4/10/2024 0 Comments Fema flood zone ae meaningWhen you look at the 100-year flood zone that way, you have a 1 in 4 chance of experiencing flood damage during your 30-year mortgage. The 500-year flood zone gives you a 6% chance of being flooded.The 100-year flood zone gives you a 26% chance of being flooded.The 50-year flood zone gives you a 45% chance of being flooded.The 25-year flood zone gives you a 71% chance of being flooded.If we use those same statistics, over the course of a 30-year mortgage, this is the flood risk you could be exposed to… FEMA frequently reports these other floodplain frequencies in the Flood Insurance Study (FIS), which is a report that accompanies the maps, but they aren’t on the maps because it’s too much information to clearly draw on the map. You could be in the 50-year floodplain, or the 25-year floodplain, or the 10-year floodplain as you move closer to the flooding source. The closer you get to the flooding source, the more the ‘years’ go down. river, stream, pond, etc.) you have more risk. But if you are closer to the flooding source (e.g. If your structure is right on top of the 100-year flood line on the map, you carry a 1% annual risk of flooding. We recommend you get a flood insurance policy to cover you and your family. So, even if you are outside of the 100-year flood zone, you are likely close to the 100-year flood zone, and therefore you are carrying almost the same risk but the insurance cost is very low. It’s a bare minimum standard and it doesn’t mean you won’t flood. Being in or out of the 100-year flood zone is just the requirement for mandatory flood insurance purchase. A 1% annual risk of being flooded was the line FEMA drew. If you are close to the 100-year flood, your risk may not have been significantly reduced.Ī line had to be drawn somewhere to make the FEMA flood maps. So we are really all in a flood zone of some sort and it's just a matter of which one. With enough rain, anything will flood, and we still can’t predict the weather very well. But maybe you are now in the 0.99% annual chance flood zone or the 0.75% annual chance flood zone. the 1% flood) that you are safe from flooding. You might look at a FEMA flood map and think that because you are on the outside of the 100-year flood zone line (e.g. You could roll snake eyes twice in a row or never see it in 100 rolls. You could see many "100-year" floods in the same town in the same year because it's just a statistical average based on past precipitation records and we never know what mother nature will do. And that's a pretty reasonable thing to say when we use the "100-year-flood" term all the time rather than putting the meaning behind it. People say all the time that their property hasn't flooded in 100 years so there's no way it's in a 100-year flood zone. Try saying "zero point two percent annual chance flood zone" two dozen times a day and you can see why we use the short version. Since 1% is also "1 out of 100", the term "100-year flood" was adopted because that's easier to talk about than rattling off a bunch of statistics.įEMA sometimes shows a 500-year flood on their maps and that is technically the 0.2% annual chance flood. It means there is a 1% chance you will see a flood like the one on the FEMA flood map each and every year. But it doesn't mean what you might think. I use the term “100-year flood zone daily for elevation certificates, LOMA’s, and explaining flood maps.
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