Hot on the heels of our record setting Autumn heatwave, an upper level low off the coast has been spinning subtropical moisture into Southern California. The unstable weather has produced some impressive clouds, isolated showers, strong thunderstorms, as well as a few rainbows. This thunderstorm development is north of Los Angeles.
From today’s run in the Simi Hills.
Today at 12:15 p.m. PDT the temperature at Downtown Los Angeles (USC) reached 113°F (45°C), which is the highest temperature recorded downtown since weather recordkeeping began in 1877.
It wasn’t quite as hot in the San Fernando Valley. The high temperature at Pierce College reached 110°F.
When I started my run at Ahmanson Ranch it was 106°F. I took two bottles with ice water. One was used to keep my arms, legs and head/neck wet. With the relative humidity low, this was very effective for cooling. I picked a 45-50 minute course that was not too strenuous, and kept the pace moderate.
It was a surprisingly moderate run, but I sure wouldn’t want to run out of water or have some other problem when the temperature is that high!
Mt. Baldy fron the summit of Mt. Baden-Powell
Yesterday, Woodland Hills topped the 90° mark for the first time this year. But somebody forgot to tell the local mountains about the warmup. This morning, I was about a mile into an out and back trail run from Islip Saddle to Mt. Baden-Powell, and with the wind chill, it felt like the temp was in the 40’s.
It was chilly in running shorts, and I debated pulling some warmer clothes from the pack. In addition to a short-sleeve shirt, I did have on a pair of pull-on long sleeves. For the moment that seemed to be enough. Rounding a corner, the trail leveled, and up ahead I could see a hiker headed my way. Based on the time, I figured he was descending from Little Jimmy Campground. We exchanged greetings, and as we passed, he commented, “you know there’s a lot of snow on the trail.”
This Spring the weather in California has been dominated by a series of cool troughs, slowing the snow melt and in some cases adding to it. It its May 27th Summary of Snow Water Content, California Cooperative Snow Surveys reported the statewide snowpack at nearly twice the normal amount for the date. Squaw Valley reopened for Memorial Day weekend; and with over 100 inches of snow since April 1, Mammoth Mountain plans to operate through July 4.
On the shaded, north facing slopes of Mt. Islip there was more snow than I’d seen since the Spring of 2005. It couldn’t be avoided. However, the route was well-traveled, and where there was snow, dirt-covered steps eased the way. I had picked up a short length of downed fir, and it worked OK as a crude ice axe, or if you prefer, a stubby trekking pole. It enabled me to move a little faster, and had the added benefit of keeping my upslope hand out of the snow.
It didn’t take long to reach Windy Gap (7588′), and soon I was working up the trail to the gap above Windy Gap. Here the trail winds through a ghost forest of old growth trees, burned in the 2002 Curve Fire. Recovery has been slow, and it was heartening to see a young Jeffrey pine in the midst of all the deadwood. It also gave me a sobering perspective of the time that was going to be required for the recovery of the forests decimated by the Station Fire.
The trail climbs up to the crest of the San Gabriels near peak 8426, about a mile east of Windy Gap. From here it more or less follows the prominent divide all the way to Mt. Baden-Powell (9,399′). It’s the “more or less” part that’s key in a snowy year. The shaded north side of the divide may be completely snowbound, while the crest and south side are snow free. The way the ridgeline is oriented, storm winds create deep bands of snow along and just north of the crest. In places the trail can be buried in several feet of snow.
On the east side of Mt. Hawkins I checked out a tree that had been struck by lightning, and then continued along the ridge. The wind was little more than a breeze now, and the temperature comfortable. I pulled off my running sleeves, and then followed the trail across the warm, south facing slopes of Throop Peak. Sometimes on the trail, and sometimes on the crest, I descended to a saddle and then climbed up and over Mt. Burnham (8997′).
On the summit of Mt. Baden-Powell there was almost no wind. The sun was warm and the air clear. Across Vincent Gulch Mt. Baldy gleamed alpine white, its summit ridges still heavy with corniced snow. Many miles to the east, snow could also be seen on San Gorgonio Mountain, and Mt. San Jacinto. A Clark’s nutcracker complained raucously from the top of a Lodgepole Pine, and I assured the bird that I would be leaving the summit soon.
Some related posts: San Gabriels High Five, Islip Saddle – Mt. Baden-Powell Out & Back
Eagle Rock From Eagle Springs Fire Road
Is it May or March? With all the blustery weather systems that have been moving through Southern California, it’s been hard to tell.
Today I had planned to head back to the high country of the San Gabriels, but instead decided to take advantage of the spectacular weather and do a rambling 24 mile run in the Santa Monica Mountains.
It was a good choice. Early in the run growing mountains of silver-lined cumulus towered above the Hub, and a brisk wind tempted me to pull the sleeves from the pack. Wildflowers lined the trails, and the chaparral teemed with color, sound and scent. It was a long run kind of day.
Note: Later in the day I talked to a runner who had been at Lake Arrowhead early in the morning. He said it had been snowing down to 3000 ft! According to the NWS, record low temperatures for today were set at Lancaster (41°), San Luis Obispo (38°), and Sandberg (28°).
We’ve had some great running weather in Southern California this Spring, with more than our usual share of cool days and postcard skies. Remarkably, the highest temperature recorded at Downtown Los Angeles so far this year was in the final few days of Winter, when the temperature hit 88 on March 16.
The title photograph is from a recent run in the Simi Hills.
I heard a news report the other day that Southern California’s rain season would end in two weeks. While Southern California typically receives the bulk of its precipitation in the months of November through April, the rain season doesn’t turn off like a switch on May 1. There certainly can be significant rain in May, and even June.
The water year for Downtown Los Angeles (USC) is from July 1 to June 30 of the following year. So far, Downtown Los Angeles (USC) has recorded 16.17 inches of rain during the current water year. This is more than an inch above the 1971-2000 annual climate norm for Los Angeles of 15.14 inches.
Our Sunday-Monday storm put Downtown Los Angeles at 1.51 inches of rain for the month of April — well above the climate normal of 0.83 inches. The normal amount of precipitation for May is 0.31 inches, and for June is 0.06 inches. But those are just averages. On occasion we receive much more than this, and sometimes much less. On the up side, according to NWS data, in April 1965 Los Angeles recorded a total of 6.02 inches of rain. In May 1921, 3.57 inches was measured; and in June 1999 0.98 inch was recorded.
Although the current El Niño has weakened, convection is still somewhat enhanced in a broad region of the equatorial Pacific, and the MEI, ONI, and GWO indicate the continued presence of El Niño. This could result in more active Spring weather than usual, and more opportunities for rain in Southern California.
At the moment, the next opportunity for some Southern California rain looks to be next week, around Tuesday or Wednesday. We’ll see!
The title photo is from a run on the Chumash Trail at the end of March.