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 WEDNESDAY: JANUARY 12 , 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 9.7 9.6 101 12.6 11.8 107
Blind Bull Sum 8650 14.6 12.0 122 11.1 10.2 109
Cottonwood Creek 7670 11.7 9.6 122 17.7 12.4 143
East Rim Divide 7930 -M 5.2 * -M 6.3 *
Grand Targhee 9260 21.8 22.8 96 19.7 17.4 113
Granite Creek 6770 8.6 7.8 110 11.8 10.6 111
Grassy Lake 7265 15.5 15.5 100 22.7 18.2 125
Gros Ventre Summit 8750 7.5 7.1 106 8.1 6.8 119
Gunsight Pass 9820 8.7 6.7 130 9.5 7.5 127
Lewis Lake Divide 7850 18.2 15.4 118 24.0 17.8 135
Loomis Park 8240 8.5 7.4 115 11.3 8.8 128
Phillips Bench 8200 13.3 12.6 106 16.8 13.8 122
Salt River Summit 7640 7.9 5.8 136 12.1 8.1 149
Snake River Station 6920 8.4 8.6 98 13.8 12.4 111
Somsen Ranch 6800 8.3 6.0 138 13.5 9.1 148
Spring Creek Divide 9000 14.7 11.2 131 16.7 12.0 139
Thumb Divide 7980 10.4 7.6 137 13.1 9.4 139
Togwotee Pass 9580 13.5 12.6 107 14.9 13.2 113
Triple Peak 8500 14.9 11.2 133 18.6 12.5 149
Two Ocean Plateau 9240 19.3 16.3 118 16.8 14.8 114
Willow Creek 8080 16.4 13.4 122 22.0 16.7 132
Younts Peak 8350 10.0 7.6 132 7.4 8.0 92
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Basin Index (%) 115 125
MADISON HEADWATERS IN WYOMING
Black Bear 8170 21.9 20.0 110 -M 20.4 *
Canyon 7870 6.2 -M * 9.0 -M *
Madison Plateau 7750 12.8 11.2 114 15.6 13.6 115
West Yellowstone 6700 6.4 5.6 114 9.8 7.8 126
Whiskey Creek 6800 8.1 7.4 109 10.4 11.0 95
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Basin Index (%) 111 110
YELLOWSTONE HEADWATERS IN WYOMING
Beartooth Lake 9360 10.2 11.9 86 9.9 11.3 88
Canyon 7870 6.2 -M * 9.0 -M *
Evening Star 9200 16.9 14.0 121 16.7 16.0 104
Fisher Creek 9100 18.8 17.9 105 20.0 17.8 112
Monument Peak 8850 10.1 10.8 94 12.7 12.2 104
Northeast Entrance 7350 3.5 4.9 71 7.2 7.2 100
Parker Peak 9400 12.0 11.5 104 12.1 11.2 108
Sylvan Lake 8420 10.0 10.4 96 14.6 13.2 111
Thumb Divide 7980 10.4 7.6 137 13.1 9.4 139
Two Ocean Plateau 9240 19.3 16.3 118 16.8 14.8 114
White Mill 8700 12.0 13.0 92 12.4 12.7 98
Wolverine 7650 7.6 6.0 127 7.9 7.1 111
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Basin Index (%) 105 108
WIND RIVER
Burroughs Creek 8750 5.8 -M * 8.8 -M *
Castle Creek 8400 3.0 3.8 79 4.2 5.0 84
Cold Springs 9630 6.8 4.2 162 8.9 5.3 168
Deer Park 9700 7.4 6.8 109 10.6 8.8 120
Hobbs Park 10100 10.0 7.0 143 10.7 6.7 160
Kirwin 9550 7.7 6.0 128 8.9 6.6 135
Little Warm 9370 7.7 5.3 145 10.1 6.8 149
South Pass 9040 7.2 6.8 106 9.1 8.0 114
St. Lawrence Alt 8620 1.1 -M * 6.1 -M *
Togwotee Pass 9580 13.5 12.6 107 14.9 13.2 113
Townsend Creek 8700 4.8 4.4 109 7.6 6.0 127
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Basin Index (%) 120 128
BIGHORN BASIN
Bald Mtn. 9380 8.3 9.8 85 8.3 8.5 98
Bear Trap Meadow 8200 3.2 3.4 94 5.4 4.7 115
Bone Springs Div 9350 8.2 8.6 95 7.8 8.0 98
Grave Springs 8550 2.9 3.9 74 4.9 5.0 98
Kirwin 9550 7.7 6.0 128 8.9 6.6 135
Marquette 8760 1.6 3.8 42 4.8 5.2 92
Middle Powder 7760 3.6 4.9 73 5.6 5.4 104
Owl Creek 8975 3.6 2.8 129 4.6 3.4 135
Powder River Pass 9480 5.4 5.8 93 5.1 7.0 73
Shell Creek 9580 7.5 8.2 91 8.0 7.4 108
Timber Creek 7950 1.5 2.5 60 3.7 4.4 84
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Basin Index (%) 90 102
SHOSHONE RIVER
Blackwater 9780 13.7 12.9 106 14.8 12.4 119
Evening Star 9200 16.9 14.0 121 16.7 16.0 104
Marquette 8760 1.6 3.8 42 4.8 5.2 92
Sylvan Lake 8420 10.0 10.4 96 14.6 13.2 111
Sylvan Road 7120 5.3 6.4 83 -M 10.2 *
Younts Peak 8350 10.0 7.6 132 7.4 8.0 92
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Basin Index (%) 104 106
POWDER RIVER
Bear Trap Meadow 8200 3.2 3.4 94 5.4 4.7 115
Cloud Peak Reservoir 9860 7.3 7.2 101 8.4 7.0 120
Grave Springs 8550 2.9 3.9 74 4.9 5.0 98
Hansen Sawmill 8360 3.8 3.6 106 6.1 4.6 133
Middle Powder 7760 3.6 4.9 73 5.6 5.4 104
Powder River Pass 9480 5.4 5.8 93 5.1 7.0 73
Soldier Park 8720 1.0 3.0 33 5.8 4.8 121
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Basin Index (%) 86 107
TONGUE RIVER
Big Goose 7990 3.0 4.0 75 6.7 5.4 124
Bone Springs Div 9350 8.2 8.6 95 7.8 8.0 98
Burgess Junction 7880 4.4 5.4 81 6.7 6.4 105
Dome Lake 8880 5.2 5.5 95 7.6 6.6 115
Little Goose 8870 4.0 4.8 83 7.7 6.2 124
Sucker Creek 8880 5.6 6.1 92 8.1 7.0 116
Tie Creek 6870 1.2 2.6 46 6.4 5.7 112
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Basin Index (%) 85 113
BELLE FOURCHE
Blind Park 6890 1.8 3.6 50 4.4 5.4 81
Cole Canyon 5910 1.3 2.8 46 5.3 4.6 115
North Rapid Creek 6130 2.2 3.7 59 3.4 4.2 81
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Basin Index (%) 52 92
CHEYENNE RIVER BASIN
Blind Park 6890 1.8 3.6 50 4.4 5.4 81
North Rapid Creek 6130 2.2 3.7 59 3.4 4.2 81
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Basin Index (%) 55 81
UPPER N. PLATTE
Arapaho Ridge 10960 14.3 11.3 127 13.8 11.6 119
Blackhall Mtn 9820 19.4 13.3 146 21.0 15.7 134
Cinnabar Park 9574 12.3 11.5 107 14.9 13.1 114
Columbine 9160 14.3 11.1 129 17.2 11.9 145
Divide Peak 8880 9.7 9.6 101 14.5 11.8 123
Joe Wright 10120 13.7 9.8 140 20.0 12.7 157
Laprele Creek 8375 2.6 4.2 62 5.8 6.0 97
Med Bow 10500 21.7 -M * 20.6 -M *
Never Summer 10280 14.1 9.8 144 10.3 9.4 110
North French Creek 10130 16.7 13.8 121 17.8 14.2 125
Old Battle 10000 19.8 15.2 130 21.3 17.6 121
Rawah 9020 6.7 5.7 118 9.4 8.6 109
Sage Creek Basin 7850 5.4 6.6 82 7.6 7.2 106
Sand Lake 10050 16.5 13.4 123 17.1 12.2 140
South Brush Creek 8440 5.7 5.8 98 8.2 7.2 114
Tower 10500 28.0 19.7 142 28.7 20.5 140
Webber Springs 9250 14.3 10.6 135 17.6 13.4 131
Whiskey Park 8950 18.7 11.7 160 21.1 14.9 142
Willow Creek Pass 9540 8.9 6.5 137 9.6 7.0 137
Zirkel 9340 17.7 14.4 123 24.1 16.6 145
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Basin Index (%) 127 130
SWEETWATER
Deer Park 9700 7.4 6.8 109 10.6 8.8 120
Larsen Creek 9000 -M 4.0 * 8.5 6.6 129
South Pass 9040 7.2 6.8 106 9.1 8.0 114
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Basin Index (%) 107 121
LOWER N. PLATTE
Casper Mtn. 7900 3.2 6.0 53 8.4 7.2 117
Laprele Creek 8375 2.6 4.2 62 5.8 6.0 97
Reno Hill 8400 5.0 6.6 76 8.7 7.4 118
Windy Peak 7900 3.3 3.5 94 6.5 5.2 125
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Basin Index (%) 69 114
LARAMIE RIVER
Brooklyn Lake 10240 14.0 10.6 132 16.2 10.8 150
Cinnabar Park 9574 12.3 11.5 107 14.9 13.1 114
Crow Creek 8330 2.6 4.2 62 5.5 5.9 93
Deadman Hill 10220 12.6 9.0 140 11.7 9.0 130
Rawah 9020 6.7 5.7 118 9.4 8.6 109
Roach 9700 10.5 8.1 130 13.0 9.7 134
Windy Peak 7900 3.3 3.5 94 6.5 5.2 125
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Basin Index (%) 118 124
S. PLATTE
Crow Creek 8330 2.6 4.2 62 5.5 5.9 93
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Basin Index (%) 62 93
LITTLE SNAKE RIVER
Battle Mountain 7440 5.7 5.4 106 10.8 8.0 135
Divide Peak 8880 9.7 9.6 101 14.5 11.8 123
Elk River 8700 12.6 8.0 158 16.3 9.9 165
Elkhead Divide 8780 12.1 -M * 15.6 -M *
Little Snake River 8915 14.9 13.0 115 22.8 18.0 127
Old Battle 10000 19.8 15.2 130 21.3 17.6 121
Sage Creek Basin 7850 5.4 6.6 82 7.6 7.2 106
Sandstone RS 8150 8.0 6.0 133 10.9 9.2 118
Whiskey Park 8950 18.7 11.7 160 21.1 14.9 142
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Basin Index (%) 126 130
UPPER GREEN RIVER
Big Sandy Opening 9080 6.5 6.8 96 8.5 7.0 121
Blind Bull Sum 8650 14.6 12.0 122 11.1 10.2 109
East Rim Divide 7930 -M 5.2 * -M 6.3 *
Elkhart Park G.S. 9400 5.6 6.2 90 6.6 6.8 97
Gros Ventre Summit 8750 7.5 7.1 106 8.1 6.8 119
Gunsight Pass 9820 8.7 6.7 130 9.5 7.5 127
Indian Creek 9425 14.8 10.9 136 14.3 10.1 142
Kendall R.S. 7740 6.8 6.3 108 10.4 7.4 141
Larsen Creek 9000 -M 4.0 * 8.5 6.6 129
Loomis Park 8240 8.5 7.4 115 11.3 8.8 128
New Fork Lake 8340 5.7 5.5 104 -M 6.0 *
Pocket Creek 9360 -M -M * -M -M *
Snider Basin 8060 7.0 6.1 115 12.1 7.0 173
Spring Creek Divide 9000 14.7 11.2 131 16.7 12.0 139
Triple Peak 8500 14.9 11.2 133 18.6 12.5 149
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Basin Index (%) 118 132
LOWER GREEN RIVER
Blacks Fork Jct 8869 5.6 3.8 147 8.3 6.4 130
Buck Pasture 9632 8.7 -M * 12.2 -M *
EF Blacks Fork GS 9360 6.9 4.4 157 7.8 5.4 144
Hams Fork 7840 6.5 5.3 123 9.0 5.8 155
Henrys Fork 10182 -M -M * 8.3 -M *
Hewinta 9500 5.7 4.6 124 10.4 7.2 144
Hickerson Park 9122 3.1 3.2 97 5.5 5.2 106
Hole-in-Rock 9168 3.3 3.4 97 6.3 5.6 112
Indian Creek 9425 14.8 10.9 136 14.3 10.1 142
Kelley R.S. 8180 7.7 6.8 113 12.8 9.1 141
Spirit Lk 10235 7.4 5.6 132 10.2 8.4 121
Steel Creek Park 10158 9.5 6.8 140 12.1 8.4 144
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Basin Index (%) 129 135
UPPER BEAR RIVER
Bear River RS 8777 5.9 4.2 140 9.7 6.2 156
Bug Lake 7987 10.6 7.6 139 14.4 9.5 152
Burts Miller Ranch 8000 4.0 3.1 129 5.1 4.3 119
Chalk Creek #1 9171 12.6 10.4 121 16.5 11.4 145
Giveout 6930 5.1 4.2 121 9.5 6.4 148
Hayden Fork 9130 10.1 6.4 158 15.9 10.0 159
Kelley R.S. 8180 7.7 6.8 113 12.8 9.1 141
Lily Lake 9133 6.6 6.0 110 11.3 8.2 138
Monte Cristo 8932 16.1 11.2 144 19.4 12.6 154
Salt River Summit 7640 7.9 5.8 136 12.1 8.1 149
Spring Creek Divide 9000 14.7 11.2 131 16.7 12.0 139
Trial Lake 9992 14.4 9.7 148 17.4 11.0 158
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Basin Index (%) 134 148
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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.
