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 SUNDAY: JANUARY 23 , 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 10.1 10.4 97 13.0 13.0 100
Blind Bull Sum 8650 14.6 13.8 106 11.1 11.2 99
Cottonwood Creek 7670 12.2 11.8 103 18.1 14.2 127
East Rim Divide 7930 6.4 6.4 100 8.3 6.8 122
Grand Targhee 9260 22.7 24.3 93 20.2 19.4 104
Granite Creek 6770 8.6 9.4 91 -M 12.0 *
Grassy Lake 7265 15.8 17.8 89 23.2 21.6 107
Gros Ventre Summit 8750 7.6 7.8 97 8.2 7.4 111
Gunsight Pass 9820 9.0 7.6 118 9.7 8.4 115
Lewis Lake Divide 7850 18.2 17.4 105 24.7 21.0 118
Loomis Park 8240 8.6 9.0 96 11.4 10.0 114
Phillips Bench 8200 13.7 15.2 90 17.2 16.3 106
Salt River Summit 7640 8.2 7.2 114 12.2 9.0 136
Snake River Station 6920 8.6 9.9 87 14.1 14.0 101
Somsen Ranch 6800 8.6 7.4 116 13.5 10.1 134
Spring Creek Divide 9000 14.8 13.4 110 16.9 13.6 124
Thumb Divide 7980 10.5 9.0 117 13.1 10.8 121
Togwotee Pass 9580 13.9 13.2 105 15.2 14.4 106
Triple Peak 8500 15.1 12.8 118 18.6 14.7 127
Two Ocean Plateau 9240 19.5 17.4 112 17.2 15.6 110
Willow Creek 8080 16.7 15.8 106 22.5 18.9 119
Younts Peak 8350 10.0 8.7 115 7.1 8.8 81
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Basin Index (%) 103 113
MADISON HEADWATERS IN WYOMING
Black Bear 8170 22.5 21.8 103 -M 22.1 *
Canyon 7870 6.3 -M * 9.0 -M *
Madison Plateau 7750 12.9 13.0 99 15.7 14.8 106
West Yellowstone 6700 6.6 6.4 103 9.8 8.6 114
Whiskey Creek 6800 8.4 8.7 97 -M 11.7 *
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Basin Index (%) 101 109
YELLOWSTONE HEADWATERS IN WYOMING
Beartooth Lake 9360 10.5 13.4 78 10.1 12.0 84
Canyon 7870 6.3 -M * 9.0 -M *
Evening Star 9200 17.1 16.2 106 16.9 17.4 97
Fisher Creek 9100 19.4 19.9 97 20.7 19.0 109
Monument Peak 8850 11.0 12.6 87 13.8 13.5 102
Northeast Entrance 7350 3.7 6.0 62 7.5 7.8 96
Parker Peak 9400 12.4 12.5 99 12.5 12.2 102
Sylvan Lake 8420 10.3 11.4 90 14.8 14.0 106
Thumb Divide 7980 10.5 9.0 117 13.1 10.8 121
Two Ocean Plateau 9240 19.5 17.4 112 17.2 15.6 110
White Mill 8700 12.5 14.3 87 12.8 14.0 91
Wolverine 7650 7.6 7.1 107 8.0 7.9 101
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Basin Index (%) 96 102
WIND RIVER
Burroughs Creek 8750 5.7 -M * 8.5 -M *
Castle Creek 8400 2.9 4.4 66 4.1 5.6 73
Cold Springs 9630 6.7 4.6 146 8.8 5.8 152
Deer Park 9700 7.5 7.6 99 10.5 9.6 109
Hobbs Park 10100 9.8 7.4 132 10.6 7.0 151
Kirwin 9550 7.6 6.6 115 8.7 7.3 119
Little Warm 9370 7.8 5.8 134 10.2 7.6 134
South Pass 9040 7.3 7.8 94 9.0 9.0 100
St. Lawrence Alt 8620 -M -M * 6.0 -M *
Togwotee Pass 9580 13.9 13.2 105 15.2 14.4 106
Townsend Creek 8700 4.8 4.8 100 7.7 6.4 120
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Basin Index (%) 110 117
BIGHORN BASIN
Bald Mtn. 9380 9.4 10.5 90 9.2 9.4 98
Bear Trap Meadow 8200 3.5 3.7 95 5.6 5.0 112
Bone Springs Div 9350 8.9 9.4 95 8.0 8.6 93
Grave Springs 8550 3.3 4.4 75 5.6 5.3 106
Kirwin 9550 7.6 6.6 115 8.7 7.3 119
Marquette 8760 1.6 3.8 42 4.8 5.4 89
Middle Powder 7760 4.0 5.4 74 5.8 5.8 100
Owl Creek 8975 3.6 3.1 116 4.6 3.7 124
Powder River Pass 9480 5.8 6.3 92 5.2 7.8 67
Shell Creek 9580 8.2 8.7 94 8.6 8.2 105
Timber Creek 7950 1.6 2.6 62 3.4 4.4 77
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Basin Index (%) 89 98
SHOSHONE RIVER
Blackwater 9780 13.6 13.9 98 14.7 13.4 110
Evening Star 9200 17.1 16.2 106 16.9 17.4 97
Marquette 8760 1.6 3.8 42 4.8 5.4 89
Sylvan Lake 8420 10.3 11.4 90 14.8 14.0 106
Sylvan Road 7120 5.3 7.4 72 -M 11.0 *
Younts Peak 8350 10.0 8.7 115 7.1 8.8 81
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Basin Index (%) 94 99
POWDER RIVER
Bear Trap Meadow 8200 3.5 3.7 95 5.6 5.0 112
Cloud Peak Reservoir 9860 7.9 7.8 101 9.0 7.6 118
Grave Springs 8550 3.3 4.4 75 5.6 5.3 106
Hansen Sawmill 8360 3.8 4.0 95 6.1 4.8 127
Middle Powder 7760 4.0 5.4 74 5.8 5.8 100
Powder River Pass 9480 5.8 6.3 92 5.2 7.8 67
Soldier Park 8720 1.0 3.4 29 6.0 5.2 115
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Basin Index (%) 84 104
TONGUE RIVER
Big Goose 7990 3.4 4.4 77 7.0 5.8 121
Bone Springs Div 9350 8.9 9.4 95 8.0 8.6 93
Burgess Junction 7880 5.2 6.0 87 7.5 7.0 107
Dome Lake 8880 5.7 6.2 92 8.1 7.0 116
Little Goose 8870 4.3 5.2 83 8.1 6.5 125
Sucker Creek 8880 6.5 6.8 96 9.1 7.8 117
Tie Creek 6870 1.8 3.2 56 7.0 6.2 113
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Basin Index (%) 87 112
BELLE FOURCHE
Blind Park 6890 2.2 4.2 52 4.9 6.0 82
Cole Canyon 5910 1.7 3.1 55 5.6 5.2 108
North Rapid Creek 6130 2.7 4.0 68 3.7 4.8 77
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Basin Index (%) 58 89
CHEYENNE RIVER BASIN
Blind Park 6890 2.2 4.2 52 4.9 6.0 82
North Rapid Creek 6130 2.7 4.0 68 3.7 4.8 77
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Basin Index (%) 60 80
UPPER N. PLATTE
Arapaho Ridge 10960 14.5 12.4 117 14.0 12.8 109
Blackhall Mtn 9820 20.2 16.4 123 21.7 17.2 126
Cinnabar Park 9574 12.6 11.7 108 15.2 14.1 108
Columbine 9160 14.7 13.0 113 17.4 13.8 126
Divide Peak 8880 10.1 11.0 92 15.0 12.7 118
Joe Wright 10120 14.3 10.6 135 20.7 14.7 141
Laprele Creek 8375 3.3 5.0 66 6.6 6.6 100
Med Bow 10500 22.7 -M * 21.3 -M *
Never Summer 10280 14.6 10.7 136 10.7 9.8 109
North French Creek 10130 17.4 15.8 110 18.6 15.5 120
Old Battle 10000 20.3 16.8 121 21.7 20.0 108
Rawah 9020 7.0 6.4 109 9.9 9.4 105
Sage Creek Basin 7850 5.8 7.9 73 7.8 7.7 101
Sand Lake 10050 17.1 15.1 113 17.7 13.6 130
South Brush Creek 8440 6.2 6.4 97 8.6 8.2 105
Tower 10500 28.5 23.4 122 29.0 23.5 123
Webber Springs 9250 14.5 12.0 121 18.0 15.2 118
Whiskey Park 8950 19.0 14.9 128 21.5 17.0 126
Willow Creek Pass 9540 9.4 7.0 134 10.0 7.3 137
Zirkel 9340 17.7 15.8 112 -M 17.3 *
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Basin Index (%) 115 119
SWEETWATER
Deer Park 9700 7.5 7.6 99 10.5 9.6 109
Larsen Creek 9000 -M 4.8 * 8.4 7.6 111
South Pass 9040 7.3 7.8 94 9.0 9.0 100
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Basin Index (%) 96 106
LOWER N. PLATTE
Casper Mtn. 7900 5.0 6.8 74 10.0 7.8 128
Laprele Creek 8375 3.3 5.0 66 6.6 6.6 100
Reno Hill 8400 6.4 7.3 88 10.2 8.2 124
Windy Peak 7900 3.5 3.9 90 6.9 5.8 119
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Basin Index (%) 79 119
LARAMIE RIVER
Brooklyn Lake 10240 14.3 11.7 122 16.5 12.4 133
Cinnabar Park 9574 12.6 11.7 108 15.2 14.1 108
Crow Creek 8330 2.7 4.7 57 5.7 6.4 89
Deadman Hill 10220 13.1 10.0 131 12.2 10.0 122
Rawah 9020 7.0 6.4 109 9.9 9.4 105
Roach 9700 11.2 9.0 124 13.7 11.2 122
Windy Peak 7900 3.5 3.9 90 6.9 5.8 119
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Basin Index (%) 112 116
S. PLATTE
Crow Creek 8330 2.7 4.7 57 5.7 6.4 89
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Basin Index (%) 57 89
LITTLE SNAKE RIVER
Battle Mountain 7440 6.0 6.6 91 11.0 9.4 117
Divide Peak 8880 10.1 11.0 92 15.0 12.7 118
Elk River 8700 13.0 9.9 131 16.7 11.2 149
Elkhead Divide 8780 12.4 -M * 16.0 -M *
Little Snake River 8915 15.4 14.2 108 23.3 19.4 120
Old Battle 10000 20.3 16.8 121 21.7 20.0 108
Sage Creek Basin 7850 5.8 7.9 73 7.8 7.7 101
Sandstone RS 8150 8.3 7.3 114 11.2 10.6 106
Whiskey Park 8950 19.0 14.9 128 21.5 17.0 126
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Basin Index (%) 110 119
UPPER GREEN RIVER
Big Sandy Opening 9080 6.5 7.2 90 8.5 7.6 112
Blind Bull Sum 8650 14.6 13.8 106 11.1 11.2 99
East Rim Divide 7930 6.4 6.4 100 8.3 6.8 122
Elkhart Park G.S. 9400 5.7 7.2 79 6.7 7.6 88
Gros Ventre Summit 8750 7.6 7.8 97 8.2 7.4 111
Gunsight Pass 9820 9.0 7.6 118 9.7 8.4 115
Indian Creek 9425 14.6 12.7 115 14.6 11.9 123
Kendall R.S. 7740 6.8 7.1 96 10.5 8.4 125
Larsen Creek 9000 -M 4.8 * 8.4 7.6 111
Loomis Park 8240 8.6 9.0 96 11.4 10.0 114
New Fork Lake 8340 5.7 6.4 89 6.6 6.7 99
Pocket Creek 9360 -M -M * -M -M *
Snider Basin 8060 6.9 7.6 91 12.0 8.1 148
Spring Creek Divide 9000 14.8 13.4 110 16.9 13.6 124
Triple Peak 8500 15.1 12.8 118 18.6 14.7 127
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Basin Index (%) 103 117
LOWER GREEN RIVER
Blacks Fork Jct 8869 5.6 4.8 117 8.7 7.0 124
Buck Pasture 9632 8.7 -M * 12.3 -M *
EF Blacks Fork GS 9360 6.6 5.7 116 -M 6.1 *
Hams Fork 7840 6.7 6.4 105 9.1 6.5 140
Henrys Fork 10182 -M -M * 8.6 -M *
Hewinta 9500 5.7 5.1 112 10.5 8.0 131
Hickerson Park 9122 3.3 3.6 92 5.7 5.8 98
Hole-in-Rock 9168 3.3 3.8 87 6.2 6.0 103
Indian Creek 9425 14.6 12.7 115 14.6 11.9 123
Kelley R.S. 8180 7.7 7.8 99 12.8 10.0 128
Spirit Lk 10235 7.4 6.3 117 10.1 9.2 110
Steel Creek Park 10158 9.6 8.0 120 12.3 9.0 137
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Basin Index (%) 110 123
UPPER BEAR RIVER
Bear River RS 8777 5.9 5.2 113 9.7 6.7 145
Bug Lake 7987 10.2 8.9 115 14.6 10.4 140
Burts Miller Ranch 8000 3.9 3.3 118 5.0 4.9 102
Chalk Creek #1 9171 12.4 11.4 109 16.6 12.9 129
Giveout 6930 5.3 5.3 100 9.7 7.2 135
Hayden Fork 9130 9.7 7.6 128 16.1 11.4 141
Kelley R.S. 8180 7.7 7.8 99 12.8 10.0 128
Lily Lake 9133 6.7 6.8 99 11.4 8.8 130
Monte Cristo 8932 15.9 13.6 117 20.1 14.4 140
Salt River Summit 7640 8.2 7.2 114 12.2 9.0 136
Spring Creek Divide 9000 14.8 13.4 110 16.9 13.6 124
Trial Lake 9992 14.2 11.2 127 17.7 12.6 140
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Basin Index (%) 113 134
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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.
