The Met Office is predicting winds of up to 65mph inland and up to 75mph on the coast, with rainfall of up to 40mm expected.
Localised flooding could occur and structural damage and damage to trees may be caused by the winds.
The worst of the weather is expected between 2.00am and 5.00am on Thursday morning so motorists travelling before sunrise are being warned to be extra vigilant.
Homeowners are encouraged to secure any garden furniture tonight before the winds arrive.
Any impact on West Sussex schools will be publicised on our website from first thing Thursday morning.
Commuters using the trains are asked to keep an eye on their service’s website and twitter feeds for the latest information.
Any impacts on flights to and from Gatwick Airport will be reported on its website.
The Environment Agency has issued flood alerts for:
- Upper Ouse; and
- Upper River Medway Area
It is likely to issue flood alerts today as a precautionary measure for:
- Worthing; and
Further flood warnings are likely to be issued on Thursday for:
- Upper Ouse;
- Upper Arun;
- Lower Arun;
- Western Rother;
- Loxwood Stream;
- Bersted; and
The Environment Agency will be updating its information and flood advice throughout the day and night on the website.
Residents can sign up for weather warnings:
- River and coastal flooding - Visit the Environment Agency website, or phone Floodline on 0845 988 1188; and
- Surface water – Subscribe to our ‘AlertMe’ emails.
For more information visit our Flooding pages, or follow @WSHighways on Twitter.