Short Range Forecast Discussion NWS Weather Prediction Center College Park MD 359 PM EDT Fri May 08 2020 Valid 00Z Sat May 09 2020 - 00Z Mon May 11 2020 ...There is a slight risk of severe thunderstorms over the Central Gulf Coast... ...Arctic blast will make for a chilly & blustery Mother's Day Weekend for most eastern regions, in contrast to near record heat continues along the West Coast... ...Measurable snowfall possible in the Northeast & Great Lakes with heavy snow for Northern New England... A storm system over the Mid-Atlantic will move northeastward to the Gulf of Maine by Saturday morning and into the Canadian Maritimes by Saturday evening. The system will produce rain from parts of the Mid-Atlantic to parts of the Tennessee Valley and Southern Appalachians. In addition, snow will develop over parts of the the Ohio Valley, Lower Great Lakes, and the Northeast that will weaken by Saturday morning only to return on Saturday afternoon and end overnight Saturday. Near the associated front over the Central Gulf Coast the air will be unstable enough to produce an area of severe thunderstorms over the region through Saturday morning. The Main hazard with these storms will be damaging wind with isolated large hail. The heavy rain associated with the storms may produce localized isolated flash flooding on Friday evening. Cold high pressure over South-Central Canada will move to parts of the Central Plains by Sunday morning. The high will have an Arctic air-mass along and east of the Mississippi River, and is expected to usher in cold temperatures and blustery conditions this weekend. Numerous Freeze Watches and Warnings have been posted from the Midwest to the Northeast with record low temperatures possible over the weekend, most notably Saturday morning. In addition to the winter-like temperatures, parts of the Great Lakes, Appalachians, and Northeast will witness wintry precipitation Friday evening and into Saturday as the aforementioned surface low pressure system rapidly intensifies off the New England coast Saturday morning. Snow could fall heavily at times with several inches of accumulating snowfall possible in the Northern and Central Appalachians. Temperatures will moderate slightly but remain well below normal across much of the eastern U.S. on Mother's Day. While moms in the East try to keep warm, moms in the West will bask in summer-like conditions throughout the weekend. This is due to an extensive upper-level ridge stationed over the West Coast and Great Basin. Parts of Central and Northern California could break daily record high temps today with the Pacific Northwest getting its chance for daily record heat on Saturday. Abnormally warm temperatures will look to stick around through Mother's Day but cooler temperatures look to return next week. Ziegenfelder Graphics available at www.wpc.ncep.noaa.gov/basicwx/basicwx_ndfd.php