Wyoming Snow Precipitation Update
United States Natural Resources Water and Climate Center
Department of Conservation Portland, Oregon
Agriculture Service
S N O W - P R E C I P I T A T I O N U P D A T E
Based on Mountain Data from NRCS SNOTEL Sites
As of MONDAY: JANUARY 31 , 2022
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BASIN ELEV. SNOW WATER EQUIVALENT TOTAL PRECIPITATION
Data Site Name (Ft) % %
Current Median Median Current Median Med
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WYOMING
SNAKE RIVER
Base Camp 7060 10.1 11.8 86 13.0 13.6 96
Blind Bull Sum 8650 14.5 14.8 98 11.2 11.7 96
Cottonwood Creek 7670 12.3 13.4 92 18.2 15.4 118
East Rim Divide 7930 6.4 6.8 94 8.4 7.3 115
Grand Targhee 9260 22.8 27.0 84 20.2 20.4 99
Granite Creek 6770 8.6 10.4 83 10.8 12.6 86
Grassy Lake 7265 15.8 20.2 78 23.3 23.0 101
Gros Ventre Summit 8750 7.6 8.0 95 8.2 7.8 105
Gunsight Pass 9820 9.0 8.4 107 9.7 8.8 110
Lewis Lake Divide 7850 18.2 19.4 94 24.8 21.6 115
Loomis Park 8240 8.6 9.8 88 11.5 10.6 108
Phillips Bench 8200 13.9 16.0 87 17.3 17.1 101
Salt River Summit 7640 8.2 7.6 108 12.3 9.6 128
Snake River Station 6920 8.6 11.4 75 13.9 15.2 91
Somsen Ranch 6800 8.8 8.2 107 13.7 11.0 125
Spring Creek Divide 9000 14.9 15.1 99 17.1 14.8 116
Thumb Divide 7980 10.5 9.8 107 13.3 11.5 116
Togwotee Pass 9580 14.0 14.6 96 15.3 15.8 97
Triple Peak 8500 14.8 14.1 105 18.6 15.7 118
Two Ocean Plateau 9240 19.6 18.4 107 17.3 16.4 105
Willow Creek 8080 16.6 16.9 98 22.6 20.7 109
Younts Peak 8350 10.0 9.0 111 7.3 9.2 79
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Basin Index (%) 94 106
MADISON HEADWATERS IN WYOMING
Black Bear 8170 22.7 22.6 100 -M 23.4 *
Canyon 7870 6.3 -M * 9.2 -M *
Madison Plateau 7750 -M 13.8 * -M 15.4 *
West Yellowstone 6700 6.7 6.9 97 10.0 9.2 109
Whiskey Creek 6800 8.4 9.2 91 -M 12.3 *
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Basin Index (%) 98 109*
YELLOWSTONE HEADWATERS IN WYOMING
Beartooth Lake 9360 10.7 14.6 73 10.3 12.8 80
Canyon 7870 6.3 -M * 9.2 -M *
Evening Star 9200 17.3 17.0 102 17.0 18.5 92
Fisher Creek 9100 19.6 21.2 92 20.8 20.4 102
Monument Peak 8850 11.3 13.2 86 14.1 14.3 99
Northeast Entrance 7350 3.8 6.4 59 7.7 8.4 92
Parker Peak 9400 12.6 13.8 91 12.6 13.2 95
Sylvan Lake 8420 10.4 12.4 84 15.0 15.0 100
Thumb Divide 7980 10.5 9.8 107 13.3 11.5 116
Two Ocean Plateau 9240 19.6 18.4 107 17.3 16.4 105
White Mill 8700 12.6 14.9 85 12.8 15.2 84
Wolverine 7650 7.7 8.0 96 8.0 8.4 95
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Basin Index (%) 91 97
WIND RIVER
Burroughs Creek 8750 5.9 -M * 8.8 -M *
Castle Creek 8400 2.9 4.6 63 4.1 6.0 68
Cold Springs 9630 6.9 4.8 144 9.0 6.0 150
Deer Park 9700 7.9 8.0 99 11.0 10.1 109
Hobbs Park 10100 10.6 7.8 136 11.2 7.2 156
Kirwin 9550 7.9 6.7 118 9.0 7.8 115
Little Warm 9370 7.8 6.2 126 10.1 7.8 129
South Pass 9040 7.8 8.0 98 9.6 9.2 104
St. Lawrence Alt 8620 -M -M * 6.3 -M *
Togwotee Pass 9580 14.0 14.6 96 15.3 15.8 97
Townsend Creek 8700 5.4 5.2 104 8.3 6.6 126
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Basin Index (%) 108 115
BIGHORN BASIN
Bald Mtn. 9380 9.8 11.0 89 9.4 9.8 96
Bear Trap Meadow 8200 3.5 3.8 92 5.6 5.2 108
Bone Springs Div 9350 9.2 9.8 94 8.5 9.2 92
Grave Springs 8550 3.6 4.7 77 5.6 5.6 100
Kirwin 9550 7.9 6.7 118 9.0 7.8 115
Marquette 8760 1.9 4.2 45 5.2 5.7 91
Middle Powder 7760 4.2 6.0 70 6.0 6.0 100
Owl Creek 8975 3.7 3.2 116 4.7 3.8 124
Powder River Pass 9480 5.8 6.8 85 5.4 8.2 66
Shell Creek 9580 8.3 9.2 90 8.6 8.5 101
Timber Creek 7950 1.9 2.8 68 4.0 4.8 83
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Basin Index (%) 88 97
SHOSHONE RIVER
Blackwater 9780 13.7 14.6 94 15.0 14.0 107
Evening Star 9200 17.3 17.0 102 17.0 18.5 92
Marquette 8760 1.9 4.2 45 5.2 5.7 91
Sylvan Lake 8420 10.4 12.4 84 15.0 15.0 100
Sylvan Road 7120 5.4 8.0 68 -M 11.6 *
Younts Peak 8350 10.0 9.0 111 7.3 9.2 79
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Basin Index (%) 90 95
POWDER RIVER
Bear Trap Meadow 8200 3.5 3.8 92 5.6 5.2 108
Cloud Peak Reservoir 9860 8.2 8.7 94 9.3 8.1 115
Grave Springs 8550 3.6 4.7 77 5.6 5.6 100
Hansen Sawmill 8360 4.0 4.2 95 6.2 5.2 119
Middle Powder 7760 4.2 6.0 70 6.0 6.0 100
Powder River Pass 9480 5.8 6.8 85 5.4 8.2 66
Soldier Park 8720 1.1 3.6 31 6.1 5.6 109
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Basin Index (%) 80 101
TONGUE RIVER
Big Goose 7990 3.8 4.8 79 7.4 6.0 123
Bone Springs Div 9350 9.2 9.8 94 8.5 9.2 92
Burgess Junction 7880 6.0 6.5 92 8.2 7.4 111
Dome Lake 8880 5.9 6.6 89 8.4 7.6 111
Little Goose 8870 4.8 5.8 83 8.5 7.0 121
Sucker Creek 8880 7.1 7.5 95 9.8 8.3 118
Tie Creek 6870 2.4 3.4 71 7.8 6.4 122
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Basin Index (%) 88 113
BELLE FOURCHE
Blind Park 6890 2.5 4.6 54 5.1 6.4 80
Cole Canyon 5910 2.1 3.2 66 5.9 5.4 109
North Rapid Creek 6130 3.1 4.6 67 4.0 5.0 80
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Basin Index (%) 62 89
CHEYENNE RIVER BASIN
Blind Park 6890 2.5 4.6 54 5.1 6.4 80
North Rapid Creek 6130 3.1 4.6 67 4.0 5.0 80
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Basin Index (%) 61 80
UPPER N. PLATTE
Arapaho Ridge 10960 14.8 14.0 106 14.3 13.8 104
Blackhall Mtn 9820 20.6 18.0 114 22.0 18.8 117
Cinnabar Park 9574 13.2 13.0 102 15.6 15.2 103
Columbine 9160 14.9 14.0 106 17.6 15.0 117
Divide Peak 8880 10.5 12.2 86 15.2 13.8 110
Joe Wright 10120 14.8 11.6 128 21.0 15.2 138
Laprele Creek 8375 3.6 5.3 68 6.8 6.8 100
Med Bow 10500 22.9 -M * 21.5 -M *
Never Summer 10280 14.8 11.4 130 11.0 10.5 105
North French Creek 10130 17.4 16.6 105 18.8 16.5 114
Old Battle 10000 20.5 18.9 108 22.0 21.9 100
Rawah 9020 7.2 6.6 109 10.0 9.7 103
Sage Creek Basin 7850 6.2 9.2 67 7.9 8.7 91
Sand Lake 10050 17.6 16.4 107 18.1 15.0 121
South Brush Creek 8440 6.3 7.2 88 8.7 8.6 101
Tower 10500 28.2 25.8 109 29.2 25.3 115
Webber Springs 9250 14.8 13.1 113 18.4 16.1 114
Whiskey Park 8950 18.9 16.2 117 21.6 17.8 121
Willow Creek Pass 9540 9.8 7.8 126 10.3 8.4 123
Zirkel 9340 18.1 16.8 108 24.5 19.2 128
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Basin Index (%) 107 113
SWEETWATER
Deer Park 9700 7.9 8.0 99 11.0 10.1 109
Larsen Creek 9000 -M 4.9 * 8.4 7.8 108
South Pass 9040 7.8 8.0 98 9.6 9.2 104
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Basin Index (%) 98 107
LOWER N. PLATTE
Casper Mtn. 7900 5.6 7.5 75 10.5 8.4 125
Laprele Creek 8375 3.6 5.3 68 6.8 6.8 100
Reno Hill 8400 6.9 8.1 85 10.6 8.4 126
Windy Peak 7900 3.8 4.4 86 7.1 6.3 113
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Basin Index (%) 79 117
LARAMIE RIVER
Brooklyn Lake 10240 14.5 12.5 116 16.7 13.2 127
Cinnabar Park 9574 13.2 13.0 102 15.6 15.2 103
Crow Creek 8330 3.1 5.1 61 6.3 6.5 97
Deadman Hill 10220 13.5 10.7 126 12.6 10.6 119
Rawah 9020 7.2 6.6 109 10.0 9.7 103
Roach 9700 11.5 9.6 120 14.1 11.6 122
Windy Peak 7900 3.8 4.4 86 7.1 6.3 113
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Basin Index (%) 108 113
S. PLATTE
Crow Creek 8330 3.1 5.1 61 6.3 6.5 97
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Basin Index (%) 61 97
LITTLE SNAKE RIVER
Battle Mountain 7440 6.0 7.2 83 11.0 10.0 110
Divide Peak 8880 10.5 12.2 86 15.2 13.8 110
Elk River 8700 12.9 11.1 116 16.8 11.8 142
Elkhead Divide 8780 12.4 -M * 16.0 -M *
Little Snake River 8915 15.4 16.2 95 23.3 22.2 105
Old Battle 10000 20.5 18.9 108 22.0 21.9 100
Sage Creek Basin 7850 6.2 9.2 67 7.9 8.7 91
Sandstone RS 8150 8.2 8.0 102 11.3 11.3 100
Whiskey Park 8950 18.9 16.2 117 21.6 17.8 121
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Basin Index (%) 100 110
UPPER GREEN RIVER
Big Sandy Opening 9080 6.5 8.0 81 8.5 8.0 106
Blind Bull Sum 8650 14.5 14.8 98 11.2 11.7 96
East Rim Divide 7930 6.4 6.8 94 8.4 7.3 115
Elkhart Park G.S. 9400 5.7 7.5 76 6.7 7.8 86
Gros Ventre Summit 8750 7.6 8.0 95 8.2 7.8 105
Gunsight Pass 9820 9.0 8.4 107 9.7 8.8 110
Indian Creek 9425 14.9 13.6 110 14.6 12.6 116
Kendall R.S. 7740 6.8 7.5 91 10.5 8.8 119
Larsen Creek 9000 -M 4.9 * 8.4 7.8 108
Loomis Park 8240 8.6 9.8 88 11.5 10.6 108
New Fork Lake 8340 5.7 6.8 84 6.5 6.7 97
Pocket Creek 9360 -M -M * -M -M *
Snider Basin 8060 7.0 8.1 86 12.3 8.8 140
Spring Creek Divide 9000 14.9 15.1 99 17.1 14.8 116
Triple Peak 8500 14.8 14.1 105 18.6 15.7 118
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Basin Index (%) 95 111
LOWER GREEN RIVER
Blacks Fork Jct 8869 5.9 5.0 118 9.0 7.6 118
Buck Pasture 9632 8.9 -M * 12.5 -M *
EF Blacks Fork GS 9360 6.5 6.3 103 7.1 6.8 104
Hams Fork 7840 6.9 7.0 99 9.2 7.0 131
Henrys Fork 10182 -M -M * 8.7 -M *
Hewinta 9500 5.9 5.4 109 10.8 8.6 126
Hickerson Park 9122 3.8 4.2 90 6.1 6.4 95
Hole-in-Rock 9168 3.7 4.1 90 6.6 6.3 105
Indian Creek 9425 14.9 13.6 110 14.6 12.6 116
Kelley R.S. 8180 7.8 8.8 89 12.9 10.8 119
Spirit Lk 10235 7.9 6.5 122 10.8 9.8 110
Steel Creek Park 10158 10.0 8.6 116 12.6 9.6 131
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Basin Index (%) 105 117
UPPER BEAR RIVER
Bear River RS 8777 6.2 5.4 115 10.0 7.4 135
Bug Lake 7987 10.2 9.9 103 14.7 11.6 127
Burts Miller Ranch 8000 4.1 3.8 108 5.2 5.1 102
Chalk Creek #1 9171 12.5 12.1 103 16.5 14.8 111
Giveout 6930 5.4 5.9 92 9.8 7.6 129
Hayden Fork 9130 9.9 8.4 118 16.2 12.4 131
Kelley R.S. 8180 7.8 8.8 89 12.9 10.8 119
Lily Lake 9133 7.0 7.4 95 11.7 9.7 121
Monte Cristo 8932 16.1 14.4 112 20.3 15.8 128
Salt River Summit 7640 8.2 7.6 108 12.3 9.6 128
Spring Creek Divide 9000 14.9 15.1 99 17.1 14.8 116
Trial Lake 9992 14.1 12.3 115 17.8 14.0 127
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Basin Index (%) 105 123
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-M = Missing data
* = Data may not provide a valid measure of conditions.
Units = inches for the Current and Median (or Average) Snow Water Equivalent and
Total Precipitation values
If the Basin Index (%) 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 Percent of Median (or Average) represents the snow water
equivalent found at selected SNOTEL sites in or near the basin compared to
the Median (or Average) value for those sites on this day.
The TOTAL PRECIPITATION Percent of Median (or Average) represents the total precipitation
(beginning October 1st) found at selected SNOTEL sites in or near the basin
compared to the Median (or Average) value for those sites on this day.
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 medians (or averages) 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.
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-M = Missing data
* = Data may not provide a valid measure of conditions.
Units = inches for the Current and Normal Snow Water Equivalent and
Total Precipitation values
If the Basin Index (%) 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 Percent of Median represents the snow water
equivalent found at selected SNOTEL sites in or near the basin compared to
the Median value for those sites on this day.
The TOTAL PRECIPITATION Percent of Average represents the total precipitation
(beginning October 1st) found at selected SNOTEL sites in or near the basin
compared to the Average value for those sites on this day.
Contact your state water supply staff for assistance.
Medians and averages are calculated for the period 1981-2010.
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 for the day is less than 10% of the maximum
median value for the year.
* Basin - More than half of the sites within the basin are flagged with *,
preventing the calculation of a meaningful basin index.
The basin index is calculated as the sum of the valid current values
divided by the sum of the corresponding medians (for snow water equivalent)
or averages (for precipitation) and the resulting fraction multiplied by 100.
