Heat Haze (CR 2)

This hazard occurs in areas where the air close to the surface of the ground is heated to a significantly higher temperature than the air above it. Creatures beyond 30 feet appear indistinct, as though affected by blur, and they gain concealment against ranged attacks. Effects and abilities that would allow a character to ignore this concealment, such as blindsight and true seeing, negate this effect. Heat haze has no effect on navigation and cannot be disbelieved.