The nation's weather

AP News
Posted: May 16, 2011 4:36 AM
The nation's weather

Two low pressure systems will bring more areas of active weather to the East and the West on Monday.

In the East, the low pressure system over the Ohio Valley will move eastward through the Mid-Atlantic throughout the day. This storm will draw significant moisture from the Atlantic and kick up widely scattered showers from the Northeast through the Tennessee Valley and parts of the northern Gulf Coast states. The heaviest precipitation will fall in the already well-saturated areas of New England. This will translate into continued flood concerns throughout the region.

In the West, a cold trough of low pressure will remain the dominant weather feature Monday. This system will bring rain showers and high elevation snow to the Pacific Northwest, northern California and parts of the Intermountain West. Colder air will settle in behind this trough, leading to chilly daytime highs and lower snow levels.

Elsewhere, in between the aforementioned low pressure systems, relatively calm conditions are expected in the Central U.S. due to high pressure.

Temperatures in the Lower 48 states Sunday ranged from a morning low of 26 degrees at Blue Canyon, Calif., to a high of 90 degrees at West Palm Beach, Fla.