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 2 , 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 10.4 9.9 105
Blind Bull Sum 8650 9.9 9.6 103 8.7 8.5 102
Cottonwood Creek 7670 8.3 8.7 95 14.2 11.0 129
East Rim Divide 7930 -M 4.6 * -M 5.4 *
Grand Targhee 9260 18.0 19.8 91 16.4 16.0 102
Granite Creek 6770 6.0 6.6 91 8.4 9.0 93
Grassy Lake 7265 12.5 12.3 102 19.6 16.4 120
Gros Ventre Summit 8750 6.1 6.3 97 7.0 6.3 111
Gunsight Pass 9820 6.8 6.0 113 7.8 6.8 115
Lewis Lake Divide 7850 14.9 12.8 116 20.9 16.2 129
Loomis Park 8240 5.8 6.6 88 8.5 7.7 110
Phillips Bench 8200 9.7 11.0 88 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 11.0 105
Somsen Ranch 6800 5.8 4.8 121 11.1 8.2 135
Spring Creek Divide 9000 10.6 10.3 103 12.9 10.5 123
Thumb Divide 7980 8.7 6.4 136 11.5 8.6 134
Togwotee Pass 9580 10.7 11.3 95 12.1 11.6 104
Triple Peak 8500 10.2 8.8 116 13.8 10.9 127
Two Ocean Plateau 9240 16.1 13.7 118 13.9 13.2 105
Willow Creek 8080 11.4 11.2 102 17.7 15.0 118
Younts Peak 8350 6.7 7.0 96 5.1 7.2 71
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Basin Index (%) 103 114
MADISON HEADWATERS IN WYOMING
Black Bear 8170 19.8 16.6 119 -M 18.4 *
Canyon 7870 4.4 -M * 7.3 -M *
Madison Plateau 7750 11.4 10.2 112 14.1 11.8 119
West Yellowstone 6700 5.5 4.6 120 8.9 7.4 120
Whiskey Creek 6800 7.0 6.4 109 10.5 9.6 109
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Basin Index (%) 116 116
YELLOWSTONE HEADWATERS IN WYOMING
Beartooth Lake 9360 7.8 10.4 75 7.3 9.5 77
Canyon 7870 4.4 -M * 7.3 -M *
Evening Star 9200 13.6 13.0 105 13.1 14.5 90
Fisher Creek 9100 15.3 15.8 97 16.5 16.2 102
Monument Peak 8850 8.3 9.1 91 11.0 10.9 101
Northeast Entrance 7350 2.2 4.2 52 6.1 6.6 92
Parker Peak 9400 9.8 10.7 92 10.0 10.2 98
Sylvan Lake 8420 7.9 9.0 88 12.3 12.0 102
Thumb Divide 7980 8.7 6.4 136 11.5 8.6 134
Two Ocean Plateau 9240 16.1 13.7 118 13.9 13.2 105
White Mill 8700 10.0 10.8 93 10.3 11.4 90
Wolverine 7650 5.1 5.4 94 6.2 6.3 98
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Basin Index (%) 97 99
WIND RIVER
Burroughs Creek 8750 4.0 -M * 6.6 -M *
Castle Creek 8400 1.4 3.3 42 2.7 4.4 61
Cold Springs 9630 5.4 3.8 142 7.5 5.0 150
Deer Park 9700 6.2 6.0 103 9.0 8.4 107
Hobbs Park 10100 8.4 6.4 131 9.5 6.2 153
Kirwin 9550 6.2 5.6 111 7.2 6.2 116
Little Warm 9370 6.1 4.6 133 8.3 6.1 136
South Pass 9040 5.9 6.0 98 7.6 7.0 109
St. Lawrence Alt 8620 1.0 -M * 5.7 -M *
Togwotee Pass 9580 10.7 11.3 95 12.1 11.6 104
Townsend Creek 8700 4.0 4.2 95 7.0 5.7 123
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Basin Index (%) 106 117
BIGHORN BASIN
Bald Mtn. 9380 7.4 8.8 84 7.5 8.0 94
Bear Trap Meadow 8200 3.0 2.9 103 4.8 4.3 112
Bone Springs Div 9350 7.1 7.6 93 6.9 7.3 95
Grave Springs 8550 2.2 3.4 65 4.8 4.6 104
Kirwin 9550 6.2 5.6 111 7.2 6.2 116
Marquette 8760 1.3 3.4 38 4.1 4.8 85
Middle Powder 7760 2.9 4.4 66 5.1 5.0 102
Owl Creek 8975 3.2 2.7 119 4.0 3.4 118
Powder River Pass 9480 4.8 5.2 92 4.2 6.3 67
Shell Creek 9580 6.5 7.4 88 7.2 6.8 106
Timber Creek 7950 1.1 2.4 46 3.2 4.2 76
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Basin Index (%) 85 97
SHOSHONE RIVER
Blackwater 9780 10.9 11.4 96 11.8 11.0 107
Evening Star 9200 13.6 13.0 105 13.1 14.5 90
Marquette 8760 1.3 3.4 38 4.1 4.8 85
Sylvan Lake 8420 7.9 9.0 88 12.3 12.0 102
Sylvan Road 7120 3.6 5.8 62 8.0 9.2 87
Younts Peak 8350 6.7 7.0 96 5.1 7.2 71
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Basin Index (%) 89 93
POWDER RIVER
Bear Trap Meadow 8200 3.0 2.9 103 4.8 4.3 112
Cloud Peak Reservoir 9860 6.6 6.5 102 8.0 6.5 123
Grave Springs 8550 2.2 3.4 65 4.8 4.6 104
Hansen Sawmill 8360 3.4 3.1 110 5.6 4.2 133
Middle Powder 7760 2.9 4.4 66 5.1 5.0 102
Powder River Pass 9480 4.8 5.2 92 4.2 6.3 67
Soldier Park 8720 .3 2.5 12 5.3 4.6 115
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Basin Index (%) 83 106
TONGUE RIVER
Big Goose 7990 2.7 3.6 75 6.7 5.1 131
Bone Springs Div 9350 7.1 7.6 93 6.9 7.3 95
Burgess Junction 7880 3.8 4.8 79 6.3 5.8 109
Dome Lake 8880 4.4 4.9 90 7.2 6.0 120
Little Goose 8870 3.6 4.6 78 7.4 5.8 128
Sucker Creek 8880 5.1 5.3 96 7.4 6.2 119
Tie Creek 6870 .9 2.1 43 6.0 5.3 113
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Basin Index (%) 84 115
BELLE FOURCHE
Blind Park 6890 1.8 3.2 56 4.1 5.0 82
Cole Canyon 5910 1.0 2.6 38 5.3 4.2 126
North Rapid Creek 6130 1.7 3.2 53 3.5 3.8 92
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Basin Index (%) 50 99
CHEYENNE RIVER BASIN
Blind Park 6890 1.8 3.2 56 4.1 5.0 82
North Rapid Creek 6130 1.7 3.2 53 3.5 3.8 92
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Basin Index (%) 55 86
UPPER N. PLATTE
Arapaho Ridge 10960 10.2 10.1 101 9.9 10.4 95
Blackhall Mtn 9820 15.5 12.7 122 17.4 13.8 126
Cinnabar Park 9574 9.7 9.2 105 12.4 11.2 111
Columbine 9160 8.9 9.0 99 12.3 10.7 115
Divide Peak 8880 8.1 7.6 107 13.0 10.0 130
Joe Wright 10120 10.0 8.6 116 16.4 11.6 141
Laprele Creek 8375 1.5 3.7 41 4.7 5.4 87
Med Bow 10500 18.3 -M * 17.8 -M *
Never Summer 10280 11.8 8.4 140 8.6 8.2 105
North French Creek 10130 14.6 11.8 124 15.8 12.0 132
Old Battle 10000 16.0 12.6 127 17.6 14.8 119
Rawah 9020 4.8 4.9 98 8.1 7.7 105
Sage Creek Basin 7850 4.4 5.8 76 6.7 6.8 99
Sand Lake 10050 13.9 11.5 121 14.5 11.0 132
South Brush Creek 8440 4.9 4.8 102 7.3 6.2 118
Tower 10500 19.6 16.8 117 21.9 17.5 125
Webber Springs 9250 11.3 9.2 123 14.5 11.8 123
Whiskey Park 8950 14.7 10.0 147 17.6 12.6 140
Willow Creek Pass 9540 7.8 5.8 134 8.0 6.6 121
Zirkel 9340 12.0 10.7 112 18.2 14.0 130
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Basin Index (%) 115 121
SWEETWATER
Deer Park 9700 6.2 6.0 103 9.0 8.4 107
Larsen Creek 9000 -M 2.9 * 6.9 5.8 119
South Pass 9040 5.9 6.0 98 7.6 7.0 109
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Basin Index (%) 101 111
LOWER N. PLATTE
Casper Mtn. 7900 2.7 5.4 50 7.6 6.6 115
Laprele Creek 8375 1.5 3.7 41 4.7 5.4 87
Reno Hill 8400 3.7 5.9 63 7.8 6.6 118
Windy Peak 7900 1.9 3.0 63 5.3 4.7 113
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Basin Index (%) 54 109
LARAMIE RIVER
Brooklyn Lake 10240 10.8 8.6 126 13.4 9.0 149
Cinnabar Park 9574 9.7 9.2 105 12.4 11.2 111
Crow Creek 8330 1.7 3.9 44 5.0 5.5 91
Deadman Hill 10220 10.0 7.8 128 9.5 8.1 117
Rawah 9020 4.8 4.9 98 8.1 7.7 105
Roach 9700 8.3 6.7 124 10.6 9.0 118
Windy Peak 7900 1.9 3.0 63 5.3 4.7 113
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Basin Index (%) 107 116
S. PLATTE
Crow Creek 8330 1.7 3.9 44 5.0 5.5 91
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Basin Index (%) 44 91
LITTLE SNAKE RIVER
Battle Mountain 7440 4.3 4.3 100 9.4 7.0 134
Divide Peak 8880 8.1 7.6 107 13.0 10.0 130
Elk River 8700 9.8 6.9 142 14.1 8.6 164
Elkhead Divide 8780 9.8 -M * -M -M *
Little Snake River 8915 11.3 10.5 108 18.8 15.5 121
Old Battle 10000 16.0 12.6 127 17.6 14.8 119
Sage Creek Basin 7850 4.4 5.8 76 6.7 6.8 99
Sandstone RS 8150 6.2 5.0 124 9.6 8.0 120
Whiskey Park 8950 14.7 10.0 147 17.6 12.6 140
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Basin Index (%) 119 128
UPPER GREEN RIVER
Big Sandy Opening 9080 4.6 6.1 75 6.8 6.1 111
Blind Bull Sum 8650 9.9 9.6 103 8.7 8.5 102
East Rim Divide 7930 -M 4.6 * -M 5.4 *
Elkhart Park G.S. 9400 3.8 5.8 66 5.0 6.4 78
Gros Ventre Summit 8750 6.1 6.3 97 7.0 6.3 111
Gunsight Pass 9820 6.8 6.0 113 7.8 6.8 115
Indian Creek 9425 11.6 10.0 116 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 * 6.9 5.8 119
Loomis Park 8240 5.8 6.6 88 8.5 7.7 110
New Fork Lake 8340 3.7 4.8 77 4.6 5.3 87
Pocket Creek 9360 -M -M * -M -M *
Snider Basin 8060 4.4 5.1 86 9.5 6.5 146
Spring Creek Divide 9000 10.6 10.3 103 12.9 10.5 123
Triple Peak 8500 10.2 8.8 116 13.8 10.9 127
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Basin Index (%) 97 115
LOWER GREEN RIVER
Blacks Fork Jct 8869 4.2 3.4 124 7.5 5.8 129
Buck Pasture 9632 6.8 -M * 10.8 -M *
EF Blacks Fork GS 9360 5.0 4.0 125 7.0 5.2 135
Hams Fork 7840 4.0 4.6 87 7.4 5.2 142
Henrys Fork 10182 -M -M * 8.6 -M *
Hewinta 9500 4.6 4.0 115 9.0 6.6 136
Hickerson Park 9122 3.0 3.0 100 5.4 4.9 110
Hole-in-Rock 9168 2.7 3.0 90 5.8 5.0 116
Indian Creek 9425 11.6 10.0 116 11.8 9.3 127
Kelley R.S. 8180 5.1 6.2 82 10.4 8.0 130
Spirit Lk 10235 6.7 5.2 129 9.6 7.9 122
Steel Creek Park 10158 8.2 6.2 132 10.6 7.4 143
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Basin Index (%) 111 129
UPPER BEAR RIVER
Bear River RS 8777 4.8 3.8 126 8.6 5.6 154
Bug Lake 7987 8.2 6.5 126 11.8 8.1 146
Burts Miller Ranch 8000 3.1 2.3 135 4.3 3.7 116
Chalk Creek #1 9171 11.1 9.2 121 14.1 10.3 137
Giveout 6930 3.7 3.4 109 7.9 5.8 136
Hayden Fork 9130 8.4 5.6 150 13.6 9.2 148
Kelley R.S. 8180 5.1 6.2 82 10.4 8.0 130
Lily Lake 9133 5.4 5.0 108 10.4 7.2 144
Monte Cristo 8932 12.2 9.8 124 16.3 11.4 143
Salt River Summit 7640 5.6 5.0 112 9.8 7.2 136
Spring Creek Divide 9000 10.6 10.3 103 12.9 10.5 123
Trial Lake 9992 12.3 8.4 146 12.4 9.9 125
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Basin Index (%) 120 137
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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.
