FEMA flood zones · Mississippi

Yalobusha County, Mississippi Flood Zone Map

39 flood insurance claims·$363,829 paid·3 federal flood & hurricane disasters

20% of Yalobusha 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 Yalobusha County, Mississippi. 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 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 1983, with 15 claims and $90,069 paid.

1982: 2 claims1983: 15 claims1984: 13 claims1991: 1 claims1993: 2 claims1994: 1 claims2001: 1 claims2019: 1 claims2021: 1 claims2024: 1 claims2025: 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

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

Federal disasters

20 federal disaster declarations since 1971, 3 of them floods, coastal storms or hurricanes.

DisasterBegan
Severe Winter StormJan 23, 2026
Hurricane IdaAug 28, 2021
Severe Storms, Tornadoes, Straight-line Winds, And FloodingApr 12, 2020
Severe Storms, Straight-line Winds, Tornadoes, And FloodingFeb 22, 2019
Hurricane GustavAug 28, 2008
Hurricane KatrinaAug 29, 2005
Severe Storms And TornadoesFeb 16, 2001
Severe Winter Storms, Ice And Freezing RainDec 23, 1998

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

Recorded flood events

13 since 1996: 12 flash floods and 1 river or area floods.

EventDateDamage
Flash FloodMar 15, 2025—
Flash FloodJun 9, 2021—
Flash FloodJun 8, 2021$200,000
Flash FloodFeb 22, 2019$25,000
FloodFeb 22, 2018—
Flash FloodMay 2, 2010$20,000
Flash FloodSep 6, 2009—
Flash FloodFeb 24, 2007$7,000

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

From the storm reports

Flash Flood · Mar 15, 2025. An upper low over the Central Plains moved into the Upper Mississippi Valley during the evening hours of Friday, March 14, 2025. Increasing moisture advection ahead of an approaching cold front lifted dewpoints into the low to mid 60s. This coupled with increasing height falls and a mid-level 80 knot jet rotating around the main upper low supported severe thunderstorm development. Large looping hodographs, MLCAPE…

Flash Flood · Jun 9, 2021. An upper low continued to meander across the region on June 9, 2021. Weak upper-level disturbances rotated around the upper low and interacted with a very moist air mass across the Mid-South to produce several rounds of heavy rain across East-Central Arkansas and North Mississippi. There were several instances of flash flooding.

Flash Flood · Jun 8, 2021. An upper low parked over the Mid-South resulted in widespread showers and thunderstorms across North Mississippi during the early morning hours of June 8, 2021. Some locations received up to 4 inches of rain before sunrise which set the stage for flash flooding later that morning into the afternoon as a mesoscale convective vortex pushed into the Mid-South. This feature resulted in several areas of showers and thu…

Flash Flood · Feb 22, 2019. An atmospheric river of deep subtropical moisture caused the training of moderate to heavy rainfall over already saturated grounds across a large portion of north Mississippi. This additional rainfall resulted in areal and river flooding as well as some flash flooding during the day of February 22nd.

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 Yalobusha County

If a building in Yalobusha 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.