Iowa Flood Information System predicts economic damages of flooding


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The Mississippi River in Dubuque is one of many in the state that is threatening to flood this spring. (Lesley G/flickr)

Jenna Ladd | May 10, 2018

Flooding has cost Iowa communities more than $18 billion in the last thirty years, and as the Mississippi and Cedar Rivers continue to swell this spring, Iowans may wonder how much they can expect to pay out on flood disasters in the future.

In recent years, scholars at the Iowa Flood Center have been working to predict just that. HAZUS, developed by the the Federal Emergency Management Agency, provides predictions of the economic impact various magnitudes and types of natural disasters might have across the United States. During 2017, Research Engineer and Assistant Professor Ibrahim Demir and graduate research assistant Enes Yildirim, combined HAZUS’ information on demographics, buildings and structural content with data from the Iowa Flood Information System (IFIS).

As a result, IFIS now offers flood loss and economic damage estimations for twelve communities in the state. These include Cedar Rapids, Cedar Falls,  Des Moines, Fort Dodge, Iowa City, Independence, Kalona, Monticello, Ottumwa, Rock Rapids, Rock Valley, and Waterloo. HAZUS’ model makes it possible for users to not only view the overall economic damages to a community but also how much in damages individual buildings can be expected to accrue.

Iowa Flood Center researchers are working to expand this predictive model to other parts of the state. For now, users can use the following guide to learn more about the financial consequences of flooding in any of the aforementioned communities.

First, users must visit Iowa Flood Information System website, then:

  1. Hover their cursor over the “Flood Maps” tab and find their community under the “Flood Map Scenarios for Communities” button.
  2. After clicking on the “Damage Estimate” button, users can toggle the “Flood Map Controller” to model different scenarios.

Iowa Flood Center featured in American Meteorological Association flagship publication


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Iowa Flood Center’s Iowa Flood Information System was featured on the front page of the Bulletin of the American Meteorological Society this March. (Iowa Flood Center)
Jenna Ladd | May 5, 2017

The Iowa Flood Center was featured in the March 2017 edition of the Bulletin of the American Meteorological Society, also known as BAMS.

BAMS is the flagship publication of the American Meteorological Society. The bulletin, which is released monthly, features scientific articles related to weather, water, and climate as well as news stories and editorials.

Witold Krajewski, the Iowa Flood Center’s director, is lead author on the article featured in BAMS. Titled “Real-Time Flood Forecasting and Information System for the State of Iowa,” the academic article provides a detailed understanding of the Iowa Flood Center’s (IFC) flood forecasting and information dissemination system.

IFC established the system following the record floods of 2008. Using scientific models and mathematical equations, the Iowa Flood Information System (IFIS) is able to provide rainfall and streamflow forecasts every fifteen minutes. Iowans from over 1,000 communities can access these real-time observations using the interactive IFIS web platform.

Prior to the development of this system, floods frequently occurred without warning in Iowa, as they did in 2008. The report reads,

“Devastating floods that inundated Cedar Rapids came as a surprise, leaving residents and businesses little time to evacuate; residents of Iowa City and the University of Iowa campus watched helplessly as floods compromised more and more buildings after the Coralville Dam lost its controlled-release functionality. Overall, the 2008 flood upended countless lives and livelihoods and caused between $8 billion and $10 billion in damages—at the time, the fifth-largest disaster in the history of the United States.”

Nine years later, the IFC is now able to consistently measures rainfall every five minutes across the state, and Iowans can have peace of mind heading into the rainy summer months.

Iowa Flood Center looks for donations to add flood sensors


The Iowa River. Photo by Shan’s Photostream, Flickr.

The Iowa Flood Center is asking for donations in order to add more stream-stage sensors around Iowa.

These sensors collect real time data about stream height, which is then displayed on the Iowa Flood Information System. This data helps with the monitoring of flood potential in different watersheds.

The Iowa Flood Center has already placed 129 of these sensors around the state. With the help of the donations, they hope to add 100 more.

Read more about the sensors and how to donate here.

Iowa Flood Center radar remains safe from landfill fire


Photo by Wisconsin Department of Natural Resources, Flickr.

Researchers at the Iowa Flood Center are crossing their fingers that the Iowa City Landfill fire wont affect one of their sensors.

One of their mobile weather radar units is located at the landfill. So far it has avoided damage, but the Iowa Flood Center engineers will continue to monitor the situation closely. The radar provides rainfall intensity data for the Clear Creek watershed.

The Iowa Flood Center plans to clean the radar once the fire is extinguished.

Read more about the radar from the Iowa Flood Center’s website here.

Read a question and answer interview about the Iowa City landfill here. The interview explains the environmental concerns involved, and why it might be best to let the fire extinguish on its own.