Thanks to the spotters MW0BBU and G4SSH. Rain started at around 0830 UTC when I was working the pileup on 10118 kHz. So unfortunately I had to give QRT since it became difficult to write anything to my logbook. The rain continued for about an hour and half while I was coming down from the Pointe Noire de Pormenaz 2323 m.
Radio: ATS3B and link dipole
APRS: probably no coverage