Tuesday, October 6th 2009 Weather Outlook

5 10 2009

Tuesday’s Weather Outlook; Plains/Midwest/Great Lakes/Mississippi Valley/Ohio Valley System

10:30PM

On Tueday, a system will push through the Midwest. Showers and storms will be likely in portions of the Plains, Midwest, Great Lakes, Mississippi Valley and Ohio Valley, as a system continues to push eastward through the Midwest. Some storms may become severe during the Afternoon and Evening across portions of Texas, Arkansas, Tennesse, Louisiana, Mississippi and Alabama. As Cape vaules will be between 1500-3500 J/KG, LI’s up to -6 and effective Bulk Shear values up to 50KT. The lack of frocing will limit the overall severe threat and coverage. the main threats from any storms that become severe, will be damaging winds, hail and an isolated tornado. There is a chance for some snow on the backside of the system int he Dakotas and Minnesota, though no accumulation is expected. In the High Plains, a system will move into the area Tuesday Night. Snow will be possible in the Rockies and rain in the Plains. In the Desert Southwest, showers and storms will be possible Tuesday Night. As a new system begins to develop. Below are the thunderstorm and snowfall outlooks for Tuesday.

sev 680

 

snow 12





October 3-6th 2009 West/Plains “Winter” Storm

5 10 2009

Sunday-Wednesday, West/Plains “Winter” Storm

12:00PM

An early season snowstorm will push the West and Plains. Snow will be likely over the Rockies and the Northern Plains. Heavy snowfall will be possible at times, with snowfall rates over 1″ per hour. A general 1-3″ and 3-6″ will be possible over the Plains of Montana, Wyoming, South Dakota and North Dakota. 6-9″ will be possible in the Black Hills of South dakota and Wyoming. 1-2 feet of snow will be likely further west, in portions of the Rockies. Below is the snowfall map for this system.

snow 11