Short Range Forecast Discussion NWS Weather Prediction Center College Park MD 236 AM EST Tue Mar 05 2019 Valid 12Z Tue Mar 05 2019 - 12Z Thu Mar 07 2019 ...Heavy snow for the Sierra... ...Heavy rain possible for Coastal California will lead to excessive rainfall over parts of Southern California... ...Temperatures east of the Rockies will start to moderate as Temperatures will be 10 to 25 degrees below average... Upper-level energy and cold air will aid in producing lake effect snow downwind from the ice free areas of the Great Lakes through Thursday morning. A deep upper-level low over the Pacific will move onshore over California on Wednesday then moves farther inland to the Northern/Central Plains by Thursday. Moisture associated with the system will stream into California and begin to wane overnight Wednesday. The moisture and energy will aid in producing rain, heavy at times, over parts of California and snow, heavy at times, over the higher elevations of California through Thursdays morning while beginning to wane. The rain and higher elevation snow will move into the Great Basin/Pacific Northwest overnight Tuesday. Snow will expand into the Northern Intermountain Region and the Central Rockies by Wednesday. On Wednesday, snow will expand into the Northern Rockies continuing into Thursday. As the energy moves into the Northern/Central Plains snow will develop over the Northern/Central Plains overnight Wednesday and the snow expands into parts of the Middle Mississippi Valley by Thursday. The energy will also aid in drawing moisture off the Gulf of Mexico on Wednesday morning into Thursday producing rain over parts of the Western Gulf Coast on Thursday. Ziegenfelder Graphics available at www.wpc.ncep.noaa.gov/basicwx/basicwx_ndfd.php