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Welcome to the official site for FEMA's Great Lakes Coastal Flood Study, the comprehensive storm and wind study of the Great Lakes basin for the purpose of updating the coastal flood hazard information and Flood Insurance Rate Maps (FIRM) for Great Lakes coastal communities. Below you’ll find a list of the most recent meetings with their agendas, links to preliminary maps, and presentations. To the left you’ll find additional Great Lakes Coastal Flood Study content.

FEMA created this self-guided tutorial on coastal flood mapping that provides important information to coastal communities and their residents. FEMA’s “Coastal Hazards and Coastal Mapping: A Visual Guide” is a glossary of coastal mapping terms and a companion to the tutorial.

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Important Resources

Posted in Important Updates.






Lake Michigan Community Consultation Officers Meeting and Open House for Lake County, Indiana and Van Buren County, Michigan

Lake County, Indiana Open House Presentation [.pdf] – CCO Meeting Presentation [.pdf]
Press Release [.pdf]
Wednesday, December 11, 2019
CCO Meeting 2-4 pm | Open House 5-7 pm
Hammond Port Authority – Clipper Room
701 Casino Center Drive
Hammond, Indiana 46320

Van Buren County, Michigan Open House Presentation [.pdf] – CCO Meeting Presentation [.pdf]
Press Release [.pdf]
Thursday, December 12, 2019
CCO Meeting 2-4 pm | Open House 5-7 pm
South Haven City Hall – Council Chambers
539 Phoenix Street
South Haven, Michigan 49090

Lake Michigan Community Consultation Officers Meeting and Open House for Muskegon, Ottawa and Allegan Counties, Michigan

Muskegon County, Michigan Open House Presentation [.pdf] – CCO Meeting Presentation [.pdf]
Press Release [.pdf]
Tuesday, December 3, 2019
CCO Meeting 2-4 pm | Open House 5-7 pm
Muskegon Community College – The University Room
221 Quarterline Road
Muskegon, Michigan 49442

Ottawa County, Michigan Open House Presentation [.pdf] – CCO Meeting Presentation [.pdf]
Press Release [.pdf]
Wednesday, December 4, 2019
CCO Meeting 2-4 pm | Open House 5-7 pm
Ottawa County Emergency Management – Training Room
12220 Fillmore Street
West Olive, Michigan 49440

Allegan County, Michigan Open House Presentation [.pdf] – CCO Meeting Presentation [.pdf]
Press Release [.pdf]
Thursday, December 5, 2019
CCO Meeting 2-4 pm | Open House 5-7 pm
Allegan District Library – Carnegie Room
331 Hubbard Street
Allegan, Michigan 49010

Lake Huron Community Consultation Officers Meeting and Open House for St. Clair County and Sanilac County, Michigan

St. Clair County, Michigan CCO Meeting Presentation [.pdf]
Press Release [.pdf]
Wednesday, November 13, 2019
CCO Meeting 2-4 pm | Open House 5-7 pm
St. Clair County Administrative Office – Dodge Auditorium
200 Grand River Ave.
Port Huron, Mich. 48060

Sanilac County, Michigan CCO Meeting Presentation [.pdf]
Press Release [.pdf]
Thursday, November 14, 2019
CCO Meeting 2-4 pm | Open House 5-7 pm
Lexington Village Hall – Council Chambers
7227 Huron Ave.
Lexington, Mich. 48450

Lake Michigan Community Consultation Officers Meeting and Open House for Cook County, Illinois

Cook County, Illinois CCO Meeting Presentation [.pdf]
Press Release [.pdf]
Thursday, September 26, 2019
CCO Meeting 2-4 pm | Open House 5-7 pm
Winnetka Village Hall | Council Chambers
510 Green Bay Road
Winnetka, Illinois 60093

Lake Michigan Community Consultation Officers Meeting and Open House for Mason County and Oceana County, Michigan

Mason County, Michigan CCO Meeting Presentation [.pdf]
Press Release [.pdf]
Wednesday, September 18, 2019
CCO Meeting 2-4 pm | Open House 5-7 pm
Ludington City Hall
400 South Harrison Street
Ludington, Michigan 49431

Oceana County, Michigan CCO Meeting Presentation [.pdf]
Press Release [.pdf]
Thursday, September 19, 2019
CCO Meeting 2-4 pm | Open House 5-7 pm
Oceana County Services Building
844 South Griswold Street
Hart, Michigan 49420

Lake Michigan Community Consultation Officers Meeting and Open House in Indiana

Porter County, Indiana CCO Meeting Presentation [.pdf]
Press Release [.pdf]
Thursday, August 29, 2019
CCO meeting 2-4 pm | Open House 5-7 pm
Indiana Dunes National Lakeshore | Training Room
1100 N. Mineral Springs Road
Porter, Indiana 46304

LaPorte County, Indiana CCO Meeting Presentation [.pdf]
Press Release [.pdf]
Thursday, August 29, 2019
CCO meeting 2-4 pm | Open House 5-7 pm
Indiana Dunes National Lakeshore | Training Room
1100 N. Mineral Springs Road
Porter, Indiana 46304

Lake Michigan Community Consultation Officers Meeting and Open House in Michigan

Manistee County, Michigan CCO Meeting Presentation [.pdf]
Press Release [.pdf]
Tuesday, August 13, 2019
CCO meeting 2-4 pm | Open House 5-7 pm
Manistee County Emergency Management
1525 E. Parkdale Ave.
Manistee, MI 49660

Benzie County, Michigan CCO Meeting Presentation [.pdf]
Press Release [.pdf]
Wednesday, August 14, 2019
CCO meeting 2-4 pm | Open House 5-7 pm
Benzie County Office of Emergency Management
448 Court Place
Beulah, MI 49617

Emmet County, Michigan CCO Meeting Presentation [.pdf]
Press Release [.pdf]
Thursday, August 15, 2019
CCO meeting 2-4 pm | Open House 5-7 pm
Harbor Springs City Hall
160 Zoll Street
Harbor Springs, MI 49740

Lake St. Clair Consultation Coordination Officer and Open House Meetings

St. Clair County, Michigan CCO Meeting Presentation [.pdf]
Tuesday, February 26, 2019
CCO 1:00-3:00pm, Open House 4:00-6:00pm
Clay Township Hall
4710 Pointe Tremble Road (M29)
Clay Township, Michigan 48001

Wayne County, Michigan CCO Meeting Presentation [.pdf]
Wednesday, February 27, 2019
CCO 2:00-4:00pm, Open House 5:00-7:00pm
Wayne County Community College, Frank Hayden Room
1001 W. Fort Street
Detroit, MI 48226

Macomb County, Michigan CCO Meeting Presentation [.pdf]
Thursday, February 28, 2019
CCO 2:00-4:00pm, Open House 5:00-7:00pm
Macomb Community College
K Building, Macomb Room South (K301S)
14500 Twelve Mile Road
Warren, Michigan 48088

Updated Fact Sheets

Wave Hazards and VE Zones on the Great Lakes Fact Sheet:

The Letter of Map Revision Process Fact Sheet:

Using LiDAR for Map Amendments Fact Sheet:

Understanding Risks Along the Great Lakes: The Impact of Coastal Armoring Structures on Flood Hazards Fact Sheet:

Coastal Flood Risks and Floodplain Mapping in Lake St. Clair Fact Sheet:

The fact sheets above are posted on the Fact Sheets page.

Lake Erie Coastal Flood Study Prelim FIRM roll-out: Consultation Coordination Officer and Open House Meetings

Monroe County, Michigan CCO Meeting Presentation [.pdf]
Wednesday, September 19, 2018
CCO 2:00-4:00pm, Open House 5:00-7:00pm
Michigan State University: Monroe County Extension Services
963 S. Raisinville Road
Monroe, MI 48161

Lucas County, Ohio CCO Meeting Presentation [.pdf]
Thursday, September 20, 2018
CCO 2:00-4:00pm, Open House 5:00-7:00pm
Train Station: Grand Lobby
300 Dr. Martin Luther King Jr. Drive
Toledo, OH 43604

Lake Superior Flood Risk Review Meetings

Flood Risk Review meetings held in Minnesota, Wisconsin and Michigan for Lake Superior:

Minnesota

Cook & Lake CountiesFRR Presentation [.pdf]
May 2, 2018, 2:30pm-4:30pm
Two Harbors Public Library
320 Waterfront Drive
Two Harbors, MN 55616

St. Louis CountyFRR Presentation [.pdf]
May 2, 2018, 10:30am-12:30pm
Duluth Public Library
520 West Superior Street
Duluth, MN 55802

Wisconsin

Douglas CountyFRR Presentation [.pdf]
June 4, 2018, 2:00pm-4:00pm
1316 North 14th Street, Room 204
Superior, WI 54880

Bayfield & Ashland CountiesFRR Presentation [.pdf]
June 5, 2018, 9:00am-11:00am
WITC Ashland, Room 204
2100 Beaser Avenue
Ashland WI 54806

Michigan

Marquette & Alger CountiesFRR Presentation [.pdf]
July 10, 2018, 1:00pm-3:00pm
Peter White Public Library,
Shiras Room, Upper Level
217 North Front Street
Marquette, MI 49855

Baraga CountyFRR Presentation [.pdf]
July 12, 2018, 9:30am-11:30am
Baraga County Courthouse, Circuit Courtroom
16 North 3rd Street
L’Anse, MI 49946

Chippewa CountyFRR Presentation [.pdf]
July 11, 2018, 2:00pm-4:00pm
Bayliss Public Library, Community Room
541 Library Drive
Sault Ste. Marie, MI 49783

Lake Huron Flood Risk Review Meetings

Flood Risk Review meetings held in Michigan for Lake Huron:

Sanilac & St. Clair CountiesFRR Presentation [.pdf]
April 24, 2018, 3:00-5:00pm
Lexington Community Center
6964 Huron Avenue
Lexington, MI 48450

Huron CountyFRR Presentation [.pdf]
April 25, 2018, 4:00-6:00pm
Port Austin Welcome Center,
2 West Spring Street
Post Austin, MI 48467

Iosco & Arenac CountiesFRR Presentation [.pdf]
April 26, 2018, 4:00-6:00pm
East Tawas City Hall (Council Chambers)
760 Newman Street
East Tawas, MI 48730

Bay CountyFRR Presentation [.pdf]
May 14, 2018, 2:00-4:00pm
Bay City Hall, Room 317,
301 Washington Avenue
Bay City, MI 46708

Alpena & Alcona CountiesFRR Presentation [.pdf]
June 25, 2018, 3:00-5:00pm
Alpena Township Building,
4385 U.S. Highway 23 North
Alpena, MI 49707

Cheboygan & Presque Isle CountiesFRR Presentation [.pdf]
June 26, 2018, 3:00-5:00pm
Cheboygan City Hall – Council Chambers
403 North Huron Street
Cheboygan, MI 49721

Mackinac CountyFRR Presentation [.pdf]
July 11, 2018, 10:00am-12:00pm
St. Ignace Public Library,
110 West Spruce Street
St. Ignace, MI 49781

Chippewa CountyFRR Presentation [.pdf]
July 11, 2018, 2:00pm-4:00pm
Bayliss Public Library, Community Room,
541 Library Drive
Sault Ste. Marie, MI 49783

State of New York Flood Risk Review Meetings

Ontario Work Maps
Here are the meeting materials for the Lake Ontario and Lake Erie Flood Risk Review Meetings in New York.

Lake Ontario

Cayuga County
July 24, 2017

Jefferson County
July 25, 2017

Oswego County
July 25, 2017

Wayne County
November 28, 2017
Agenda [.pdf], Fact Sheet [.pdf], FRR Presentation [.pdf]

Monroe County
November 28, 2017
Agenda [.pdf], Fact Sheet [.pdf], FRR Presentation [.pdf]

Orleans County
November 29, 2017
Agenda [.pdf], Fact Sheet [.pdf], FRR Presentation [.pdf]

Seneca Nation
December 6, 2017
Agenda [.pdf], FRR Presentation [.pdf]

Lake Erie

Chautauqua County
December 19, 2017
Agenda [.pdf], FRR Presentation [.pdf]

Erie County
January 18, 2018
Agenda [.pdf], FRR Presentation [.pdf]

Lake Erie Consultation Coordination Officer and Open House Meetings

FEMA invites Lake Erie Shoreline public officials, property owners, realtors, lenders, and insurance agents to learn more about flood risk and hazard mitigation within their community at upcoming CCO and Open House meetings. The CCO meetings are hosted to provide county officials with an opportunity to review a recently completed preliminary Flood Insurance Study (FIS) and its accompanying preliminary Flood Insurance Rate Maps (FIRMs). The FIS and the FIRMs provide base flood (also known as the one percent annual chance event) information, designate areas that are subject to significant flood hazards within the county, and offer information that public officials may use when permitting development in the floodplain. During the CCO meetings, any changes in flood risk will be explained and participants will have an opportunity to provide feedback on the FIRMs and FIS report.

Following the CCO meetings, Open House meetings are hosted for the public to meet with representatives from various local, state, and federal agencies who will provide the most current information about flood risk, flood insurance, floodplain development regulations, and the process for floodplain mapping within their county. The newly prepared preliminary FIRMs will be on display. See FEMA’s Preliminary Flood Hazard Data page and FEMA’s Preliminary Flood Hazard Layer mapping application for additional information.

Lorain County CCO Meeting Presentation [.pdf]
Tuesday, November 28, 2017
CCO 2:00-4:00pm, Open House 5:00-7:00pm
Sunset Terrace at Lakeview Park
1800 W Erie Ave
Lorain, OH 44052

Erie CountyCCO Meeting Presentation [.pdf]
Wednesday, November 29, 2017
CCO 2:00-4:00pm, Open House 5:00-7:00pm
Erie County Facilities Building
3rd Floor Commission Chambers
2900 Columbus Avenue
Sandusky, OH 44870

Cuyahoga CountyCCO Meeting Presentation [.pdf]
Thursday, November 30, 2017
CCO 2:00-4:00pm, Open House 4:30-6:30pm
Cleveland Public Library – Martin Luther King, Jr Branch
1962 Stokes Blvd.
Cleveland, OH 44106

Lake CountyCCO Meeting Presentation [.pdf]
Tuesday, December 5, 2017
CCO 2:00-4:00pm, Open House 5:00-7:00pm
Lake Erie College
Arthur S. Holden Center – Coe Conference Room
391 West Washington Street
Painesville, OH 44077

Ashtabula CountyCCO Meeting Presentation [.pdf]
Wednesday, December 6, 2017
CCO 2:00-4:00pm, Open House 5:00-7:00pm
Ashtabula County Courthouse Commissioners Room
25 W. Jefferson Street
Jefferson, OH 44047

Ottawa/Sandusky CountiesCCO Meeting Presentation [.pdf]
Thursday, December 7, 2017
CCO 2:00-4:00pm, Open House 5:00-7:00pm
County Courthouse EOC Meeting Room
315 Madison St.
Port Clinton, OH 43452