Short Range Forecast Discussion NWS Weather Prediction Center College Park MD 359 AM EDT Sat Apr 01 2017 Valid 12Z Sat Apr 01 2017 - 12Z Mon Apr 03 2017 ...A wintry mix of snow, rain, and ice is expected to continue across the Northeast today, changing to snow tonight... ...Severe thunderstorms are possible across portions of the Southern Plains today, pushing eastward into the Lower Mississippi Valley Sunday... ...Snow will slowly taper off throughout the day across the Western Great Basin, Central and Southern Rockies, and portions of the Southwest... The potent low pressure system that impacted much of the eastern U.S. is now moving off shore, with high pressure and drier conditions expected to take hold east of the Mississippi River. The one caveat will be the Northeast, where return flow will continue to combine with cold air moving southward from Canada, resulting in a mix of rain, snow, and ice across much of the region. This will eventually change to all snow as temperatures fall below freezing overnight, and then taper off during the day Sunday as the low pressure system continues to propagate eastward and away from the coast. Another low pressure system will continue to slowly traverse the Southern Plains over the next couple of days. The position of this low will allow for deep warm and moist southerly flow inland from the Gulf of Mexico ahead of the associated cold front. This, in turn, will lead to rain across much of the Southern And Central Plains, as well as embedded thunderstorms. For today, the strongest storms will be along and just east of the dry line which will set up across southwest Texas. The Storm Prediction Center has highlighted much of South-Central Texas northward into Southern Oklahoma as being in a slight risk for severe thunderstorms capable of producing damaging winds and large hail. By tomorrow, the system will move eastward and will merge with another warm front moving onshore. This will increase the severe thunderstorm threat, and may lead to isolated tornadic supercell development. As such, the Storm Prediction Center has highlighted southeast Texas and southwest Louisiana in a moderate risk for severe weather tomorrow. Surrounding areas will be in a enhanced and slight risk for severe weather as well. Please refer to to the Storm Prediction Center's website for more information. Meanwhile, on the northwest side of the above mentioned area of low pressure, snow is expected to slowly taper off today across the Western Great Basin, Central and Southern Rockies, and portions of the Southwest. Winter Weather Advisories and Winter Storm Warnings are in effect for portions of this region where heaviest snow accumulations are expected. Wix Graphics available at www.wpc.ncep.noaa.gov/basicwx/basicwx_ndfd.php