Short Range Forecast Discussion NWS Weather Prediction Center College Park MD 258 AM EST Fri Feb 14 2020 Valid 12Z Fri Feb 14 2020 - 12Z Sun Feb 16 2020 ...Snow for the Cascades and the Northern/Central Rockies... ...Temperatures will be 10 to 25 degrees below average from the Northeast to the Upper/Middle Mississippi Valley... Cold high pressure builds in over the Mississippi Valley eastward to the Northern Mid-Atlantic by Saturday then moves off the Northeast Coast by Sunday. Temperatures will be 10 to 25 degrees below average from the Northeast to the Upper/Middle Mississippi Valley. Weak upper-level energy will move across the Great Lakes will aid in produce light lake effect snow down wind from the Great Lakes Through Friday evening. Additional upper-level energy will move across the area late Saturday afternoon into Sunday morning followed by a front crossing the Great Lakes overnight Saturday into Sunday morning. Light snow will develop over parts of the Upper Mississippi Valley early on Saturday morning moving into the Great Lakes Saturday afternoon into evening. Meanwhile, upper-level energy and onshore wind with a plume of moisture will move into the Pacific Northwest . Across Florida, showers and a few thunderstorms will slowly push southward through Saturday near and behind a cold front. Meanwhile, some moisture returning from the Gulf of Mexico could trigger showers along the western Gulf Coast as the high pressure system slides eastward into the Northeast later on Saturday. Ziegenfelder Graphics available at www.wpc.ncep.noaa.gov/basicwx/basicwx_ndfd.php