Short Range Forecast Discussion NWS Weather Prediction Center College Park MD 254 PM EST Wed Feb 15 2017 Valid 00Z Thu Feb 16 2017 - 00Z Sat Feb 18 2017 ...Heavy rain possible over parts of the West Coast... ...Heavy snow possible over the Sierras... ...Heavy snow possible over parts of Northern New England... ...Lake effect snow to end downwind from the Great Lakes... Deepening low pressure off New England Coast will slowly move northeastward into Eastern Canada by Friday. The system will produce snow over parts of the Northeast through Thursday evening. In the wake of the storm, lake effect snow will develop downwind from the Great Lakes ending over the Upper Great Lakes by Thursday afternoon and the Lower Great Lakes overnight Thursday. Ziegenfelder Graphics available at www.wpc.ncep.noaa.gov/basicwx/basicwx_ndfd.php