Weather Underground Forecast for Tuesday, December 13, 2011. Very active weather will continue in the Southwest on Tuesday due to a strong storm that will make its way through Arizona and New Mexico before being on the verge of moving into the Plains late in the day. This storm will be cold enough to produce high elevation snow and plenty of low elevation rain in the Four Corners region. Winter Storm Warnings are in effect for elevations higher than 5,500 feet as over a foot of snow will fall. Snow levels in some areas will be as low as 4,000 feet. This storm will have the potential of being particularly strong in the Plains during the second half of the week.
Before the storm arrives in the Plains, however, moderate to heavy rain will form late in the day in the Central Plains from Kansas through Illinois.
Meanwhile, a high pressure system over the eastern third of the country will continue to provide dry conditions east of the Mississippi Valley.
The Northwest will also remain dry due to a high pressure system that will also keep conditions quite cool.
The Northeast will rise into the 30s and 40s, while the Southeast will see temperatures in the 50s, 60s, and some 70s. The Northern Plains will rise into the 20s and 30s, while the Northwest will see temperatures into the 40s. Temperatures in the Lower 48 states Monday have ranged from a morning low of -11 degrees at West Yellowstone, Mont. to a high of 82 degrees at Opa Locka, Fla.