Warning flagged the rise of post-2000 wave of traditional doom metal. The band was founded by guitarist/singer/songwriter Patrick Walker in 1994 in Harlow, essex, England, United Kingdom.
Warning's music is notable for its down-tempo, progressive, melodic and heavy doom-laden sound; the idiosyncratic and poignant vocals of Patrick Walker; and his introspective, darkly-confessional lyrical themes.