It's well known that the Great Lakes produce large amounts of precipitation in the Fall. When cold polar air moves over the lakes it causes large amounts of relatively warm moist air to rise, condense and fall as either rain or snow on shore.
Under which conditions would you expect to find the MOST precipitation?
- A polar air mass of 0 degrees centigrade moving over a great lake that has a water temperature of 10 degrees.
OR
- A polar air mass of -5 degrees centigrade moving over a great lake that has a water temperature of 5 degrees.