The Pennsylvania Department of Transportation has announced travel restrictions on some highways ahead of the winter storm anticipated to deliver ice, snow and high winds Thursday and Friday.

The restrictions include:

Tier 1 Vehicle Restriction – No Empty CMVs will be ACTIVE as of Thursday at 1 a.m. for the following route(s) – I-70 from the MD Line to PA Turnpike (I-76), I-79 from PA Turnpike (I-76) to I-80 and I-80 from I-79 to Exit 173 (Lamar) 

Tier 1 Vehicle Restriction – No Empty CMVs will be ACTIVE as of Thursday at 6 a.m. for the following route(s) – I-81 from the MD Line to I-80, I-83 from MD Line to I-81 and I-283.

Tier 1 Vehicle Restriction – No Empty CMVs will be ACTIVE as of Thursday at noon for the following route(s) – I-81 from I-380 to NY Line, I-84 and I-380.

Tier 2 Vehicle Restriction – No Empty or Loaded Double CMVs will be ACTIVE as of Thursday at 1 a.m. for the following route(s) – I-70 from I-79 to PA Turnpike (I-76)

Tier 3 Vehicle Restriction – No CMVs except those with CHAINS ON BOARD will be ACTIVE as of Thursday at 1 a.m. for the following route(s) – I-99 Entire Length.

Tier 3 Vehicle Restriction – No CMVs except those with CHAINS ON BOARD will be ACTIVE as of Thursday at 1 a.m. for the following route(s) – PA Turnpike (I-70/76) from the New Stanton Exit 75 to the Breezewood Exit 161

Tier 1 Vehicle Restriction – No Empty CMVs will be ACTIVE as of Thursday at noon for the following route(s) – PA Turnpike Northeast Extension (I-476) from Lehigh Valley Exit 56 to Clarks Summit Exit 131