How can this condition exist? The cool temps would crust up the surface snow.
Not likely to get corn snow in below freezing conditions with lack of solar radiation.
Why is the interface considered weak with hard test results and resistant fractures?
I find it difficult to see that daytime temperatures are "below the freezing point", yet "rain has started within the last 3hrs"?????
Again i wonder if the moderate results come from isolating the crust.
Obviously this assessment of not serious is entirely dependent on time of day and the strength of the crust. Unfortunately time of day is not one of the criteria

not exposed to sunlight and additional decission points
i dont know if you can have a unsupported slope with mature timber, i believe the timber in itself would make it supportive
crossloaded and shallow, potential for large releases
not steep and small releases
steep crossloaded slopes will always be unfavourable
corn snow conditions, 40 degrees + mature timber - sporting!
40 degree into a terrain trap
Wet slabs are not my specialty. My biggest concern might go back to the fact there is a terrain trap.

Only slush avalanches can be expected at this inclination.
I question if it is protected from wind transport I would vaguely assume it it of a northerly aspect which would be less likely to produce a wet slab
Unless of course some strange layer exits, a 20 degree slope is reasonable, it really depends on the exact terrain trap
A fairly small slope...

I would imasgine that triggering an avalanche in corn snow conditions is very unlikely, considering it is a solid crust despite the rain
its in the shade and therefore not affected by radiation, but deteriorating due to warm temps
thick crust
I htink unlikely to trigger given the hard crust, depth of weak layer and mature forest
I'm relying on the mature timber for protection from significant avalanches
the solid crust should bridge the interface at 30-60. Problems would come where the crust was not solid ie around rocks.
solid sfc Cr is positive, but solar radn is the likely,
right now given the crust
This is a hit and miss. because it is slightly refrozen does not take away from a potential hazard. things can change very quickly
given Cr is solid very low chance of wet slab
lack of weak layers
I'm finding this hard to answer because there are 2 key pieces missing that being the time of day which is key in this situation and if there is any wind blowing which will affect temp penetrating,
the point that concerns me the most over the long term/high use of the slope is "variable snowpack" which ramps up the chance of finding a trigger point
again with all these wet slides the time of day is a key part of the descion for me, generally speaking there is such a big difference between am &pm
I might be missing the point, I'm sure if the slide would be wet but it looks dodgey
the slab is only part of the problem here, the sfc will likly be moving (sluffs) in that type of terrain this is what I'd be most worried about (very worried)