Weather and Avalanche Log
Precip and wind are taken between 4-6 a.m. and are for the previous 24 hours. Precipitation is recorded in SWE from SNOTEL and Ski Areas
SNOTEL Locations: Brackett - Bridgers; Shower - Hyalite; Lone - Big Sky; Carrot - S. Madison; Madison - W. Yellowstone; Fisher - Cooke
Ski Area SWE: Alpine - Bridger; Timber - YC
| Date | Map Thumb | Northern Areas | Southern Areas | Wind Speed | Wind Direction | Avalanche Activity | Notes |
|---|---|---|---|---|---|---|---|
| Monday 4/27/20 |  |
0.0/0" Brackett 0.0/0" Shower 0.0/0" Lone |
0.0/0" Carrot 0.0/0" Madison / 0.0/0" Fisher |
5-15 G25 | SW | ||
| Sunday 4/26/20 | 0.0/0" Brackett 0.0/0" Shower 0.0/0" Lone |
0.0/0" Carrot 0.0/0" Madison / 0.0/0" Fisher |
15 G30 | SW | Natural wet slide in Absarokas | ||
| Saturday 4/25/20 | 0.0/0" Brackett 0.0/0" Shower 0.0/0" Lone |
0.0/0" Carrot 0.0/0" Madison / 0.0/0" Fisher |
5-20 G25 | W-NW | |||
| Friday 4/24/20 |  |
0.3/2" Brackett 0.4/4" Shower 0.2/2" Timber |
0.5/4" Carrot 0.0/0" Madison / 0.0/0" Fisher |
15 G30-35 | NW-N | ||
| Thursday 4/23/20 | 0.0/0" Alpine 0.0/0" Shower 0.0/0" Timber |
0.0/0" Carrot 0.0/0" Madison / 0.0/0" Fisher |
10-20 G30-40 | W | |||
| Wednesday 4/22/20 | 0.0/0" Brackett 0.0/0" Shower 0.0/0" Lobo |
0.0/0" Carrot 0.0/0" Madison / 0.0/0" Fisher |
5-15 G25 | NW-W-SW | Natural wet slides in Bridger Range | ||
| Tuesday 4/21/20 | 0.0/0" Brackett 0.0/0" Shower 0.0/0" Timber |
0.0/0" Carrot 0.0/0" Madison / 0.0/0" Fisher |
5-15 G20 | SW-NW | Many wet loose avalanches in Beehive/Bear Basins | ||
| Monday 4/20/20 |  |
0.1/0" Brackett 0.1/1" Shower 0.0/1" Timber |
0.0/0" Carrot 0.0/0" Madison / 0.1/1" Fisher |
15-20 G30 | W-NW | Many Natural Wet Loose Avalanches in Frazier | |
| Sunday 4/19/20 | 0.1/1" Alpine 0.0/0" Shower 0.0/0" Timber |
0.0/0" Carrot 0.0/0" Madison / 0.0/0" Fisher |
5-10 G30 | W-NW | |||
| Saturday 4/18/20 | 0.0/0" Brackett 0.0/0" Shower 0.0/0" Lone |
0.0/0" Carrot 0.0/0" Madison / 0.0/0" Fisher |
5-25 G15-35 | W-SW | Natural wet loose in Beehive/Middle Basins | ||
| Friday 4/17/20 |  |
0.1/1" Brackett 0.1/1" Shower 0.0/0" Timber |
0.0/0" Carrot 0.0/0" Madison / 0.0/0" Fisher |
10-20 G30 | SW-W NW Cooke |
Skier triggered wet slab The Playground; Many natural long running new snow slides |
|
| Thursday 4/16/20 | 0.2/3" Alpine 0.5/6" Shower 0.1/2" Timber |
0.5/10" Carrot 0.1/1" Madison / 0.1/1" Fisher |
5-15 G30 | NW-E | Natural and skier triggered loose snow slides at Bridger | ||
| Wednesday 4/15/20 |  |
0.6/8" Alpine 0.3/4" Shower 0.5/6" Timber |
0.2/2" Carrot 0.1/1" Madison / 0.2/2" Fisher |
10-15 G30 | NW-W | New Snow Avalanches Bridger Range | |
| Tuesday 4/14/20 | 0.0/0" Brackett 0.0/0" Shower 0.0/0" Timber |
0.0/0" Carrot 0.0/0" Madison / 0.0/0" Fisher |
10-20 G30-35 | NW-W | Long running skier triggered slide in new snow in Bridgers | ||
| Monday 4/13/20 |  |
0.1/1" Brackett 0.0/0" Shower 0.0/0" Timber |
0.1/1" Carrot 0.1/1" Madison / 0.0/0" Fisher |
5-15 G20-35 | NW-N | ||
| Sunday 4/12/20 | 0.9/11" Brackett 0.6/7" Shower 0.3/3" Timber |
0.4/7" Carrot 0.2/2" Madison / 0.3/3" Fisher |
5-15 G20 25 G35 Bridger |
E-NE | Snowboard triggered wind slabs in Beehive; Wind slabs, cracking and dry loose avalanches Bridgers; Small skier triggered slide on Wheeler |
||
| Saturday 4/11/20 | 0.1/0" Brackett 0.0/0" Shower 0.0/0" Timber |
0.0/0" Carrot 0.0/0" Madison / 0.2/2" Fisher |
5-15 G20 20 G35 Big Sky |
W | |||
| Friday 4/10/20 |  |
0.0/0" Alpine 0.0/0" Shower 0.0/0" Timber |
0.0/0" Carrot 0.0/0" Madison / 0.0/0" Fisher |
5-10 G20-25 | SW-NW | Natural Wet slide on Sphinx; Wet loose slides at Bridger; Cornice fall avalanche MT. Blackmore; Wet slides in southern Madison; Wet slide debris in Beehive and Dudley |
|
| Thursday 4/9/20 | 0.0/0" Alpine 0.0/0" Shower 0.0/ Timber |
0.0/0" Carrot 0.0/0" Madison / 0.0/0" Fisher |
5-15 G20-30 | NW-W | Natural wet slide on Fan Mtn.; Natural and snowmobile triggered wet slabs near Lionhead |
||
| Wednesday 4/8/20 | 0.0/0" Alpine 0.0/0" Shower 0.0/0" Timber |
0.0/0" Carrot 0.0/0" Madison / 0.0/0" Fisher |
10-15 G35-40 | W-NW | |||
| Tuesday 4/7/20 | 0.0/0" Alpine 0.0/0" Shower 0.2/1" Timber |
0.5/3" Carrot 0.5/3" Madison / 0.8/4" Fisher |
10-15 G35-45 | W-SW | Natural avalanche in Mirror Basin; Snowmobile triggered slide near Lionhead |
||
| Monday 4/6/20 |  |
0.0/0" Brackett 0.0/0" Shower 0.0/0" Timber |
0.1/1" Carrot 0.1/1" Madison / 0.1/1" Fisher |
10-20 G35 | SW | Natural small point release hit skier | |
| Sunday 4/5/20 |  |
0.0/0" Brackett 0.0/0" Shower 0.0/0" Timber |
0.1/1" Carrot 0.0/0" Madison / 0.1/1" Fisher |
15-25 G35 | S-SW | Cornice triggered wind slab at Bridger; Natural wet loose in Absarokas |
|
| Saturday 4/4/20 |  |
0.0/0" Alpine 0.0/0" Shower 0.0/0" Timber |
0.2/2" Carrot 0.3/3" Madison / 0.3/3" Fisher |
10-25 G30-45 | SW-W | Snowmobile triggered slab Portal Creek; Skier triggered thin slab in Beehive |
|
| Friday 4/3/20 |  |
0.0/0" Brackett 0.0/0" Shower 0.0/0" Lone |
0.0/0" Carrot 0.0/0" Lionhead / 0.0/0" Fisher |
5-15 | SW-NW | Large collapse near Ross Peak | |
| Thursday 4/2/20 |  |
0.1/1" Brackett 0.1/1" Shower 0.2/2" Timber |
0.2/2" Carrot 0.2/2" Madison / 0.2/2" Fisher |
5-15 G30 | E-NE | Small new snow natural in Cooke City; Multiple skier triggered slides in Bridgers; Natural slab near Cooke |
|
| Wednesday 4/1/20 |  |
0.9/10" Alpine 0.8/6" Shower 1.0/13" Timber |
0.6/5" Carrot 1.0/8" Madison / 1.0/10" Fisher |
10-20 G40 G65 in Cooke City |
W | Skier caught in large sluff at Bridger Bowl; Slope fractured, but did not slide on Buck Ridge; Multiple signs of instability above Hebgen Lake; Collapsing and natural avalanches at Quake Lake; Skier triggered small sluffs on Little Ellis; Natural avalanche on Saddle Peak |
@0600 |
| Tuesday 3/31/20 |  |
0.4/3" Alpine 0.3/3" Shower 0.4/4" Lone |
0.7/4" Carrot 1.1/8" Black Bear / 0.6/6" Fisher |
20-30 G30-60 5 G28 Bridger |
SW | @0600 |
|
| Monday 3/30/20 |  |
0.1/2" Alpine 0.0/0" Shower 0.1/1" Timber |
0.2/2" Carrot 0.1/1" Madison / 0.2/2" Fisher |
5-15 G20-30 | SW | Natural on Blackmore, North face.; Natural small slab and many wet loose in Bridgers |
|
| Sunday 3/29/20 |  |
0.1/1" Brackett 0.1/1" Shower 0.1/1" Lone |
0.1/1" Carrot 0.1/1" Madison / 0.1/1" Fisher |
5-10 G20 | W-SW | Natural cornice triggered in Maid of the Mist basin; Cornice Fall near Fairy Lake; Snowmobile triggered on Buck Ridge; Natural avalanche near Cedar Mtn. |
|
| Saturday 3/28/20 |  |
0.0/0" Brackett 0.0/0" Shower 0.1/1" Timber |
0.0/0" Carrot 0.0/0" Madison / 0.0/0" Fisher |
10-15 G15-30 | W-NW | ||
| Friday 3/27/20 |  |
0.0/0" Brackett 0.0/0" Shower 0.0/0" Lobo |
0.0/0" Carrot 0.0/0" Madison / 0.0/0" Fisher |
15-20 G25-30 | SW-W | Collapse near Ross Peak | |
| Thursday 3/26/20 |  |
0.2/2" Brackett 0.4/5" Shower 0.5/6" Timber |
0.3/3" Carrot 0.3/3" Madison / 0.4/5" Fisher |
5-10 G20 | SW-NW | Skier triggered wind slab near Cooke; Many natural and skier triggered wind slabs in N. Madison; Skier triggered avalanche near Bridger Bowl; Natural windslabs near Quake Lake; Natural and skier triggered slides in Hyalite; Skier triggered slide in Twin Falls Basin |
|
| Wednesday 3/25/20 |  |
0.7/7" Brackett 0.5/6" Shower 0.6/12" Timber |
0.4/6" Carrot 0.3/5" Madison / 0.6/10" Fisher |
10-25 G50 5 G15 in Bridger Range |
SW-W | Natural avalanches in the new snow, Bridger Range; Natural avalanches in new snow in Bridgers; Natural avalanche in Cooke |
|
| Tuesday 3/24/20 |  |
0.2/2" Alpine 0.0/0" Shower 0.1/1" Lobo |
0.2/2" Carrot 0.1/1" Madison / 0.2/2" Fisher |
10-20 G40 | W-SW | Human Triggered Soft Slab Avalanches - Mt Blackmore | |
| Monday 3/23/20 |  |
0.0/0" Bridger 0.1/1" Shower 0.1/2" Timber |
0.0/0" Carrot 0.1/1" Madison / 0.1/2" Fisher |
10-20 G35 | WSW | ||
| Sunday 3/22/20 |  |
0.0/0" Bridger 0.0/0" Shower 0.0/0" Timber |
0.0/0" Carrot 0.0/0" Madison / 0.0/0" Fisher |
5-15 G20-30 | W | Small soft slabs northern Madison range | |
| Saturday 3/21/20 |  |
0.0/0" Brackett 0.0/0" Shower 0.0/0" Lone |
0.0/0" Carrot 0.0/0" Madison / 0.0/0" Fisher |
5-15 G20-20 | W-NW | Skier triggered wind slab on Wilson Peak; Wet loose slides near Big Sky |
|
| Friday 3/20/20 |  |
0.0/0" Brackett 0.0/0" Shower 0.0/0" Lobo |
0.0/0" Carrot 0.0/0" Lionhead / 0.0/0" Fisher |
5-15 | W-SE | Skier triggered avalanche to ground on Knowles Peak; Skier triggered cornice and deep slab on Emigrant Peak |
|
| Thursday 3/19/20 |  |
0.1/1" Brackett 0.0/0" Shower 0.1/1" Lone |
0.1/1" Carrot 0.1/1" Madison / 0.5/4" Fisher |
5-10 G20 | W-N | ||
| Wednesday 3/18/20 |  |
0.0/0" Brackett 0.3/3" Shower 0.0/0" Lone |
0.1/1" Carrot 0.1/1" Madison / 0.2/2" Fisher |
10 G20 | S-SW | ||
| Tuesday 3/17/20 |  |
0.0/0" Brackett 0.0/0" Shower 0.0/0" Timber |
0.1/1" Carrot 0.1/1" Madison / 0.0/0" Fisher |
5-15 G25 | SW-W | Wet, loose avalanches, Dudley Creek | |
| Monday 3/16/20 |  |
0.2/2" Brackett 0.2/2" Shower 0.4/4" Timber |
0.4/4" Carrot 0.5/5" Madison / 0.6/6" Fisher |
0-10 G15-20 | WSW N-NE - s. Ranges |
Natural Avalanche Upper Republic Creek; Natural Wet, Loose Avalanches Bridgers; Intentionally Triggered Wind Slab - Northern Bridgers; Natural Wet Snow Avalanche, Dudley Creek; Natural avalanche north of Beehive Peak |
|
| Sunday 3/15/20 |  |
0.2/2" Brackett 0.2/2" Shower 0.5/5" Lone |
0.8/8" Carrot 1.1/9" Black Bear / 0.8/8" Fisher |
5-15 G10-30 20-30 Bridger |
S-SE E Bridger |
Snowmobiler triggred slide near Lulu Pass, Cooke City; Natural new snow slab avalanches, Cooke; Natural Cornice break and wet loose in Alex Lowe Basin; Ski Cuts - New Snow Avalanches near Hebgen Lake |
|
| Saturday 3/14/20 |  |
0.1/1" Bridger 0.0/0" Shower 0.0/0" Lone |
0.0/0" Carrot 0.0/0" Madison / 0.0/0" Fisher |
20-30 G30-50 | E-S-SW | ||
| Friday 3/13/20 |  |
0.1/1" Brackett 0.0/0" Shower 0.0/0" Lone |
0.0/0" Carrot 0.0/0" Madison / 0.0/0" Fisher |
5-15 G15-25 | SW-S E in Bridgers |
||
| Thursday 3/12/20 |  |
0.0/0" Brackett 0.5/7" Shower 0.1/1" Timber |
0.1/1" Carrot 0.0/0" Madison / 0.1/1" Fisher |
10-20 G30-45 | W-NW | Skier triggered small soft slab, Southern Madisons | |
| Wednesday 3/11/20 |  |
0.0/0" Bridger 0.0/0" Shower 0.0/0" Timber |
0.0/0" Carrot 0.0/0" Madison / 0.0/0" Fisher |
15-30 G40-50 | W-SW | ||
| Tuesday 3/10/20 |  |
0.2/3" Brackett 0.6/7" Shower 0.5/9" Lobo |
0.3/4" Carrot 0.3/3" Madison / 0.5/8" Fisher |
10-20 G35 | W NW Cooke |
Many natural and skier triggered wind slabs in Bridgers; Cornice triggered avalanche in Republic Creek, Cooke |
|
| Monday 3/9/20 |  |
0.2/2" Brackett 0.0/0" Shower 0.0/0" Lobo |
0.0/0" Carrot 0.1/1" Madison / 0.1/1" Fisher |
5-15 G25 | SW-W | ||
| Sunday 3/8/20 |  |
0.5/7" Bridger 0.4/4" Shower 0.4/4" Timber |
0.4/4" Carrot 0.5/5" Madison / 0.2/2" Fisher |
10-25; G35 Cooke | W | Natural Dry, Loose Avalanches on Blackmore; Skier triggered avalanches in the new snow on Saddle Peak; Natural Wet, Loose Avalanches Hyalite ; Skier triggered avalanches in the new snow in Middle Basin |
|
| Saturday 3/7/20 |  |
0.0/0" Brackett 0.0/0" Shower 0.0/0" Lone |
0.0/0" Carrot 0.0/0" Lionhead / 0.0/0" Fisher |
15-30 G30-50 | S-W | Natural wet loose near Cooke and Livingston; Cornice triggered avalanche north of Mt. Blackmore; Natural wet avalanches in Pine Creek, Livingston |
No freeze overnight in northern ranges. |
| Friday 3/6/20 |  |
0.0/0" Brackett 0.0/0" Shower 0.0/0" Lone |
0.0/0" Carrot 0.0/0" Madison / 0.0/0" Fisher |
10-30 G30-50 | S-W | ||
| Thursday 3/5/20 |  |
0.0/0" Brackett 0.0/0" Shower 0.0/0" Timber |
0.0/0" Carrot 0.0/0" Madison / 0.2/2" Fisher |
10-15 G30 | W | Small skier triggered wet loose slides in Bridgers; Cornice triggered wind slab near Cooke; Cracking wind slab on Skyline Ridge |
|
| Wednesday 3/4/20 |  |
0.0/0" Brackett 0.0/0" Shower 0.0/0" Timber |
0.0/0" Carrot 0.0/0" Madison / 0.0/0" Fisher |
20-40 G55 | SW | ||
| Tuesday 3/3/20 |  |
0.2/2" Bridger 0.2/2" Shower 0.1/1" Lobo |
0.2/2" Carrot 0.1/1" Madison / 0.2/3" Fisher |
15-30 G40 (G65 Hyalite) |
W-SW | ||
| Monday 3/2/20 |  |
0.0/0" Bridger 0.0/0" Shower 0.0/0" Timber |
0.0/0" Carrot 0.0/0" Madison / 0.0/0" Fisher |
15-25 G30-45 | W (SW-NW) |
Natural Cornice Collapse in 2nd Yellowmule | |
| Sunday 3/1/20 |  |
0.1/2" Bridger 0.5/5" Shower 0.2/2" Lone |
0.1/1" Carrot 0.1/2" Madison / 0.2/3" Fisher |
5-20 | NNW | ||
| Saturday 2/29/20 |  |
0.0/0" Brackett 0.0/0" Shower 0.0/0" Lone |
0.0/0" Carrot 0.0/0" Lionhead / 0.0/0" Fisher |
20-30 G40-50 | S-SW | Natural above East rosebud lake | |
| Friday 2/28/20 |  |
0.0/0" Brackett 0.0/0" Shower 0.0/0" Timber |
0.0/0" Carrot 0.0/0" Lionhead / 0.0/0" Fisher |
10-20 G30-35 | SW-NW | ||
| Thursday 2/27/20 |  |
0.0/0" Bridger 0.1/1" Shower 0.1/1" Timber |
0.1/1" Carrot 0.0/0" Madison / 0.3/3" Fisher |
10-20 G25-40 | W-NW | Big collapse at Specimen Creek; Snowcat triggered avalanche in Swan Creek; Natural small wind slab and dry loose near Cooke; Skier triggered small slab and natural loose on Black Mtn. Absaroka; Cornice triggered avalanche on Ramshorn Peak |
|
| Wednesday 2/26/20 |  |
0.1/1" Brackett 0.1/1" Shower 0.0/0" Timber |
0.0/0" Carrot 0.0/0" Madison / 0.0/0" Fisher |
15-20 G35 | W-NW | Cornice triggered avalanche in Hourglass, Bridgers; Natural avalanche in Divide Cirque |
|
| Tuesday 2/25/20 |  |
1.0/15" Bridger 1.0/20" Shower 0.4/7" Timber |
0.1/1" Carrot 0.0/0" Madison / 0.1/2" Fisher |
10-15 G30 | W Northern Ranges NW-N Southern Ranges |
Small natural and snowmobile triggered windslabs near Cooke City | |
| Monday 2/24/20 |  |
0.2/2" Brackett 0.3/3" Shower 0.2/3" Lone |
0.0/0" Carrot 0.1/1" Madison / 0.3/3" Fisher |
15-25 G30-50 | W-NW | Snowmobile Triggered Avalanche in the Gravelly Range | |
| Sunday 2/23/20 |  |
0.0/0" Bridger 0.0/0" Shower 0.0/0" Lone |
0.0/0" Carrot 0.0/0" Madison / 0.0/0" Fisher |
5-25 G20-30 | W-SW NW Cooke |
||
| Saturday 2/22/20 |  |
0.0/0" Bridger 0.0/0" Shower 0.0/0" Lone |
0.0/0" Carrot 0.0/0" Madison / 0.0/0" Fisher |
10-20 G30-40 | W-SW | Snowmobile triggered on Scotch Bonnet, Cooke City; Small natural wet loose and wind slab in S. Gallatins; Natural avalanche on Sphinx |
|
| Friday 2/21/20 |  |
0.0/0" Brackett 0.0/0" Shower 0.0/0" Lone |
0.0/0" Carrot 0.0/0" Madison / 0.0/0" Fisher |
10-20 G25-35 | W-S | Natural on Wolverine Peak Cooke City; Snowmobile triggered small slope Lionhead |
|
| Thursday 2/20/20 |  |
0.0/0" Brackett 0.0/0" Shower 0.0/0" Timber |
0.0/0" Carrot 0.0/0" Madison / 0.0/0" Fisher |
10-20 | W-S N in Cooke |
Skier triggered thin slab in Bridgers; Skier triggered slab near Cooke |
|
| Wednesday 2/19/20 |  |
0.1/2" Brackett 0.1/1" Shower 0.0/0" Timber |
0.0/0" Carrot 0.0/0" Madison / 0.1/2" Fisher |
5-10 G20 | W-N | ||
| Tuesday 2/18/20 |  |
0.3/9" Bridger 0.3/5" Shower 0.2/3" Lobo |
0.2/3" Carrot 0.0/0" Madison / 0.0/0" Fisher |
5-10 G20 | W-SW | Snowmobiler triggered small avalanche near Goose Lake; Natural Avalanches, Wilson Peak; Naturals near Flathead Pass; Natural Avalanche in Absarokas; Natural avalanche Pine Creek; Naturals in Storm Castle Creek |
|
| Monday 2/17/20 |  |
0.3/4" Brackett 0.2/2" Shower 0.1/2" Timber |
0.2/3" Carrot 0.1/2" Madison / 0.3/3" Fisher |
15 G20-40 | W-NW | Sledder triggered on Buck Ridge | |
| Sunday 2/16/20 |  |
0.2/4" Brackett 0.2/4" Shower 0.3/9" Timber |
0.2/4" Carrot 0.3/4" Madison / 0.3/4" Fisher |
10-20 G 35 | W-SW | Natural avalanche on Chestnut Mountain, N. Gallatins; Wolverine Bowl natural avalanche, Bridgers; Shooting cracks on Mt Blackmore; Natural Avalanche Mill Creek, Absarokas; Collapsing/Whumphing at Bear Canyon; Big Deep Slabs in Maid of the Mist, Hyalite; Many large, destructive slides on Emigrant Peak |
|
| Saturday 2/15/20 |  |
0.6/6" Bridger 0.3/5" Shower 0.2/3" Timber |
0.4/5" Carrot 0.0/0" Madison / 0.4/7" Fisher |
10-25 G30-40 G53 Hyalite |
SW-W | Collapsing and cracking in the southern Gallatins; Snowbiker triggered slide in Taylor's Fork; Many natural avalanches on Mt Blackmore; Collapsing and Cracking on Black Mtn, N Madison; Big natural avalanches on Flathead Pass |
|
| Friday 2/14/20 |  |
0.0/0" Brackett 0.0/0" Shower 0.0/0" Lone |
0.0/0" Carrot 0.0/0" Lionhead / 0.0/0" Fisher |
10-40 G55 Hyalite G64 Big Sky |
S-W | Large natural avalanche in Divide Basin, Hyalite; Large natural avalanche in Middle/Bear Basin; Natural avalanche on Alex Lowe Peak; Natural avalanche east of the top of Lick Creek; 2 slides in a week on Knowles Peak, Paradise Valley; Large natural on E side Woody Ridge, Cooke; Natural Avalanche up Moose Jaw, Storm Castle Ridge |
|
| Thursday 2/13/20 |  |
0.2/6" Bridger 0.1/2" Shower 0.1/2" Timber |
0.1/2" Carrot 0.0/0" Madison / 0.1/2" Fisher |
10-20 | W-NW | Snowmobile Triggered Slide in McAtee Basin; Cornice fall triggered soft slab slab in Spanish Peaks; Two large slides on Wheeler Mtn |
|
| Wednesday 2/12/20 |  |
0.5/5" Brackett 0.5/5" Shower 0.3/5" Timber |
0.3/4" Carrot 0.2/3" Madison / 0.6/6" Fisher |
10-25 | W-N | Remotely triggered avalanches on Garnet Mtn. | |
| Tuesday 2/11/20 |  |
0.0/0" Bridger 0.1/1" Shower 0.1/1" Lobo |
0.1/1" Carrot 0.1/1" Madison / 0.1/1" Fisher |
10-20 G30 | W-S | Collapsing and Cracking on Mt. Ellis; Slides triggered in Deer Creek, N. Madison |
|
| Monday 2/10/20 |  |
0.6/11" Bridger 0.4/4" Shower 0.4/5" Lone |
0.1/1" Carrot 0.0/0" Madison / 0.3/3" Fisher |
10-20 G30-40 | W-NW | ||
| Sunday 2/9/20 |  |
0.5/6" Brackett 0.9/10" Shower 0.4/3" Lone |
0.2/2" Carrot 0.0/0" Madison / 0.3/2" Fisher |
5-15 G30-40 | NW-NE | Truman Gulch Natural Deep Slabs; Small natural and human triggered avalanches in Cooke; Wind slab avalanche on Ross Peak, Bridgers; Collapsing and cracking on Little Ellis; Small avalanches in Tepee Basin, N. Madison; Many naturals near Flathead Pass |
|
| Saturday 2/8/20 |  |
0.2/2" Bridger 0.2/2" Shower 0.2/2" Timber |
0.2/2" Carrot 0.2/2" Madison / 0.6/6" Fisher |
10-30 G30-50 | SW-W | Snowmobile Triggered Avalanches, McAtee Basin; Snowmobiler triggered avalanches in Portal Ck, N. Gallatin; Natural avalanche on Cedar Mountian; Natural Avalanches West of Beehive Peak |
|
| Friday 2/7/20 |  |
1.3/14" Bridger 1.0/12" Shower 0.9/24" Bavaria |
0.7/10" Carrot 0.9/11" Lionhead / 0.4/4" Fisher |
10-20 G35-40 | NW-W | Natural 3' storm slabs north of Bridger; Natural Avalanche in Muddy Creek, Buck Ridge; Natural avalanches on Wheeler Mtn, N. Gallatin; Several avalanches on Elephant Mtn on way to Mt. Blackmore |
@0600 AVALANCHE WARNING everywhere except Cooke |
| Thursday 2/6/20 |  |
1.5/15" Bridger 0.8/15" Shower 0.6/11" Timber |
0.6/10" Carrot 0.6/13" Lionhead / 0.4/6" Fisher |
15-20 G40 | W-NW | Human triggered and natural on Buck Ridge; Small Natural storm snow avalanches in Gallatin Canyon; Skier triggered south face Texas meadow; Widespread cracking and collapses on Little Ellis; Natural avalanche near Ross Peak; Natural Deep Slab Saddle Peak |
@0600 and 6% density AVALANCHE WARNING everywhere except Cooke |
| Wednesday 2/5/20 |  |
0.3/10" Bridger 0.2/2" Shower 0.3/8" Bavaria |
0.2/2" Carrot 0.2/2" Madison / 0.2/2" Fisher |
10-20 G30-40 | W | Small avalanche triggered under Dribbles Ice Climb in Hyalite | |
| Tuesday 2/4/20 |  |
0.0/0" Brackett 0.0/0" Shower 0.0/0" Lobo |
0.0/0" Carrot 0.0/0" Madison / 0.0/0" Fisher |
5-15 G25 | E-NE-N-NW-W | Natural Avalanche in Pinnacles, Bridger Range; Collapsing, cracking and recent natural avalanche in northern Bridgers; Small natural slide in Tepee Basin, S. Madison |
|
| Monday 2/3/20 |  |
1.3/14" Bridger 0.6/9" Shower 0.4/10" Timber |
0.7/8" Carrot 0.8/9" Madison / 0.4/7" Fisher |
5-15 G20-30 25 G54 Bridger |
E-NE-N | Cooke City Deep Slab Natural; Cooke City Wind Slab; Natural Avalanche in Northern Madison Range; Natural Avalanches on the west side of the Bridger Range; Natural avalanche near Ross Peak, Bridgers |
|
| Sunday 2/2/20 |  |
0.0/0" Bridger 0.0/0" Shower 0.0/0" Lone |
0.0/0" Carrot 0.0/0" Madison / 0.0/0" Fisher |
15-50 G155 Big Sky G76 Hyalite G52 Cooke G64 T Fork |
SW | Small avalanche triggered in new snow by ice climber, Hyalite; Natural avalanche in Great One, Bridger Range; Reas Peak - Natural Avalanche |
|
| Saturday 2/1/20 |  |
0.0/0" Brackett 0.0/0" Shower 0.0/0" Lone |
0.0/0" Carrot 0.0/0" Lionhead / 0.1/1" Fisher |
15-35 G60 Hyalite |
SW-W | Natural avalanche on Cedar Mtn.; Snowmobile triggered big slides on Skyline Ridge; Snowmobile triggered wind slab Crown Butte; Wind Slabs on Woody Ridge; Town Hill Avalanche, Cooke City |
|
| Friday 1/31/20 |  |
0.0/0" Brackett 0.0/0" Shower 0.0/0" Lone |
0.0/0" Carrot 0.0/0" Madison / 0.0/0" Fisher |
15-30 G45 | SW-NW | ||
| Thursday 1/30/20 |  |
0.2/2" Brackett 0.1/2" Shower 0.1/2" Timber |
0.2/2" Carrot 0.1/1" Madison / 0.1/1" Fisher |
15 G20-35 | W-SW | Human triggered wind slab on Lulu; Large Natural Avalanche on Fan Mtn.; Thin natural wind slabs in Cooke City; Natural avalanche in wind-loaded snow near Mt Bole, Hyalite |
|
| Wednesday 1/29/20 |  |
0.3/3" Brackett 0.1/1" Shower 0.2/4" Timber |
0.2/3" Carrot 0.4/5" Madison / 0.2/3" Fisher |
5-15 G25 | SW-N | ||
| Tuesday 1/28/20 |  |
0.0/0" Brackett 0.0/0" Shower 0.2/2" Timber |
0.0/0" Carrot 0.0/0" Madison / 0.0/0" Fisher |
5-15 G30 | W-S | Small Wind Slab on Mt. Blackmore | |
| Monday 1/27/20 |  |
1.2/7" Bridger 0.4/4" Shower 0.3/3" Timber |
0.5/5" Carrot 0.4/4" Madison / 0.3/3" Fisher |
5-10 G15 G24 Bridgers |
SW-NW | Natural Avalanche on Naya Nuki | 24 hr Storm total @0800 |
| Sunday 1/26/20 |  |
0.0/0" Bridger 0.0/0" Shower 0.0/0" Timber |
0.0/0" Carrot 0.1/1" Madison / 0.3/3" Fisher |
5-20 G25-30 | W-SW | ||
| Saturday 1/25/20 |  |
0.2/2" Brackett 0.1/1" Shower 0.1/1" Timber |
0.2/2" Carrot 0.1/1" Madison / 0.1/1" Fisher |
10-20 G25-40 | W | ||
| Friday 1/24/20 |  |
0.2/2" Brackett 0.2/2" Shower 0.1/1" Lobo |
0.2/2" Carrot 0.1/1" Madison / 0.2/2" Fisher |
5-15 G30 | S-W | Explosive triggered Deep Slab Avalanche at Big Sky; Natural on Alex Lowe peak |
|
| Thursday 1/23/20 |  |
0.0/0" Brackett 0.0/0" Shower 0.1/1" Timber |
0.0/0" Carrot 0.0/0" Madison / 0.0/0" Fisher |
10-15 G25 | W-SW | Large Collapse near Ross Peak | Light freezing drizzle and rain at low elevations |
| Wednesday 1/22/20 |  |
0.2/2" Bridger 0.3/4" Shower 0.3/6" Timber |
0.2/2" Carrot 0.2/2" Madison / 0.2/2" Fisher |
10-15 G35 | W-SW | ||
| Tuesday 1/21/20 |  |
0.0/0" Bridger 0.0/0" Shower 0.1/1" Lobo |
0.1/1" Carrot 0.1/1" Madison / 0.2/2" Fisher |
10-20 G30, G45 in Hyalite | SW | ||
| Monday 1/20/20 |  |
0.0/0" Bridger 0.0/0" Shower 0.0/0" Lone |
0.0/0" Carrot 0.0/0" Lionhead / 0.0/0" Fisher |
5-15 G20-25 | SW-W NW Cooke |
Natural Avalanche Meridian Peak; Natural Avalanche Wolverine Peak; Snowmobile Triggered Avalanche Lionhead; Snowmobile Triggered Avalanche McAtee Basin |
|
| Sunday 1/19/20 |  |
0.1/1" Brackett 0.1/1" Shower 0.1/3" Bavaria |
0.1/3" Beaver 0.1/3" Lionhead / 0.1/3" Fisher |
5-15 G20-30 | W-SW | Natural cornice triggered Lionhead Ridge; Skier triggered north of Bridger; Collapsing at Taylor Fork; Snowmobile triggered on Cedar; Snowmobile triggered near Reas Peak; Collapses and Whumphs west side Bridgers; Natural Deep Slab Avalanche Hayden Headwall |
|
| Saturday 1/18/20 |  |
1.0/9" Bridger 0.3/6" Shower 0.4/9" Lookout |
0.3/5" Carrot 0.3/6" Madison / 0.1/2" Fisher |
15-25 G 30-40 | S-W | Cornice triggered deep slab in Argentina Bowl; Skier triggered Avalanche north of Divide Peak.; Skiers triggered 2 large slides Flanders Mtn.; Snowmobile triggered in Taylor Fork; Skier triggered small slide Mount Wheeler; Cracking/Collapsing on Bridger Ridge |
|
| Friday 1/17/20 |  |
0.0/0" Brackett 0.0/0" Shower 0.0/0" Lone |
0.0/0" Carrot 0.0/0" Lionhead / 0.0/0" Fisher |
10-25 G25-45 G60 Hyalite |
SW-SE | Large natural avalanche near Hardscrabble Peak; Natural Avalanche on Lionhead Ridge |
|
| Thursday 1/16/20 |  |
0.0/0" Brackett 0.0/0" Shower 0.0/0" Timber |
0.0/0" Carrot 0.0/0" Madison / 0.0/0" Fisher |
20-30 G45, G65Hyalite | S-SW | Two big snowmobile triggered on Henderson Mtn., Cooke City; Large natural avalanche in northern Bridgers; Natural near Cooke; Natural avalanche north of Lulu Pass, Cooke City |
|
| Wednesday 1/15/20 |  |
0.3/9" Bridger 0.2/4" Shower 0.1/2" Lobo |
0.2/4" Carrot 0.2/4" Madison / 0.4/6" Fisher |
15-25 G40 | W-SW | Skier triggered avalanche near Saddle Peak; A couple of thin, natural avalanches near Cooke City; Bat Ears Couloir and Bear Basin avalanches; Whumphing at Big Horn Peak, S. Gallatin Range |
|
| Tuesday 1/14/20 |  |
0.2/5" Bridger 0.0/0" Shower 0.0/0" Lobo |
0.3/3" Carrot 0.4/4" Madison / 0.4/4" Fisher |
10-20 G35 | SW | Beehive East Ridge; Large natural avalanche on Mt. Fox, Cooke City; Snowmobile Triggered Avalanche in Taylor Fork |
|
| Monday 1/13/20 |  |
0.4/7" Brackett 0.1/1" Shower 0.3/4" Timber |
0.7/7" Carrot 1.0/12" Madison / 0.6/6" Fisher |
15-30 G30-50 |
S-SW | 18-24" Wind Slab North of Bridger Bowl; Remote Trigger Meridian Peak |
@0600 |
| Sunday 1/12/20 |  |
0.1/1" Brackett 0.2/2" Shower 0.3/7" Timber |
0.3/3" Carrot 0.3/3" Madison / 0.3/4" Fisher |
15-20 G25-35 | W-SW | ||
| Saturday 1/11/20 |  |
0.2/2" Brackett 0.2/2" Shower 0.3/11" Timber |
0.2/2" Carrot 0.2/2" Madison / 0.1/1" Fisher |
20-30 G30-50 | S-W | Natural Avalanches on Buck Ridge | |
| Friday 1/10/20 |  |
0.5/7" Bridger 0.4/7" Shower 0.3/5" Bavaria |
0.1/1" Carrot 0.1/2" Madison / 0.2/2" Fisher |
15-20 G30 | W-NW | Skier triggered slide on Saddle Pk; Snowmobile Triggered Slide on Chimney Rock; YC Patrol triggered avalanche to ground |
|
| Thursday 1/9/20 |  |
0.6/8" Bridger 0.1/1" Shower 0.4/6" Timber |
0.3/3" Carrot 0.1/1" Madison / 0.4/4" Fisher |
10-15 G30 | W-SW | Avalanche on Hebgen Lake Road Cut; Natural Avalanche near Buck Ridge; Windslab in Middle Basin |
|
| Wednesday 1/8/20 |  |
0.1/1" Brackett 0.0/0" Shower 0.0/0" Timber |
0.1/1" Carrot 0.1/1" Madison / 0.6/6" Fisher |
15-20 G25-45 | SW | Skier triggered avalanche on Town Hill, Cooke City; Natural Avalanche on Miller Ridge |
|
| Tuesday 1/7/20 |  |
0.1/1" Bridger 0.1/1" Shower 0.2/3" Timber |
0.3/3" Carrot 0.5/8" Madison / 0.9/10" Fisher |
10-20 West Yellowstone/ Cooke 15-30 Big Sky - Bridgers |
W-SW | Skier triggered avalanche in N. Madison | |
| Monday 1/6/20 |  |
0.0/0" Bridger 0.1/1" Shower 0.1/2" Lone |
0.2/2" Carrot 0.2/2" Madison / 0.2/2" Fisher |
25-40 G40-55 |
W-SW | ||
| Sunday 1/5/20 |  |
0.1/1" Brackett 0.1/1" Shower 0.1/2" Timber |
0.0/0" Carrot 0.0/0" Lionhead / 0.2/2" Fisher |
20-35 G40-65 |
SW-W |
Middle Basin Cornice Fall | |
| Saturday 1/4/20 |  |
0.0/0" Bridger 0.0/0" Shower 0.0/0" Timber |
0.0/0" Carrot 0.0/0" Madison / 0.3/3" Fisher |
20-30 G35-50 10 G20 Lionhead/Cooke |
S-W | Bridger patrol triggered deep slab; Three snowmobilers caught in very large slide on Buck Ridge; Small avalanches in Hyalite on Flanders and the Mummy; Shooting cracks at Ross Peak, Bridgers; Deep slab avalanches triggered by Big Sky patrol; Cooke City lots of settling & cracking of the snow |
|
| Friday 1/3/20 |  |
0.0/0" Bridger 0.1/1" Shower 0.0/0" Lobo |
0.1/1" Carrot 0.0/0" Madison / 0.1/1" Fisher |
10-20 G30-40 30 G40 Bridgers |
SW-W | Large Natural on Saddle Peak; Natural slides and collapsing in Bridger Range; Avalanche in Beehive; Natural Avalanche on Yellow Mountain |
|
| Thursday 1/2/20 |  |
0.9/8" Brackett 0.7/6" Shower 0.9/13" Timber |
0.4/5" Carrot 0.2/2" Madison / 0.6/6" Fisher |
20-30 G45 | W | ||
| Wednesday 1/1/20 |  |
0.6/5" Brackett 0.3/4" Shower 0.3/3" Lone |
0.6/6" Carrot 0.6/8" Madison / 0.3/3" Fisher |
20-25 G35; G60 Hyalite | W-SW | Small skier triggered avalanche near Mt Blackmore Trail, Hyalite; Many small, natural avalanches outside Cooke City |
|
| Tuesday 12/31/19 |  |
0.0/0" Bridger 0.0/0" Shower 0.0/0" Timber |
0.0/0" Carrot 0.0/0" Madison / 0.0/0" Fisher |
10-20 G 25 15-35 Bridgers |
NW-W-SW | Skier remotely triggered a small wind slab up Hyalite; Ice climber hit by loose snow avalanche on Killer Pillar, Hyalite |
|
| Monday 12/30/19 |  |
0.0/1" Bridger 0.0/0" Shower 0.0/2" Timber |
0.0/0" Carrot 0.0/0" Lionhead / 0.0/0" Fisher |
0-15 G15-25 |
NW-NE | ||
| Sunday 12/29/19 |  |
0.0/4" Bridger 0.0/0" Shower 0.0/0" Timber |
0.0/0" Carrot 0.0/0" Lionhead / 0.0/0" Fisher |
0-10 G15-20 |
NW-SW | Remote triggered 6' deep in Tobacco Root Mtns | "Pixie dust" at Bridger yesterday a.m. |
| Saturday 12/28/19 |  |
0.0/0" Brackett 0.0/0" Shower 0.0/0" Timber |
0.0/0" Carrot 0.0/0" Madison / 0.0/0" Fisher |
5-10 G15-25 | W-N | ||
| Friday 12/27/19 |  |
0.1/1" Bridger 0.0/0" Shower 0.0/0" Timber |
0.0/0" Carrot 0.0/0" Madison / 0.0/0" Fisher |
10-20 G30 5-10 Lionhead |
S-W | Two large, deep avalanches on Mt. Henderson near Cooke; Snowmobiler triggered avalanche near Daisy Pass, Cooke City |
|
| Thursday 12/26/19 |  |
0.1/2" Bridger 0.1/1" Shower 0.1/2" Timber |
0.0/0" Carrot 0.0/0" Madison / 0.0/0" Fisher |
5-10 | SW-S-E | Wind Slab avalanche near Cooke City | |
| Wednesday 12/25/19 |  |
0.3/2" Brackett 0.2/2" Shower 0.4/4" Lone |
0.7/7" Carrot 0.8/8" Madison / 0.4/4" Fisher |
10-20 G40 | SW-W | ||
| Tuesday 12/24/19 |  |
0.0/0" Brackett 0.0/0" Shower 0.1/1" Lobo |
0.0/0" Carrot 0.1/1" Madison / 0.0/0" Fisher |
10-20 G35 | SW-SE | Natural Avalanches near Lionhead; Small Slide in 2nd Yellowmule |
|
| Monday 12/23/19 |  |
0.0/0" Bridger 0.0/0" Shower 0.0/0" Timber |
0.0/0" Carrot 0.0/0" Madison / 0.0/0" Fisher |
15-25 G30-50 | S-SW | ||
| Sunday 12/22/19 |  |
0.0/0" Alpine 0.0/0" Shower 0.0/0" Timber |
0.0/0" Carrot 0.0/0" Madison / 0.0/0" Fisher |
25-40 G40-60 G83 Big Sky G75 Hyalite |
SW-S | Large Collapse on hard wind slab in Hyalite | |
| Saturday 12/21/19 |  |
0.0/0" Brackett 0.0/0" Shower 0.0/0" Timber |
0.0/0" Carrot 0.0/0" Madison / 0.3/3" Fisher |
20-30 G35-50 | S-W | Large natural avalanche near Cooke City; Snowmobile remote triggered 5' deep wind slab; Human triggered hard wind slab near Fairy Lake |
|
| Friday 12/20/19 |  |
0.0/0" Brackett 0.0/0" Shower 0.0/0" Timber |
0.0/0" Carrot 0.1/1" Madison / 0.1/1" Fisher |
15-30 G30-50 | SW-W | ||
| Thursday 12/19/19 |  |
0.0/0" Bridger 0.0/0" Shower 0.0/0" Timber |
0.0/0" Carrot 0.0/0" Madison / 0.0/0" Fisher |
15-20 G45 | SW | ||
| Wednesday 12/18/19 |  |
0.0/0" Brackett 0.0/0" Shower 0.0/0" Timber |
0.0/0" Carrot 0.0/0" Madison / 0.0/0" Fisher |
15-25 G35 | S-W | ||
| Tuesday 12/17/19 |  |
0.0/0" Brackett 0.0/0" Shower 0.0/0" Timber |
0.0/0" Carrot 0.0/0" Madison / 0.0/0" Fisher |
10-20 G25 30-35 G45 Bridgers |
W | Natural wide wind slab on Saddle Peak; Bison triggered Avalanche in YNP?; Shallow wind slab avalanches in Hyalite |
|
| Monday 12/16/19 |  |
0.1/3" Bridger 0.1/1" Shower 0.0/1" Timber |
0.0/0" Carrot 0.0/0" Madison / 0.0/0" Fisher |
15-25 G30-40 | W | ||
| Sunday 12/15/19 |  |
0.3/4" Brackett 0.2/2" Shower 0.1/1" Lone |
0.0/0" Carrot 0.0/0" Madison / 0.0/0" Fisher |
10-20 G25 | NW-SW | Large avalanches in Taylor Fork | |
| Saturday 12/14/19 |  |
0.0/0" Brackett 0.1/1" Shower 0.1/1" Lone |
0.0/0" Carrot 0.1/1" Madison / 0.0/0" Fisher |
5-15 G10-20 | W | Slat Creek - 2nd Hand Report; Three snowmobile triggered avalanches near Cooke City; Snowmobile triggered/caught on Mt. Abundance near Cooke; Natural in Republic Creek; Natural avalanches near Silver Gate; Small slide in Hyalite; Mount Fox East Face; The Fin Avalanche |
|
| Friday 12/13/19 |  |
0.3/3" Brackett 0.1/1" Shower 0.3/3" Timber |
0.6/6" Carrot 0.4/4" Madison / 0.5/5" Fisher |
15-25 G45 | W | Remote triggered large avalanche near Cooke | |
| Thursday 12/12/19 |  |
0.1/1" Brackett 0.1/2" Shower 0.1/2" Timber |
0.3/3" Carrot 0.3/3" Madison / 0.4/4" Fisher |
15-20 G30-40 | W-SW | Collapsing in Cooke City; Natural slides in Carrot Basin |
|
| Wednesday 12/11/19 |  |
0.0/0" Brackett 0.0/0" Shower 0.0/0" Timber |
0.0/0" Carrot 0.0/0" Madison / 0.0/0" Fisher |
15-20 G20-30 | W-SW | ||
| Tuesday 12/10/19 |  |
0.0/0" Brackett 0.0/0" Shower 0.0/0" Timber |
0.0/0" Carrot 0.0/0" Madison / 0.0/0" Fisher |
10-20 G20-30 | W | Whumphing and collapses at Bacon Rind | |
| Monday 12/9/19 |  |
0.4/4" Brackett 0.5/6" Shower 0.5/4" Timber |
0.4/4" Carrot 0.3/3" Madison / 0.5/5" Fisher |
20-25 G30-45 |
W-NW | ||
| Sunday 12/8/19 |  |
0.1/1" Brackett 0.1/1" Shower 0.3/3" Timber |
0.4/4" Carrot 0.6/6" Madison / 0.9/9" Fisher |
15-25 G40-50 | SW | Natural and human triggered slides in Cooke City; Many natural avalanches on Buck Ridge; Widespread cracking at Lionhead |
@0500 |
| Saturday 12/7/19 |  |
0.0/0" Brackett 0.0/0" Shower 0.0/0" Lone |
0.0/0" Carrot 0.0/0" Lionhead / 0.0/0" Fisher |
20-30 G25-50 | S-W | ||
| Friday 12/6/19 |  |
0.0/0" Brackett 0.0/0" Shower 0.0/0" Lobo |
0.0/0" Carrot 0.0/0" Madison / 0.0/0" Fisher |
5-15 G10-25 | S-W | ||
| Thursday 12/5/19 |  |
0.0/0" Brackett 0.0/0" Shower 0.0/0" Timber |
0.0/0" Carrot 0.0/0" Madison / 0.0/0" Fisher |
5-15 | W | ||
| Wednesday 12/4/19 |  |
0.0/0" Brackett 0.0/0" Shower 0.0/0" Timber |
0.0/0" Carrot 0.0/0" Madison / 0.0/0" Fisher |
10-20 G40 | W-SW | Collapses in s. Gallatin | |
| Tuesday 12/3/19 |  |
0.0/0" Brackett 0.0/0" Shower 0.0/0" Timber |
0.2/2" Carrot 0.1/1" Madison / 0.2/2" Fisher |
15-30 G40 | W | Bridger patrol triggered large slides on heavily wind loaded slopes | |
| Monday 12/2/19 |  |
0.1/2" Bridger 0.1/1" Shower 0.2/2" Timber |
0.4/4" Carrot 0.2/2" Madison / 0.3/3" Fisher |
15-25 G45 | W-SW | ||
| Sunday 12/1/19 |  |
0.1/1" Brackett 0.0/0" Shower 0.1/1" Timber |
0.1/1" Carrot 0.1/1" Madison / 0.1/1" Fisher |
10-20 G30 | WSW | Small intentionally triggered wind slab in Beehive Basin; Natural and human triggered wind slabs in the Bridger Range; Natural slide on Mineral Mountain; Natural and human triggered wind slab avalanches in Hyalite |
|
| Saturday 11/30/19 |  |
0.4/5" Alpine 0.2/5" Shower 0.2/3" Timber |
0.3/3" Carrot 0.6/7" Madison / 0.4/4" Fisher |
5-15 20-40 Bridger |
NE-E ESE-Bridger |
Widespread Collapsing at Lionhead; Skier triggered dry loose at Beehive; Skier triggered loose snow and natural wind slabs at Bridger |
|
| Friday 11/29/19 |  |
0.1/2" Brackett 0.1/1" Shower 0.0/1" Lone |
0.3/4" Carrot 0.3/4" Madison / 0.3/3" Fisher |
10-20 | SE-NE; N Bridger | ||
| Thursday 11/28/19 |  |
0.2/1" Brackett 0.1/1" Shower 0.1/2" Lone |
0.4/5" Carrot 0.2/2" Madison / 0.1/1" Fisher |
10-20 G35 | E-SE | ||
| Wednesday 11/27/19 | 0.0/0" Alpine 0.0/0" Shower 0.0/0" Timber |
0.2/2" Carrot 0.0/0" Madison / 0.0/0" Fisher |
5-15 G30-40 | S-ESE | |||
| Tuesday 11/26/19 | 0.2/3" Bridger 0.0/0" Shower 0.0/0" Timber |
0.0/0" Carrot 0.0/0" Madison / 0.0/0" Fisher |
5-15 | E-NE Bridger, Cooke; W-NW Hyalite, Big Sky |
|||
| Monday 11/25/19 |  |
0.0/0" Alpine 0.0/0" Shower 0.1/2" Timber |
0.0/0" Carrot 0.0/0" Madison / 0.0/0" Fisher |
25-40 G65 | W-NW | ||
| Sunday 11/24/19 | 0.0/0" Alpine 0.0/0" Shower 0.0/0" Timber |
0.0/0" Carrot 0.0/0" Madison / 0.0/0" Fisher |
20-30 G50 10-20-Cooke |
W-SW WNW-Cooke |
|||
| Saturday 11/23/19 | 0.0/0" Alpine 0.0/0" Shower 0.0/0" Timber |
0.0/0" Carrot 0.0/0" Madison / 0.0/0" Fisher |
15-25 G38 | W NW-Cooke |
Shooting cracks in windslabs, Hyalite | ||
| Friday 11/22/19 | 0.0/0" Brackett 0.0/0" Shower 0.0/0" Timber |
0.0/0" Carrot 0.0/0" Madison / 0.0/0" Fisher |
10-20 | W-N | Large avalanches in Absaroka - Outside Advisory area | ||
| Thursday 11/21/19 |  |
0.0/0" Bridger 0.0/0" Shower 0.1/1" Timber |
0.0/0" Carrot 0.0/0" Madison / 0.0/0" Fisher |
0-10 G15 | NE | ||
| Wednesday 11/20/19 | 0.6/5" Bridger 0.6/4" Shower 0.3/4" Timber |
0.0/0" Carrot 0.0/0" Madison / 0.0/0" Fisher |
10-15 | W-NW | Small new snow avalanches at Bridger | @500 |
|
| Tuesday 11/19/19 | 0.0/0" Brackett 0.0/0" Shower 0.0/0" Timber |
0.0/0" Carrot 0.0/0" Madison / 0.0/0" Fisher |
10-20 G35 | SW | |||
| Monday 11/18/19 |  |
0.3/0" Brackett 0.3/0" Shower 0.3/1" Timber |
0.2/2" Carrot 0.1/1" Madison / 0.4/4" Fisher |
15-30 | W-SW | Rain to ~9,000 feet in northern ranges. |
|
| Sunday 11/17/19 | 0.0/0" Brackett 0.0/0" Shower 0.1/1" Timber |
0.0/0" Carrot 0.0/0" Madison / 0.0/0" Fisher |
15-25 G48-Bridger |
W NW-Cooke |
|||
| Saturday 11/16/19 | 0.0/0" Brackett 0.5/4" Shower 0.4/3" Timber |
0.1/1" Carrot 0.0/0" Madison / 0.1/1" Fisher |
10-20 G40 | W-SW | Rivers of loose snow avalanches in Flanders Drainage | ||
| Friday 11/15/19 | 0.0/0" Brackett 0.0/0" Shower 0.0/0" Timber |
0.0/0" Carrot 0.0/0" Madison / 0.0/0" Fisher |
15 G25 | W | |||
| Thursday 11/14/19 |  |
0.0/0" Bridger 0.0/0" Shower 0.0/0" Timber |
0.0/0" Carrot 0.0/0" Madison / 0.0/0" Fisher |
10-20 G30 | W-SW NW Cooke City |
Small wet avalanche in Beehive | |
| Wednesday 11/13/19 | 0.2/2" Brackett 0.3/5" Shower 0.0/0" Timber |
0.1/1" Carrot 0.0/0" Madison / 0.2/2" Fisher |
20-30 G 35 | W | |||
| Tuesday 11/12/19 |  |
0.0/0" Alpine 0.0/0" Shower 0.0/0" Lone |
0.2/2" Carrot 0.1/1" Madison / 0.2/2" Fisher |
15-20 G25-35 | W-SW | Ice climber triggered and caught in avalanche in Upper Mill Creek, Absarokas | |
| Monday 11/11/19 | 0.3/4" Alpine 0.3/3" Shower 0.2/2" Lone |
0.0/0" Carrot 0.0/0" Madison / 0.2/2" Fisher |
10-16 G20 | W-NW | Cracking Wind Slabs at Bridger | ||
| Sunday 11/10/19 | 0.1/0" Brackett 0.1/0" Shower 0.0/0" Lone |
0.0/0" Carrot 0.0/0" Madison / 0.0/0" Fisher |
10-20 G40 | W | Wind Slab avalanche on Mt. Blackmore | Rain to 8-8,500' this morning |
|
| Saturday 11/9/19 | 0.0/0" Brackett 0.0/0" Shower 0.0/0" Lone |
0.0/0" Carrot 0.0/0" Madison / 0.0/0" Fisher |
20-25 G40 | W-SW | |||
| Friday 11/8/19 |  |
0.0/0" Bridger 0.0/0" Shower 0.0/0" Timber |
0.0/0" Carrot 0.0/0" Madison / 0.0/0" Fisher |
10-20 G35 | W-SW NW Cooke City |
||
| Thursday 11/7/19 | 0.1/1" Bridger 0.0/0" Shower 0.0/0" Timber |
0.0/0" Carrot 0.0/0" Madison / 0.0/0" Fisher |
10-15 G30 | SW-W N Cooke City |
|||
| Wednesday 11/6/19 | 0.0/0" Brackett 0.0/0" Shower 0.0/0" Lone |
0.0/0" Carrot 0.0/0" Madison / 0.0/0" Fisher |
10-20 G20-40 | W-NW NE Bridgers |
|||
| Tuesday 11/5/19 | 0.4/3" Brackett 0.3/2" Shower 0.0/0" Timber |
0.0/0" Carrot 0.0/0" Madison / 0.2/2" Fisher |
15-25 G30-40 | W | Wet loose at Bridger | ||
| Monday 11/4/19 |  |
0.0/0" Alpine 0.3/3" Shower 0.0/0" Timber |
0.0/0" Carrot 0.0/0" Madison / 0.2/2" Fisher |
10-15 G25-35 |
W-SW NW Cooke |
||
| Sunday 11/3/19 | 0.0/0" Brackett 0.1/1" Shower 0.0/0" Timber |
0.0/0" Carrot 0.0/0" Madison / 0.0/0" Fisher |
15-25 G35 G51 Hyalite |
W N Cooke |
|||
| Saturday 11/2/19 | 0.0/0" Alpine 0.0/0" Shower 0.0/0" Timber |
0.0/0" Carrot 0.0/0" Madison / 0.0/0" Fisher |
15-25 G30 G44 Bridger |
W NW Cooke |
Collapsing of a wind slab in Hyalite; Skier triggered small wind slabs in Beehive; Cornice triggered slab in Hyalite |
||
| Friday 11/1/19 |  |
0.3/5" Bridger 0.4/5" Shower 0.2/4" Lobo |
0.2/3" Carrot 0.1/1" Madison / 0.1/1" Fisher |
10-20 G35 | W-NW | Natural wind slabs and dry loose avalanches Mt. Blackmore | |
| Thursday 10/31/19 | 0.0/0" Brackett 0.0/0" Shower 0.0/0" Timber |
0.0/0" Carrot 0.0/0" Madison / 0.0/0" Fisher |
20-30 G45 | W | |||
| Wednesday 10/30/19 | 0.0/0" Alpine 0.0/0" Shower 0.0/0" Timber |
0.0/0" Carrot 0.0/0" Madison / 0.0/0" Fisher |
20-35 in N 10-15 in S |
W | Shooting Cracks at Bridger Bowl; Small wind slab triggered in Hyalite; Natural avalanches north of Bridger |
@0600; Lows 0F to -4F |
|
| Tuesday 10/29/19 | 0.5/14" Alpine 0.2/2" Shower 0.2/3" Timber |
0.4/4" Carrot 0.3/3" Madison / 0.2/2" Fisher |
5-15 G35 | N-NE | Several small skier triggered/natural slides at Bridger; Natural avalanches in Hyalite |
BBSP Measured 14" at Alpine Flanders Temp -20 F |
|
| Monday 10/28/19 |  |
0.1/1" Bridger 0.0/0" Shower 0.1/1" Lobo |
0.0/0" Carrot 0.0/0" Madison / 0.0/0" Fisher |
10-15 G35 | W-NW | Natural and skier triggered new snow/wind slabs at Bridger | @0600 |
| Sunday 10/27/19 |  |
0.3/5" Brackett 0.5/8" Shower 0.3/5" Lobo |
0.3/3" Carrot 0.2/3" Madison / 0.4/5" Fisher |
5-10 G15-20 | NW-N | @0500 |
|
| Saturday 10/26/19 | 0.2/2" Brackett 0.1/1" Shower 0.1/1" Timber |
0.0/0" Carrot 0.0/0" Madison / 0.0/0" Fisher |
10-15 G30-40 | NW-N SW in Cooke |
Small avalanches at Bridger | @0700 |
|
| Friday 10/25/19 |  |
0.0/0" Brackett 0.0/0" Shower 0.0/0" Lone |
0.0/0" Carrot 0.0/0" Madison / 0.0/0" Fisher |
15-25 G30-40 | W-SW NW Cooke |
Avalanches in Taylor Fork; Small Wind Slabs on Mt Blackmore |
@0500 |
| Thursday 10/24/19 | 0.2/2" Bridger 0.2/3" Shower 0.1/1" Timber |
0.2/2" Carrot 0.0/0" Madison / 0.2/2" Fisher |
5-10 G20 | NW-SW | @0700 |
||
| Wednesday 10/23/19 | 0.5/1" Brackett 0.6/3" Shower 0.2/2" Timber |
0.2/2" Carrot 0.2/1" Madison / 0.6/6" Fisher |
20-30 G70 | W | @0700 |
||
| Tuesday 10/22/19 | 0.0/0" Alpine 0.1/1" Shower 0.1/1" Timber |
0.3/3" Carrot 0.1/1" Madison / 0.2/3" Fisher |
10-20 G40 | W | Cornice Collapse-Saddle Peak | @0700 |
|
| Monday 10/21/19 |  |
0.2/3" Brackett 0.4/4" Shower 0.2/2" Lone |
0.1/1" Carrot 0.1/1" Madison / 0.2/2" Fisher |
10-15 G20-30 | W | ||
| Sunday 10/20/19 | 1.2/14" Bridger 1.0/11" Shower 0.4/8" Timber |
0.5/5" Carrot 0.7/6" Madison / 0.6/7" Fisher |
15-20 G30 | W-NW | Small avalanche in Hyalite | @0700 |
|
| Saturday 10/19/19 | 0.0/0" Alpine 0.0/0" Shower 0.1/1" Timber |
0.1/1" Carrot 0.1/1" Madison / 0.0/0" Fisher |
15-25 G45 | W-SW | @0700 |
||
| Friday 10/18/19 | 0.2/2" Alpine 0.2/2" Shower 0.1/2" Timber |
0.0/0" Carrot 0.0/0" Madison / 0.0/0" Fisher |
15-25 G35 | W-SW | @0700 |
||
| Thursday 10/17/19 |  |
0.0/0" Alpine 0.0/0" Shower 0.0/0" Timber |
0.0/0" Carrot 0.0/0" Madison / 0.0/0" Fisher |
15-25 G40 | W-SW | Issued Early Season Bulletin |
|
| Wednesday 10/16/19 | 0.0/0" Alpine 0.0/0" Shower 0.0/0" Timber |
0.0/0" Carrot 0.0/0" Madison / 0.0/0" Fisher |
15-30 | W | |||
| Tuesday 10/15/19 | 0.0/0" Brackett 0.0/0" Shower 0.0/0" Timber |
0.0/0" Carrot 0.0/0" Madison / 0.0/0" Fisher |
10-25 | W-SW | |||
| Monday 10/14/19 | 0.0/0" Brackett 0.0/0" Shower 0.0/0" Timber |
0.0/0" Carrot 0.0/0" Madison / 0.0/0" Fisher |
10-25 G40 | WSW | |||
| Sunday 10/13/19 | 0.0/0" Brackett 0.0/0" Shower 0.0/0" Lone |
0.0/0" Carrot 0.0/0" Madison / 0.0/0" Fisher |
5-20 | W-SW | |||
| Saturday 10/12/19 | 0.0/0" Brackett 0.0/0" Shower 0.0/0" Lone |
0.0/0" Carrot 0.0/0" Madison / 0.0/0" Fisher |
10-25 G30 Bridger |
WSW NW Cooke |
|||
| Friday 10/11/19 | 0.0/0" Brackett 0.0/0" Shower 0.0/0" Lone |
0.0/0" Carrot 0.0/0" Madison / 0.0/0" Fisher |
10-20 G30 Bridger |
W-SW | |||
| Thursday 10/10/19 |  |
0.7/14" Brackett 0.2/2" Shower 0.2/2" Lone |
0.4/9" Carrot 0.3/5" Madison / 0.1/1" Fisher |
5-15 | N-NE | Issued Early Season Bulletin |
|
| Wednesday 10/9/19 | 0.2/5" Alpine 0.1/2" Shower 0.1/2" Timber |
0.3/3" Carrot 0.4/5" Madison / 0.2/2" Fisher |
5-20 G30 Bridger |
NE | Wind slab and dry loose in Hyalite | ||
| Tuesday 10/8/19 | 0.0/0" Brackett 0.0/0" Shower 0.0/0" Lone |
0.0/0" Carrot 0.0/0" Madison / 0.0/0" Fisher |
15-25 G30-40 | W-SW | |||
| Monday 10/7/19 | 0.0/0" Brackett 0.0/0" Shower 0.0/0" Lone |
0.0/0" Carrot 0.0/0" Madison / 0.0/0" Fisher |
10-20 G25-30 | W-SW | |||
| Sunday 10/6/19 | 0.3/3" Alpine 0.1/1" Shower 0.1/1" Lone |
0.2/2" Carrot 0.1/1" Madison / 0.2/2" Fisher |
15-25 G30-40 | W-SW NW (Cooke) |
|||
| Saturday 10/5/19 | 0.1/1" Brackett 0.8/8" Shower 0.9/10" Lone |
0.2/2" Carrot 0.2/2" Madison / 0.4/4" Fisher |
15-20 G35 | WSW NW (Cooke) |
Whumph on The Sphinx | ||
| Friday 10/4/19 | 0.0/0" Brackett 0.0/0" Shower 0.0/0" Lone |
0.0/0" Carrot 0.0/0" Madison / 0.0/0" Fisher |
15-25 | WSW | |||
| Thursday 10/3/19 |  |
0.0/0" Brackett 0.1/1" Shower 0.0/0" Lone |
0.0/0" Carrot 0.0/0" Madison / 0.0/0" Fisher |
10-20 G30 | SW | Issued Early Season Bulletin |
|
| Wednesday 10/2/19 | 0.0/0" Brackett 0.1/1" Shower 0.2/3" Lone |
0.1/1" Carrot 0.2/2" Madison / 0.4/4" Fisher |
5-15 | SE-SW | |||
| Tuesday 10/1/19 | 0.1/2" Alpine 0.1/1" Shower 0.2/2" Lone |
0.2/2" Carrot 0.2/2" Madison / 0.2/2" Fisher |
5-15 | SW-SE | |||
| Monday 9/30/19 | 0.1/1" Brackett 0.3/3" Shower 0.1/1" Lone |
0.3/3" Carrot 0.3/3" Madison / 0.2/2" Fisher |
10-20 | WSW | |||
| Sunday 9/29/19 | 0.3/3" Brackett 0.1/2" Shower 0.1/1" Lone |
0.2/2" Carrot 0.3/1" Madison / 0.6/6" Fisher |
5-15 | E-SE | Small wind slab near Fairy Lake | ||
| Saturday 9/28/19 | 0.2/1" Brackett 0.0/0" Shower 0.0/0" Lone |
0.0/0" Carrot 0.0/0" Madison / 0.1/1" Fisher |
5-25 | NE-SE | |||
| Friday 9/27/19 | 0.2/0" Brackett 0.1/1" Shower 0.4/0" Lone |
0.0/0" Carrot 0.0/0" Madison / 0.3/0" Fisher |
5-15 | W | Precip: Rain/snow mix |
||
| Thursday 9/26/19 |  |
0.0/0" Brackett 0.0/0" Shower 0.0/0" Lone |
0.0/0" Carrot 0.0/0" Madison / 0.0/0" Fisher |
10-30 G50 Hyalite |
WSW | Issued Bulletin |
|
| Wednesday 9/25/19 | 0.0/0" Brackett 0.0/0" Shower 0.0/0" Lone |
0.0/0" Carrot 0.0/0" Madison / 0.0/0" Fisher |
15-35 (Cooke) |
WNW |
|||
| Tuesday 9/24/19 | 0.0/0" Brackett 0.0/0" Shower 0.0/0" Lone |
0.0/0" Carrot 0.0/0" Madison / 0.0/0" Fisher |
15-30 (Cooke) | SW | |||
| Monday 9/23/19 | 0.0/0" Brackett 0.0/0" Shower 0.0/0" Lone |
0.0/0" Carrot 0.0/0" Madison / 0.0/0" Fisher |
10-20 (Cooke) | W-SW | Wet Slides across Pine Creek trail | ||
| Sunday 9/22/19 | 0.1/1" Brackett 0.2/2" Shower 0.2/1" Lone |
0.1/1" Carrot 0.0/0" Madison / 0.2/2" Fisher |
5-20 (Cooke) | W | |||
| Saturday 9/21/19 | 0.1/1" Brackett 1.3/9" Shower 0.4/2" Lone |
0.5/5" Carrot 0.3/2" Madison / 0.7/5" Fisher |
5-10 (Cooke) | NW | FIRST SNOW in the mountains |