Peak Experiences Winter 2017-2018
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National Park Service U.S. Department of the Interior Lassen Volcanic National Park Peak Experiences November 2017 - May 2018 Speaking of Forecasting Water from Snow the Weather Four times a year, hydrographer Ted Baker plunges a unlikely liberal arts professor established the first tube up to 35 feet long into the Lassen Peak snowpack. weather observatory on nearby Mt. Rose. The station, We are all affected by weather, Baker is the latest in a long line of surveyors who have perched between Reno and Lake Tahoe, served as an which makes it a great topic for been measuring and recording snow depth and water outdoor laboratory to study snow in all of its phases. conversation. My wife and I discuss the weather to plan our weekends— content in Lassen Volcanic National Park since 1930. bicycle ride or Sunday drive? We The resulting data exposed a link between water chat about it in park headquarters, Even in his first winter season, Baker noticed some content of snow on Mt. Rose and the spring rise of guessing when the snow will arrive or interesting variations in his 16 survey sites, known as Lake Tahoe. Church realized that by measuring the the spring thaw will begin. snow courses, located throughout the Upper Feather depth and the weight of a snow sample, he could River Watershed. Just south of Lassen Volcanic, determine the amount of water contained in the snow. It is also interesting to talk about how the Mount Dyer snow course (7,100’) provides a This information was used to end a Lake Tahoe water we experience weather. The weather good view of Lake Almanor and highlights the snow battle between local land owners and downstream recorded by monitoring stations is coverage contrast of higher and lower elevations. users by providing a forecast to inform water objective, yet our experience of it is Further south, the Four Trees snow sensor site (5,150') management practices. anything but. One visitor may see a receives significant amounts of precipitation. This summer storm at Lassen as a light rain, relatively low elevation site often provides a visible Today, Church's methods are used at more than 300 while another runs from the downpour. marker of the transition from snow to rain on the snow courses throughout California. The multiple landscape. snow cores taken at each site tell a story of the storms We also compare weather to previous that have come and gone. A light, powdery snow layer years or perhaps decades. To many, Lower Lassen Peak (8,250’), near Lake Helen, is reflects a cold, drier storm; while a heavy, thick snow the 2016-2017 winter at Lassen was a Baker's most challenging snow course. Multiple ice layer indicates a warmer, wetter storm. particularly wet one. Many California layers make it difficult to push the sampling tube down residents noticed the dramatic shift to the ground. His deepest snow core in 2017, taken In the winter of 2016-2017, visitors to Lassen Volcanic from five years of drought to what— on April 1, was 25 feet deep. Even with a partner, and nearby residents experienced more rain than in depending on whom you asked—was completing the ten measurements spread across the previous years. The wet weather was reflected in the or was not normal. 1,000-foot course can take anywhere from two to four density of Lassen Peak’s snowpack, which on April hours to complete, while other snow courses average 1 measured 55 percent, the highest on record for Our perceptions of weather make about 45 minutes. great conversation, but they are not the site. More than half of the 253 inches of snow the best record. Fortunately, citizens on Lassen Peak was water. If all that snow melted and scientists alike have contributed The snow survey process and equipment used by instantaneously, it would create a pool of water 134 to weather records for centuries. At Baker is similar to that designed by James E. Church inches, or about 11 feet, deep. in 1905. Known as the Father of Snow Surveying, this Lassen Volcanic, precipitation and Continued on page 5 snowpack records help determine whether last winter really was wetter than normal. Data says: yes, the Lassen Peak snow survey reported the densest snowpack on record for the site. Of course, having data doesn't mean we should stop talking about how we experience weather. Checking the weather forecast will help you plan your visit to the park this winter, however in the end—the weather will be what you make of it. Lower Lassen Peak snow course marker, February 2017 The same snow course marker, September 2017 Photos above by Ted Baker, PG&E General Information 2 Facilities & Services 4 Winter Routes 6-7 This visitor guide is made possible through Winter Adventure 3 Special Features 5 Winter Travel 8 the support of the Lassen Association. -Jim Richardson, Superintendent General Information Lassen Volcanic National Park Road Closures Pets in the Park National Park Service Lassen Volcanic National Park Highway usually Activities with pets are limited at Lassen. Pets must U.S. Department of the Interior closes by mid-November for the winter season due be restrained at all times and are not permitted in to snow. Butte Lake, Warner Valley, and Juniper the park backcountry (including over snow), or Lake roads close to vehicle traffic for the season due inside visitor centers or other facilities. Vast public to snow around late October and usually reopen in lands nearby offer outdoor opportunities with pets. Visitors are encouraged to late June or early July. Plowing on the park highway Email us for more information. contact the park via email during usually begins in early April and continues through the winter season. Recorded late June. See more about spring road clearing on information is available by phone. Winter Safety page 8. Winter adventure at Lassen involves risk. Sled with Email Address caution; sledding is the number one cause of Learn more [email protected] Lost & Found visitor injury in the winter season. about how to prepare for a safe winter visit below. The park’s lost and found is located in the Kohm Website Yah-mah-nee Visitor Center. Please call (530) 595- www.nps.gov/lavo 4480. Accessibility The 24-hour vestibule in the Kohm Yah-mah-nee Information Line Gasoline Visitor Center and its restrooms are wheelchair- Phone: (530) 595-4480 accessible. The Loomis Ranger Station and Fax: (530) 595-6139 There is no fuel in the park during the winter season. The nearest gas station from the southwest restrooms in the Loomis Plaza are also wheelchair- accessible. Mailing Address entrance is in Chester, 30 miles east on SR-36. Lassen Volcanic National Park The nearest gas stations from the Manzanita Lake P.O. Box 100 entrance are in Shingletown, 17 miles west on Weather Mineral, CA 96063-0100 SR-44, or in Old Station, 13 miles east on SR-44. With elevations from 5,650 feet to 10,457 feet, a wide variety of weather conditions occur in Lassen Social Media Food Volcanic. Expect a 5° temperature decrease for www.facebook.com/LassenNPS Lassen Café is open on limited hours on weekends every 1,000 foot increase in elevation. Prepare for www.youtube.com/LassenNPS and selected holidays only. See page 4 for more your visit; bring layered clothing, snow boots, a hat www.twitter.com/LassenNPS information. The nearest areas for food and supplies and gloves. www.flickr.com/LassenNPS are Mineral, Chester, Shingletown, and Old Station (see above for distances). Manzanita Lake Average Temperatures (5,850 ft) Phones Month High/Low Month High/Low Cell phone coverage in the park is spotty. An November 56/21 oF February 51/13 oF emergency phone is located in the 24-hour vestibule December 50/14 oF March 53/16 oF of the Kohm Yah-mah-nee Visitor Center (911 only). January 50/13 oF April 61/23 oF Hydrothermal Areas Sulphur Works is accessible to visitors Entrance Fees year-round (snow travel required). For Entrance fees are required year-round. The 1-7 day Camping your safety, do not travel or camp near vehicle fee is $10 between December 1 and April 15. The Southwest Campground is open year-round. hydrothermal areas. The snow in these This fee changes to $25 between April 16 and Nov Fires and fire pans are not permitted in the winter, areas can look solid but may actually be 30. Display your fee receipt, Lassen Annual pass, or however self-contained barbecues are allowed in a weak snow layer hiding pools of acidic Interagency Pass on your vehicle’s dashboard. the paved parking area. The fee for snow camping boiling water. Walking too close to these or camping in a vehicle is $10 per night. Overnight areas has resulted in severe injuries for Firearms vehicles must park between islands to allow for previous visitors. Visitors are responsible for understanding and snow plowing operations. Please self-register at the complying with all applicable State of California, entrance station. Wilderness permits are required Emergencies local, and federal firearms laws. Federal law for backcountry camping. If you have an emergency call 911. If phone prohibits firearms in certain facilities in this park service is not available, contact a park identified by posted signs at public entrances. For Snowmobiling employee, go to the Loomis Ranger Station, more information, visit oag.ca.gov/firearms or Snowmobiling is not permitted anywhere within the or use the emergency phone in the 24-hour contact the chief park ranger at (530) 595-6100.