Enter any address in Gregg County, Texas to see its FEMA flood zone
Flash flooding from thunderstorms is the dominant flood character in Gregg County. Over the last 30 years, NOAA Storm Events data shows 88 flash flood events, compared to 15 general flood events and 1 tropical storm. Recent examples include flash floods occurring in May 2025, driven by frontal boundaries and unstable air masses, and in August 2025, associated with a cool front and strong instability.
National Flood Insurance Program (NFIP) claims data indicates that properties in Zone A have experienced the most claims, with an average payout of $24,854 and an average water depth of 3.9 feet. Properties in Zone X also show a significant number of claims, with an average payout of $10,149 and an average water depth of 4.8 feet. Homeowners in Zone A, Zone X, and particularly those without a Base Flood Elevation (BFE) should pay close attention to flood risk.
Summary generated from NOAA storm narratives and NFIP claim data for this county. Not predictive.
60 NOAA storm reports from this county describe what happened, in the words of the meteorologists who were there.
Gregg County, Texas has recorded 104 flood-related events since 1996 according to NOAA's Storm Events Database, including 88 flash floods and 15 river or area floods. The county has received 23 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 (1966–2024)
Source: OpenFEMA Disaster Declarations Summaries.
| Declaration | Type | Date |
|---|---|---|
| Hurricane Beryl | Hurricane | Jul 5, 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 |
| Severe Storms, Tornadoes, And Flooding | Flood | Mar 7, 2016 |
| Wildfires | Fire | Aug 30, 2011 |
| Hurricane Ike | Hurricane | Sep 7, 2008 |
| Extreme Wildfire Threat | Fire | Nov 27, 2005 |
NOAA Storm Events Database (1996–2025)
Source: NOAA National Weather Service Storm Events Database.
| Type | Date | Damage |
|---|---|---|
| Flash Flood | Aug 29, 2025 | 0.00K |
| Flash Flood | May 26, 2025 | 0.00K |
| Flash Flood | May 6, 2025 | 0.00K |
| Flash Flood | Aug 1, 2025 | 0.00K |
| Flash Flood | May 30, 2024 | 0.00K |
| Flood | Jun 3, 2024 | 0.00K |
| Flash Flood | Aug 21, 2022 | 0.00K |
| Flood | May 5, 2022 | 0.00K |
| Flash Flood | Jul 19, 2021 | 0.00K |
| Flood | Mar 26, 2020 | 0.00K |
Flash Flood — Aug 29, 2025
Significant banding of heavy showers and thunderstorms with cell-training occurred on the morning of August 29th across East Texas and North Louisiana, posing the threat of flash flooding. A gradual increase in warm air advection and isentropic ascent was noted on the north side of a quasi-stationary frontal boundary and within a very moist and moderately unstable air mass. MUCAPE values ranged...
Flash Flood — May 26, 2025
A weak surface frontal boundary drifted south to near the I-20 corridor of East Texas and North Louisiana during the early morning hours of May 26th, with a warm and moist air mass along and south of the front yielding adequate instability along and south of the front. While scattered strong to severe thunderstorms over portions of extreme Northeast Texas, Southeast Oklahoma, and Southwest Arka...
Flash Flood — May 6, 2025
An upper level low pressure system over the Desert Southwest shifted east through the Intermountain West on May 6th, inducing surface low development over West Texas. This also resulted in a tightening pressure gradient across the Southern Plains and Lower Mississippi Valley, with increased southerly low level winds allowing for a warm front to shift north to the I-20 corridor of East Texas and...
Flash Flood — Aug 1, 2025
A weak cool front drifted south through East Texas, Southwest Arkansas, and extreme Northern Louisiana during the afternoon of August 1st, ahead of an upper level trough of low pressure that shifted east into the Four State Region. Large scale forcing along the front coupled with strong instability that developed in the moist air mass in place yielded scattered to numerous showers and thunderst...
Flash Flood — May 30, 2024
Remnants of a pre-dawn mesoscale convective system (MCS) that developed over the southern High Plains propagated downstream into the Ark-La-Tex region during the afternoon hours on May 30th. Diurnal heating and weak convective inhibition allowed for renewed development of severe thunderstorms along the leading edge of this long-lived MCS. Surface temperatures warmed into the 80s ahead of this c...
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 Gregg 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 Gregg 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.