The Met Office has issued an early amber storm warning for strong winds forecast to hit the Anglia region on Thursday as Storm Doris sweeps in from the Atlantic.
Winds could gust up to 80 mph with the risk of trees coming down and disruption to travel.
The Met Office says: "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."
The animation below shows the forecast track of Storm Doris on Thursday which the strongest winds where the isobar lines are closest together
The Met Office 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.
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 Amber warning means "be prepared" and is now in place for most of the Anglia region.
The strong wind warning is in force from 6am until 8pm on Thursday 23 February 2017
"A rapidly deepening area of low pressure, named Storm Doris, is expected to move quickly east across the UK during Thursday with strong winds on its southern and western flanks. "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."
The video animation below shows the areas at risk of gale force winds marked in yellow and orange
Storm Doris is expected to move on quickly, with the worst of the weather gone by Thursday evening.
While further Atlantic gusts will bring more rain and wind through the weekend and into next week, they are not expected to reach the heights of Doris.
Storms with the potential to cause substantial impact are named by the Met Office and Met Eireann, moving through the alphabet.
The first was named Abigail in November 2015, after members of the public suggested monikers for the "name our storms" project.
Forecasters are now in their second run through the alphabet alternating between male and female names. After Doris, Britons can expect to hear of Ewan, Fleur and Gabriel.