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 TUESDAY: JANUARY 11 , 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 9.0 108 12.5 11.1 113
Blind Bull Sum 8650 14.5 11.5 126 11.1 9.6 116
Cottonwood Creek 7670 11.7 9.4 124 17.6 12.0 147
East Rim Divide 7930 -M 5.1 * -M 6.0 *
Grand Targhee 9260 -M 22.2 * 19.5 17.2 113
Granite Creek 6770 8.5 7.7 110 -M 10.0 *
Grassy Lake 7265 15.3 14.8 103 22.7 18.1 125
Gros Ventre Summit 8750 7.5 6.9 109 8.1 6.8 119
Gunsight Pass 9820 8.7 6.7 130 9.5 7.4 128
Lewis Lake Divide 7850 18.1 15.0 121 23.9 17.8 134
Loomis Park 8240 8.5 7.1 120 11.2 8.8 127
Phillips Bench 8200 13.3 11.9 112 16.7 13.4 125
Salt River Summit 7640 7.8 5.6 139 12.1 7.8 155
Snake River Station 6920 8.4 8.1 104 13.7 12.1 113
Somsen Ranch 6800 8.3 5.6 148 13.5 9.0 150
Spring Creek Divide 9000 14.6 11.0 133 16.6 11.7 142
Thumb Divide 7980 10.4 7.6 137 13.0 9.2 141
Togwotee Pass 9580 13.5 12.0 112 15.0 12.7 118
Triple Peak 8500 14.9 10.6 141 18.4 12.2 151
Two Ocean Plateau 9240 19.2 15.6 123 16.7 14.6 114
Willow Creek 8080 16.3 13.2 123 22.0 16.6 133
Younts Peak 8350 9.9 7.4 134 7.2 7.8 92
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Basin Index (%) 122 128
MADISON HEADWATERS IN WYOMING
Black Bear 8170 21.9 19.3 113 -M 20.0 *
Canyon 7870 6.0 -M * 8.8 -M *
Madison Plateau 7750 12.8 11.1 115 15.5 13.2 117
West Yellowstone 6700 6.4 5.5 116 9.6 7.8 123
Whiskey Creek 6800 8.1 7.2 112 10.0 10.9 92
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Basin Index (%) 114 110
YELLOWSTONE HEADWATERS IN WYOMING
Beartooth Lake 9360 10.2 11.6 88 9.9 11.0 90
Canyon 7870 6.0 -M * 8.8 -M *
Evening Star 9200 16.9 14.0 121 16.6 16.0 104
Fisher Creek 9100 18.8 17.2 109 19.9 17.6 113
Monument Peak 8850 10.0 10.6 94 12.6 12.1 104
Northeast Entrance 7350 3.4 4.8 71 7.2 7.0 103
Parker Peak 9400 11.9 11.4 104 12.0 11.0 109
Sylvan Lake 8420 9.9 10.2 97 14.4 13.0 111
Thumb Divide 7980 10.4 7.6 137 13.0 9.2 141
Two Ocean Plateau 9240 19.2 15.6 123 16.7 14.6 114
White Mill 8700 12.0 12.4 97 12.3 12.6 98
Wolverine 7650 7.6 6.0 127 7.8 7.1 110
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Basin Index (%) 107 109
WIND RIVER
Burroughs Creek 8750 5.8 -M * 8.8 -M *
Castle Creek 8400 2.9 3.6 81 4.0 4.9 82
Cold Springs 9630 6.8 4.1 166 8.9 5.2 171
Deer Park 9700 7.5 6.8 110 10.6 8.7 122
Hobbs Park 10100 10.0 6.9 145 10.7 6.5 165
Kirwin 9550 7.6 6.0 127 8.8 6.6 133
Little Warm 9370 7.7 5.2 148 10.1 6.6 153
South Pass 9040 7.2 6.6 109 9.1 7.6 120
St. Lawrence Alt 8620 1.1 -M * 6.1 -M *
Togwotee Pass 9580 13.5 12.0 112 15.0 12.7 118
Townsend Creek 8700 4.7 4.4 107 7.6 6.0 127
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Basin Index (%) 122 131
BIGHORN BASIN
Bald Mtn. 9380 8.4 9.8 86 8.3 8.2 101
Bear Trap Meadow 8200 3.3 3.4 97 5.4 4.7 115
Bone Springs Div 9350 8.3 8.2 101 7.8 8.0 98
Grave Springs 8550 2.9 3.8 76 5.1 4.9 104
Kirwin 9550 7.6 6.0 127 8.8 6.6 133
Marquette 8760 1.6 3.8 42 4.8 5.2 92
Middle Powder 7760 3.6 4.8 75 5.6 5.4 104
Owl Creek 8975 3.6 2.8 129 4.6 3.4 135
Powder River Pass 9480 5.5 5.8 95 5.1 7.0 73
Shell Creek 9580 7.5 7.9 95 8.0 7.4 108
Timber Creek 7950 1.5 2.5 60 3.4 4.2 81
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Basin Index (%) 91 103
SHOSHONE RIVER
Blackwater 9780 13.6 12.4 110 14.7 12.1 121
Evening Star 9200 16.9 14.0 121 16.6 16.0 104
Marquette 8760 1.6 3.8 42 4.8 5.2 92
Sylvan Lake 8420 9.9 10.2 97 14.4 13.0 111
Sylvan Road 7120 5.2 6.2 84 -M 10.2 *
Younts Peak 8350 9.9 7.4 134 7.2 7.8 92
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Basin Index (%) 106 107
POWDER RIVER
Bear Trap Meadow 8200 3.3 3.4 97 5.4 4.7 115
Cloud Peak Reservoir 9860 7.3 7.1 103 8.5 6.8 125
Grave Springs 8550 2.9 3.8 76 5.1 4.9 104
Hansen Sawmill 8360 3.7 3.6 103 6.1 4.6 133
Middle Powder 7760 3.6 4.8 75 5.6 5.4 104
Powder River Pass 9480 5.5 5.8 95 5.1 7.0 73
Soldier Park 8720 .9 2.9 31 5.7 4.8 119
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Basin Index (%) 87 109
TONGUE RIVER
Big Goose 7990 3.1 3.9 79 6.7 5.4 124
Bone Springs Div 9350 8.3 8.2 101 7.8 8.0 98
Burgess Junction 7880 4.4 5.1 86 6.8 6.4 106
Dome Lake 8880 5.3 5.5 96 7.7 6.6 117
Little Goose 8870 4.0 4.8 83 7.7 6.0 128
Sucker Creek 8880 5.7 6.0 95 8.1 6.8 119
Tie Creek 6870 1.2 2.4 50 6.4 5.6 114
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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 1.3 2.8 46 5.4 4.4 123
North Rapid Creek 6130 2.2 3.6 61 3.4 4.2 81
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Basin Index (%) 53 94
CHEYENNE RIVER BASIN
Blind Park 6890 1.8 3.6 50 4.3 5.4 80
North Rapid Creek 6130 2.2 3.6 61 3.4 4.2 81
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Basin Index (%) 56 80
UPPER N. PLATTE
Arapaho Ridge 10960 14.3 11.2 128 13.7 11.6 118
Blackhall Mtn 9820 19.4 13.2 147 21.0 15.6 135
Cinnabar Park 9574 12.3 10.7 115 14.8 13.0 114
Columbine 9160 14.3 10.8 132 17.2 11.7 147
Divide Peak 8880 9.7 9.4 103 14.5 11.6 125
Joe Wright 10120 13.7 9.7 141 20.0 12.6 159
Laprele Creek 8375 2.5 4.4 57 5.8 5.8 100
Med Bow 10500 21.7 -M * 20.6 -M *
Never Summer 10280 14.1 9.8 144 10.3 9.2 112
North French Creek 10130 16.7 13.6 123 17.8 13.7 130
Old Battle 10000 19.8 15.0 132 21.3 17.5 122
Rawah 9020 6.6 5.6 118 9.5 8.5 112
Sage Creek Basin 7850 5.3 6.5 82 7.6 7.2 106
Sand Lake 10050 16.5 13.1 126 17.1 11.9 144
South Brush Creek 8440 5.7 5.6 102 8.2 7.0 117
Tower 10500 28.0 19.4 144 28.7 20.0 144
Webber Springs 9250 14.4 10.6 136 17.6 13.2 133
Whiskey Park 8950 18.6 11.4 163 21.0 14.7 143
Willow Creek Pass 9540 8.9 6.5 137 9.6 7.0 137
Zirkel 9340 17.7 13.8 128 24.0 16.0 150
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Basin Index (%) 129 132
SWEETWATER
Deer Park 9700 7.5 6.8 110 10.6 8.7 122
Larsen Creek 9000 -M 3.8 * 8.5 6.5 131
South Pass 9040 7.2 6.6 109 9.1 7.6 120
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Basin Index (%) 110 124
LOWER N. PLATTE
Casper Mtn. 7900 3.2 5.9 54 8.5 7.0 121
Laprele Creek 8375 2.5 4.4 57 5.8 5.8 100
Reno Hill 8400 4.9 6.6 74 8.7 7.4 118
Windy Peak 7900 3.3 3.4 97 6.5 5.2 125
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Basin Index (%) 68 116
LARAMIE RIVER
Brooklyn Lake 10240 14.0 10.2 137 16.2 10.7 151
Cinnabar Park 9574 12.3 10.7 115 14.8 13.0 114
Crow Creek 8330 2.6 4.2 62 5.5 5.9 93
Deadman Hill 10220 12.5 8.8 142 11.7 8.8 133
Rawah 9020 6.6 5.6 118 9.5 8.5 112
Roach 9700 10.5 8.0 131 13.0 9.6 135
Windy Peak 7900 3.3 3.4 97 6.5 5.2 125
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Basin Index (%) 121 125
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 5.3 108 10.7 8.0 134
Divide Peak 8880 9.7 9.4 103 14.5 11.6 125
Elk River 8700 12.6 8.0 158 16.4 9.8 167
Elkhead Divide 8780 12.1 -M * 15.6 -M *
Little Snake River 8915 14.9 12.4 120 22.7 17.6 129
Old Battle 10000 19.8 15.0 132 21.3 17.5 122
Sage Creek Basin 7850 5.3 6.5 82 7.6 7.2 106
Sandstone RS 8150 8.0 6.0 133 10.9 9.0 121
Whiskey Park 8950 18.6 11.4 163 21.0 14.7 143
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Basin Index (%) 128 131
UPPER GREEN RIVER
Big Sandy Opening 9080 6.4 6.9 93 8.4 7.0 120
Blind Bull Sum 8650 14.5 11.5 126 11.1 9.6 116
East Rim Divide 7930 -M 5.1 * -M 6.0 *
Elkhart Park G.S. 9400 5.6 6.1 92 6.6 6.8 97
Gros Ventre Summit 8750 7.5 6.9 109 8.1 6.8 119
Gunsight Pass 9820 8.7 6.7 130 9.5 7.4 128
Indian Creek 9425 14.8 10.6 140 14.4 9.8 147
Kendall R.S. 7740 6.7 6.0 112 10.4 7.2 144
Larsen Creek 9000 -M 3.8 * 8.5 6.5 131
Loomis Park 8240 8.5 7.1 120 11.2 8.8 127
New Fork Lake 8340 5.7 5.4 106 -M 6.0 *
Pocket Creek 9360 -M -M * -M -M *
Snider Basin 8060 7.0 6.1 115 12.1 6.9 175
Spring Creek Divide 9000 14.6 11.0 133 16.6 11.7 142
Triple Peak 8500 14.9 10.6 141 18.4 12.2 151
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Basin Index (%) 121 134
LOWER GREEN RIVER
Blacks Fork Jct 8869 5.5 3.8 145 8.2 6.2 132
Buck Pasture 9632 8.7 -M * 12.2 -M *
EF Blacks Fork GS 9360 6.9 4.3 160 -M 5.4 *
Hams Fork 7840 6.5 5.2 125 8.9 5.8 153
Henrys Fork 10182 -M -M * 8.3 -M *
Hewinta 9500 5.6 4.4 127 10.3 7.2 143
Hickerson Park 9122 3.1 3.2 97 5.5 5.2 106
Hole-in-Rock 9168 3.2 3.3 97 6.1 5.5 111
Indian Creek 9425 14.8 10.6 140 14.4 9.8 147
Kelley R.S. 8180 7.6 6.6 115 12.8 9.0 142
Spirit Lk 10235 7.3 5.6 130 10.1 8.4 120
Steel Creek Park 10158 9.4 6.8 138 12.1 8.2 148
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Basin Index (%) 130 135
UPPER BEAR RIVER
Bear River RS 8777 5.9 4.2 140 9.7 6.1 159
Bug Lake 7987 10.5 7.4 142 14.4 9.0 160
Burts Miller Ranch 8000 4.0 3.1 129 5.0 4.2 119
Chalk Creek #1 9171 12.6 10.3 122 16.4 11.4 144
Giveout 6930 5.1 4.1 124 9.5 6.4 148
Hayden Fork 9130 10.1 6.4 158 16.0 10.0 160
Kelley R.S. 8180 7.6 6.6 115 12.8 9.0 142
Lily Lake 9133 6.6 5.7 116 11.3 8.0 141
Monte Cristo 8932 16.0 11.2 143 19.7 12.4 159
Salt River Summit 7640 7.8 5.6 139 12.1 7.8 155
Spring Creek Divide 9000 14.6 11.0 133 16.6 11.7 142
Trial Lake 9992 14.4 9.4 153 17.4 10.8 161
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Basin Index (%) 136 151
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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.
