Loyd C. Sigmon (May 6, 1909 – June 2, 2004) was born in

Stigler, Oklahoma Stigler is a city in and county seat of Haskell County, Oklahoma. The population was 2,685 at the time of the 2010 census, down from 2,731 recorded in 2000. History At the time of its founding, Newman, later Stigler, was located in Sans Bois Co ...

to a

cattle Cattle (''Bos taurus'') are large, domesticated, cloven-hooved, herbivores. They are a prominent modern member of the subfamily Bovinae and the most widespread species of the genus ''Bos''. Adult females are referred to as cows and adult ma ...

ranch A ranch (from es, rancho/Mexican Spanish) is an area of land, including various structures, given primarily to ranching, the practice of raising grazing livestock such as cattle and sheep. It is a subtype of a farm. These terms are most ofte ...

ing family. He soon became interested in

radio Radio is the technology of signaling and communicating using radio waves. Radio waves are electromagnetic waves of frequency between 30 hertz (Hz) and 300 gigahertz (GHz). They are generated by an electronic device called a transmi ...

, earning his amateur ("ham") radio license at age 14. His broadcasting career began in 1932 at the Boston Short Wave and Television Laboratories. In 1941 he was hired as an engineer for MacMillan Petroleum Company's flagship radio station,

KMPC KMPC (1540 AM, "Radio Korea", 라디오코리아) is a commercial radio station in Los Angeles, California. It is owned by P&Y Broadcasting Corporation. Radio Korea is a division of the Radio Korea Media Group. The station airs Korean– ...

, in

Los Angeles, California Los Angeles ( ; es, Los Ángeles, link=no , ), often referred to by its initials L.A., is the largest city in the state of California and the second most populous city in the United States after New York City, as well as one of the world' ...

. That job was interrupted by

World War II World War II or the Second World War, often abbreviated as WWII or WW2, was a world war that lasted from 1939 to 1945. It involved the vast majority of the world's countries—including all of the great powers—forming two opposing ...

; he served in the

United States Army The United States Army (USA) is the land warfare, land military branch, service branch of the United States Armed Forces. It is one of the eight Uniformed services of the United States, U.S. uniformed services, and is designated as the Army o ...

Signal Corps on

General A general officer is an officer of high rank in the armies, and in some nations' air forces, space forces, and marines or naval infantry. In some usages the term "general officer" refers to a rank above colonel."general, adj. and n.". OED ...

Dwight D. Eisenhower Dwight David "Ike" Eisenhower (born David Dwight Eisenhower; ; October 14, 1890 – March 28, 1969) was an American military officer and statesman who served as the 34th president of the United States from 1953 to 1961. During World War II, ...

's staff. Sigmon resumed his job in Los Angeles after the war, rising to the position of

Executive Vice President A vice president, also director in British English, is an officer in government or business who is below the president (chief executive officer) in rank. It can also refer to executive vice presidents, signifying that the vice president is on ...

with Gene Autry's Golden West Broadcasters, which owned eight radio and two television stations on the west coast, including KMPC. In 1955, Sigmon invented a specialized radio and tape recorder that the

Los Angeles Police Department The Los Angeles Police Department (LAPD), officially known as the City of Los Angeles Police Department, is the municipal police department of Los Angeles, California. With 9,974 police officers and 3,000 civilian staff, it is the third-large ...

used to alert radio stations throughout the city to traffic conditions and emergencies. The messages were referred to as "Sigmon traffic alerts," a phrase quickly shortened to "

Sig Alert Sig alert, Sig-alert or Sigalert in California, as well as other parts of the United States, means an incident that significantly disrupts road traffic. The term was originally the name of a pioneering system of automated radio broadcasts regarding ...

." The system, now employed throughout

California California is a state in the Western United States, located along the Pacific Coast. With nearly 39.2million residents across a total area of approximately , it is the most populous U.S. state and the 3rd largest by area. It is also the m ...

, has been copied in numerous other areas. For this,

Bill Keene Bill Keene (1927 – April 5, 2000) was a television and radio personality who became famous in the Los Angeles, California market as a traffic and weather announcer. He was particularly known for his colorful humorous traffic reports which inclu ...

called him the "father of L.A. traffic reporting". Loyd Sigmon received recognition and honors from local and state government agencies, the National Safety Council, and broadcasting and radio organizations. In 1998, when the

California Department of Transportation The California Department of Transportation (Caltrans) is an executive department of the U.S. state of California. The department is part of the cabinet-level California State Transportation Agency (CalSTA). Caltrans is headquartered in Sacr ...

(Caltrans) and the

California Highway Patrol The California Highway Patrol (CHP) is a state law enforcement agency of the U.S. state of California. The CHP has primary patrol jurisdiction over all California highways and roads and streets outside city limits, and can exercise law enforcem ...

opened their Freeway Traffic Center in Los Angeles, Sigmon attended as their special Guest of Honor. He was quoted in the ''

Los Angeles Times The ''Los Angeles Times'' (abbreviated as ''LA Times'') is a daily newspaper that started publishing in Los Angeles in 1881. Based in the LA-adjacent suburb of El Segundo since 2018, it is the sixth-largest newspaper by circulation in the U ...

'' as saying, "I ran a multimillion-dollar corporation, but it's the Sig Alert that people remember me for." Sigmon kept his amateur radio license, W6LQ, current even after retiring to Oklahoma. Sigmon died in an assisted living facility in

Bartlesville, Oklahoma Bartlesville is a city mostly in Washington County in the U.S. state of Oklahoma. The population was 37,290 at the 2020 census. Bartlesville is north of Tulsa and south of the Kansas border. It is the county seat of Washington County. The Ca ...

after suffering from

Parkinson's disease Parkinson's disease (PD), or simply Parkinson's, is a long-term degenerative disorder of the central nervous system that mainly affects the motor system. The symptoms usually emerge slowly, and as the disease worsens, non-motor symptoms becom ...

. Sigmon and his wife Pat (stage name: Patricia Lee) had a home in Palm Springs, California in the late 1950s.

References

{{DEFAULTSORT:Sigmon, Loyd C. 1909 births 2004 deaths People from Stigler, Oklahoma Amateur radio people Neurological disease deaths in Oklahoma Deaths from Parkinson's disease