Abstract: A warning light and sign apparatus includes a handle assembly which includes a top end and a bottom end. A sign-receiving bracket assembly is supported by the top end of the handle assembly. A bracket-supported light assembly is supported by sign-receiving bracket assembly. A power supply assembly is supported by the handle assembly and is electrically connected to the bracket-supported light assembly. A sign is received by the sign-receiving bracket assembly. The sign includes a first message "stop" on a first side and includes a second message "slow" on a second side. The handle assembly can be easily rotated 180 to selectively orient either the "stop" message or the "slow" message. Removable sign-to-light fasteners connect the sign to the bracket-supported light assembly. The sign-receiving bracket assembly includes a front bracket portion and a rear bracket portion, and a bottom portion of the sign is received between the front bracket portion and the rear bracket portion.