Alternatives
Products that do what Experiments with Weather Data does
I had been wanting to try experimenting with nowcasting since the death of Dark Sky and finally got around to it. This application essentially became a playground for me to experiment with various weather datasets and geospatial visualizations. Some interesting concepts that came from it: The nowcast is using pySTEPS optical flow under the hood: https://pysteps.readthedocs.io/en/latest/auto_examples/plot_.... This library is super cool. It bugged me that every radar visualization just gave you choppy snapshots in time, so I spent some time working on building a…
- 1
- 2AN
We just released a new weather website using all sorts of awesome web technologies. We use ModestMaps to show tiled, animated radar and satellite data, Raphael.js to show historical averages and record high/lows, and MapQuest's new Nominatim service sitting on top of OpenStreetMap to do location lookups. We're really proud of this site and would love to hear your feedback and to have try it out: http://preview.my-cast.com/
2011
- 3
- 4GA
I miss Dark Sky, so I built my own weather app. Here's how GrayCloud works: * Raincast: minute-by-minute rain prediction and accumulation tracking for your exact location * Forecasts: 10 day forecasts use multiple high resolution sources and correct for bias at your location. * Alerts: rain starting, stopping, severe weather, daily summary and more * Widgets: home and lock screen widgets * Multi-platform: apple watch and mac apps I use NOAA and ECMWF models for core weather data and a custom model to compute rain accumulation and the next 60 minute radar movements. I also offer Apple…
Jun 2026 · graycloud.app
- 5
I've been working on linecast, a free and open source collection of six terminal applications: weather, radar, sunshine, moon, tides, and maps. It's as if the Old Farmer's Almanac was built for Minitel. I made it because I'd been using the terminal a lot more over the past couple of years, I'm opinionated about weather forecast IA and design, and I liked the idea of making useful little terminal desk ornaments. The applications use ANSI color and Unicode braille characters rather than graphics. They reflow as the terminal is resized and derive their colors from your current terminal palette,…
14d ago · terminaltrove.com
- 6PT
This was posted before but I'm quite pleased to share a major update for https://oikolab.com. We now have available seven decades of hourly weather data starting from 1950 for any location in the world, thanks to the recent publication of ERA5 reanalysis data from European Centre for Medium-Range Weather Forecasts (ECMWF). ERA5 is gap-free, gridded dataset generated using data assimilation method (https://en.wikipedia.org/wiki/Data_assimilation), similar to NWP models but with the benefit of hindsight. As far as we're aware of, we're the first weather data…
2020
- 7NR
Hey folks! This is a project that I've been working in my free time for the past few months. It's a news aggregator that uses AI to select relevant articles and summarize them. The default sources are frameworks and libraries' updates, popular HN topics, and languages' subreddits threads that make past a certain threshold. You can run a local instance (needs an OpenAI key) and customize it with your own sources, and adjust the prompt as well. The resulting website can be browsed at https://dev-radar.com/ My next experiment will be with local news. I'm building some feeds with…
2023 · github.com
- 8IS
I created a little meteor application last night for idea sunday for some real time thought sharing http://thoughts.meteor.com/
2014
- 93G
Hello, I have worked on this side project for some months to visualize what's happening in the world on a daily basis. Would love to hear what you think of it !
2024 · w0rld2day.com
- 10WP
This was my recent weekend project, aimed at teaching me JavaScript, a bit of HTML5, and (mostly) WebGL. The orbital data are from NASA JPL. I was inspired in part by this Flash app: http://www.dynamicdiagrams.com/wp-content/uploads/2011/04/orrery_2011_bce.swf, but wanted to do something in 3D. Coming from the games-dev world, this is my first introduction to web coding. The UI is jquery. I mostly used http://learningwebgl.com/blog for the 3D stuff. Being WebGL, it will work mostly on Chrome, Firefox 4 Beta. Forget about IE. I needed to figure out how to render text to the WebGL canvas - I…
2011 · solar-system-explorer.com
- 11SV
Hi HN, I wanted to share my team's side project! We like to do R&D projects and investigate new areas, interesting problems, etc. This application visualises the dynamic interplay between space weather and our terrestrial power grid, focusing on Geomagnetically Induced Currents (GICs) across the UK. By visualising the magnetic field, induced electric field, and resulting GICs, users can identify vulnerable areas of the UK power network and assess the potential for operational disruptions during geomagnetic storms. We would love to get some feedback and expand this to cover more power grids…
Dec 2025 · solarstorm.space
- 12RW
Weather apps all claim to be accurate but never show their work. So I built a scoreboard that checks: it takes the forecasts each model published (ECMWF, GFS, ICON, AIFS and others, plus Apple Weather, Foreca, OpenWeather and Visual Crossing), waits for the weather to happen, and scores temperature, wind and rain against observations. A few things that surprised me: - AIFS performs very well, yet almost no commercial apps give you access to it or uses it in their blend (I suspect some do without disclosing it tho) - Foreca scores surprisingly well compared to other apps and raw models - ICON…
Aug 2026 · nickleenders.github.io
- 13WZ
This is a small iOS app (iPad / iPhone) app I worked on that basically shows weather on a map (along with day/night info). Just something I made to quickly see what conditions are like all over the world. http://bit.ly/tUuEKB (app is free and ad-free, more just an experiment than anything else) Backend is in java (server) and perl (pulling data). More interesting than the app is perhaps the platform behind it. I hope to introduce other kinds of data to be seen on a map. Currently getting about 500-1000 downloads per day on iPad. Really just curious if people find anything unique or…
2011
- 14
- 15WV
I (Max) built this web app with two friends (Tristan and Shelby) to aid in planning travel and events. Usually you plan things far enough out (say, 3-6 months) that there’s no reliable forecast. So historical data is your best bet. We’ve observed that the last few years is a much better indicator of what the weather will be like than most data sources which aggregate from 1900 or even 1950. We’ve also added tourism stats, and synced it to weather data. This has been particularly eye-opening. It lets us see when a country experiences over-tourism (e.g., Croatia and Austria) relative to its…
2025 · weatherspread.com
- 16VR
Something I've been working on this weekend: visualising climate change in the Netherlands. https://koenvangilst.nl/blog/rising-temperatures I particularly liked the heatmap with monthly temperature data since the 1900s. It's a lot of scrolling, but you can clearly see that climate is accelerating since the '90s.
2023 · koenvangilst.nl
- 17DS
I got tired of bookmarking weather sites wherever I went so I created this. It generates a forecast based on your current location. I'd really appreciate any criticism and feedback even more so.
2011
- 18TT
Resubmitting text to 3d simulation on a map because during the last submission, I quickly reached my quota on Google's photorealistic 3d map tiles, leaving many confused. You can simulate anything on a map in 3d, and it recreates historical events pretty well. It also now includes a timeline of events for each simulation. The goal is to create a simulator that can meaningfully predict the past -- and future events. Now I have an increased daily quota and in case it's reached, a system for providing your own api key. Glad for feedback. I built the frontend with threejs, the atmospheric fx…
2025 · worldlens.co
- 19AO
Hello HN! My name is Rémy and I recently published an astronomy dashboard where everything is open source: the code of the website, the framework it is based on and the library that computes astronomical data. For the last few years, I have been developing the Ruby library Astronoby (https://github.com/rhannequin/astronoby) with as much dedication and perseverance I could while I don't have any scientific academic background. My end goal was to use this library and build a website that not only provides as much data as possible, but let anyone access and understand how it…
Nov 2025
- 20RA
http://callum.com/sandbox/webglex/streetcloud/ Managed to get the rendering working with help from other people generous enough open source and to write about their code.
2014
- 21HM
I made this as a pair programming exercise with o1-preview. o1 did most of the heavy lifting, through high level prompts, but eventually I needed to diverge from it to get to completion. My initial prompt was: --- I'm making a web app: It's like 4chan, but each thread starts with a gps coordinate. People can only post text and images. I want to build it with flask and sqlalchemy. I want just the backend and data model that supports these threads, anonymous users, and users that can register a permanent username. Write as much of it as you can for me. --- This produced a fully scaffolded…
2024 · mapchan.com
- 22UI
Hey everyone! I am excited to share updates on four of my & my teams' open-source projects that take large-scale search systems to the next level: USearch, UForm, UCall, and StringZilla. These projects are designed to work seamlessly together, end-to-end—covering everything from indexing and AI to storage and networking. And yeah, they're optimized for x86 AVX2/512 and Arm NEON/SVE hardware. USearch [1]: Think of it as Meta FAISS on steroids. It's now quicker, supports clustering of any granularity, and offers multi-index lookups. Plus, it's got more native bindings than probably…
2023 · usearch-images.com
- 23IB
Hi HN! I built a proof of concept 'newspaper' that creates short news articles of today's current events with GPT. This is a very rough proof of concept but I can't help but think this concept is the future. I think we'll all have AI daily newspapers in whatever theme we want, covering any amount of information we want, with the ability to expand or contract article length instantly. Sharing just to get everyone thinking about this future. Thanks for reading!
2023 · thegordonpost.com
- 24IJ
I've just revamped my website for image-to-image conversion called Ekpic and would love to get your feedback on the new version. I have not visitors nor anything, but hey, whatever . In any case, I wanted to have good metrics for speed. I just changed the framework to astro. Still various modifications to do. All images are converted locally, that's one of the reasons I created the site. Also, I wanted something a bit more modern than the standard.
2025 · ekpic.com
Ranked by how close each launch is in meaning, then by votes. Refine with a description →