Wednesday, April 29th 2009 Weather Outlook

29 04 2009
Wednesday’s Weather Outlook; West/Plains/Midwest/Mississippi Valley System, Mid-Atlantic System
11:00PM
On Wednesday, a system will exit the Mid-Atlantic, while a system pushes into the Plains. Showers and isolated storms will be possible in portions of the Mid-Atlanit, as a system exits the area. In the Plains, a system will enter the region from the West. Showers and storms will be possible in the Plains, Midwest and Mississippi Valley, along and ahead of the approaching system. There is a slight risk for severe storms in portions of Nebraska, Kansas, Colorado, Oklahoma, Texas, Arkansas and Louisiana. CAPE values will be around 3500 J/KG, LI’s of -8 and Effective Bulk Shear Values of 40-60KT. This along with a system pushing through the area, will help storms become severe. An MCS will be ongoing in the Morning across portions of Texas and Oklahoma. Severe storms will be possible with this storm complex as it pushes eastward into the Night. Another line of severe storms will develop from Nebraska down into Texas in the Afternoon. These storms will push eastward through the Evening, before Weakening Overnight. The main threats from the severe storms will be hail, damaging winds and a few tornadoes. On the north side of the system, snow will be likely in the higher elevations of the Northwest. Below is the severe weather and snowfall outlook for Wednesday.

sev-454

 

snow-251


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