Out of interest, Appendix B of the report illustrates some radar images for the time period 2133 to 2153 on the night in question.
Correct me if I am wrong, but BCN looks wide open during that time period....
Are those radar images rainfall images?
I haven't actually seen the METARs and TAFs for the day in question as they aren't in the report. Has anyone?
If so maybe they could post them?