In One Forecast, West of San Francisco, the Flow Is

Multiple Choice

In one forecast, west of San Francisco, the flow is meridional with a cut-off warm, upper high situated just south of Alaska. To the south, both east and west of the high are troughs. Because the shape of this flow around the high resembles a Greek letter, the high and its accompanying ridge are known by this Greek letter; that is, as a(n) ____ high.

A) theta
B) gamma
C) omega
D) beta
E) alpha