Enter any address in San Augustine County, Texas to see its FEMA flood zone
Flash flooding from heavy rainfall events dominates the flood character of San Augustine County. Recent examples include events in January 2024 and July 2024, where rainfall associated with weather systems led to significant flooding. Over the past 30 years, NOAA Storm Events data indicates 22 flash flood events occurred in the county, resulting in two fatalities.
FEMA data shows that flood insurance claims have been filed in both Zone A and Zone X areas. Claims in Zone A, which typically experiences higher flood risk, averaged $14,811 with an average water depth of 1.5 feet. Claims in Zone X, considered moderate to low risk, averaged $1,130 with an average water depth of 0.5 feet.
Residents in areas designated as Zone A, as well as those in Zone X who have experienced flooding, should pay particular attention to flood risk. Homeowners without a documented Base Flood Elevation (BFE) or those located near potential heavy rainfall runoff areas are advised to be aware of their flood risk.
Summary generated from NOAA storm narratives and NFIP claim data for this county. Not predictive.
17 NOAA storm reports from this county describe what happened, in the words of the meteorologists who were there.
San Augustine County, Texas has recorded 26 flood-related events since 1996 according to NOAA's Storm Events Database, including 22 flash floods. The county has received 26 federal disaster declarations, 4 of which involved flooding or coastal storms. Enter any address above to check its FEMA flood zone designation.
FEMA Disaster Declarations (1989–2024)
Source: OpenFEMA Disaster Declarations Summaries.
| Declaration | Type | Date |
|---|---|---|
| Hurricane Beryl | Hurricane | Jul 5, 2024 |
| Severe Storms, Straight-line Winds, Tornadoes, And Flooding | Flood | Apr 26, 2024 |
| Severe Winter Storm | Severe Ice Storm | Feb 11, 2021 |
| Severe Winter Storms | Severe Ice Storm | Feb 11, 2021 |
| Tropical Storms Marco And Laura | Hurricane | Aug 23, 2020 |
| Covid-19 | Biological | Jan 20, 2020 |
| Covid-19 Pandemic | Biological | Jan 20, 2020 |
| Hurricane Harvey | Hurricane | Aug 23, 2017 |
| Severe Storms, Tornadoes, And Flooding | Flood | Mar 7, 2016 |
| Severe Storms, Tornadoes, Straight-line Winds And Flooding | Severe Storm | May 4, 2015 |
NOAA Storm Events Database (1996–2025)
Source: NOAA National Weather Service Storm Events Database.
| Type | Date | Damage |
|---|---|---|
| Flash Flood | Jul 26, 2024 | 0.00K |
| Flash Flood | Jan 23, 2024 | 0.00K |
| Flash Flood | Jan 9, 2022 | 0.00K |
| Flash Flood | Apr 30, 2021 | 0.00K |
| Flash Flood | May 9, 2021 | 0.00K |
| Tropical Storm | Aug 27, 2020 | 0.00K |
| Flash Flood | May 19, 2019 | 0.00K |
| Flash Flood | Dec 8, 2018 | 0.00K |
| Flash Flood | Aug 30, 2017 | 0.00K |
| Tropical Storm | Aug 30, 2017 | 0.00K |
Flash Flood — Jul 26, 2024
A broad complex of showers and thunderstorms with associated heavy rainfall developed across areas of Deep East Texas and West Central Louisiana by mid to late morning on July 26th. This occurred within an elongated axis of upper-level energy observed along much of the middle and upper Texas coast and up across interior areas of East Texas around the eastern flank of a broader mid-level trough ...
Flash Flood — Jan 23, 2024
A deep upper-level trough axis became entrenched across the western U.S. early on January 23rd into the 24th, enhancing a deep southwesterly flow pattern across the Middle Red River Valley. Multiple disturbances aloft ejected northeast within the southwesterly flow and combined with a stalled surface frontal boundary to provide a nearly ideal environment for heavy rainfall across the Ark-La-Tex...
Flash Flood — Jan 9, 2022
A strong upper level low pressure system tracked east across the Red River Valley of Southern Oklahoma and North Texas during the afternoon of January 8th, before shifting across Northeast Texas into Southwest Arkansas during the early morning hours of the 9th. Ahead of this low, strong southerly low level winds rapidly transported low level moisture back north across the region, with large sca...
Flash Flood — Apr 30, 2021
A cluster of showers and thunderstorms developed during the late evening hours of April 29th over Deep East Texas, near and just south of a weak cold front that drifted south across East Texas and North-Central Louisiana. These storms developed in a very moist air mass, near an inverted low level trough that extended from Deep East Texas into West-Central Louisiana. Additional forcing aloft was...
Flash Flood — May 9, 2021
Warm, humid, and unstable conditions were in place across the Four State Region on May 9th, ahead of a cold front and attendant shortwave trough that traversed the Southern Plains during the afternoon. Large scale forcing ahead of the trough increased during the afternoon, with scattered showers and thunderstorms developing near and ahead of the front across Southwest Arkansas, North Louisiana,...
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 San Augustine 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 San Augustine 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.