Enter any address in Medina County, Texas to see its FEMA flood zone
Flash flooding from thunderstorms is the primary flood hazard in Medina County. Over the past 30 years, NOAA Storm Events data recorded 98 flash flood events, resulting in 3 fatalities. Recent examples include flash flooding caused by heavy rain from slow-moving thunderstorms on September 3, 2024, and on November 4, 2024, when storms produced large hail and heavy rain.
National Flood Insurance Program (NFIP) claims data shows that properties in Zone A experienced the highest number of claims, with an average payout of $37,076 and an average water depth of 6.9 feet. Properties in Zone X also saw significant claims, averaging $18,815 with 4.3 feet of water. Homeowners in Zone A, and those in other zones with documented flood claims and water intrusion, should pay particular attention to flood risk.
Summary generated from NOAA storm narratives and NFIP claim data for this county. Not predictive.
21 NOAA storm reports from this county describe what happened, in the words of the meteorologists who were there.
Medina County, Texas has recorded 103 flood-related events since 1996 according to NOAA's Storm Events Database, including 98 flash floods and 5 river or area floods. The county has received 18 federal disaster declarations, 3 of which involved flooding or coastal storms. Enter any address above to check its FEMA flood zone designation.
FEMA Disaster Declarations (1993–2021)
Source: OpenFEMA Disaster Declarations Summaries.
| Declaration | Type | Date |
|---|---|---|
| Severe Winter Storm | Severe Ice Storm | Feb 11, 2021 |
| Severe Winter Storms | Severe Ice Storm | Feb 11, 2021 |
| Covid-19 | Biological | Jan 20, 2020 |
| Covid-19 Pandemic | Biological | Jan 20, 2020 |
| Tropical Storm Alex | Hurricane | Jun 27, 2010 |
| Wildfires | Fire | Mar 14, 2008 |
| Tropical Storm Erin | Severe Storm | Aug 14, 2007 |
| Severe Storms, Tornadoes, And Flooding | Severe Storm | Jun 16, 2007 |
| Extreme Wildfire Threat | Fire | Nov 27, 2005 |
| Hurricane Rita | Hurricane | Sep 23, 2005 |
NOAA Storm Events Database (1996–2025)
Source: NOAA National Weather Service Storm Events Database.
| Type | Date | Damage |
|---|---|---|
| Flash Flood | Jun 12, 2025 | 0.00K |
| Flash Flood | Nov 4, 2024 | 0.00K (1 deaths) |
| Flash Flood | Sep 3, 2024 | 0.00K |
| Flash Flood | May 1, 2021 | 0.00K |
| Flash Flood | Mar 28, 2018 | 0.00K |
| Flood | Sep 22, 2018 | 50.00K |
| Flash Flood | Sep 22, 2018 | 0.00K |
| Flash Flood | Sep 9, 2018 | 0.00K |
| Flash Flood | Aug 21, 2016 | 0.00K |
| Flash Flood | May 24, 2015 | 0.00K (1 deaths) |
Flash Flood — Jun 12, 2025
A mid-level shortwave trough moved over Texas and combined with an abnormally moist airmass to generate thunderstorms. These storms were very efficient rain producers dropping locally heavy rain that led to flash flooding. There were also a few severe thunderstorms.
Flash Flood — Nov 4, 2024
A cold front moved into a very warm, moist airmass and generated thunderstorms. Temperatures in the warm sector were near record highs when the front moved through. Some of the storms produced large hail and heavy rain that led to flash flooding.
Flash Flood — Sep 3, 2024
Convection formed in the vicinity of a stationary front over South-Central Texas. Thunderstorms developed in an anomalously moist airmass with weak steering flow. This led to slow moving, heavy rain producing cells and flash flooding.
Flash Flood — May 1, 2021
An upper level low over the Big Bend region combined with a surface low over South Texas to generate thunderstorms. The airmass in which these storms developed was very moist with precipitable water values above the 90th percentile of the long term record. Some of these storms produced locally heavy rain that led to flash flooding.
Flash Flood — Mar 28, 2018
A cold front moved into a warm, very moist airmass over South Central Texas and generated thunderstorms. Some of these storms produced large hail and heavy rain. The heavy rain led to localized flash flooding. Rainfall totals in worst hit counties ranged from 4.09 to 5.72 inches.
Source: NOAA National Weather Service Storm Events Database.
Source: OpenFEMA NFIP Individual Claims (2.25M records analyzed).
FEMA assigns flood zone designations to areas in Medina County, Texas:
AE High Risk — 1% annual chance of flooding. Insurance required.
VE Very High Risk — Coastal flooding with wave action.
X (Shaded) Moderate Risk — 500-year floodplain.
X Low Risk — Outside major floodplains.
Properties in Medina County, Texas that are in FEMA-designated Special Flood Hazard Areas (zones A and V) with federally backed mortgages are required to carry flood insurance.
Even outside high-risk zones, flood insurance is recommended. From 2014 to 2024, nearly one-third of NFIP claims came from outside the high-risk Special Flood Hazard Area.
Visit FloodSmart.gov to find an agent and get a quote.