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 FRIDAY: JANUARY 28 , 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 11.0 92 13.0 13.4 97
Blind Bull Sum 8650 14.4 14.3 101 11.0 11.4 96
Cottonwood Creek 7670 12.3 12.4 99 18.1 14.8 122
East Rim Divide 7930 6.4 6.8 94 8.4 7.2 117
Grand Targhee 9260 22.7 26.0 87 20.0 20.0 100
Granite Creek 6770 8.5 10.0 85 10.8 12.2 89
Grassy Lake 7265 15.7 18.8 84 23.2 23.0 101
Gros Ventre Summit 8750 7.4 7.8 95 8.1 7.7 105
Gunsight Pass 9820 8.8 8.0 110 9.6 8.6 112
Lewis Lake Divide 7850 18.2 18.8 97 24.8 21.6 115
Loomis Park 8240 8.6 9.2 93 11.4 10.2 112
Phillips Bench 8200 13.7 15.8 87 17.2 16.8 102
Salt River Summit 7640 8.1 7.4 109 12.1 9.3 130
Snake River Station 6920 8.6 10.7 80 13.9 14.7 95
Somsen Ranch 6800 8.7 7.9 110 13.4 10.6 126
Spring Creek Divide 9000 14.8 14.2 104 16.9 14.4 117
Thumb Divide 7980 10.5 9.7 108 13.1 11.4 115
Togwotee Pass 9580 14.0 14.2 99 15.3 14.6 105
Triple Peak 8500 15.0 13.2 114 18.5 15.2 122
Two Ocean Plateau 9240 19.5 18.0 108 17.1 16.2 106
Willow Creek 8080 16.5 16.4 101 22.5 19.6 115
Younts Peak 8350 9.8 8.8 111 7.0 9.2 76
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Basin Index (%) 97 108
MADISON HEADWATERS IN WYOMING
Black Bear 8170 22.6 22.3 101 -M 22.7 *
Canyon 7870 6.1 -M * 8.9 -M *
Madison Plateau 7750 12.8 13.6 94 15.8 15.2 104
West Yellowstone 6700 6.6 6.8 97 9.8 9.0 109
Whiskey Creek 6800 8.3 9.0 92 -M 12.0 *
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Basin Index (%) 97 106
YELLOWSTONE HEADWATERS IN WYOMING
Beartooth Lake 9360 10.6 13.9 76 10.1 12.4 81
Canyon 7870 6.1 -M * 8.9 -M *
Evening Star 9200 17.2 16.9 102 16.8 18.0 93
Fisher Creek 9100 19.6 20.5 96 20.7 20.1 103
Monument Peak 8850 11.1 13.1 85 14.0 14.1 99
Northeast Entrance 7350 3.8 6.2 61 7.6 8.2 93
Parker Peak 9400 12.4 13.2 94 12.5 12.6 99
Sylvan Lake 8420 10.4 12.2 85 14.8 14.4 103
Thumb Divide 7980 10.5 9.7 108 13.1 11.4 115
Two Ocean Plateau 9240 19.5 18.0 108 17.1 16.2 106
White Mill 8700 12.6 14.8 85 12.8 14.6 88
Wolverine 7650 7.6 7.6 100 8.0 8.2 98
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Basin Index (%) 93 98
WIND RIVER
Burroughs Creek 8750 5.7 -M * 8.4 -M *
Castle Creek 8400 2.8 4.4 64 4.0 5.8 69
Cold Springs 9630 6.8 4.8 142 9.0 5.8 155
Deer Park 9700 7.9 7.8 101 10.9 10.1 108
Hobbs Park 10100 10.3 7.7 134 11.1 7.0 159
Kirwin 9550 7.8 6.6 118 8.9 7.5 119
Little Warm 9370 7.7 6.0 128 10.0 7.6 132
South Pass 9040 7.8 7.9 99 9.4 9.2 102
St. Lawrence Alt 8620 -M -M * 6.3 -M *
Togwotee Pass 9580 14.0 14.2 99 15.3 14.6 105
Townsend Creek 8700 5.3 5.0 106 8.3 6.5 128
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Basin Index (%) 109 117
BIGHORN BASIN
Bald Mtn. 9380 9.6 10.9 88 9.2 9.6 96
Bear Trap Meadow 8200 3.4 3.8 89 5.5 5.2 106
Bone Springs Div 9350 9.0 9.6 94 8.1 8.8 92
Grave Springs 8550 3.4 4.7 72 5.6 5.6 100
Kirwin 9550 7.8 6.6 118 8.9 7.5 119
Marquette 8760 1.9 3.9 49 5.1 5.6 91
Middle Powder 7760 4.1 5.8 71 5.8 5.9 98
Owl Creek 8975 3.8 3.2 119 4.6 3.8 121
Powder River Pass 9480 5.8 6.6 88 5.1 8.0 64
Shell Creek 9580 8.1 9.0 90 8.5 8.4 101
Timber Creek 7950 2.0 2.8 71 3.9 4.6 85
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Basin Index (%) 88 96
SHOSHONE RIVER
Blackwater 9780 13.5 14.2 95 14.6 13.6 107
Evening Star 9200 17.2 16.9 102 16.8 18.0 93
Marquette 8760 1.9 3.9 49 5.1 5.6 91
Sylvan Lake 8420 10.4 12.2 85 14.8 14.4 103
Sylvan Road 7120 5.3 7.8 68 -M 11.4 *
Younts Peak 8350 9.8 8.8 111 7.0 9.2 76
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Basin Index (%) 91 96
POWDER RIVER
Bear Trap Meadow 8200 3.4 3.8 89 5.5 5.2 106
Cloud Peak Reservoir 9860 8.2 8.2 100 9.2 8.0 115
Grave Springs 8550 3.4 4.7 72 5.6 5.6 100
Hansen Sawmill 8360 4.0 4.1 98 6.0 5.0 120
Middle Powder 7760 4.1 5.8 71 5.8 5.9 98
Powder River Pass 9480 5.8 6.6 88 5.1 8.0 64
Soldier Park 8720 1.1 3.5 31 6.1 5.5 111
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Basin Index (%) 82 100
TONGUE RIVER
Big Goose 7990 3.6 4.6 78 7.5 5.8 129
Bone Springs Div 9350 9.0 9.6 94 8.1 8.8 92
Burgess Junction 7880 5.9 6.3 94 8.0 7.4 108
Dome Lake 8880 5.8 6.5 89 8.2 7.4 111
Little Goose 8870 4.7 5.6 84 8.5 6.8 125
Sucker Creek 8880 7.0 7.2 97 9.6 8.2 117
Tie Creek 6870 2.2 3.2 69 7.7 6.4 120
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Basin Index (%) 89 113
BELLE FOURCHE
Blind Park 6890 2.6 4.5 58 5.1 6.3 81
Cole Canyon 5910 2.0 3.2 62 5.9 5.2 113
North Rapid Creek 6130 2.9 4.3 67 4.0 5.0 80
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Basin Index (%) 62 91
CHEYENNE RIVER BASIN
Blind Park 6890 2.6 4.5 58 5.1 6.3 81
North Rapid Creek 6130 2.9 4.3 67 4.0 5.0 80
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Basin Index (%) 62 81
UPPER N. PLATTE
Arapaho Ridge 10960 14.8 13.4 110 14.2 13.6 104
Blackhall Mtn 9820 20.4 17.2 119 21.8 18.1 120
Cinnabar Park 9574 13.0 12.8 102 15.5 15.0 103
Columbine 9160 14.8 13.4 110 17.5 14.7 119
Divide Peak 8880 10.3 11.6 89 15.1 13.4 113
Joe Wright 10120 14.6 11.4 128 21.0 15.0 140
Laprele Creek 8375 3.5 5.2 67 6.8 6.6 103
Med Bow 10500 22.8 -M * 21.3 -M *
Never Summer 10280 14.9 11.0 135 10.9 10.2 107
North French Creek 10130 17.4 16.3 107 18.7 15.8 118
Old Battle 10000 20.4 18.4 111 21.7 20.4 106
Rawah 9020 7.1 6.8 104 10.1 9.6 105
Sage Creek Basin 7850 6.1 8.7 70 7.9 8.5 93
Sand Lake 10050 17.3 15.6 111 17.9 14.9 120
South Brush Creek 8440 6.3 7.0 90 8.6 8.2 105
Tower 10500 28.3 25.2 112 29.1 24.8 117
Webber Springs 9250 14.7 12.6 117 18.1 15.4 118
Whiskey Park 8950 18.8 15.8 119 21.5 17.7 121
Willow Creek Pass 9540 9.7 7.6 128 10.2 8.2 124
Zirkel 9340 17.9 16.6 108 -M 18.9 *
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Basin Index (%) 110 115
SWEETWATER
Deer Park 9700 7.9 7.8 101 10.9 10.1 108
Larsen Creek 9000 -M 4.8 * 8.3 7.8 106
South Pass 9040 7.8 7.9 99 9.4 9.2 102
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Basin Index (%) 100 106
LOWER N. PLATTE
Casper Mtn. 7900 5.6 7.2 78 10.4 8.2 127
Laprele Creek 8375 3.5 5.2 67 6.8 6.6 103
Reno Hill 8400 6.8 8.0 85 10.6 8.4 126
Windy Peak 7900 3.7 4.2 88 7.0 6.1 115
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Basin Index (%) 80 119
LARAMIE RIVER
Brooklyn Lake 10240 14.4 12.3 117 16.7 12.8 130
Cinnabar Park 9574 13.0 12.8 102 15.5 15.0 103
Crow Creek 8330 3.0 4.9 61 6.5 6.5 100
Deadman Hill 10220 13.2 10.4 127 12.4 10.3 120
Rawah 9020 7.1 6.8 104 10.1 9.6 105
Roach 9700 11.4 9.5 120 13.9 11.4 122
Windy Peak 7900 3.7 4.2 88 7.0 6.1 115
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Basin Index (%) 108 115
S. PLATTE
Crow Creek 8330 3.0 4.9 61 6.5 6.5 100
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Basin Index (%) 61 100
LITTLE SNAKE RIVER
Battle Mountain 7440 5.9 6.8 87 10.8 9.7 111
Divide Peak 8880 10.3 11.6 89 15.1 13.4 113
Elk River 8700 12.8 10.6 121 16.7 11.6 144
Elkhead Divide 8780 12.2 -M * -M -M *
Little Snake River 8915 15.3 15.0 102 23.1 21.2 109
Old Battle 10000 20.4 18.4 111 21.7 20.4 106
Sage Creek Basin 7850 6.1 8.7 70 7.9 8.5 93
Sandstone RS 8150 8.3 7.8 106 11.2 11.2 100
Whiskey Park 8950 18.8 15.8 119 21.5 17.7 121
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Basin Index (%) 103 113
UPPER GREEN RIVER
Big Sandy Opening 9080 6.3 8.0 79 8.4 7.8 108
Blind Bull Sum 8650 14.4 14.3 101 11.0 11.4 96
East Rim Divide 7930 6.4 6.8 94 8.4 7.2 117
Elkhart Park G.S. 9400 5.6 7.4 76 6.6 7.8 85
Gros Ventre Summit 8750 7.4 7.8 95 8.1 7.7 105
Gunsight Pass 9820 8.8 8.0 110 9.6 8.6 112
Indian Creek 9425 14.8 13.4 110 14.6 12.4 118
Kendall R.S. 7740 6.7 7.3 92 10.4 8.5 122
Larsen Creek 9000 -M 4.8 * 8.3 7.8 106
Loomis Park 8240 8.6 9.2 93 11.4 10.2 112
New Fork Lake 8340 5.7 6.7 85 -M 6.7 *
Pocket Creek 9360 -M -M * -M -M *
Snider Basin 8060 7.1 7.8 91 12.2 8.6 142
Spring Creek Divide 9000 14.8 14.2 104 16.9 14.4 117
Triple Peak 8500 15.0 13.2 114 18.5 15.2 122
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Basin Index (%) 98 113
LOWER GREEN RIVER
Blacks Fork Jct 8869 5.7 5.0 114 8.9 7.4 120
Buck Pasture 9632 8.8 -M * 12.3 -M *
EF Blacks Fork GS 9360 6.5 6.0 108 -M 6.5 *
Hams Fork 7840 6.8 7.0 97 9.2 7.0 131
Henrys Fork 10182 -M -M * 9.2 -M *
Hewinta 9500 5.9 5.2 113 10.6 8.3 128
Hickerson Park 9122 3.7 3.9 95 6.1 6.0 102
Hole-in-Rock 9168 3.6 4.0 90 6.4 6.2 103
Indian Creek 9425 14.8 13.4 110 14.6 12.4 118
Kelley R.S. 8180 7.5 8.6 87 12.5 10.7 117
Spirit Lk 10235 7.7 6.5 118 10.7 9.6 111
Steel Creek Park 10158 9.9 8.4 118 12.5 9.3 134
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Basin Index (%) 106 119
UPPER BEAR RIVER
Bear River RS 8777 6.1 5.5 111 9.8 7.2 136
Bug Lake 7987 10.2 9.6 106 14.5 11.0 132
Burts Miller Ranch 8000 4.0 3.6 111 5.1 5.1 100
Chalk Creek #1 9171 12.4 11.8 105 16.5 14.0 118
Giveout 6930 5.4 5.6 96 9.8 7.4 132
Hayden Fork 9130 9.9 8.0 124 16.5 12.0 138
Kelley R.S. 8180 7.5 8.6 87 12.5 10.7 117
Lily Lake 9133 6.9 7.2 96 11.7 9.4 124
Monte Cristo 8932 16.1 14.2 113 20.4 15.6 131
Salt River Summit 7640 8.1 7.4 109 12.1 9.3 130
Spring Creek Divide 9000 14.8 14.2 104 16.9 14.4 117
Trial Lake 9992 14.1 11.8 119 17.8 13.6 131
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Basin Index (%) 107 126
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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.
