Idaho Statutes Title 49. Motor Vehicles § 49-804. Flashing signals

(a) Flashing red (stop signal). When a red lens is illuminated with rapid intermittent flashes, a driver shall stop at a clearly marked limit line, but if none before entering the crosswalk on the near side of the intersection, or if none then at the point nearest the intersecting highway where the driver has a view of approaching traffic on the intersecting highway before entering it, and the driver may proceed subject to the rules applicable after making a stop at a stop sign.

(b) Flashing yellow (caution signal). When a yellow lens is illuminated with rapid intermittent flashes, a driver may proceed through the intersection or past the signal only with caution.