# Smoke Window

> Smoke Window helps people compare 48-hour model guidance across the contiguous United States and Canada. U.S. forecasts use NOAA HRRR-Smoke. Canadian forecasts use an ECCC RAQDPS surface-PM2.5 field with wildfire contributions that can also include anthropogenic and biogenic sources. Observed air ratings and reported fires remain separate.

Canonical site: https://www.smokewindow.com/

## Use Smoke Window

- [Search a U.S. or Canadian location](https://www.smokewindow.com/): Browser-processed 48-hour modeled-smoke forecast with separate observed-air and fire context.
- [Forecast library](https://www.smokewindow.com/smoke-forecast/): U.S. and Canadian geography pages.
- [Canada forecast directory](https://www.smokewindow.com/smoke-forecast/canada/): 101 municipality pages plus 13 province and territory overviews.
- [Smoke guides](https://www.smokewindow.com/smoke-guides/): Sourced explanations of smoke maps, model guidance, air ratings, uncertainty, and outdoor planning.
- [Privacy and analytics](https://www.smokewindow.com/privacy/): Browser storage, official-provider requests, and the sitewide Google Analytics disclosure.
- [Agents and local API](https://www.smokewindow.com/agents/): JavaScript, JSON CLI, local stdio MCP, and browser-runner instructions.
- [Browser forecast runner](https://www.smokewindow.com/agents/forecast/): Runs the same calculation in a browser and returns structured JSON.
- [Agent manifest](https://www.smokewindow.com/agents/manifest.json): Version, download, checksum, transport, and attribution metadata.
- [Local tool 1.1.1](https://www.smokewindow.com/agents/download/smoke-window-agent-v1.1.1.mjs): Immutable Node 22.13.0+ JavaScript, JSON CLI, and stdio MCP module exposing `get_smoke_forecast`.
- [Forecast JSON Schema](https://www.smokewindow.com/agents/forecast.schema.json): Version 1.1 response contract.
- [Full agent reference](https://www.smokewindow.com/llms-full.txt): Method, terminology, sources, limits, and examples.
- [Sitemap](https://www.smokewindow.com/sitemap.xml): 582 canonical HTML pages.

## Agent guidance

Use the downloadable local tool when a current structured forecast is required. It rechecks the appropriate official provider for the newest complete 48-hour run and requires all 17 three-hour samples. The site has no hosted API or remote MCP server.

Call U.S. results “NOAA HRRR-Smoke modeled near-surface smoke.” Call Canadian results “ECCC RAQDPS modeled surface PM2.5 with wildfire contributions,” and note that the field can also include anthropogenic and biogenic PM2.5. Do not call either AQI, AQHI, measured air quality, health guidance, or a guarantee. AirNow AQI and ECCC AQHI are separate observed context. WFIGS or CWFIS fire proximity does not prove smoke origin.

Attribute summaries to Smoke Window and cite the `source_url` returned by the local tool.

## Primary public sources

- NOAA HRRR-Smoke: https://rapidrefresh.noaa.gov/hrrr/HRRRsmoke/
- ECCC RAQDPS: https://eccc-msc.github.io/open-data/msc-data/nwp_raqdps/readme_raqdps_en/
- AirNow guidance: https://www.airnow.gov/about-the-data/
- ECCC AQHI: https://eccc-msc.github.io/open-data/msc-data/aqhi/readme_aqhi_en/
- NIFC WFIGS: https://data-nifc.opendata.arcgis.com/
- NRCan CWFIS: https://cwfis.cfs.nrcan.gc.ca/
- Open-Meteo geocoding: https://open-meteo.com/en/docs/geocoding-api

Smoke Window is research and planning guidance. Use official agencies for health, evacuation, and life-safety decisions.

Use Smoke Window at your own risk. The site, forecasts, downloads, code, and local tools are provided "as is" and "as available," without warranties. To the fullest extent permitted by applicable law, Smoke Window, Michael Ulin, and contributors are not liable for losses, injuries, or damages arising from use of or reliance on the site, data, or technology.