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 |
|---|---|---|---|---|---|---|---|
| Wednesday 11/25/20 | 0.0/0" Brackett 0.0/0" Shower 0.0/0" Timber |
0.1/1" Carrot 0.1/1" Madison 0.1/2" Fisher |
10-20 G 25-45 | W-SW | |||
| Tuesday 11/24/20 | 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 Bridgers G40 | W-NW | |||
| Monday 11/23/20 | 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 G20-30 | SW-W | |||
| Sunday 11/22/20 | 0.0/0" Brackett 0.0/0" Shower 0.0/0" Lone |
0.0/0" Carrot 0.0/0" Madison 0.0/0" Fisher |
10-25 G25-45 | SW-NW | |||
| Saturday 11/21/20 | 0.0/0" Brackett 0.0/0" Shower 0.0/0" Lone |
0.0/0" Carrot 0.0/0" Madison 0.0/0" Fisher |
10-15 G20-35 | W-NW | |||
| Friday 11/20/20 | 0.1/2" Brackett 0.2/2" Shower 0.1/1" Timber |
0.1/1" Carrot 0.2/1" Madison 0.3/3" Fisher |
10-15 G30-40 | SW-NW | |||
| Thursday 11/19/20 | 0.6/4" Alpine 0.2/2" Shower 0.3/3" Lone |
0.7/3" Carrot 0.8/6" Madison 0.8/6" Fisher |
15-20 G35-50 | W-SW | |||
| Wednesday 11/18/20 | 0.0/0" Brackett 0.0/0" Shower 0.0/0" Timber |
0.0/0" Carrot 0.0/0" Madison 0.0/0" Fisher |
15-25 G45-60 | S-SW | |||
| Tuesday 11/17/20 | 0.0/0" Brackett 0.0/0" Shower 0.0/0" Timber |
0.0/0" Carrot 0.0/0" Madison 0.2/2" Fisher |
10-20 G30-45 | SW-W | |||
| Monday 11/16/20 | 0.0/0" Brackett 0.0/0" Shower 0.0/0" Timber |
0.0/0" Carrot 0.1/1" Madison 0.2/2" Fisher |
15-20 G35-60 | SW-W | |||
| Sunday 11/15/20 | 0.0/0" Brackett 0.0/0" Shower 0.1/1" Lone |
0.2/2" Carrot 0.3/3" Madison 0.2/2" Fisher |
15-25 G30-50 | W-SW | |||
| Saturday 11/14/20 | 0.2/1" Brackett 0.2/2" Shower 0.4/4" Timber |
1.2/12" Carrot 1.0/10" Madison 0.8/9" Fisher |
20-30 G45-75 |
W | |||
| Friday 11/13/20 | 0.0/0" Brackett 0.0/0" Shower 0.0/0" Timber |
0.0/0" Carrot 0.0/0" Madison 0.0/0" Fisher |
15-30 G30-50 | SW-W | |||
| Thursday 11/12/20 | 0.2/3" Brackett 0.3/4" Shower 0.1/2" Lone |
0.0/0" Carrot 0.0/0" Madison 0.1/1" Fisher |
15-30 G50 Bridgers |
W | Small skier triggered slides in Northern Bridgers | ||
| Wednesday 11/11/20 | 0.2/3" Brackett 0.1/1" Shower 0.1/1" Lone |
0.1/1" Carrot 0.2/3" Madison 0.2/2" Fisher |
10-20 G35-50 | SW-W | |||
| Tuesday 11/10/20 | 0.1/0" Brackett 0.0/0" Shower 0.0/0" Timber |
0.0/0" Carrot 0.0/0" Madison 0.0/0" Fisher |
10-20 G35-55 | SW-NW | |||
| Monday 11/9/20 | 0.1/2" Alpine 0.1/2" Shower 0.2/2" Lone |
0.1/1" Carrot 0.3/4" Madison 0.3/4" Fisher |
10-15 G25 | E-S-SW-W W-NW Cooke |
|||
| Sunday 11/8/20 | 0.5/4" Alpine 0.5/3" Shower 0.4/3" Lone |
0.4/3" Carrot 0.3/3" Madison 0.9/9" Fisher |
5-20 G25-45 |
ENE-E-SE-S |
|||
| Saturday 11/7/20 | 0.0/0" Brackett 0.0/0" Shower 0.0/0" Timber |
0.0/0" Carrot 0.0/0" Madison 0.0/0" Fisher |
15-25 G50 | S-SW | |||
| Friday 11/6/20 | 0.0/0" Brackett 0.0/0" Shower 0.0/0" Timber |
0.0/0" Carrot 0.0/0" Madison 0.0/0" Fisher |
10-35 G50 | SW-W | |||
| Thursday 11/5/20 | 0.0/0" Brackett 0.0/0" Shower 0.0/0" Timber |
0.0/0" Carrot 0.0/0" Madison 0.0/0" Fisher |
15-25 G30-50 | W-SW NW-Cooke |
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| Wednesday 11/4/20 | 0.0/0" Brackett 0.0/0" Shower 0.0/0" Lone |
0.0/0" Carrot 0.0/0" Madison 0.0/0" Fisher |
15-25 G45 | W-SW | |||
| Tuesday 11/3/20 | 0.0/0" Brackett 0.0/0" Shower 0.0/0" Timber |
0.0/0" Carrot 0.0/0" Madison 0.0/0" Fisher |
10-15 G30 | W-SW | |||
| Monday 11/2/20 | 0.0/0" Brackett 0.0/0" Shower 0.0/0" Timber |
0.0/0" Carrot 0.0/0" Madison 0.0/0" Fisher |
10-15 G25 | SW-W | |||
| Sunday 11/1/20 | 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 | W-SW NW-Cooke |
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| Saturday 10/31/20 | 0.0/0" Brackett 0.0/0" Shower 0.0/0" Timber |
0.0/0" Carrot 0.0/0" Madison 0.0/0" Fisher |
15-25 G30-60 | W-SW | Natural wind slab avalanches near Cooke | ||
| Friday 10/30/20 | 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 G40 5-15 G20 Cooke |
W-SW SW-N Cooke |
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| Thursday 10/29/20 | 0.0/0" Brackett 0.0/0" Shower 0.0/0" Lone |
0.0/0" Carrot 0.0/0" Madison 0.0/0" Fisher |
15-25 G45 5-15 G25 Cooke City |
W W-NW Cooke City |
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| Wednesday 10/28/20 | 0.0/0" Brackett 0.0/0" Shower 0.0/0" Timber |
0.0/0" Carrot 0.0/0" Madison 0.0/0" Fisher |
15-25 G40 G50 Bridger |
W-NW | |||
| Tuesday 10/27/20 | 0.0/0" Brackett 0.0/0" Shower 0.0/0" Lone |
0.0/0" Carrot 0.0/0" Madison 0.0/0" Fisher |
15-30 30-50 Bridger |
W-SW | |||
| Monday 10/26/20 | 0.0/0" Brackett 0.0/0" Shower 0.0/0" Lone |
0.0/0" Carrot 0.0/0" Madison 0.0/0" Fisher |
15-25 G35 | W-NW | Skier triggered wind slab at Bridger | ||
| Sunday 10/25/20 | 0.3/4" Brackett 0.2/3" Shower 0.1/1" Timber |
0.3/3" Carrot 0.2/2" Madison 0.3/3" Fisher |
10-20 35 G60 Bridger |
SE-NE | |||
| Saturday 10/24/20 | 0.7/6" Alpine 0.4/3" Shower 0.3/3" Timber |
0.6/5" Carrot 0.4/4" Madison 0.7/6" Fisher |
10-25 G45 |
W-SW | Cracking wind drifts in Cooke City | ||
| Friday 10/23/20 | 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 | WSW NW-Cooke |
Avalanches and cracking in Frazier Basin; Small avalanche on Sphinx Mountain; Loose snow avalanches on Blackmore |
||
| Thursday 10/22/20 | 0.4/8" Alpine 0.3/3" Shower 0.0/2" Timber |
0.0/0" Carrot 0.5/3" Madison 0.8/4" Fisher |
5-15 G30 | W-NW | Widespread dry loose in Hyalite | ||
| Wednesday 10/21/20 | 0.0/0" Brackett 0.0/0" Shower 0.0/0" Lone |
0.0/0" Carrot 0.0/0" Madison 0.9/6" Fisher |
15-20 G35-40 | NW-W | |||
| Tuesday 10/20/20 | 0.2/2" Brackett 0.7/5" Shower 0.0/0" Lone |
0.0/0" Carrot 0.0/0" Madison 0.8/6" Fisher |
15-20 G 40-50 | SW-NW | @0700 |
||
| Monday 10/19/20 | 1.1/5" Brackett 1.1/5" Shower 0.3/3" Lone |
0.7/4" Carrot 0.2/1" Madison 1.3/9" Fisher |
10-20 G40-50 | NW-W | Natural avalanches near Fairy Lake | ||
| Sunday 10/18/20 | 0.4/3" Brackett 0.4/3" Shower 0.1/1" Lone |
0.0/0" Carrot 0.0/0" Madison 0.5/4" Fisher |
15-30 G50 | NW-W | |||
| Saturday 10/17/20 | 0.2/0" Brackett 0.5/0" Shower 0.2/0" Lone |
0.0/0" Carrot 0.0/0" Lionhead 1.0/4" Fisher |
20-30 G50 | W | Precip mostly rain overnight 10/16. Temps dropping and switching to snow on morning of 10/17. |
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| Friday 10/16/20 | 0.2/2" Brackett 0.3/3" Shower 0.1/1" Lone |
0.0/0" Carrot 0.0/0" Madison 0.2/2" Fisher |
15-25 G40 |
W NW Cooke |
@0600 |
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| Thursday 10/15/20 | 0.2/3" Brackett 0.5/5" Shower 0.1/1" Lone |
0.0/0" Carrot 0.0/0" Madison 0.2/2" Fisher |
10-20 G30-40 | W-NW | @0600 |
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| Wednesday 10/14/20 | 0.9/0" Brackett 0.7/0" Shower 0.5/0" Timber |
0.2/0" Carrot 0.2/0" Madison 1.6/3" Fisher |
30-40 G50-70 G80 Hyalite |
W | Precip mostly rain evening 10/13, some wet snow high near Cooke. |
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| Tuesday 10/13/20 | 0.0/0" Brackett 0.0/0" Shower 0.0/0" Timber |
0.0/0" Carrot 0.0/0" Madison 0.1/1" Fisher |
15-30 | W-SW | |||
| Monday 10/12/20 | 0.0/0" Brackett 0.0/0" Shower 0.0/0" Timber |
0.0/0" Carrot 0.0/0" Madison 0.2/2" Fisher |
20-50 | W-SW | |||
| Sunday 10/11/20 | 0.6/0" Brackett 0.7/1" Shower 0.6/0" Lone |
0.6/1" Carrot 0.7/0" Madison 0.7/6" Fisher |
@1pm: Measurements are Preciptation (inches) instead of SWE. Lower elevations had rain, and snow depths varied from 0-6". |