The Warm Side and Storm 12 (Weather)

It's 55 degrees Fahrenheit in Billings, Montana right now. It's 1 degree Fahrenheit in Fargo, North Dakota right now. Fargo is on the cold side of the high pressure system in the middle of the plains right now, and Billings is on the warm side. When you see the center of a high pressure system, stamped with a big "H". on a weather map, indicating the point of highest barometric pressure in a vast area, note they go clockwise.
Warm air comes up from the south of the west side, cold air comes down from the north on the east side. That's why Billings is so warm and Fargo is so friggin cold.

Troughs.
Off the California Coast, we have dip in the Jet Stream bringing California its twelth storm. All the storms this rainy season out here have been weak. Compare our dip to the dip over the eastern United States. Now that's a dip worthy of good storm activity. The approaching dip in the Jet to California (known as a "trough" even though it looks like a crude drawing of a boob) is the nicest looking one yet this year. So let's hear it for boobs. I mean troughs.
Which brings up the question as to what one would call the ridges.