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 Northern Areas Southern Areas Wind Speed Wind Direction Avalanche Activity Notes
Wednesday 11/21/18 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
Tuesday 11/20/18 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-SW

High pressure. Small storm Fri-Sat. 

Monday 11/19/18 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 G40 W
Sunday 11/18/18 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 G40 Bridger W-SW

at 0600 inversion in Bridgers and Hyalite (teens mid mountain; 20F at ridgetop).

Saturday 11/17/18 0.5/7" Brackett
0.6/6" Shower
0.4/5" Timber
0.3/3" Carrot
0.1/1" Madison
0.2/2" Fisher
5-15 N-NE Skier triggered wet loose in Hyalite (Mt. Bole area)

NW flow favored northern areas. East winds are blowing 10-15 in the Bridger Range. 

Friday 11/16/18 0.0/0" Brackett
0.0/0" Shower
0.0/0" Timber
0.0/0" Carrot
0.0/0" Madison
0.0/0" Fisher
20-45 W-SW

Snow started around 6 am this morning. 

Thursday 11/15/18 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 W-SW

High pressure breaks down today, storm tomorrow. 

Wednesday 11/14/18 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 W-SW Snowmobile triggered slide, Lulu Pass Cooke City

Warm and windy today. 

Tuesday 11/13/18 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

High pressure breaks down later in the week. Good storm Friday. 

Monday 11/12/18 0.5/5" Bridger
0.2/2" Shower
0.1/1" Timber
0.2/2" Carrot
0.0/0" Madison
0.0/0" Fisher
5-15 G27 W-NW Skier Triggered Wind Slab, Bridger Range.;
Large natural in Headwaters at Big Sky

@0500: 0F at 9-10,000'

Sunday 11/11/18 0.3/3" Bridger
0.3/3" Shower
0.1/1" Timber
0.2/2" Carrot
0.0/0" Madison
0.1/1" Fisher
10-20 G30 NW Climber triggered wind slab in Flanders

@0500

Saturday 11/10/18 0.1/2" Bridger
0.2/2" Shower
0.1/2" Timber
0.2/2" Carrot
0.1/1" Madison
0.2/3" Fisher
15-25 G30-40
G54 Hyalite
W-SW Snowboarder triggered wind slab in Middle Basin

@ 0400

Friday 11/9/18 0.1/1" Brackett
0.0/0" Shower
0.0/0" Timber
0.0/0" Carrot
0.0/0" Madison
0.0/0" Fisher
15-25 W Small dry loose slides near Cooke;
Ice climber triggered small slab in Hyalite;
Small wind slabs beehive
Thursday 11/8/18 0.2/3" Bridger
0.2/3" Shower
0.4/7" Lone
0.2/2" Carrot
0.2/3" Black Bear
0.0/0" Fisher
10-20 G30 W-NW

Overnight temps in single digits F.

Wednesday 11/7/18 0.5/6" Bridger
0.6/6" Shower
0.5/4" Lone
0.2/2" Carrot
0.2/4" Madison
0.5/6" Fisher
5-15 W-SW Natural wind slab near Hyalite peak;
Multiple crowns up Hyalite
Tuesday 11/6/18 0.7/10" Bridger
0.6/6" Shower
0.5/9" Timber
0.2/2" Carrot
0.1/1" Madison
0.3/4" Fisher
10-20 W Many small 8" soft slabs in Hyalite;
Several naturals at Bridger Bowl;
Explosive triggered slide at Big Sky

@7am still snowing

Monday 11/5/18 1.6/7" Brackett
0.8/5" Shower
0.8/6" Timber
0.8/6" Carrot
0.6/5" Madison
0.7/6" Fisher
20-40 G60 W

SWE and snowfall are not lining up because some wx sites are near freezing line.

Sunday 11/4/18 0.5/5" Brackett
0.4/4" Shower
0.2/1" Lone
0.2/1" Carrot
0.1/1" Madison
0.1/2" Fisher
15-25 G40 W-SW

@0630 winds increasing; precip starting

Saturday 11/3/18 0.7/5" Brackett
0.3/3" Shower
0.4/4" Timber
0.4/5" Carrot
0.2/2" Madison
0.4/2" Fisher
25-30 G60 W

Put out forecast.

Friday 11/2/18 1.3/3" Brackett
0.5/3" Shower
0.5/3" Lone
0.4/4" Carrot
0.2/2" Madison
0.7/5" Fisher
15-25 G48 W Avalanche in Big Couloir at Big Sky;
Multiple avalanches in the N. Bridger Range

Put out Forecast.

Thursday 11/1/18 0.8/8" Brackett
0.4/6" Shower
0.2/2" Lone
0.4/4" Carrot
0.4/4" Madison
0.6/6" Fisher
15-35 W

Wx recorded from 0500 pull.

Wednesday 10/31/18 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 W-SW
Tuesday 10/30/18 0.2/2" Brackett
0.5/5" Shower
0.1/1" Timber
0.0/0" Carrot
0.0/0" Madison
0.1/1" Fisher
5-15 G30 W

@0900

Monday 10/29/18 0.3/2" Brackett
0.3/3" Shower
0.3/3" Timber
0.0/0" Carrot
0.2/2" Madison
0.1/1" Fisher
10-15 G30 SW
Sunday 10/28/18 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 G40 SW
Saturday 10/27/18 0.0/0" Brackett
0.1/0" Shower
0.3/0" Timber
0.2/0" Carrot
0.0/0" Madison
0.4/0" Fisher
20-40 W-SW
Friday 10/26/18 0.0/0" Bridger
0.0/0" Shower
0.0/0" Lone
0.0/0" Carrot
0.0/0" Madison
0.0/0" Fisher
15-20 G40 W-SW

Light rain.

Thursday 10/25/18 0.0/0" Alpine
0.0/0" Shower
0.0/1" Timber
0.0/0" Carrot
0.0/0" Madison
0.0/0" Fisher
5-15 W-SW

Light precip around Big Sky

Wednesday 10/24/18 0.0/0" Alpine
0.0/0" Shower
0.0/0" Timber
0.0/0" Carrot
0.0/0" Madison
0.0/0" Fisher
5-15 W-SW
Monday 10/22/18 0.0/0" Alpine
0.0/0" Shower
0.0/0" Timber
0.0/0" Carrot
0.0/0" Madison
0.0/0" Fisher
5-15 S-SE

Warm and dry! 

Sunday 10/21/18 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 W-SW
Saturday 10/20/18 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
Friday 10/19/18 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 W

High Pressure; high temps of 45F at 9400'

Thursday 10/18/18 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 SW

Extended High Pressure 

Wednesday 10/17/18 0.0/0" Bridger
0.0/0" Shower
0.0/0" Lone
0.0/0" Carrot
0.0/0" Madison
0.0/0" Fisher
5-15 E
Tuesday 10/16/18 0.0/0" Bridger
0.0/0" Shower
0.0/0" Timber
0.0/0" Carrot
0.0/0" Lionhead
0.0/0" Fisher
5-10 E-NE
Monday 10/15/18 0.0/0" Alpine
0.0/0" Shower
0.0/0" Lone
0.0/0" Carrot
0.0/0" Madison
0.0/0" Fisher
5-15
G30 Alpine
W-SW
Sunday 10/14/18 0.2/2" Bridger
0.1/1" Shower
0.2/2" Lone
0.2/2" Carrot
0.0/0" Madison
0.2/2" Fisher
10-15 NW-W
Saturday 10/13/18 0.4/5" Bridger
0.2/2" Shower
0.2/3" Lone
0.3/3" Carrot
0.2/2" Madison
0.3/3" Fisher
5-15 W-NW
Friday 10/12/18 0.1/1" Brackett
0.0/0" Shower
0.0/0" Lone
0.0/0" Carrot
0.0/0" Madison
0.1/1" Fisher
15-25 G30 SW
Thursday 10/11/18 0.1/1" Bridger
0.1/1" Shower
0.0/0" Lone
0.2/2" Carrot
0.2/3" Madison
0.1/1" Fisher
5-10 WSW
Wednesday 10/10/18 0.6/7" Brackett
0.1/1" Shower
0.5/5" Timber
0.4/4" Carrot
0.1/1" Madison
0.1/1" Fisher
5-15 E-NE
Sunday 10/7/18 0.2/2" Bridger
0.6/0" Shower
0.2/2" Lone
0.2/2" Carrot
0.1/1" Madison
0.2/2" Fisher
5-10 NNE

@ 1400

Friday 10/5/18 0.8/7" Bridger
0.8/6" Shower
0.6/4" Lone
0.4/4" Carrot
0.4/2" Madison
0.4/2" Fisher
5-15 G20 W-SW
NW Lionhead

FIRST REAL ENTRY

Taken @1500