Get ready before the first warning
Flood preparation is easier when you can do it on a dry day. Before autumn, set aside an evening to check your address, update your household contacts and find out how you would receive an official warning. Do the same if you move or regularly stay somewhere else. Flooding can happen in any season, so use the autumn check as a reminder rather than a deadline for taking action.
Start with the official long-term flood information for your address. In England, the government service distinguishes sources including rivers and the sea, surface water and, where information is available, groundwater. Record the sources that matter at your address and check what the map actually represents. A map showing the likelihood for an area does not give you a forecast for this weekend or tell you whether water can enter through a particular door.
Save two ways to find updates
Use the official current flood information for the UK nation you are in. In England, check whether the Environment Agency can send warnings for the address. Write down the warning area name when you find one. The title in a message may refer to a river reach or a neighbourhood rather than the town name that appears on your post. Save the forecast page as well, so you can follow an event even if you miss a notification.
Give one person responsibility for checking the updates when disruptive weather is expected. Agree who takes over if they are working or travelling. A household group message can tell everyone which official page to open and when to check again. Keep a printed copy of useful contacts at home so the person who needs them can still find them without your phone or a working connection.
Check the places you depend on
A household can be disrupted while its home stays dry. Think through the route to school, the road used by a carer, the path to a railway station and the way a delivery reaches your building. Note underpasses, low bridges or other points where a closure would split the journey. Save the school, council and transport operator pages you would use to check for changes.
For example, a parent might normally collect a child by crossing a river while the other parent works on the school side. Before heavy rain, ask the school how a change of collection arrangements should be communicated. Confirm who is authorised to collect the child. A planned change of collector is more useful than a supposed diversion that nobody has checked and that may also close.
Give each person a task
Make a one-page plan that says who will contact relatives, where essential medicines are kept and what support anyone in the household needs. Include arrangements for pets and people who may need assistance leaving a building. If you are a tenant or live in a shared building, ask who is responsible for building-level communication and how residents will hear about access changes or repair work.
If you already have flood protection equipment, look up its instructions and check that you can locate the parts. Discuss responsibilities in advance if fitting it requires help. During an incident, follow the instructions of responders and leave promptly if directed. Equipment and belongings can be dealt with later. The official flood guidance advises against entering floodwater on foot, by bicycle or in a vehicle.
Decide what changes when rain is forecast
A forecast for heavy rain is a good time to confirm that your plan is still practical. Check whether a trip can move to another day and tell people if your availability changes. Check the update time on official flood and weather pages and make sure any message you forward includes the named location. A screenshot can be useful offline, but it needs a timestamp and may become out of date.
If a warning names your area, read its current instructions and share the original notice. A neighbour may need help receiving updates, but arrange that by phone or another safe means if routes are affected. In immediate danger, call 999. For updates after a disruption, check that the relevant authority or operator has reopened the route or facility before relying on it again.
Review the plan after an ordinary wet week
Use a recent rainy day as a rehearsal. Ask which page you actually opened, whether it named your street clearly and whether everyone knew who would make the next decision. If a map was difficult to read on your phone, save the corresponding written page. If the school or care contact was out of date, correct it in the paper copy and in the shared version.
Keep a short record of changes to check again next season. A new bus route, a change of job, a new medication or a different access arrangement can matter more than buying additional equipment. At the end of the review, everyone should be able to name one trusted source for the home, one for an important journey and one person to call if the usual plan changes.