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 22 , 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 13.7 107 11.0 11.1 99
Cottonwood Creek 7670 12.2 11.6 105 18.2 14.0 130
East Rim Divide 7930 6.4 6.4 100 8.3 6.8 122
Grand Targhee 9260 22.6 24.2 93 20.1 19.4 104
Granite Creek 6770 8.6 9.4 91 -M 12.0 *
Grassy Lake 7265 16.0 17.4 92 23.2 21.2 109
Gros Ventre Summit 8750 7.5 7.6 99 8.1 7.4 109
Gunsight Pass 9820 8.9 7.6 117 9.6 8.3 116
Lewis Lake Divide 7850 18.3 17.4 105 24.7 20.8 119
Loomis Park 8240 8.6 8.6 100 11.4 9.9 115
Phillips Bench 8200 13.7 14.8 93 17.2 16.1 107
Salt River Summit 7640 8.2 7.0 117 12.4 8.9 139
Snake River Station 6920 8.7 9.8 89 14.3 13.8 104
Somsen Ranch 6800 8.6 7.4 116 13.6 10.0 136
Spring Creek Divide 9000 14.8 13.4 110 16.9 13.6 124
Thumb Divide 7980 10.6 9.0 118 13.2 10.6 125
Togwotee Pass 9580 13.8 13.2 105 15.2 14.3 106
Triple Peak 8500 15.0 12.8 117 18.6 14.6 127
Two Ocean Plateau 9240 19.5 17.4 112 17.2 15.6 110
Willow Creek 8080 16.7 15.4 108 22.5 18.8 120
Younts Peak 8350 9.8 8.7 113 6.9 8.8 78
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Basin Index (%) 104 114
MADISON HEADWATERS IN WYOMING
Black Bear 8170 22.6 21.6 105 -M 22.1 *
Canyon 7870 6.3 -M * 9.0 -M *
Madison Plateau 7750 12.9 12.7 102 15.7 14.8 106
West Yellowstone 6700 6.6 6.4 103 10.0 8.5 118
Whiskey Creek 6800 8.5 8.6 99 -M 11.7 *
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Basin Index (%) 103 110
YELLOWSTONE HEADWATERS IN WYOMING
Beartooth Lake 9360 10.5 13.3 79 10.1 12.0 84
Canyon 7870 6.3 -M * 9.0 -M *
Evening Star 9200 17.1 16.0 107 16.8 17.2 98
Fisher Creek 9100 19.4 19.8 98 20.7 18.9 110
Monument Peak 8850 11.0 12.4 89 13.7 13.5 101
Northeast Entrance 7350 3.7 5.7 65 7.5 7.8 96
Parker Peak 9400 12.4 12.4 100 12.5 12.2 102
Sylvan Lake 8420 10.3 11.4 90 14.9 13.9 107
Thumb Divide 7980 10.6 9.0 118 13.2 10.6 125
Two Ocean Plateau 9240 19.5 17.4 112 17.2 15.6 110
White Mill 8700 12.4 14.2 87 12.7 14.0 91
Wolverine 7650 7.6 7.0 109 8.0 7.8 103
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Basin Index (%) 97 103
WIND RIVER
Burroughs Creek 8750 5.6 -M * 8.2 -M *
Castle Creek 8400 2.9 4.4 66 4.1 5.6 73
Cold Springs 9630 6.6 4.5 147 8.7 5.8 150
Deer Park 9700 7.5 7.6 99 10.4 9.6 108
Hobbs Park 10100 9.7 7.2 135 10.4 6.8 153
Kirwin 9550 7.6 6.6 115 8.6 7.2 119
Little Warm 9370 7.7 5.8 133 10.0 7.6 132
South Pass 9040 7.3 7.6 96 9.0 8.9 101
St. Lawrence Alt 8620 -M -M * 6.0 -M *
Togwotee Pass 9580 13.8 13.2 105 15.2 14.3 106
Townsend Creek 8700 4.7 4.8 98 7.6 6.4 119
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Basin Index (%) 110 116
BIGHORN BASIN
Bald Mtn. 9380 9.3 10.5 89 9.0 9.4 96
Bear Trap Meadow 8200 3.3 3.6 92 5.4 5.0 108
Bone Springs Div 9350 8.6 9.2 93 7.9 8.6 92
Grave Springs 8550 3.2 4.2 76 5.0 5.2 96
Kirwin 9550 7.6 6.6 115 8.6 7.2 119
Marquette 8760 1.4 3.8 37 4.7 5.4 87
Middle Powder 7760 3.9 5.3 74 5.7 5.8 98
Owl Creek 8975 3.6 3.1 116 4.5 3.7 122
Powder River Pass 9480 5.8 6.2 94 5.1 7.7 66
Shell Creek 9580 8.1 8.6 94 8.5 8.2 104
Timber Creek 7950 1.6 2.7 59 2.7 4.4 61
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Basin Index (%) 88 95
SHOSHONE RIVER
Blackwater 9780 13.5 13.8 98 14.6 13.2 111
Evening Star 9200 17.1 16.0 107 16.8 17.2 98
Marquette 8760 1.4 3.8 37 4.7 5.4 87
Sylvan Lake 8420 10.3 11.4 90 14.9 13.9 107
Sylvan Road 7120 5.3 7.3 73 -M 11.0 *
Younts Peak 8350 9.8 8.7 113 6.9 8.8 78
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Basin Index (%) 94 99
POWDER RIVER
Bear Trap Meadow 8200 3.3 3.6 92 5.4 5.0 108
Cloud Peak Reservoir 9860 7.8 7.8 100 8.8 7.6 116
Grave Springs 8550 3.2 4.2 76 5.0 5.2 96
Hansen Sawmill 8360 3.7 3.9 95 5.8 4.8 121
Middle Powder 7760 3.9 5.3 74 5.7 5.8 98
Powder River Pass 9480 5.8 6.2 94 5.1 7.7 66
Soldier Park 8720 .5 3.4 15 5.7 5.2 110
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Basin Index (%) 82 100
TONGUE RIVER
Big Goose 7990 3.2 4.3 74 6.6 5.8 114
Bone Springs Div 9350 8.6 9.2 93 7.9 8.6 92
Burgess Junction 7880 5.0 5.9 85 7.3 7.0 104
Dome Lake 8880 5.5 6.2 89 7.9 7.0 113
Little Goose 8870 4.2 5.2 81 8.0 6.5 123
Sucker Creek 8880 6.3 6.8 93 8.9 7.8 114
Tie Creek 6870 1.6 3.2 50 6.9 6.2 111
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Basin Index (%) 84 109
BELLE FOURCHE
Blind Park 6890 2.2 4.2 52 4.7 6.0 78
Cole Canyon 5910 1.5 2.9 52 5.6 5.0 112
North Rapid Creek 6130 2.5 3.8 66 3.7 4.6 80
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Basin Index (%) 57 90
CHEYENNE RIVER BASIN
Blind Park 6890 2.2 4.2 52 4.7 6.0 78
North Rapid Creek 6130 2.5 3.8 66 3.7 4.6 80
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Basin Index (%) 59 79
UPPER N. PLATTE
Arapaho Ridge 10960 14.5 12.2 119 14.0 12.6 111
Blackhall Mtn 9820 20.2 16.3 124 21.8 17.1 127
Cinnabar Park 9574 12.6 11.7 108 15.2 14.1 108
Columbine 9160 14.8 12.8 116 17.6 13.8 128
Divide Peak 8880 10.0 11.0 91 14.9 12.6 118
Joe Wright 10120 14.3 10.6 135 20.7 14.5 143
Laprele Creek 8375 3.3 4.9 67 6.5 6.5 100
Med Bow 10500 22.7 -M * 21.3 -M *
Never Summer 10280 14.5 10.6 137 10.8 9.8 110
North French Creek 10130 17.4 15.6 112 18.7 15.4 121
Old Battle 10000 20.3 16.7 122 21.7 19.8 110
Rawah 9020 7.0 6.4 109 9.9 9.4 105
Sage Creek Basin 7850 5.8 7.9 73 7.9 7.7 103
Sand Lake 10050 17.0 14.9 114 17.6 13.2 133
South Brush Creek 8440 6.2 6.3 98 8.7 8.2 106
Tower 10500 28.6 23.2 123 29.1 23.2 125
Webber Springs 9250 14.5 12.0 121 18.1 15.0 121
Whiskey Park 8950 19.0 14.9 128 21.5 17.0 126
Willow Creek Pass 9540 9.4 7.0 134 10.1 7.2 140
Zirkel 9340 17.8 15.6 114 24.3 17.2 141
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Basin Index (%) 116 122
SWEETWATER
Deer Park 9700 7.5 7.6 99 10.4 9.6 108
Larsen Creek 9000 -M 4.8 * 8.4 7.6 111
South Pass 9040 7.3 7.6 96 9.0 8.9 101
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Basin Index (%) 97 107
LOWER N. PLATTE
Casper Mtn. 7900 4.9 6.8 72 10.0 7.8 128
Laprele Creek 8375 3.3 4.9 67 6.5 6.5 100
Reno Hill 8400 6.3 7.3 86 10.1 8.2 123
Windy Peak 7900 3.4 3.9 87 6.8 5.8 117
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Basin Index (%) 78 118
LARAMIE RIVER
Brooklyn Lake 10240 14.2 11.6 122 16.5 12.2 135
Cinnabar Park 9574 12.6 11.7 108 15.2 14.1 108
Crow Creek 8330 2.6 4.6 57 5.6 6.2 90
Deadman Hill 10220 13.2 9.9 133 12.2 9.8 124
Rawah 9020 7.0 6.4 109 9.9 9.4 105
Roach 9700 11.2 9.0 124 13.8 11.0 125
Windy Peak 7900 3.4 3.9 87 6.8 5.8 117
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Basin Index (%) 112 117
S. PLATTE
Crow Creek 8330 2.6 4.6 57 5.6 6.2 90
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Basin Index (%) 57 90
LITTLE SNAKE RIVER
Battle Mountain 7440 6.0 6.4 94 11.0 9.1 121
Divide Peak 8880 10.0 11.0 91 14.9 12.6 118
Elk River 8700 13.0 9.9 131 16.7 11.1 150
Elkhead Divide 8780 12.4 -M * 16.1 -M *
Little Snake River 8915 15.4 14.0 110 23.4 19.3 121
Old Battle 10000 20.3 16.7 122 21.7 19.8 110
Sage Creek Basin 7850 5.8 7.9 73 7.9 7.7 103
Sandstone RS 8150 8.3 7.4 112 11.2 10.6 106
Whiskey Park 8950 19.0 14.9 128 21.5 17.0 126
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Basin Index (%) 111 120
UPPER GREEN RIVER
Big Sandy Opening 9080 6.4 7.2 89 8.4 7.6 111
Blind Bull Sum 8650 14.6 13.7 107 11.0 11.1 99
East Rim Divide 7930 6.4 6.4 100 8.3 6.8 122
Elkhart Park G.S. 9400 5.6 7.2 78 6.6 7.6 87
Gros Ventre Summit 8750 7.5 7.6 99 8.1 7.4 109
Gunsight Pass 9820 8.9 7.6 117 9.6 8.3 116
Indian Creek 9425 14.6 12.4 118 14.4 11.8 122
Kendall R.S. 7740 6.8 6.8 100 10.5 8.4 125
Larsen Creek 9000 -M 4.8 * 8.4 7.6 111
Loomis Park 8240 8.6 8.6 100 11.4 9.9 115
New Fork Lake 8340 5.7 6.4 89 -M 6.6 *
Pocket Creek 9360 -M -M * -M -M *
Snider Basin 8060 6.9 7.5 92 12.0 8.0 150
Spring Creek Divide 9000 14.8 13.4 110 16.9 13.6 124
Triple Peak 8500 15.0 12.8 117 18.6 14.6 127
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Basin Index (%) 104 118
LOWER GREEN RIVER
Blacks Fork Jct 8869 5.7 4.7 121 8.7 7.0 124
Buck Pasture 9632 8.7 -M * 12.3 -M *
EF Blacks Fork GS 9360 6.6 5.6 118 -M 6.1 *
Hams Fork 7840 6.7 6.4 105 9.1 6.4 142
Henrys Fork 10182 -M -M * 8.8 -M *
Hewinta 9500 5.7 5.1 112 10.4 7.9 132
Hickerson Park 9122 3.2 3.6 89 5.6 5.7 98
Hole-in-Rock 9168 3.3 3.8 87 6.2 6.0 103
Indian Creek 9425 14.6 12.4 118 14.4 11.8 122
Kelley R.S. 8180 7.7 7.8 99 12.9 9.9 130
Spirit Lk 10235 7.5 6.3 119 10.2 9.2 111
Steel Creek Park 10158 9.6 7.9 122 12.3 9.0 137
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Basin Index (%) 111 123
UPPER BEAR RIVER
Bear River RS 8777 5.9 5.2 113 9.7 6.7 145
Bug Lake 7987 10.2 8.8 116 14.6 10.2 143
Burts Miller Ranch 8000 3.9 3.3 118 5.0 4.9 102
Chalk Creek #1 9171 12.4 11.3 110 16.6 12.8 130
Giveout 6930 5.4 5.3 102 9.7 7.2 135
Hayden Fork 9130 9.7 7.6 128 16.1 11.3 142
Kelley R.S. 8180 7.7 7.8 99 12.9 9.9 130
Lily Lake 9133 6.7 6.6 102 11.4 8.8 130
Monte Cristo 8932 15.9 13.6 117 20.0 14.2 141
Salt River Summit 7640 8.2 7.0 117 12.4 8.9 139
Spring Creek Divide 9000 14.8 13.4 110 16.9 13.6 124
Trial Lake 9992 14.2 11.0 129 17.6 12.6 140
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Basin Index (%) 114 135
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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.
