Data sources

Tiah is built on top of public and commercial data feeds. We credit each of them below, as required by their licenses.

Weather

Apple Weather — powered by Apple WeatherKit.
https://weatherkit.apple.com/legal-attribution.html
Apple and Apple Weather are trademarks of Apple Inc.
Open-Meteo — hourly severe-weather parameters (CAPE, shear, CIN, wind, dewpoint).
https://open-meteo.com/en/license
CC-BY 4.0

Alerts & forecasts

National Weather Service (NOAA).
https://api.weather.gov
NOAA Storm Prediction Center (SPC).
https://www.spc.noaa.gov
Iowa Environmental Mesonet — Local Storm Reports (LSR).
https://mesonet.agron.iastate.edu
Environment and Climate Change Canada.
https://weather.gc.ca

Other

USGS — earthquake feed.
https://earthquake.usgs.gov
EPA AirNow — air quality.
https://www.airnow.gov
iNaturalist — wildlife observations.
https://www.inaturalist.org

AI (only if you enable them)

Anthropic (Claude)
https://www.anthropic.com/legal
OpenAI
https://openai.com/policies
Google (Gemini)
https://policies.google.com

Weather data provided by Apple Weather

Tiah is informational only and is NOT a substitute for official warnings from the National Weather Service, Environment and Climate Change Canada, or 911.