Attention IFIS Users:
The Iowa Flood Center (IFC) has experienced communication difficulties with several sensors in our networks. A significant number of sites concurrently went offline or become intermittent in January 2024. This is a suspected Verizon service-related issue. We are in contact with Verizon to determine the cause and resolve the problem.

Although the affected IFC stream gauges are not currently transmitting data to the IFC database, they otherwise continue to operate normally, taking measurements and storing data until communication is restored. Dependent on the offline duration, some or all the unreported data will be eventually transmitted to the IFC database.

We appreciate your patience as we work to resolve the issues. In many instances, the affected sites often resume communication without IFC intervention. Site visits and fieldwork will be performed as needed, ASAP.
This is a beta version of the Iowa Flood Information System (IFIS) which is always in active development cycle with many experimental and advanced functionality. The IFIS, its functions and all information are provided on an "as is" and "as available" basis.

Neither the University of Iowa nor Iowa Flood Center (IFC) gives any warranties, whether expressed or implied, as to the suitability or usability of the IFIS, its functions or any of its content. The University of Iowa and IFC will not be liable for any loss, whether such loss is direct, indirect, special or consequential, suffered by any party as a result of their use of the IFIS, its functions, or any of its content. By using IFIS, you are accepting these terms.

IFIS is developed using latest web technologies. Please use latest version of a modern browser (e.g. Google Chrome) and high screen resolution for better user experience.

Should you encounter any bugs, glitches, lack of functionality and data, or other problems on the system, please contact us.

Your help in this regard is greatly appreciated.

Maps represent estimated extents of flood waters originating from the identified flood source(s) and are based upon stream geometry and infrastructure present in the year indicated. Maps are provisional and not intended for regulatory use.

Flood boundaries and depths are provided for informational purposes and should not be used for regulation, enforcement, or insurance rating purposes. Any floodplain data to be used for regulatory purposes should be obtained directly from FEMA.

In some areas, flood data come from a third party and include fewer flood probabilities than available elsewhere. In these locations, only the 10-, 2-, 1-, and 0.2-percent annual chance flood boundaries and depths are shown.