FEMA flood zones · Nebraska

Holt County, Nebraska Flood Zone Map

6 flood insurance claims·$4,899 paid·2 federal flood & hurricane disasters

Less than 1% of Holt 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 Holt 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 Holt County floods

Flash flooding from summer thunderstorms dominates the flood profile of Holt County, Nebraska, supported by 17 flash flood events compared to 6 general flood events over the last 30 years.

Severe weather can cause rapid inundation, as occurred on June 20, 2024, when thunderstorms along a stationary frontal boundary produced flash flooding in the Long Pine and O'Neill areas alongside tornadoes, large hail, and high winds. Broader riverine and historical flooding also occurs, driven by combinations of rain, snow, and rapid snowmelt over frozen ground. A notable historical event from March 2019 brought widespread flooding along major waterways including the Niobrara, Elkhorn, and Loup rivers, and creeks such as Long Pine and Cedar, alongside the failure of Spencer Dam and several private dams.

NFIP claims data reflect historical impacts across different zones. Properties in Zone A recorded 5 claims with an average payout of $773 and an average recorded water depth of 1 inch. Properties in Zone X_UNSHADED recorded 1 claim with an average payout of $4,126 and an average recorded water depth of 2 inches. Residents near rivers, streams, dams, and identified flood zones should pay the closest attention to these risks.

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

How deep the water got

outlet80″ door12″24″36″48″60″72″84″

In flood insurance claims here that reported a flood depth, the average was 2 inches.

Drawn to scale against an 80-inch door. Even a few inches soaks flooring, the bottom of the drywall and anything plugged in near the floor.

Average of the depths reported on claims (zero and implausible values left out); FEMA’s record doesn’t say exactly where each depth was measured. Source: OpenFEMA NFIP claims.

Flood claims, year by year

The worst year was 2019, with 3 claims and $4,899 paid, the year of Severe Winter Storm, Straight-line Winds, and Flooding.

2007: 1 claims2008: 1 claims2019: 3 claims2020: 1 claims19801990200020102020

Bar height is scaled by square root so ordinary years stay visible next to the worst one. NFIP claims by year of loss. Source: OpenFEMA.

In their words

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

Federal disasters

16 federal disaster declarations since 2003, 2 of them floods, coastal storms or hurricanes.

DisasterBegan
Severe Storms, Straight-line Winds, Tornadoes, And FloodingJun 19, 2024
Severe Storms And Straight-line WindsMay 12, 2022
Severe Winter Storm, Straight-line Winds, And FloodingMar 9, 2019
Severe Winter Storm And Straight-line WindsApr 13, 2018
Severe Winter Storm And Straight-line WindsApr 29, 2017
Severe Storms, Tornadoes, Straight-line Winds, And FloodingJun 1, 2014
Severe Storms And FloodingJun 1, 2010
Severe Storms, Ice Jams, And FloodingMar 6, 2010

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

Recorded flood events

23 since 1996: 17 flash floods and 6 river or area floods.

EventDateDamage
Flash FloodJun 20, 2024$2,000
FloodMar 16, 2019$100,000
FloodMar 13, 2019$250,000
Flash FloodSep 12, 2019—
Flash FloodSep 11, 2019—
Flash FloodJun 18, 2016—
Flash FloodJun 17, 2016—
Flash FloodJun 6, 2015—

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

From the storm reports

Flash Flood · Jun 20, 2024. Thunderstorms developed along a stationary frontal boundary, which was draped across the central Sandhills, during the late afternoon hours of June 20th. This activity became severe later on with hail up to ping pong size, thunderstorm wind gusts up to 70 MPH and a couple of tornadoes. Flash flooding was also reported in the Long Pine and O'Neill areas.

Flood · Mar 16, 2019. Historical flooding occurred in north central Nebraska as rivers, creeks and other streams rose due to the combination of snow, rain, and rapid snow melt on top of frozen ground. The greatest flooding occurred along the Niobrara, Keya Paha, Elkhorn and Loup Rivers; Ponca, Long Pine, Victoria and Cedar creeks; and one fatality occurred from the failure of Spencer Dam that is located on the Niobrara River. In additi…

Flood · Mar 13, 2019. Historical flooding occurred in north central Nebraska as rivers, creeks and other streams rose due to the combination of snow, rain, and rapid snow melt on top of frozen ground. The greatest flooding occurred along the Niobrara, Keya Paha, Elkhorn and Loup Rivers; Ponca, Long Pine, Victoria and Cedar creeks; and one fatality occurred from the failure of Spencer Dam that is located on the Niobrara River. In additi…

Flash Flood · Sep 12, 2019. A strong upper level trough of low pressure forced a cold front through western and north central Nebraska during the late afternoon and evening hours of September 11th. Thunderstorms developed in the eastern Nebraska Panhandle and moved east and southeast during the evening hours. Hail up to two and a half inches in diameter and thunderstorm wind gusts to 80 MPH were reported.

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 Holt County

If a building in Holt 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.