Ski West Report SNOTEL Snow/Precipitation Update Report

Ski West Report SNOTEL Snow/Precipitation Update Report

Based on Mountain Data from NRCS SNOTEL Sites

**Provisional data, subject to revision**

Data based on the first reading of the day (typically 00:00) for Saturday, September 20, 2025

Basin Site Name	Elev (ft)	Snow Water Equivalent			Water Year-to-Date Precipitation
Basin Site Name	Elev (ft)	Current (in)	Median (in)	Pct of Median	Current (in)	Median (in)	Pct of Median
ALASKA
Basin Index (%)		*			*
Alyeska Ski Resort
Mt. Alyeska	1500	0.1	0.0	*	80.0	74.6₍₂₇₎	107
Turnagain Pass	1860	0.0	0.0	*	-M	59.0	*
Basin Index (%)		*			107
-- ARIZONA --
Basin Index (%)		*			*
Arizona Snow Bowl
White Horse Lake	7190	0.0	0.0	*	15.4	22.1	70
Mormon Mountain	7490	0.0	0.0	*	20.0	27.7	72
Snowslide Canyon	9720	0.2	0.0₍₂₃₎	*	25.4	34.7₍₂₃₎	73
Basin Index (%)		*			72
Bill Williams Ski Area
White Horse Lake	7190	0.0	0.0	*	15.4	22.1	70
Basin Index (%)		*			70
Sunrise
Baldy	9210	0.0	0.0	*	14.5	27.2	53
Maverick Fork	9210	0.0	0.0	*	13.0	25.8	50
Basin Index (%)		*			52
-- CALIFORNIA --
Basin Index (%)		*			*
Heavenly Valley
Heavenly Valley	8540	0.0	0.0	*	32.9	30.0	110
Hagans Meadow	7740	0.0	0.0	*	28.9	29.2	99
Fallen Leaf	6250	0.0	0.0	*	30.0	29.9	100
Basin Index (%)		*			103
Squaw Valley
Css Lab	6880	0.0	0.0	*	60.0	65.6	91
Palisades Tahoe	8010	0.0	0.0	*	51.9	58.4	89
Tahoe City Cross	6760	0.0	0.0	*	36.4	33.0	110
Basin Index (%)		*			94
Alpine
Palisades Tahoe	8010	0.0	0.0	*	51.9	58.4	89
Ward Creek #3	6750	0.0	0.0	*	63.6	65.4	97
Basin Index (%)		*			93
Northstar
Truckee #2	6500	0.0	0.0	*	32.0	31.7	101
Tahoe City Cross	6760	0.0	0.0	*	36.4	33.0	110
Basin Index (%)		*			106
Boreal Ridge
Css Lab	6880	0.0	0.0	*	60.0	65.6	91
Basin Index (%)		*			91
Homewood
Rubicon #2	7570	0.4	0.0	*	34.8	37.2	94
Ward Creek #3	6750	0.0	0.0	*	63.6	65.4	97
Basin Index (%)		*			96
Sugar Bowl
Css Lab	6880	0.0	0.0	*	60.0	65.6	91
Basin Index (%)		*			91
-- COLORADO --
Basin Index (%)		*			*
Steamboat Springs
Tower	10610	0.0	0.0	*	52.7	56.6	93
Columbine	9170	0.2	0.0	*	34.0	36.8	92
Dry Lake	8240	0.1	0.0	*	32.6	37.2	88
Rabbit Ears	9390	0.0	0.0	*	42.5	44.5	96
Basin Index (%)		*			92
Powderhorn
Park Reservoir	9990	0.0	0.0	*	23.5	39.1	60
Mesa Lakes	10160	0.0	0.0	*	25.8	31.9	81
Basin Index (%)		*			69
Sunlight
Basin Index (%)		*			*
Snowmass
North Lost Trail	9190	0.0	0.0	*	26.6	34.3	78
Basin Index (%)		*			78
Aspen
Independence Pass	10570	0.1	0.0	*	26.1	29.6	88
Mc Clure Pass	8760	0.0	0.0	*	22.7	31.5	72
North Lost Trail	9190	0.0	0.0	*	26.6	34.3	78
Schofield Pass	10640	0.1	0.0	*	36.4	46.2	79
Basin Index (%)		*			79
Ashcroft
Independence Pass	10570	0.1	0.0	*	26.1	29.6	88
Schofield Pass	10640	0.1	0.0	*	36.4	46.2	79
Basin Index (%)		*			82
Crested Butte
Butte	10190	0.0	0.0	*	21.4	25.5	84
Schofield Pass	10640	0.1	0.0	*	36.4	46.2	79
North Lost Trail	9190	0.0	0.0	*	26.6	34.3	78
Basin Index (%)		*			80
Monarch
Porphyry Creek	10790	0.0	0.0	*	32.9	26.1	126
Basin Index (%)		*			126
Telluride
Red Mountain Pass	11050	0.1	0.0	*	35.6	41.1	87
Lizard Head Pass	10190	0.1	0.0	*	25.9	27.4	95
Mineral Creek	10030	0.0	0.0	*	26.3	29.6	89
Basin Index (%)		*			90
Wolf Creek
Wolf Creek Summit	10930	0.0	0.0	*	33.8	47.4	71
Middle Creek	11260	0.0	0.0	*	27.8	37.9	73
Upper San Juan	10140	0.0	0.0	*	35.0	50.6	69
Basin Index (%)		*			71
Purgatory
Cascade	8900	-M	0.0	*	-M	31.8	*
Spud Mountain	10660	0.0	0.0	*	33.8	44.5	76
Molas Lake	10610	0.1	0.0	*	27.0	32.2	84
Basin Index (%)		*			79
Ski Cooper
Fremont Pass	11310	0.0	0.0	*	25.7	28.5	90
Hoosier Pass	11600	0.4	0.0	*	24.0	29.2	82
Basin Index (%)		*			86
Copper Mtn. - Breckenridge
Fremont Pass	11310	0.0	0.0	*	25.7	28.5	90
Hoosier Pass	11600	0.4	0.0	*	24.0	29.2	82
Basin Index (%)		*			86
Vail - Beaver Creek
Vail Mountain	10290	0.0	0.0	*	25.5	33.6	76
Basin Index (%)		*			76
Keystone - Arapahoe - Loveland
Grizzly Peak	11110	0.0	0.0	*	29.0	30.2	96
Basin Index (%)		*			96
Berthoud Pass
Berthoud Summit	11300	0.2	0.0	*	37.6	39.4	95
Arrow	9660	-M	N/A	*	-M	N/A	*
Basin Index (%)		*			95
Winter Park - Ski Idlewild
Arrow	9660	-M	N/A	*	-M	N/A	*
Berthoud Summit	11300	0.2	0.0	*	37.6	39.4	95
Fool Creek	11130	0.0	N/A	*	30.8	N/A	*
Basin Index (%)		*			95
Lake Eldora
Lake Eldora	9700	0.1	0.0	*	27.0	29.9	90
Niwot	9940	0.0	0.0	*	25.9	30.2	86
Arrow	9660	-M	N/A	*	-M	N/A	*
Basin Index (%)		*			88
Hidden Valley
Lake Irene	10680	0.1	0.0	*	32.6	34.4	95
Willow Park	10710	0.1	0.0	*	32.6	36.2	90
Copeland Lake	8570	0.1	0.0	*	-M	27.0	*
Basin Index (%)		*			92
-- IDAHO --
Basin Index (%)		*			*
Bald Mountain
Hemlock Butte	5800	0.1	0.0	*	44.9	N/A	*
Shanghi Summit	4590	0.0	0.0	*	45.7	56.9	80
Basin Index (%)		*			80
Bogus Basin
Bogus Basin	6370	0.1	0.0₍₂₁₎	*	36.4	29.2₍₂₁₎	125
Mores Creek Summit	6090	0.0	0.0	*	46.6	44.0	106
Basin Index (%)		*			113
Brundage Mountain
Bear Basin	5350	0.1	0.0	*	33.7	34.2	99
Brundage Reservoir	6280	0.1	0.0	*	48.5	50.4	96
Secesh Summit	6520	0.0	0.0	*	48.4	39.7	122
Basin Index (%)		*			105
Kelly Canyon
Pine Creek Pass	6710	0.0	0.0	*	30.9	33.0	94
Basin Index (%)		*			94
Pebble Creek
Sedgwick Peak	7800	0.0	0.0	*	28.4	31.6	90
Wildhorse Divide	6480	0.0	0.0	*	30.7	27.8	110
Basin Index (%)		*			99
Pomerelle / Magic Mountain
Bostetter R.S.	7530	0.0	0.0	*	26.1	27.6	95
Howell Canyon	8010	0.0	0.0	*	35.4	39.6₍₂₉₎	89
Magic Mountain	6940	0.1	0.0	*	27.2	31.8	86
Basin Index (%)		*			90
Schweitzer Mountain
Schweitzer Basin	6090	0.0	0.0	*	50.0	53.4	94
Basin Index (%)		*			94
Silver Mountain / Lookout
Lookout	5180	0.0	0.0	*	35.7	48.7	73
Sunset	5580	0.0	0.0	*	33.7	50.5	67
Basin Index (%)		*			70
Soldier Mountain
Basin Index (%)		*			*
Sun Valley
Lost-Wood Divide	7870	0.1	0.0	*	24.6	27.6	89
Galena	7470	0.0	0.0	*	23.8	24.8	96
Galena Summit	8780	0.0	0.0	*	27.7	28.2	98
Hyndman	7590	0.0	0.0	*	18.2	23.8	76
Basin Index (%)		*			90
Tamarack
Long Valley	4890	0.0	0.0₍₁₉₎	*	24.1	23.5₍₁₉₎	103
Puhi Flat	6240	0.1	0.0	*	42.3	43.6	97
Basin Index (%)		*			99
-- MONTANA --
Basin Index (%)		*			*
Big Sky
Carrot Basin	9200	0.0	0.0	*	37.8	45.2	84
Shower Falls	8060	0.1	0.0	*	44.1	45.1	98
Basin Index (%)		*			91
Bridger Bowl
Shower Falls	8060	0.1	0.0	*	44.1	45.1	98
Basin Index (%)		*			98
Big Mountain
Noisy Basin	6070	0.0	0.0	*	67.5	70.2	96
Basin Index (%)		*			96
Lost Trail Powder Mountain
Moose Creek	6170	0.0	0.0	*	27.3	30.3	90
Saddle Mtn.	7890	0.0	0.0	*	27.8	35.0	79
Basin Index (%)		*			84
-- NEVADA --
Basin Index (%)		*			*
MT Rose
Marlette Lake	7860	0.1	0.0	*	30.3	29.8	102
Mt Rose Ski Area	8810	0.0	0.0	*	49.7	48.4	103
Basin Index (%)		*			102
Diamond Peak
Marlette Lake	7860	0.1	0.0	*	30.3	29.8	102
Basin Index (%)		*			102
-- NEW MEXICO --
Basin Index (%)		*			*
Taos
Red River Pass #2	9840	0.0	0.0	*	18.1	20.3	89
Taos Powderhorn	11030	0.0	0.0₍₁₁₎	*	28.9	34.0₍₁₀₎	85
Basin Index (%)		*			87
Angle Fire
Palo	9330	0.0	0.0₍₁₁₎	*	21.4	20.0₍₁₁₎	107
Red River Pass #2	9840	0.0	0.0	*	18.1	20.3	89
Tolby	10210	0.0	0.0₍₂₂₎	*	28.8	24.4₍₂₂₎	118
Basin Index (%)		*			106
Santa Fe
Santa Fe	11480	0.1	0.0₍₂₄₎	*	29.9	32.2₍₂₄₎	93
Basin Index (%)		*			93
Sugarite
Whiskey Ck	10260	0.0	0.0	*	26.4	32.2	82
North Costilla	10570	0.0	0.0	*	26.8	26.5	101
Apishapa	10000	0.0	0.0	*	25.1	25.7	98
Basin Index (%)		*			93
-- OREGON --
Basin Index (%)		*			*
MT Hood
Mt Hood Test Site	5380	0.0	0.0	*	84.3	105.0	80
Mud Ridge	4070	0.1	0.0₍₂₉₎	*	60.9	68.4	89
Red Hill	4410	0.0	0.0	*	93.3	111.0	84
Basin Index (%)		*			84
Bachelor Butte
Three Creeks Meadow	5680	0.0	0.0	*	42.5	39.8	107
Summit Lake	5610	0.0	0.0	*	79.8	72.0	111
Cascade Summit	5100	0.1	0.0	*	67.9	62.8	108
Basin Index (%)		*			109
Anthony Lakes
Wolf Creek	5730	0.0	0.0	*	28.3	27.9	101
Bourne	5850	0.1	0.0	*	33.7	32.3	104
Basin Index (%)		*			103
-- UTAH --
Basin Index (%)		*			*
Park City - Snowbird
Parleys Summit	7590	0.0	0.0	*	27.6	31.5	88
Brighton	8790	0.1	0.0	*	32.6	37.2	88
Timpanogos Divide	8180	0.0	0.0	*	26.9	33.0	82
Basin Index (%)		*			86
Sundance
Timpanogos Divide	8180	0.0	0.0	*	26.9	33.0	82
Basin Index (%)		*			82
Bryanhead
Kolob	9250	0.1	0.0	*	20.8	30.4	68
Merchant Valley	8710	0.0	0.0	*	20.4	27.2	75
Midway Valley	9830	0.0	0.0	*	20.3	31.6	64
Basin Index (%)		*			69
Beaver Mountain
Tony Grove Lake	8450	0.0	0.0	*	41.7	45.6	91
Franklin Basin	8140	0.3	0.0	*	38.3	41.8	92
Basin Index (%)		*			92
-- WASHINGTON --
Basin Index (%)		*			*
MT Spokane
Ragged Mountain	4210	0.0	0.0₍₁₄₎	*	40.5	46.2₍₁₄₎	88
Quartz Peak	4710	0.0	0.0	*	43.3	48.1	90
Basin Index (%)		*			89
Ski Bluewood
Touchet	5520	0.0	0.0	*	46.0	56.1	82
Basin Index (%)		*			82
Stevens Pass
Stevens Pass	3940	0.0	0.0	*	68.1	89.6	76
Trough	5480	0.2	0.0	*	24.9	26.4	94
Basin Index (%)		*			80
White Pass
White Pass E.S.	4440	0.0	0.0	*	42.7	44.0	97
Pigtail Peak	5800	0.0	0.0	*	62.8	82.3	76
Basin Index (%)		*			84
Crystal Mountain
Rainy Pass	4880	0.0	0.0	*	39.2	55.8	70
Harts Pass	6490	0.0	0.0	*	36.4	51.0	71
Basin Index (%)		*			71
-- WYOMING --
Basin Index (%)		*			*
Grand Targhee
Grand Targhee	9260	0.0	0.0₍₁₄₎	*	42.2	50.4₍₁₄₎	84
Phillips Bench	8160	0.0	0.0	*	35.8	40.1	89
Pine Creek Pass	6710	0.0	0.0	*	30.9	33.0	94
Basin Index (%)		*			88
Jackson Hole
Grassy Lake	7330	0.0	0.0	*	43.1	50.4	86
Phillips Bench	8160	0.0	0.0	*	35.8	40.1	89
Togwotee Pass	9590	0.0	0.0	*	37.0	37.2	99
Basin Index (%)		*			91
Hogadon
Casper Mtn.	7940	0.1	0.0	*	22.8	24.9	92
Reno Hill	8410	0.0	0.0	*	25.3	27.6	92
Basin Index (%)		*			92

-M = Missing data.
* = Analysis may not provide a valid measure of conditions.
N/A = Not available.

Footnotes for median and average:
(##) = If less than 30 years are available, this value specifies the number of years used for the median and average calculations.
Sites with less than 10 years available do not have medians or averages.

If the Basin Index (%) percent value is flagged as potentially invalid,
care should be taken to evaluate if the value is representative
of conditions in the basin.

The SNOW WATER EQUIVALENT represents the depth of water in the snowpack, if the
snowpack were melted, expressed in inches.

The WATER YEAR-TO-DATE-PRECIPITATION represents total precipitation since October 1st, expressed in inches.

Contact your state water supply staff for assistance.

Medians and averages are calculated for the period 1991-2020.

Provisional data, subject to revision.

* Site -- Either: (a) the current value is missing; (b) the median or average for the day is not available or is zero; or (c) for snow water equivalent, the median or average for the day is less than 10% of the maximum median or average value for the year.

* Basin - More than half of the stations for a basin with normals report missing or invalid data.

The basin index is calculated as the sum of the valid current values divided by the sum of the corresponding medians or averages and the resulting fraction multiplied by 100.