@evamarie
New to me, also. Same with the "bomb cyclones."

@evamarie been a thing for a loooong time. Commonly used to describe a “Pineapple Express” that hits the PNW in winter

@evamarie Yep. They happen frequently up here in the Pacific Northwest. It's a fairly common phenomenon.

@evamarie
Yes, before it was just more boring rain. Now every time it rains its an "atmospheric river!". Very exciting!