Sunday, July 26th 2009 Weather Outlook

26 07 2009

Sunday’s Weather Outlook; Great Lakes/Northeast/Mid-Atlantic/Southeast/Southern Mississippi Valley System, High Plains System

12:00PM

On Sunday, a system will push into the Northeast, while a system pushes through the High Plains. Showers and storms will be likely in portions of the Great Lakes, Northeast, Southeast and Southern Mississippi Valley, associated with a system pusing into the Northeast. There is a slight risk for severe storms in portions of New Hampshire, Wermont, Massachusetts, Conneticut, Rhode Island, New York, Pennsylvania, New Jersey, Deleware, Maryland and Virginia. CAPE values will be around 3000 J/KG, LI’s of -7 and Effective Bulk Shear values of 25-50KT. Severe storms will develop along and ahead of a cold front from New York down into Virginia. These storms will push eastward into the Evening before moving offshore or weakening as idurnal cooling sets in. The main threats from the severe storms will be damaging winds, hail and an isolated tornado. Further southwest along the front from the Carolinas back into Texas, a few storms may become severe. As CAPE values will be around 3500 J/KG, LI’s of -7 and Effective Bulk Shear values up to 40KT. The lack of forcing and lower shear, will limit the overall threat and coverage. Which will preclude a slight risk from being issued. The main threats from any storms that become severe will be damaging winds, hail and an isoalted tornado. In the High Plains, a system will move through the area bringing a chance of showers and storms. Some of the storms may become severe across portions of the area. As CAPE values will be around 2000 J/KG, LI’s of -6 and Effective Shear values up to 45KT. Limited forcing and lower instibility will limit the overall threat and coverage. Which will preclude a slight risk from being issued. The main threats from any storms that become severe will be damaging winds, hail and an isoalted tornado. In portions of the Desert Southwest and Inter-Mountain West, Afternoon and Evening showers and storms will be likely. With limited instibility, shear and forcing, a few storms may be severe. With the main threats being hail and damaging winds. Below is the severe weather outlook for Sunday.

sev 584


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