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 4 , 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 7.7 7.8 99 10.5 10.4 101
Blind Bull Sum 8650 10.1 9.8 103 8.9 8.6 103
Cottonwood Creek 7670 8.4 8.8 95 14.3 11.1 129
East Rim Divide 7930 -M 4.6 * -M 5.4 *
Grand Targhee 9260 18.1 20.2 90 16.9 16.3 104
Granite Creek 6770 6.1 6.8 90 9.0 9.2 98
Grassy Lake 7265 12.7 12.9 98 19.8 16.6 119
Gros Ventre Summit 8750 6.3 6.4 98 7.0 6.4 109
Gunsight Pass 9820 7.0 6.2 113 7.9 7.0 113
Lewis Lake Divide 7850 14.9 13.2 113 21.1 16.4 129
Loomis Park 8240 5.9 6.8 87 8.7 7.8 112
Phillips Bench 8200 10.0 11.0 91 13.7 12.7 108
Salt River Summit 7640 5.8 5.0 116 10.1 7.2 140
Snake River Station 6920 6.7 7.2 93 12.0 11.1 108
Somsen Ranch 6800 5.9 4.9 120 11.4 8.3 137
Spring Creek Divide 9000 10.8 10.3 105 13.1 10.9 120
Thumb Divide 7980 8.9 6.5 137 11.8 8.7 136
Togwotee Pass 9580 10.8 11.5 94 12.2 11.8 103
Triple Peak 8500 10.3 9.0 114 14.2 11.0 129
Two Ocean Plateau 9240 16.2 13.8 117 14.2 13.2 108
Willow Creek 8080 11.7 11.4 103 17.9 15.4 116
Younts Peak 8350 7.0 7.0 100 5.5 7.4 74
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Basin Index (%) 102 114
MADISON HEADWATERS IN WYOMING
Black Bear 8170 19.9 17.0 117 -M 18.6 *
Canyon 7870 4.7 -M * 7.7 -M *
Madison Plateau 7750 11.5 10.2 113 14.4 12.2 118
West Yellowstone 6700 5.6 4.8 117 8.9 7.4 120
Whiskey Creek 6800 7.1 6.4 111 10.6 9.7 109
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Basin Index (%) 115 116
YELLOWSTONE HEADWATERS IN WYOMING
Beartooth Lake 9360 8.0 10.8 74 7.6 9.9 77
Canyon 7870 4.7 -M * 7.7 -M *
Evening Star 9200 13.8 13.2 105 13.5 14.9 91
Fisher Creek 9100 15.5 16.0 97 17.0 16.4 104
Monument Peak 8850 8.6 9.3 92 11.2 11.1 101
Northeast Entrance 7350 2.3 4.4 52 6.0 6.6 91
Parker Peak 9400 10.1 10.8 94 10.3 10.4 99
Sylvan Lake 8420 8.1 9.4 86 12.6 12.2 103
Thumb Divide 7980 8.9 6.5 137 11.8 8.7 136
Two Ocean Plateau 9240 16.2 13.8 117 14.2 13.2 108
White Mill 8700 10.1 11.2 90 10.6 11.8 90
Wolverine 7650 5.3 5.6 95 6.4 6.4 100
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Basin Index (%) 96 100
WIND RIVER
Burroughs Creek 8750 4.0 -M * 6.7 -M *
Castle Creek 8400 1.6 3.4 47 2.9 4.6 63
Cold Springs 9630 5.5 4.0 138 7.5 5.0 150
Deer Park 9700 6.2 6.0 103 9.2 8.4 110
Hobbs Park 10100 8.7 6.8 128 9.6 6.4 150
Kirwin 9550 6.3 5.8 109 7.4 6.3 117
Little Warm 9370 6.3 4.6 137 8.4 6.2 135
South Pass 9040 5.9 6.4 92 7.8 7.2 108
St. Lawrence Alt 8620 .9 -M * 5.7 -M *
Togwotee Pass 9580 10.8 11.5 94 12.2 11.8 103
Townsend Creek 8700 4.2 4.2 100 7.0 5.8 121
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Basin Index (%) 105 117
BIGHORN BASIN
Bald Mtn. 9380 7.6 9.0 84 7.7 8.0 96
Bear Trap Meadow 8200 3.0 3.0 100 5.0 4.4 114
Bone Springs Div 9350 7.5 7.6 99 7.1 7.4 96
Grave Springs 8550 2.4 3.7 65 4.1 4.6 89
Kirwin 9550 6.3 5.8 109 7.4 6.3 117
Marquette 8760 1.2 3.6 33 4.1 5.0 82
Middle Powder 7760 3.2 4.5 71 5.3 5.2 102
Owl Creek 8975 3.1 2.7 115 4.0 3.4 118
Powder River Pass 9480 4.8 5.2 92 4.5 6.6 68
Shell Creek 9580 6.9 7.4 93 7.3 7.0 104
Timber Creek 7950 1.0 2.4 42 3.3 4.2 79
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Basin Index (%) 86 96
SHOSHONE RIVER
Blackwater 9780 11.2 11.6 97 12.1 11.2 108
Evening Star 9200 13.8 13.2 105 13.5 14.9 91
Marquette 8760 1.2 3.6 33 4.1 5.0 82
Sylvan Lake 8420 8.1 9.4 86 12.6 12.2 103
Sylvan Road 7120 3.8 6.0 63 -M 9.2 *
Younts Peak 8350 7.0 7.0 100 5.5 7.4 74
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Basin Index (%) 89 94
POWDER RIVER
Bear Trap Meadow 8200 3.0 3.0 100 5.0 4.4 114
Cloud Peak Reservoir 9860 6.7 6.6 102 8.0 6.6 121
Grave Springs 8550 2.4 3.7 65 4.1 4.6 89
Hansen Sawmill 8360 3.4 3.4 100 6.0 4.2 143
Middle Powder 7760 3.2 4.5 71 5.3 5.2 102
Powder River Pass 9480 4.8 5.2 92 4.5 6.6 68
Soldier Park 8720 .6 2.6 23 5.5 4.6 120
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Basin Index (%) 83 106
TONGUE RIVER
Big Goose 7990 2.8 3.6 78 6.6 5.2 127
Bone Springs Div 9350 7.5 7.6 99 7.1 7.4 96
Burgess Junction 7880 4.0 4.9 82 6.4 5.9 108
Dome Lake 8880 4.6 5.0 92 7.2 6.1 118
Little Goose 8870 3.7 4.6 80 7.4 6.0 123
Sucker Creek 8880 5.3 5.4 98 7.6 6.4 119
Tie Creek 6870 1.0 2.2 45 6.1 5.4 113
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Basin Index (%) 87 114
BELLE FOURCHE
Blind Park 6890 1.8 3.2 56 4.3 5.1 84
Cole Canyon 5910 1.2 2.6 46 5.2 4.2 124
North Rapid Creek 6130 2.1 3.4 62 3.4 3.9 87
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Basin Index (%) 55 98
CHEYENNE RIVER BASIN
Blind Park 6890 1.8 3.2 56 4.3 5.1 84
North Rapid Creek 6130 2.1 3.4 62 3.4 3.9 87
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Basin Index (%) 59 86
UPPER N. PLATTE
Arapaho Ridge 10960 10.5 10.4 101 10.3 10.6 97
Blackhall Mtn 9820 15.8 12.7 124 17.5 14.4 122
Cinnabar Park 9574 9.9 9.4 105 12.6 11.3 112
Columbine 9160 9.2 9.2 100 13.1 11.0 119
Divide Peak 8880 8.5 7.9 108 13.2 10.2 129
Joe Wright 10120 10.3 9.0 114 16.4 11.8 139
Laprele Creek 8375 1.7 3.8 45 4.8 5.5 87
Med Bow 10500 18.5 -M * 18.0 -M *
Never Summer 10280 11.6 8.6 135 8.9 8.4 106
North French Creek 10130 14.7 12.0 122 15.9 12.4 128
Old Battle 10000 16.1 13.1 123 18.0 15.4 117
Rawah 9020 5.0 5.2 96 8.0 7.8 103
Sage Creek Basin 7850 4.5 5.9 76 6.8 6.9 99
Sand Lake 10050 14.3 12.0 119 15.1 11.3 134
South Brush Creek 8440 5.0 4.9 102 7.6 6.2 123
Tower 10500 19.8 17.0 116 22.4 17.9 125
Webber Springs 9250 11.5 9.3 124 14.8 12.0 123
Whiskey Park 8950 14.8 10.0 148 17.8 13.0 137
Willow Creek Pass 9540 7.8 6.0 130 8.4 6.6 127
Zirkel 9340 12.2 10.8 113 18.7 14.3 131
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Basin Index (%) 115 121
SWEETWATER
Deer Park 9700 6.2 6.0 103 9.2 8.4 110
Larsen Creek 9000 -M 2.9 * 7.0 5.8 121
South Pass 9040 5.9 6.4 92 7.8 7.2 108
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Basin Index (%) 98 112
LOWER N. PLATTE
Casper Mtn. 7900 2.7 5.6 48 7.9 6.6 120
Laprele Creek 8375 1.7 3.8 45 4.8 5.5 87
Reno Hill 8400 4.1 6.1 67 7.9 6.6 120
Windy Peak 7900 2.3 3.2 72 5.5 4.9 112
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Basin Index (%) 58 111
LARAMIE RIVER
Brooklyn Lake 10240 11.0 9.1 121 13.4 9.4 143
Cinnabar Park 9574 9.9 9.4 105 12.6 11.3 112
Crow Creek 8330 2.0 3.9 51 4.8 5.6 86
Deadman Hill 10220 10.5 7.9 133 9.8 8.2 120
Rawah 9020 5.0 5.2 96 8.0 7.8 103
Roach 9700 8.6 6.8 126 10.9 9.2 118
Windy Peak 7900 2.3 3.2 72 5.5 4.9 112
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Basin Index (%) 108 115
S. PLATTE
Crow Creek 8330 2.0 3.9 51 4.8 5.6 86
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Basin Index (%) 51 86
LITTLE SNAKE RIVER
Battle Mountain 7440 4.8 4.6 104 9.8 7.4 132
Divide Peak 8880 8.5 7.9 108 13.2 10.2 129
Elk River 8700 10.0 7.2 139 14.3 8.7 164
Elkhead Divide 8780 10.1 -M * 14.1 -M *
Little Snake River 8915 11.6 10.8 107 19.3 15.9 121
Old Battle 10000 16.1 13.1 123 18.0 15.4 117
Sage Creek Basin 7850 4.5 5.9 76 6.8 6.9 99
Sandstone RS 8150 6.3 5.2 121 9.9 8.4 118
Whiskey Park 8950 14.8 10.0 148 17.8 13.0 137
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Basin Index (%) 118 127
UPPER GREEN RIVER
Big Sandy Opening 9080 4.9 6.4 77 7.1 6.4 111
Blind Bull Sum 8650 10.1 9.8 103 8.9 8.6 103
East Rim Divide 7930 -M 4.6 * -M 5.4 *
Elkhart Park G.S. 9400 3.9 5.9 66 5.1 6.4 80
Gros Ventre Summit 8750 6.3 6.4 98 7.0 6.4 109
Gunsight Pass 9820 7.0 6.2 113 7.9 7.0 113
Indian Creek 9425 11.7 10.0 117 12.1 9.4 129
Kendall R.S. 7740 4.4 5.4 81 7.8 6.8 115
Larsen Creek 9000 -M 2.9 * 7.0 5.8 121
Loomis Park 8240 5.9 6.8 87 8.7 7.8 112
New Fork Lake 8340 3.8 4.8 79 -M 5.4 *
Pocket Creek 9360 -M -M * -M -M *
Snider Basin 8060 4.6 5.4 85 9.7 6.6 147
Spring Creek Divide 9000 10.8 10.3 105 13.1 10.9 120
Triple Peak 8500 10.3 9.0 114 14.2 11.0 129
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Basin Index (%) 97 117
LOWER GREEN RIVER
Blacks Fork Jct 8869 4.7 3.5 134 7.4 5.9 125
Buck Pasture 9632 7.2 -M * 10.6 -M *
EF Blacks Fork GS 9360 5.3 4.0 132 -M 5.2 *
Hams Fork 7840 4.3 4.7 91 7.4 5.3 140
Henrys Fork 10182 -M -M * 7.3 -M *
Hewinta 9500 4.7 4.0 118 9.2 6.7 137
Hickerson Park 9122 3.0 3.1 97 5.3 5.0 106
Hole-in-Rock 9168 3.0 3.1 97 6.0 5.2 115
Indian Creek 9425 11.7 10.0 117 12.1 9.4 129
Kelley R.S. 8180 5.4 6.3 86 10.7 8.0 134
Spirit Lk 10235 7.3 5.5 133 10.0 8.1 123
Steel Creek Park 10158 8.3 6.2 134 10.8 7.4 146
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Basin Index (%) 114 129
UPPER BEAR RIVER
Bear River RS 8777 5.0 3.8 132 8.8 5.7 154
Bug Lake 7987 8.3 6.6 126 12.5 8.2 152
Burts Miller Ranch 8000 3.3 2.6 127 4.7 4.1 115
Chalk Creek #1 9171 11.2 9.2 122 14.5 10.5 138
Giveout 6930 4.0 3.4 118 8.0 6.0 133
Hayden Fork 9130 8.4 5.6 150 13.8 9.2 150
Kelley R.S. 8180 5.4 6.3 86 10.7 8.0 134
Lily Lake 9133 5.5 5.2 106 10.4 7.6 137
Monte Cristo 8932 12.2 10.1 121 16.2 11.6 140
Salt River Summit 7640 5.8 5.0 116 10.1 7.2 140
Spring Creek Divide 9000 10.8 10.3 105 13.1 10.9 120
Trial Lake 9992 12.3 8.4 146 15.6 10.0 156
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Basin Index (%) 121 140
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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.
