FEMA flood zones · Kansas

Clark County, Kansas Flood Zone Map

1 federal flood & hurricane disasters

Less than 1% of Clark 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 Clark County, Kansas. 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

2 NOAA storm reports from Clark County describe what happened, in the words of the forecasters who covered it. Read the Kansas flood stories →

Federal disasters

17 federal disaster declarations since 1973, 1 of them floods, coastal storms or hurricanes.

DisasterBegan
Severe Storms, Straight-line Winds, Tornadoes, And FloodingJun 26, 2024
Severe Storms, Straight-line Winds, Tornadoes, And FloodingJul 14, 2023
Severe Winter Storms And Straight-line WindsMar 17, 2022
Severe Storms, Straight-line Winds, Tornadoes, Flooding,landslides,and MudslidesApr 28, 2019
Clark County FireMar 4, 2017
Severe Winter StormJan 13, 2017
Severe Storms, Straight-line Winds, Tornadoes, And FloodingJul 22, 2013
Severe Winter Storm And Record And Near Record SnowMar 26, 2009

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

Recorded flood events

10 since 1996: 5 flash floods and 5 river or area floods.

EventDateDamage
Flash FloodJun 30, 2024—
Flash FloodMay 18, 2017—
Flash FloodMay 16, 2017—
FloodAug 8, 2013—
FloodMay 30, 2006—
Flash FloodApr 20, 2004—
FloodJul 5, 2004—
FloodOct 24, 2000—

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

From the storm reports

Flash Flood · May 18, 2017. An upper low continued to move out over the central High Plains, while a surface low deepened over the Texas Panhandle. A warm front drifted northward over central and southwest Kansas in response to strong meridional flow over the region to the east of the upper low. A very moist air mass spread back into central and southwest Kansas to the east of a dryline. MUCAPE values upwards of 2000-3000 j/kg with 0-6km bu…

Flash Flood · May 16, 2017. A strong shortwave trough over the southwestern states moved east northeastward toward the central and southern Plains as another low pressure system dropped into the Pacific Northwest. A dryline set up and high dewpoints were in the area by mid-afternoon, resulting in even stronger CAPE. This created severe hail and wind across the counties mentioned above, as well as tornadoes in Clark, Ford, and Pawnee counties.

Flood · Aug 8, 2013. Thunderstorms developed along a cold front that was moving into the area which then became a heavy rain event. Flooding of near historic proportions was observed across far southern Ford and northern Clark counties.

Flood · Oct 24, 2000. Widespread heavy rain fell during a 24 hour period with all the listed area receiving between two and three inches of rainfall. The heaviest rains fell from southern Clark into western Barber counties where a 40 mile band of four to six inches was reported. Several reports of just over six inches were received. There was flooding across many fields and covering many open range roads. This was significant event…

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 Clark County

If a building in Clark 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.