Today: We're off to a very cold start this morning with more freezing fog around Grants Pass. Expect increasing clouds as we head into the afternoon, with temperatures topping out in the 40s for our westside valleys, the 30s in the Cascades and the Klamath Basin. Along the coast, temperatures will once again rise to around 50 degrees. 

Tonight: We'll begin to see the effects of our next storm system heading into tonight. Showers will start to move in along the coast and snow into the Cascades as early as 6 PM this evening. Rain and snow showers will continue to become more widespread as we head throughout the night with snow levels dropping to nearly 2,000'. Overnight lows will drop into the low to mid 20s in the Klamath Basin, Cascades, and Northern California, the low to mid 30s in the Rogue Valley, and in the lower 40s along the coast.

Extended: We'll see spotty light to moderate rain and snow showers along and west of the Cascades on Saturday with isolated activity in Siskiyou County and east of the Cascades. Snow levels will be around 2,000' in the morning before rising to 3,500' in the afternoon. A surge of heavier rain and snow will begin to push into the region tomorrow night into Sunday. Snow levels will rise above the lower passes on Sunday, but our higher Cascade passes and elevations could see some very significant snow Saturday night through Monday morning.

A WINTER STORM WATCH has been issued for the Cascades and Siskyous, the higher elevations of Klamath and Lake Counties, and for elevations above 3,000' in western Siskiyou County where significant snow of 1 to 2 feet is possible from 10 PM Saturday to 10 AM Monday. 

An atmospheric river looks to set up over the region into next week where a series of storm systems will roll through our area packing ample tropical moisture, originating from Hawaii. With this set up, we have the potential for very heavy rain and very heavy snow in our higher elevations. Snow levels are expected to rise into next week. However, there are several uncertainties with how this all is going to play out. The big questions that will need to be cleared up is where exactly the heaviest bands of precipitation set up in our area and exactly how high those snow levels get. Exact rain and snow amounts are still fairly uncertain, but the coast has a strong potential of seeing several inches of rain. We'll be able to iron out these details likely over the next day or so, so be sure to keep checking back for forecast updates. It does look like things quiet down again by Thursday next week.

Stay up-to-date on the forecast with StormWatch 12 on-air and online. Also, be sure to download our StormWatch 12 weather app.