FEMA flood zones · Missouri

Randolph County, Missouri Flood Zone Map

3 flood insurance claims·$1,988 paid·1 federal flood & hurricane disasters

11% of Randolph County’s area is in FEMA’s high-risk flood zones, and another 1% 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 Randolph 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 Randolph County floods

Flash flooding from severe summer thunderstorms dominates the flood risk profile in Randolph County, Missouri, accounting for 15 out of 16 recorded flood events over the last 30 years, while standard river floods make up the remaining single event.

Severe weather patterns drive these incidents, as demonstrated by storms in October 2014 and May 2016 that brought heavy rains, large hail, and damaging winds to the region. Subsequent severe weather rounds in March 2018 and June 2020 continued this pattern, producing heavy rainfall and localized flash flooding across the area.

National Flood Insurance Program records reflect limited claim activity across the county. Two claims were filed in unshaded Zone X, resulting in an average payout of zero dollars and an average recorded water depth of zero inches. One claim was filed in Zone A, resulting in an average payout of $1,988 and an average recorded water depth of zero inches. Residents with properties located within Zone A and unshaded Zone X should pay the closest attention to this risk profile, particularly during severe convective weather and intense overnight thunderstorm activity.

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

Flood claims, year by year

The worst year was 1999, with 1 claims and $1,988 paid.

1999: 1 claims2002: 1 claims2013: 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

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

Federal disasters

17 federal disaster declarations since 1973, 1 of them floods, coastal storms or hurricanes.

DisasterBegan
Severe Storms, Tornadoes, And FloodingApr 29, 2019
Severe Winter StormJan 31, 2011
Severe Winter Storm And SnowstormJan 31, 2011
Severe Winter StormJan 26, 2009
Severe Storms, Flooding, And A TornadoSep 11, 2008
Severe Storms And FloodingJun 1, 2008
Severe Winter StormsDec 8, 2007
Severe Storms, Tornadoes And FloodingMar 8, 2006

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

Recorded flood events

16 since 1996: 15 flash floods and 1 river or area floods.

EventDateDamage
Flash FloodJun 3, 2020—
Flash FloodMar 26, 2018—
Flash FloodMay 27, 2016—
Flash FloodOct 2, 2014—
Flash FloodJul 30, 2010—
Flash FloodJul 26, 2010—
FloodApr 24, 2010—
Flash FloodJul 30, 2008—

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

From the storm reports

Flash Flood · Jun 3, 2020. Two rounds of severe storms came through the Kansas City metro area on back to back nights, both taking place late in the evening and lasting through the overnight hours. Both events were nearly identical in evolution, with a strong QLCS each night producing scattered wind damage. The June 4 QLCS produced a couple weak and brief EF-0 tornadoes that did some minor damage.

Flash Flood · Mar 26, 2018. On the morning of March 26, 2018 scattered thunderstorms moved through eastern Kansas, producing marginally severe hail. The heavy rain also caused some minor flash flooding across Cass and Jackson Counties.

Flash Flood · May 27, 2016. On the evening of May 27 a few scattered storms moved through the area, bringing some marginally severe hail and wind gusts. There was also some isolated flooding with these heavy rain producers.

Flash Flood · Oct 2, 2014. Several rounds of thunderstorms, producing large hail, damaging winds and heavy rains, developed over eastern Kansas and tracked east into western Missouri during the afternoon and evening hours of October 1st. The storms developed in the vicinity of a quasi-stationary boundary as an upper-level shortwave trough tracked through the region.

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 Randolph County

If a building in Randolph 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.