Mountain Peak

Half Dome peak

Sierra Nevada, California 8,842 ft
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Range
Sierra Nevada
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Half Dome rises to 8,842 ft in Pacific-Ranges within the Sierra Nevada range.

Standing at an elevation of 8,842 feet (2,695 meters), it offers breathtaking panoramic views of Yosemite Valley and the surrounding Sierra Nevada mountains. Its distinctive shape, resembling a half-dome, is a result of glacial and erosional forces over millions of years.

During the winter season, Half Dome is often covered in snow. The snowpack range varies from year to year, depending on the overall precipitation levels. Snow can accumulate on the dome, making it more challenging to climb and requiring specialized mountaineering equipment. As spring arrives and temperatures rise, the snow melts, creating cascades and waterfalls that flow into nearby creeks and rivers. Some of these include Tenaya Creek, Merced River, and Illilouette Creek, which receive runoff from Half Dome and contribute to the park's diverse ecosystem.

The name "Half Dome" originated from its unique shape, first coined by Josiah Whitney during the California Geological Survey in 1865. The native Ahwahneechee people also have legends and stories associated with the formation. According to one myth, the creator of the world, known as Ah-wah-nee, used an obsidian blade to shape the rock into its distinctive form. Today, Half Dome remains a popular destination for hikers and climbers, attracting adventurers from around the world who seek the challenge and beauty this iconic mountain offers.

For trail conditions and access, search Wikipedia or the local land manager's site. Browse other peaks in the Pacific-Ranges range.

StateCALIFORNIA
RangeSierra Nevada
Elevation8,842 ft
Latitude37.7461°
Longitude-119.5320°
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Regional snowpack

Snowpack near Half Dome

Snow water equivalent and snowpack depth at SNOTEL stations near the peak. Best proxy for what's currently sitting on the summit.

Regional streamflow

Streamflow near Half Dome

USGS streamgauges in the basin drained by this peak. Spring snowmelt from the summit feeds these flows.

Detailed forecast

Plan around incoming weather

Same NOAA / yr.no feed Snoflo's iOS app uses. Watch the precipitation column -- snow at this elevation typically lags the radar signature by a few hours.

Hourly detail

Next 5 days, hour by hour

Temperature line with weather symbols on top, snow + rain accumulation as columns, humidity as a dotted line.

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Deep dive

5-day forecast table

Every 3 hours, broken out across temperature, snow, rain, humidity, and wind.

TimeConditionTemp (°F)Snow (in)Rain (in)Humidity (%)Wind (mps)Wind dir
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Long-term outlook

15-day forecast

Daily temperatures, snow, and rain projected over the next two weeks.

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Get Half Dome on your phone.

Save this peak as a favorite and get push alerts when storms move in, fresh snow falls upstream, or NWS issues a weather warning. Free, account optional.

Snoflo app icon
QR code -- scan with your iPhone to install Snoflo

Scan to install Look for this on your home screen

Snoflo Premium

Favorites and custom weather alerts are part of Snoflo Premium. Save peaks, set snowfall or wind thresholds, and get push alerts when conditions cross.

Set up an alert

Custom alerts are configured in the Snoflo iOS app. Open the app, navigate to this peak, and tap the bell icon to set thresholds for snowfall, temperature, or wind.

{# FAVORITE-LIMIT MODAL — fires when a non-premium user hits the 3-favorite cap. Mirrors the iOS PremiumGateSheet's .bookmarkLimit case: same copy direction (limit reached → unlimited with Premium), same primary CTA shape. Triggered from toggle_fave (pre-flight) and the 403 error handler. #} {# ALERTS-IN-APP MODAL — opened from the Account dropdown's "Alerts" link. Push-notification alerts (snow / flow / buoy / ski) are managed in the iOS app because they require APNs + device tokens; the webapp has no equivalent surface, so the right thing to do is point users at the App Store. Mirrors the per-gauge #sf-cp-alerts-modal popup on recChildFlow.html. #}