Category Archives: nature|weather

San Fernando Valley Morning Clouds

The rising sun illuminates a translucent layer of cloud trapped by a shallow inversion in the San Fernando Valley

The rising sun illuminates a translucent layer of cloud trapped by a shallow inversion in the San Fernando Valley. The mid-level clouds above are associated with a system that brought heavy rain to much of California, but would only produce showers in the Los Angeles area.

From Saturday’s trail run to Trippet Ranch from the End of Reseda (Marvin Braude Mulholland Gateway Park).

Related post: Garapito Trail Runs

Just Me and the Meadowlarks

La Jolla Valley from Mugu Peak

I had to stop running and take it all in. Soaked by recent rains, La Jolla Valley was renewed and green. To my right a meadowlark warbled its silvery call, and in the distance at first one and then another bird followed in song.

Isolated for weeks by the closure of Pacific Coast Highway and Pt. Mugu State Park, the La Jolla Loop Trail was trackless and in places overgrown. Wet with dew, the mustard choking the trail had soaked my shoes and socks.

Sprinkled among the greens were whites, purples, pinks, reds and yellows of the first stage of a wildflower explosion. A sweet scent drifted on the breeze. Running in the valley was like running in a remote and seldom-visited wilderness.



There had been much to see on the run from Wendy Drive. Before the Park closed in December I had surveyed the aftermath of the December 12 flash floods in Sycamore Canyon, Blue Canyon and Upper Sycamore Canyon. One of the reasons for today’s run was to see what had happened in this part of the Park.

Wood Canyon parallels Sycamore Canyon and is probably its largest tributary. Based on the height of the debris piled against the trees, the flash flood that roared down Wood Canyon must have been astounding! Looking down the stream course reminded me of flash floods I’d seen on creeks and streams during the El Nino’s of 1997-98 and 2004-2005.



Bowl-shaped La Jolla Valley is an independent drainage, separate from Sycamore and Wood Canyons and their tributaries. It acts like a huge rain collector and funnels all the runoff down deeply cut La Jolla Canyon to the ocean. In La Jolla Valley all the creeks were scoured by the flash flooding and the small footbridge west of the group campground was washed out. The vernal stock pool on the Loop Trail above La Jolla Canyon was once again full.



It’s no surprise that the December flash floods washed out the trail in La Jolla Canyon. I can’t think of a steeper and more narrow canyon in the park.  The flow must have been phenomenal! The La Jolla Canyon Trail is closed and barricaded at its juncture with the Loop Trail. Here are archived maps of Rancho Sierra Vista/Satwiwa and Pt. Mugu State Park originally from the NPS Santa Monica Mountains web site. Also see the Pt. Mugu State Park maps on VenturaCountyTrails.org.

In recent years the drought has dramatically reduced the number and variety of wildflowers blooming in the Santa Monica Mountains. Not so this year. Since October 1 Camarillo Airport has recorded 7.0 inches of rain, which is about 92% of normal. Last year over the same period only 0.84 inch had been recorded.



Many species are already blooming and many more will be blooming soon. On today’s run I saw shooting stars, encelia, lupine, nightshade, monkeyflower, paintbrush, California poppy, bladder pod, wild hyacinth, phacelia, wishbone bush and more. A small patch of chocolate lilies were in bloom along the eastern segment of the Loop Trail.

La Jolla Valley and Mugu Peak can be busy places, but today it was just me and the meadowlarks.

Update February 3, 2015. According to the Ventura Star six miles of Pacific Coast Highway from Las Posas Road to the Sycamore Cove Day-use Area reopened today providing access to Pt. Mugu State Park from the south. Note that the La Jolla Canyon Trail is still closed and likely to be for some time.

Some related posts: Pt. Mugu State Park Debris Flows and Flash Floods, Wendy Drive – Mugu Peak Challenge, Laguna Peak, La Jolla Valley, and the Channel Islands

Greening Hills of Southern California

Greening hills of Ahmanson Ranch

Last year on this date (January 14) Downtown Los Angeles (USC) had recorded just under an inch of rain for the water year beginning July 1. Here’s what it was like out at Ahmanson Ranch, near upper Las Virgenes Canyon, on January 14, 2014.

Today’s photo was also taken at Ahmanson Ranch, the difference being that this year, as of January 14, Downtown Los Angeles has recorded 5.64 inches of rain since July 1, which is about 98% of normal.

Showers on the Strawberry Peak Circuit

Craig on the Colby Canyon Trail segment of the circuit around Strawberry Peak.

Did the circuit around Strawberry Peak with Craig this morning. There was a little rain on the last few miles of the run, but the changeable weather just made the run better.

Pt. Mugu State Park Debris Flows and Flash Floods

View of Blue Canyon from Boney Mountain

The photo above was taken from the edge of the western escarpment of the Boney Mountain massif in the western Santa Monica Mountains. The western side of the mountain is a huge bowl that funnels runoff into Blue Canyon. Blue Canyon can be seen on the left side of the photograph. It is a tributary of Big Sycamore Canyon. More than 60% of the Blue Canyon drainage was burned in the May 2013 Springs Fire.

In the early morning hours of Friday, December 12, 2014, a very strong cold front, enhanced with moisture from an atmospheric river, produced a line of strong storms that produced rain rates in the Springs Fire burn area as high as 2 inches per hour. This resulted in widespread flash floods and debris flows in the burn area, much of which is in Pt. Mugu State Park. Mud and debris flows originating from the burn area inundated homes below Conejo Mountain and closed Pacific Coast Highway.

This slideshow includes photos of the aftermath of the flash floods and debris flows in Blue Canyon, Sycamore Canyon and Upper Sycamore. These were taken on a trail run on December 14, 2014. Also included are some NWS Los Angeles/Oxnard tweets and some additional meteorological images and info.

Note: According to the Pt. Mugu State Park web site, the Park is closed until “at least January 12, 2015.”