Short Range Forecast Discussion NWS Weather Prediction Center College Park MD 243 AM EST Sat Mar 02 2019 Valid 12Z Sat Mar 02 2019 - 12Z Mon Mar 04 2019 ...Heavy rain possible over parts of the Southeast/Tennessee Valley... ...Heavy snow possible from the Central Appalachians to New England... ...Temperatures will be 20 to 48 below average over the Northern Plains into the Central Plains... ...Heavy snow over the Central Rockies... A storm south of New England will move northeastward out over the Atlantic just missing New England on Saturday. The system will produce snow over parts of the Northern Mid-Atlantic into Southern New England and rain along the Northern Mid-Atlantic Coast ending by Saturday evening. In addition, upper-level energy over the Great Lakes will move eastward off the New England Coast overnight Saturday. The energy will produce light snow over the Great Lakes that will move into the Lower Great Lakes by Saturday evening. The snow will move into the Northeast overnight Saturday winding down by Sunday. Meanwhile, upper-level energy moving onshore over California will move eastward to off the Northern Mid-Atlantic Coast by Monday. The storm will produce rain and higher elevation snow over California and rain/ snow over parts of the Great Basin through Sunday morning. Snow will move into the Central Rockies on Saturday and developing over parts of the Northern/Central Plains by Saturday evening. The snow will expand into parts of the Southern Plains and Middle Mississippi Valley overnight Saturday continuing to march eastward into the Ohio Valley on Sunday. On Sunday afternoon, the snow will develop over parts of the Mid-Atlantic. Overnight Sunday, the snow will enter into New England and the Northern Appalachians. The snow will continue over the Northeast into the Northern Mid-Atlantic through Monday morning. As the upper-level energy moves out of the Rockies, moisture from the Western Gulf of Mexico will stream northward over the Southern Plains into the Lower Mississippi Valley and continue eastward then move off the Southeast Coast by Sunday evening. The moisture will aid in producing showers and thunderstorms over parts of the Western Gulf Coast by Saturday evening expanding into the Lower Mississippi Valley by Sunday morning. On Sunday, the showers and thunderstorms will move into the Southeast and off the Southeast Coast by Monday. Elsewhere, onshore flow and weak upper-level impulses will aid in producing rain and higher elevation snow over parts of California into the Great Basin that will wane overnight Sunday. Ziegenfelder Graphics available at www.wpc.ncep.noaa.gov/basicwx/basicwx_ndfd.php