FEMA flood zones · Missouri

Daviess County, Missouri Flood Zone Map

37 flood insurance claims·$608,571 paid·3 federal flood & hurricane disasters

15% of Daviess 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 Daviess 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 Daviess County floods

River flooding from storms dominates Daviess County, with NOAA records showing 34 flood events compared to 25 flash flood events over the last 30 years. Torrential rains from passing storm systems regularly produce flooding across the area. For example, a line of thunderstorms in May 2019 dropped torrential rains that caused areas of flooding following wake low wind damage. Later that year, multiple rounds of thunderstorms in June 2019 and August 2019 produced minor flash flooding alongside gusty winds and hail.

National Flood Insurance Program records highlight the distinct risk disparity between zones. Properties located in Zone A experienced 35 claims with an average payout of $20,458 and an average recorded water depth of 14 inches. Conversely, Zone X recorded only 2 claims, averaging a $7,642 payout and an average recorded water depth of 1 inch.

Homeowners and real estate agents with properties in Zone A should pay the closest attention to flood risk, as these high-risk areas account for the vast majority of historical claims and significantly deeper average floodwaters.

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

Where the flood claims came from

Less than 1% of Daviess County’s flood insurance claims were on properties rated outside FEMA’s high-risk zones.

35 NFIP claims with a recorded rated flood zone, 1978 to date. The zone is the one FEMA used to rate that policy, which may not match today’s map. Source: OpenFEMA NFIP claims.

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 12 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 1993, with 33 claims and $556,882 paid, the year of Severe Storms & Flooding.

1993: 33 claims2007: 1 claims2017: 2 claims2019: 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

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

Federal disasters

23 federal disaster declarations since 1965, 3 of them floods, coastal storms or hurricanes.

DisasterBegan
Severe Storms, Straight-line Winds, Tornadoes, And FloodingJun 24, 2021
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

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

Recorded flood events

59 since 1996: 25 flash floods and 34 river or area floods.

EventDateDamage
Flash FloodJun 30, 2021—
FloodJun 25, 2021—
Flash FloodAug 29, 2019—
Flash FloodJun 22, 2019—
FloodMay 21, 2019—
FloodJun 29, 2017$10,000
FloodJul 13, 2017—
FloodApr 5, 2017—

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

From the storm reports

Flash Flood · Jun 30, 2021. Heavy rain caused some minor flash flooding in Daviess County.

Flood · Jun 25, 2021. Late in the afternoon, and through the evening hours on June 24 a cluster of storms over southeast Nebraska congealed into a line of thunderstorms that focused across northern Missouri. Most notably within this line of storms was a cluster of QLCS tornadoes that formed in Grundy County. There may have been other tornadoes associated with circulations that were noted on radar, but emergency management confirmed dam…

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

Flash Flood · Jun 22, 2019. Several rounds of severe storms moved through portions of northern Missouri on June 22, into the late evening hours. These storms produced several areas of strong winds approaching and exceeding 60 mph, and also produced several areas of minor flash flooding.

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 Daviess County

If a building in Daviess 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.