Frozen Lake Pass Weather

This mass flow mechanism was set up and prevalent though out the Sierra. It definitely needed the sun to warm the water on the soil and evaporate. Cold wet surfaces don't respond effectively, no sun, no evaporation. Rain falls on warm soil or rock, Evaporation from the sun exposure forms water vapor. Buoyancy forces motivates the vapor to lift off the soil / rock, and carries it uphill in the absence of wind. Traveling uphill, the vapor condenses to fog/vapor. A ridge line will boost the fog into upper elevations. Cloud formation, returning rain in a different location along the ridge line. Repeat. These mechanics recycled the rain in the best possible manner to fully wet every surface in the valley. In the night, even though it didn't rain, if you were under a tree in the fog, you woke even wetter than sleeping in the rain, inside and out.

 

You can see the moisture was coming out of Lake Basin, condensing more as it rose up over the ridge and fell as rain again in the Upper Basin.

 

Voigtlander 12mm f/5.6 Asph III VM

Handheld

Done