Mountain snow and lowland rain are likely in the West. Some flooding may arise from Oklahoma to Tennessee as storm systems head east. East of the Rockies, the jet is climbing toward the north, promoting a flow of warm, humid air from the Gulf of Mexico. A zone of low pressure is moving through northern California, enhancing rain and snow chances. One to two inches of rain fell near the coast of California this weekend. Seattle has already recorded 4.4 inches of snow to start the winter, sixth-snowiest start on record.
