FEMA flood zones · Nebraska

Kimball County, Nebraska Flood Zone Map

1 federal flood & hurricane disasters

Less than 1% of Kimball 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 Kimball County, Nebraska. 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 Kimball County floods

Flash flooding from summer thunderstorms dominates the flood profile of Kimball County, accounting for 29 out of 33 recorded flood events over the last 30 years, while general floods make up the remaining 4.

Severe weather events regularly threaten the area, as demonstrated on June 30, 2016, when thunderstorms produced torrential rainfall over a short period of time, resulting in flash flooding in southwest Kimball County. Another significant event occurred on August 14, 2022, when severe thunderstorms brought wind gusts exceeding 60 mph alongside heavy rainfall that caused street flooding within portions of Kimball. Additional heavy rainfall on August 18, 2016, produced flash flooding across Banner, Morrill, and Kimball counties.

Homeowners, real estate agents, and journalists should pay the most attention to properties vulnerable to rapid stormwater accumulation during intense seasonal downpours, particularly low-lying areas and properties lacking adequate surface drainage.

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

In their words

3 NOAA storm reports from Kimball County describe what happened, in the words of the forecasters who covered it. Read the Nebraska flood stories →

Federal disasters

8 federal disaster declarations since 1997, 1 of them floods, coastal storms or hurricanes.

DisasterBegan
Severe Winter Storm And Straight-line WindsApr 6, 2024
Severe Winter Storm, Straight-line Winds, And FloodingMar 9, 2019
Severe Winter StormsDec 19, 2006
Hurricane Katrina EvacueesAug 29, 2005
Severe Winter Storms, Flooding And TornadoesApr 10, 2001
Severe Snow Storms, Rain, And Strong WindsOct 24, 1997

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

Recorded flood events

33 since 1996: 29 flash floods and 4 river or area floods.

EventDateDamage
Flash FloodAug 14, 2022—
Flash FloodJul 28, 2018—
Flash FloodJun 30, 2016—
Flash FloodAug 18, 2016—
Flash FloodJun 12, 2016—
Flash FloodAug 11, 2015—
Flash FloodAug 10, 2015—
Flash FloodJun 27, 2014—

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

From the storm reports

Flash Flood · Aug 14, 2022. Severe thunderstorms developed during the evening of the 14th with gusty winds in excess of 60 mph. Additionally, heavy rainfall resulted in street flooding for portions of Kimball.

Flash Flood · Jul 28, 2018. Thunderstorms produced large hail, very heavy rainfall and a weak tornado across Kimball County.

Flash Flood · Jun 30, 2016. Thunderstorms produced torrential rainfall over a short period of time, with flash flooding reported in southwest Kimball County.

Flash Flood · Aug 18, 2016. Thunderstorms produced large hail and very heavy rainfall across portions of the southern Nebraska Panhandle. Flash flooding was reported in Banner, Morrill and Kimball counties.

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 Kimball County

If a building in Kimball 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.