A low pressure area has been sitting over the Great Lakes region for about a week now, keeping the region and the U.S. northeast and Mid-Atlantic under cloud cover.
NASA's Aqua satellite flew over head yesterday, Sept. 26, and captured two views of the low pressure system from space .
That low pressure area continues to spin counter-clockwise today over the Great Lakes . Its centered over northern Illinois and southeastern Wisconsin and is once again going to keep the region cloudy, cool and wet with showers.
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When the Aqua satellite passed overhead Monday afternoon at 3:05 p.m. EDT (Sept. 26) a detailed, clear image was captured from the Moderate Resolution Imaging Spectroradiometer (MODIS) instrument . The clouds from the low spread in a classic comma shape over Illinois, Wisconsin, parts of Iowa, northeastern Missouri, southeastern Minnesota, Michigan, Ohio, Indiana, Pennsylvania, Kentucky, Tennessee, Alabama, Mississippi, Georgia, and the northeastern and Mid-Atlantic states.
According to the National Weather Service, the low will finally start moving to the east as an upper-atmospheric trough (an elongated area of low pressure) continues to strengthen and move into the upper Midwest. However, a ridge (elongated area) of high pressure will slow its move eastward, so it will be slow clearing this week in the northeastern and Mid-Atlantic.
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