The Nation's Weather 09.22.08

The first day of fall brought rainy weather to the Southeast and northern Plains, while high pressure is to keep the Great Lakes and Northeast mainly clear and dry.

A low pressure system to the north will instigate slight rainfall and thunderstorms across the northern Plains. These storms were expected to spread southward into the central Plains.

Wet weather conditions will not extend eastward into the Great Lakes regions. High pressure building over the central lakes will cause the surrounding areas to see fair conditions.

Weather conditions for the majority of the Northeast will also be influenced by high pressure. The region will see mostly dry and fair conditions. Areas in Connecticut, Rhode Island and Massachusetts could see slight showers and thunderstorms.

An area of low pressure over the Gulf of Mexico will push moisture into areas along the Gulf Coast and may instigate storm development.

Another low pressure system east of Georgia and South Carolina will trigger rain and possible thunderstorms in these regions as well as Florida.

The Southwest will see dry and fair conditions as high pressure develops over this region. The Pacific Northwest will see slight rain showers as a cold front moves through.

Temperatures in the Lower 48 states on Sunday ranged from a low of 26 degrees at Truckee, Calif., to a high of 104 degrees at Gila Bend, Ariz.