This is the blog for the United States' national forecast. These summaries are by Weather Underground forecasters and are updated twice each day.
By: nationalsummary , 8:41 AM GMT on May 12, 2014
Weather Underground Forecast for Monday, May 12, 2014
Late season snow will taper off over the Intermountain West on Monday, while severe weather will continue to impact the nations midsection.
A cold frontal boundary will extend from southwest Texas to Minnesota on Monday. As this system interacts with a warm, muggy air mass moving northward from the Gulf of Mexico, strong to severe thunderstorms will develop across the Plains and the Midwest. A handful of states will have a chance of severe thunderstorms, which will be capable of producing large hail and dangerous tornadoes. Severe thunderstorms will be possible over central and eastern Texas, eastern Oklahoma, northwest Arkansas, eastern Kansas, western Missouri, Iowa, northwest Illinois, southeast Minnesota, Wisconsin and Michigan. Heavy rain will accompany these thunderstorms, which could lead to flash flooding across the region. Low pressure along the northern tier of the frontal boundary will also usher rain across the central and northern Plains, while disorganized showers and thunderstorms will be possible over the eastern Mississippi Valley, the Ohio Valley and parts of the Northeast. The Southeast will stay mostly clear of stormy weather.
Meanwhile, heavy snow will linger over the central Rockies during early Monday morning. High pressure will kick in during the afternoon and evening, bringing calmer conditions to the Intermountain West. The same area of high pressure will dominate the western third of the country, bringing warm, dry conditions to the West Coast.
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