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National Weather Service Chicago, currently based in
Romeoville, Illinois Romeoville is a village in Will County, Illinois, United States. The village is located southwest of Chicago on the Des Plaines River. Per the 2020 census, the population was 39,863. It is located in the southwest suburban area of Chicago near ...
, is a weather forecast office responsible for monitoring weather conditions for 23 counties in
Northern Illinois Northern Illinois is a region generally covering the northern third of the U.S. state of Illinois. The region is by far the most populous of Illinois with nearly 9.7 million residents as of 2010. Economics Northern Illinois is dominated by t ...
, the
Chicago metropolitan area The Chicago metropolitan area, also colloquially referred to as Chicagoland, is a metropolitan area in the Midwestern United States. Encompassing 10,286 sq mi (28,120 km2), the metropolitan area includes the city of Chicago, its suburbs and h ...
and
Northwest Indiana Northwest Indiana, nicknamed The Region after the Calumet Region, comprises Lake, Porter, LaPorte, Newton and Jasper counties in Indiana. This region neighbors Lake Michigan and is part of the Chicago metropolitan area. According to the 2020 ...
. The Army Signal Service established the first federal weather office in the region in
Chicago (''City in a Garden''); I Will , image_map = , map_caption = Interactive Map of Chicago , coordinates = , coordinates_footnotes = , subdivision_type = Country , subdivision_name ...
on October 15, 1870. During May 1894 the Chicago Weather Bureau was given a new forecast area extending from the
Great Lakes The Great Lakes, also called the Great Lakes of North America, are a series of large interconnected freshwater lakes in the mid-east region of North America that connect to the Atlantic Ocean via the Saint Lawrence River. There are five lak ...
region all the way to the
Rocky Mountains The Rocky Mountains, also known as the Rockies, are a major mountain range and the largest mountain system in North America. The Rocky Mountains stretch in straight-line distance from the northernmost part of western Canada, to New Mexico ...
. The current National Weather Service Chicago is located in Romeoville and is in charge of issuing local forecasts and weather warnings for the
Chicago area The Chicago metropolitan area, also colloquially referred to as Chicagoland, is a metropolitan area in the Midwestern United States. Encompassing 10,286 sq mi (28,120 km2), the metropolitan area includes the city of Chicago, its suburbs and hi ...
. It is one of only two National Weather Service offices in Illinois, the other being National Weather Service Central Illinois in
Lincoln, Illinois Lincoln is a city in Logan County, Illinois, United States. First settled in the 1830s, it is the only town in the United States that was named for Abraham Lincoln before he became president; he practiced law there from 1847 to 1859. Lincoln is h ...
. The National Weather Service Chicago forecast office is located adjacent to the Lewis University Airport in
Romeoville, Illinois Romeoville is a village in Will County, Illinois, United States. The village is located southwest of Chicago on the Des Plaines River. Per the 2020 census, the population was 39,863. It is located in the southwest suburban area of Chicago near ...
.


NOAA Weather Radio

National Weather Service Chicago Forecast Office in Romeoville, Illinois, currently provides programming for 11
NOAA Weather Radio NOAA Weather Radio NWR; also known as NOAA Weather Radio All Hazards is an automated 24-hour network of VHF FM weather radio stations in the United States (U.S.) that broadcast weather information directly from a nearby National Weather Servi ...
stations.


KWO39 Chicago

KWO39 regular programming serves marine interests on southern Lake Michigan and the Illinois and Indiana lake-shore. KWO39 also carries severe weather watches and warnings for
Cook Cook or The Cook may refer to: Food preparation * Cooking, the preparation of food * Cook (domestic worker), a household staff member who prepares food * Cook (professional), an individual who prepares food for consumption in the food industry * ...
, DuPage, and
Lake A lake is an area filled with water, localized in a basin, surrounded by land, and distinct from any river or other outlet that serves to feed or drain the lake. Lakes lie on land and are not part of the ocean, although, like the much large ...
counties in
Illinois Illinois ( ) is a state in the Midwestern United States. Its largest metropolitan areas include the Chicago metropolitan area, and the Metro East section, of Greater St. Louis. Other smaller metropolitan areas include, Peoria and Rockf ...
, plus
Lake A lake is an area filled with water, localized in a basin, surrounded by land, and distinct from any river or other outlet that serves to feed or drain the lake. Lakes lie on land and are not part of the ocean, although, like the much large ...
and
Porter Porter may refer to: Companies * Porter Airlines, Canadian regional airline based in Toronto * Porter Chemical Company, a defunct U.S. toy manufacturer of chemistry sets * Porter Motor Company, defunct U.S. car manufacturer * H.K. Porter, Inc., ...
counties in
Indiana Indiana () is a U.S. state in the Midwestern United States. It is the 38th-largest by area and the 17th-most populous of the 50 States. Its capital and largest city is Indianapolis. Indiana was admitted to the United States as the 19th s ...
.


History

This station first began in 1954 as the first weather radio system in the Chicago area dedicated to the
aviation Aviation includes the activities surrounding mechanical flight and the aircraft industry. ''Aircraft'' includes fixed-wing and rotary-wing types, morphable wings, wing-less lifting bodies, as well as lighter-than-air craft such as hot a ...
user and continued until 1958 when the aviation broadcast went
dark Darkness, the direct opposite of lightness, is defined as a lack of illumination, an absence of visible light, or a surface that absorbs light, such as black or brown. Human vision is unable to distinguish colors in conditions of very low lu ...
. Ivan Brunk, meteorologist in charge of the Chicago U.S. Weather Bureau (now National Weather Service) office at that time, suggested that the radio service be reinstated and put to Marine usage on an experimental basis. The marine weather broadcast was an immediate success, and the service became permanent two years later. Throughout the 1960s, programming was expanded to include
weather Weather is the state of the atmosphere, describing for example the degree to which it is hot or cold, wet or dry, calm or stormy, clear or cloud cover, cloudy. On Earth, most weather phenomena occur in the lowest layer of the planet's atmos ...
information for the general public, as well as the marine community. In the early 1970s, the forecast office moved from the
University of Chicago The University of Chicago (UChicago, Chicago, U of C, or UChi) is a private university, private research university in Chicago, Illinois. Its main campus is located in Chicago's Hyde Park, Chicago, Hyde Park neighborhood. The University of Chic ...
to a location on West Pershing Rd. The 300 watt transmitter was located on the roof of the six-story building where it remained until 1975 when the transmitter was relocated to the Sears Tower (now
Willis Tower The Willis Tower (originally the Sears Tower) is a 108- story, skyscraper in the Loop community area of Chicago in Illinois, United States. Designed by architect Bruce Graham and engineer Fazlur Rahman Khan of Skidmore, Owings & Merrill (SOM ...
).


KZZ81 Lockport

KZZ81 broadcasts weather and hazard information for
Cook Cook or The Cook may refer to: Food preparation * Cooking, the preparation of food * Cook (domestic worker), a household staff member who prepares food * Cook (professional), an individual who prepares food for consumption in the food industry * ...
, DuPage, Grundy, Kane, Kankakee, Kendall,
Lake A lake is an area filled with water, localized in a basin, surrounded by land, and distinct from any river or other outlet that serves to feed or drain the lake. Lakes lie on land and are not part of the ocean, although, like the much large ...
, & Will counties in
Illinois Illinois ( ) is a state in the Midwestern United States. Its largest metropolitan areas include the Chicago metropolitan area, and the Metro East section, of Greater St. Louis. Other smaller metropolitan areas include, Peoria and Rockf ...
as well as Lake County in
Indiana Indiana () is a U.S. state in the Midwestern United States. It is the 38th-largest by area and the 17th-most populous of the 50 States. Its capital and largest city is Indianapolis. Indiana was admitted to the United States as the 19th s ...
. Hourly conditions on this station are reported for the following locations:
O'Hare Airport Chicago O'Hare International Airport , sometimes referred to as, Chicago O'Hare, or simply O'Hare, is the main international airport serving Chicago, Illinois, located on the city's Northwest Side, approximately northwest of the Loop busines ...
, The Lakefront, Joliet,
Aurora An aurora (plural: auroras or aurorae), also commonly known as the polar lights, is a natural light display in Earth's sky, predominantly seen in high-latitude regions (around the Arctic and Antarctic). Auroras display dynamic patterns of bri ...
,
Waukegan, Illinois ''(Fortress or Trading Post)'' , image_flag = , image_seal = , blank_emblem_size = 150 , blank_emblem_type = Logo , subdivision_type = Country , subdivision_type1 = State , subdivisi ...
, Springfield, Bloomington, Midway Airport, Rockford, Kankakee.


KXI41 Crystal Lake

KXI41 broadcasts weather and hazard information for Boone,
Cook Cook or The Cook may refer to: Food preparation * Cooking, the preparation of food * Cook (domestic worker), a household staff member who prepares food * Cook (professional), an individual who prepares food for consumption in the food industry * ...
, Kane,
Lake A lake is an area filled with water, localized in a basin, surrounded by land, and distinct from any river or other outlet that serves to feed or drain the lake. Lakes lie on land and are not part of the ocean, although, like the much large ...
, & McHenry counties in
Illinois Illinois ( ) is a state in the Midwestern United States. Its largest metropolitan areas include the Chicago metropolitan area, and the Metro East section, of Greater St. Louis. Other smaller metropolitan areas include, Peoria and Rockf ...
, plus
Kenosha Kenosha () is a city in the U.S. state of Wisconsin and the seat of Kenosha County. Per the 2020 census, the population was 99,986 which made it the fourth-largest city in Wisconsin. Situated on the southwestern shore of Lake Michigan, Kenosh ...
&
Walworth Walworth () is a district of south London, England, within the London Borough of Southwark. It adjoins Camberwell to the south and Elephant and Castle to the north, and is south-east of Charing Cross. Major streets in Walworth include the Old ...
counties in
Wisconsin Wisconsin () is a state in the upper Midwestern United States. Wisconsin is the 25th-largest state by total area and the 20th-most populous. It is bordered by Minnesota to the west, Iowa to the southwest, Illinois to the south, Lake M ...
.


KXI58 Plano

KXI58 broadcasts weather and hazard information for
DeKalb DeKalb or De Kalb may refer to: People * Baron Johann de Kalb (1721–1780), major general in the American Revolutionary War Places Municipalities in the United States * DeKalb, Illinois, the largest city in the United States named DeKalb **DeKal ...
, DuPage, Grundy, Kane, Kendall, LaSalle, & Will counties in
Illinois Illinois ( ) is a state in the Midwestern United States. Its largest metropolitan areas include the Chicago metropolitan area, and the Metro East section, of Greater St. Louis. Other smaller metropolitan areas include, Peoria and Rockf ...
.


KZZ57 Rockford

KZZ57 broadcasts weather and hazard information for Winnebago, Boone,
Ogle Ogle may refer to: Places * Ogle County, Illinois, United States * Original name of Ashton, Illinois, a village * Ogle, Kentucky, United States, an unincorporated community * Ogle Township, Somerset County, Pennsylvania, United States * Ogle, N ...
,
DeKalb DeKalb or De Kalb may refer to: People * Baron Johann de Kalb (1721–1780), major general in the American Revolutionary War Places Municipalities in the United States * DeKalb, Illinois, the largest city in the United States named DeKalb **DeKal ...
, Lee & Stephenson counties in
Illinois Illinois ( ) is a state in the Midwestern United States. Its largest metropolitan areas include the Chicago metropolitan area, and the Metro East section, of Greater St. Louis. Other smaller metropolitan areas include, Peoria and Rockf ...
, plus
Green Green is the color between cyan and yellow on the visible spectrum. It is evoked by light which has a dominant wavelength of roughly 495570 nm. In subtractive color systems, used in painting and color printing, it is created by a combi ...
&
Rock Rock most often refers to: * Rock (geology), a naturally occurring solid aggregate of minerals or mineraloids * Rock music, a genre of popular music Rock or Rocks may also refer to: Places United Kingdom * Rock, Caerphilly, a location in Wales ...
counties in
Wisconsin Wisconsin () is a state in the upper Midwestern United States. Wisconsin is the 25th-largest state by total area and the 20th-most populous. It is bordered by Minnesota to the west, Iowa to the southwest, Illinois to the south, Lake M ...
.KZZ57 Rockford, 162.475 MHz
NOAA.gov. Accessed August 24, 2012 Programming for most counties is provided from the National Weather Service Chicago Forecast Office in
Romeoville, Illinois Romeoville is a village in Will County, Illinois, United States. The village is located southwest of Chicago on the Des Plaines River. Per the 2020 census, the population was 39,863. It is located in the southwest suburban area of Chicago near ...
, with warnings for Stephenson County being issued by the National Weather Service office in Davenport, Iowa, and Green and Rock counties in Wisconsin being issued by the National Weather Service office in
Milwaukee, Wisconsin Milwaukee ( ), officially the City of Milwaukee, is both the most populous and most densely populated city in the U.S. state of Wisconsin and the county seat of Milwaukee County, Wisconsin, Milwaukee County. With a population of 577,222 at th ...
.


WXK24 Odell

WXK24 broadcasts weather and hazard information for LaSalle, Grundy, Livingston,
Ford Ford commonly refers to: * Ford Motor Company, an automobile manufacturer founded by Henry Ford * Ford (crossing), a shallow crossing on a river Ford may also refer to: Ford Motor Company * Henry Ford, founder of the Ford Motor Company * Ford F ...
, Will, Kankakee,
Iroquois The Iroquois ( or ), officially the Haudenosaunee ( meaning "people of the longhouse"), are an Iroquoian-speaking confederacy of First Nations peoples in northeast North America/ Turtle Island. They were known during the colonial years to ...
,
Marshall Marshall may refer to: Places Australia * Marshall, Victoria, a suburb of Geelong, Victoria Canada * Marshall, Saskatchewan * The Marshall, a mountain in British Columbia Liberia * Marshall, Liberia Marshall Islands * Marshall Islands, an i ...
,
Woodford Woodford may refer to: Places Australia *Woodford, New South Wales *Woodford, Queensland, a town in the Moreton Bay Region *Woodford, Victoria Canada * Woodford, Ontario England *Woodford, Cornwall * Woodford, Gloucestershire *Woodford, Greate ...
&
McLean MacLean, also spelt Maclean and McLean, is a Goidelic languages, Gaelic surname Mac Gille Eathain, or, Mac Giolla Eóin in Irish language, Irish Gaelic), Eóin being a Gaelic form of Johannes (John (given name), John). The clan surname is an A ...
counties in
Illinois Illinois ( ) is a state in the Midwestern United States. Its largest metropolitan areas include the Chicago metropolitan area, and the Metro East section, of Greater St. Louis. Other smaller metropolitan areas include, Peoria and Rockf ...
.WXK24 Odell, 162.450 MHz
NOAA.gov. Accessed August 24, 2012 Programming for most counties is provided from the National Weather Service Chicago Forecast Office in
Romeoville, Illinois Romeoville is a village in Will County, Illinois, United States. The village is located southwest of Chicago on the Des Plaines River. Per the 2020 census, the population was 39,863. It is located in the southwest suburban area of Chicago near ...
, with warnings for Marshall, Woodford, and McLean Counties being issued by the National Weather Service Central Illinois located in
Lincoln, Illinois Lincoln is a city in Logan County, Illinois, United States. First settled in the 1830s, it is the only town in the United States that was named for Abraham Lincoln before he became president; he practiced law there from 1847 to 1859. Lincoln is h ...
.


WNG536 DeKalb

WNG536 broadcasts weather and hazard information for
DeKalb DeKalb or De Kalb may refer to: People * Baron Johann de Kalb (1721–1780), major general in the American Revolutionary War Places Municipalities in the United States * DeKalb, Illinois, the largest city in the United States named DeKalb **DeKal ...
, Boone, Winnebago,
Ogle Ogle may refer to: Places * Ogle County, Illinois, United States * Original name of Ashton, Illinois, a village * Ogle, Kentucky, United States, an unincorporated community * Ogle Township, Somerset County, Pennsylvania, United States * Ogle, N ...
, Lee & Kane counties in
Illinois Illinois ( ) is a state in the Midwestern United States. Its largest metropolitan areas include the Chicago metropolitan area, and the Metro East section, of Greater St. Louis. Other smaller metropolitan areas include, Peoria and Rockf ...
.WNG536 DeKalb, 162.550 MHz
NOAA.gov. Accessed August 24, 2012


KXI86 Crescent City

KXI86 broadcasts weather and hazard information for
Ford Ford commonly refers to: * Ford Motor Company, an automobile manufacturer founded by Henry Ford * Ford (crossing), a shallow crossing on a river Ford may also refer to: Ford Motor Company * Henry Ford, founder of the Ford Motor Company * Ford F ...
, Kankakee,
Iroquois The Iroquois ( or ), officially the Haudenosaunee ( meaning "people of the longhouse"), are an Iroquoian-speaking confederacy of First Nations peoples in northeast North America/ Turtle Island. They were known during the colonial years to ...
, &
Vermilion Vermilion (sometimes vermillion) is a color, color family, and pigment most often made, since antiquity until the 19th century, from the powdered mineral cinnabar (a form of mercury sulfide, which is toxic) and its corresponding color. It i ...
Counties in
Illinois Illinois ( ) is a state in the Midwestern United States. Its largest metropolitan areas include the Chicago metropolitan area, and the Metro East section, of Greater St. Louis. Other smaller metropolitan areas include, Peoria and Rockf ...
, as well as Newton & Benton Counties in
Indiana Indiana () is a U.S. state in the Midwestern United States. It is the 38th-largest by area and the 17th-most populous of the 50 States. Its capital and largest city is Indianapolis. Indiana was admitted to the United States as the 19th s ...
.KXI86 Crescent City, 162.500 MHz
NOAA.gov. Accessed August 24, 2012 Programming for most counties is provided from the National Weather Service Chicago Forecast Office in
Romeoville, Illinois Romeoville is a village in Will County, Illinois, United States. The village is located southwest of Chicago on the Des Plaines River. Per the 2020 census, the population was 39,863. It is located in the southwest suburban area of Chicago near ...
, with warnings for Vermilion County being issued by the National Weather Service Central Illinois located in
Lincoln, Illinois Lincoln is a city in Logan County, Illinois, United States. First settled in the 1830s, it is the only town in the United States that was named for Abraham Lincoln before he became president; he practiced law there from 1847 to 1859. Lincoln is h ...
.


KZZ55 Dixon

KZZ55 broadcasts weather and hazard information for
Ogle Ogle may refer to: Places * Ogle County, Illinois, United States * Original name of Ashton, Illinois, a village * Ogle, Kentucky, United States, an unincorporated community * Ogle Township, Somerset County, Pennsylvania, United States * Ogle, N ...
, Lee, Carroll,
Whiteside Whiteside may refer to: Places ;Australia * Whiteside, Queensland, suburb in the Moreton Bay Region, Queensland ;Canada * Whiteside, Nova Scotia ;United Kingdom * Whiteside (Lake District), a fell in the west of the English Lake District * White ...
&
Bureau Bureau ( ) may refer to: Agencies and organizations * Government agency *Public administration * News bureau, an office for gathering or distributing news, generally for a given geographical location * Bureau (European Parliament), the administra ...
Counties in
Illinois Illinois ( ) is a state in the Midwestern United States. Its largest metropolitan areas include the Chicago metropolitan area, and the Metro East section, of Greater St. Louis. Other smaller metropolitan areas include, Peoria and Rockf ...
.KZZ55 Dixon, 162.525 MHz
NOAA.gov. Accessed August 24, 2012 Programming for Ogle and Lee counties is provided from the National Weather Service Chicago Forecast Office in
Romeoville, Illinois Romeoville is a village in Will County, Illinois, United States. The village is located southwest of Chicago on the Des Plaines River. Per the 2020 census, the population was 39,863. It is located in the southwest suburban area of Chicago near ...
, with warnings for Carroll Whiteside & Bureau counties being issued by the National Weather Service office located in Davenport, Iowa.


KZZ58 Kankakee

KZZ58 broadcasts weather and hazard information for Kankakee,
Iroquois The Iroquois ( or ), officially the Haudenosaunee ( meaning "people of the longhouse"), are an Iroquoian-speaking confederacy of First Nations peoples in northeast North America/ Turtle Island. They were known during the colonial years to ...
& Will Counties in
Illinois Illinois ( ) is a state in the Midwestern United States. Its largest metropolitan areas include the Chicago metropolitan area, and the Metro East section, of Greater St. Louis. Other smaller metropolitan areas include, Peoria and Rockf ...
, as well as Newton &
Lake A lake is an area filled with water, localized in a basin, surrounded by land, and distinct from any river or other outlet that serves to feed or drain the lake. Lakes lie on land and are not part of the ocean, although, like the much large ...
Counties in
Indiana Indiana () is a U.S. state in the Midwestern United States. It is the 38th-largest by area and the 17th-most populous of the 50 States. Its capital and largest city is Indianapolis. Indiana was admitted to the United States as the 19th s ...
.


WNG689 Hebron

WNG689 broadcasts weather and hazard information for
Lake A lake is an area filled with water, localized in a basin, surrounded by land, and distinct from any river or other outlet that serves to feed or drain the lake. Lakes lie on land and are not part of the ocean, although, like the much large ...
,
Porter Porter may refer to: Companies * Porter Airlines, Canadian regional airline based in Toronto * Porter Chemical Company, a defunct U.S. toy manufacturer of chemistry sets * Porter Motor Company, defunct U.S. car manufacturer * H.K. Porter, Inc., ...
, Newton,
Jasper Jasper, an aggregate of microgranular quartz and/or cryptocrystalline chalcedony and other mineral phases,Kostov, R. I. 2010. Review on the mineralogical systematics of jasper and related rocks. – Archaeometry Workshop, 7, 3, 209-213PDF/ref> ...
, LaPorte, Starke & Pulaski Counties in
Indiana Indiana () is a U.S. state in the Midwestern United States. It is the 38th-largest by area and the 17th-most populous of the 50 States. Its capital and largest city is Indianapolis. Indiana was admitted to the United States as the 19th s ...
.WNG 689 Hebron, 162.450 MHz
NOAA.gov. Accessed August 24, 2012 Programming for most counties is provided from the National Weather Service Chicago Forecast Office in
Romeoville, Illinois Romeoville is a village in Will County, Illinois, United States. The village is located southwest of Chicago on the Des Plaines River. Per the 2020 census, the population was 39,863. It is located in the southwest suburban area of Chicago near ...
, with warnings for LaPorte, Starke, and Pulaski Counties being issued by the National Weather Service Northern Indiana located in
Syracuse, Indiana Syracuse is a town in Turkey Creek Township, Kosciusko County, in the U.S. state of Indiana. The population was 3,079 at the 2020 census. Syracuse is the location of Lake Syracuse and the nearby, larger Lake Wawasee, in addition to several othe ...
.


First-order/climate sites

* O'Hare International Airport (Chicago) *
Chicago Rockford International Airport Chicago Rockford International Airport , typically referred to as Rockford International Airport, Chicago Rockford, or by its IATA call letters, RFD, is a commercial airport in Rockford, Illinois, located northwest of Chicago., effective April 26 ...
(Rockford)


References


External links


NWS Chicago Main PageNOAA Weather Radio Coverage Maps
{{List of National Weather Service Weather Forecast Offices
Chicago, Illinois (''City in a Garden''); I Will , image_map = , map_caption = Interactive Map of Chicago , coordinates = , coordinates_footnotes = , subdivision_type = Country , subdivision_name ...
Radio stations in Illinois