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Overall Climbing Conditions
02-12-18 General Conditions & Climbing Information
Hello, and thank you for visiting. You have arrived at the best place on the internet for avalanche, climbing and weather information for Mt. Shasta.
Winter conditions exist on Mount Shasta, and the Climbing Ranger program is focused on Avalanche Center operations. Avalanche advisories are issued daily. These reports will be the best resource for current conditions on the mountain.
A winter ascent of any route on Mount Shasta presents many risks and challenges. Deep snow, avalanche hazard, and extreme weather conditions are all common during the winter months. Only climbers with avalanche training, medical training, good route finding skills, cold weather experience, and a high level of fitness should attempt a winter climb. Always carry a beacon, shovel, and probe and know how to use them. Check the avalanche advisory and the mountain weather forecasts before you climb. Be prepared for high winds and cold temperatures. Understand that if something goes wrong, or a member of your climbing party gets injured, you need to be prepared to self-rescue. Weather and snow conditions in the winter can often make an outside rescue challenging or even impossible.
The road to Bunny Flat is plowed in the winter, and the gate to the Old Ski Bowl closed for the season on November first. Access to all other trailheads is dependent on snow cover, and all wilderness trailheads have been winterized. Be sure to get summit passes, wilderness permits, and packout bags at the USFS Mount Shasta or McCloud Ranger Stations.
The Bottom Line
Our goal is to ensure you have a positive wilderness experience and come home in one piece! So,
- BE PREPARED for full mountain conditions at any time.
- DO YOUR RESEARCH.
- ALWAYS WEAR A HELMET.
- KNOW HOW TO USE YOUR ICE AXE & CRAMPONS.
- REMEMBER, YOU ARE RESPONSIBLE FOR YOUR OWN SAFETY.
Accidents and Hazards
Almost all the accidents on Mt. Shasta result from:
- Slipping and falling with a failure to self arrest
- Glissading when the snow is too firm
- Glissading with crampons on
- Climbing into a whiteout
- Being struck by early season ice fall or late season rockfall
With the right knowledge, skill, equipment, and decision making, all of these accidents can be easily prevented. Please, wear a helmet, and know how to use your ice axe and crampons any time of the year.
There is always potential for thunder storm activity during the summer months that can shroud the mountain in clouds, limiting visibility. Climbers becoming disoriented on the upper mountain in whiteout conditions, and subsequently descending the wrong route is not uncommon. These kinds of scenarios have resulted in many searches over the years. It should go without saying, but we will say it as a solid reminder: Check the weather before you go and more importantly, monitor the weather as you climb. DO NOT CLIMB INTO A WHITEOUT! Being caught on the mountain in any type of weather can compromise life and limb.
Many hazards exist in mountain terrain. Some of these include:
- Ice and rock fall
- Extreme weather
Ice fall and rock fall are possible year round. It's a simple equation: as snow melts, rock fall increases. If rime ice is seen plastered to exposed rocks above, it will eventually flake off and fall onto climbers. Wear a helmet and keep your eyes up slope as you climb. Pay attention to other climbers: rock fall is often caused from climbers resting in melted out areas and accidentally dislodging rocks onto slopes and climbers below. Be careful not to kick rocks down onto others.
At a height of 14,179 feet Mount Shasta is a high altitude peak. It is common for climbers to experience acute mountain sickness (AMS) with signs and symptoms of nausea, headache, and lightheadedness. Despite being a common condition, AMS should not be taken lightly. It can quickly develop into the much more serious, and potentially deadly pulmonary or cerebral edema. Stop and take a break. If symptoms do not improve, your only choice is to descend!
Mt Shasta is a 14, 179 foot volcano with steep slopes, avalanches, glaciers, rockfall, altitude and extreme weather. Some may feel like Mt Shasta is "safe" due to it's proximity to Interstate 5 and it's "easy" climbing objective connotation. This is false. One should still expect cold, winter-like conditions any time of year. Have the appropriate gear AND skill level. Mountaineering is dangerous and climbers must be able to constantly evaluate the terrain, weather and many other factors in order to have a safe trip. One should also not expect immediate rescue. Many factors can prolong rescues. Thus, it is absolutely necessary, no matter what mountain of the world, that you be prepared.
Check the WEATHER FORECAST before coming up onto Mt. Shasta! Our site's main menu hosts numerous resources on weather. Researching the mountain weather should be an important part of your trip planning.
Clouds and Precipitation: While you may encounter fair weather at lower elevations, cloud caps can form up high. Never climb into a white out as many climbers have become lost or died in similar conditions. Many routes from all aspects of Mt. Shasta converge on the upper mountain (>12,500 feet). During limited visibility conditions, climbers have descended the wrong side of the mountain. Keep an eye to the sky as you climb, turning around if clouds begin to build on or near the mountain.
Lightning: Mt. Shasta is a 14,000 foot lightning rod and is frequently hit by lightning (usually in summer and fall months), so don't push your luck with building thunderheads.
Wind: Winds can reach over 100 mph at tree line (8,000 ft) and much higher in the alpine region. Winds of 40 mph can knock you off balance. Winds of 60-70 mph can force you to crawl. Hurricane strength winds (>74 mph) can make it nearly impossible to stand and will destroy well anchored tents. The strongest winds occur with big pressure and temperature gradients in the atmosphere and tend to occur in front of, and behind storms. The lowest winds occur when the center of a high pressure is over the Mt Shasta area. Take this seriously as wind has resulted in searches, injuries and fatalities.
Tips & Notes
Climb early and descend early. This limits exposure to inclement weather (afternoon buildup of clouds is common), and allows plenty of time to descend before dark, and also allows a rescue effort to ensue before dark in the event one gets injured or lost.
Get an alpine start (2-5 am) and have a turn around time of 12 to 1 pm. Proper equipment, clothing and training are a must. Helmets are recommended always and expect rock and ice fall at all times.
Bring extra warm gear (like a down jacket, balaclava and extra gloves) in all seasons as climbers often develop superficial frost bite during strong winds. The wind chill temperature near the summit in winter and spring can be well below zero.
Anchor your tent well wherever you camp. Tents can and do blow away frequently. Do not plan to camp above treeline if you do not have anchor lines for your tent.
Solo climbing is not recommended. Traveling with an experienced grouped is a good idea, and remember - do not split up the group!
The routes on the north and east sides are not recommended for unguided novices; glacier travel and route finding skills are prerequisites.
Get avalanche training and know how to use your transceiver, shovel and probe in the winter and spring.
Do not expect to be rescued. Rather, prevent rescues from happening in the first place, and be prepared to handle rescues within your own climbing party should something happen. Nature sets its own terms and YOU must judge how much risk you are willing to accept.
When to Climb
The BEST time to climb Mt. Shasta is usually from late May to mid July on the south and west sides of the mountain when summer days are longer and the weather is generally stable. However, in dry years, the thin snow pack creates the best climbing conditions in April, May and early June. When the snow melts, you are left with 7,000 feet of scree, talus and boulders. In heavy snow years the climbing season extends to August or September. There is NO trail to the summit. Climbing is much more safe and fun on consolidated snow.
A winter climb of Mt. Shasta is possible, but it is more difficult and dangerous: extreme weather, short days, avalanches, falling ice and potential post holing increase the difficulty and danger on all routes. If you choose travel in the backcountry during the winter and spring, you need to have the proper equipment and training to stay safe. An avalanche beacon, shovel and probe and the ability to identify avalanche terrain and snow stability is absolutely necessary. A climb of Shasta should not be taken lightly.
Every year, many climbers become lost, injured or killed while attempting Mt. Shasta. Many of these accidents could have been prevented with a little bit of pre-planning and training. Full winter conditions exist currently and YOU need to come prepared.
What to Bring
- MANDATORY: wilderness permit, summit pass, human waste pack-out bags.
- THE TEN ESSENTIALS: map and compass, sunglasses and sunscreen, extra food and water, extra clothing, head lamp/flashlight, first aid kit, matches/lighter, stove, knife/multi-tool, bivy sack
- HELMET, ICE-AXE, & CRAMPONS
- AVALANCHE BEACON, AVALANCHE PROBE, SHOVEL
Wilderness permits, summit passes, and pack-out bags are currently available at the Mt. Shasta and McCloud Ranger Stations for self issue and inside the buildings (maps available) during business hours. The only trailhead open currently is Bunny Flat. The remainder of the trailheads are closed. You may still access the closed trailheads and the bathrooms are open/packout bags available, but you must get your summit pass ($25) and wilderness permit from either ranger station. Annual passes ($30) are only available at the ranger stations and at The Fifth Season in Mt Shasta. The Mt. Shasta and McCloud Ranger Stations are open Monday through Friday from 8 to 4:30pm. Check our climbing regulations for more details.
Using common sense and carrying the TEN essentials keep you and your party out of search and rescue statistics. Wear a helmet, and know how to use your ice axe and crampons. Be prepared and pay attention. The mountain has extreme weather changes.
Winter and Spring months usually see periods of heightened avalanche danger, though this danger could exist in the summer months under the right circumstances. Research the weather and avalanche danger while planning your trip. Have your climbing party bring avalanche beacons, probes, and shovels armed with proficient skills in their use. Know how to identify avalanche terrain and evaluate snowpack stability.
The bathrooms are Closed at Horse Camp and WATER is not available during the winter months. One must melt snow for water in all other places on the mountain, so bring extra fuel. The Horse Camp cabin and the surrounding property are owned and managed by the Sierra Club Foundation. The cabin is open year round and all are welcome, however one cannot sleep inside the cabin except in emergencies. Make sure you close the door when you leave. If you plan on camping at Horse Camp, please make sure to pitch your tent on either an existing tent site or on snow. Please DO NOT camp anywhere snow has melted, near tree wells, or where a tent site is not obvious. There is a caretaker on duty currently. A nominal $3 bivy/$5 tent fee is asked if camping at Horse Camp. Lastly, the Sierra Club Foundation manages their property under the Mt. Shasta Wilderness rules - that means dogs are not allowed on their property either. Please respect the rules. Thanks!
DOGS ARE NOT ALLOWED IN THE MT. SHASTA WILDERNESS OR WITHIN THE SIERRA CLUB PROPERTY BOUNDARIES (HORSE CAMP).
THANK YOU and see you on the mountain!
The Mt Shasta Climbing Rangers
Nick, Forrest, Andrew and Paul