FEMA flood zones · Nebraska

Phelps County, Nebraska Flood Zone Map

9 flood insurance claims·$79,046 paid·3 federal flood & hurricane disasters

10% of Phelps 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 Phelps 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 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 1 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 $37,182 paid, the year of Severe Winter Storm, Straight-line Winds, and Flooding.

1992: 1 claims1993: 2 claims2007: 2 claims2015: 1 claims2019: 3 claims1980199020002010

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

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

Federal disasters

14 federal disaster declarations since 1967, 3 of them floods, coastal storms or hurricanes.

DisasterBegan
Severe Winter Storm, Straight-line Winds, And FloodingMar 9, 2019
Severe Storms, Tornadoes, Straight-line Winds, And FloodingJun 14, 2014
Severe Storms, Tornadoes, Straight Line Winds, And FloodingJun 19, 2011
Severe Storms And FloodingJun 1, 2010
Severe Storms, Tornadoes, And FloodingMay 22, 2008
Severe Winter StormsDec 19, 2006
Severe Winter StormNov 27, 2005
Hurricane Katrina EvacueesAug 29, 2005

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

Recorded flood events

13 since 1996: 9 flash floods and 4 river or area floods.

EventDateDamage
Flash FloodJul 8, 2019$100,000
Flash FloodJul 4, 2019$25,000
Flash FloodJun 17, 2016$10,000
FloodSep 24, 2013—
FloodOct 1, 2013$5,000
FloodMay 24, 2011$50,000
Flash FloodJun 13, 2010$10,000
Flash FloodMay 29, 2008$30,000

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

From the storm reports

Flash Flood · Jul 8, 2019. Excessive rainfall, flash flooding, and severe winds occurred on this Monday afternoon and evening. Widely scattered thunderstorms began forming around 1 PM CST along and west of Highway 183. By 2 PM CST, a persistent line segment of thunderstorms began affecting western Dawson county. Over the following four hours, this southwest-northeast oriented line slowly crept east across Dawson county into western Buffalo…

Flash Flood · Jul 4, 2019. Hail up to the size of golf balls and damaging winds occurred on this Thursday night. Just after 9 PM CST, scattered, small thunderstorms began developing between Elwood and Minden. The storms increased in size and combined into an east-west oriented multi-cell line that was stationary across Gosper, Phelps, and Kearney counties. This line remained stationary through 1 AM CST Friday. However, between midnight and…

Flash Flood · Jun 17, 2016. During a June that featured a below-average quantity of severe weather within South Central Nebraska, this late Friday afternoon-night episode ended up being the most widespread round of the month. The majority of severe storms targeted areas west of the Highway 281 corridor, mainly producing damaging winds and locally heavy rainfall/flooding, along with a few reports of large hail. Some of the more noteworthy win…

Flood · Sep 24, 2013. During the second week of September, an upper-level low pressure system formed and became cut off from the mean flow over the Intermountain West. This low slowly migrated from near Las Vegas north to Idaho. Subtropical high pressure remained stationary over the Southern Plains. This configuration channeled a stream of anomalously high moisture into the Rockies. With surface high pressure essentially stationary ove…

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 Phelps County

If a building in Phelps 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.