Press
Press kit
Everything here is free to use in coverage of HookEcho, with credit to the project. No permission request needed.
Boilerplate
HookEcho is a free, open-source weather radar app for Windows, macOS, Linux, Android and the browser. It reads NEXRAD Level 2 volumes, MRMS, HRRR and the National Weather Service feeds directly from the public NOAA sources and renders them on the user's own machine — every radar tilt, dual-polarization products, storm-relative velocity, warnings and archive playback back to 1991 — with no account, no subscription, no ads and no telemetry. It is MIT licensed.
Fact sheet
- Name
- HookEcho (one word, capital H and E)
- What it is
- Desktop, mobile and browser weather radar viewer
- Platforms
- Windows, macOS, Linux, Android, any modern browser
- Price
- Free. No paid tier, no in-app purchase
- Licence
- MIT
- Data sources
- NOAA NEXRAD, MRMS, HRRR/NAM, National Weather Service API
- Coverage
- 152 NEXRAD sites, 44 TDWR terminal radars, Germany's DWD network
- Archive
- Back to 1991
Where the name comes from
A hook echo is the comma-shaped appendage on a supercell's radar signature, wrapped around the storm's rotating updraft. It was first documented in Illinois in 1953, and it has been the classic radar indicator of a possible tornado ever since — the thing a forecaster looks for first. The longer version.
Images
Linked from the repository at tag v0.12.0-beta.1. Right-click to save; hotlinking is fine too.
- App icon — PNG, 1024×1024
- Every tilt — Level 2 volume, all elevations
- Velocity — Storm-relative velocity, dealiased
- Warnings — Polygons, storm reports, spotters
- National mosaic — MRMS
- Model fields — HRRR with severe parameters
Contact
Questions, corrections and interview requests: GitHub Discussions, or open an issue.