When Philadelphia issues a snow emergency, drivers along certain routes must move their cars. Here's what to know.

During a snow emergency in Philadelphia, drivers will need to move their vehicles off of the city's snow emergency routes.

The city of Philadelphia will be under a snow emergency declaration starting on Saturday, Jan. 24 at 9 p.m. and lasting through 1 p.m. on Sunday, Jan. 26. Here’s how the city if preparing for this weekend’s storm: Philly crews pre-treating roads The Philadelphia Streets Department has started the process of treating major roads in the city with brine before the storm starts.

Mayor Cherelle Parker told reporters Friday the city will declare a snow emergency beginning at 9 p.m. on Saturday, Jan. 24.

Temple University Hospital is preparing to stay open and fully staffed through the upcoming snowstorm, with emergency crews and facilities teams ready to keep access clear for patients and ambulances.

The city of Philadelphia will mobilize more than 1,000 workers for an all-out fight against what is expected to be one of the most significant snowfalls the city has seen in years this weekend. Mayor Cherelle Parker announced the city will be under a snow emergency beginning 9 p.m. Saturday.

The Blizzard of 1996 dropped the most snow the city has ever seen in a single snowstorm. But 'snowmaggedon' brought 44 inches in one week in 2010.

Winter Weather alerts are in effect for some major Northeastern cities expecting snow Sunday as a system moves in from the Southeast.