Short Range Forecast Discussion NWS Weather Prediction Center College Park MD 429 PM EDT Fri Oct 21 2016 Valid 00Z Sat Oct 22 2016 - 00Z Mon Oct 24 2016 ...Heavy rain possible over parts of Northern Appalachians/Lower Great Lakes... ...Wet snow possible over parts of northeastern New York State... Deepening low pressure along the Northeast Coast will move northward into Southeastern Canada by Sunday. Rain will develop over parts of the Northeast/Eastern Ohio Valley to the Southern Mid-Atlantic that will end over parts of the Ohio Valley/Mid-Atlantic by Saturday afternoon. A small area of embedded thunderstorms may occur along parts of the Mid-Atlantic to Southern New England Coast through Saturday morning. Rain will also continue over parts of the Northeast through Sunday. In addition, wet snow will develop over parts of northeastern New York State into parts of Vermont Saturday evening into Sunday. Meanwhile, a front extending from parts of the Upper Mississippi Valley/Northern Plains westward to parts of the Northern High Plains/Northern Rockies into parts of the Great Basin will move eastward to the Upper Great Lakes and southward to the Central Plains/Middle Mississippi Valley by Sunday. Rain will develop ahead of the stationary boundary over parts of the Upper Mississippi Valley on Friday evening into early Saturday morning. Rain will also develop over parts of the Pacific Northwest into the Northern Rockies through Saturday afternoon. An area of rain will move into parts of the Northern High Plains on Saturday morning moving into parts of the Upper Mississippi Valley/Upper Great Lakes by Sunday morning. Additionally, another front will begin to move onshore over the Pacific Northwest on Sunday with rain moving onto the Northwest Coast overnight Saturday into Sunday. Ziegenfelder Graphics available at www.wpc.ncep.noaa.gov/basicwx/basicwx_wbg.php