Antarctica

Weather Underground Forecast for Wednesday, November 11, 2009.

Wet weather will persist in the South as extratropical storm Ida continues tacking northeastward up the East Coast on Wednesday.

The system will continue picking up moisture from the Gulf of Mexico and will spread scattered showers and thunderstorms over the Mid-Atlantic states, while the Southeastern states start to dry out. Strong atmospheric steering at high levels will steer Ida eastward and will not allow it to move northward and up the Coast. Flooding will remain a concern over the Lower Mississippi Valley and will also threaten the Tennessee Valley and Carolinas. Expect rainfall totals between 2-3 inches in many of these areas with strong and damaging winds with gusts up to 20 mph. Cool conditions will accompany this storm with highs only reaching into the 50s in many places.

Meanwhile in the North, a large area of high pressure will remain over the Great Lakes. This will bring another day of warm and pleasant weather. The Great Lakes and Midwest will see mostly sunny skies with highs in the 50s and 60s, as the Southern Plains return to the 70s on Wednesday.

Out West, expect cool and dreary weather over the Pacific Northwest again on Wednesday. A trough of low pressure will push onshore and due to it ample supply of moisture, spread moderately heavy precipitation over the region throughout the day. Expect near 1 inch of rain in lower elevations, while the Cascades and Northern Rockies will see a dusting of snow. This system will also bring another cool day with low level coastal clouds to the rest of the West Coast.

Temperatures in the Lower 48 states Tuesday ranged from a low of 3 degrees at West Yellowstone, Mont. to a high of 92 degrees at Organ Pipe Cactus, Ariz.