Foehn wind 3) Mechanical mixing: When river water passes over rocks, turbulence is generated in the form of rapids, and white water reveals the turbulent mixing of the water with the air above. Similarly, as air passes over mountains, turbulence occurs and the atmosphere is mixed in the vertical. This mixing generally leads to a downward warming and upward moistening of the cross-mountain airflow, and consequently to warmer, drier foehn winds in the valleys downwind. 4) Radiative warming: Dry foehn conditions are responsible for the occurrence of rain shadows in the lee of mountains, where clear, sunny conditions prevail. This often leads
Weather insurance also taken into consideration. If a car dealership wanted to insure a conditional weather promotion in which new car buyers would receive a rebate if at least 2 inches of rain fell at their location on the day after Easter, the client would need to contact the insurance company about two weeks prior to the peril date. The insurer, in turn, would price the insurance policy based on weather history for that city and state on the date that is being "insured", the type of peril being covered, and the volume of sales expected during the promotion. Weather insurance Weather