Forecast period representing the wind gust value in ECMWF meteogram
-
@Gkikas-LGPZ
Yes, same with rainfall which is said to have occurred in the last 3 hours. This is confusing in the 1-hour meteograms. -
@Suty
Please could you clarify the question about the wind speed, gusts speed and rain amounts in the 1-hour meteograms. Are they predicted for the last 3 hours or for the last hour?
It seems that for rain it is quite obvious: forecast for the last 3 hours on the weather picker and 1 hour in the 1-hour meteogram.
Is it the same for wind and gusts?
-
@idefix37 Hi there, as you said rain in the picker is displayed as a sum of 3 hours, but beteogram in general shows all values in 1h step and it is not anyhow interpolated from 3 hours.
-
Are the meteogram images generated in-house or are they sourced through ECMWF or another party? If in-house, are you able to seek which ECMWF gust field code is used for the Meteogram display?
From the ECMWF HiRes 10-day dataset:
10fg6 (10m gust in last 6hrs),
10g (10m gust in since previous post-processing),
10fg3 (10m gust in last 3hrs),
and i10g (instantaneous 10m gust).There are a few options available. I use the EC gust as a forecasting parameter and would like to get confirmation as to the gust sampling time.
Thanks.
-
Hi @stitch, we're using
10fg3for forecast hours 0-144 and10fg6from forecast hour 150 further. That is how these parameters are available. Values for 1h step are linear interpolation of those 3h or 6h values. -
@Filip_K
Hi,
For Wind, are 1 hour step forecasts also interpolated ?
But not for Rain? -
@Filip_K thank you
-
For Wind, are 1 hour step forecasts also interpolated ?
But not for Rain?For ECMWF-HRES, only gusts need to be interpolated because they are available only every 3 or 6 hours. Precipitation is available every hour.
-
@Filip_K
Thanks you, and same for Wind, ECMWF provide hourly forecasts ? -
@idefix37
yes, every other parameter is available for each hour
