State-by-state

LOMA and LOMR-F guidance for every US state.

Each state page covers the typical flood drivers, major metros, common LOMA and LOMR-F scenarios, and surveyor/engineer licensing notes that apply in that state.

AL · Region 4

LOMA & LOMR-F in Alabama

Gulf storm surge, riverine flooding, and heavy rainfall

AK · Region 10

LOMA & LOMR-F in Alaska

Snowmelt, ice jams, and coastal flooding

AZ · Region 9

LOMA & LOMR-F in Arizona

Monsoon flash flooding and alluvial fan flow

AR · Region 6

LOMA & LOMR-F in Arkansas

Riverine flooding along the Arkansas, Mississippi, and White rivers

CA · Region 9

LOMA & LOMR-F in California

Atmospheric river events, Pacific storms, and levee-protected riverine systems

CO · Region 8

LOMA & LOMR-F in Colorado

Flash flooding, snowmelt, and post-wildfire runoff

CT · Region 1

LOMA & LOMR-F in Connecticut

Coastal storm surge and Connecticut River flooding

DE · Region 3

LOMA & LOMR-F in Delaware

Coastal flooding and tidal influences from Delaware Bay

FL · Region 4

LOMA & LOMR-F in Florida

Hurricane surge, king tides, and stormwater flooding

GA · Region 4

LOMA & LOMR-F in Georgia

Coastal flooding in Savannah and riverine systems inland

HI · Region 9

LOMA & LOMR-F in Hawaii

Tsunami, coastal surge, and tropical rainfall

ID · Region 10

LOMA & LOMR-F in Idaho

Snowmelt flooding along the Boise and Snake rivers

IL · Region 5

LOMA & LOMR-F in Illinois

Riverine flooding and urban stormwater

IN · Region 5

LOMA & LOMR-F in Indiana

Riverine flooding along the Ohio, Wabash, and White rivers

IA · Region 7

LOMA & LOMR-F in Iowa

Major river flooding on the Mississippi, Missouri, and Cedar rivers

KS · Region 7

LOMA & LOMR-F in Kansas

Riverine flooding along the Kansas and Arkansas rivers

KY · Region 4

LOMA & LOMR-F in Kentucky

Ohio River flooding and Appalachian flash floods

LA · Region 6

LOMA & LOMR-F in Louisiana

Hurricane surge, riverine flooding, and subsidence

ME · Region 1

LOMA & LOMR-F in Maine

Coastal flooding and river ice jams

MD · Region 3

LOMA & LOMR-F in Maryland

Chesapeake Bay flooding and urban stormwater

MA · Region 1

LOMA & LOMR-F in Massachusetts

Coastal storm surge and riverine flooding

MI · Region 5

LOMA & LOMR-F in Michigan

Great Lakes flooding and urban stormwater

MN · Region 5

LOMA & LOMR-F in Minnesota

Mississippi and Red River spring flooding

MS · Region 4

LOMA & LOMR-F in Mississippi

Gulf storm surge and Mississippi River flooding

MO · Region 7

LOMA & LOMR-F in Missouri

Missouri and Mississippi River flooding

MT · Region 8

LOMA & LOMR-F in Montana

Snowmelt flooding and ice jams

NE · Region 7

LOMA & LOMR-F in Nebraska

Platte and Missouri River flooding

NV · Region 9

LOMA & LOMR-F in Nevada

Flash flooding and alluvial fan flow

NH · Region 1

LOMA & LOMR-F in New Hampshire

Riverine flooding and coastal exposure

NJ · Region 2

LOMA & LOMR-F in New Jersey

Coastal storm surge and urban riverine flooding

NM · Region 6

LOMA & LOMR-F in New Mexico

Monsoon flash flooding and arroyo flow

NY · Region 2

LOMA & LOMR-F in New York

Coastal storm surge, urban stormwater, and Great Lakes flooding

NC · Region 4

LOMA & LOMR-F in North Carolina

Hurricane inland flooding and coastal surge

ND · Region 8

LOMA & LOMR-F in North Dakota

Red River of the North spring flooding

OH · Region 5

LOMA & LOMR-F in Ohio

Ohio River and Lake Erie flooding

OK · Region 6

LOMA & LOMR-F in Oklahoma

Flash flooding and Arkansas River events

OR · Region 10

LOMA & LOMR-F in Oregon

Atmospheric river flooding and coastal surge

PA · Region 3

LOMA & LOMR-F in Pennsylvania

Riverine flooding from the Susquehanna, Delaware, Ohio, and Schuylkill rivers

RI · Region 1

LOMA & LOMR-F in Rhode Island

Coastal flooding along Narragansett Bay

SC · Region 4

LOMA & LOMR-F in South Carolina

Hurricane surge, inland rainfall, and riverine flooding

SD · Region 8

LOMA & LOMR-F in South Dakota

Riverine flooding and flash floods in the Black Hills

TN · Region 4

LOMA & LOMR-F in Tennessee

Riverine flooding and flash floods

TX · Region 6

LOMA & LOMR-F in Texas

Hurricane surge, inland rainfall, and flash flooding

UT · Region 8

LOMA & LOMR-F in Utah

Snowmelt flooding and cloudburst flash floods

VT · Region 1

LOMA & LOMR-F in Vermont

Riverine flooding and ice jams

VA · Region 3

LOMA & LOMR-F in Virginia

Coastal flooding and Chesapeake Bay storm surge

WA · Region 10

LOMA & LOMR-F in Washington

Atmospheric river flooding and coastal surge

WV · Region 3

LOMA & LOMR-F in West Virginia

Flash flooding in Appalachian valleys

WI · Region 5

LOMA & LOMR-F in Wisconsin

Great Lakes flooding and riverine events

WY · Region 8

LOMA & LOMR-F in Wyoming

Snowmelt flooding and mountain flash flooding