Uh oh, that’s a Pipistrel Alpha. Last I checked, they’re not meant to carry “three souls.”
Anyway, for reference in case it’s relevant:
KPRB 082253Z AUTO 21020G30KT 10SM CLR 21/12 A2988 RMK AO2 PK WND 21030/2203 SLP114 T02110117
To be fair, there are microclimates all over that area, so what’s happening at PRB may not be a great indication of what’s happening in the hills 7 miles away.
Halter has a 3353’ runway 4-22 and is situated in a narrow, but not overly deep valley at 1488’ MSL. The runway slopes down about 2.2% to the southwest. Density altitude would have been about 2500’.