Short Range Forecast Discussion NWS Weather Prediction Center College Park MD 400 AM EDT Mon Mar 15 2021 Valid 12Z Mon Mar 15 2021 - 12Z Wed Mar 17 2021 ...Major winter storm winding down over the central Rockies to the north-central High Plains... ...Another low pressure system is forecast to bring more severe thunderstorms and heavy rain across the central Plains Tuesday and Wednesday, with additional snowfall across the central Rockies... ...Critical fire danger continues across parts of New Mexico and western Texas... A large and energetic low pressure system enveloping the mid-section of the country is showing signs of winding down after delivering one to two feet of snow to the central High Plains with higher amounts along the Front Range. Blizzard conditions in parts of the area have since subsided as the storm center slowly makes its way eastward into the central Plains. Nevertheless, a band of moderate snow with some mixed precipitation is moving across the Midwest and should reach the upper Midwest and lower Michigan by tonight. Some mixed precipitation should also move into the central Appalachians tonight well ahead of the weakening low pressure system. Across the Deep South, expect some thunderstorms to move into the region today and then lingers into Tuesday ahead of a weakening cold front. Rain and some embedded thunderstorms should move through the Mid-Atlantic states on Tuesday before clearing out Tuesday night as a new low pressure center forms and moves offshore. Meanwhile, the active weather pattern will appear to repeat itself as another upper trough is forecast to move through the Southwest. This will bring another around of mountain snow and lower elevation rain from west to east starting from California today followed by the southern Great Basin and the Four-Corner region on Tuesday. By Tuesday night into Wednesday morning, it appears that another low pressure will form across the southern Plains. Dry and strong downslope winds south of the storm track will continue to promote elevated to critical fire danger across parts of the southern High Plains. Outside of the major storm system, some light wintry precipitation is expected to wind down over interior New England tonight as reinforcing shots of colder air move in from Canada. Elsewhere, much above normal temperatures are forecast for the Deep South and Midwest ahead of the strong cold front. Out West, an active cold front from the eastern Pacific is expected to bring the next round of unsettled weather into much of the region through Monday. The Sierra Nevada should see heavy snow impacting the region tonight into Monday, as rain spreads into the lower elevations of northern and central California. The system will then spread mountain snow across the Great Basin and northern Arizona as well as the northern Rockies Monday night when colder air settles from west to east across the western U.S. By early on Tuesday, much of the Four-Corners region should see snow arriving while a low pressure system begins to take shape in the vicinity. This low pressure system will quickly organize into a mid-latitude cyclone as it pulls another stream of Gulf moisture up and into the Deep South Tuesday night, leading to increased instability and the chance for thunderstorm activity. Snow will pickup on the backside of this system over parts of the the Rockies and north/central High Plains. Kong Graphics available at www.wpc.ncep.noaa.gov/basicwx/basicwx_ndfd.php