US

Weather Underground Forecast for Thursday, September 09, 2010.

Tropical Depression Hermine will continue to produce significant rainfall as it lifts northward into southern Kansas on Thursday. Scattered, light to moderate showers, locally heavy rainfall, and thunderstorms are expected to affect the Central and Southern Plains and the Ozarks. Prolonged periods of rainfall will lead to more flood and flash-flood watches and warnings throughout the day.

Meanwhile, scattered showers will continue in portions of the Northeast and northern New England as low pressure over the region lifts into southeastern Canada. As the storm progresses, an associated cold front will push across the Mid-Atlantic coast, allowing drier, calmer, and much cooler weather to develop across the Mid-Atlantic. The tail of this front will extend through the Southeast and will combine with the remnants of Hermine in Kansas.

In the West, disturbances pushing across the Intermountain West will reach into the Northern High Plains on Thursday. The system will combine with Gulf moisture to produce scattered showers and thunderstorms. Storms in the Northern High Plains may turn severe with hail, gusty winds, and possible tornadoes. Further west, a weak ridge of high pressure will begin to build into the Coast, providing a gradual warming trend across the Pacific Northwest and northern California. To the south, low pressure will keep southern California under cool temperatures.

Temperatures in the Lower 48 states Wednesday ranged from a low of 32 degrees at Chemult, Ore. to a high of 105 degrees at Bullhead City, Ariz.