<![CDATA[Analysis charts]]>Why doesn't Windy have forecast for +000 hours (analysis)? It cannot be done for precipitation, but for other parameters?

]]>https://community.windy.com/topic/15275/analysis-chartsRSS for NodeFri, 17 Apr 2026 08:25:04 GMTThu, 28 Jan 2021 09:19:57 GMT60<![CDATA[Reply to Analysis charts on Fri, 29 Jan 2021 11:14:51 GMT]]>Yes, @idefix37 is right, there is a delay between analysis and forecast, as described in the link proposed by @idefix37. This should be the case for other models.
Price to acquire data and analysis can explain that people go for the forecast

]]>https://community.windy.com/post/69679https://community.windy.com/post/69679Fri, 29 Jan 2021 11:14:51 GMT<![CDATA[Reply to Analysis charts on Fri, 29 Jan 2021 10:56:10 GMT]]>@damir120505
For ECMWF Analysis is not disseminated together with Forecasts.
https://www.ecmwf.int/en/forecasts/documentation-and-support/data-delivery/dissemination-schedule

May be Windy chose not to acquire the Analysis but only the Forecasts.

Same for GFS
https://www.nco.ncep.noaa.gov/pmb/nwprod/prodstat/

]]>https://community.windy.com/post/69674https://community.windy.com/post/69674Fri, 29 Jan 2021 10:56:10 GMT<![CDATA[Reply to Analysis charts on Fri, 29 Jan 2021 08:55:45 GMT]]>@korina, I knew the information from the topic before.
Indeed, before starting to calculate weather forecasts for the future, the model analyzes the weather at 00 and 12 UTC and receives a "map" for this time. This time is called analysis or +000 hours. But the first available term in Windy is an hour or 3 after the analysis (+001 or +003 hour).

]]>https://community.windy.com/post/69666https://community.windy.com/post/69666Fri, 29 Jan 2021 08:55:45 GMT<![CDATA[Reply to Analysis charts on Fri, 29 Jan 2021 08:42:22 GMT]]>@damir120505 You can learn more about reference and update time here -

https://community.windy.com/topic/11361/a-difference-between-reference-time-and-update-time

]]>https://community.windy.com/post/69664https://community.windy.com/post/69664Fri, 29 Jan 2021 08:42:22 GMT<![CDATA[Reply to Analysis charts on Fri, 29 Jan 2021 08:21:15 GMT]]>@korina, any model have analysis map. If model updated in 00 UTC it has forecast for +001 and analysis. But analysis ISN'T forecast of previous model run. For example, init time and valid time are same on this picture. Unfortunately, Windy has no analysis map.
a0d1d58a-017b-4383-8062-8ab5c3d0097b-image.png

]]>https://community.windy.com/post/69663https://community.windy.com/post/69663Fri, 29 Jan 2021 08:21:15 GMT<![CDATA[Reply to Analysis charts on Fri, 29 Jan 2021 08:11:28 GMT]]>@damir120505 The forecast data are valid until the next update time (or ref time). This is just how the GFS or other models work.

]]>https://community.windy.com/post/69659https://community.windy.com/post/69659Fri, 29 Jan 2021 08:11:28 GMT<![CDATA[Reply to Analysis charts on Fri, 29 Jan 2021 06:19:42 GMT]]>@idefix37
I think damir talks about initial data for every run of the model.

]]>https://community.windy.com/post/69650https://community.windy.com/post/69650Fri, 29 Jan 2021 06:19:42 GMT<![CDATA[Reply to Analysis charts on Fri, 29 Jan 2021 06:00:00 GMT]]>@idefix37, I'll show example on GFS. Last update - 00 UTC. First available forecast is for 01 UTC (+001). But I need chart for 00 UTC hour (+000 or Analysis).
c1c3b2ba-21e8-4ab5-8138-9a45f7ef2790-image.png

]]>https://community.windy.com/post/69649https://community.windy.com/post/69649Fri, 29 Jan 2021 06:00:00 GMT<![CDATA[Reply to Analysis charts on Thu, 28 Jan 2021 14:21:33 GMT]]>@damir120505
Please show a screenshot ! You are not clear.
Are you talking about time shown in the time line or in Meteogram?

]]>https://community.windy.com/post/69594https://community.windy.com/post/69594Thu, 28 Jan 2021 14:21:33 GMT<![CDATA[Reply to Analysis charts on Thu, 28 Jan 2021 13:55:50 GMT]]>@damir120505 The ECMWF model is updated every 12 hours (every 6 hours with Windy Premium). Each model has a different update times.

]]>https://community.windy.com/post/69592https://community.windy.com/post/69592Thu, 28 Jan 2021 13:55:50 GMT<![CDATA[Reply to Analysis charts on Thu, 28 Jan 2021 13:34:16 GMT]]>@korina, no. I didn't mean 00 am. The model is updated every 3 or 6 hours. After the update, the first available forecast is +003 hours (+001), but Windy does not have a +000 forecast (analysis).

]]>https://community.windy.com/post/69589https://community.windy.com/post/69589Thu, 28 Jan 2021 13:34:16 GMT<![CDATA[Reply to Analysis charts on Thu, 28 Jan 2021 12:50:29 GMT]]>@damir120505 Forecast is also available for 0 am -
Screenshot 2021-01-28 at 13.49.00.png

]]>https://community.windy.com/post/69585https://community.windy.com/post/69585Thu, 28 Jan 2021 12:50:29 GMT<![CDATA[Reply to Analysis charts on Thu, 28 Jan 2021 12:40:32 GMT]]>@korina, with premium I can see +001, +002, +003, +004... and +000 hours forecasts?

]]>https://community.windy.com/post/69581https://community.windy.com/post/69581Thu, 28 Jan 2021 12:40:32 GMT<![CDATA[Reply to Analysis charts on Thu, 28 Jan 2021 10:40:07 GMT]]>@damir120505 Hello, in free version of Windy, forecast is displayed in 3hour steps. With Windy Premium you can also view data for 00:00, in case you're referring to this.

]]>https://community.windy.com/post/69564https://community.windy.com/post/69564Thu, 28 Jan 2021 10:40:07 GMT