Saturday, April 4th 2009 Weather Outlook

4 04 2009

Saturday’s Weather Outlook; Northeast System, West/Plains/Midwest System


On Saturday, a system will exit the Northeast, while a system pushes east through the West and into the Plains. Snow will be likely in the higher elevations of the Interior Northeast, as a system exits the area. Accumulations are possible. In the Plains, a system will enter the area from the West. Shower snad storms will be likely in the Central Plains and Southern Midwest, ahead of the system. There is a slight risk for severe storms in portions of Iowa, Nebraska, Missouri, Arkansas and Oklahoma. CAPE values will be around 1500 J/KG, LI’s of -4, dew points in the 50’s and Effective Bulk Shear values of 45-60KT. This along with a system moving through, will help storms become severe. With the main threats being hail, damaging winds and an isolated tornado. On the north side of the system, snow will be likely in the higher elevations of the West, Central Plains and portions of the Midwest. Heavy snow will be possible, with snowfall rates of 1-3 inches per hour at times. Given the dynamics, and thunderstorm being able to be wrapped into the cold secotr. Some thundersnow is possible Winds will also be a problem, gusting over 35MPH at times, causing blizzard conditions. Accumulations are likely, with a heavy axis of snow over Nebraska, South Dakota, Iowa and Minnesota. Below is the severe weather and snowfall outlook for Saturday.