record; EF-3 in Naplate & Ottawa, IL
  • 2016 Autumn: One of the warmest autumns results in latest first autumn freeze on record for Rockford
  • August 29, 2016:  Isolated very heavy rainfall brings flooding in Belvidere, Mendota, and Triumph, IL
  • August 28, 2016:  Flash flooding from 4" to over 6" in Braceville and Odell, IL and near Hebron, IN
  • August 12-20, 2016:  Multiple 4+" rain episodes including in Dixon, Kankakee, Lowell, and Plainfield
  • August 9, 2016:  Weak landspout tornado on the southwest side of Chicago
  • July 29, 2016:  Flash flooding near the I-88 corridor including parts of the west and south Chicago metro
  • July 21-24, 2016: Humid and hot weather brings multiple days of storms, with scattered wind damage in Chicago & flash flooding in Belvidere
  • July 17, 2016:  EF-1 tornado near Cabery, IL in Ford County and 2 to 6" of rain
  • July 13, 2016:  Severe winds along and south of I-80 with a picturesque sky afterward
  • July 7, 2016:  Localized heavy rainfall in northeast IL & northwest IN causes spotty flooding
  • July 6, 2016:  Isolated wind damage and 2 to 3" of rain in north central IL
  • June 22, 2016:  Over a dozen tornadoes in northern IL, including an EF-2 near Marseilles to Seneca, IL & in Pontiac, IL
  • June 14-15, 2016: Heavy rainfall and scattered wind damage in north central IL
  • May 25, 2016: Isolated wind damage and locally heavy rainfall
  • May 11-12, 2016: Heavy rainfall across north central IL brings isolated flooding
  • April 25, 2016: Hail in far northeast IL including to golf ball size in Wauconda in Lake County
  • April 3, 2016: Impressive single day temperature change; 5th largest on record in Rockford
  • March 16, 2016: Strong non-thunderstorm winds across northern IL and northwest IN
  • March 15, 2016: Early season storm brings hail across area, and tornadoes to northwest and central IL
  • February 24, 2016: Blizzard conditions in northwest IN and far eastern IL, with totals over a foot
  • December 2015:  Warmest winter month & December on record for Rockford; also wettest November-December on record
  • December 28, 2015:  Sleet & freezing rain event brings likely daily sleet record for Chicago
  • November 20-21, 2015: Second largest November snowstorm on record for Rockford & Chicago; totals up to 18" near WI stateline
  • September 12, 2015:  Early season lake effect rain showers bring waterspouts; science behind waterspouts
  • August 18, 2015:  Four confirmed brief EF-0 tornadoes and over three inches of rain in the Rockford area
  • August 10, 2015:  Severe microbust in Glen Ellyn, IL; the role of boundaries in severe weather
  • August 2, 2015: Large hail in DeKalb & Evanston, deadly wind damage in Wood Dale, & a tornado in Lake County, IL
  • July 13, 2015: Scattered large hail, including 3.75" diameter hail in Marseilles, IL in LaSalle County
  • June 2015:  A recap and rainfall totals of the extremely wet & active month
  • June 22, 2015:  Dozen tornadoes in northern IL including EF-3 in Coal City & EF-2 near Sublette, IL
  • June 15, 2015:  Widespread flooding across the western Chicago metro; EF-1 tornado near Symerton, IL in Will County
  • June 13, 2015:  Heavy rain leads to closing of I-80 in LaSalle County, IL
  • June 10, 2015:  Giant hail near Minooka, IL was largest in Illinois since at least 1961
  • June 8, 2015:  Many hail-producing storms, including up to golf ball size 
  • June 7, 2015:  Flash flooding south of I-80 and two brief tornadoes in Jasper County, IN
  • May 26, 2015:  Brief EF-0 tornado in Summit, IL in Cook County
  • April 9, 2015: Violent EF-4 tornado strikes Rochelle area and Fairdale, IL
  • 2014-2015 Winter:  Aggressive finish to winter, with one of the coldest Februarys on record
  • February 2015:  Coldest February in Chicago since 1875; coldest month since 1983
  • October 31, 2014:  Powerful autumn system brings strong winds and battering waves to IL and IN; flooding on Lake Shore Drive in Chicago
  • August 21-23, 2014:  Multiple heavy rain events, including hourly rainfall measured near 4" in Burbank, IL and Dyer, IN
  • July 28, 2014:  Near-record high waves and cold water temperatures for July observed across southern Lake Michigan
  • June 30, 2014:  Widespread damage and 30 total tornadoes across northern IL & northern IN within a derecho
  • June 18-24, 2014:  Several heavy rain events across northern IL & northwest IN, including over 5" in Lee County in one night, and 4" in Dwight, IL and Kouts, IN
  • May 20, 2014:  Baseball size hail in Chana, IL & damaging winds in DeKalb, IL
  • April 12, 2014:  Large hail up to golf ball size hail in the north Chicago metro
  • January 4-5, 2014:  Nearly a foot of snow in Chicago was city's largest in three years; Lake effect pounds northwest IN
  • November 17, 2013: Fourth largest tornado outbreak in Illinois including EF-4 in Washington, & second largest tornado outbreak in Indiana
  • July 20, 2013:  Large Hail Event with baseball sized hail across southern McHenry and northern Kane counties
  • July 10, 2013:  Hail larger than golf balls in Essex, IL in Kankakee County
  • June 27, 2013:  Supercell storm brings golf ball size hail and severe winds to Merrillville, IN in Lake County
  • June 24, 2013:  Derecho brings widespread wind damage along with tornado in Lee County
  • May 28, 2013:  EF-0 tornado near Coal City, IL in Grundy County
  • May 19 2013:  Golf ball size hail in Pecatonica, IL & wind damage in Winnebago County
  • May 14 2013:  Largest one day warm-up in May for Chicago and Rockford on record
  • April 17-18, 2013:  Record two day April rainfall brings record flooding to parts of the Des Plaines, DuPage, Fox & Vermillion Rivers
  • 2012-2013 Winter:  A record late start but aggressive finish to winter; a listing of events
  • October 29-30, 2012:  Remnants of Hurricane Sandy impact Lake Michigan with tropical storm force winds and high waves
  • Summer 2012:  Top 3 warmest on record for Chicago and Rockford
  • August 4, 2012:  Severe wind producing complex of storms with thousands of lightning strikes across area
  • 2012 Warmth:  Record warm water temperature and air temperatures over Lake Michigan
  • July 26, 2012:  Downburst over O'Hare International Airport brings 70 mph gust
  • July 4-7, 2012:  Impressive heat wave brings warmest temp to Rockford in 76 years, to Chicago in 17
  • July 5, 2012:  Microbursts in Cook County and over Merrillville & Gary, IN in Lake County
  • June 29, 2012:  Microburst crosses directly over Doppler Radar in Romeoville, IL in Will County
  • May 6, 2012:  EF-1 near Watseka, IL and widespread 2 to 4.50" of rain south of I-80
  • March 2012: Unprecedented early season warmth shatters March records
  • July 23, 2011:  Record setting daily rainfall in Chicago, part of the wettest July on record
  • July 11, 2011: Derecho brings widespread wind damage to northern IL, including six injuries in Palos Heights, IL
  • June 30, 2011: Supercell storm moves onshore from Lake Michigan bringing damaging winds and large hail to parts of Chicago
  • June 4, 2011:  Damaging winds from severe storms across northwest IN
  • May 25, 2011:  Tornadoes in eastern IL & northwest IN, including EF-2 near Mt. Ayr, IN
  • May 22, 2011:  Numerous EF-1 tornadoes in northern IL and northwest IN
  • October 26, 2010:  High winds with multiple tornadoes across eastern IL and northwest IN, including EF-2 near Peotone, IL
  • July 22-24, 2010:  Heavy rainfall episodes across the area, with over 8" in Rockford
  • June 18, 2010:  Two bow echoes with severe winds move across the area
  • June 14, 2010:  Softball sized hail and microbursts in Benton County, IN
  • June 5, 2010:  Dozen tornadoes across central & eastern IL, including two EF-3s near Streator, Dwight and St. Anne
  • April 7, 2010:  Brief EF-0 tornado near Forrest, IL in Livingston County
  • April 5, 2010:  Severe winds and large hail, including up to baseball size in northern Cook County
  • August 19, 2009:  Tornadoes in Kane, Iroquois, and Porter Counties, including an EF-2 in Chesterton, IN
  • July 2009:  Coolest July in Rockford on record; 7th in Chicago
  • June 19, 2009:  Widespread hail, winds and flooding across northern IL, as well as EF-1 tornado in Woodstock, IL
  • May 13, 2009:  Intense straight-line wind damage near Mt. Morris, IL in Ogle County
  • March 8, 2009:  Two EF-1 tornadoes in Kankakee County & EF-0 in Livingston County
  • August 4-5, 2008:  Five tornadoes across northeast IL & northwest IN, including EF-2 near Griffith, IN
  • June 13, 2008:  EF-1 tornado near Belvidere, IL in Boone County at 12:30 am
  • June 7, 2008:  Eight tornadoes, including four EF-2s across Will County
  • May 30, 2008:  Severe storms, including tennis ball size hail in Manteno, IL in Kankakee County, along with a wake low
  • January 7, 2008:  Mid-winter EF-3 tornado in January near Poplar Grove in Boone County into McHenry County
  • October 18, 2007:  Golf ball size hail in Joliet, IL as part of large severe weather outbreak from Michigan to Mississippi
  • August 23, 2007:  EF-1 in Winfield, IL in DuPage County & severe winds into Chicago
  • August 15, 2007:  Intense wind damage across Lake & Porter counties in northwest IN
  • August 7, 2007:  Rainfall of 5 to 7" across Rockford and Belvidere lead to flash flooding
  • July 25, 2007:  Microbursts in Burr Ridge & Homer Glen, IL in Cook County
  • June 1, 2007:  Damaging winds across Mendota, IL in LaSalle County in north central IL
  • May 16, 2007:  EF-0 in Schaumburg in Cook County & nearby downbursts
  • April 26, 2007:  EF-0 in Plainfield & Bolingbrook, IL  in Will County 
  • March 31, 2007:  Microburst in Carol Stream & Glendale Heights, IL in DuPage County 
  • 2006:  Record yearly number of Illinois tornadoes
  • October 2, 2006:  Severe wind damage in Hickory Hills, Bridgeview, Manhattan, & Peotone in Cook and Will Counties
  • September 4, 2006:  Up to seven and a half inches of rain cause Labor Day flooding in Rockford
  • April 14, 2006:  Baseball size hail near Milford, IL in Iroquois County & Remington, IN in Jasper County
  • July 13, 2004:  F4 tornado strikes Roanoke, IL as part of multiple long-lived supercells in northern and central IL
  • May 18, 20, & 23, 2004:  Multiple severe weather episodes across northern IL and northwest IN, including multiple F0 tornadoes 
  • April 20, 2004:  F3 tornado kills eight in Utica, IL in LaSalle County; one of many tornadoes (10th Anniversary)
  • July 27, 2003:  Damaging winds and heavy rain across the far southwest and southern suburbs
  • July 6, 2003:  Golf ball size hail in Buffalo Grove and Carol Stream, IL
  • July 5, 2003:  Widespread significant early morning wind damage from 100 mph winds across Rockford, IL including a downed TV tower
  • January 1-3, 1999: Major blizzard impacts the Midwest; second largest snowstorm on record for Chicago
  • July 17-18, 1996: A record 16.94" of rain in Aurora with excessive flooding across the Chicago suburbs
  • April 19, 1996: Largest tornado outbreak in Illinois including F2 in Zion, IL in Lake County
  • August 28, 1990:  Deadly F5 tornado strikes Plainfield, IL (25th Anniversary)
  • December 31, 1988: Fog rolls in off Lake MI during NFL game causing infamous Chicago Fog Bowl
  • April 21, 1967: One of the worst tornado outbreaks for northern IL with three F4s devastates Belvidere, Lake Zurich, & Oak Lawn, IL
  • January 26-27, 1967: Largest snowstorm on record for Chicago brings nearly two feet of snow & a blizzard
  • April 11, 1965: Palm Sunday Tornado Outbreak ravages six states including Crystal Lake, IL with F4 (50th Anniversary)
  • April 17, 1963: F4 tornado kills one and injures 70 in Kankakee, IL and Medaryville, IN
Tornadoes
  • May 17-18, 2017: Severe storms bring scattered intense damage & EF-1 tornado in Capron in Boone County
  • February 28, 2017: First February significant tornadoes in northern IL on record; EF-3 in Naplate & Ottawa, IL
  • August 9, 2016:  Weak landspout tornado on the southwest side of Chicago
  • July 17, 2016:  EF-1 near Cabery, IL in Ford County and 2 to 6" of rain
  • June 22, 2016:  Over a dozen tornadoes in northern IL, including an EF-2 near Marseilles to Seneca, IL & in Pontiac, IL
  • August 18, 2015: Severe thunderstorms and heavy rainfall; four confirmed brief EF-0 tornadoes
  • June 22, 2015:  Dozen tornadoes in northern IL including EF-3 in Coal City & EF-2 near Sublette, IL
  • June 15, 2015:  Widespread flooding across the western Chicago metro; EF-1 near Symerton, IL in Will County
  • April 9, 2015: Violent EF-4 strikes Rochelle area and Fairdale, IL
  • June 30, 2014: 30 total tornadoes across northern IL & northern IN within the second of two derechoes
  • November 17, 2013: Fourth largest tornado outbreak in Illinois including EF-4 in Washington, & second largest tornado outbreak in Indiana
  • May 6, 2012: EF-1 near Watseka, IL & Other Wind Damage in Iroquois County
  • May 25, 2011:Tornadoes in Eastern IL & northwest IN, including EF-2 near Mt. Ayr, IN
  • May 22, 2011: Numerous EF-1 tornadoes in northern IL & northwest IN
  • October 26, 2010: Multiple tornadoes across eastern IL & northwest IN, including EF-2 near Peotone, IL
  • June 5, 2010: Dozen tornadoes across Central & Eastern, IL, including two EF-3s near Streator, Dwight, & St. Anne
  • April 7, 2010: Brief EF-0 tornado near Forrest, IL in Livingston County
  • August 19, 2009: Tornadoes in Kane, Iroquois, and Porter Counties, including an EF-2 in Chesterton, IN
  • March 8, 2009: Two EF-1 tornadoes in Kankakee County & EF-0 in Livingston County
  • August 4-5, 2008: Five tornadoes across northeast IL & northwest IN, including EF-2 near Griffith, IN
  • June 13, 2008: EF-1 tornado near Belvidere, IL in Boone County at 12:30 a.m.
  • June 7, 2008: Eight tornadoes, including four EF-2s across Will County
  • January 7, 2008: Mid-winter EF-3 near Poplar Grove in Boone County into McHenry County
  • August 23, 2007: EF-1 in Winfield, IL in DuPage County & Severe Winds Into Chicago
  • May 16, 2007: EF-0 in Schaumburg in Cook County & nearby downbursts
  • 2006: Record yearly number of Illinois tornadoes
  • July 13, 2004: F4 tornado strikes Roanoke, IL as part of multiple long-lived supercells in northern and central IL
  • May 23, 2004: Multiple F0 tornadoes in Pontiac & Cullom, IL in Livingston County
  • April 20, 2004:  F3 tornado kills eight in Utica, IL in LaSalle County; one of many tornadoes (10th Anniversary)
  • April 19, 1996: Largest tornado outbreak in Illinois including F2 in Zion, IL in Lake County
  • August 28, 1990:  Deadly F5 tornado strikes Plainfield, IL (25th Anniversary)
  • April 21, 1967: One of the worst tornado outbreaks for northern IL with 3 F4s devastates Belvidere, Lake Zurich, & Oak Lawn, IL
  • April 11, 1965: Palm Sunday Tornado Outbreak ravages six states including Crystal Lake, IL with F4 (50th Anniversary)
  • April 17, 1963: F4 tornado kills one & injures 70 in Kankakee, IL and Medaryville, IN
Wind and/or Hail
  • May 17-18, 2017: Severe storms bring scattered intense damage and EF-1 tornado in Capron in Boone County
  • July 21-24, 2016: Humid and hot weather brings multiple days of storms, with scattered wind damage in Chicago and flash flooding in Belvidere
  • July 13, 2016:  Severe winds along and south of I-80 with a picturesque sky afterward
  • July 6, 2016:  Isolated wind damage and 2 to 3" of rain in north central IL
  • June 14-15, 2016: Heavy rainfall and scattered wind damage in north central IL
  • May 25, 2016: Isolated wind damage and locally heavy rainfall
  • April 25, 2016: Hail in far northeast IL including to golf ball size in Wauconda in Lake County
  • March 15, 2016: Early season storm brings hail across area, and tornadoes to northwest and central IL
  • August 10, 2015:  Severe microbust in Glen Ellyn, IL; the role of boundaries in severe weather
  • August 2, 2015:  Large hail in DeKalb, IL and damaging winds in Wood Dale and Evanston, IL
  • July 13, 2015: Scattered large hail, including 3.75" diameter hail in Marseilles, IL in LaSalle County
  • June 10, 2015:  Giant hail near Minooka, IL was largest in Illinois since at least 1961
  • June 8, 2015:  Many hail-producing storms, including up to golf ball size 
  • May 30, 2015:  Cold and windy with heavy rainfall & high waves
  • June 30, 2014: Widespread wind damage across northern IL & northern IN within the second of two derechoes
  • May 20, 2014: Baseball size hail in Chana, IL & damaging winds in DeKalb, IL
  • April 12, 2014: Large hail up to golf ball size in the north Chicago metro
  • July 20, 2013:  Large Hail Event with baseball sized hail across southern McHenry and northern Kane counties
  • July 10, 2013: Hail larger than golf balls in Essex, IL in Kankakee County
  • June 27, 2013: Supercell storm brings golf ball size hail and severe winds to Merrillville, IN in Lake County
  • June 24, 2013: Derecho brings widespread wind damage along with tornado in Lee County
  • May 19, 2013: Golf ball size hail in Pecatonica, IL & wind damage in Winnebago County
  • August 4, 2012: Severe wind producing complex of storms with thousands of lightning strikes crosses area
  • July 26, 2012: Downburst over O'Hare International Airport brings 70 mph gust
  • July 5, 2012: Microbursts in Cook County and over Merrillville & Gary, IN in Lake County
  • June 29, 2012: Microburst crosses directly over Doppler Radar in Romeoville, IL in Will County
  • July 11, 2011: Derecho brings widespread wind damage to northern IL, including six injuries in Palos Heights, IL
  • June 30, 2011: Supercell storm moves onshore from Lake MI bringing damaging winds and large hail to parts of Chicago
  • June 4, 2011: Damaging winds from severe storms across northwest IN
  • June 18, 2010: Two bow echoes with severe winds move across the area
  • June 14, 2010: Softball sized hail and microbursts in Benton County, IN
  • April 5, 2010: Severe winds and large hail, including up to baseball size, in Northern Cook County
  • June 19, 2009: Widespread hail, winds, and flooding across northern IL
  • May 13, 2009: Intense straight-line wind damage near Mt. Morris, IL in Ogle County
  • May 30, 2008: Severe storms, including tennis ball size hail in Manteno, IL in Kankakee County, along with a wake low
  • October 18, 2007: Golf ball size hail in Joliet, IL as part of large severe weather outbreak from MI to MS
  • July 25, 2007: Microbursts in Burr Ridge & Homer Glen, IL in Cook County
  • June 1, 2007: Damaging winds across Mendota, IL in LaSalle County in North Central IL
  • March 31, 2007: Microburst in Carol Stream & Glendale Heights, IL in DuPage County
  • October 2, 2006: Severe wind damage in Hickory Hills, Bridgeview, Manhattan, & Peotone in Cook & Will Counties
  • April 14, 2006: Baseball size hail near Milford, IL in Iroquois County & Remington, IN in Jasper County
  • July 13, 2004: Destructive large hail up to softball size near Sublette, IL in Lee County; F4 tornado strikes Roanoke, IL later
  • May 18 & 20, 2004: Multiple severe weather episodes across northern IL & northwest IN
  • July 27, 2003: Damaging winds & heavy rain across the far southwest & southern suburbs
  • July 6, 2003: Golf ball size hail in Buffalo Grove & Carol Stream, IL
  • July 5, 2003: Widespread significant early morning wind damage from 100 mph winds across Rockford, IL, including a downed local TV tower
Heavy Rain and/or Flooding
  • March 30, 2017: Heavy rainfall; wettest March calendar day in Chicago since 1948
  • August 29, 2016:  Isolated very heavy rainfall brings flooding in Belvidere, Mendota, and Triumph, IL
  • August 28, 2016:  Flash flooding from 4" to over 6" in Braceville and Odell, IL and near Hebron, IN
  • August 12-20, 2016:  Multiple 4+" rain episodes including in Dixon, Kankakee, Lowell, and Plainfield
  • July 29, 2016:  Flash flooding near the I-88 corridor including parts of the west and south Chicago metro
  • July 21-24, 2016: Humid and hot weather brings multiple days of storms, with scattered wind damage in Chicago and flash flooding in Belvidere
  • July 7, 2016:  Localized heavy rainfall in northeast IL & northwest IN causes spotty flooding
  • June 14-15, 2016: Heavy rainfall and scattered wind damage in north central IL
  • May 11-12, 2016: Heavy rainfall across north central IL brings isolated flooding
  • August 18, 2015: Severe thunderstorms bring heavy rainfall with over three inches in the Rockford area
  • June 2015:  A recap and rainfall totals of the extremely wet & active month
  • June 15, 2015:  Widespread flooding across the western Chicago metro from three to six inches of rain
  • June 13, 2015:  Heavy rain leads to closing of I-80 in LaSalle County, IL
  • June 7, 2015:  Flash flooding south of I-80 and two brief tornadoes in Jasper County of northwest IN
  • May 30, 2015:  Cold and windy with heavy rainfall & high waves
  • August 21-23, 2014: Multiple heavy rain events, including hourly rainfall measured near 4" in Burbank, IL & Dyer, IN
  • June 18-24, 2014: Several heavy rain events across northern IL & northwest IN, including over 5" in Lee County in one night, and 4" in Dwight, IL & Kouts, IN
  • April 17-18, 2013: Record 2-day April rainfall brings record flooding to parts of the Des Plaines, DuPage, Fox, & Vermillion Rivers
  • May 6, 2012: Widespread 2 to 4.50" of rain south of I-80 causes widespread flooding
  • July 23, 2011: Record setting daily rainfall in Chicago, part of the wettest July on record
  • July 22-24, 2010: Heavy rainfall episodes across the area, with over 8" in Rockford
  • August 7, 2007: Rainfall of 5 to 7" across Rockford and Belvidere lead to flash flooding
  • September 4, 2006: Up to seven and a half inches of rain cause Labor Day flooding in Rockford
  • July 17-18, 1996: A record 16.94" of rain in Aurora with excessive flooding across the Chicago suburbs
Snow and/or Ice
  • March 13-14, 2017: Rare, longer duration heavy lake effect snow into northeast IL brings 8-15"
  • February 24, 2016: Blizzard conditions in northwest IN and far eastern IL, with totals over a foot
  • December 28, 2015:  Sleet & freezing rain event brings likely daily sleet record for Chicago
  • November 20-21, 2015: Second largest November snowstorm on record for Rockford & Chicago; totals up to 18" near WI stateline
  • 2014-2015 Winter: Aggressive finish to winter, with one of the coldest Februarys on record
  • January 5-6, 2014: Nearly a foot of snow in Chicago was city's largest in three years; lake effect pounds northwest IN
  • 2012-2013 Winter: A record late start but aggressive finish to winter; a listing of events
  • February 10-11, 2012: Thundersnow and blizzard conditions observed in lake effect band in northwest IN
  • March 29, 2009: Snowfall across northeast IL, including over a half foot in the north Chicago metro
  • January 1-3, 1999: Major blizzard impacts the Midwest; second largest snowstorm on record for Chicago
  • January 26-27, 1967: Largest snowstorm on record for Chicago brings nearly two feet of snow and a blizzard
Extreme Temperatures
  • March 23-25, 2017: Sharp day-to-day temperature changes including a near-record one hour temperature drop
  • 2016 Autumn: One of the warmest autumn results in latest first autumn freeze on record for Rockford
  • July 21-24, 2016: Humid and hot weather with heat index readings of 100 to 115 and dew points to 80
  • April 3, 2016: Impressive single day temperature change; 5th largest on record in Rockford
  • December 2015:  Warmest winter month & December on record for Rockford; warmest December in Chicago in over 90 years
  • February 2015: Coldest February in Chicago since 1875; coldest month since 1983
  • January 5-7, 2014: Bitter cold air brings lowest daytime temperatures in nearly 20 years
  • May 14, 2013: Largest one day warm-up in May for Chicago and Rockford on record
  • Summer 2012: Top 3 warmest on record for Chicago and Rockford
  • July 4-7, 2012: Impressive heat wave brings warmest temp to Rockford in 76 years; to Chicago in 17
  • March 2012: Unprecedented warmth shatters March records
  • July 2009: Coolest July in Rockford on record; 7th in Chicago
High Wind Events
  • March 8, 2017: Strong non-thunderstorm wind gusts to 60 mph bring isolated damage
  • March 16, 2016: Strong non-thunderstorm winds across northern IL and northwest IN
  • October 31, 2014: Powerful autumn system brings strong winds resulting in minor damage in the Chicago area
  • October 29-30, 2012: Hurricane Sandy remnants bring high winds off of Lake MI resulting in minor damage in Porter County, IN
  • October 26, 2010: Record deep low pressure in the Midwest brings high winds to the area
Marine
  • September 12, 2015:  Early season lake effect rain showers bring waterspouts; science behind waterspouts
  • October 31, 2014:  Powerful autumn system brings strong winds and battering waves to IL and IN; flooding on Lake Shore Drive in Chicago
  • July 28, 2014: Near-record high waves and cold water temperatures for July observed across southern Lake MI
  • October 29-30, 2012: Remnants of Hurricane Sandy impact Lake MI with tropical storm force winds and high waves
  • December 31, 1988: Fog rolls in off Lake MI during NFL game causing infamous Chicago Fog Bowl
Studies
 

 


 

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Storm Events Datbase

Severe Storms Event Archive

Tornado Outbreak Interface

Tornado Tracks Tool

Winter Storms & Heavy Rain Events