Short Range Forecast Discussion NWS Weather Prediction Center College Park MD 250 AM EST Thu Feb 06 2014 Valid 12Z Thu Feb 06 2014 - 12Z Sat Feb 08 2014 ...Heavy snow for the Oregon Cascades and the California Sierras... ...Temperatures will be 20 to 40 degrees below average from the foothills of the Rockies to the Mississippi Valley... Energy moving onshore over the California Coast will race to the Southern Plains by Friday evening. Onshore flow associated with the system will aid in producing coastal rain and higher elevation snow over California and Oregon through to Friday, with moderate to heavy precipitation by Friday evening. Snow will also extend into parts of the Great Basin/Central Rockies along the associated stationary front. Snow will blossom over parts of the Southwest and Southern Rockies on Friday as well. In addition, upper-level energy over Western Texas will advance quickly eastward to off the Mid-Atlantic Coast by Friday morning. The energy will produce snow over parts of Texas on Thursday morning. Upper-level jet dynamics along the Gulf Coast will aid in producing scattered rain over parts of the Central/Eastern Gulf Coast and the Southeast Thursday evening into Friday evening. Elsewhere, cold high pressure over the Northern High Plains/Central Plains will move eastward to the Ohio Valley by Friday evening. Ziegenfelder Graphics available at www.wpc.ncep.noaa.gov/basicwx/basicwx_wbg.php