Sunday, September 6th 2009 Weather Outlook

6 09 2009

Sunday’s Weather Outlook; Southeast System, Mississippi Valley/Ohio Valley/Plains System, West/Plains System

12:00PM

On Sunday, a system will slowly develop along the Southeast Coast, while an upper disturbanc moves towards the Ohio Valley and a system continues to push through the West. showers and storms will be likely in coastal areas of the Southeast, as a system develops alogn a weak frontal boundary just off the coast. Showers and storms will also be lilely in portions of the Ohio Valley, Mississippi Valley and Southern Plains,a s an upper level low continues to slowly move through. A few storms may become severe during them Afternoon and Evening. As CAPE vales will be around 3500 J/KG, LI’s of -8 and Effective Bulk Shear value sup to 35KT. The lack of shear and forcing will limit the overall severe threat and coverage. The main threats from any storms that becoem severe will be damaging winds, hail and an isolated tornado. In the West, a system will continue to push trhough the region, bringing a chance of showers and storms to portions of the West and Western Plains. Some storms may become severe during the Aftenroon and Evening. As CAPE values will be up to 3000 J/KG, LI’s up to -8 and Effective Bulk Shear vales up to 40KT. The lack of forcing and moisture will limit the overalls evere threat and coverage. The main threats from any storms that become severe will be damaging winds and hail. Below is the thunderstorm outlook for Sunday.

sev 639

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