THE Met Office has increased its warning for very strong winds tomorrow as Storm Doris sweeps across the UK, with some gusts set to reach 80mph. 

An amber warning has been issued for Essex from 6am to 8pm tomorrow and forecasters have warned the strong wind could cause damaged to trees and power lines, and there may be a "danger of injury from flying debris."

Heavy rain could also fall across Essex as the storm hits.

A statement on the Met Office website says: "Some very strong winds are expected on Thursday in association with storm Doris with gusts of 60-70 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 as the system clears eastwards.

"These may prove additional hazards.

"The warning has been updated to extend the at-risk area southwards."

The Met Office chief forecaster said: "There is still some uncertainty about the track of storm Doris, but increasing confidence that there will be widespread disruption across parts of England and Wales."