FEMA flood zones · Oklahoma

Roger Mills County, Oklahoma Flood Zone Map

7% of Roger Mills County’s area is in FEMA’s high-risk flood zones.

Share of the whole county outline, rivers and lakes included; parts FEMA hasn’t mapped count as zero.

Coastal high risk (V, VE)FloodwayHigh risk (A, AE)Moderate (X, 500-year)Minimal (X)Undetermined (D)

Shaded areas are FEMA’s mapped flood hazard zones in and around Roger Mills County, Oklahoma. Zoomed out they are simplified; at street level the map switches to FEMA’s exact layer. Tap anywhere to check that spot, or search an address above.

In their words

1 NOAA storm reports from Roger Mills County describe what happened, in the words of the forecasters who covered it. Read the Oklahoma flood stories →

Federal disasters

32 federal disaster declarations since 1990.

DisasterBegan
840 Road FireMar 14, 2025
Severe Storms, Straight-line Winds, Tornadoes, And FloodingMay 19, 2024
Severe Winter StormFeb 8, 2021
Severe Winter StormsFeb 8, 2021
Severe Winter StormOct 26, 2020
Severe Storms, Straight-line Winds, Tornadoes, And FloodingMay 7, 2019
WildfiresApr 11, 2018
Severe Storms, Tornadoes, Straight-line Winds, And FloodingMay 16, 2017

Weather and water disasters only; most recent first. Source: OpenFEMA Disaster Declarations.

Recorded flood events

10 since 1996: 8 flash floods and 2 river or area floods.

EventDateDamage
Flash FloodJun 8, 2022—
Flash FloodAug 28, 2018—
Flash FloodMay 16, 2017—
Flash FloodMay 26, 2016—
FloodAug 23, 2016$40,000
Flash FloodMay 25, 2010—
Flash FloodJun 8, 2008—
FloodAug 30, 2003—

— = no damage estimate in the record. Source: NOAA Storm Events Database.

From the storm reports

Flash Flood · Jun 8, 2022. A complex of storms moved into western Oklahoma from the Texas panhandle during the early morning hours of the 8th, with reports of large hail and severe wind gusts received.

Flash Flood · Aug 28, 2018. A line of storms formed along a cold front entering northwest Oklahoma on the evening of the 28th. This line quickly morphed into a more or less stationary area resulting in some flash flooding.

Flash Flood · May 16, 2017. Storms formed along the dryline in the Texas panhandle on the afternoon of the 16th before moving eastward. As a cold front caught up to the storms, convection increased and storms began to form into a line. This line continued eastward across the state overnight into the 17th.

Flash Flood · May 26, 2016. Storms formed along the dryline in the panhandles and western Oklahoma during the afternoon and evening hours of the 26th before moving eastward through Oklahoma and western north Texas.

National Weather Service narratives, lightly trimmed. Source: NOAA Storm Events Database.

The zones you’ll see on the map

Every colour on the map above is a place on this drawing: where the ground sits relative to the flood FEMA plans for.

Cross-section of a river floodplainDiagram: a river valley. The floodway is the channel and the land beside it; the 1%-annual-chance flood surface (the base flood elevation) covers the valley floor as zone A or AE; a narrow band higher up is shaded X, the 0.2% floodplain; higher ground is X.0.2% CHANCE A YEAR (500-YEAR)BASE FLOOD ELEVATION · 1% A YEARXAEFloodwayAEX
  1. A / AE Inside the 1%-a-year floodplain: about a 26% chance of flooding over a 30-year mortgage. AE has a mapped base flood elevation; plain A does not.
  2. Floodway The channel and the land beside it that has to be kept clear enough to carry the flood. Building here is tightly limited.
  3. X shaded The 0.2% (500-year) floodplain, plus some levee-protected and very shallow flood areas.
  4. X Outside both lines. No federal requirement to insure, which is not the same as no risk.

Every flood zone code explained →

Flood insurance in Roger Mills County

If a building in Roger Mills County is in a high-risk zone (A or V) and its mortgage comes from a federally regulated or insured lender, or is federally backed, flood insurance is required.

Outside those zones it is optional, and often worth having: from 2014 to 2024 nearly one-third of NFIP claims came from outside the high-risk Special Flood Hazard Area. Since Risk Rating 2.0, NFIP premiums are set for each building, so the only reliable price is a quote: FloodSmart.gov or a local agent.