A storm system moving into the West from the Pacific Ocean will keep rain and snow falling across the area. Flood Watches have been issued in Northern Idaho and Northeast Washington for heavy rainfall. Heavy snow is possible from the Cascades into the Sierra, with up to a foot of accumulations. Winter Weather Advisories have been issued. The wind will be strong as well, with gusts to near 60 mph.
Into the start of this weekend, significant amounts of snow and rain will fall over the region. A foot of snow is likely in the mountains, with higher accumulations for the highest peaks. The coast could see up to 4″ of rainfall.
The Jet Stream is strong, with lots of upper level energy headed into the region. Water vapor imagery show a strong low in the Pacific Ocean that is forecast to move ashore, bringing the support aloft for heavy rain and snow.
At the surface, a cold front is already moving through the region. The system will continue to slowly push across the West with heavy precipitation lasting through the rest of the work week. By the weekend, a change in the pattern aloft will push high pressure over the area. This will bring in drier forecast.
For WeatherNation: Meteorologist Mace Michaels