Short Range Forecast Discussion NWS Weather Prediction Center College Park MD 309 PM EST Thu Feb 09 2017 Valid 00Z Fri Feb 10 2017 - 00Z Sun Feb 12 2017 ...Heavy snow possible over parts of the Cascades and the Sierras... ...Heavy snow over parts of the Central Rockies... ...Snow possible from the Upper Great Lakes to parts of the Northeast... Rapidly deepening low off the Northeast Coast will continue to move away from New England. In the wake of the low, lake effect snow will develop downwind from the Great Lakes through Friday afternoon. Meanwhile, a plume of moisture moving into Central California will slowly move southward into Northwestern Mexico and the wind over Northern/Central California will become offshore by Saturday. With the moisture moving inland over the West Coast, rain will develop over Central/Northern California and the Northwest extending inland to the Northern Rockies and parts of the Great Basin on Thursday evening. Overnight Thursday, the snow levels will begin to lower as an upper-level trough moves inland over the West Coast producing snow over parts of the Northern Rockies and the Cascades. In addition, rain will move southward into Southern California overnight Thursday into Friday and snow will also develop over the higher elevation. On Friday, rain will move into parts of the Great Basin. Overnight Friday, the snow levels lower over the Great Basin as the rain changes over to snow. Snow will also develop over parts of the Central Rockies Friday evening into Saturday. Ziegenfelder Graphics available at www.wpc.ncep.noaa.gov/basicwx/basicwx_ndfd.php