The ban was lifted in Genesee and Niagara counties.

Niagara County and the City of Niagara Falls lifted their travel bans Sunday morning, as work crews continue to clear obstructions and move snowdrifts.

A travel advisory will remain in place in Niagara County, including in the cities of Lockport, Niagara Falls and North Tonawanda, the Niagara County Sheriff’s Office announced.

There is a travel advisory in Genesee County.

Motorists are urged to use “extreme caution” if choosing to drive due to the continuing challenging conditions.

Authorities urge the public not to travel in areas where a travel ban is in effect. Conditions outside are life-threatening and emergency vehicles have been getting stuck on the road.

“Unless you are emergency personnel responding to the blizzard, do not drive. It’s as simple as that,” Erie County Executive Mark Poloncarz said on Twitter Saturday morning.

A ban bars travel for anyone except emergency responders. Under a travel advisory, no unnecessary travel is advised.

The Thruway remains closed to all traffic from Exit 46 to the Pennsylvania state line. The entire I-190 and I-290 also has been shut down.

These roads also remain closed, according to NITTEC:

• Route 219 from Peters Road in Ashford to Buffalo

• Route 400 from I-90 in West Seneca to Olean Road in Aurora

• Route 5 from I-190 in Buffalo to Big Tree Road in Hamburg

• Route 93 from Route 5 to Tonawanda Creek Road in Newstead.

News staff reporter Barb O’Brien contributed to this report.