Flood Watch National Weather Service State College PA 434 AM EST Thu Jan 11 2018 Warren-McKean-Potter-Elk-Cameron-Northern Clinton-Clearfield- Northern Centre-Southern Centre-Tioga-Northern Lycoming-Sullivan- Southern Clinton-Southern Lycoming-Union-Snyder-Montour- Northumberland-Columbia- Including the cities of Warren, Bradford, Coudersport, St. Marys, Ridgway, Emporium, Renovo, DuBois, Clearfield, Philipsburg, State College, Mansfield, Wellsboro, Trout Run, Laporte, Lock Haven, Williamsport, Lewisburg, Selinsgrove, Danville, Sunbury, Shamokin, Bloomsburg, and Berwick 434 AM EST Thu Jan 11 2018 ...FLOOD WATCH IN EFFECT FROM THIS EVENING THROUGH SATURDAY EVENING... The National Weather Service in State College has issued a * Flood Watch for a portion of central Pennsylvania, including the following areas, Cameron, Clearfield, Columbia, Elk, McKean, Montour, Northern Centre, Northern Clinton, Northern Lycoming, Northumberland, Potter, Snyder, Southern Centre, Southern Clinton, Southern Lycoming, Sullivan, Tioga, Union, and Warren. * From this evening through Saturday evening * A period of intermittent rain will begin this evening and last until it turns into a wintry mix and eventually to snow late Friday night and Saturday morning. Rainfall across the watch area will be up to an inch and a half even before the transition to wintry precipitation begins. This heavy rainfall will occur in conjunction with a significant warm up. Eventual totals may reach over two inches by Saturday morning, but some of that will fall as snow or sleet. * Area waterways are covered with ice due to our recent arctic outbreak. This volume of water running into the streams and rivers may lead to large rises on the waterways. The ice may melt initially and break up due to the force of the rising water. This could also lead to ice jam flooding as the ice collects at constrictions, clogging the flow and backing up onto land. PRECAUTIONARY/PREPAREDNESS ACTIONS... Keep an eye on area waterways and be alert for sudden rises. Review flood safety and preparedness information at weather.gov/flood.