Montgomery County Public Schools will open two hours late on Thursday, Jan. 29, due to emergency weather conditions. Bus service will be provided on a two-hour-delayed schedule. Morning prekindergarten, morning half-day Head Start, other half-day programs and field trips are canceled. Other activities and programs that begin at 10:30 a.m. or earlier are canceled. Administrative offices will be open on time. Day care programs in school buildings will remain open as scheduled.