This hazardous weather outlook is for northeast and north central Colorado. .DAY ONE...Today and Tonight A storm system arrives by tonight, bringing numerous showers and a couple thunderstorms into the forecast area. The showers and storms will first develop over the mountains south of I-70 this afternoon, and then spread slowly north and east late this afternoon through the overnight. Additionally, areas above 9,000 feet will receive snow tonight into Sunday morning, with 3 to 8 inches of accumulation in the Front Range Mountains south of Rocky Mountain National Park and higher mountains in Summit County. Those traveling in the mountains along I-70 and US 40 should prepare for winter travel conditions and slick roads over the higher mountain passes. Rainfall amounts on most of the plains should range between a quarter and three quarters of an inch, with the heavier amounts favoring areas south and southeast of Denver. Much lighter precipitation will occur northward near the Wyoming border. .DAYS TWO THROUGH SEVEN...Sunday through Friday Scattered showers will linger through the first half of the day Sunday, with cool temperatures. Warmer and drier conditions are forecast for Monday, before a weak system brings a chance of showers Monday night into Tuesday. Dry conditions are forecast for the second half of the week. .SPOTTER INFORMATION STATEMENT... Spotter activation will not be needed today or tonight. Any reports of mountain snowfall will be appreciated.