US

Weather Underground Forecast for Tuesday, January 06, 2009.

Two storm systems will affect the country on Tuesday. A low pressure system will begin to form in the Southeast from a trough will extend from the Southern Plains, through the Southeast, and up into the Northeast during the day. The cold front associated with the storm will trigger showers and thunderstorms across the Southeast on Tuesday, and there is the possibility that the thunderstorms could become severe. Heavy rain and strong winds are expected across the region, as well as hail and a few tornados in the event of severe weather.

Precipitation ahead of the warm front associated with the storm will provide a wide variety of rain, snow, and ice for the Northeast on Tuesday. A few inches of snow and sleet accumulation is expected in parts of New York, northern New Jersey, eastern Pennsylvania, and New England. Icy and rain are anticipated in the lower Mid-Atlantic states, and a few tenths of ice accumulation are possible. To the east, a mix of rain and snow will fall over the Ohio Valley during the day.

The outer edges of the storm will extend into the Northern Plains and the Upper Midwest on Tuesday, and clouds and light snow showers are likely across the area. The rest of the Plains will see mostly to partly clear skies during the day.

A second storm will slam into the Northwest on Tuesday. Heavy rain is expected along the Pacific Northwest coast during the day, with several inches of snow possible farther inland over the Northern Rockies. Strong winds are also anticipated across the region throughout the day.

High pressure will provide mostly sunny skies for most of the Southwest on Tuesday, except for the mountains of Colorado and Utah, which will instead see clouds and a few inches of snow.

Temperatures in the Lower 48 states Monday ranged from a low of -36 degrees at Flag Island, Minn to a high of 82 degrees at Lakeland Region, Fla.