Thursday, February 26th 2009 Weather Outlook

25 02 2009

Thursday’s Weather Outlook; Plains/Midwest/Great Lakes/Mississippi Valley System, West System, Northeast System


On Thursday, a system will move through the Northeast, while a system moves through the Plains and into the Great Lakes, as a system continues to affect the West. Rain and snow will be possible in the Northeast early in the day, as a clipper system affects the area. In portions of the Plains, Midwest and Great Lakes, snow will be likely on the north side of a system that is moving through. An axis of heavy snow accumulations will be likely from the Dakota’s up into Michigan. Snowfall rates may reach 1-3 inches an hour at times with thundersnow being possible. In the Mississippi Valley and Southern Great Lakes, showers and storms will be likely. Heavy rainfall will be likely with rain amounts over 1 inch being possible. There is a slight risk for severe storms in portions of Illinois, Indiana, Kentucky, Tennesse, Arkansas, Oklahoma, Missouri, and Iowa. CAPE values will be around 1000 J/KG, Effective Bulk Shear of 55KT, and there will be ample moisture. This along with an approaching system will help the storms become severe, with the main threats being damaging winds, hai and an isolated tornado. Below is the severe weather and snowfall outlook for Thursday.





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