Earth Data School
About
Full catalog/tx-flood-500-yr-recurrence
tx-flood-500-yr-recurrence·dataset

Texas Flood Zone: 500-Year Flood Risk Areas (2025)

Texas Water Development Board Cursory Floodplain Dataset (500 Year Recurrence)- 2025 Texas Flood AOI
hydrosphere NASA VEDA COG
In plain English

What it measures. A floodplain map showing where flooding is rare, expected on average only about once every 500 years, across the area affected by the 2025 Texas flood.

How it's made. Drawn from the Texas Water Development Board's cursory floodplain modeling for the region.

How & where you'd use it. Shows the broadest flood-prone extent, useful for understanding worst-case flooding.

What's measured

flood500recurrence

Coverage & cadence

  • Time span2021-12-31 → 2021-12-31
  • Spatial extent-100, 29, -99, 31
  • FormatsCOG

What you can do with it

  • Follow rainfall, floods and surface-water extent
  • Track soil moisture and the onset of drought
  • Monitor lakes, rivers and groundwater storage
Official description

500 Year Flood recurrence probability frequency over the 2025 Texas Flood area of interest.

Get the data

veda_access.py
# NASA VEDA — open STAC API, anonymous (cloud-optimized GeoTIFFs)
from pystac_client import Client

cat = Client.open("https://openveda.cloud/api/stac")
col = cat.get_collection("tx-flood-500-yr-recurrence")
items = list(col.get_items())          # browse the analysis-ready COGs
# open an asset with rioxarray:
# import rioxarray; da = rioxarray.open_rasterio(items[0].assets["cog_default"].href)
NASA VEDA is an open STAC catalog — browse and stream the cloud-optimized GeoTIFFs anonymously (no login).