Powerful storm off Pac Northwest coast (yes, another bomb cyclone) has driven heavy rain, mountain snow into northern Calif to Washington. It's also catalyst for storm that will develop in Plains with snow/high winds in Dakotas, N Minnesota late week. wapo.st/3khWqRF 1/x
Pacific Northwest really getting hammered with precipiation--this is very typical of La Ninas. Map here is forecast precip through Friday morning: 2/x 
As storm develops in northern Plains/Upper Midwest, heavy snow and strong winds likely to be big issue for northeast North Dakota and northern Minnesota, Thursday night and Friday - specific amounts still coming into focus. La Nina also favors harsh winter in this area: 3/x
Storm system coming across country will drag cold front with heavy rain from Central States to East Coast between Wednesday and Friday, and drop temps 10 to 20 degrees. 4/4
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