Sponsored by the Grand Teton Association's Jenny Lake Rangers Fund
Content contributions made by the Jenny Lake Climbing Rangers

September 20th, Snow in the high country

A recent storm system has deposited snow above the 9,000 foot level. Clear skies and warmer temperatures over the weekend have melted much of the snow, but expect snow and ice to linger for quite some time above 10,000 feet, especially in shaded areas.



The Jenny Lake Ranger Station is closed for the season. Backcountry camping permits can be obtained at the Craig Thomas Discovery and Visitor Center in Moose or the Colter Bay Visitor Center in Colter Bay. Call 307-739-3309 for more information.

As we move into fall, climbers and hikers should be prepared to deal with changing conditions, including:

·         Snow, ice and verglas in shaded areas, especially on north and west aspects above 11,000 feet

·         Freezing overnight temperatures. On average, temperatures drop 3 degrees for every 1,000 feet of elevation gain.

·         Shorter days- usable light until 7:30-8:00 pm.

·         Rescue operations can be limited by reduced staffing, severe weather and limited helicopter use. Consider your climbing objectives carefully and be prepared for self-rescue.    

Specific route condition updates will be limited as we transition to fall and staffing is reduced. This HOMPAGE will continue to provide significant updates on general conditions throughout the winter.  


Late summer conditions. August 31, 2015

Late August and early September can produce a variety of weather patterns compounded by shorter, cooler days. Conditions may be dry today, winter tomorrow, dry by the end of the week. This is a condition report that you should expect to hear until we move into a more predictable weather pattern. Climbers should expect that the likelihood to encounter afternoon storms in the Tetons to be fairly high. These storms can create and maintain alpine conditions like snow, ice and verglas. Remember that rockfall hazard increases with precipitation. Keep an eye to the sky, stay mindful that conditions are constantly changing up high and come prepared for anything.  Groups of over 3 climbers will take quite a bit longer for an ascent and could put the group in jeopardy of being caught in an afternoon storm, please plan your route options carefully. Be prepared for cold ascents in the morning hours.

The Jenny Lake Ranger Station is
Backcountry camping permits are required year-round for all overnight trips into the backcountry of Grand Teton National Park. Permits are free and can be obtained year-round at the Craig Thomas Discovery & Visitor Center in Moose and during the summer months at the Colter Bay Visitor Center and Jenny Lake Ranger Station. Detailed information can be found in the links on the right.

All route condition information has been removed from this site for the winter season, however, the HOME PAGE will continue to provide periodic updates on general conditions in the Teton Range throughout the winter.

~The Jenny Lake Climbing Rangers