Short Range Forecast Discussion...Correction NWS Weather Prediction Center College Park MD 632 AM EST Thu Dec 05 2024 Valid 12Z Thu Dec 05 2024 - 12Z Sat Dec 07 2024 ...Heavy lake-enhanced/lake-effect snow downwind from Lakes Erie and Ontario on Thursday and Friday; Moderate to heavy snow over parts of New England on Thursday; light to moderate snow over parts of the Central Appalachians on Thursday and Friday... ...Light to moderate lake-effect snow for the Upper Peninsula of Michigan and the west coast of the Lower Peninsula on Thursday and Friday... ...Temperatures will be 10 to 20 degrees below average over parts of the Ohio Valley and the Mid-Atlantic... A storm over southeastern Canada will move eastward to far eastern Canada by Friday morning. The system will produce heavy lake-enhanced then heavy lake-effect snow downwind from Lakes Erie and Ontario on Thursday and Friday. Additionally, in the wake of the storm, light to moderate lake-effect snow will develop over parts of the Upper Peninsula of Michigan and the west coast of the Lower Peninsula of Michigan on Thursday and Friday. Further, moderate to heavy snow will be created on Thursday over parts of New England. By Friday, scattered light snow will be over New England and then the snow will end by Friday evening. Furthermore, light to moderate snow will develop over parts of the Central Appalachians on Thursday and Friday. Moreover, the strong arctic cold front will sweep across the Mid-Atlantic and the Northeast on Thursday. The boundary will create snow squalls accompanied by intense bursts of heavy snowfall and gusty winds, producing dangerous travel conditions due to whiteouts and icy roads. In addition, wind gusts up to 70 mph will spread into the Central Appalachians, Mid-Atlantic, and Northeast on Thursday. These winds would cause power outages, down tree branches, and result in hazardous commutes. Moreover, after the storm, high pressure over the Northern Plains will move southeastward to the Tennessee Valley by Saturday. The high pressure will usher in cold temperatures over parts of the Ohio Valley and the Mid-Atlantic, bringing temperatures of 10 to 20 degrees below average. Meanwhile, return flow off the Gulf of Mexico will create scattered showers and thunderstorms over parts of the Central Gulf Coast on Thursday. On Friday, scattered showers and thunderstorms will develop over parts of the Southern High Plains. Elsewhere, lingering stagnant air conditions will be 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 late Friday night into Saturday. Ziegenfelder Graphics available at https://www.wpc.ncep.noaa.gov/basicwx/basicwx_ndfd.php