A special type of atmospheric river is called a Pineapple Express. They form when low pressure is west of California with high pressure to the south near Mexico. That's what happened this week.
Call it an atmospheric river, a Pineapple Express or just weather ... Arctic high pressure will be settling south from Canada across much of the northern tier of the nation early this week ...
Some results have been hidden because they may be inaccessible to you
Show inaccessible results