Short Range Forecast Discussion NWS Weather Prediction Center College Park MD 137 AM EST Sun Mar 10 2019 Valid 12Z Sun Mar 10 2019 - 12Z Tue Mar 12 2019 ...Improving conditions for the eastern U.S. by Monday as storm system departs the region and more precipitation returns to the southwestern U.S. by Tuesday... The large low pressure system that has delivered blizzard conditions to much of the Dakotas and Midwest will be crossing the northern Great Lakes by Sunday morning. The strong pressure gradient with this surface low will ensure the continuance of strong and gusty winds on Sunday across much of the north-central U.S. and across the Northeast, and heavy snow is expected across the Lake Superior region as the main surface low exits across Ontario. Significant snow is also expected across interior portions of New England, and freezing rain is also a good possibility across some of the interior valleys of Pennsylvania and upstate New York through early Sunday. Travel disruptions are likely for many of those areas. Although the heaviest rain and strongest storms should be over by the beginning of this forecast period Sunday morning, some lingering showers and thunderstorms are likely across parts of the Gulf Coast region and the Southeast U.S. on Sunday before the cold front passes through the region. Given the progressive nature of the boundary, the flooding potential will be limited. A brief return to quieter weather conditions is expected for early in the week before the next storm system gathers strength across the Southwestern U.S. and then western High Plains by midweek. In terms of temperatures, readings across the Southeast and Mid-Atlantic region will be warmer than average through Monday ahead of the cold front approaching from the Midwest. Across the central part of the nation, a large surface high will keep temperatures near to below average across the Plains and Rockies. Out West, another upper level system moving down the West Coast will bring some rain to parts of California, with rain and mountain snow increasing by Monday afternoon across Southern California and the Southwest. This will lead to a new surface low developing across the Plains just beyond the end of this forecast period on Wednesday. D. Hamrick Graphics available at www.wpc.ncep.noaa.gov/basicwx/basicwx_ndfd.php