Due to rapidly declining weather conditions — with an updated Winter Storm Warning saying the storm could bring an additional three inches of snowfall to parts of the Texas Panhandle that had already seen heavy snow — several offices, businesses, schools and campuses closed early Thursday and announced closings for Friday.

Poor conditions on secondary roads in some portions of the D.C. region and worries about refreezing has prompted another round of school delays and closings for Friday — with many students having missed an entire week of classes.

: As of 10:45 a.m., 50 districts have now closed. Only seven districts stayed with a two-hour delay. EARLIER: Some schools made announcements about Thursday morning delays as early as Wednesday evening due to the weather.