BowEcho — A fast, free, native NEXRAD Level II radar viewer. Live super-resolution base data, dealiased velocity, dual-pol, derived severe-weather products, synced multi-pane, and vertical cross-sections — in a single small download. BowEcho decodes raw NEXRAD Level II data straight from the public AWS archive and live chunk feed (no account, no API key) and renders it with a fast CPU rasterizer that preserves the native super-resolution pixel pattern. It is built in Rust for speed: products switch instantly, panning stays fluid, and first pixels from a fresh volume arrive in well under a second on typical connections.
What's new in 0.35.0
BowEcho v0.35.0 BowEcho v0.35.0 delivers native-resolution satellite imagery, much faster progressive map loading, and the newest Rusty Weather model and data support.
Satellite - Full Disk imagery now uses retained native-source tiles as you zoom, both locally and through compatible rw-server satellite services. Map detail is no longer limited to the compact loop preview. - Satellite tiles appear progressively and concurrently. The center of the view arrives first, and the previous georeferenced image remains visible while a sharper zoom loads instead of disappearing or collapsing into a rectangle. - Live and Load latest prioritize the newest complete scan. Older history loads in the background only when a loop is requested. - Starting a live follow exposes its retained frames on the radar map immediately, while the Full Disk action centers and fits the complete disk. - Already-retained source scans are not downloaded again. Corrected or republished scans at the same time are detected and refreshed. - Multi-channel products require matching source scans, preventing adjacent or incomplete channel times from being combined.
Radar and map performance - Live Level-II sweeps reveal newly arriving radial chunks smoothly over the previous completed tilt instead of waiting for an entire sweep. - Warning-heavy regional maps use bounded fill work and geometry caching; outlines remain responsive during interaction and fills return when the map settles. - Repeated wheel and trackpad zooms cancel obsolete warning, model, and satellite renders instead of allowing old work to delay the current view.
Models and inspectors - Hidden model layers are now dormant: they no longer feed stale inspector values, render invisibly, or keep regional work running in the background. - Turning Models off cancels outstanding map, lookup-table, and upper-air work. - Regional model rasters use bounded detail and latest-view-wins cancellation for more responsive panning and zooming.
AROME-France - Adds Météo-France AROME-France downloads for the 0.01-degree surface lane and the 0.025-degree surface and pressure-level lane. - Both lanes expose eight daily cycles through forecast hour 51, with suitable default surface and sounding profiles. - Latest-run availability requires every package needed by the selected profile and forecast hour, so partially published runs are not shown as ready. …
Yes. BowEcho is free and open-source software released under the MIT OR Apache-2.0 license.
What is the latest version of BowEcho?
The latest version is 0.35.0, released on Aug 28, 2026.
Is it safe to download BowEcho?
The download button links to the official installer published on github.com, the same file Windows Package Manager installs. You can verify the downloaded file by comparing its SHA-256 checksum with 28438d68522713897e4282de7301ab31e464d47dcc923906aae74c88e94f868d.
Which Windows versions does BowEcho support?
BowEcho runs on Windows and is available for 64-bit (x64), ARM64 systems.
How do I uninstall BowEcho?
Open Settings › Apps › Installed apps, find BowEcho and select Uninstall. From the command line, run winget uninstall --id=FahrenheitResearch.BowEcho -e.
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