Going Blue

Expedition weather forecasts via satellite

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Sultana from Denali, May 2026

Going Blue is an expedition weather app designed specifically for satellite messengers. It was built for a Denali ski expedition with one goal: to get you all the weather information you would have at home, wherever you are. Going Blue uses a custom codec to pack hundreds of forecast data points into a single message that can be sent over SMS, Garmin inReach, ZOLEO, or iPhone satellite messaging.

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How it works

Build a forecast request

Choose the location, weather model, and variables that you care about.

The request builder: Denali pinned on the map, the weather model selector, and the
      extra variable toggles

Send the request

Send the request via the internet, SMS, Garmin inReach, ZOLEO, or iPhone satellite messaging.

The device selector with SMS chosen and the Send SMS button, the request in the
      Messages compose field, and the Copy menu on the encoded reply

View the forecast

Paste the forecast response into the app to visualize the forecast.

The Paste Forecast button and the decoded Denali meteogram

Features