Caballero Canyon Sunrise

Marine layer spilling over the the crest of the Santa Monica Mountains into Caballero Canyon.

At the start of my run from the Top of Reseda (Marvin Braude Mulholland Gateway Park) the visibility above the fog-filled San Fernando Valley was at least a hazy 25 miles.

Ahead of another rainstorm, offshore pressure gradients had weakened and the onshore flow was rapidly increasing, pushing marine layer clouds into the coastal canyons of the Santa Monica Mountains and spilling over the low points of the crest.

Marine layer fog flowing between Rustic Canyon and Garapito Canyon
Marine layer fog flowing between Rustic Canyon and Garapito Canyon

My first stop was going to be Temescal Peak. This little peak is about 3.5 miles from the trailhead, near the junction of Temescal Ridge fire road and the Backbone Trail. It’s a nice way to start a run, and on a clear day it can have surprisingly extensive views.

Fog flowed over Fire Road #30 between Rustic Canyon and Garapito Canyon, but once through this ethereal river, it was clear all the way up to the Hub. I wondered if I was going to be able to see Mt. San Jacinto from the top of Temescal.

The answer to that question turned out to be no. In fact I could barely see my nose from Temescal Peak. In the 12 minutes it had taken me to get to the peak from the Hub the entire area, including the summit of Temescal Peak (about 2100′), had become enveloped in fog.

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