Storm Eunice looks set to cause chaos to Brit family's half-term plans with flights grounded.
The Met Office has issued a red weather warning - the highest alert, meaning a high impact is very likely - for parts of the UK on Friday, and some airports are warning travellers to expect disruption.
Eastern Airways has already cancelled its London-Gatwick service and Exeter Airport has axed three domestic flights.
Gatwick and Stansted are advising customers to check the status of their flights with airlines, as well as allowing plenty of time to travel.
Gatwick Airport tweeted: "Weather Warning. Be advised that due to storm Eunice, there is the possibility for disruption to flights, and the shuttle service to North terminal tomorrow, between approximately 10am and 4pm.
"Please arrive earlier if you are flying from Gatwick."
Heathrow urged those travelling to regularly check the status of their flights as the bad weather could cause "last-minute delays".
A spokesperson said: "Storm Eunice is forecast to cause poor weather conditions across the UK tomorrow.
"We are working in close collaboration with our airline and air traffic control partners to get passengers safely away on their journeys as quickly as possible.
"High winds and poor weather can cause last-minute delays, but we will do everything in our power to minimise any disruption that results. We encourage passengers to check their flight status with their airline for the latest information."
Manchester Airport said on Twitter : "Due to potential disruption caused by Storm Eunice tomorrow, passengers are advised to check with their airline for the most up-to-date flight information. We also advise allowing plenty of time for your journey to the airport, as road and rail networks may be affected."
And Belfast International Airport said in a statement: "As Storm Eunice approaches please take care when travelling to and from the airport. Check with your airline for latest travel updates."
If passengers are delayed, the Civil Aviation Authority (CAA) has issued advice on what travellers should do.
"If you are delayed, your airline has a duty of care for you, potentially including the provision of food and drinks, as well as accommodation if you are delayed overnight," they said in a statement.
The rare red weather warning has been issued by the Met Office due to the combination of high tides, strong winds and storm surge.
The warning covers the coastline of Devon, Cornwall and Somerset as well as the south coast of Wales and will be in effect from 7am until 12pm on Friday.
Amber warnings, the second highest alert level, for wind are in place across the whole of England from 5am to 9pm on Friday, while yellow weather warnings, the next level down, for wind and snow are in force for a large part of Scotland - where blizzards are predicted - and the whole of Northern Ireland.
Prime Minister Boris Johnson has said the Army is on standby to help those affected by Storm Eunice.
During a visit to RAF Waddington in Lincolnshire, he said: “So for those who have already been affected by Storm Dudley, we are offering all the support that we can.
“My sympathies to those who are still without power – we are working with the power companies, the local authorities, to get their juice restored as fast as possible.
“But of course, the Army is on standby.”
A number of attractions, including the London Eye, Legoland and Warwick Castle, have announced they will be closed on Friday in response to the forecast.
