South Notch
Peak · 11,266 ft · Yosemite corridor
South Notch, an 11,266 ft peak in the Yosemite corridor of the Sierra Nevada, sits exposed on the high backbone between Tioga Pass and Mono Basin. Winter and spring conditions dominate; summer crowds remain sparse.
Wind dominates South Notch; the 30-day average is 12 mph with gusts to 33 mph common. Afternoon thermals and funnel effects off the basin intensify by midday. Early morning offers the calmest window. Expect rapid temperature swings across the 8 to 33 degree annual range; snowpack persists into late spring.
The last 30 days averaged 34 on the NoGo Score, with temperatures holding near 22 degrees and wind at 12 mph average. The week ahead tracks the shoulder season pattern: increasing afternoon wind, variable snow stability on north-facing slopes, and low crowding due to late-spring snowpack still blocking full access. Check avalanche bulletins from the Sierra Avalanche Center before any approach.
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About South Notch
South Notch sits on the high crest east of Tioga Lake in the Yosemite corridor, accessed via Highway 120 from the west (Lee Vining approach) or via Highway 395 from the east. The peak lies at 11,266 feet, part of the exposed Sierra crest that divides the Mono Basin from the high country draining toward Yosemite Valley. Most approaches require 4-wheel-drive or high-clearance vehicles to reach trailheads; winter and spring closures on Highway 120 can isolate the western approaches. Summer access via Tioga Pass is the primary route, though snowpack and avalanche terrain constrain safe passage through April and May.
Conditions at South Notch are dictated by exposure and elevation. The 30-day average wind of 12 mph masks afternoon surges to 33 mph, driven by thermal pumping from the Mono Basin below. Temperatures average 22 degrees over the last 30 days but swing between 8 degrees (winter lows) and 33 degrees (late-spring highs). Snowpack dominates October through May; north-facing slopes hold avalanche terrain and instability risk through spring. Crowding averages 3 out of 10 because access is restricted by snow, weather, and remoteness. The peak is best visited by winter mountaineers and spring ski-tourers willing to assess snowpack and wind stability themselves.
South Notch suits experienced winter climbers and spring backcountry skiers comfortable with avalanche terrain, navigation in whiteout conditions, and self-rescue. Day trips from the Highway 395 corridor (Lee Vining) or the Tioga Pass gateway are common when Highway 120 is open. Parking is minimal and often snow-buried. The NoGo Score of 34 (on a 100-point scale where higher is worse) reflects persistent wind and cold; expect conditions to deteriorate by afternoon. Bring avalanche rescue gear and a shovel; consult the Sierra Avalanche Center advisory before departure. Turnaround times are short in summer due to afternoon thunderstorm risk and wind, even shorter in winter because darkness comes early.
Nearby alternatives include Mono Pass (lower, more accessible, less avalanche terrain), Mount Dana (11,387 ft, similar elevation and exposure but slightly more sheltered), and the Cathedral Range peaks west of Tenaya Lake. South Notch differs from these by being the easternmost high point of the crest in this sector, which exposes it more directly to Mono Basin wind and makes it a logical waypoint for traverse routes linking Tioga Pass to the Yosemite high country. Spring conditions here are typically snowier and windier than Yosemite Valley at the same time, so plan accordingly and check conditions before committing.