More wet and cool weather is in store for the Western U.S Wednesday as another strong Pacific system moves across the region. The associated cold front is expected to bring moderate to heavy rain from northern California early Wednesday to central California and Great Basin around midday. The front should reach southern California by the evening. Both the Sierras and portions of the Central Great Basin above 6000 feet can expect snow accumulations 6 to 12 inches with locally 18 inches in the highest elevations Wednesday through Thursday. Winds are expected 20 to 30 mph, with gusts to 40 to 50 mph. In addition, showers and thunderstorms will become likely Wednesday afternoon over parts of the Southwest into the Central and Southern Rockies.
In the East, the low pressure system off the New England Coast will move northeast Wednesday morning. As a result, fair weather conditions will return to the East Coast, except some light lingering showers over far northern New England. Moreover, much cooler air will settle in after the storm system over northern New England Wednesday. Temperatures are expected to be only in the 40s and lower 50s.
In the mid-section of the nation, warm to hot weather continues as a strong ridge of high pressure remains in place. Portions of the Midwest can expected temperatures running 20 to 25 degrees above normal. Temperatures in the Lower 48 states Tuesday have ranged from a morning low of 30 degrees at Leadville, Colo. to a high of 96 degrees at Phoenix-Mesa Gateway Airpo, Ariz.