FEMA flood zones · Missouri

Nodaway County, Missouri Flood Zone Map

7 flood insurance claims·$148,619 paid·4 federal flood & hurricane disasters

10% of Nodaway County’s area is in FEMA’s high-risk flood zones, and another 2% in shaded X (mostly the 0.2% floodplain and areas behind levees).

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 Nodaway County, Missouri. 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 Nodaway County floods

Flash flooding from summer thunderstorms dominates the flood profile of Nodaway County, supported by 31 recorded flash flood events compared to 29 general flood events over the last 30 years.

Severe weather instances illustrate these risks, such as the multiple rounds of thunderstorms that produced flash flooding, hail, and gusty winds on August 29, 2019. Heavy rain and slow-moving storms also impacted the region on June 28, 2017, bringing tree damage to rural parts of Nodaway County alongside widespread severe weather in northern Missouri. Additional moderate to heavy rain caused isolated minor flooding and road closures on July 15, 2020.

National Flood Insurance Program records show claims concentrated primarily in Zone A, which accounts for 6 claims with an average payout of $21,103 and an average recorded water depth of 17 inches. Zone X_SHADED recorded a single claim with a $22,000 payout and an average recorded water depth of 4 inches. Homeowners and real estate agents with properties located within Zone A should pay the closest attention to these flood 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 15 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 2007, with 2 claims and $94,781 paid, the year of Severe Storms and Flooding.

1984: 1 claims1993: 2 claims1995: 1 claims2007: 2 claims2017: 1 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

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

Federal disasters

21 federal disaster declarations since 1965, 4 of them floods, coastal storms or hurricanes.

DisasterBegan
Severe Storms, Tornadoes, And FloodingApr 29, 2019
Severe Storms, Tornadoes, Straight-line Winds, And FloodingMay 15, 2015
Severe Storms, Tornadoes, Straight-line Winds, And FloodingSep 9, 2014
Severe Winter StormJan 31, 2011
Severe Storms, Flooding, And TornadoesJun 12, 2010
Severe Winter StormJan 26, 2009
Severe Storms And FloodingJun 1, 2008
Severe Winter StormsDec 8, 2007

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

Recorded flood events

60 since 1996: 31 flash floods and 29 river or area floods.

EventDateDamage
Flash FloodJul 15, 2020—
Flash FloodAug 29, 2019—
FloodJun 29, 2017—
Flash FloodJun 28, 2017—
Flash FloodMay 16, 2015—
Flash FloodJul 16, 2015—
Flash FloodJun 11, 2015—
Flash FloodAug 9, 2015—

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

From the storm reports

Flash Flood · Jul 15, 2020. Moderate to heavy rain moved into the area causing some isolated minor flooding in Andrew and Macon Counties. Some isolated road closures resulted, but no damage was reported with this flooding.

Flash Flood · Aug 29, 2019. Multiple rounds of thunderstorms produced flash flooding, hail round 1 inch, and gusty winds that caused some minor damage.

Flood · Jun 29, 2017. On the evening of June 28 a complex of supercell thunderstorms moved into northern Missouri, producing widespread large hail and damaging winds, mainly north of Interstate 70. These storms also produced at least 3 tornadoes, all north of Highway 36. The strongest damage was located in Harrison County where some low-end EF-1 damage to a residence occurred. Otherwise, the damage was confined to tree damage to rural…

Flash Flood · Jun 28, 2017. On the evening of June 28 a complex of supercell thunderstorms moved into northern Missouri, producing widespread large hail and damaging winds, mainly north of Interstate 70. These storms also produced at least 3 tornadoes, all north of Highway 36. The strongest damage was located in Harrison County where some low-end EF-1 damage to a residence occurred. Otherwise, the damage was confined to tree damage to rural…

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 Nodaway County

If a building in Nodaway 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.