Weather Underground National Forecast for Tuesday,August 23,2016

By: nationalsummary, 2:00PM,GMT on August 23,2016




 
Weather Underground Forecast for Tuesday,August 23,2016

A cold frontal boundary will transition across the northern tier of the country on Tuesday, while monsoonal thunderstorms continue to develop over the Southwest.

A low pressure area will move east southeastward over south central Canada and the northern Plains. This system will produce showers and thunderstorms over the northern edge of the Intermountain West. A cold frontal boundary associated with this system will extend southwestward from the northern Plains to the Great Basin. As this frontal boundary transitions east southeastward, it will collide with warm and muggy air over the Plains. This interaction will generate strong to severe thunderstorms along the eastern edge of the northern Plains, the western edge of the Midwest and the central Plains. Severe thunderstorms will be possible in southeast South Dakota, eastern Nebraska, northeast Kansas, western Iowa and northwest Missouri. These thunderstorms are capable of producing large hail, dangerous straight line winds and isolated tornadoes. In addition, heavy rain will bring threats of flash flooding to eastern Nebraska, Iowa, northeast Missouri and northwest Illinois.

Showers and thunderstorms will remain in the forecast for parts of the Deep South and the Southeast as the tail end of a frontal boundary shifts over the region.

Isolated showers and thunderstorms will also persist across parts of the lower Intermountain West and the Desert Southwest as monsoonal moisture surges across the Four Corners.