FEMA flood zones · Texas

Andrews County, Texas Flood Zone Map

1 federal flood & hurricane disasters

Less than 1% of Andrews 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 Andrews County, Texas. 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 Andrews County floods

Flash flooding from severe thunderstorms and slow-moving weather systems dominates the flood profile of Andrews County, TX, with NOAA records detailing 46 flash flood events over the last 30 years.

Recent weather patterns illustrate how these events unfold in the region. On September 2, 2024, a slow-moving upper-level low pressure system and a stationary frontal boundary generated widespread showers and thunderstorms, bringing repeated rounds of heavy rainfall within a tropical airmass that caused significant flash flooding. Earlier, on June 2, 2023, an upper-low combined with rich moisture and instability to produce widespread thunderstorms across the Permian Basin, followed by another similar event on May 19, 2023, driven by a western US trough and slow-moving high-precipitation supercells that produced flash flooding alongside severe winds and hail.

Homeowners, real estate agents, and journalists monitoring property risks in the area should pay the closest attention to locations susceptible to intense, localized downpours and stormwater accumulation during these severe convective storms.

Summary written from NOAA storm reports and NFIP claims for this county. Not a prediction.

In their words

10 NOAA storm reports from Andrews County describe what happened, in the words of the forecasters who covered it. Read the Texas flood stories →

Federal disasters

15 federal disaster declarations since 1998, 1 of them floods, coastal storms or hurricanes.

DisasterBegan
Severe Winter StormFeb 11, 2021
Severe Winter StormsFeb 11, 2021
WildfiresApr 6, 2011
Parker FireApr 10, 2008
WildfiresMar 14, 2008
Chevron FireFeb 8, 2008
Extreme Wildfire ThreatNov 27, 2005
Hurricane RitaSep 23, 2005

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

Recorded flood events

46 since 1996: 46 flash floods.

EventDateDamage
Flash FloodSep 2, 2024—
Flash FloodMay 19, 2023—
Flash FloodJun 7, 2023—
Flash FloodJun 2, 2023$50,000
Flash FloodJun 2, 2023—
Flash FloodSep 21, 2019$50,000
Flash FloodAug 29, 2016$1,000
Flash FloodOct 22, 2015$500

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

From the storm reports

Flash Flood · Sep 2, 2024. A slow-moving upper-level low pressure over a stationary frontal boundary helped to generate widespread showers and thunderstorms across the region. Repeated rounds of moderate to heavy rainfall within a tropical airmass caused significant flash flooding across many Permian Basin and Southeast New Mexico areas.

Flash Flood · May 19, 2023. A large western US trough brought continued lee troughing to the Great Plains. This active pattern provided ample wind shear and instability for severe weather. Numerous long-track supercells developed during the afternoon and evening across a large portion of west Texas and southeast New Mexico. These thunderstorms produced numerous large hail, some very large, and severe wind reports. Additionally, flash floodin…

Flash Flood · Jun 7, 2023. A weak disturbance within the sub-tropical jet stream and a stationary front across the Permian Basin aided in the development of numerous afternoon and evening thunderstorms. These thunderstorms produced large hail, severe winds, and flash flooding across portions of the region.

Flash Flood · Jun 2, 2023. A large closed upper-low was located over the northern Great Plains with a shortwave trough to the south within the sub-tropical jet stream. These features helped bring rich moisture and instability into the region. Widespread strong to severe thunderstorms developed across much of the region. The Permian Basin and the Stockton Plateau were the two main areas of note. Severe winds, large hail. and a brief tornado…

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 Andrews County

If a building in Andrews 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.