Weather Underground Forecast for Tuesday,July 12,2016
Extreme weather will impact the central third of the country on Tuesday, while a weak frontal system drifts across the Northwest.
An area of low pressure will move slowly eastward over south central Canada and the northern Plains. This system will usher showers and isolated thunderstorms over parts of the northern Plains. A cold frontal boundary associated with this system will extend south southwestward from the upper Mississippi Valley to the central Plains. As this frontal boundary collides with warm and humid air, it will initiate strong to severe thunderstorms across portions of the Midwest, the central Plains and the southern Plains. Severe thunderstorms will be possible in western Michigan, Wisconsin, northern Illinois, Iowa, northern Missouri, southeast Nebraska and eastern Kansas. These thunderstorms will be capable of producing large hail, dangerous straight line winds and isolated tornadoes. In addition, heavy rain will bring threats of flash flooding to southern Wisconsin, northwest Illinois, Iowa, northern Missouri, southeast Nebraska and eastern Kansas.
Meanwhile, a Pacific cold front will drift over the Northwest. This frontal system will generate light showers in parts of Washington, Oregon, Idaho and Montana. High pressure will keep conditions warm and dry across the Southwest.
Back east, a stationary front and an onshore flow from the Gulf of Mexico will keep showers and thunderstorms in the forecast for the Deep South and the Southeast. Most areas across the Northeast should stay clear of wet weather on Tuesday.
Extreme weather will impact the central third of the country on Tuesday, while a weak frontal system drifts across the Northwest.
An area of low pressure will move slowly eastward over south central Canada and the northern Plains. This system will usher showers and isolated thunderstorms over parts of the northern Plains. A cold frontal boundary associated with this system will extend south southwestward from the upper Mississippi Valley to the central Plains. As this frontal boundary collides with warm and humid air, it will initiate strong to severe thunderstorms across portions of the Midwest, the central Plains and the southern Plains. Severe thunderstorms will be possible in western Michigan, Wisconsin, northern Illinois, Iowa, northern Missouri, southeast Nebraska and eastern Kansas. These thunderstorms will be capable of producing large hail, dangerous straight line winds and isolated tornadoes. In addition, heavy rain will bring threats of flash flooding to southern Wisconsin, northwest Illinois, Iowa, northern Missouri, southeast Nebraska and eastern Kansas.
Meanwhile, a Pacific cold front will drift over the Northwest. This frontal system will generate light showers in parts of Washington, Oregon, Idaho and Montana. High pressure will keep conditions warm and dry across the Southwest.
Back east, a stationary front and an onshore flow from the Gulf of Mexico will keep showers and thunderstorms in the forecast for the Deep South and the Southeast. Most areas across the Northeast should stay clear of wet weather on Tuesday.
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