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 SATURDAY: JANUARY 1 , 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 7.5 7.4 101 10.3 9.9 104
Blind Bull Sum 8650 10.0 9.6 104 8.6 8.4 102
Cottonwood Creek 7670 8.3 8.7 95 14.2 10.9 130
East Rim Divide 7930 -M 4.4 * -M 5.4 *
Grand Targhee 9260 18.0 19.8 91 15.4 16.0 96
Granite Creek 6770 6.0 6.5 92 -M 8.9 *
Grassy Lake 7265 12.6 12.3 102 19.6 16.4 120
Gros Ventre Summit 8750 5.9 6.3 94 6.8 6.0 113
Gunsight Pass 9820 6.8 6.0 113 7.6 6.8 112
Lewis Lake Divide 7850 14.9 12.8 116 20.9 16.0 131
Loomis Park 8240 5.8 6.6 88 8.5 7.7 110
Phillips Bench 8200 9.7 10.6 92 13.5 12.6 107
Salt River Summit 7640 5.6 5.0 112 9.8 7.2 136
Snake River Station 6920 6.6 6.9 96 11.6 10.7 108
Somsen Ranch 6800 5.8 4.8 121 11.2 8.2 137
Spring Creek Divide 9000 10.5 10.2 103 12.7 10.4 122
Thumb Divide 7980 8.8 6.4 138 11.5 8.4 137
Togwotee Pass 9580 10.7 10.8 99 12.0 11.4 105
Triple Peak 8500 10.2 8.8 116 13.8 10.8 128
Two Ocean Plateau 9240 16.1 13.4 120 13.9 12.4 112
Willow Creek 8080 11.5 11.1 104 17.7 15.0 118
Younts Peak 8350 6.5 6.8 96 4.7 7.2 65
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Basin Index (%) 104 115
MADISON HEADWATERS IN WYOMING
Black Bear 8170 19.7 16.4 120 -M 17.9 *
Canyon 7870 4.4 -M * 7.1 -M *
Madison Plateau 7750 11.4 10.0 114 13.5 11.8 114
West Yellowstone 6700 5.5 4.6 120 8.8 7.4 119
Whiskey Creek 6800 7.0 6.2 113 9.3 9.4 99
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Basin Index (%) 117 110
YELLOWSTONE HEADWATERS IN WYOMING
Beartooth Lake 9360 7.7 10.0 77 7.2 9.3 77
Canyon 7870 4.4 -M * 7.1 -M *
Evening Star 9200 13.6 12.4 110 13.0 14.5 90
Fisher Creek 9100 15.2 15.7 97 16.3 15.8 103
Monument Peak 8850 8.2 9.0 91 10.9 10.8 101
Northeast Entrance 7350 2.1 4.0 52 6.0 6.4 94
Parker Peak 9400 9.8 10.6 92 9.6 10.0 96
Sylvan Lake 8420 7.9 9.0 88 12.3 11.9 103
Thumb Divide 7980 8.8 6.4 138 11.5 8.4 137
Two Ocean Plateau 9240 16.1 13.4 120 13.9 12.4 112
White Mill 8700 10.0 10.5 95 10.2 11.2 91
Wolverine 7650 5.0 5.4 93 6.1 6.2 98
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Basin Index (%) 98 100
WIND RIVER
Burroughs Creek 8750 3.9 -M * 6.2 -M *
Castle Creek 8400 1.4 3.3 42 2.6 4.4 59
Cold Springs 9630 -M 3.6 * 7.2 5.0 144
Deer Park 9700 6.2 6.2 100 8.8 8.4 105
Hobbs Park 10100 8.2 6.2 132 9.3 6.2 150
Kirwin 9550 6.0 5.6 107 6.6 6.2 106
Little Warm 9370 6.0 4.4 136 7.9 6.1 130
South Pass 9040 5.9 6.0 98 7.5 7.0 107
St. Lawrence Alt 8620 .8 -M * 5.6 -M *
Togwotee Pass 9580 10.7 10.8 99 12.0 11.4 105
Townsend Creek 8700 4.0 4.2 95 6.9 5.6 123
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Basin Index (%) 104 114
BIGHORN BASIN
Bald Mtn. 9380 7.3 8.8 83 7.3 7.8 94
Bear Trap Meadow 8200 2.6 2.9 90 4.5 4.2 107
Bone Springs Div 9350 6.9 7.5 92 6.7 7.3 92
Grave Springs 8550 2.1 3.2 66 4.4 4.6 96
Kirwin 9550 6.0 5.6 107 6.6 6.2 106
Marquette 8760 1.1 3.5 31 3.9 4.8 81
Middle Powder 7760 2.7 4.4 61 4.9 5.0 98
Owl Creek 8975 3.0 2.6 115 4.2 3.4 124
Powder River Pass 9480 4.8 5.2 92 4.0 6.2 65
Shell Creek 9580 6.6 7.3 90 7.2 6.7 107
Timber Creek 7950 1.0 2.3 43 2.2 4.2 52
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Basin Index (%) 83 93
SHOSHONE RIVER
Blackwater 9780 10.8 11.0 98 11.6 10.6 109
Evening Star 9200 13.6 12.4 110 13.0 14.5 90
Marquette 8760 1.1 3.5 31 3.9 4.8 81
Sylvan Lake 8420 7.9 9.0 88 12.3 11.9 103
Sylvan Road 7120 3.6 5.8 62 7.5 9.0 83
Younts Peak 8350 6.5 6.8 96 4.7 7.2 65
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Basin Index (%) 90 91
POWDER RIVER
Bear Trap Meadow 8200 2.6 2.9 90 4.5 4.2 107
Cloud Peak Reservoir 9860 6.6 6.4 103 7.9 6.4 123
Grave Springs 8550 2.1 3.2 66 4.4 4.6 96
Hansen Sawmill 8360 3.3 3.1 106 5.3 4.2 126
Middle Powder 7760 2.7 4.4 61 4.9 5.0 98
Powder River Pass 9480 4.8 5.2 92 4.0 6.2 65
Soldier Park 8720 .0 2.4 0 5.2 4.5 116
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Basin Index (%) 80 103
TONGUE RIVER
Big Goose 7990 2.4 3.6 67 6.6 5.0 132
Bone Springs Div 9350 6.9 7.5 92 6.7 7.3 92
Burgess Junction 7880 3.6 4.8 75 6.0 5.8 103
Dome Lake 8880 4.2 4.8 88 7.0 5.8 121
Little Goose 8870 3.5 4.5 78 7.2 5.7 126
Sucker Creek 8880 5.1 5.3 96 7.2 6.2 116
Tie Creek 6870 .7 2.0 35 5.7 5.2 110
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Basin Index (%) 81 113
BELLE FOURCHE
Blind Park 6890 1.8 3.2 56 4.0 4.9 82
Cole Canyon 5910 .8 2.5 32 4.9 4.1 120
North Rapid Creek 6130 1.6 3.2 50 3.1 3.8 82
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Basin Index (%) 47 94
CHEYENNE RIVER BASIN
Blind Park 6890 1.8 3.2 56 4.0 4.9 82
North Rapid Creek 6130 1.6 3.2 50 3.1 3.8 82
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Basin Index (%) 53 82
UPPER N. PLATTE
Arapaho Ridge 10960 10.4 10.0 104 10.1 10.2 99
Blackhall Mtn 9820 15.5 12.3 126 17.5 13.7 128
Cinnabar Park 9574 9.8 9.2 107 12.4 11.0 113
Columbine 9160 9.1 8.8 103 12.7 10.6 120
Divide Peak 8880 8.3 7.6 109 13.1 9.9 132
Joe Wright 10120 10.1 8.5 119 16.2 11.4 142
Laprele Creek 8375 1.6 3.7 43 4.7 5.4 87
Med Bow 10500 18.4 -M * 17.7 -M *
Never Summer 10280 11.5 8.4 137 8.8 8.2 107
North French Creek 10130 14.7 11.6 127 15.8 12.0 132
Old Battle 10000 16.2 12.4 131 17.9 14.8 121
Rawah 9020 4.9 4.8 102 7.9 7.6 104
Sage Creek Basin 7850 4.4 5.7 77 6.7 6.7 100
Sand Lake 10050 14.0 11.4 123 14.6 10.8 135
South Brush Creek 8440 4.9 4.7 104 7.5 6.0 125
Tower 10500 19.7 16.8 117 22.2 17.0 131
Webber Springs 9250 11.4 9.2 124 14.6 11.4 128
Whiskey Park 8950 14.8 9.8 151 17.7 12.5 142
Willow Creek Pass 9540 7.7 5.8 133 8.2 6.6 124
Zirkel 9340 12.1 10.6 114 18.1 13.2 137
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Basin Index (%) 117 124
SWEETWATER
Deer Park 9700 6.2 6.2 100 8.8 8.4 105
Larsen Creek 9000 -M 2.9 * 6.8 5.8 117
South Pass 9040 5.9 6.0 98 7.5 7.0 107
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Basin Index (%) 99 109
LOWER N. PLATTE
Casper Mtn. 7900 2.6 5.4 48 7.7 6.6 117
Laprele Creek 8375 1.6 3.7 43 4.7 5.4 87
Reno Hill 8400 3.9 5.8 67 7.8 6.6 118
Windy Peak 7900 2.0 3.0 67 5.3 4.7 113
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Basin Index (%) 56 109
LARAMIE RIVER
Brooklyn Lake 10240 10.8 8.4 129 13.3 8.9 149
Cinnabar Park 9574 9.8 9.2 107 12.4 11.0 113
Crow Creek 8330 1.6 3.8 42 4.6 5.2 88
Deadman Hill 10220 10.4 7.7 135 9.7 8.0 121
Rawah 9020 4.9 4.8 102 7.9 7.6 104
Roach 9700 8.3 6.6 126 10.7 8.9 120
Windy Peak 7900 2.0 3.0 67 5.3 4.7 113
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Basin Index (%) 110 118
S. PLATTE
Crow Creek 8330 1.6 3.8 42 4.6 5.2 88
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Basin Index (%) 42 88
LITTLE SNAKE RIVER
Battle Mountain 7440 4.6 4.3 107 9.6 6.6 145
Divide Peak 8880 8.3 7.6 109 13.1 9.9 132
Elk River 8700 9.9 7.0 141 14.2 8.6 165
Elkhead Divide 8780 10.0 -M * 13.9 -M *
Little Snake River 8915 11.5 10.4 111 19.1 15.1 126
Old Battle 10000 16.2 12.4 131 17.9 14.8 121
Sage Creek Basin 7850 4.4 5.7 77 6.7 6.7 100
Sandstone RS 8150 6.2 5.0 124 9.6 8.0 120
Whiskey Park 8950 14.8 9.8 151 17.7 12.5 142
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Basin Index (%) 122 131
UPPER GREEN RIVER
Big Sandy Opening 9080 4.7 6.0 78 6.9 6.0 115
Blind Bull Sum 8650 10.0 9.6 104 8.6 8.4 102
East Rim Divide 7930 -M 4.4 * -M 5.4 *
Elkhart Park G.S. 9400 3.6 5.8 62 4.7 6.4 73
Gros Ventre Summit 8750 5.9 6.3 94 6.8 6.0 113
Gunsight Pass 9820 6.8 6.0 113 7.6 6.8 112
Indian Creek 9425 11.7 10.0 117 11.8 9.3 127
Kendall R.S. 7740 4.2 5.2 81 7.7 6.8 113
Larsen Creek 9000 -M 2.9 * 6.8 5.8 117
Loomis Park 8240 5.8 6.6 88 8.5 7.7 110
New Fork Lake 8340 3.6 4.6 78 -M 5.2 *
Pocket Creek 9360 -M -M * -M -M *
Snider Basin 8060 4.4 5.1 86 9.4 6.5 145
Spring Creek Divide 9000 10.5 10.2 103 12.7 10.4 122
Triple Peak 8500 10.2 8.8 116 13.8 10.8 128
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Basin Index (%) 97 116
LOWER GREEN RIVER
Blacks Fork Jct 8869 4.5 3.2 141 7.4 5.8 128
Buck Pasture 9632 7.2 -M * 10.6 -M *
EF Blacks Fork GS 9360 5.1 4.0 128 7.1 5.2 137
Hams Fork 7840 4.0 4.6 87 7.4 5.2 142
Henrys Fork 10182 -M -M * 8.3 -M *
Hewinta 9500 4.6 3.9 118 9.1 6.6 138
Hickerson Park 9122 2.9 3.0 97 5.3 4.9 108
Hole-in-Rock 9168 2.7 3.0 90 5.6 4.9 114
Indian Creek 9425 11.7 10.0 117 11.8 9.3 127
Kelley R.S. 8180 5.1 6.0 85 10.4 7.8 133
Spirit Lk 10235 6.8 5.1 133 9.9 7.8 127
Steel Creek Park 10158 8.2 6.1 134 10.6 7.4 143
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Basin Index (%) 114 130
UPPER BEAR RIVER
Bear River RS 8777 4.9 3.7 132 8.6 5.4 159
Bug Lake 7987 8.2 6.5 126 11.8 8.0 148
Burts Miller Ranch 8000 3.2 2.3 139 4.4 3.7 119
Chalk Creek #1 9171 11.2 9.0 124 14.2 10.3 138
Giveout 6930 3.9 3.4 115 8.0 5.8 138
Hayden Fork 9130 8.5 5.6 152 13.7 8.9 154
Kelley R.S. 8180 5.1 6.0 85 10.4 7.8 133
Lily Lake 9133 5.4 4.8 112 10.4 7.2 144
Monte Cristo 8932 12.3 9.8 126 15.8 11.2 141
Salt River Summit 7640 5.6 5.0 112 9.8 7.2 136
Spring Creek Divide 9000 10.5 10.2 103 12.7 10.4 122
Trial Lake 9992 12.4 8.4 148 12.4 9.8 127
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Basin Index (%) 122 138
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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.
