I always tell visitors that our Amsterdam flat is safe from floods if the dikes should break because we are on the second floor. Luckily the ministry managing water levels has a slightly more scientific approach on the "Overstroom ik" site.
The site (the name translates as "Will I be flooded?") is in Dutch but take a look. The message on the bottom translates (roughly) as "you have less than a 1% chance of facing this 0.5m flood in your life, but it might happen tomorrow." On the right side, it says I'd lose water, internet, etc., but says stay in the house for a few days, as the roads would be a mess.
Does your government provide such information on an ongoing -- and climate-change-changed -- basis?