With covid, we were short of some things for months. (Bog roll, dried fruits, eggs, pasta) Other things were fine. I had to rely on my stash of dried fruit and pasta for two or three months. Plus all dried goods as a church member was shopping for us and only ordered milk and fresh food. (DD needs a lot of veg/fruit due to disability)
We couldn't predict beforehand what was going to be short in the shops. We won't necessarily be right next time despite educated guesses. (There will be a next time)
Cyber attacks are likely, we've had several. (Co-op M and S, blood service, NHS, Jaguar )
We've had close calls with the National Grid. A while back a big chunk went out in the East of England due to several things going wrong at the same time. Big chunks of it go out during storms.
Weather extremes are likely.
Food issues are likely, (fertiliser not getting through the Straits of Hormuz during planting season) climate instability, wet winter.
Flu pandemics are always a possibility.
Food prices going up again and COL ongoing.
Illnesses/disability long or short term
Having back up plans are not paranoid.
Torches, power banks for phones, ability to cook (BBQ, camping stove) easy to prep food, spare cash.
Covid was big, although some people did ok.
Arwen was big for some areas
Heatwaves were big for other areas. (Wild fires burnt down several houses and threatened others)
Flooding is big if it's your area flooded.
It doesn't have to be countrywide nor effecting everyone to be "big"