More than 17 million Brits will hit the road today – with travel chaos spreading across the country.
auto association warning Huge delay at pinch points such as M25 London track and the M6 in the north of England.
They expect increased traffic across the UK between 10am and 6pm on Friday.
The AA said there will be peak traffic on Saturday between 10am and 4pm.
The overpass connecting the M25 with the M3, M4, M1, M11, M20 and A1(M) is expect to experience delays over the course of two days.
RAC has published its own serious traffic warning M25 on Friday and Saturday.
Congestion on the clockwise stretch between junction 7 of the M23 and junction 16 of the M40 is expected to peak at 12.30pm on Friday – with possible delays of around 50 minutes.
The M4/M5 junction in Bristol and the M5 junction in Exeter are likely to experience significant congestion between today and tomorrow.
Delays are also expected in the Birmingham area of the M6 and the M11/A14 junction north of Cambridge.
In the north, there will be delays on the M6 junctions in Cumbria and the A69, M62/M60 junctions around Manchester.
There will be long queues on the A64 between Leeds and York and the M8 around Edinburgh.
Drivers in Wales and southern England are also battling heavy rain, with the Met Office warning it will spread northward into southern Scotland and Northern Ireland on Friday afternoon.
Tragedy struck on Thursday when a driver was killed in a multi-vehicle crash on the M20, Kent Online reports.
Parts of the motorway between Aylesford and West Marin have been closed since 6pm last night after the truck, Peugeot and Audi collided.
Vehicles were diverted to exit and entry slip roads, causing three miles of congestion and delays of at least 45 minutes.
National road workers also took strike action on Friday – further complicating travel as they repair and clear the road network to prevent delays.
Nearly 98% of England’s motorways and major A-roads will be fully open by January 2 as roadworks are completed and upgraded, the group said.
AA road policy chief Jack Cousens urges Brits spend 10 minutes checking their car Before departure – Increased traffic due to breakdown.
He stressed that it was crucial for passengers to bring warm clothing, water and snacks in case drivers had problems.