they used to call it a pineapple express-- Cold Artic air mixes with warm tropical air causing a lot of rain.Hi Ron, what is an atmospheric river? Is that a term for flooding?
There is usually wind with a lot of rain in bands. The bands can drop the equivalent of a river of water over the area of the band.
If the band misses you, then you do not get that much rain so it is hit and miss depending on the storm. Last winter we were in the high wind and rain zones long enough to be declared a disaster area.
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