Northern Madison

Yellowstone Club Base

The Yellowstone Base Area weather station is located at elevation 7300 ft. The site measures air temp, relative humidity, snow accumulations, and snow water content. Wind speed and direction are measured on tower 2 of the Lodge Lift. The 24 hr snow sensor is swept clear each day.

Click here to see the raw weather data.

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Date Hour Avg Speed Avg Dir Max Gust Avg Temp Avg RH Barom H2O New Snow Total Snow
4 19 1300 0 N - 0 0 31 49 30.13 0.00 -6999 11.1
4 19 1200 0 N - 0 0 26 63 30.14 0.00 -6999 11.2
4 19 1100 0 N - 0 0 26 62 30.14 0.00 -6999 11.2
4 19 1000 0 N - 0 0 25 67 30.13 0.00 -6999 11.2
4 19 900 0 N - 0 0 19 80 30.13 0.00 -6999 11.2
4 19 800 0 N - 0 0 16 89 30.13 0.00 -6999 11.2
4 19 700 0 N - 0 0 15 92 30.12 0.00 -6999 11.2
4 19 600 0 N - 0 0 16 91 30.11 0.00 -6999 11.2
4 19 500 0 N - 0 0 16 91 30.11 0.00 -6999 11.3
4 19 400 0 N - 0 0 14 90 30.11 0.00 -6999 11.2
4 19 300 0 N - 0 0 15 87 30.10 0.00 -6999 11.2
4 19 200 0 N - 0 0 15 87 30.10 0.00 -6999 11.2
4 19 100 0 N - 0 0 16 86 30.11 0.00 -6999 11.2
4 18 2400 0 N - 0 0 16 86 30.11 0.00 -6999 11.2
4 18 2300 0 N - 0 0 17 85 30.10 0.00 -6999 11.2
4 18 2200 0 N - 0 0 19 84 30.10 0.00 -6999 11.2
4 18 2100 0 N - 0 0 22 81 30.09 0.00 -6999 11.3
4 18 2000 0 N - 0 0 26 68 30.07 0.00 -6999 11.2
4 18 1900 0 N - 0 0 29 62 30.08 0.00 -6999 11.2
4 18 1800 0 N - 0 0 31 45 30.08 0.00 -6999 11.3
4 18 1700 0 N - 0 0 30 52 30.09 0.00 -6999 11.4
4 18 1600 0 N - 0 0 31 52 30.09 0.00 -6999 11.5
4 18 1500 0 N - 0 0 31 50 30.10 0.00 -6999 11.7
4 18 1400 0 N - 0 0 31 50 30.11 0.00 -6999 11.8
4 18 1300 0 N - 0 0 29 51 30.12 0.00 -6999 11.3
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American Spirit Station

The American Spirit site measures air temperture, relative humidity, and wind at an elevation of 8850 feet. In addition, the site measures incoming long and short wave radiation. Click here if data have not updated recently.

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Date Hour Avg Speed Avg Dir Max Gust Avg Temp Avg RH
4 19 1300 4 E - 93 9 20 65
4 19 1200 5 E - 95 9 17 73
4 19 1100 6 E - 109 10 15 78
4 19 1000 4 SE - 115 10 15 83
4 19 900 2 SE - 116 5 12 89
4 19 800 3 SE - 132 5 10 89
4 19 700 3 SE - 138 5 9 89
4 19 600 4 SE - 144 7 10 89
4 19 500 6 SE - 142 10 10 90
4 19 400 6 SE - 142 10 11 91
4 19 300 1 E - 112 5 13 87
4 19 200 4 SE - 139 6 14 84
4 19 100 4 SE - 140 7 14 83
4 18 2400 7 SE - 150 9 14 87
4 18 2300 5 SE - 151 8 15 85
4 18 2200 7 SE - 147 10 16 78
4 18 2100 4 S - 158 6 16 77
4 18 2000 5 SE - 138 7 19 73
4 18 1900 2 E - 72 8 24 49
4 18 1800 5 N - 354 10 22 50
4 18 1700 10 NW - 328 15 20 59
4 18 1600 9 NW - 330 20 21 61
4 18 1500 3 E - 70 8 20 70
4 18 1400 3 E - 81 8 18 73
4 18 1300 4 E - 87 9 17 74
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Andesite Weather Station

The Andesite weather station is located on top of Andesite Mt at elevation 8850 ft. The site measures air temp, snow accumlations, and snow water content. Wind speed and direction are measured on tower 19 of the Meadow Lift. The 24 hr snow sensor is swept clear each day.

Click HERE if the data below hasn't updated.

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Date Hour Avg Speed Avg Dir Max Gust Avg Temp New Snow Total Snow
4 19 1300 4 SE - 129 8 21 -6999 37.8
4 19 1200 4 E - 106 7 17 -6999 38.2
4 19 1100 4 E - 94 8 15 -6999 38.2
4 19 1000 4 SE - 121 9 15 -6999 38.1
4 19 900 1 SE - 137 5 13 -6999 38.2
4 19 800 2 S - 177 4 9 -6999 38.3
4 19 700 3 S - 197 5 8 -6999 38.4
4 19 600 3 SW - 207 5 9 -6999 38.3
4 19 500 4 S - 192 6 9 -6999 38.4
4 19 400 4 SE - 124 6 9 -6999 38.5
4 19 300 4 E - 92 6 10 -6999 38.6
4 19 200 4 SE - 115 6 11 -6999 38.6
4 19 100 4 E - 101 6 12 -6999 38.6
4 18 2400 3 E - 106 5 11 -6999 38.8
4 18 2300 3 SE - 148 5 12 -6999 38.7
4 18 2200 4 SE - 120 6 13 -6999 38.9
4 18 2100 3 SE - 141 5 14 -6999 38.9
4 18 2000 2 N - 5 6 17 -6999 38.8
4 18 1900 2 NE - 41 5 20 -6999 38.7
4 18 1800 3 W - 252 8 22 -6999 38.6
4 18 1700 4 W - 255 11 25 -6999 38.6
4 18 1600 4 W - 288 10 24 -6999 39.2
4 18 1500 3 N - 346 8 24 -6999 39.2
4 18 1400 3 N - 19 8 19 -6999 39.4
4 18 1300 3 NE - 32 7 20 -6999 39.4
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Timber Station

The Timberline Study Plot is located at elevation 9400 ft. The site provides measurements of air temp, relative humidity, snow accumlations, and snow water content. Wind speed and direction are measured at the top of the Pioneer Ridge (RIDGE, 9800 ft). The 24 hr snow sensor is swept clear each day. Click here if data have not updated recently. Original data file.

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Date Hour Ridge Speed Ridge Dir Ridge Gust TW 26 Speed TW 26 Dir TW 26 Gust Avg Temp Avg RH H2O New Snow Total Snow
4 19 1300 1 NE - 47 8 1 NE - 33 9 20 90 0.00 0 60.7
4 19 1200 0 NE - 62 7 2 NE - 56 8 17 91 0.00 0 60.7
4 19 1100 2 NE - 51 9 2 NE - 51 9 16 90 0.00 0 60.8
4 19 1000 0 NE - 55 6 0 NE - 66 6 14 90 0.00 0 60.8
4 19 900 2 NE - 59 8 0 NE - 60 3 10 91 0.00 0 60.9
4 19 800 3 E - 89 8 0 SE - 124 3 8 92 0.00 0 61.0
4 19 700 3 E - 92 7 0 SE - 137 1 8 91 0.00 0 61.1
4 19 600 2 E - 97 7 0 SE - 140 4 9 92 0.00 0 61.1
4 19 500 1 SE - 116 5 2 SE - 139 7 8 92 0.00 0 61.2
4 19 400 1 E - 92 5 0 SE - 117 5 8 92 0.00 0 61.4
4 19 300 4 E - 70 7 -0 E - 112 0 9 92 0.00 0 61.5
4 19 200 7 E - 74 9 0 E - 103 3 9 92 0.00 0 61.5
4 19 100 5 E - 95 7 1 SE - 126 4 9 93 0.00 0 61.6
4 18 2400 6 E - 86 8 2 SE - 123 5 9 93 0.00 0 61.7
4 18 2300 6 E - 90 9 1 SE - 129 4 10 93 0.00 0 61.8
4 18 2200 7 E - 88 12 2 SE - 119 7 10 93 0.00 0 61.9
4 18 2100 0 NW - 307 3 0 S - 179 3 11 93 0.00 0 61.9
4 18 2000 2 N - 19 6 0 NE - 54 3 13 93 0.00 0 61.9
4 18 1900 0 NE - 52 7 0 N - 339 5 16 93 0.00 0 62.0
4 18 1800 3 SW - 227 10 0 W - 249 8 21 93 0.00 0 61.8
4 18 1700 6 SW - 240 15 1 NW - 314 9 22 93 0.00 0 62.0
4 18 1600 6 W - 259 12 2 NW - 322 13 27 92 0.00 0 61.9
4 18 1500 2 W - 257 12 0 NE - 60 6 21 93 0.00 0 62.2
4 18 1400 2 NE - 34 7 0 NE - 45 8 20 93 0.00 0 62.3
4 18 1300 1 NE - 25 7 1 NE - 39 9 20 92 0.00 0 62.4
.

Wet loose avalanches in Beehive and Bear Basins

Date
Activity
Skiing

We saw several loose avalanches on WSW, ESE & SSE aspects of the ridge between beehive and bear basin.  The one on the ESE slope may have been skier triggered (by another group) and the rest appeared to be natural.  We found a strong crust beneath the foot of new snow throughout our route.  We didn't see any cracks or whumphs, and the new snow wasn't reactive in hand pits.  The snow surface was getting wet as we exited to the beehive trailhead around 3pm.

Region
Northern Madison
Location (from list)
Beehive Basin

Remote trigger in little bear

Date
Activity
Snowmobiling

From IG message 4/17/24: "Remote trigger up little bear today. Went to the groundish."

Region
Northern Gallatin
Location (from list)
NORTHERN GALLATIN RANGE
Observer Name
Loren Griswold

Remotely triggered, wet slab avalanche in the Taylor Fork

Taylor Fork
Northern Madison
Code
WS-AMr-R2-D2-O
Elevation
8600
Aspect
E
Latitude
45.06070
Longitude
-111.27200
Notes

From IG: A group of riders noted very wet snow west of Cabin Creek and Southwest of the Taylor Fork. They were sinking to the ground where it was unconsolidated. The group remotely triggered a wet slab avalanche from the ridge top. There were shooting cracks that connected their location to the avalanche. This is an interesting of persistent weak layer and wet snow avalanche problems. 

Number of slides
1
Number caught
0
Number buried
0
Avalanche Type
Wet slab avalanche
Trigger
Snowmobile
Trigger Modifier
r-A remote avalanche released by the indicated trigger
R size
2
D size
2
Bed Surface
O - Old snow
Problem Type
Wet Snow
Vertical Fall
100ft
Slab Width
100.00ft
Images
Shooting crack west of cabin Creek 2
Remotely triggered wet slab avalanche West of cabin Creek
Snow Observation Source
Remotely triggered wet slab Taylor Fork
Slab Thickness units
centimeters
Single / Multiple / Red Flag
Single Avalanche
Advisory Year
23-24

A group remotely triggered a wet slab avalanche from the ridge top. There were shooting cracks that connected their location to the avalanche. This is an interesting of persistent weak layer and wet snow avalanche problems. Photo: M Harry 

Avalanche Details: Remotely triggered, wet slab avalanche in the Taylor Fork
Forecast link: GNFAC Avalanche Forecast for Mon Apr 15, 2024
Northern Madison, 2024-04-15
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