Snow, which started falling early this morning, is predicted to continue over night and into tomorrow. Snow guns were fired up around 9 a.m. and more have been turned on throughout the day as humidity and temperatures steadily dropped. Wisp has 11 trails open, but a mountain rep said more could be opened if snow continues to fall at its current rate. Weather reports have the McHenry, Maryland resort seeing clear skies on Thursday with more snow possible Friday and Saturday.