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dataset · USA

NOAA MRMS - dynamical.org Icechunk Zarr

The NOAA Multi-Radar/Multi-Sensor System (MRMS) integrates data from multiple radars and radar networks, surface observations, numerical weather prediction (NWP) models, and climatology to generate seamless, high spatio-temporal resolution mosaics at low latency focused on hail, wind, tornado, quantitative precipitation estimations, convection, icing, and turbulence. These datasets have been translated to cloud-optimized Icechunk Zarr format by [dynamical.org](https://dynamical.org). - [NOAA MRM

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Source details

Licence: [CC BY 4.0](https://creativecommons.org/licenses/by/4.0/)

Evidence quality: 52.5

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
hourly precipitation analysis (NOAA MRMS CONUS analysis, hourly)
Coverage docs-verified
CONUS
Resolution docs-verified
hourly (temporal); spatial resolution not stated
Update frequency docs-verified
1 hour
Formats docs-verified
Icechunk Zarr
Access docs-verified
open anonymous S3 access, no AWS account required; licence CC BY 4.0

Useful for

Use cases llm-inferred
Hourly rainfall event reconstruction for a CONUS catchment, as a comparison case for UK flood-risk methods · Hourly precipitation time series as inputs for calibrating a hydrological model at a US site · Back-testing a drainage design against observed hourly rainfall at a US site
Audience llm-inferred
hydrologists · flood consultants · drainage engineers · GIS analysts · climate scientists

Limitations

Constraints llm-inferred
CONUS (USA) only; not usable for UK sites · Docs list only the hourly CONUS precipitation analysis; the broader MRMS products (hail, wind, tornado) in the description are not listed as offered · Spatial resolution and time span are not stated in the docs · Requires Zarr/Icechunk-capable tooling; not a plain GeoTIFF or CSV download · Translated by dynamical.org, not NOAA; no maintenance or continuity commitment is stated

Evidence

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