Short Range Forecast Discussion NWS Weather Prediction Center College Park MD 239 AM EST Tue Nov 05 2019 Valid 12Z Tue Nov 05 2019 - 12Z Thu Nov 07 2019 ...Rain and snow from the Northern High Plains into the Great Lakes with locally heavy snow bands along the U.P. of Michigan... ...Temperatures remaining below average from the Northern Plains into the Great Lakes region... The weather pattern across the lower 48 will remain fairly quiet for most regions over the next two days as any significant moisture remains well offshore owing to large mid-upper level troughing over the eastern two-thirds of the nation. High temperatures will run roughly 10-20 degrees below average from the Northern High Plains into the Great Lakes region as a series of weak impulses track across the northern U.S.. Given the lack of higher moisture in place, the resulting precipitation will be light. A mixture of rain and snow will depart from the Great Lakes region tonight as low pressure tracks into Quebec. Meanwhile a second system will begin to organize over the North-Central U.S. on Tuesday with a secondary surge of cold air from Canada in its wake. Light snow will spread from Montana into the Upper Midwest before a strong ridge of high pressure dips into Montana and the Dakotas. High temperatures on Wednesday are expected to stay below freezing beneath the ridge as snow shifts south and east. Rain is expected to increase ahead of the cold front over parts of drought-stricken Texas and Oklahoma on Wednesday. West of the Rocky Mountains, temperatures will remain warm, generally 10-20 degrees above average. Limited mixing of surface-based air with air aloft will result in poor air quality over portions of Washington, Oregon and Idaho as well as sections of coastal California into Wednesday. Limited time outdoors is recommended for those sensitive to the poor air quality. Ziegenfelder/Otto Graphics available at www.wpc.ncep.noaa.gov/basicwx/basicwx_ndfd.php