Short Range Forecast Discussion NWS Weather Prediction Center College Park MD 259 AM EST Sun Mar 03 2019 Valid 12Z Sun Mar 03 2019 - 12Z Tue Mar 05 2019 ...Heavy snow possible from the Central Appalachians to Northern New England... ...Heavy rain possible over the Southeast... ...Slight risk of severe thunderstorms over the Southeast into Central Gulf Coast... ...Temperatures will be 20 to 45 degrees below normal over the High Plains into the Mississippi Valley... A developing storm over the Southern Mid-Atlantic will move northeastward to just off Southern New England by Monday and moving into the Canadian Maritimes by Monday evening. The system will produce snow over parts of the Central Appalachians that will expand into the Northern Mid-Atlantic by Sunday afternoon. The snow will expand into the Northeast by Sunday evening and continue over the region through Monday evening. In addition, showers and thunderstorms will develop over parts of the Southern Plains into the Lower Mississippi and Tennessee Valleys. Showers and thunderstorms will also develop over parts of the Southern Mid-Atlantic. The showers and thunderstorms will move eastward off the Southeast Coast by Monday morning. Meanwhile, upper-level energy over the Middle Mississippi Valley into parts of the Southern High Plains will produce snow over parts of the Central Rockies eastward into the Middle Mississippi Valley that will move eastward into the Ohio Valley ending overnight Sunday. Disorganized upper-level energy will move eastward from the Pacific into the Texas Panhandle by Tuesday. The energy will aid in producing rain and higher elevation snow over parts of California eastward to the Central Rockies through Monday evening. Ziegenfelder Graphics available at www.wpc.ncep.noaa.gov/basicwx/basicwx_ndfd.php