Short Range Forecast Discussion NWS Weather Prediction Center College Park MD 244 AM EST Thu Jan 30 2014 Valid 12Z Thu Jan 30 2014 - 12Z Sat Feb 01 2014 ...Heavy snow for the Central Rockies and the Sierras... ...Temperatures will be 10 to 30 degrees below average for the Upper Midwest... A quasi-stationary front sets up across the Great Lakes to the Central Plains/Rockies. The first batch of upper-level energy moves across the Great Lakes into Southeastern Canada by Friday. Snow will develop along the front over the Upper Mississippi Valley/Upper Great Lakes and move into Southern Canada and parts of the Lower Great Lakes, ending by Friday morning. The second batch of energy over the Eastern Pacific will move to the Central/Southern Rockies by Friday evening. The energy will trigger snow over the Great Basin into the Central Rockies that will begin to move onto the Central Plains/Middle Mississippi Valley by Friday morning. Rain will develop over parts of Central California with snow at higher elevations on Thursday morning, tapering off the scattered snow over parts of the Sierras on Friday. On Friday, moisture will pool along the front triggering light rain over parts of the Middle/Lower Mississippi Valley and parts of Oklahoma. A band of rain/freezing rain will develop over parts of the Central Plains, Middle Mississippi Valley, and the Ohio Valley on Friday evening. Snow will break out over parts of the Northern Ohio Valley into parts of the Northern Appalachians and continue over parts of the Central Plains. A lingering front and upslope flow will produce snow over parts of the Northern High Plains/Northern Rockies on Thursday, that will taper off to scattered areas of snow on Friday. In addition, onshore flow off the Pacific will produce coastal rain and higher elevation snow over parts of the Pacific Northwest through Saturday evening. Elsewhere, a lingering front and upper-level energy plus upper-level jet dynamics will develop rain and showers/thunderstorms over Southern Florida through Friday evening. Ziegenfelder Graphics available at www.wpc.ncep.noaa.gov/basicwx/basicwx_wbg.php