dataset · USA

NEXRAD on AWS

Real-time and archival data from the Next Generation Weather Radar (NEXRAD) network. #### Update The NEXRAD Level II archive data is moving to a new bucket: `unidata-nexrad-level2` and SNS topic: `arn:aws:sns:us-east-1:684042711724:NewNEXRADLevel2Archive`. The old bucket and SNS topic are now deprecated and will no longer be available starting September 1, 2025.

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Source details

Licence: NOAA data disseminated through NODD are open to the public and can be used as desired.<br/> <br/>NOAA makes data openly available to ensure maximum use of our data, and to spur and encourage explorati

Evidence quality: 32.5

Listed in aws-odr public catalogue API on 2026-10-16; relevance/value screened (haiku).

Metadata checked: 2026-10-14T13:20:00.000Z

What's in it

Data offered docs-verified: NEXRAD Level II archive · NEXRAD Level II real-time · NEXRAD Level III real-time select data
Coverage llm-inferred: USA
Update frequency docs-verified: As soon as available (new Level II data added on release)
Formats llm-inferred: NEXRAD Level II binary · NEXRAD Level III binary
Access docs-verified: Free/open; no API key or AWS account needed (anonymous S3 access). NOAA open data licence; attribution requested for unaltered data, no implied endorsement.

Useful for

Use cases llm-inferred: Reconstructing US storm rainfall and radar reflectivity for comparative event analysis · Radar-derived rainfall time series for hydrological model calibration on US projects · Severe weather reconstruction for loss assessment on US sites
Audience llm-inferred: hydrologists · flood consultants · GIS analysts · meteorologists

Limitations

Constraints docs-verified: US radar network only; no UK coverage · Old bucket and SNS topic deprecated and no longer available; use unidata-nexrad-level2 bucket · Level III limited to real-time select data

Evidence

Check upstream coverage, uncertainty and licence before use. Station observations are not forecasts or design levels.