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nickoteeno

2 karma · joined May 4, 2026

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nickoteeno··on Show HN: Ranking weather models by how their forecasts turned out
Fair point, what would you recommend instead of RSME (for temp and wind as rain uses F1 anyways)? I query the seamless variant yes, which for longer lead times replaces with ECMWF IFS. I'll take a good look at that. Which would you normally say is the best for your area?
nickoteeno··on Show HN: Ranking weather models by how their forecasts turned out
Adding a link would be fair indeed! On the zooming in, you're right, I thought I did that, and I did for all but temperature, which is default, I'll change that right away
nickoteeno··on Show HN: Ranking weather models by how their forecasts turned out
Thanks! I haven't heard about weather polymarket betting, sounds fun. I will have a look at slickfast, do I understand correctly it's an mcp?
nickoteeno··on Show HN: Weather app to show actual performance of weather models
Yeah when there's been very little rain, it's just hit or miss ;) Does it still look like that when you increase the Score tab lookback window?

I will add some minimum amount of rain though, otherwise the score feels weird indeed

nickoteeno··on Show HN: Weather app to show actual performance of weather models
Got tired of forecasts being wrong and having no way to check. So I built an app that overlays what models predicted days ago vs. what actually happened, so you can literally see the accuracy on a timeline.

You can compare all open-meteo models (such as IFS, AIFS, AIGFS...) side by side. Choose how many days back you want to check (it uses open-meteo's Previous Model Runs API) and the app shows the previous prediction as a "ghost line" against observed data. There's also a scoring system that calculates an accuracy by temp, wind, rain and sun hours.

Features: - Compares previous predictions vs. observed data - Built-in scoring system that calculates accuracy by temp, wind, rain, and sun hours - Separate storm accuracy page to choose the best model for predicting storms. - Free and no ads!

Would love to hear what fellow weather nerds think. Any feedback is welcome!

If you're interested: iOS: https://apps.apple.com/nl/app/verisky/id6759251875 Android: https://play.google.com/store/apps/details?id=com.verisky.ap...