You are on a boat in a fiord in Glacier Bay,Alaska.It is a clear sunny day with temperatures near 20°C with no wind.Within 5 minutes the sky is still clear but the wind is blowing at 30 knots down valley,the sea is filled with whitecaps,and the temperature drops to 5°C.What just happened?
A)You experienced a Chinook wind.
B)You experienced a valley wind,caused by cold air spilling off an ice cap down the valley.
C)You experienced an afternoon sea breeze,blowing cold air off the ocean.
D)A storm front must have passed.

Question

Quizplus · Accepted Answer

The sudden change in wind speed and temperature suggests that the boat experienced a valley wind. This occurs when cold air spills off an ice cap down the valley and displaces warmer air. The clear and sunny weather before the wind change rules out options A, C, and D.

You Are on a Boat in a Fiord in Glacier