Short Range Forecast Discussion NWS Weather Prediction Center College Park MD 253 AM EST Tue Dec 03 2024 Valid 12Z Tue Dec 03 2024 - 12Z Thu Dec 05 2024 ...Heavy snow for the Upper Peninsula of Michigan and the northern Lower Peninsula on Tuesday and Wednesday... ...Lake-effect and lake-enhanced snow downwind from Lakes Erie and Ontario on Tuesday and Wednesday; Moderate to heavy snow over parts of Northern New England; light to moderate snow over parts of the Central Appalachians on Wednesday... ...Temperatures will be 10 to 15 degrees below average over parts of the Ohio Valley, the Mid-Atlantic, and the Southeast... On Tuesday, high pressure over the Middle Mississippi Valley will slowly move southeastward off the Southeast Coast by Wednesday night. The high pressure will create cold temperatures over parts of the Ohio Valley, the Mid-Atlantic, and the Southeast, bringing temperatures of 10 to 15 degrees below average. Meanwhile, low pressure over West-Central Canada will move southeastward to Quebec, Canada, by Thursday. The storm will produce heavy snow over the Upper Peninsula of Michigan and the northern Lower Peninsula of Michigan through Thursday. Moreover, lake-effect snow will continue downwind from Lakes Erie and Ontario on Tuesday. Them on Wednesday, moderate to heavy lake-enhanced snow develops downwind of Lakes Erie and Ontario through Thursday. Furthermore, light snow will develop over parts of the Northern Plains/Upper Mississippi Valley Tuesday through Thursday. Moreover, as the front moves over the Ohio Valley into the Northeast/Mid-Atlantic, light to moderate snow will develop over parts of the Ohio Valley and the Central Appalachians on Wednesday into Thursday. Additionally, moderate to heavy snow will develop over parts of Northern New England on Wednesday. Light to moderate snow will develop over other parts of Southern New England and the Northeast. Rain will also develop over the coastal parts of New England. Moreover, weak return flow off the Gulf of Mexico will create scattered showers and thunderstorms over parts of the West/Central Gulf Coast through Wednesday and rain over parts of the Lower Mississippi/Tennessee Valleys and Southeast Wednesday into Thursday. Elsewhere, upper-level ridging will create stagnant air conditions over parts of the Pacific Northwest, leading to areas of dense fog and poor air quality. However, an approaching front over the Eastern Pacific will usher moisture into the Pacific Northwest, creating light rain over parts of the Northwest Coast Wednesday night into Thursday. Furthermore, a High Wind Watch will be in effect over parts of the Northern Rockies through late Tuesday morning. Ziegenfelder Graphics available at https://www.wpc.ncep.noaa.gov/basicwx/basicwx_ndfd.php