Problem: Select the correct statement(s) about lenticular clouds. Lenticular or lens-shaped clouds indicate unstable air with severe turbulence. If the lenticular or lens-shaped clouds are stationary it would indicate an area of no wind. Lenticular or lens-shaped clouds indicate the crest of a mountain wave and may contain winds in excess of 50 knots, with severe turbulence in the rotor area below the lenticular. Need Assignment Help?