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 11/29/21 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 G 60 W

Near to above freezing temperatures for 24hours

Sunday 11/28/21 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 G 45 W
Saturday 11/27/21 0.1/1" Brackett
0.0/0" Shower
0.1/2" Timber
0.1/1" Carrot
0.0/0" Madison
0.0/0" Fisher
10-20 G 40
G 60 Bridger Ridge
W-SW
Friday 11/26/21 0.0/0" Brackett
0.0/0" Shower
0.0/0" Lone
0.2/2" Carrot
0.0/0" Madison
0.0/0" Fisher
15-25 G35-50 SW-NW
Thursday 11/25/21 0.0/0" Brackett
0.1/1" Shower
0.2/2" Lobo
0.2/2" Carrot
0.0/0" Madison
0.0/2" Fisher
10-25 G35-45 W-SW Explosive Triggered Wind Slabs at Big Sky Resort
Wednesday 11/24/21 0.4/5" Bridger
0.4/4" Shower
0.3/6" Timber
0.3/3" Carrot
0.3/3" Madison
0.3/4" Fisher
10-15
G25-30
G40Bridger
W-NW Shooting Cracks Mt Blackmore

14-16" new snow reported on South Face of Lone Peak.

Tuesday 11/23/21 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 G47 W-SW
Monday 11/22/21 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 G30-50 W-SW
Sunday 11/21/21 0.0/0" Brackett
0.0/0" Shower
0.0/0" Timber
0.0/0" Carrot
0.0/0" Madison
0.0/0" Fisher
15-30 G50 W Natural avalanche and powder cloud on Black Mtn
Saturday 11/20/21 0.6/6" Brackett
0.8/10" Shower
0.5/6" Timber
0.4/5" Carrot
0.6/7" Madison
0.4/4" Fisher
10-15 G30 W
Friday 11/19/21 0.0/0" Brackett
0.0/0" Shower
0.2/2" Timber
0.2/2" Carrot
0.2/2" Madison
0.0/0" Fisher
10-25 G35-45 SW-W
Thursday 11/18/21 0.0/0" Brackett
0.1/1" Shower
0.0/0" Timber
0.0/0" Carrot
0.0/0" Madison
0.0/0" Fisher
10-15 G30 SW-NW
Wednesday 11/17/21 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 G 60 W
Tuesday 11/16/21 0.0/0" Brackett
0.0/0" Shower
0.0/0" Timber
0.0/0" Carrot
0.0/0" Madison
0.0/0" Fisher
25-35 G 75 SW-W
Monday 11/15/21 0.0/0" Brackett
0.0/0" Shower
0.0/0" Lone
0.0/0" Carrot
0.0/0" Madison
0.2/2" Fisher
20-25 G 65 W-SW Natural avalanches (on persistent weak layer) near Cooke

Generally above freezing temps for 24hrs

Sunday 11/14/21 0.0/0" Brackett
0.0/0" Shower
0.0/0" Lone
0.1/1" Carrot
0.0/0" Madison
0.6/3" Fisher
15-25
G40-50
W-SW
Saturday 11/13/21 0.0/0" Brackett
0.0/0" Shower
0.0/0" Timber
0.1/1" Carrot
0.0/0" Madison
0.2/2" Fisher
15-25
G30-59
W
SW-Cooke
Friday 11/12/21 0.2/2" Brackett
0.4/4" Shower
0.1/1" Timber
0.1/1" Carrot
0.2/2" Madison
0.2/2" Fisher
15-20
G35-40
NW-SW
NW-Cooke
Thursday 11/11/21 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
G35-40
W-NW
Wednesday 11/10/21 1.0/7" Brackett
0.5/5" Shower
0.5/6" Timber
0.9/9" Carrot
0.6/5" Madison
0.7/4" Fisher
10-15 G35 SW-W-NW Natural on Saddle Peak;
Natural wind slabs on Scotch Bonnet
Tuesday 11/9/21 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 G45 S-SW-W
Monday 11/8/21 0.0/0" Brackett
0.0/0" Shower
0.0/0" Timber
0.2/2" Carrot
0.2/2" Madison
0.2/2" Fisher
5-15 G25-35 SW-W
Sunday 11/7/21 1.2/9" Brackett
0.2/2" Shower
0.1/1" Timber
0.9/6" Carrot
0.8/7" Madison
0.6/6" Fisher
15-25
G45-60
SW Skier caught in slough in the The Great One
Saturday 11/6/21 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 G40-55 W-SW-S
Friday 11/5/21 0.1/0" Brackett
0.2/2" Shower
0.2/2" Timber
0.2/2" Carrot
0.0/0" Madison
0.3/2" Fisher
15-25 G40-60 W-SW

Rain transitioned to an inch or two of snow up high.

Thursday 11/4/21 0.0/0" Brackett
0.0/0" Shower
0.0/0" Lone
0.0/0" Carrot
0.0/0" Madison
0.0/0" Fisher
10-15 G25 W-WSW
Wednesday 11/3/21 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
Tuesday 11/2/21 0.0/0" Brackett
0.0/0" Shower
0.0/0" Lone
0.0/0" Carrot
0.0/0" Madison
0.0/0" Fisher
5-10
G20
W-SW
Monday 11/1/21 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 Bridger
W
ESE-Bridger
Sunday 10/31/21 0.0/0" Sacajewea
0.0/0" Shower
0.0/0" Lone
0.0/0" Carrot
0.0/0" Madison
0.0/0" Fisher
5-10 G25 W
E-Bridger
Saturday 10/30/21 0.2/0" Sacajewea
0.2/0" Shower
0.1/0" Lone
0.0/0" Carrot
0.0/0" Madison
0.2/0" Fisher
10-25 G35-50 SW-W

Mostly rain. An inch of snow at highest elevations.

Friday 10/29/21 0.0/0" Sacajewea
0.0/0" Shower
0.0/0" Lone
0.0/0" Carrot
0.0/0" Madison
0.0/0" Fisher
15-25 G35-55 WSW
Thursday 10/28/21 0.0/0" Sacajewea
0.0/0" Shower
0.0/0" Lone
0.0/0" Carrot
0.0/0" Madison
0.0/0" Fisher
15 G25-35 W-SW
Wednesday 10/27/21 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
G30-40 LH/Lulu
WSW
Tuesday 10/26/21 0.2/3" Brackett
0.4/3" Shower
0.4/5" Lone
0.3/3" Carrot
0.2/2" Madison
0.1/1" Fisher
5-20 G45-55 SSW

Rain transitioning to snow overnight.

Monday 10/25/21 0.0/0" Brackett
0.0/0" Shower
0.0/0" Lone
0.3/3" Carrot
0.0/0" Madison
0.0/0" Fisher
10-25
G50 Lulu/LH
WSW
ESE-Bridger
Sunday 10/24/21 0.0/0" Brackett
0.0/0" Shower
0.0/0" Lone
0.3/4" Carrot
0.3/3" Madison
0.1/0" Fisher
10-20 G35 W-SW

@0600

Saturday 10/23/21 0.0/0" Brackett
0.0/0" Shower
0.0/0" Lone
0.0/0" Carrot
0.0/0" Madison
0.0/0" Fisher
20-30 G70 SW
Friday 10/22/21 0.0/0" Sacajewea
0.0/0" Shower
0.0/0" Lone
0.0/0" Carrot
0.0/0" Madison
0.0/0" Fisher
10-25 G33 WSW
Thursday 10/21/21 0.0/0" Sacajewea
0.0/0" Shower
0.0/0" Lone
0.0/0" Carrot
0.0/0" Madison
0.0/0" Fisher
10 G30 SW
Wednesday 10/20/21 0.0/0" Sacajewea
0.0/0" Shower
0.0/0" Lone
0.0/0" Carrot
0.0/0" Madison
0.0/0" Fisher
5-10 G25 WSW
ENE-Cooke
Tuesday 10/19/21 0.0/0" Sacajewea
0.0/0" Shower
0.0/0" Lone
0.0/0" Carrot
0.0/0" Madison
0.0/0" Fisher
10-35
G50 Bridger
ESE Bridger
NE Cooke
Monday 10/18/21 0.0/0" Sacajewea
0.0/0" Shower
0.0/0" Lone
0.0/0" Carrot
0.0/0" Madison
0.0/0" Fisher
5-15 G30 SSW
Sunday 10/17/21 0.0/0" Sacajewea
0.0/0" Shower
0.0/0" Lone
0.0/0" Carrot
0.0/0" Madison
0.0/0" Fisher
5-15 G20 SW
Saturday 10/16/21 0.0/0" Sacajewea
0.0/0" Shower
0.0/0" Lone
0.0/0" Carrot
0.0/0" Madison
0.0/0" Fisher
5-15 G25 W
Friday 10/15/21 0.2/2" Sacajewea
0.1/1" Shower
0.1/1" Lone
0.1/1" Carrot
0.0/0" Madison
0.0/0" Fisher
15-20
G30-45
W-NW
Thursday 10/14/21 0.2/2" Sacajewea
0.1/1" Shower
0.1/1" Lone
0.1/1" Carrot
0.2/2" Madison
0.1/1" Fisher
10-15
G25-35
W
Wednesday 10/13/21 0.1/1" Sacajewea
0.1/1" Shower
0.1/1" Lone
0.1/1" Carrot
0.1/1" Madison
0.1/1" Fisher
10-25 G35 ESE

28" storm total reported at Midway Bridger

Tuesday 10/12/21 0.9/10" Sacajewea
0.8/9" Shower
0.4/5" Lone
1.3/12" Carrot
0.9/9" Madison
0.4/5" Fisher
40 G60 @Bridgers E

@0600

Monday 10/11/21 0.3/2" Sacajewea
0.6/5" Shower
0.5/3" Lone
0.3/3" Carrot
0.1/0" Madison
0.1/1" Fisher
15 G25 @Bridger W

@0600 (some snow on ground above ~9,000’ prior to this storm.)