Enter any address in Wilson County, Texas to see its FEMA flood zone
Flash flooding from thunderstorms is the most frequent flood event in Wilson County, TX, with 70 occurrences recorded in the last 30 years. This type of flooding has been observed during periods of heavy rainfall, such as on October 14, 2021, when a complex weather pattern brought excessive rain, and on September 10, 2020, when thunderstorms generated heavy downpours. Tropical Storm Harvey also impacted the region on August 26, 2017, contributing to flood conditions.
National Flood Insurance Program (NFIP) data indicates that properties in Zone A have experienced the highest number of claims (31) with an average water depth of 13.9 feet. Zone X_UNSHADED also shows a significant number of claims (15) with an average water depth of 7.4 feet, and higher average payouts than Zone A. Homeowners in Zone A and Zone X_UNSHADED, as well as those in areas with lower flood protection levels, should pay particular attention to flood risk.
Summary generated from NOAA storm narratives and NFIP claim data for this county. Not predictive.
22 NOAA storm reports from this county describe what happened, in the words of the meteorologists who were there.
Wilson County, Texas has recorded 74 flood-related events since 1996 according to NOAA's Storm Events Database, including 70 flash floods and 2 river or area floods. The county has received 17 federal disaster declarations, 2 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 |
| Severe Storms, Tornadoes, Straight-line Winds, And Flooding | Severe Storm | Oct 22, 2015 |
| Severe Storms, Tornadoes, Straight-line Winds And Flooding | Severe Storm | May 4, 2015 |
| Tropical Storm Alex | Hurricane | Jun 27, 2010 |
| Wildfires | Fire | Mar 14, 2008 |
| 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 | Oct 14, 2021 | 0.00K |
| Flash Flood | Sep 10, 2020 | 1.00M |
| Flash Flood | Jun 4, 2019 | 0.00K |
| Tropical Storm | Aug 26, 2017 | 0.00K |
| Flash Flood | Aug 21, 2016 | 0.00K |
| Flash Flood | Aug 20, 2016 | 0.00K |
| Flash Flood | Oct 30, 2015 | 0.00K |
| Flash Flood | Mar 21, 2015 | 0.00K |
| Flash Flood | Apr 17, 2015 | 30.00K |
| Flash Flood | May 14, 2015 | 0.00K |
Flash Flood — Oct 14, 2021
A complicated weather pattern developed over South Central Texas when a dryline and cold front moved out of West Texas as an upper level low moved into the Central Plains. At the same time the remnants of Pacific Hurricane Pamela moved across northern Mexico. The airmass over the region was warm and moist with near record precipitable water values. This set up led to an excessive rain episode w...
Flash Flood — Sep 10, 2020
A cold front moved into a warm, moist airmass over South Central Texas generating thunderstorms. Some of these storms produced heavy rain that led to flash flooding.
Flash Flood — Jun 4, 2019
An upper level shortwave trough triggered thunderstorms rooted in a very moist boundary layer with precipitable water values near 2.0 inches. Some of these storms produced heavy rain that led to flash flooding.
Tropical Storm — Aug 26, 2017
Hurricane Harvey moved onshore as a Category 4 hurricane over San Jose Island east of Rockport during the late evening of August 25th. Harvey moved inland entering southern DeWitt County during the morning of August 26th as a Category 1 hurricane. It continued to weaken as it moved farther inland eventually reaching south central Gonzales County as a tropical storm during the late evening of A...
Flash Flood — Aug 21, 2016
Convection formed over the northern Mexican mountains during the afternoon and evening of August 20 beneath an upper level trough over the southern plains. This convection eventually formed into a mesoscale convective system as a low level jet developed overnight. The MCS produced heavy rain as it moved into a tropical airmass over South Central Texas. The MCS dissipated, and then convection re...
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 Wilson 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 Wilson 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.