Another round of wintry precipitation is expected for the Eastern US Sunday and Monday as a storm system currently moving into California moves east. This storm system is expected to have a west-to-east axis of precipitation near a stalled frontal boundary along which the storm will track. At this time the highest amounts of precipitation are expected to be near the Ohio River east toSouth Central Pennsylvania, with amounts dropping off further north and south. This region…the Ohio Valley into the mid Atlantic…also has the potential for mixed precipitation with the possibility of an extended period of sleet and/or freezing rain resulting in significant ice accumulations.
There is still quite a bit of uncertainty in this forecast. These forecasts could change over the weekend if there are indications that the precipitation axis and/or the precipitation type transition zone will shift further north or south. Specifically for Blair County… As of right now theres at least a 50% chance of seeing 6 inches of snowfall. This is based on models from this afternoon and could change or remain the same with new models that come out tonight. Winter Storm Watches have already been issued for areas west of Blair and Somerset Counties including the Greater Pittsburgh Area. These watches could be expanded farther east as time goes on. The 1st map below shows how much snowfall could fall. The 2nd map shows how much sleet and or freezing rain could fall. Sleet and Freezing rain is much more likely in Maryland with snow in South Central PA. These maps are not a forecast by any means. They are only predictions. Which will change as time goes on. Updates will be issued as warranted.
Picture and information are from the National Weather Service.