# Third-party notices

## Natural Earth

The derived geometry in `assets/countries.json` comes from Natural Earth
v5.1.2, 1:110m Admin 0 Countries with boundary lakes.

Natural Earth data is in the public domain. See
<https://www.naturalearthdata.com/about/terms-of-use/>.

## NOAA and National Hurricane Center data

Hurricane Tracker retrieves public weather products from the National Oceanic and
Atmospheric Administration's National Hurricane Center. NOAA and NHC names are
used only to identify the source. They do not imply endorsement of Hurricane Tracker.

NHC notes that its GIS feeds are experimental conveniences, may not always be
available or timely, and must not be relied upon for life-threatening
decisions. See <https://www.nhc.noaa.gov/gis/>.

## Open-Meteo and GeoNames place data

Optional typed location search uses Open-Meteo's Geocoding API. Open-Meteo's
location results are based on GeoNames data. See
<https://open-meteo.com/en/docs/geocoding-api> and
<https://www.geonames.org/>.

## OpenStreetMap and Nominatim place data

Optional naming of points selected directly on the map uses the public
Nominatim reverse-geocoding service. Place data is © OpenStreetMap contributors
and available under the Open Data Commons Open Database License (ODbL).
See <https://www.openstreetmap.org/copyright> and
<https://operations.osmfoundation.org/policies/nominatim/>.