Tuesday, October 20th 2009 Weather Outlook

20 10 2009
Tuesday’s Weather Outlook; Inter-Mountain West/Plains/Midwest System, Northwest System

11:30PM

 

On Tuesday, a system will push woards the Plains, while a new system pushes into the Northwest. Showers and storms will be likely in portions of the Inter-Mountain West, Plains and Midwest, as a system pushes towards the Plains. A few storms may become severe during the Afternoon and Evening across portions of New Mexico, Texas and Oklahoma. As CAPE values will be up to 1000 J/KG, LI’s up to -3 and Effective Bulk Shear values up to 45KT. The lack of moisture and instibility 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 tornaod. Snow will be likely in portions of the Rockies, where accumulations can be expected. In the Northwest, a new system will move into the area Tuesday Night. Rain will be likely, with snow being possible in the higher elevations. Below are the thunderstorm and snowfall outlooks for Tuesday.

sev 693 

snow 31