Parvez was arrested on September 16 and placed in administrative detention in a jail in Kupwara for allegedly posing an imminent threat of breach of peace.
With adverse weather forecast for the next 24 hours, the road is unlikely to be opened for traffic on Monday.
Curfew-like restrictions have been imposed and separatist leaders have been detained.
Restrictions continued in parts of Srinagar city for second day on Tuesday following the death of a youth in security forces firing.