US

Weather Underground midday recap for Sunday, October 12, 2008.

A cold front split the nation in two on Sunday and brought contrasting temperatures to the East and West. The front also spawned heavy rain over the Plains and some snow across the northern Rockies and Great Basin.

In the mountains of the West, very cold temperatures were reported on Sunday morning as frigid air dropped southward beneath a trough in the Jet Stream. Up to a foot of snow had been reported in portions of Wyoming, with widespread reports of 2-4 inches of accumulation in the past 24 hours. Reports of up to 2 inches of snow came in from the Sierras around Yosemite.

In the East, conditions were much warmer and the weather was generaly dry. A strong area of high pressure was centered over New Jersey and kept skies clear for the most part. The high did cause some wet weather in South Carolina and Georgia though as strong onshore winds carried humid air ashore and triggered showers and thunderstorms across the region. The moisture plume from the Atlantic spread clouds across the Deep South and into the Plains.

Temperatures in the Lower 48 states Sunday have ranged from a morning low of 10 degrees at Bryce Canyon, Utah to a midday high of 93 degrees at Tampa Vandenberg, Fla.