FEMA flood zones · Alabama

Monroe County, Alabama Flood Zone Map

24 flood insurance claims·$110,938 paid·9 federal flood & hurricane disasters

12% of Monroe 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 Monroe County, Alabama. 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 Monroe County floods

Flash flooding from severe weather and heavy rain systems dominates the local flood risk profile, accounting for 24 of the 36 total flood events recorded over the last 30 years alongside 5 tropical storms and 4 hurricanes. Historical events documented by NOAA include severe weather driven by strong wind shear and instability in June 2023, as well as heavy rain from an approaching cold front that caused flooding across the area in February 2022.

National Flood Insurance Program records indicate that properties situated in high-risk Zone A have filed the highest volume of claims at 14, resulting in an average payout of $7,438 and an average recorded water depth of 2 inches. Properties categorized under Zone UNKNOWN recorded 8 claims with an average payout of $4,010 and an average recorded water depth of 4 inches, while Zone V and Zone X each recorded a single claim.

Homeowners and real estate agents managing properties located within high-risk Zone A and unmapped or unknown zones should pay the closest attention to flood risk, given the historical concentration of claims and the frequent occurrence of flash flooding driven by severe storms.

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 3 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 1990, with 9 claims and $52,263 paid, the year of Severe Storms, Tornadoes & Flooding.

1979: 4 claims1980: 3 claims1983: 1 claims1985: 1 claims1990: 9 claims2004: 2 claims2005: 2 claims2013: 1 claims2016: 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

7 NOAA storm reports from Monroe County describe what happened, in the words of the forecasters who covered it. Read the Alabama flood stories →

Federal disasters

26 federal disaster declarations since 1975, 9 of them floods, coastal storms or hurricanes.

DisasterBegan
Hurricane HeleneSep 22, 2024
Hurricane ZetaOct 28, 2020
Hurricane SallySep 14, 2020
Hurricane NateOct 6, 2017
Hurricane IrmaSep 8, 2017
Severe Storms, Tornadoes, Straight-line Winds, And FloodingDec 23, 2015
Hurricane IsaacAug 26, 2012
Severe Storms, Tornadoes, And Straight-line WindsApr 27, 2011

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

Recorded flood events

36 since 1996: 24 flash floods and 3 river or area floods.

EventDateDamage
Flash FloodJun 15, 2023—
Flash FloodAug 24, 2022—
Flash FloodFeb 3, 2022$50,000
Flash FloodFeb 3, 2022—
Tropical StormOct 28, 2020—
Tropical StormSep 15, 2020—
FloodFeb 9, 2020—
Tropical StormOct 7, 2017—

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

From the storm reports

Flash Flood · Jun 15, 2023. Unusually strong wind shear combined with strong instability and numerous disturbances led to a very active period of severe weather through the month of June. Numerous reports of large hail and damaging winds were recorded along with a few tornadoes.

Flash Flood · Feb 3, 2022. A very moist and unstable airmass developed ahead of an approaching cold front. Storms developed along the front and produced damaging wind gusts as they moved across southeast Mississippi and southwest Alabama. Heavy rain caused flooding across portions of the area.

Tropical Storm · Oct 28, 2020. Hurricane Zeta made landfall in southeast Louisiana during the late afternoon hours of Wednesday, October 28th as a strong category 2 hurricane with maximum sustained winds of 110 mph. Zeta quickly raced northeast and moved across inland southeast Mississippi and inland southwest Alabama during the evening hours. Shortly after midnight, Thursday, October 29th, Zeta weakened to a tropical storm while moving across…

Tropical Storm · Sep 15, 2020. Hurricane Sally made landfall in Gulf Shores, AL at 5am on Wednesday, September 16th as a strong Category 2 hurricane with maximum sustained winds of 105 mph. Sally produced widespread wind, storm surge, and freshwater flooding across coastal AL and the western Florida Panhandle. Flood and wind damage also extended well inland into inland southwest Alabama and south central Alabama. Sally was an extremely slow mov…

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 Monroe County

If a building in Monroe 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.