This is now a third variation of an older bug for hindcast of the HIRLAM data.
But it seams that it have come back to haunt us once again.
For me, this time, the HIRLAM flash bug is not ocurimg,
.
It used to be periodically recurring alongside a fake rain in the hindcast data (this was before radar if I remember correctly).
Then for a while it was only in the beginning of the previous day, (and the graphs did not show hirlam hindcast older than 1 day, though the map did).
For me, this time it is only happening once, and it is while the HIRLAM hindcast graph shows a “fake” rain 11 h ago, (not shown in any of the other models).