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 10 , 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 8.6 113 12.5 11.1 113
Blind Bull Sum 8650 14.5 11.0 132 11.0 9.3 118
Cottonwood Creek 7670 11.7 9.2 127 17.6 11.8 149
East Rim Divide 7930 -M 5.0 * -M 5.8 *
Grand Targhee 9260 21.7 22.1 98 19.5 17.0 115
Granite Creek 6770 8.5 7.5 113 10.8 10.0 108
Grassy Lake 7265 15.4 14.2 108 22.7 17.8 128
Gros Ventre Summit 8750 7.4 6.9 107 8.0 6.8 118
Gunsight Pass 9820 8.7 6.7 130 9.5 7.3 130
Lewis Lake Divide 7850 18.1 14.6 124 23.8 17.4 137
Loomis Park 8240 8.5 7.0 121 11.2 8.6 130
Phillips Bench 8200 13.2 11.8 112 16.7 13.4 125
Salt River Summit 7640 7.7 5.6 138 12.1 7.6 159
Snake River Station 6920 8.4 7.7 109 13.8 11.9 116
Somsen Ranch 6800 8.3 5.6 148 13.6 8.8 155
Spring Creek Divide 9000 14.6 11.0 133 16.6 11.6 143
Thumb Divide 7980 10.4 7.2 144 12.9 9.0 143
Togwotee Pass 9580 13.6 12.0 113 14.9 12.4 120
Triple Peak 8500 14.9 9.8 152 18.3 12.0 152
Two Ocean Plateau 9240 19.2 15.1 127 16.6 14.3 116
Willow Creek 8080 16.2 12.8 127 22.0 16.2 136
Younts Peak 8350 9.7 7.2 135 7.0 7.7 91
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Basin Index (%) 122 129
MADISON HEADWATERS IN WYOMING
Black Bear 8170 21.8 18.9 115 -M 20.0 *
Canyon 7870 5.9 -M * 8.7 -M *
Madison Plateau 7750 12.7 11.0 115 15.3 13.0 118
West Yellowstone 6700 6.4 5.4 119 9.5 7.8 122
Whiskey Creek 6800 8.0 7.0 114 9.6 10.8 89
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Basin Index (%) 116 109
YELLOWSTONE HEADWATERS IN WYOMING
Beartooth Lake 9360 10.1 11.5 88 9.8 10.8 91
Canyon 7870 5.9 -M * 8.7 -M *
Evening Star 9200 16.9 13.6 124 16.4 16.0 102
Fisher Creek 9100 18.8 16.9 111 19.8 17.4 114
Monument Peak 8850 9.9 10.4 95 12.6 12.0 105
Northeast Entrance 7350 3.4 4.8 71 7.2 7.0 103
Parker Peak 9400 11.8 11.2 105 12.0 11.0 109
Sylvan Lake 8420 9.9 10.0 99 14.4 12.9 112
Thumb Divide 7980 10.4 7.2 144 12.9 9.0 143
Two Ocean Plateau 9240 19.2 15.1 127 16.6 14.3 116
White Mill 8700 12.0 12.2 98 12.2 12.6 97
Wolverine 7650 7.5 6.0 125 7.8 7.0 111
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Basin Index (%) 109 109
WIND RIVER
Burroughs Creek 8750 5.7 -M * 8.4 -M *
Castle Creek 8400 2.9 3.6 81 4.1 4.8 85
Cold Springs 9630 6.7 4.0 168 8.8 5.2 169
Deer Park 9700 7.4 6.6 112 10.4 8.7 120
Hobbs Park 10100 9.8 6.9 142 10.5 6.5 162
Kirwin 9550 7.5 5.9 127 8.6 6.5 132
Little Warm 9370 7.7 5.1 151 10.1 6.4 158
South Pass 9040 7.2 6.6 109 9.0 7.6 118
St. Lawrence Alt 8620 1.0 -M * 6.1 -M *
Togwotee Pass 9580 13.6 12.0 113 14.9 12.4 120
Townsend Creek 8700 4.6 4.4 105 7.5 6.0 125
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Basin Index (%) 122 131
BIGHORN BASIN
Bald Mtn. 9380 8.3 9.6 86 8.3 8.2 101
Bear Trap Meadow 8200 3.3 3.3 100 5.4 4.7 115
Bone Springs Div 9350 8.2 8.1 101 7.7 7.9 97
Grave Springs 8550 2.8 3.8 74 5.2 4.8 108
Kirwin 9550 7.5 5.9 127 8.6 6.5 132
Marquette 8760 1.6 3.8 42 4.8 5.1 94
Middle Powder 7760 3.6 4.8 75 5.6 5.4 104
Owl Creek 8975 3.6 2.8 129 4.5 3.4 132
Powder River Pass 9480 5.5 5.8 95 5.0 7.0 71
Shell Creek 9580 7.4 7.8 95 8.0 7.3 110
Timber Creek 7950 1.5 2.5 60 3.5 4.2 83
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Basin Index (%) 92 103
SHOSHONE RIVER
Blackwater 9780 13.6 12.3 111 14.7 12.0 122
Evening Star 9200 16.9 13.6 124 16.4 16.0 102
Marquette 8760 1.6 3.8 42 4.8 5.1 94
Sylvan Lake 8420 9.9 10.0 99 14.4 12.9 112
Sylvan Road 7120 5.2 6.2 84 9.5 10.2 93
Younts Peak 8350 9.7 7.2 135 7.0 7.7 91
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Basin Index (%) 107 105
POWDER RIVER
Bear Trap Meadow 8200 3.3 3.3 100 5.4 4.7 115
Cloud Peak Reservoir 9860 7.2 7.0 103 8.5 6.8 125
Grave Springs 8550 2.8 3.8 74 5.2 4.8 108
Hansen Sawmill 8360 3.8 3.5 109 6.1 4.4 139
Middle Powder 7760 3.6 4.8 75 5.6 5.4 104
Powder River Pass 9480 5.5 5.8 95 5.0 7.0 71
Soldier Park 8720 1.0 2.9 34 5.7 4.8 119
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Basin Index (%) 87 109
TONGUE RIVER
Big Goose 7990 3.0 3.8 79 6.8 5.3 128
Bone Springs Div 9350 8.2 8.1 101 7.7 7.9 97
Burgess Junction 7880 4.3 5.1 84 6.7 6.3 106
Dome Lake 8880 5.3 5.4 98 7.7 6.6 117
Little Goose 8870 4.0 4.7 85 7.7 6.0 128
Sucker Creek 8880 5.6 6.0 93 8.0 6.8 118
Tie Creek 6870 1.2 2.4 50 6.3 5.6 112
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Basin Index (%) 89 114
BELLE FOURCHE
Blind Park 6890 1.8 3.6 50 4.3 5.4 80
Cole Canyon 5910 1.2 2.8 43 5.3 4.4 120
North Rapid Creek 6130 2.1 3.6 58 3.5 4.2 83
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Basin Index (%) 51 94
CHEYENNE RIVER BASIN
Blind Park 6890 1.8 3.6 50 4.3 5.4 80
North Rapid Creek 6130 2.1 3.6 58 3.5 4.2 83
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Basin Index (%) 54 81
UPPER N. PLATTE
Arapaho Ridge 10960 14.3 11.2 128 13.6 11.5 118
Blackhall Mtn 9820 19.3 13.2 146 21.0 15.6 135
Cinnabar Park 9574 12.2 10.6 115 14.7 12.9 114
Columbine 9160 14.2 10.4 137 17.1 11.4 150
Divide Peak 8880 9.6 9.2 104 14.4 11.4 126
Joe Wright 10120 13.6 9.6 142 20.0 12.6 159
Laprele Creek 8375 2.5 4.3 58 5.7 5.8 98
Med Bow 10500 21.7 -M * 20.6 -M *
Never Summer 10280 14.1 9.6 147 10.3 9.0 114
North French Creek 10130 16.7 13.0 128 17.8 13.4 133
Old Battle 10000 19.8 14.8 134 21.2 17.0 125
Rawah 9020 6.5 5.6 116 9.4 8.4 112
Sage Creek Basin 7850 5.3 6.4 83 7.5 7.2 104
Sand Lake 10050 16.3 12.9 126 17.0 11.8 144
South Brush Creek 8440 5.7 5.5 104 8.1 7.0 116
Tower 10500 28.0 19.0 147 28.7 19.8 145
Webber Springs 9250 14.3 10.6 135 17.6 13.2 133
Whiskey Park 8950 18.6 11.4 163 21.0 14.6 144
Willow Creek Pass 9540 8.9 6.4 139 9.5 6.9 138
Zirkel 9340 17.5 13.1 134 -M 15.8 *
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Basin Index (%) 131 131
SWEETWATER
Deer Park 9700 7.4 6.6 112 10.4 8.7 120
Larsen Creek 9000 -M 3.7 * 8.5 6.4 133
South Pass 9040 7.2 6.6 109 9.0 7.6 118
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Basin Index (%) 111 123
LOWER N. PLATTE
Casper Mtn. 7900 3.2 5.8 55 8.4 7.0 120
Laprele Creek 8375 2.5 4.3 58 5.7 5.8 98
Reno Hill 8400 4.9 6.5 75 8.7 7.3 119
Windy Peak 7900 3.2 3.3 97 6.4 5.2 123
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Basin Index (%) 69 115
LARAMIE RIVER
Brooklyn Lake 10240 14.0 10.0 140 16.2 10.6 153
Cinnabar Park 9574 12.2 10.6 115 14.7 12.9 114
Crow Creek 8330 2.6 4.1 63 5.5 5.9 93
Deadman Hill 10220 12.5 8.8 142 11.6 8.8 132
Rawah 9020 6.5 5.6 116 9.4 8.4 112
Roach 9700 10.4 7.8 133 13.0 9.6 135
Windy Peak 7900 3.2 3.3 97 6.4 5.2 123
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Basin Index (%) 122 125
S. PLATTE
Crow Creek 8330 2.6 4.1 63 5.5 5.9 93
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Basin Index (%) 63 93
LITTLE SNAKE RIVER
Battle Mountain 7440 5.6 5.2 108 10.7 7.8 137
Divide Peak 8880 9.6 9.2 104 14.4 11.4 126
Elk River 8700 12.5 8.0 156 16.3 9.8 166
Elkhead Divide 8780 12.0 -M * 15.5 -M *
Little Snake River 8915 14.8 12.3 120 22.7 17.3 131
Old Battle 10000 19.8 14.8 134 21.2 17.0 125
Sage Creek Basin 7850 5.3 6.4 83 7.5 7.2 104
Sandstone RS 8150 7.9 5.7 139 10.9 8.8 124
Whiskey Park 8950 18.6 11.4 163 21.0 14.6 144
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Basin Index (%) 129 133
UPPER GREEN RIVER
Big Sandy Opening 9080 6.4 6.8 94 8.4 6.8 124
Blind Bull Sum 8650 14.5 11.0 132 11.0 9.3 118
East Rim Divide 7930 -M 5.0 * -M 5.8 *
Elkhart Park G.S. 9400 5.6 6.0 93 6.5 6.6 98
Gros Ventre Summit 8750 7.4 6.9 107 8.0 6.8 118
Gunsight Pass 9820 8.7 6.7 130 9.5 7.3 130
Indian Creek 9425 14.8 10.6 140 14.4 9.7 148
Kendall R.S. 7740 6.7 5.6 120 10.4 7.0 149
Larsen Creek 9000 -M 3.7 * 8.5 6.4 133
Loomis Park 8240 8.5 7.0 121 11.2 8.6 130
New Fork Lake 8340 5.7 5.2 110 6.5 5.8 112
Pocket Creek 9360 -M -M * -M -M *
Snider Basin 8060 6.8 6.0 113 11.9 6.8 175
Spring Creek Divide 9000 14.6 11.0 133 16.6 11.6 143
Triple Peak 8500 14.9 9.8 152 18.3 12.0 152
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Basin Index (%) 124 135
LOWER GREEN RIVER
Blacks Fork Jct 8869 5.4 3.8 142 8.4 6.2 135
Buck Pasture 9632 8.8 -M * 12.2 -M *
EF Blacks Fork GS 9360 6.9 4.2 164 9.5 5.4 176
Hams Fork 7840 6.5 5.2 125 8.9 5.8 153
Henrys Fork 10182 -M -M * 8.6 -M *
Hewinta 9500 5.7 4.4 130 10.3 7.0 147
Hickerson Park 9122 3.2 3.2 100 5.5 5.2 106
Hole-in-Rock 9168 3.4 3.3 103 6.3 5.5 115
Indian Creek 9425 14.8 10.6 140 14.4 9.7 148
Kelley R.S. 8180 7.6 6.6 115 12.8 8.8 145
Spirit Lk 10235 7.5 5.7 132 10.2 8.3 123
Steel Creek Park 10158 9.4 6.6 142 12.1 8.2 148
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Basin Index (%) 131 140
UPPER BEAR RIVER
Bear River RS 8777 5.9 4.0 148 9.6 6.0 160
Bug Lake 7987 10.5 7.2 146 14.3 9.0 159
Burts Miller Ranch 8000 4.0 3.1 129 5.1 4.2 121
Chalk Creek #1 9171 12.7 9.9 128 16.5 11.3 146
Giveout 6930 5.0 4.1 122 9.5 6.4 148
Hayden Fork 9130 10.2 6.2 165 16.0 10.0 160
Kelley R.S. 8180 7.6 6.6 115 12.8 8.8 145
Lily Lake 9133 6.6 5.6 118 11.3 8.0 141
Monte Cristo 8932 16.1 10.9 148 19.7 12.4 159
Salt River Summit 7640 7.7 5.6 138 12.1 7.6 159
Spring Creek Divide 9000 14.6 11.0 133 16.6 11.6 143
Trial Lake 9992 14.4 9.2 157 17.4 10.6 164
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Basin Index (%) 138 152
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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.
