Thursday, October 8th 2009 Weather Outlook

7 10 2009

Thursday’s Weather Outlook; Plains/Mississippi Valley/Great Lakes/Ohio Valley System, High Plains System

11:15PM

On Thursday, a system will slowly push through the Southern Plains and Mississippi Valley, while a new system enters the High Plains. Showers and storms will be likely in portions of the Plains, Mississippi Valley, Great Lakes and Ohio Valley, assocaited with a system pushing through the area. Heavy flooding rainfall will be likely from Texas up into Ohio, due to the high moisture content associated with the system. There is a slight risk for severe storms in portions of Texas, Oklahoma, Arkansas, Missouri, Tennessee, Illinois, Indiana and Kentucky. Cape values will be between 1500-4000 J/KG, LI’s up to -9 and Effective Bulk Shear values of 30-70KT. Severe storms will develop during the afternoon along a front from Kentucky down into South-Central Texas. These storms will push eastward into the Night, with some severe threat. The main threats from the severe storms will be damaging winds, hail and an isolated tornado. In the High Plains, a new system will move into the area Thursday Night. Rain and Snow will be likely in portions of the Plains, while snow will be likely in portions of the Rockies. Accumulations are likely. Below are the severe weather and snowfall outlooks for Thursday.

sev 679

 

snow 15


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