Whether or Knot LLC, d/b/a AerisWeather, is a global weather RESTful API and tile mapping layer provider established by Paul Douglas, David Hubbard, Michael Vaughan, and Craig Mataczynski.
Paul Douglas first had the idea for outsourced weather production in 1979 but shelved it due to the expected high cost, mostly for satellite feeds ($5 to $7 million a month).
After being laid off from WCCO-TV in 2008, Douglas started WeatherNation, as broadband's growing availability decreased the costs.
Douglas was CEO and Todd Frostad, formerly of Digital River and a commercial real estate businessman, was president and co-owner.
[8] In June 2010, the company with Insight Communications launched the CN2 cable channel to serve the state of Kentucky, providing the weather.
In early April 2020, AerisWeather refreshed PWSweather.com, a site that allows personal weather station users to collect and share data.