Posts made by fhucho

I like how the weather radar imagery is interpolated/smoothed in space. What kind of interpolation method is used (cubic, sinc, ...)?

@TheRadarGuy I'd guess that weather.com also perform local adjustments to the numerical prediction forecast(s) based on terrain, nearby meteorological stations, satellite data, etc.

It would make sense because in one cell of a 9 km grid, the elevation and therefore ground temperature can vary wildly.

BTW, I found that Weather Underground (owned by owners of weather.com) use their own model for US locations with hourly updates: https://www.wunderground.com/about/data. Dark Sky also use custom model: https://status.darksky.net/2017/06/14/hourly-updates.html.

Looking at the temperature forecast for now at my location (Prague), the observed temperature is 20 °C, EMCWF shows 26 °C, the other models 23 °C.

And looking at the peak Snežka (1602 m), EMCWF shows 20 °C, observed temperature is 10 °C. GFS shows 23 °C (lol).

Weather.com is almost spot on for both locations, I wonder what model they use.

The default for Europe is ECMWF but NEMS and ICON have higher resolution. Is there some statistical comparison of these models, i.e. what these models predicted versus actual observations from weather stations across Europe?

Not sure how should I choose between the models, I assume the default is the best in most aspects?

Would be cool if it was possible to hide controls so that I could see just the map and nothing else.

Actually, nowcasting (and what ClimaCell does - using data from wireless networks as an additional data source), could be a cool business model in case you change your mind about Windy being non-profit. There's little competition to be found.

cc @ivo

Just googled this: https://en.wikipedia.org/wiki/Nowcasting_(meteorology)

Also: https://www.climacell.co/

And to answer my question, MeteoRadar gets forecast data from: http://portal.chmi.cz/files/portal/docs/meteo/rad/inca-cz/short.html

Would it be possible to add a short term (1 hour) rain forecast based on weather radar? Something similar to what MeteoRadar (https://mapy.in-pocasi.cz/) does. By the way, any idea whether they're doing their own prediction or just displaying 3rd party data?

Windy Maps: https://windymaps.com

Out of curiosity, why did people request this feature, whatbis the use case?

Out of curiosity, what does the website traffic look like now compared to typical traffic?

Or display the value under cursor when Ctrl / Shift / ... is pressed.

The geostationary Himawari 8 and GOES-16 satellites produce high-resolution color photos of Earth every 10 minutes, at a resolution of about 10k x 10k. Would be cool to have this as a layer, projected on the map.

Here's an example picture from GOES-16: https://www.nesdis.noaa.gov/sites/default/files/abi_full_disk_low_res_jan_15_2017.jpg