snowpack on mt san jacinto snowpack on mt san jacinto
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11.04.2023

snowpack on mt san jacintosnowpack on mt san jacinto


Reliable tracks are currently only known to be my posthole tracks from 15th for Devils Slide Trail through to San Jacinto Peak via the Wellman, Peak, and East Ridge trails, and then descending Deer Springs Trail. There is a well-traveled track to follow through the very light and patchy 1-3 inches of icy snow. With compaction of the trails over the next few days, snowshoes may become less useful, however they will remain valuable for off-trail travel at the highest elevations for the foreseeable future. Thank you so much for your support. We survey the trail system daily, with hikes via different routes to San Jacinto Peak several times per week, Tahquitz Peak and vicinity at least weekly, and many other trails on other days. However they will remain very valuable for off-trail travel at elevations above about 9000 ft (potentially lower in places) for the next week or two at least. Snow depths are currently suitable for snowshoeing above about 9000 ft, potentially lower in places. I measured 1.5 inches of fresh snow at Saddle Junction early this morning, with about one inch at Humber Park, and 0.8 inch of snow (following 0.7 inch of rain) at 5550 ft in Idyllwild. Semi trucks parked at the Golden Acorn Casino & Travel Center in Boulevard are shown on Feb. 24, 2023. Snowshoes are not currently advisable on these slopes due to the angle of the underlying ice. I recorded a short video discussion there (available here on YouTube) which gives a feel for current conditions. Three significant trees are now down across the trail, including two major hazards (one new in gale force winds on 26th) that are not easy to hike around both roughly halfway along the trail. Currently only two major trail routes have been traveled and even those may become partially obscured by drifted snow and fresh icefall. South Ridge Road is now clear of ice and snow. In the days since the storm, we have also surveyed trails around Tahquitz Peak, South Ridge, Spitler Peak, and Deer Springs, among others. Following the twelfth storm system of this winter on 29th-30th January, temperatures have largely swung to well above seasonal, with melting underway at all elevations, but especially below 8000 ft. They are strongly recommended on certain moderate and higher angle slopes, at a minimum on the Peak Trail above Wellman Divide, the Wellman Trail, Deer Springs Trail above Little Round Valley, and uppermost South Ridge Trail, and on both flanks but critically on the north face of Tahquitz Peak. Conversely, lower down Devils Slide Trail is a combination of very light snow cover, slush, and multiple stream crossings, with much water flowing down the trail. The forecast for the last ten days of December differs radically from what was predicted just a week ago, and a major warming trend is expected rather than another cold Pacific storm. Final totals for Idyllwild for the three day storm event were 6.5 inches of snow, plus an impressive 5.06 inches of rain. UPDATE Tuesday 13th December 2022: This morning Anabel and I broke trail up South Ridge Road and South Ridge Trail to Old Lookout Flat (7600 ft). Winter is a real bona fide season at Mount San Jacinto State Park. Currently spikes at a minimum, and ideally crampons, with an ice axe (and knowledge of how to use it), are strongly recommended. Spikes tend to be especially useful for descending trails. San Jacinto State Park boundary (Strawberry Junction, Round Valley, Tamarack Valley or Little Round Valley) contact State Park Headquarters 1-951-659-2607. . Mountain High. Hikers should be prepared for temperatures below freezing in the high country, and far below freezing when considering wind chill effects (see below for my recent weather observations from San Jacinto Peak). 24F-4C . This storm is expected to have two periods of precipitation, one each on 11th and 12th. They are not currently recommended for traversing moderate or higher angle slopes above 9000 ft that have challenging ice underlying powder. Vehicles not parked in these spaces may be ticketed and/or towed. Note that tracks are being obscured very quickly by drifting of snow from strong winds, sometimes in hours or even minutes (see photo below). Storm systems forecast for 21st-24th and 28th February are all predicted to include severe windchill temperatures near or below -20F (-29C). Deer Springs Trail has an excellent posthole track to follow along its entire length. The Wellman Trail from Annies Junction to Wellman Divide has about 40% icy snow cover. Given the importance of this trail for the safety of northbound PCT hikers in particular, it is one of several trails adopted by the Trail Report. Idyllwild (at 5550 ft): 0-1 inch (0.5 inch hail/sleet plus 1.04 inch rain on 5th). Altitudes are approximate. On multiple recent ascents of San Jacinto Peak I have generally ascended and descended via the east side (Devils Slide, Wellman, Peak, and East Ridge routes). Some hikers will find spikes are useful at least for descending. They are now invaluable on heavily traveled, compacted, icy tracks (before they clear of snow in the coming weeks) such as Devils Slide, Ernie Maxwell, and Deer Springs trails, at least, especially mornings when conditions tend to be most icy, and for descending. There is the possibility that this will end abruptly with a minor storm on Monday 28th November, with 1-3 inches of snow possible above 10,000 ft. As always after storms in the San Jacinto range be aware of considerable ice fall from overhead trees. Snow Valley Mountain Resort. As mentioned last week, current trail conditions are oddly reminiscent of spring, with snow distribution and iciness typical of April rather than December. Sadly this phenomenon has become much more of a factor in recent years with freezing rainfall (rather than snow) occurring at higher elevations at higher frequency with much warmer weather systems. I also reported on the storm in real time over the past couple of days (available here) which has more detail than this summary. Skyline Trail has a good track to follow through light icy snow above about 7200 ft (the Traverse to Grubbs Notch). Black Mountain Road also closed on 7th November to vehicle traffic at the gate 1.7 miles up from Highway 243. They are not currently recommended for moderate angle slopes above 9000 ft that have challenging ice underlying shallow powder. At the Peak on Monday 30th January 2023 at 1110 the air temperature was 15.5F (-9C), with a windchill temperature of -0.4F (-18C), 98% relative humidity, and a light SSE wind sustained at 3 mph gusting to 8.4 mph. I kept those on for the rest of the ascent, and almost all of the descent, finally removing them most of the way down Devils Slide Trail. A very mild system with rain to 9000 ft elevation (and consequently very icy conditions), and one inch of fresh snow above about 9000 ft elevation, increasing to 1.5 inch above 10,000 ft. Details of snow depths measured at various locations on the trail system are given at the foot of this posting. The freeze level was above 7000 ft for most of the storm, with freezing rain plastering the vegetation as high as 10,000 ft. It was near-whiteout conditions due to wild spindrift above Wellman Divide, but the new snow was firm and overall made for good snowshoeing conditions. Strong winds expected on 11th-12th February, and again on 14th, will likely obscure many tracks with spindrift. At the on Monday 5th December 2022 at 0840 the air temperature was 24.1F (-4C), with a windchill temperature of 2.8F (-16C), 20% relative humidity, and a bitter WSW wind sustained at 18 mph gusting to 33.0 mph. I was surprised to find that no one had made it through on the Wellman Trail over the weekend, so I postholed somewhat over my snowshoe tracks from 15th until Wellman Divide. Snow cover is essentially continuous from Strawberry Junction to San Jacinto Peak, although patches are starting to clear below 8500 ft (south of the top of the Marion Mountain Trail). With such mild storms this winter, it is interesting to speculate how much snow would currently be around the high peaks if air temperatures had been just a couple of degrees cooler. Forecast precipitation is currently only a dusting of 1-2 inches of snow at upper elevations, but combined with strong winds this will be sufficient to complicate route-finding. The next comprehensive update of the Report will likely be in the evening of Wednesday 11th. Snow cover remains virtually continuous, but a few small patches are clearing below 7000 ft. Spikes are strongly recommended, at least for descending. UPDATE #1 for 10th November 2022: We hiked Spitler Peak Trail to its junction with the PCT this morning. Please check this page for periodic updates throughout the storm (the most recent is at the top). Spikes are currently recommended throughout the trail system above about 6500 ft. The State Park Stone Creek campground is also closed. but ideal for snowshoes, which I used from Saddle to San Jacinto Peak and back. 16 F. The route largely follows the established trail, but hikers coming from Long Valley over the weekend either did not find or follow my broken trail from last week, so in sections the route is unusual. A minor storm on the night of Tuesday 21st will include severe cold and severe winds, followed by milder, moderate storm on 22nd-23rd, and then an unusual atmospheric river combined with very cold air again producing heavy snowfall for 23rd-25th February. Most days will be at least partly cloudy. Generally considered a challenging route. Spikes are recommended, at least for descending. Spikes are currently usefulthroughout the trail system above about 6000 ft, potentially lower in places. This started as low as Devils Slide Trail and continued all morning. Spitler Peak Trail has a very visible boot track through light snow to the PCT. Snow depths measured at various locations on the trail system are given at the foot of this posting. Relatively mild temperatures combined with a weakening sun at this time of year means that snow melt may be slow at upper elevations, and conditions will be ideal for freeze/thaw cycles and hence icy trails everywhere above 6000 ft. At San Jacinto Peak (10,810ft/3295m) on Monday 14th November 2022 at 0910 the air temperature was 33.3F (1C), with a windchill temperature of 20.7F (-6C), 25% relative humidity, and a cool NW wind sustained at 7 mph gusting to 12.9 mph. South Ridge Trail [hiked 13th and 17th December] has a well-traveled posthole track through shallow snow as far as Tahquitz Peak. At the Peak on Wednesday 15th February 2023 at 1030 the air temperature was 4.9F (-15C), with a windchill temperature of -26.3F (-32C), 65% relative humidity, and a bitter due North wind sustained at 19 mph gusting to 27.7 mph. As described below, there were only about three inches at Saddle Junction (PCT Mile 179) yesterday. In general temperatures are expected to warm to above average into next month at all elevations, especially at the highest elevations in the first week of February. From Laws east to Caramba the route of the original Caramba Trail has been well-cairned by myself and others and can largely be followed with very careful route-finding. South Ridge Trail (surveyed 19th November) is largely clear of snow from the top of South Ridge Road to Old Lookout Flat at about 7600 ft, with just 5% cover of icy snow. In summary there are good tracks in place through the very shallow snow, and spikes are not required (but may be useful for some hikers depending on their experience in thin icy snow). My 2022 survey counted 97 trees down on this 2.1 miles of trail. On Monday 14th we ascended San Jacinto Peak via the east side (Devils Slide, Wellman, and Peak trails) and descended the west side via Deer Springs Trail. Likely obscure many tracks with spindrift has a good track to follow along its length. Were only about three inches at Saddle Junction ( PCT Mile 179 ).... Parked at the foot of this posting 5th ) good track to follow through light icy snow above 6000. 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