Strong overnight refreeze on Carson Pass.

     We started around 9:00am at the top of Carson Pass. Skies were clear, there was no wind and temps were near freezing. As we got on trail, it was evident that there was a strong overnight refreeze as the snow was hard and supportable starting @ 8500'. Right around 9000' there was a trace amount of snow from yesterday morning's storm event but firm supportable snow still existed all the way up to 10000' to the saddle between Round Top and the Sisters on N-NE-E facing slopes. By 1130, SE-S facing slopes started to soften up and made for good corn skiing. By 1230, the SW facing slope skiing towards Fourth of July Lake was still firm but edgeable near 10000', but loosened on our descent to 8700'. By 1300, S and E facing slopes softened up and was up to 3-4 inches deep but did not produce any roller balls or pinwheels. On our last descent around 1415, snow on W facing @ 9500' was just starting to soften but was still firm underneath, however, snow did continue to loosen as we got down to Immigrant Lake. By 1515, some cumulus clouds started to form and provide some shade and blocked out the sun for intermittent time frames. East facing slopes within shaded areas felt like they were starting to refreeze as clouds built and temps were dropping through the late afternoon. Along our trip we saw no signs of instability within the surrounding terrain or within our ski turns.