Faced with imminent risk of flooding over in Britishland, the Met Office has provided a helpful emergency list for those Brits at risk of same:
“Think about putting together an emergency flood kit with essential items that will help you cope in a flood, including: Insurance documents and list of contact numbers; torch and spare batteries; first-aid kit and any prescription medicines; warm waterproof clothes and blankets; bottled water and snacks; battery or wind-up radio and if it applies to you: supplies for looking after your baby or pet. Make sure that everyone knows where to find this kit and what to do if flooding happens.”
Of course, what isn’t mentioned is whether the flood risk involves home evacuation or simply being isolated at home (surrounded, say, by floodwaters).
I have a couple of grab ‘n go chests ready if I had to leave home, and they contain all the above along with more serious survival stuff, to be supplemented only with things I keep in the house, e.g. Rx meds, rain gear and of course my laptop computer (which contains all the documentation I need to run my life). And as long as I have sufficient gas in the car, the power inverter I keep inside it will provide all the power I’d need. Of take-along guns we will not speak, of course, but most Brits don’t have any of those, so their supplies are pretty much there for the taking by anyone (e.g. a criminal or police officer [some overlap] ) who can simply commandeer whatever they need.
As for staying in place at home, I think we could survive for about a month, maybe even two before being seriously inconvenienced.
In other words, I’m not too worried about the problem — unless the disaster strikes (as it usually does in Texas) during a severe winter storm, in which case things might be a little more tricky, but not insurmountable. As our apartment is on the ground floor and overlooks a large lawn, I could always park the car next to the patio railing and use the inverter for emergency power inside the apartment if necessary. (The complex has all sorts of rules about outdoor cooking on the patio etc., but in a SHTF situation I’d ignore pretty much everything that stood in my way anyway.)
Feel free to run over all the things you’d need to get through a catastrophe of the above nature. It’s a good mental exercise even if you believe you’re adequately prepared, and who knows, you might find that you have a few things to attend to, e.g. getting in some more batteries or non-perishable foods.
Disaster prep: if you don’t do it, you deserve everything that hits you.