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Content provided by the Jenny Lake Climbing Rangers

MONSOON MOISTURE & CONTINUED SNOW RETREAT - July 18, 2014

The past couple weeks in the Tetons have been characterized by the establishment of a monsoonal weather pattern with frequent and sometimes severe thunderstorms battering the range.  Significant rockfall has occurred as a result of these intense precipitation events in the Stettner Couloir and on the approach to the Upper Saddle on the Grand Teton, as well as in the West Hourglass Couloir on Nez Perce.  Pay special attention when traveling in or under these types of couloirs after heavy rainfall events!

The snowpack continues to recede, however, significant snow still remains at mid elevations and on mountain passes.  The Meadows in Garnet Canyon, for example, is still almost completely snow-covered and none of the bear boxes have melted out yet, and Paintbrush Divide remains guarded by firm, steep snow on the east side.  Please be careful when venturing out onto these slopes!

The Meadows in Garnet Canyon is completely covered in snow - 7/17/14
Upper Paintbrush Canyon & Divide - 7/12/14

HEAT WAVE IN THE TETONS - July 6, 2014

With daytime highs in the upper 80s in the valley and overnight lows near 50F at 10,000', the snow is melting fast.  8-9000' is a rough elevation band for encountering continuous snow, particularly on the northern exposures and in the canyons.  Poor refreezes up high have accentuated the melting, as running water and loose unsupportable "iso-thermal" snow exists up high.  Snow on the southerly aspects and at the mid elevations remains consolidated and supportable.

Also of note - the avalanche destruction seen this spring is the most significant we've seen since '85/'86.  Numerous uprooted and downed trees obscure parts of the trails - to include Paintbrush, South and North forks of Cascade, Death, Avalanche Canyon - and others.  Although the GTNP trailcrew is hard at work clearing the trails, be prepared to momentarily lose the trail while hopping over the downed timber.

DEEP SNOW LINGERS IN THE HIGH COUNTRY - June 26, 2014

The high country above 9,000 feet is still under deep snow.  A recent patrol to Marion Lake revealed campsites still under over 10 FEET of snow!  Hikers, backpackers, and climbers should be prepared to deal with these conditions during their travels and plan on crossing extensive snow slopes, camping on snow, and approaching and descending steep snow when climbing alpine rock routes.  Please stop in and see us at the Jenny Lake Ranger Station to get the latest information on conditions in the Teton Range.

UPDATE - JUNE 20, 2014

A cold upper level Low pressure system mid-week dropped upwards of 10" in the highest elevations.  Wind drifts of 2-3' may be expected in the high alpine on leeward slopes with post-holing likely above 9500'.  One can expect wet and dry sluff avalanches over the next several days as temperatures warm and with direct sun.

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