Decent overnight refreeze (on open slopes) on Castle Peak

We went for a morning tour on the generally SW face of Castle Peak. On open slopes there was a decent 5 inch thick surface refreeze with residual wet snow below it that had not refrozen overnight. Nearby under forest canopy, we encountered a poor refreeze at the same time. This is consistent with an overnight snow surface refreeze that occurred during above freezing air temperatures, reliant on radiational cooling of the snowpack under clear skies.

We ascended to the base of the prominent cliff band across the SW face. We heard but did not see some minor rockfall. Was started our descend around 10:45 am and encountered supportable conditions all way out.