If you didn't build a snowman or go sledding when the last winter storm blew through, it looks like you're going to have several more chances this week.

Forecasters were predicting 1 to 3 inches of snow as low as the valley floor overnight and this morning, and 12 inches or more in the high Cascades and Siskiyous. Snow and rain could continue intermittently well into Tuesday, said Brett Lutz, a forecaster at the National Weather Service office in Medford. Lutz said a large mass of cold air from the Gulf of Alaska is moving south toward Oregon and will keep daytime temperatures in the high 30s to low 40s around Medford for most of the week. That could mean that overnight snow might not necessarily melt the following day, as often occurs.

"It's going to get kind of sloppy down here," he said. Forecasters were expecting the snow level to hover around 2,000 feet today and drop to around 1,500 feet during the night, then remain at 2,000 feet Tuesday and Tuesday night. At 9 p.m. Sunday, some areas of western Jackson County near Grants Pass had 1 inch of snow on the ground at about 1,500 feet.