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 21 , 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 10.2 10.4 98 13.0 12.8 102
Blind Bull Sum 8650 14.7 12.8 115 11.2 11.0 102
Cottonwood Creek 7670 12.2 11.6 105 17.4 13.8 126
East Rim Divide 7930 -M 6.4 * -M 6.8 *
Grand Targhee 9260 22.7 24.1 94 20.2 19.2 105
Granite Creek 6770 8.7 9.2 95 12.2 11.8 103
Grassy Lake 7265 15.9 17.1 93 23.0 21.0 110
Gros Ventre Summit 8750 7.7 7.4 104 8.2 7.2 114
Gunsight Pass 9820 9.0 7.4 122 9.8 8.2 120
Lewis Lake Divide 7850 18.3 16.8 109 24.7 20.6 120
Loomis Park 8240 8.6 8.4 102 11.5 9.8 117
Phillips Bench 8200 13.7 14.1 97 17.0 15.6 109
Salt River Summit 7640 8.2 6.8 121 11.9 8.8 135
Snake River Station 6920 8.7 9.8 89 13.8 13.8 100
Somsen Ranch 6800 8.7 7.2 121 13.4 10.0 134
Spring Creek Divide 9000 14.8 13.2 112 16.9 13.4 126
Thumb Divide 7980 10.6 8.7 122 13.3 10.0 133
Togwotee Pass 9580 13.8 13.0 106 15.0 14.0 107
Triple Peak 8500 15.2 12.1 126 18.8 14.4 131
Two Ocean Plateau 9240 19.6 17.4 113 17.3 15.6 111
Willow Creek 8080 16.8 15.3 110 22.1 18.3 121
Younts Peak 8350 10.1 8.6 117 7.4 8.6 86
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Basin Index (%) 107 114
MADISON HEADWATERS IN WYOMING
Black Bear 8170 22.4 21.4 105 -M 21.9 *
Canyon 7870 6.4 -M * 9.1 -M *
Madison Plateau 7750 12.9 12.6 102 15.6 14.8 105
West Yellowstone 6700 6.6 6.2 106 9.7 8.3 117
Whiskey Creek 6800 8.4 8.2 102 -M 11.4 *
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Basin Index (%) 104 110
YELLOWSTONE HEADWATERS IN WYOMING
Beartooth Lake 9360 10.4 13.2 79 10.1 12.0 84
Canyon 7870 6.4 -M * 9.1 -M *
Evening Star 9200 17.1 16.0 107 16.8 17.2 98
Fisher Creek 9100 19.4 19.6 99 20.6 18.8 110
Monument Peak 8850 10.8 12.4 87 13.5 13.5 100
Northeast Entrance 7350 3.7 5.7 65 7.4 7.7 96
Parker Peak 9400 12.3 12.4 99 12.4 12.2 102
Sylvan Lake 8420 10.3 11.3 91 14.9 13.8 108
Thumb Divide 7980 10.6 8.7 122 13.3 10.0 133
Two Ocean Plateau 9240 19.6 17.4 113 17.3 15.6 111
White Mill 8700 12.4 14.2 87 12.7 13.8 92
Wolverine 7650 7.6 7.0 109 8.0 7.8 103
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Basin Index (%) 97 103
WIND RIVER
Burroughs Creek 8750 5.8 -M * 8.7 -M *
Castle Creek 8400 3.0 4.3 70 4.2 5.6 75
Cold Springs 9630 6.7 4.4 152 8.8 5.7 154
Deer Park 9700 7.5 7.5 100 10.6 9.1 116
Hobbs Park 10100 10.0 7.2 139 10.7 6.8 157
Kirwin 9550 7.7 6.6 117 8.9 7.2 124
Little Warm 9370 7.8 5.7 137 9.9 7.5 132
South Pass 9040 7.3 7.5 97 9.0 8.4 107
St. Lawrence Alt 8620 1.1 -M * 6.1 -M *
Togwotee Pass 9580 13.8 13.0 106 15.0 14.0 107
Townsend Creek 8700 4.9 4.6 107 7.7 6.4 120
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Basin Index (%) 113 120
BIGHORN BASIN
Bald Mtn. 9380 9.0 10.4 87 8.8 9.3 95
Bear Trap Meadow 8200 3.5 3.6 97 5.6 4.8 117
Bone Springs Div 9350 8.6 9.2 93 7.9 8.6 92
Grave Springs 8550 3.2 4.2 76 5.4 5.2 104
Kirwin 9550 7.7 6.6 117 8.9 7.2 124
Marquette 8760 1.5 3.8 39 4.8 5.4 89
Middle Powder 7760 3.7 5.3 70 5.7 5.8 98
Owl Creek 8975 3.6 3.1 116 4.5 3.7 122
Powder River Pass 9480 5.7 6.2 92 5.2 7.6 68
Shell Creek 9580 8.0 8.6 93 8.4 8.2 102
Timber Creek 7950 1.4 2.6 54 3.6 4.4 82
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Basin Index (%) 88 98
SHOSHONE RIVER
Blackwater 9780 13.7 13.8 99 14.8 13.2 112
Evening Star 9200 17.1 16.0 107 16.8 17.2 98
Marquette 8760 1.5 3.8 39 4.8 5.4 89
Sylvan Lake 8420 10.3 11.3 91 14.9 13.8 108
Sylvan Road 7120 5.4 7.2 75 -M 10.8 *
Younts Peak 8350 10.1 8.6 117 7.4 8.6 86
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Basin Index (%) 96 101
POWDER RIVER
Bear Trap Meadow 8200 3.5 3.6 97 5.6 4.8 117
Cloud Peak Reservoir 9860 7.6 7.8 97 8.8 7.6 116
Grave Springs 8550 3.2 4.2 76 5.4 5.2 104
Hansen Sawmill 8360 3.9 3.9 100 6.1 4.8 127
Middle Powder 7760 3.7 5.3 70 5.7 5.8 98
Powder River Pass 9480 5.7 6.2 92 5.2 7.6 68
Soldier Park 8720 .9 3.4 26 5.8 5.2 112
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Basin Index (%) 83 104
TONGUE RIVER
Big Goose 7990 3.2 4.2 76 6.9 5.8 119
Bone Springs Div 9350 8.6 9.2 93 7.9 8.6 92
Burgess Junction 7880 4.9 5.9 83 7.2 6.9 104
Dome Lake 8880 5.5 6.2 89 7.9 7.0 113
Little Goose 8870 4.2 5.1 82 7.9 6.5 122
Sucker Creek 8880 6.1 6.7 91 8.6 7.6 113
Tie Creek 6870 1.4 3.2 44 6.7 6.1 110
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Basin Index (%) 84 109
BELLE FOURCHE
Blind Park 6890 2.0 4.0 50 4.5 6.0 75
Cole Canyon 5910 1.2 2.8 43 5.4 5.0 108
North Rapid Creek 6130 2.3 3.8 61 3.6 4.6 78
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Basin Index (%) 52 87
CHEYENNE RIVER BASIN
Blind Park 6890 2.0 4.0 50 4.5 6.0 75
North Rapid Creek 6130 2.3 3.8 61 3.6 4.6 78
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Basin Index (%) 55 76
UPPER N. PLATTE
Arapaho Ridge 10960 14.4 12.1 119 14.0 12.5 112
Blackhall Mtn 9820 20.1 15.8 127 -M 17.0 *
Cinnabar Park 9574 12.6 11.6 109 15.0 14.0 107
Columbine 9160 14.7 12.8 115 17.6 13.8 128
Divide Peak 8880 10.0 10.6 94 14.9 12.4 120
Joe Wright 10120 14.2 10.4 137 20.5 14.4 142
Laprele Creek 8375 3.0 4.8 62 6.2 6.5 95
Med Bow 10500 22.4 -M * 21.1 -M *
Never Summer 10280 14.4 10.6 136 10.7 9.8 109
North French Creek 10130 17.0 15.4 110 18.3 15.3 120
Old Battle 10000 20.2 16.5 122 21.6 19.6 110
Rawah 9020 6.9 6.2 111 9.7 9.3 104
Sage Creek Basin 7850 5.7 7.8 73 7.9 7.7 103
Sand Lake 10050 16.9 14.8 114 17.6 13.0 135
South Brush Creek 8440 6.1 6.3 97 8.5 8.0 106
Tower 10500 28.4 22.6 126 28.9 22.9 126
Webber Springs 9250 14.4 12.0 120 18.0 15.0 120
Whiskey Park 8950 19.0 14.7 129 21.4 17.0 126
Willow Creek Pass 9540 9.3 6.8 137 10.0 7.2 139
Zirkel 9340 17.7 15.4 115 -M 17.0 *
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Basin Index (%) 117 119
SWEETWATER
Deer Park 9700 7.5 7.5 100 10.6 9.1 116
Larsen Creek 9000 -M 4.7 * 8.5 7.5 113
South Pass 9040 7.3 7.5 97 9.0 8.4 107
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Basin Index (%) 99 112
LOWER N. PLATTE
Casper Mtn. 7900 3.8 6.6 58 9.0 7.6 118
Laprele Creek 8375 3.0 4.8 62 6.2 6.5 95
Reno Hill 8400 5.6 7.0 80 9.3 8.0 116
Windy Peak 7900 3.4 3.9 87 6.7 5.8 116
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Basin Index (%) 71 112
LARAMIE RIVER
Brooklyn Lake 10240 14.3 11.6 123 16.4 12.2 134
Cinnabar Park 9574 12.6 11.6 109 15.0 14.0 107
Crow Creek 8330 2.6 4.6 57 5.7 6.1 93
Deadman Hill 10220 13.0 9.8 133 12.1 9.7 125
Rawah 9020 6.9 6.2 111 9.7 9.3 104
Roach 9700 10.9 9.0 121 13.1 10.8 121
Windy Peak 7900 3.4 3.9 87 6.7 5.8 116
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Basin Index (%) 112 116
S. PLATTE
Crow Creek 8330 2.6 4.6 57 5.7 6.1 93
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Basin Index (%) 57 93
LITTLE SNAKE RIVER
Battle Mountain 7440 6.1 6.4 95 11.0 9.0 122
Divide Peak 8880 10.0 10.6 94 14.9 12.4 120
Elk River 8700 13.0 9.8 133 16.6 11.0 151
Elkhead Divide 8780 12.3 -M * 16.0 -M *
Little Snake River 8915 15.4 14.0 110 23.3 19.3 121
Old Battle 10000 20.2 16.5 122 21.6 19.6 110
Sage Creek Basin 7850 5.7 7.8 73 7.9 7.7 103
Sandstone RS 8150 8.2 7.4 111 11.2 10.6 106
Whiskey Park 8950 19.0 14.7 129 21.4 17.0 126
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Basin Index (%) 112 120
UPPER GREEN RIVER
Big Sandy Opening 9080 6.7 7.2 93 8.7 7.2 121
Blind Bull Sum 8650 14.7 12.8 115 11.2 11.0 102
East Rim Divide 7930 -M 6.4 * -M 6.8 *
Elkhart Park G.S. 9400 5.7 7.0 81 6.7 7.6 88
Gros Ventre Summit 8750 7.7 7.4 104 8.2 7.2 114
Gunsight Pass 9820 9.0 7.4 122 9.8 8.2 120
Indian Creek 9425 14.7 12.3 120 14.3 11.4 125
Kendall R.S. 7740 7.0 6.8 103 10.6 8.2 129
Larsen Creek 9000 -M 4.7 * 8.5 7.5 113
Loomis Park 8240 8.6 8.4 102 11.5 9.8 117
New Fork Lake 8340 5.8 6.3 92 -M 6.6 *
Pocket Creek 9360 -M -M * -M -M *
Snider Basin 8060 7.1 7.4 96 12.2 8.0 152
Spring Creek Divide 9000 14.8 13.2 112 16.9 13.4 126
Triple Peak 8500 15.2 12.1 126 18.8 14.4 131
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Basin Index (%) 108 121
LOWER GREEN RIVER
Blacks Fork Jct 8869 5.9 4.6 128 8.7 6.8 128
Buck Pasture 9632 8.8 -M * 11.3 -M *
EF Blacks Fork GS 9360 6.7 5.2 129 -M 6.0 *
Hams Fork 7840 6.8 6.2 110 9.0 6.2 145
Henrys Fork 10182 -M -M * 8.0 -M *
Hewinta 9500 5.7 5.1 112 10.6 7.7 138
Hickerson Park 9122 3.2 3.6 89 5.5 5.7 96
Hole-in-Rock 9168 3.4 3.7 92 6.3 5.8 109
Indian Creek 9425 14.7 12.3 120 14.3 11.4 125
Kelley R.S. 8180 7.9 7.4 107 12.9 9.7 133
Spirit Lk 10235 7.6 6.2 123 10.0 8.7 115
Steel Creek Park 10158 9.6 7.8 123 12.2 8.9 137
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Basin Index (%) 115 126
UPPER BEAR RIVER
Bear River RS 8777 6.0 5.0 120 9.7 6.7 145
Bug Lake 7987 10.2 8.6 119 14.3 9.8 146
Burts Miller Ranch 8000 4.0 3.2 125 5.2 4.8 108
Chalk Creek #1 9171 12.5 11.0 114 16.0 12.8 125
Giveout 6930 5.6 5.1 110 9.7 7.0 139
Hayden Fork 9130 9.7 7.4 131 15.7 11.2 140
Kelley R.S. 8180 7.9 7.4 107 12.9 9.7 133
Lily Lake 9133 6.7 6.6 102 11.4 8.8 130
Monte Cristo 8932 16.0 13.3 120 19.6 14.0 140
Salt River Summit 7640 8.2 6.8 121 11.9 8.8 135
Spring Creek Divide 9000 14.8 13.2 112 16.9 13.4 126
Trial Lake 9992 14.3 11.0 130 17.3 12.6 137
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Basin Index (%) 118 134
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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.
