noun

complete disorder and confusion.

snow caused chaos in the region

disorder,disarray,disorganization,confusion,mayhem,bedlam,pandemonium,madness,havoc,turmoil,tumult,commotion,disruption,upheaval,furore,frenzy,uproar,hue and cry,babel,hurly-burly,a maelstrom,a muddle,a mess,a shambles,a mare’s nest,anarchy,entropy,lawlessness,bangarang,hullabaloo,all hell broken loose,a madhouse,an omnishambles,a car crash,a three-ring circus