Short Range Forecast Discussion NWS Weather Prediction Center College Park MD 419 AM EDT Mon Mar 28 2022 Valid 12Z Mon Mar 28 2022 - 12Z Wed Mar 30 2022 ...Much below-average temperatures are expected from the Great Lakes into the Northeast, with records possible... ...Lake effect snow to remain active off the Lower Great Lakes, beginning to diminish overnight Monday... ...There is a Critical Risk of fire weather over parts of the Southern High Plains... ...Rain and snow return to the West... A deep upper-level trough over the Great Lakes to the Northeast will allow temperatures to be 15 to 30 degrees below average over the region. As a result, the temperatures will be a record or tied for a record cold high temperatures over parts of the Northeast Coast, which will start to moderate on Tuesday. In addition, the associated upper-level energy will aid in producing lake effect snow over the Great Lakes and upslope snow for Northern New England through late Monday night when the snow will end, from west to east. Meanwhile, a deep upper-level low will begin to move onshore over California, moving inland to the Plains by Wednesday. Therefore, light rain will develop over most of the West Coast, with moderate snow over the Sierra Nevada Mountains on Monday. Furthermore, a stream of moisture will flow into Southern California, producing a Marginal Risk of excessive rainfall on Monday. Overnight Monday into Tuesday, the rain and higher elevation snow will move the Northern/Central Rockies and Great Basin/Southwest, ending mainly by Wednesday. As the storm moves out of the Rockies on Tuesday, moisture will start to flow northward over the Plains and Mississippi Valley. The moisture will aid in producing showers and thunderstorms over parts of the Central/Southern Plains and adjacent parts of the Middle/Lower Mississippi Valley. Some of the thunderstorms will become severe. Therefore, from Tuesday into Wednesday morning, the SPC has issued a Slight Risk of severe thunderstorms over parts of the Central/Southern Plains and adjacent parts of the Middle/Lower Mississippi Valley. The hazards associated with these thunderstorms are frequent lightning, severe thunderstorm wind gusts, hail, and a few tornadoes. Moreover, the WPC has issued a Marginal Risk of excessive rainfall with these thunderstorms over the area on Tuesday into Wednesday morning. Furthermore, rain and snow will develop over parts of the Northern Plains. An area of light rain/freezing rain will develop over a wide area from the Upper Mississippi Valley to the Great Lakes and parts of the Central Appalachians overnight Tuesday into Wednesday. In addition, the SPC has issued a Critical Risk of fire weather over parts of the Southern High Plains Monday into Tuesday morning due to gusty winds, low relative humidity, and dry fuels. The threat of a Critical Risk of fire weather expands on Tuesday into Wednesday morning over most of the parts of the Southern High Plains. Ziegenfelder Graphics are available at https://www.wpc.ncep.noaa.gov/basicwx/basicwx_ndfd.php