The nation’s weather

Weather Underground midday recap for Sunday, May 05, 2013.

Heavy rains continued for the Southeast on Sunday as a slow moving upper low lingered over the region. The system pulled moisture in from the Gulf of Mexico, while an associated cold front began to drop across the western and central Gulf Coasts. As this system slowly advances eastward throughout the day, heavy rainfall will spread across Lower Ohio Valley into the eastern Tennessee Valley and parts of the Carolinas and Virginias. While severe thunderstorms are not anticipated with this system, heavy rainfall will continue to create flooding across the region. Flood Watches and Warnings were issued for parts of the region in anticipation of rainfall totals from 3 to 5 inches in many areas.

To the north, a nearly stationary frontal boundary lingering across the Upper Midwest weakened through the afternoon, allowing for showers to come to an end for the region. Behind this system, a few areas of light showers and drizzle continued in the Dakotas and Nebraska through the morning.

In the West, low pressure system off the coast of California advanced toward the state, bringing fairly limited moisture onshore with it. This led to chances of scattered showers and thunderstorms primarily near the low and in the mountains Sunday into Monday. Extremely dry conditions across California allowed fire danger to remain high in many areas. In many areas dry thunderstorms were expected, creating favorable conditions for fire ignition and rapid fire spread. Meanwhile, just to the east, a trough of low pressure over the Intermountain West and Northern Rockies slid southward throughout the day, bringing a few areas of showers and isolated high elevation snow showers in the Great Basin and Central Rockies.

Temperatures in the Lower 48 states Sunday have ranged from a morning low of 21 degrees at Chadron, Neb. to a midday high of 87 degrees at Phoenix-Mesa Gateway Airpo, Ariz.

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