Map url

The map provided is dynmaic, i.e. the user may zoom and pan within a small range.

The dynamic FEMA Flood map base url is https://floodmap.nationalflooddata.com/

Endpoint

The dynmaic FEMA Flood map uses the default endpoint:

endpoint description
dynamic.html Fema Flood Map

Parameters (all required)

value description
key authentication key
lat latitude
lng longitude
zoom integer parameter between 6 (low zoom) and 17 (high zoom). Default zoom is 15.

Note: the low zoom is intended only to allow a user to move around the map quickly. Low zoom can load slowly and polygons are simplified. Only high zooms between 14 and 17 should be used to illustrate zones.

Example map query:

https://floodmap.nationalflooddata.com/dynamic.html?key=yourkey&zoom=15&lng=-117.199549&lat=32.769411