Wednesday, July 1st 2009 Weather Outlook

Wednesday’s Weather Outlook; Northeast/Mid-Atlantic/Southeast System, Plains/West System

12:00PM

On Wednesday, a system will continue to sit over the Great Lakes and Northeast, while a system continue to develop over the West. An upper low will continue to sit over the Northeast and Great Lakes. A disturbance will continue to rotate around the upper low, through the Mid-Atlantic. Showers and storms will be possible from the Northeast down into the Southeast associated with this disturbance. There is a slight risk for severe storms in portions of Rhode Island, Massachusetts, Conneticut, New York, Pennsylvania, New Jersey, Virginia, Maryland, Deleware, Vermont, New Hampshire, North Carolina and South Carolina. CAPE values will be around 2000 J/KG, LI’s of -5 and Effective Bulk Shear values up to 45KT. Severe storms will develop during the late Morning and early Afternoon from New York back down into South Dakota. These storms will push eastward through the day, before wekaening during the Evening as diurnal cooling sets in. The main threats from the severe storms will be damaging winds and hail. Across the West, a system will continue to develop across the area. Showers and storms will be likely associated witht his system and a stationary boundary across portions of the area. There is a slight risk for severe storms across portions of Montana, North Dakota, South Dakota, Wyoming, Colorado, Kansas and Nebraska. CAPE values will be around 2500 j/KG, LI’s of -8 and Effective Bulk Shear values of 20-50KT. Severe storms will develop during the Afternoon from Montana down into Northeastern Colorado. These storms will push eastward through the Evening. Storms may then from into and MCS across portions of Western Nebraska. If this complex dvelops, it will push eastward overnight with some storms being severe. The main threats from the severe storms will be damaging winds, hail and an isolated tornado. Across portions of the Southern Plains and Inter-Mountain west, with limited instibility a few sotrms may become severe. With the main threats being hail and damaging winds. Below is the severe weather outlook for Wednesday.