Short Range Forecast Discussion NWS Weather Prediction Center College Park MD 253 PM EST Wed Feb 08 2017 Valid 00Z Thu Feb 09 2017 - 00Z Sat Feb 11 2017 ...There is a slight risk of severe thunderstorms over parts of the Southern Appalachians/Tennessee Valley and the Southeast... ...Heavy snow for the Cascades and to a lesser extent the Sierras/Northern Rockies... ...Heavy snow possible across parts of Northern Mid-Atlantic and Southern New England... ...Heavy rain possible over parts of Northern California and the Pacific Northwest... ...Lake effect snow over parts of the Upper Great Lakes... Yet another strong low pressure system will move towards the Pacific Northwest over the next few days. This will bring another surge of moisture to much of the region, which has already been heavily impacted by heavy rains and high snow amounts. More heavy rain is expected across much of northern California and coastal regions of Washington and Oregon starting this afternoon. Rainfall amounts of 2 to 6 inches are expected in these regions. Furthermore, warmer temperatures will cause melting of large amounts of snow, which will lead to flooding concerns. Flood warnings and watches are in effect for much of northern California, Oregon, and even northern Nevada and southern Idaho. Along the northern periphery of this system, a wintry mix of snow, rain, and ice is expected, with Winter Storm Warnings and Watches stretching from Washington to western Montana. A continuation of the previous low pressure system to move through the Pacific Northwest will make its way into the Rockies today, bringing another round of heavy snow to this region. Locally, up to 2 feet of snow is expected through this evening in the highest terrain. Meanwhile, a surge of warm air will encompass much of the Gulf Coast and Atlantic Coast ahead of the approaching cold front today. This could once again lead to many locations near the coast reaching or possibly even exceeding either record high minimum temperatures, or record high maximum temperatures for the 8th of February. Ziegenfelder Graphics available at www.wpc.ncep.noaa.gov/basicwx/basicwx_ndfd.php