What to do in a flood
We issue three types of warnings to help you prepare for flooding and take action:
Flood Alert – Flooding is possible, be prepared.

Alerts cover large areas where flooding is possible from rivers or the sea.
- check our live flood map or call Floodline on 0345 988 1188
- prepare your home business or farm for a flood
- monitor local river levels and the flood forecast
- farmers should consider moving livestock and equipment away from areas likely to flood
- avoid walking, cycling or driving through flood water
Flood Warning – Flooding is expected, immediate action required.

Warnings cover smaller, community-level areas where we expect to see flooding of properties from rivers or the sea.
- move family, pets and valuables to a safe place
- turn off gas, electricity and water supplies if it is safe to do so
- put flood protection equipment in place
Severe Flood Warning – Danger to life.

Severe warnings are issued when flooding from rivers or the sea may already be happening and there is danger to life.
- stay in a safe place with a means of escape
- be ready to leave your home
- cooperate with the emergency services
- call 999 if you are in immediate danger
We cannot issue a flood warning or alert if:
- the area is at very low risk of flooding
- you’re at risk of flooding due to small watercourses, because they flood extremely quickly and we can’t give enough time to take preventative action
- you’re at risk of flooding due to surface water, groundwater or sewage flooding
- our monitoring network or forecasts do not cover that location
Find out how we forecast floods and issue warnings
If you are evacuated
Listen to advice from the emergency services and evacuate when told to do so.
You will be taken to an evacuation centre run by your local council. Free food and bedding is provided but you will need spare clothing, essential medication and baby care items if you have an infant.
Most evacuation centres will let you bring your pets. You should take pet food and remember to put cats and small animals in a pet carrier or secure box.
Report a flood
Blocked drains and gullies
Report flooding caused by blocked drains, gullies or water running off fields to your local authority.
Blocked rivers and landslides
Report flooding caused by blocked rivers, landslides or flooding from rivers and the sea to our 24 hours incident line on 03000 65 3000.
Problems with gas, electricity or sewerage
If you are concerned about floodwater affecting your gas, electricity, water or sewerage services, please call your supplier.
For sewer flooding, or if your toilet or sink is backing up during floods please call your local water company.
Sandbags
Your local authority may have some sandbags ready to deploy at times of flooding, but their priority is to protect the public at large.
You should check with them in advance to find out what their policy is, and if there is a charge for the service.
If your local authority doesn’t supply sandbags, you can buy your own supply from DIY stores and builder’s merchants.
Your local authority can also advise what to do with sandbags after a flood. They can be contaminated by flood water, sewage, oil or fuel and may need to be treated as contaminated waste.
Find local information
- Call Floodline on 0345 988 1188
- Check local Facebook groups
- Tune into your local radio station for updates
- Check the latest weather from the Met Office
- Get traffic updates from the Traffic Wales website
- Use our live warning map to see if you’re at risk from river or coastal flooding
What to do after a flood
Make sure it’s safe to return to your property:
- take care as there may be hidden dangers in floodwater, such as sharp objects, raised manhole covers and pollution
- flood water might have caused structural damage to your property
If your electricity supply has not been switched off at the mains, get a qualified person to do this. DO NOT touch sources of electricity when standing in flood water.
Making an insurance claim
In almost all cases, the insurance company will send a loss adjuster to look at your property. They will confirm what repairs and replacements are needed and which elements are covered by your policy.
Ask the insurance company:
- How long it will be before the loss adjuster visits
- If you are to clean your property or if they will get a company to do it for you
- If they will help pay for repairs that will reduce potential flood damage and therefore reduce costs if it happens again
- If they will provide you with temporary accommodation – this can be a nearby B&B, static caravan or rented house. You don’t have to accept the first place you are offered.
Always make your own record of flood damage:
- Use a permanent in pen to mark on the wall the height the flood water got to. Do this in every room affected by flooding.
- Photograph or video your damaged property and list the damage to your property and belongings.
- If your insurance company covers you for loss of perishable good, make a list of all the foods you throw away. Include any food touched by flood water and anything in your fridge or freezer ruined by loss of power.
Top tips:
- confirm the insurance company will pay for any services or equipment you need
- make a note of all telephone calls. Record the date, name and what was agreed
- keep copies of letters, emails and faxes you send and receive
- keep receipts
- don’t throw anything away until told (except ruined food)
If you rent your property, contact your landlord and your contents insurance company as soon as possible.
If you do not have insurance, your local council should be able to provide information on hardship grants or charities that may be able to help you.
If you need more help and support contact:
- Flood Re – they make flood cover more widely available and affordable as part of your home insurance
- British Insurance Broker’s Association
- Association of British Insurers
Financial support
- You may be eligible for an Emergency Assistance Payment grant from the Welsh Government.
- Turn2us is a national charity providing practical help to people who are struggling financially.
- Farmers and farm workers may be eligible to apply for an emergency fund from the Royal Agricultural Benevolent Institution (RABI). To find out more, call their freephone helpline 0808 281 9490.
Your Local Authority can advise you on:
- Community Flood Recovery Grants
- Emergency/alternative accommodation
- Council Tax exemptions
For more information from the Welsh government, check their website on flooding.


