Weather Underground Forecast for Friday, May 04, 2012.
Wet weather moves into the East as a trough of low pressure moves over the Great Lakes and into the Northeast on Friday. This will allow for scattered showers and thunderstorms to move up the Ohio River Valley and into the Northeastern US. Expect some of these storms to turn severe with heavy rain, strong winds, and large hail. Rainfall totals will vary from 1 to 2 inches, with up to 3 inches possible in areas of severe weather development.
Behind this system, another trough of low pressure moves off the Rockies and into the Plains. As this system pulls moisture and energy in from the Gulf of Mexico, it will produce showers and thunderstorms across the Central Plains through the Mid-Mississippi River Valley. There is a slight chance that these storms will turn severe with strong winds, large hail, and possibly a few tornadoes.
Meanwhile out West, a trough of low pressure continues moving eastward from the Pacific Northwest and over the Northern Rockies. Onshore flow behind this system will continue, which will produce more rain and mountain snow showers across the region. Strong winds will accompany this system as it moves eastward. Due to strong winds and dry conditions, expect increased fire danger for the Great Basin and Central Rockies. Temperatures in the Lower 48 states Thursday have ranged from a morning low of 20 degrees at Drummond, Mont. to a high of 98 degrees at Childress, Texas.