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Who built this app?

Neil Charles, an average weekend warrior PG pilot who likes building techy stuff. I mostly fly in the Pennines, or more accurately, I mostly look after my kids, muck about building apps and occasionally fly in the Pennines.

You can contact me here.

How does the app work?

I built the Wind at Altitude app to make it easy to see wind speed and direction at the altitudes where paragliders mostly fly. The app uses data from Open Meteo and caches it for one hour. If the app's cache is older than an hour then it requests a new forecast from Open Meteo (which may be unchanged).

The Wind at Altitude app is designed primarily to avoid pilots being surprised by unexpectedly strong winds and wind direction changes above take-off altitude because those can be dangerous and can be difficult see in a straightforward way using other weather forecasting sites.

Can you add more data?

Maybe but not if it would clutter the charts and risk confusing people. If you want incredibly rich data for XC planning, RASP is wonderful but Wind at Altitude is designed to sit between simple ground-level tourist forecasts and RASP to help you decide whether it will be flyable.

Can I switch to mph?

Yes. Look for the settings button on the right hand side and you can change a few settings there, including measurement units and calibrating the colour scale on the chart.

Can I make the app remember my settings?

When you change settings they're stored in the page URL. If you set it up the way you like it and then create a bookmark, next time you visit the bookmark, the site will be set to your choice of units and your favourite hill etc.