BowEcho

Fahrenheit Research·FahrenheitResearch.BowEcho

Fast, free, native NEXRAD Level II radar viewer — live storm-scale radar in a single small download

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.

winget install --id FahrenheitResearch.BowEcho --exact --source winget

Latest 0.34.2·July 16, 2026

Release Notes

BowEcho v0.34.2 This release adds a full sounding-correction workflow, faster warning inspection, broader European alert coverage, and substantial radar, satellite, WoFS, and placefile improvements. Sounding correction lab

  • Added a separate, resizable, non-destructive correction lab for editable model soundings.
  • Correct thermal, moisture, and wind profiles independently, with variable-specific depth, domain, and blend shapes, including draggable custom profiles.
  • Added visible QC for supersaturation, dry instability, invalid states, and wind-seam kinks, plus an optional reversible dry convective adjustment.
  • Sounding plots, parcels, hodographs, and diagnostics update immediately from the corrected profile; Reset original restores the untouched source.
  • Save fingerprint-bound projects, export CSV or SPC/SHARPpy RAW, import RAW soundings, and run deterministic batch experiments over up to four correction fields. Warnings and Alerts
  • Clicking warning polygons now opens compact geo-anchored cards with every warning at that point, including wind, hail, tornado/damage tags, expiry, issuing office, dismiss controls, and links to full details.
  • Added automatic warning-source selection: NWS for operational US radars and official MeteoAlarm Atom/CAP feeds for supported European radar countries, with manual source and country selection available.
  • MeteoAlarm warnings include severity-aware accents, full details, and official CAP links. The anonymous public feeds do not provide polygon geometry, so BowEcho presents them honestly as list/detail warnings without inventing map placement; historical timeline sync remains NWS-only.
  • SPC mesoscale-discussion map clicks now open Alerts directly, and official MD graphics can be opened in a larger scrollable viewer with Fit, 100%, and 10-400% zoom controls. Satellite and WoFS
  • Fixed cached GOES RGB composites bypassing the selected spacecraft or sector, which could produce convincing previews but empty map coverage.
  • Fixed inverse-grid indexing on very wide and antimeridian-crossing satellite domains so coverage remains reachable across the full frame.
  • Added Center on satellite coverage and clearer messages distinguishing an out-of-sector view from a transparent visible-light frame at night.
  • WoFS drapes now continue loading and syncing when the WoFS window is closed.
  • Added accurate ready/loading/unavailable/error states so stale or unvalidated frames are never labeled active.
  • Added a high-visibility mode that lifts low-alpha WoFS guidance without recoloring, repositioning, or filling transparent pixels. Downloaded placefiles
  • Added multi-file import for downloaded local placefiles, including .txt, uncommon extensions, and extensionless files.
  • Local sources persist in the Layers list and support the same enable, refresh, reload, and remove workflow as URL feeds.
  • Relative local sprite-sheet references resolve beside the placefile, with clearer load status and generation-safe refresh handling. Radar products and quality of life
  • Replaced abbreviation-heavy product chips with a categorized, full-name product browser covering base moments, velocity, volume/hail, dual-pol, precipitation, quality, texture, and simulation fields.
  • More products exposes the extended catalog; advanced sweep products compute lazily when selected, while KDP remains automatic when its source metadata are trustworthy.
  • Added one-click editing for the active radar product's color table under Custom > Appearance.
  • Added a sidebar collapse handle, direct Undo for workflow presets, and native-resolution sounding-board image capture.
  • Moved loop frame-count selection beside Load Loop for a clearer loading workflow. DWD radar
  • DWD now prefers quality-controlled polarimetric reflectivity, falls back through simpler filtered and raw variants when necessary, and enables available ZDR, RhoHV, and PhiDP moments by default.
  • Missing optional dual-pol products no longer prevent the base reflectivity/velocity volume from loading. Source notice European warnings are provided by EUMETNET members through the official MeteoAlarm public feeds and are used under CC BY 4.0.

Installer type: portable

x6449EE17B19AC9A06A8CBDE60B3EC0714BF413657568CAB521A111540BA4C79FD9
arm641B71302EB898AA2D78A0F0D95D37DD67BAB2E8EC6D9715BCFCF446B729B4ADA8

Details

Homepage
https://github.com/FahrenheitResearch/bowecho
License
MIT OR Apache-2.0
Publisher
Fahrenheit Research
Support
https://github.com/FahrenheitResearch/bowecho/issues
Copyright
Copyright © Fahrenheit Research. MIT OR Apache-2.0.
Moniker
bowecho