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[September 28, 2010] (AP) Cool, wet and stormy weather was forecast to continue in the Eastern Seaboard on Tuesday due to a dominant, lingering low pressure trough.

Flow associated with the trough was expected to pump a steady flow of moisture northward across the Southeast, Mid-Atlantic and the Northeast throughout the day.

(Click on map for larger image.)

This surge of moisture combined with a cold front exiting the East Coast and a warm front lifting across the lower Great Lakes and the Northeast would translate into more scattered showers with embedded thunderstorms, bands of heavy rainfall and strong wind gusts. The Northeast and New England areas were expected to experience the heaviest amounts of rainfall Tuesday, while significant rainfall in the Mid-Atlantic and the Southeast would be restricted to the nearby coastal areas. Persistent showers and periodic heavy rainfall were forecast to create chances of local flooding throughout the day. Increased instability over southern New England and the Mid-Atlantic coast should also create chances of severe storms with locally damaging wind gusts and possible tornadoes.

Behind the active weather in the East, strong high pressure would provide another dose of fair and dry weather conditions to much of the central and western regions of the nation. Seasonal temperatures were expected to remain over much of the Midwest, while unseasonably warm weather continues in the West. Relief from the heat was expected later this week.

Elsewhere in the West, outside of a few coastal showers, high pressure was expected to continue over the Pacific Northwest with fair weather.

Temperatures in the Lower 48 states Monday ranged from a low of 21 degrees at Ruth, Nev., to a high of 113 degrees in downtown Los Angeles.

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Online:

Weather Underground: http://www.wunderground.com/

National Weather Service:
http://iwin.nws.noaa.gov/

Intellicast:
http://www.intellicast.com/

[Associated Press article from Weather Underground]