Learn more about First Street Foundation's modeled historic flood events.

First Street only modeled historic flood events that were big enough to receive federal disaster declarations so that we could validate these events with the HWMs (High Water Marks) and claims that come along with that declaration. Additionally, we did not model historic events if we could not reliably trust the river/tidal gauges measuring the water levels where these events occurred. 

We have historic data for 55 inland and coastal events since 2000. The methods are detailed here. You can also read more in First Street Foundation's flood methodology here.

Please note, that First Street's Historic Flood data is only available through Risk Factor Pro. For more information whats included in each of the Risk Factor Pro plans please review this article.

The following is the list of historic flood events that we have data for:

Historic Event Name

Description

Return Period Year

River flood near Toledo, OH

  25 2015

River flood across eastern Iowa

June 2008 fluvial event across eastern Iowa

2733 2008

River flood near Shepherdstown, WV

  5 2018

River flood near Minneapolis, MN

April 2001 fluvial event near Minneapolis, Minnesota

41 2001

River flood near Winona, MN

April 2001 fluvial event near Winona, Minnesota

86 2001

River flood near Wisconsin Dells, WI

June 2008 fluvial event near Wisconsin Dells, Wisconsin

4 2008

River flood near Camanche, IA

April 2001 fluvial event near Camanche, Iowa

107 2001

River flood near Ames, IA

July 2008 fluvial event near Ames, Iowa

57 2008

River flood near Des Moines, IA

June 2008 fluvial event near Des Moines, Iowa

44 2008

River flood near Peoria, IL

April 2013 fluvial event near Peoria, Illinois

88 2013

River flood near Eureka, MO

December 2015 fluvial event near Eureka, Missouri

98 2015

River flood near Newport, AR

May 2011 fluvial event near Newport, Arkansas

37 2011

River flood near Mesquite, NV

January 2005 fluvial event near Mesquite, Nevada

154 2005

River flood near Ruidoso, NM

July 2008 fluvial event near Ruidoso, New Mexico

105 2008

River flood near Fort Morgan, CO

September 2013 fluvial event near Fort Morgan, Colorado

74 2013

River flood near Boulder, CO

September 2013 fluvial event near Boulder, Colorado

895 2013

River flood near Tulsa, OK

July 2007 fluvial event near Tulsa, Oklahoma

656 2007

River flood near Sioux City, SD

June 2014 fluvial event near Sioux City, South Dakota

410 2014

River flood near Yankton, SD

March 2019 fluvial event near Yankton, South Dakota

913 2019

River flood near Bismark, ND

June 2011 fluvial event near Bismark, North Dakota

99 2011

River flood near Rocky Mount, NC

October 2016 fluvial event near Rocky Mount, North Carolina

35 2016

River Flood across eastern Nebraska

March 2019 fluvial event across eastern Nebraska

150 2019

River flood across central Pennsylvania

September 2011 fluvial event across central Pennsylvania

99 2011

River flood near Grand Rapids, MI

  15 2013

River flood near Columbus, IN

  68 2008

River flood near Lansing, MI

  5 2004

River flood near Piketon, OH

  5 2005

River flood near Stanton, KY

  24 2004

River flood near Zanesville, OH

  25 2005

River flood near Harrisburg, PA

September 2004 fluvial event near Harrisburg, Pennsylvania

25 2004

River flood near Pittsburgh, PA

September 2004 fluvial event near Pittsburgh, Pennsylvania

12 2004

River flood near Beaumont, TX

March 2016 fluvial event near Beaumont, Texas

1175 2016

River flood near Dallas, TX

May 2015 fluvial event near Dallas, Texas

43 2015

River flood near Albany, NY

April 2011 fluvial event near Albany, New York

9 2011

River flood near Springfield, MA

August 2011 fluvial event near Springfield, Massachusetts

198 2011

Hurricane Gustav

August 2008 Hurricane impacting the Gulf Coast of Alabama, Florida, Louisiana, and Mississippi

30 2008

Hurricane Isaac

August 2012 Hurricane impacting the Gulf Coast of Florida, Louisiana, and Mississippi

60 2012

Hurricane Ike

September 2008 Hurricane impacting the Gulf Coast of Louisiana and Texas

125 2008

Hurricane Katrina

August 2005 Hurricane impacting the Gulf Coast of Alabama, Florida, Louisiana, and Mississippi

100 2005

Hurricane Charley

August 2004 Hurricane impacting the West Coast of Florida

75 2004

Hurricane Irma

September 2017 Hurricane impacting Florida, Georgia, and South Carolina

75 2017

Hurricane Wilma

October 2005 Hurricane impacting the South Florida

125 2005

River flood near Towner, ND

June 2011 fluvial event near Towner, North Dakota

88 2011

Hurricane Sandy's storm surge

October 2012 hurricane on the East Coast

350 2012

Nor'easter storm surge

February 2003 nor'easter in New York and southern New England

100 2003

Nor'easter storm surge

November 2009 nor'easter on the East Coast

15 2009

Hurricane Isabel's storm surge

September 2003 hurricane impacting the east coast

450 2003

Nor'easter storm surge

March 2010 nor'easter in New York and southern New England

100 2010

Hurricane Matthew's storm surge

September 2016 hurricane on the east coast of Florida

125 2016

Hurricane Irene's storm surge

August 2011 hurricane over the East Coast

75 2011

Hurricane Hermine's storm surge

August 2016 hurricane on the Gulf coast of Florida

75 2016

Hurricane Isidore's storm surge

September 2002 hurricane on the Gulf Coast of Alabama and Mississippi

40 2002

Tropical Storm Allison's storm surge

June 2001 tropical storm on the Gulf Coast of Louisiana and Texas

20 2001

Hurricane Michael's storm surge

October 2018 hurricane on the west coast of Florida

40 2018

Hurricane Jeanne's storm surge

September 2004 hurricane on the east coast of Florida

100 2004

 

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