Obs Date Observer Region Location Avalanches? Instability?
February 1, 2023 Forecaster Bishop Creek Bishop Creek - Alpine Conditions
February 1, 2023 Key Observer June Lake June Mountain BC Surface and Weather Conditions
February 1, 2023 Key Observer Mammoth Lakes Lee Vining Area
February 1, 2023 Key Observer Lee Vining Mt. Gilcrest Some recent snow on firm wind board Yes
January 31, 2023 Key Observer June Lake Northern San Joaquin Ridge Wind Transported Snow and Loose Dry Avalanches Yes
January 31, 2023 Public June Lake Dream bowl upper slope Yes
January 31, 2023 Forecaster Bishop Creek Bishop Creek - Small Sluffs and Thoughts About The Future Yes Yes
January 31, 2023 Public Convict Creek Increasing Wind Affect on Tobacco Flats Morraine Yes
January 30, 2023 Public Convict Creek Dust on Crust in Convict
January 30, 2023 Forecaster Mammoth Lakes Mammoth Lakes Basin - Sluffs and Soft Wind Slabs Yes Yes
January 30, 2023 Public Mammoth Lakes Mammoth Rock Area
January 30, 2023 Public McGee Creek N aspect trees below Red Mountain
January 29, 2023 Forecaster June Lake Chicken wing- minimal new snow, wind transport Yes
January 29, 2023 Key Observer Mammoth Lakes Punta Bardini Weather Observations
January 28, 2023 Key Observer Mammoth Lakes Sherwin Creek Snowpack and Weather Observation
January 28, 2023 Forecaster Mammoth Lakes Sherwin Ridge - Variable surface conditions, Near surface faceting
January 28, 2023 Public Bishop Creek SE Face of Mt Locke Yes
January 28, 2023 Forecaster Bishop Creek Bishop Creek - Variable Surfaces, Weak Facets
January 27, 2023 Forecaster Convict Creek Weak snow above treeline on Mt. Aggie
January 27, 2023 Key Observer Mammoth Lakes Mammoth Lakes Basin Surface Faceting, Surface Hoar and Surface Warming
January 27, 2023 Key Observer Mammoth Lakes Crystal Lake Chute Cornice Failure
January 26, 2023 Key Observer Mammoth Lakes Sherwin Creek Surface Crust, Surface Facets and Surface Hoar
January 26, 2023 Public Bishop Creek Grass Lake Trail
January 26, 2023 Public June Lake Carson Peak
January 26, 2023 Forecaster Mammoth Lakes Mammoth Lakes Basin - Sastrugi and Surface Faceting Yes
January 24, 2023 Public Convict Creek Convict Lake/Laurel Mountain/Mildred Lake
January 24, 2023 Public Rock Creek North face of Red Mountain
January 24, 2023 Forecaster Bishop Creek Bishop Creek - Facets and Crusts Yes
January 24, 2023 Public Bishop Creek South Lake Yes
January 23, 2023 Public Mammoth Lakes Significant flagging with variable directions south and north of Mammoth Mtn
January 22, 2023 Public Convict Creek Laurel Mountain
January 22, 2023 Public Convict Creek Changing Snowpack in Convict
January 22, 2023 Forecaster June Lake June BC - Low visablity and wind transport Yes Yes
January 22, 2023 Public Mammoth Lakes NE-NW Sheltered Aspects in The Sherwin's (7900-9850')
January 22, 2023 Public Pine Creek Elderberry Canyon, Mt. Tom
January 22, 2023 Key Observer Mammoth Lakes Sherwin Ridge
January 21, 2023 Public Mammoth Lakes Hammil Zone / Cold Water Creek Yes Yes
January 21, 2023 Public Lee Vining Mt Gibbs, East Face
January 21, 2023 Public Lundy Canyon Pogonip to powder to sastrugi on Mt Warren Yes
January 21, 2023 Public Mammoth Lakes Mammoth Rock
January 21, 2023 Key Observer Mammoth Lakes Main Avalanche Path
January 20, 2023 Forecaster Mammoth Lakes San Joaquin Ridge - Desperately Seeking Soft Slabs Yes
January 20, 2023 Public Lone Pine Tuttle Creek - Mt. Langley
January 20, 2023 Public Bishop Creek Habeggers Glades snow pit location
January 19, 2023 Forecaster June Lake Chicken Wing - Small Sensitive Wind Slabs Yes Yes
January 19, 2023 Public Big Pine Creek One of the NE gullies on kid mountain
January 19, 2023 Public June Lake N Facing Slope 8100ft
January 18, 2023 Forecaster Mammoth Lakes Sherwins - Recent Avalanches, Surfaces, Upper Snowpack Yes Yes
January 18, 2023 Public Convict Creek Convict Lake - Mono Jim and McGee Yes
January 18, 2023 Public Rock Creek Position is where I took picture, avalanche was to south, across from drainage.
January 17, 2023 Forecaster June Lake June Lake BC- recent avalanche activity, blowing snow Yes Yes
January 17, 2023 Forecaster Rock Creek Rock Creek Area - Blowing Snow Near Treeline
January 17, 2023 Public Bishop Creek Habeggers
January 16, 2023 Public Mammoth Lakes forest trail knoll
January 15, 2023 Public Mammoth Lakes Lower Mammoth Rock Bowl Yes
January 15, 2023 Public Rock Creek Buried Wind Slabs on Red Mountain
January 14, 2023 Public Mammoth Lakes Mammoth rock bowl Yes
January 14, 2023 Key Observer Mammoth Lakes Mammoth Lakes Basin - Reactive Storm Slabs Yes Yes
January 14, 2023 Forecaster June Lake Chicken Wing - New Snow Instability Yes Yes
January 14, 2023 Public Mammoth Lakes Northish facing slope above twin lakes.
January 14, 2023 Public Mammoth Lakes Mammoth Lakes Town Skin Yes
January 14, 2023 Forecaster Mammoth Lakes Mammoth Area - Reconsidering "Safe" Terrain Yes Yes
January 13, 2023 Public Rock Creek Rock Creek Sno-Park
January 14, 2023 Public June Lake June Lake Area - 8,300 ft elevation trees Yes
January 14, 2023 Public Mammoth Lakes Mammoth Knolls Yes
January 13, 2023 Forecaster June Lake June Lake Area - Increasing Winds Yes Yes
January 12, 2023 Forecaster McGee Creek McGee Mountain- Natural avalanche activity Yes
January 12, 2023 Public Convict Creek Mono Jim North Face Yes
January 12, 2023 Forecaster Bishop Creek Aspendell Avalanche - Preliminary Report Yes
January 12, 2023 Key Observer Lee Vining Good stability on ENE face of Copper Mountain after the storm
January 12, 2023 Public Mammoth Lakes Blue Crag Zone Yes
January 12, 2023 Key Observer Lee Vining Historic sized avalanche near Dechambeau Creek
January 12, 2023 Public McGee Creek Mt McGee - Trailer Park Gull
January 12, 2023 Public Lundy Canyon Natural avalanche activity on Copper Mountain Yes
January 11, 2023 Public McGee Creek McGee east facing gullies. Yes
January 11, 2023 Forecaster Mammoth Lakes Panorama dome Yes Yes
January 11, 2023 Forecaster Mammoth Lakes Mammoth Area- Natural avalanche activity Yes
January 11, 2023 Forecaster Mammoth Lakes Tobacco Flat - post storm assessment Yes
January 11, 2023 Public Mammoth Lakes Sherwins
January 11, 2023 Public Mammoth Lakes Sherwin ridge
January 11, 2023 Public Bishop Creek Jawbone / Aspendell
January 11, 2023 Forecaster Pine Creek Pine Creek Area - Recent Avalanches Yes
January 10, 2023 Public Bishop Creek Aspendell - Large natural avalanche Yes
January 7, 2023 Public Rock Creek Rock Creek near Pine Grove CG Yes
January 10, 2023 Public Bishop Creek Aspendell area - Large Natural Avalanche
January 10, 2023 Public Bishop Creek South Fork/Habegger's
January 9, 2023 Public Bishop Creek South Fork/Habegger's
January 8, 2023 Public McGee Creek Red Mountain
January 8, 2023 Forecaster Mammoth Lakes Mammoth Lakes area - Deep Snowpack
January 8, 2023 Key Observer Lee Vining Lundy Previous and current wind loading
January 8, 2023 Public Rock Creek Red mtn Yes
January 8, 2023 Public Bishop Creek South Lake Rd, Four Jeffrey Campground (approximate) Yes
January 6, 2023 Public June Lake June Mountain Backcountry - Avalanche Observations Yes
January 6, 2023 Forecaster Mammoth Lakes Red Cone - Recent Avalanches and Stubborn Wind Slabs Yes Yes
January 6, 2023 Forecaster Mammoth Lakes Natural Avalanche activity- Mammoth to Mcgee Yes
January 6, 2023 Public Bishop Creek Bishop Bowl
January 6, 2023 Public Bishop Creek Habegger Glades
January 6, 2023 Public Bishop Creek Bishop Bowl
January 6, 2023 Public McGee Creek McGee Yes
January 5, 2023 Public Big Pine Creek Birch Lake Trail
January 4, 2023 Forecaster Mammoth Lakes Sherwins - Snowpack Obs
January 3, 2023 Public Mammoth Lakes East Red Cone
January 3, 2023 Public McGee Creek Red Mountain, north shoulder
January 3, 2023 Key Observer Mammoth Lakes Hemlocks/Steep Trees
January 3, 2023 Key Observer Mammoth Lakes June BC Yes
January 3, 2023 Public Bishop Creek Bardini Canyon Yes
January 3, 2023 Public Mammoth Lakes Earthquake Dome
January 3, 2023 Public Mammoth Lakes No Name Peak Wind Transport
January 2, 2023 Forecaster Mammoth Lakes Punta Bardini SE aspect- Natural Avalanche activity Yes
January 2, 2023 Forecaster Lee Vining 395 June Lake to Lee Vining - Avalanche Obs (Photos) Yes
January 2, 2023 Key Observer Mammoth Lakes Mammoth Lakes Basin Wind Transport and Natural Avalanche Yes
January 2, 2023 Key Observer Mammoth Lakes Pointe du Bardin
January 2, 2023 Key Observer Lee Vining Wind Loading and Rain Penetration Lee Vining Canyon Yes
January 2, 2023 Public Bishop Creek Table Mtn, North Face Yes
January 2, 2023 Forecaster Bishop Creek Bishop Creek - Recent Avalanches, Cracking Wind Slabs Yes Yes
January 2, 2023 Public Bishop Creek Bardini Canyon on Table Mountain Yes
January 2, 2023 Public June Lake June loop road
January 1, 2023 Public McGee Creek NE Aspect of McGee Yes
January 2, 2023 Public Mammoth Lakes East Face of laurel Yes
January 1, 2023 Public Bishop Creek South lake road
January 1, 2023 Forecaster Rock Creek Red Mountain - Natural Avalanches, Soft Wind Slabs, Wet Basal Facets Yes Yes
January 1, 2023 Key Observer Mammoth Lakes Natural Wind Slab Avalanches on SE Aspect Yes Yes
January 1, 2023 Key Observer Lee Vining Drainage above Mono Lake Snow Conditions Yes
January 1, 2023 Key Observer Mammoth Lakes Mammoth Knolls
January 1, 2023 Public June Lake June Mountain Yes
December 31, 2022 Public Bishop Creek Lake Sabrina x North lake intersection nw facing slope
December 31, 2022 Key Observer Mammoth Lakes Mammoth Lakes Basin Snowpack and Weather Obs
December 30, 2022 Forecaster Mammoth Lakes Lakes Basin - Deteriorating stability, avalanche activity Yes Yes
December 29, 2022 Public Mammoth Lakes P4 (Mammoth Mountain) Yes Yes
December 28, 2022 Public Bridgeport East Slope avalanches, Aspendell Yes
December 28, 2022 Public Bishop Creek Avalanche S Fork Rd Yes
December 28, 2022 Key Observer Mammoth Lakes Mammoth Crest Persistent Slab Crowns Yes
December 29, 2022 Public Mammoth Lakes Punta Bardini
December 29, 2022 Public Mammoth Lakes Sherwins
December 28, 2022 Forecaster McGee Creek McGee to Lee Vining -Natural avalanche activity along the 395 corridor Yes
December 28, 2022 Forecaster Mammoth Lakes Lakes Basin - wind slab avalanche activity Yes
December 28, 2022 Public June Lake Chicken Wing
December 28, 2022 Key Observer Mammoth Lakes Mammoth Lakes Basin Yes Yes
December 28, 2022 Key Observer Mammoth Lakes Unsupported Panel of Ship's Prow Yes Yes
December 28, 2022 Key Observer Mammoth Lakes Sherwin Ridge Toe Yes Yes
December 28, 2022 Key Observer Mammoth Lakes Hole in the Wall Area Yes Yes
December 28, 2022 Public Rock Creek Rock Creek Road (1-1.5mi past gate/snow park/seasonal closure) Yes
December 28, 2022 Key Observer Mammoth Lakes Mill City Snowpack and Avalanche Obs Yes Yes
December 28, 2022 Forecaster Bishop Creek Bishop Bowl - Wind And Wain Cwust Yes Yes
December 28, 2022 Public June Lake Chicken Wing
December 28, 2022 Public Bishop Creek Aspendell Yes
December 27, 2022 Forecaster Convict Creek McGee Creek to Tobacco Flat Yes
December 27, 2022 Key Observer Mammoth Lakes Pano Dome
December 26, 2022 Key Observer Mammoth Lakes Reds Lake Shoulder
December 26, 2022 Forecaster Lee Vining Lee Vining Canyon - Wet Snow And Pre-Storm Conditions
December 25, 2022 Public June Lake Mt. Downs Yes
December 25, 2022 Forecaster Rock Creek Rock Creek - Surfaces, Snowpack, And Warming Before The Storm
December 24, 2022 Forecaster Bishop Creek Bardini Canyon - Old Avalanche
December 24, 2022 Key Observer Mammoth Lakes Upper TJ Bowl Approach
December 24, 2022 Forecaster Mammoth Lakes Sherwin ridge - warming surface snow
December 23, 2022 Public Mammoth Lakes Sherwin Ridge-Surface conditions
December 22, 2022 Forecaster June Lake San Joaquin Ridge - clouds and warming
December 23, 2022 Forecaster Bishop Creek Bishop Bowl - thin coverage
December 23, 2022 Forecaster Mammoth Lakes Convict area - variable surface conditions
December 22, 2022 Key Observer Lee Vining Yost Meadow
December 21, 2022 Forecaster Rock Creek Rock Creek - Wind Transport Above Treeline Yes
December 21, 2022 Key Observer Mammoth Lakes NE Face Mt. Lewis
December 21, 2022 Forecaster Mammoth Lakes Mammoth Lakes Basin - Improving Test Results
December 21, 2022 Public Bishop Creek Table Mtn, North Face
December 20, 2022 Forecaster Lundy Canyon Lundy Canyon - Whoosh Yes
December 19, 2022 Forecaster Rock Creek Rock Creek - It's Not Dead Yet! Yes
December 19, 2022 Key Observer Rock Creek Wheeler Crest/Witcher Canyon
December 18, 2022 Public Big Pine Creek North face of Kidd Mtn Yes
December 18, 2022 Public Mammoth Lakes Mammoth basin
December 18, 2022 Forecaster Lee Vining V bowl/ East peak - Weak structure, wind transport
December 18, 2022 Public Mammoth Lakes Mammoth / Lakes Basin / Ridge up to Red Cone
December 18, 2022 Forecaster McGee Creek McGee Mountain - Snowpack Observations
December 18, 2022 Key Observer Mammoth Lakes EQ Dome East Face Uptrack
December 18, 2022 Public June Lake Mt Downs
December 17, 2022 Forecaster June Lake San Joaquin Mountain - Snowpack Observations
December 17, 2022 Public Mammoth Lakes Mammoth Lakes Basin
December 16, 2022 Public Rock Creek Red Mountain
December 16, 2022 Public Rock Creek Wheeler Crest Yes
December 16, 2022 Key Observer Convict Creek Mono Jim and Morrison South - Small Loose Dry Slides Yes
December 15, 2022 Forecaster Mammoth Lakes Lakes Basin - Surface hoar, propagating test results
December 15, 2022 Public June Lake Mt Lewis Yes
December 14, 2022 Public Mammoth Lakes Laurel Lakes Canyon
December 15, 2022 Public Big Pine Creek Big Pine Creek N Facing slope 8600'
December 15, 2022 Public Mammoth Lakes Hollywood Chute
December 15, 2022 Public Mammoth Lakes Mammoth rock bowl
December 15, 2022 Forecaster Rock Creek Red Mountain - Red Flags Yes
December 15, 2022 Public June Lake Symphony of Whumphing near Chicken Wing Yes
December 14, 2022 Public Convict Creek Hippy Trees
December 13, 2022 Public June Lake Chicken Wing E-NE aspect Yes
December 14, 2022 Forecaster Bishop Creek Bishop Creek - Whumpf Whumpf Whumpf! Yes
December 12, 2022 Public Mammoth Lakes Sherwins
December 13, 2022 Public Virginia Creek Red Lake Trees Yes
December 13, 2022 Forecaster June Lake Chicken Wing - Propagating Test Results Yes Yes
December 13, 2022 Public McGee Creek NE Facing slope pretty near Crowley campground meadow at about 7.3k
December 13, 2022 Key Observer Convict Creek Mono Jim Peak Yes
December 12, 2022 Public June Lake June Lake Area (Snow Coverage Photos) Yes
December 12, 2022 Forecaster Bishop Creek Bishop Creek Area - wind drifted snow
December 12, 2022 Public Mammoth Lakes Lower Mammoth Rock Bowl
December 12, 2022 Forecaster Mammoth Lakes Lakes basin - Recent avalanche activity Yes Yes
December 11, 2022 Public Rock Creek Red Mountain Yes
December 12, 2022 Key Observer Convict Creek Avalanches in Convict Drainage Yes
December 11, 2022 Key Observer Lee Vining Lundy Canyon Triple Threat Yes
December 11, 2022 Forecaster Mammoth Lakes Mill city -> Panorama dome area- Signs of instability Yes Yes
December 11, 2022 Forecaster June Lake Highway 395 - Wilson Butte Yes
December 10, 2022 Key Observer Lee Vining Conway Summit Yes
December 10, 2022 Public Mammoth Lakes Twin Lakes Trees Yes
December 10, 2022 Forecaster Bishop Creek Bishop Area - Snow, Wind, And Poor Structure Yes
December 10, 2022 Public Mammoth Lakes Horseshoe trees - Deteriorating stability, avalanche activity Yes Yes
December 10, 2022 Key Observer Mammoth Lakes Twin Lakes Trees Yes Yes
December 10, 2022 Forecaster Mammoth Lakes Sherwins - Pre-Storm
December 9, 2022 Forecaster Mammoth Lakes Red Cone - Pre-Storm
December 9, 2022 Public Lee Vining V Bowl
December 7, 2022 Forecaster Rock Creek Rock Creek - Southeast Aspects Snowpack and More Wind Than Expected Yes Yes
December 7, 2022 Forecaster Virginia Creek Red Lake area- Signs of instability Yes Yes
December 6, 2022 Forecaster Mammoth Lakes Punta Bardini- signs of instability, bush wrestling Yes
December 7, 2022 Public Mammoth Lakes MMSA-Adjacent
December 7, 2022 Key Observer Mammoth Lakes Mammoth Mountain Backcountry
December 6, 2022 Forecaster Mammoth Lakes Mammoth Area
December 6, 2022 Key Observer Lundy Canyon Lundy Ridiculous Bowl Yes
December 6, 2022 Public Virginia Creek Virginia Creek/Dunderberg Area Yes
December 6, 2022 Public Mammoth Lakes Above Mammoth Rock, below the 2nd cliff band
December 6, 2022 Public Mammoth Lakes Earthquake Dome Yes Yes
December 4, 2022 Forecaster Convict Creek Aggie McGee Col - Blowing Snow and Widespread Collapses Yes
December 5, 2022 Public Mammoth Lakes Red Cone- avalanche activity Yes
December 5, 2022 Public Rock Creek 40* road cut test slope, ~9900’ Yes
December 5, 2022 Forecaster Mammoth Lakes Mammoth Lakes Basin - Whumpfing in the Deep Yes
December 5, 2022 Public Mammoth Lakes Red Cone Yes
December 4, 2022 Forecaster Mammoth Lakes Lakes Basin - Persistent Slab Avalanche Below Treeline Yes
December 4, 2022 Public Mammoth Lakes Punta Bardini Yes
December 4, 2022 Public Mammoth Lakes Tele bowls Yes
December 4, 2022 Public June Lake Chicken Winmg Yes
December 2, 2022 Public Mammoth Lakes Smugglers
December 2, 2022 Public Mammoth Lakes Old Growth, Skiers R Tele Bowl Yes
December 2, 2022 Public McGee Creek East Face of McGee Moutain Yes
December 2, 2022 Public Mammoth Lakes Punta Bardini Yes
December 2, 2022 Forecaster Mammoth Lakes Mammoth Rock area - Snowpack Red Flags Yes Yes
December 2, 2022 Public June Lake Mt Kransat Yes
December 2, 2022 Public Mammoth Lakes Top of Mammoth Rock Bowl
November 29, 2022 Forecaster Mammoth Lakes Mammoth Lakes area - Near Surface Facets
November 29, 2022 Forecaster Bishop Creek Bishop Creek - Not A Good Base Yes
November 28, 2022 Forecaster Convict Creek Mt. Aggie - Strong Winds
November 27, 2022 Forecaster Virginia Creek Virginia Lakes - SW Winds and Near Surface Facets
November 26, 2022 Forecaster Mammoth Lakes Mammoth Lakes Basin - Variable surface conditions
November 23, 2022 Forecaster Rock Creek Rock Creek - Do You Like Sugar? Yes
November 22, 2022 Forecaster McGee Creek McGee Creek and Bishop area - Roadside Condition Photos
November 21, 2022 Forecaster Mammoth Lakes Sherwin ridge- Faceting Shallow snowpack
November 20, 2022 Public Virginia Creek Mt olden/no name peak saddle
November 20, 2022 Forecaster Virginia Creek Virginia Lakes - Shallow Snowpack
November 18, 2022 Public June Lake White Wing
November 18, 2022 Forecaster McGee Creek McGee Mountain - Sastrugi and Facets
November 17, 2022 Forecaster Mammoth Lakes Lakes Basin - Mammoth Crest Area
November 15, 2022 Public Virginia Creek SE Aspect of Castle Peak
November 13, 2022 Public Convict Creek Convict area- thin coverage
November 11, 2022 Forecaster Mammoth Lakes Sherwin Ridge -signs of Wind transport, settlement
November 11, 2022 Public Mammoth Lakes Surface hoar in TOML
November 10, 2022 Key Observer Mammoth Lakes Punta Bardini/Sherwins
November 9, 2022 Public Mammoth Lakes Red Cone Yes
November 9, 2022 Key Observer Mammoth Lakes Falls Tract, Twin Lakes Yes
November 9, 2022 Public Mammoth Lakes Old Mammoth Road / Mammoth Rock Trailhead
November 3, 2022 Key Observer Mammoth Lakes Lakes Basin, Lake Mary