Weather Underground Forecast for Friday, March 22, 2013.
Snow showers persist for the Northwest and Rockies on Friday, while showers and thunderstorms move through the Lower Mississippi River Valley. As a low pressure system moves off the Rockies and through the Plains, it will pull moisture in from the Gulf of Mexico. This will allow for scattered showers and thunderstorms to develop over the Southern Plains and move over Lower Mississippi River Valley, into the Southeast. There is a slight chance that these storms will turn severe, with main threats being strong winds and periods of heavy rainfall. Cooler temperatures along the northern side of this system will maintain chances of snow showers across the Northern and Central Plains. At the same time, the back side of this system will allow for periods of heavy snow showers to persist for the Rockies from Wyoming through Colorado and into western Nebraska and Kansas. Winter weather advisories will remain in effect for the Central High Plains as snowfall accumulation over 6 inches is possible with winds up to 30 mph.
Further west, disturbances moving over the Pacific Northwest and Intermountain West will create more rain and snow showers for the region on Friday. In the East, a low pressure system over eastern Canada maintains scattered snow showers over the Great Lakes and Northeast. Heaviest snow showers are expected along the downwind shores of the Great Lakes.
Temperatures in the Lower 48 states Thursday have ranged from a morning low of -18 degrees at Cando, N.D. to a high of 83 degrees at Pecos, Texas