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Dan Slagen
By Dan Slagen
Dan Slagen
Dan Slagen
Currently CMO at Tomorrow.io, Dan Slagen is a 4 time start-up executive specializing in scaling global go-to-market functions from early stage to $100M+ in ARR. With experience in both B2B and B2C at companies such as HubSpot and Wayfair, Dan has built teams across marketing, growth, sales, customer success, business development, and also founded and sold his own video tech start-up. A frequent contributor and advisor to the start-up community, Dan has spoken at more than 50 conferences and has been featured in The New York Times, The Wall Street Journal, Forbes, CNBC, TechCrunch, and Bloomberg TV amongst others. Above all else, Dan believes in creativity, drive, and a people-first mentality.
Aug 24, 2023· 3 min, 1 sec

Weather Satellite Constellation Sends First Image as Tomorrow.io Expands

This article was originally published in Axios in August 2023

new weather satellite constellation has sent back its first images.

Why it matters: Climate intelligence company Tomorrow.io is aiming to drastically expand the data available over the world’s data gaps, including the oceans and many developing countries.

  • Tomorrow.io plans to use the satellite constellation, which now numbers two but may total more than 30, to improve its weather forecast models, and help other countries improve their warning systems.
  • The units are the first private-sector satellite-based weather radars to be deployed. Until now, the only orbiting radars able to scan clouds to see the precipitation within them, have been large and expensive spacecraft developed by NASA and JAXA (Japan’s space agency).



The big picture: Currently, meteorologists have little data about the inner workings of most storms over the ocean, and in many developing countries that don’t have modern weather observation and warning systems.

  • The company is betting that satellites that can peer within the clouds to detect precipitation rates, cloud structure and other parameters have the potential to drastically improve weather forecasts.


What they’re saying: “In an ever-changing climate, having the right information is not just an advantage today, it’s a necessity,” Itai Zlotnik, a co-founder and chief customer officer at Tomorrow.io, told Axios in an interview.

  • “We’re doing an MRI scan through the storm,” said Dan Slagen, Tomorrow.io’s CMO, in an interview.


Zoom in: The six-year-old Boston-based company specializes in developing hyperlocal weather and climate decision-making tools for clients such as JetBlue Airlines and Uber. It may seem like an unlikely player in the high risk, uncertain reward business of building, deploying and operating weather satellites.

  • The company has about 50 people working on the project now, said John Springmann, a space industry veteran who leads the company’s satellite development.
  • He says the network is going to “change the paradigm” of weather forecasting and position the company to be a vertically integrated weather player, owning and operating its observing network, which feeds data into its proprietary computer models that are used to deliver insights to clients.


Between the lines: Tomorrow.io is working with federal agencies, including NASA and NOAA, to be a data provider.

  • Through its nonprofit arm, it is also working with the World Meteorological Organization, part of an initiative to dramatically expand the number of countries that have access to sophisticated early warning systems for extreme weather and climate events.


Be smart: The satellites’ usefulness can only be fully evaluated once they are fully deployed and integrated into Tomorrow.io’s global forecast models, and potentially, models from U.S. and European governments.


Yes, but: Any company that is aggressively breaking new ground, as Tomorrow.io is, has to overcome some degree of skepticism about its capabilities. It still has significant challenges to overcome, including piping in the satellite data in a way that improves forecast accuracy.


What’s next: While the satellites are a core focus of the firm, rapid advances in artificial intelligence is also pushing its scientists to innovate.

  • According to Luke Peffers, chief scientific officer at Tomorrow.io, its models already use AI in its physics-based weather models to speed them up, and help translate data into useful insights for customers.
  • He is not sold on companies trying to replace physics-based models with AI solutions, however, calling them “toy models.” That may change in the next few years as they demonstrated their capabilities, though, he noted.
  • Tomorrow.io has a unique opportunity with the satellites, however, since machine learning can be used to train its models on its own data.

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