Snow on high ground and a four-vehicle accident are causing delays this Monday morning rush hour.
One lane is blocked and there are long tailbacks on the M62 westbound between Huddersfield and Rishworth Moor due to an accident near The Little House on the Prairie farm.
Four vehicles were involved in the collision, causing the outside lane to be blocked.
The Highways Agency is already reporting slow traffic over the Pennines due to falling snow.
Elsewhere, there is heavier than normal traffic and hold ups on the M1 Northbound between J38 A637 (Darton / Huddersfield) and J42 M62 (Lofthouse).
And, as usual, there is slow traffic at Cooper Bridge roundabout, particularly heading towards the M62 Brighouse junction.