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
