I sat here reading this thinking "that is really cool," followed immediately by "hang on a minute I'm only ~750km away." I can't work out if I'm woefully ignorant of the procedures in the UK or if I live somewhere that has no general plans.

Half an hour in to the rabbit hole my answer appears to be: perhaps learn how to use a shovel. There isn't a whole lot of useful info on the government website¹ for longer term problems², not even a calming procedure to deal with the pain from the typo emergency in the first URL.

¹ https://www.gov.uk/government/emergency-preparation-reponse-...

² https://www.gov.uk/government/publications/national-risk-reg...