Short Range Forecast Discussion NWS Weather Prediction Center College Park MD 258 PM EDT Mon Mar 16 2020 Valid 00Z Tue Mar 17 2020 - 00Z Thu Mar 19 2020 ...A Strong closed low to produce heavy snows through the Sierra and below average temperatures from California into the Southwest... ...Thunderstorms will bring heavy rains, potential flooding and severe weather across portions of the Southern Plains Tuesday into Wednesday... ..A broad area of much above average temperatures will develop mid week from the Plains into the East.. An anomalously strong mid to upper level low will be pushing only slowly eastward over the next two days from off the California coast this evening, inland Tuesday and Wednesday across California, the Great Basin and Southwest. Heavy snows will continue tonight into early Tuesday through the Sierra with widespread totals in the foot to 2 foot range likely. Heavy snows are also possible later Wednesday through the Wasatch of Utah, southward into the Mogollon Rim region of Arizona and this storm pushes eastward. Lower elevation areas will have the potential for moderate to locally heavy rainfall amounts across portions of California into the Southwest. This strong mid to upper level closed low will also support a broad region of much below average temperatures over the next two day with high temperatures 10 to 20 degrees below average across California, the southern Great Basin and the Southwest. As this strong upper level low moves eastward it will strengthen the moist southerly flow across the Southern and Central Plains. This will lead to an increasing chance of thunderstorms, heavy rains, flooding and severe weather Tuesday and Wednesday from the Southern Plains into the Lower Missouri Valley and Mid Mississippi Valley. In contrast to the broad area of below average temperatures expected across the west over the next two days, much above average temperatures will be developing mid week from the Plains, spreading eastward through the Mississippi Valley, Ohio Valley, Tennessee Valley and into the East. The only region of the East with any winter weather potential over the next two days will be far northern New England where light to moderate snowfall amounts are possible on Tuesday. Oravec Graphics available at www.wpc.ncep.noaa.gov/basicwx/basicwx_ndfd.php