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.