Abstract: A portable traffic warning light is disclosed having a lower base containing a power supply (e.g., a battery or battery pack), a lens housing including a number of electric lamps and lenses cooperable therewith which, when the lamps are energized, flash and/or display a warning message, and a pair of adjustable height columns supporting the lens housing on the base and permitting the height of the lens housing to be adjusted so as to permit ease of viewing by oncoming traffic under a variety of traffic situations.