Wednesday, May 13th 2009 Weather Outlook

13 05 2009

Wednesday’s Weather Outlook; Plains/Great Lakes/Midwest/Ohio Valley/Mississippi Valley System, Northwest System

12:00PM

On Wednesday, a system will continue to push eastward across the Plains, while a new system enters the Northwest. Showers and storms will be likely over portions of the Plains, Midwest, Great LAkes, Ohio Valley and Mississippi Valley, as a ssystem pushes eatward into the region. There is a moderate risk for severe storms in portions of Iowa, Missouri, Kansas, Oklahoma, Missouri and Illinois, with a slight risk in surrounding areas. CAPE values will be up around 5500 J/KG, LI’s of -11 and Effective Bulk Shear values of 50-75KT. This along with the system pushign in, will help storms become severe. Storms will be ongoing across portions of Iowa, Wisconsin, Missouri, and Illinois in the Morning. These storms will push eastward throught he day, with a heavy rain threat. Severe storms will develop in the Afternoona long the cold front, from Iowa down into Kansas. These storms will push eastward through the Night, before weakening. The main threats from the severe storms will be damaging winds, hail and tornadoes. Below is the severe weather outlook for Wednesday.

sev 475


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