FEMA flood zones · Kansas

Norton County, Kansas Flood Zone Map

Less than 1% of Norton 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 Norton 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.

How Norton County floods

Flash flooding from severe summer thunderstorms dominates the flood risk profile in Norton County. Over the past 30 years, NOAA records show nine flash flood events resulting in one death, alongside six general flood events.

Recent weather data illustrates these hazards. On May 28, 2023, severe thunderstorms brought torrential rainfall that caused flash flooding and forced local law enforcement to perform a water rescue. Later that year on August 25, 2023, another cluster of storms produced torrential rainfall in Norton, causing water to flow into a residence's basement and a business in downtown.

Homeowners, real estate agents, and journalists should pay the closest attention to properties vulnerable to sudden, intense stormwater accumulation, particularly lower-level spaces like basements and downtown commercial properties located in areas susceptible to rapid runoff from severe storm systems.

Summary written from NOAA storm reports and NFIP claims for this county. Not a prediction.

In their words

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

Federal disasters

13 federal disaster declarations since 2005.

DisasterBegan
Severe Winter Storm, Straight-line Winds, Flooding, And WildfiresMar 14, 2025
Severe Storms And Straight Line WindsDec 15, 2021
Severe Winter Storm, Snowstorm, Straight-line Winds, And FloodingApr 28, 2017
Severe Storms And FloodingSep 2, 2016
Severe Storms, Flooding, And TornadoesJun 7, 2010
Severe Winter Storms And SnowstormDec 22, 2009
Severe Storms, Flooding And TornadoesMay 22, 2008
Severe Winter StormsDec 6, 2007

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

Recorded flood events

15 since 1996: 9 flash floods and 6 river or area floods.

EventDateDamage
FloodApr 25, 2024—
Flash FloodMay 28, 2023$5,000
Flash FloodAug 25, 2023—
FloodJul 22, 2023—
FloodSep 4, 2016—
Flash FloodSep 3, 2016— · 1 killed
FloodMay 24, 2014—
FloodOct 8, 2011—

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

From the storm reports

Flood · Apr 25, 2024. In the early afternoon of the 25th, multiple storms formed in northwestern Kansas and moved north-northeast. There were multiple clusters, or waves, of storms throughout the afternoon to overnight hours. These storms produced 3 inch diameter hail, 70 MPH thunderstorm wind gusts, and a tornado.

Flash Flood · May 28, 2023. During the evening of May 28th, severe thunderstorms developed within Northwestern Kansas. These thunderstorms produced hail up to golf balls in size as well as torrential rainfall that resulted in flash flooding. Local law enforcement had to perform one water rescue due to the flood conditions.

Flash Flood · Aug 25, 2023. A cluster of thunderstorms moved east across Northwest Kansas. Hail up to golf ball size and wind gusts up to 70 MPH were reported with these storms. In Norton the torrential rainfall from the storm activity caused water to flow into a residence's basement and a business in downtown.

Flood · Jul 22, 2023. In the afternoon of the 22nd, multiple supercells formed across eastern Colorado, southwestern Nebraska, and northwestern Kansas. These storms produced a wind gust over 70 mph and larger than 2 inch hail.

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 Norton County

If a building in Norton 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.