These winds propel dust from Africa across the Atlantic Ocean At mid-latitudes, prevailing westerlies
travel from west to east while blowing toward Earth's poles.
The park's location in northwestern Virginia puts it directly downwind of the prevailing westerlies
that carry in dirty air from the heavily industrialized Ohio Valley.
As a bonus, the open door serves to blockthe prevailing westerlies
off the Carquinez Strait.
``There are a number planted along the roadside, which is partially sheltered from the prevailing westerlies
,but I think this is the earliest I have seen them,''he explains.
Carried in by the prevailing westerlies
, the bombs were meant to descend on the forests of the Coast Range and even the Sierra-Cascades.