(WTAJ) — PennDOT has announced restrictions on Pennsylvania highways ahead of winter weather coming through Central Pa.

A winter weather advisory also goes into effect Tuesday morning and will expire Tuesday afternoon.

Restrictions are set to go into effect as early as 3 a.m. Tuesday, March 3, with more happening at 6 a.m.

Tier 1 beginning 3 a.m. Tuesday, March 3:

I-80 from I-79 to Exit 173.

Tier 1 beginning 6 a.m. Tuesday, March 3:

I-80 from Exit 173 to the New Jersey border.

I-81 from I-78 to the New York border.

I-180 from I-80 to U.S. 220.

U.S. 322 from I-99 to I-81.

Under Tier 1 restrictions, the following vehicles are not permitted on affected roadways:

Tractors without trailers.

Tractors towing unloaded or lightly loaded enclosed trailers, open trailers or tank trailers.

Tractors towing unloaded or lightly loaded tandem trailers.

Enclosed unloaded or lightly loaded cargo delivery trucks/box trucks that meet the definition of a CMV.

Passenger vehicles (cars, SUV’s, pickup trucks, etc.) towing trailers.

Recreational vehicles/motorhomes.

School buses, commercial buses and motor coaches without available chains or another approved Alternate Traction Device on board.

Speed limits on the listed roadways will be restricted to 45 miles per hour. Commercial vehicles not affected by the restrictions will have to stay in the right lane of travel. Additional restrictions could be added, pending changing conditions.

While drivers are urged to avoid traveling during winter storms, PennDOT provided the following advice if you must travel:

Slow down gradually and drive at a speed that suits conditions.

Turn on your headlights. If caught in a snow squall, turn on your hazard lights.

Stay in your lane and increase your following distance.

Stay alert, keep looking as far ahead as possible and be patient.

Do not drive distracted; your full attention is required.

Use your defroster and wipers.

Keep windows and mirrors free of snow and ice.

During whiteouts, come to a complete stop only when you can safely pull off the roadway.

Do not stop in the flow of traffic since this could cause a chain-reaction collision.

Do not pass a vehicle moving slowly or speed up to get away from a vehicle that is following too closely.

Always buckle up and never drive impaired.

Have an emergency kit handy. Here are some suggestions of what you could include in your emergency kit

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This story will be updated with changes and when restrictions begin being lifted.

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