Short Range Forecast Discussion NWS Weather Prediction Center College Park MD 310 AM EST Mon Feb 03 2014 Valid 12Z Mon Feb 03 2014 - 12Z Wed Feb 05 2014 ...Heavy rain possible over parts of the Northern Mid-Atlantic... ...Pockets of snow or sleet/freezing rain could develop across parts of the Tennessee Valley... ...Temperatures will be 15 to 30 degrees below average over the Northern High Plains... Multiple waves of low pressure will move along a quasi-stationary boundary across the Southeastern portion of the country. The first wave of low pressure over Western North Carolina will move quickly out over the Western Atlantic by Monday evening. The system will produce moderate snow over parts of the Northern Mid-Atlantic moving into Southern New England by Monday evening. Moderate to heavy rain will also develop over parts of Southern Mid-Atlantic and Central/Southern Appalachians that will likewise move eastward off the Mid-Atlantic Coast by Monday night. Pockets of rain/freezing rain will develop over parts of the Tennessee Valley on Monday morning. By Monday evening, light rain will be over parts of the Southeast. The second wave of low pressure will develop over parts of the Western/Central Gulf Coast on Tuesday morning and move northeastward to the Tennessee Valley by Tuesday evening. Moisture from the Gulf of Mexico will reach northward to the Ohio Valley on Tuesday. Showers and thunderstorms will develop along the Central Gulf Coast Tuesday morning, expanding northward into the Tennessee Valley by Tuesday evening. Moderate snow will develop over parts of the Ohio Valley into parts of the Northern Mid-Atlantic by Tuesday evening. Moderate to heavy rain will develop over parts of the Southern Ohio Valley into the Mid-Atlantic also by Tuesday evening. Additionally on Tuesday evening, a pocket of rain/freezing rain over southeastern portion of the Middle Mississippi Valley. Meanwhile, upper-level energy over the West Coast will move eastward to the Middle Mississippi Valley/Central Plains by Tuesday. The energy will produce snow over parts of the Intermountain Region into parts of the Northern Rockies/Northern High Plains on Monday, with some coastal rain along parts of the Pacific Northwest Coast. In addition, snow will develop over parts of the Great Basin into the Central Rockies. The snow will consolidate over the Central Rockies and onto the parts of the Central/Southern Plains by Tuesday morning before reducing in areal coverage to the Central Rockies by Tuesday evening. Rain will also develop over parts of the Southern Plains on Tuesday morning, with a small pocket of rain/freezing rain over parts of Southeastern Oklahoma. Elsewhere, rain an embedded thunderstorms will develop over part of Southern California Coast on Monday morning, due in part to an upper-level low. Ziegenfelder Graphics available at www.wpc.ncep.noaa.gov/basicwx/basicwx_wbg.php