There's currently three separate incidents causing hold-ups on the M4 in Berkshire and Wiltshire - westbound between J4B M25 J15 and J7 A4 Slough West, between J6 A355 Slough / Windsor and J7 A4 Slough West, and eastbound between J17 A350 / A429 / B4122 Chippenham and J16 A3102 / B4005 Swindon West.
Meanwhile traffic is very slow on the M25 clockwise from J30 A13 Lakeside / Tilbury to A282 QE2 Bridge / Dartford river crossing.
More top news
Wednesday morning's weather for the west of the region
Wednesday morning's weather for the east of the region
Tuesday night's weather for the west of the region