Lake Ontario is located between the state of New York and Ontario. On a spring day southeasterly winds are advecting air across Lake Ontario from Rochester, NY to Toronto, ON. The atmospheric pressure across the region is 1030 mb and air density is 1.22 kg m-3. a) The temperature at the shore of Lake Ontario in Rochester is 18.5 degrees C. and the relative humidity is 72%. Determine the actual vapour pressure in Rochester. b) Data indicates that the air temperature is 22 degrees C. and the wet bulb temperature is 17 degrees C. Determine the current vapour pressure and relative humidity at this location