Short Range Forecast Discussion NWS Weather Prediction Center College Park MD 310 AM EST Wed Feb 04 2015 Valid 12Z Wed Feb 04 2015 - 12Z Fri Feb 06 2015 ...Heavy rain for the Pacific Northwest... ...Light snow from parts of the Middle Mississippi Valley to the Northeast... ...Temperatures will be 10 to 20 degrees below average over parts of the Upper Midwest... A front extending from the Great Lakes to the Central Plains will move eastward to the East Coast and merge with a boundary forming over the Southeast Coast by Thursday morning. Snow will streak out over parts of the Central Rockies to the Middle Missouri Valley by Wednesday morning as upper-level energy swings eastward propelling the aforementioned front eastward. Simultaneously, snow will develop over parts of the Northeast on Wednesday morning, too. Moisture will intersect the front producing light snow from parts of the Middle Mississippi Valley to the Northern Appalachians on Wednesday evening moving into the Northeast by Thursday morning. The snow will taper off to the eastern portion of Maine by Thursday evening. Meanwhile, upper-level energy over the Western Gulf Coast will move eastward to the Southeast while weakening by Thursday evening. In addition, the energy will produce a front over the Southeast that will link-up with the front over the Northeast by Thursday morning. The system will produce light to moderate rain over parts of the Central/Eastern Gulf Coast moving to the Southeast and Eastern Gulf Coast by Wednesday evening. The rain will move into Southern Florida by Thursday evening. Upper-level energy will move into upper-level ridging over the West Coast. The energy will aid in producing rain over parts of the Pacific Northwest on Wednesday with snow over parts of the Northern Intermountain Region by Wednesday evening. On Thursday a new surge of moisture and energy movies into the West Coast producing light to moderate rain over parts of Northern California and the Pacific Northwest. Snow levels will rise over parts of the Northern Intermountain Region/Northern Rockies on Thursday. Additionally, a warm front will move into the Upper Great Lakes by Thursday evening producing light snow over parts of the Region. Ziegenfelder Graphics available at www.wpc.ncep.noaa.gov/basicwx/basicwx_wbg.php