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 Coastal and valley rain showers and high-elevation snowfall from Sunday's frontal system are expected to taper down through Monday morning. As this precipitation decreases, another cold front from the Pacific will approach the Pacific Northwest, bringing another shot of rain to the Pacific Northwest coast and valleys, high-elevation snow
to the Cascades and
northern Rockies, showers to northern California, and snow to the northern Sierra Nevadas. This precipitation will continue and spread into
central California through Tuesday.
In the East, precipitation will continue and will spread into the upper Midwest and
upper Great Lakes as the low pressure system in the central Plains lifts northeastward through the Midwest. Showers, periods of heavy rain and thunderstorms will form along and ahead of its associated cold front as it pushes eastward through the
eastern valleys and draws up ample moisture from the Gulf of Mexico. There is a slight risk for severe weather development from northeastern Illinois into much of lower Michigan. The main concerns with these storms are large hail and tornadoes.
Temperatures in the Lower 48 states Sunday ranged from a morning low of 1 degree at West Yellowstone, Mont., to a high of 84 degrees at Fort Myers, Fla.
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