Storm Doris has well and truly arrived and with her, she’s brought a bout of commuter chaos.

The Met Office has issued an amber warning for very strong winds across south west Hertfordshire, and has advised drivers to take care on the roads and expect delays.

Valid from 6am this morning until 8pm this evening, the warning reads: “Some very strong winds are expected on Thursday in association with storm Doris, with gusts of 60 to 70 mph likely, and 70-80 mph on coasts and hills.

“Whilst the strongest winds look to be only short-lived, damage to structures, interruptions to power supplies and widespread disruption to travel networks are likely, with a danger of injury from flying debris. Trees are also likely to be damaged or blown over.

“Heavy rain is also likely through Thursday, as well as some snow over high ground."

Richard Leonard, head of road safety at Highways England, said: "We're expecting Storm Doris to have a significant impact on the roads throughout the day so are urging drivers to consider changing their plans if necessary, and to slow down in stormy weather."

And Southern rail is advising all passengers to check their journeys before setting off this morning, as gale force winds have prompted Network Rail to impose speed restrictions.

On Southern coastal routes from 8am until 5pm, and on the rest of the Southern network from 12pm until 5pm, a 50mph speed restriction will be in place. As a result, there will be changes to some Southern and Gatwick Express services, meaning delays and cancellations on all routes south of East Croydon.

Heathrow Airport has advised customers to check their flights before travelling as it predicts dozens will be cancelled, and many will be delayed. 

A Heathrow spokesman said: "Strong winds and poor weather across the UK have resulted in approximately a 10 per cent reduction to Heathrow's flight schedule.

"With Heathrow operating at more than 99% capacity, there are no gaps in the schedule that can be used for delayed flights and as a result, some passengers may experience disruption to their journeys today."