The nation’s weather

Weather Underground Forecast for Monday, September 02, 2013.

Unsettled weather will continue in the East on Monday, while cooler and drier weather returns to the Midwest.

In the East, low pressure over the upper Great Lakes will lift northeastward into southeastern Canada on Monday, allowing an associated cold front extending across the Midwest through the Central Plains to reach from the lower Great Lakes through the Southern Plains. Moist conditions ahead of this disturbance will support areas of support scattered showers and chances of thunderstorms from the Northeast through the Deep South. Moderate to locally heavy rains may become possible in the Northeast as ample moisture pools along a warm front stalls across the northern tier of the region.

Meanwhile, as unsettled weather becomes more focused over the East and South, high pressure will move over the Midwest with drier and cooler weather conditions. Temperatures in the region are expected to range from the 60s in parts of the upper Great Lakes and upper Mississippi Valley to the lower 80s in the lower Ohio Valley.

Meanwhile out West, showers and thunderstorms will continue from areas of inland southern California through the desert Southwest into the Intermountain West. Flooding will remain a concern for these areas, especially desert locations. Additional showers are expected along the Pacific Northwest coast as a frontal disturbance from the Pacific approaches the area.

Temperatures in the Lower 48 states Sunday have ranged from a morning low of 32 degrees at West Yellowstone, Mont. to a high of 106 degrees at Wichita Falls, Texas

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