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 MONDAY: FEBRUARY 7 , 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 10.3 12.2 84 13.2 14.4 92
Blind Bull Sum 8650 14.5 15.8 92 11.2 12.2 92
Cottonwood Creek 7670 12.6 14.2 89 18.4 16.3 113
East Rim Divide 7930 6.5 7.0 93 8.4 7.6 111
Grand Targhee 9260 22.3 28.6 78 20.3 22.1 92
Granite Creek 6770 8.6 11.2 77 10.9 12.9 84
Grassy Lake 7265 16.1 21.4 75 23.5 23.8 99
Gros Ventre Summit 8750 7.6 8.2 93 8.5 7.9 108
Gunsight Pass 9820 9.1 8.7 105 9.9 9.2 108
Lewis Lake Divide 7850 18.3 19.6 93 25.1 22.0 114
Loomis Park 8240 8.7 10.2 85 11.6 10.9 106
Phillips Bench 8200 14.0 16.4 85 17.5 18.1 97
Salt River Summit 7640 8.1 8.2 99 12.3 10.3 119
Snake River Station 6920 8.9 11.9 75 14.4 15.7 92
Somsen Ranch 6800 8.9 8.9 100 13.6 11.4 119
Spring Creek Divide 9000 14.9 15.6 96 17.2 15.4 112
Thumb Divide 7980 10.7 9.9 108 13.4 11.6 116
Togwotee Pass 9580 14.4 15.0 96 15.7 16.4 96
Triple Peak 8500 14.8 15.2 97 18.7 16.2 115
Two Ocean Plateau 9240 19.7 19.6 101 17.7 17.0 104
Willow Creek 8080 16.1 18.4 88 22.8 21.6 106
Younts Peak 8350 10.5 9.6 109 7.7 10.0 77
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Basin Index (%) 90 103
MADISON HEADWATERS IN WYOMING
Black Bear 8170 23.3 24.2 96 -M 23.6 *
Canyon 7870 6.5 -M * 9.3 -M *
Madison Plateau 7750 -M 14.2 * -M 15.6 *
West Yellowstone 6700 6.8 7.3 93 10.1 9.7 104
Whiskey Creek 6800 8.6 9.5 91 -M 12.7 *
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Basin Index (%) 94 104*
YELLOWSTONE HEADWATERS IN WYOMING
Beartooth Lake 9360 11.3 15.4 73 10.9 14.0 78
Canyon 7870 6.5 -M * 9.3 -M *
Evening Star 9200 18.1 18.2 99 17.9 19.8 90
Fisher Creek 9100 20.6 22.3 92 21.9 21.8 100
Monument Peak 8850 12.1 13.6 89 15.0 15.0 100
Northeast Entrance 7350 4.2 6.7 63 8.1 8.8 92
Parker Peak 9400 13.4 14.6 92 13.4 13.9 96
Sylvan Lake 8420 11.0 13.0 85 15.4 15.6 99
Thumb Divide 7980 10.7 9.9 108 13.4 11.6 116
Two Ocean Plateau 9240 19.7 19.6 101 17.7 17.0 104
White Mill 8700 13.3 16.5 81 13.5 15.4 88
Wolverine 7650 8.3 8.5 98 8.5 8.6 99
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Basin Index (%) 90 96
WIND RIVER
Burroughs Creek 8750 5.9 -M * 8.7 -M *
Castle Creek 8400 3.0 4.7 64 4.1 6.2 66
Cold Springs 9630 6.9 5.2 133 9.1 6.2 147
Deer Park 9700 8.0 8.4 95 11.1 10.7 104
Hobbs Park 10100 10.6 8.2 129 11.2 7.4 151
Kirwin 9550 7.9 7.1 111 9.1 8.0 114
Little Warm 9370 7.9 6.7 118 10.2 7.8 131
South Pass 9040 8.0 8.3 96 9.7 9.4 103
St. Lawrence Alt 8620 1.0 -M * 6.3 -M *
Togwotee Pass 9580 14.4 15.0 96 15.7 16.4 96
Townsend Creek 8700 5.7 5.6 102 8.5 7.0 121
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Basin Index (%) 105 112
BIGHORN BASIN
Bald Mtn. 9380 10.7 11.7 91 10.0 9.9 101
Bear Trap Meadow 8200 3.6 4.0 90 5.8 5.4 107
Bone Springs Div 9350 10.0 10.5 95 8.9 9.6 93
Grave Springs 8550 3.8 5.0 76 5.7 5.9 97
Kirwin 9550 7.9 7.1 111 9.1 8.0 114
Marquette 8760 1.9 4.3 44 5.2 6.1 85
Middle Powder 7760 4.5 6.2 73 6.0 6.2 97
Owl Creek 8975 3.8 3.6 106 4.6 4.0 115
Powder River Pass 9480 6.2 7.2 86 5.5 8.4 65
Shell Creek 9580 8.9 9.4 95 9.1 8.8 103
Timber Creek 7950 1.9 3.1 61 3.8 5.0 76
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Basin Index (%) 88 95
SHOSHONE RIVER
Blackwater 9780 14.0 15.0 93 15.2 14.8 103
Evening Star 9200 18.1 18.2 99 17.9 19.8 90
Marquette 8760 1.9 4.3 44 5.2 6.1 85
Sylvan Lake 8420 11.0 13.0 85 15.4 15.6 99
Sylvan Road 7120 5.7 8.4 68 -M 12.0 *
Younts Peak 8350 10.5 9.6 109 7.7 10.0 77
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Basin Index (%) 89 93
POWDER RIVER
Bear Trap Meadow 8200 3.6 4.0 90 5.8 5.4 107
Cloud Peak Reservoir 9860 8.7 9.0 97 9.6 8.4 114
Grave Springs 8550 3.8 5.0 76 5.7 5.9 97
Hansen Sawmill 8360 4.0 4.4 91 6.3 5.4 117
Middle Powder 7760 4.5 6.2 73 6.0 6.2 97
Powder River Pass 9480 6.2 7.2 86 5.5 8.4 65
Soldier Park 8720 1.2 4.4 27 6.3 6.1 103
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Basin Index (%) 80 99
TONGUE RIVER
Big Goose 7990 3.9 5.2 75 7.7 6.5 118
Bone Springs Div 9350 10.0 10.5 95 8.9 9.6 93
Burgess Junction 7880 6.4 6.8 94 8.6 7.8 110
Dome Lake 8880 6.2 7.0 89 8.8 8.1 109
Little Goose 8870 5.0 6.4 78 8.8 7.6 116
Sucker Creek 8880 7.6 7.8 97 10.3 8.5 121
Tie Creek 6870 2.5 3.6 69 8.0 7.2 111
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Basin Index (%) 88 110
BELLE FOURCHE
Blind Park 6890 2.9 5.2 56 5.5 6.6 83
Cole Canyon 5910 2.3 3.6 64 6.1 5.6 109
North Rapid Creek 6130 3.3 4.8 69 4.1 5.4 76
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Basin Index (%) 62 89
CHEYENNE RIVER BASIN
Blind Park 6890 2.9 5.2 56 5.5 6.6 83
North Rapid Creek 6130 3.3 4.8 69 4.1 5.4 76
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Basin Index (%) 62 80
UPPER N. PLATTE
Arapaho Ridge 10960 14.9 14.4 103 14.5 14.4 101
Blackhall Mtn 9820 20.7 19.3 107 22.2 19.5 114
Cinnabar Park 9574 13.3 13.7 97 15.8 16.2 98
Columbine 9160 14.0 15.2 92 17.6 16.0 110
Divide Peak 8880 10.4 13.0 80 15.3 14.6 105
Joe Wright 10120 14.9 12.2 122 21.4 16.6 129
Laprele Creek 8375 3.8 5.6 68 7.1 7.2 99
Med Bow 10500 23.1 -M * 21.7 -M *
Never Summer 10280 15.2 12.4 123 11.2 11.2 100
North French Creek 10130 17.4 17.6 99 19.0 17.4 109
Old Battle 10000 20.5 20.3 101 22.0 23.1 95
Rawah 9020 7.4 7.7 96 10.3 10.6 97
Sage Creek Basin 7850 6.2 9.5 65 7.9 8.9 89
Sand Lake 10050 17.6 17.0 104 18.3 15.8 116
South Brush Creek 8440 6.3 7.6 83 8.8 9.0 98
Tower 10500 28.0 26.4 106 29.2 25.9 113
Webber Springs 9250 15.0 13.8 109 18.4 16.8 110
Whiskey Park 8950 17.9 17.4 103 21.7 18.2 119
Willow Creek Pass 9540 9.9 8.4 118 10.5 8.6 122
Zirkel 9340 17.9 19.0 94 24.6 21.4 115
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Basin Index (%) 100 108
SWEETWATER
Deer Park 9700 8.0 8.4 95 11.1 10.7 104
Larsen Creek 9000 -M 6.2 * 8.5 8.0 106
South Pass 9040 8.0 8.3 96 9.7 9.4 103
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Basin Index (%) 96 104
LOWER N. PLATTE
Casper Mtn. 7900 5.7 8.0 71 10.7 8.8 122
Laprele Creek 8375 3.8 5.6 68 7.1 7.2 99
Reno Hill 8400 7.1 8.3 86 10.9 8.7 125
Windy Peak 7900 3.9 4.8 81 7.2 6.5 111
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Basin Index (%) 77 115
LARAMIE RIVER
Brooklyn Lake 10240 14.6 13.8 106 17.0 13.8 123
Cinnabar Park 9574 13.3 13.7 97 15.8 16.2 98
Crow Creek 8330 3.2 5.3 60 6.4 6.6 97
Deadman Hill 10220 13.8 11.3 122 12.9 11.4 113
Rawah 9020 7.4 7.7 96 10.3 10.6 97
Roach 9700 11.6 10.3 113 14.0 12.2 115
Windy Peak 7900 3.9 4.8 81 7.2 6.5 111
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Basin Index (%) 101 108
S. PLATTE
Crow Creek 8330 3.2 5.3 60 6.4 6.6 97
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Basin Index (%) 60 97
LITTLE SNAKE RIVER
Battle Mountain 7440 6.0 7.6 79 11.0 10.5 105
Divide Peak 8880 10.4 13.0 80 15.3 14.6 105
Elk River 8700 12.3 11.8 104 16.8 12.5 134
Elkhead Divide 8780 12.2 -M * -M -M *
Little Snake River 8915 15.2 16.8 90 23.6 22.8 104
Old Battle 10000 20.5 20.3 101 22.0 23.1 95
Sage Creek Basin 7850 6.2 9.5 65 7.9 8.9 89
Sandstone RS 8150 8.0 8.6 93 11.3 11.8 96
Whiskey Park 8950 17.9 17.4 103 21.7 18.2 119
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Basin Index (%) 92 106
UPPER GREEN RIVER
Big Sandy Opening 9080 6.5 8.6 76 8.5 8.1 105
Blind Bull Sum 8650 14.5 15.8 92 11.2 12.2 92
East Rim Divide 7930 6.5 7.0 93 8.4 7.6 111
Elkhart Park G.S. 9400 5.8 8.0 72 6.7 8.5 79
Gros Ventre Summit 8750 7.6 8.2 93 8.5 7.9 108
Gunsight Pass 9820 9.1 8.7 105 9.9 9.2 108
Indian Creek 9425 14.7 14.7 100 14.8 13.2 112
Kendall R.S. 7740 6.9 7.8 88 10.6 9.0 118
Larsen Creek 9000 -M 6.2 * 8.5 8.0 106
Loomis Park 8240 8.7 10.2 85 11.6 10.9 106
New Fork Lake 8340 5.9 6.8 87 6.6 6.8 97
Pocket Creek 9360 -M -M * -M -M *
Snider Basin 8060 7.2 8.4 86 12.4 9.2 135
Spring Creek Divide 9000 14.9 15.6 96 17.2 15.4 112
Triple Peak 8500 14.8 15.2 97 18.7 16.2 115
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Basin Index (%) 91 108
LOWER GREEN RIVER
Blacks Fork Jct 8869 5.9 5.4 109 8.9 8.0 111
Buck Pasture 9632 8.8 -M * 12.3 -M *
EF Blacks Fork GS 9360 6.1 6.9 88 6.6 7.0 94
Hams Fork 7840 6.9 7.4 93 9.3 7.4 126
Henrys Fork 10182 -M -M * 8.9 -M *
Hewinta 9500 5.9 5.7 104 10.7 9.0 119
Hickerson Park 9122 3.8 4.4 86 6.2 6.4 97
Hole-in-Rock 9168 3.7 4.4 84 6.6 6.6 100
Indian Creek 9425 14.7 14.7 100 14.8 13.2 112
Kelley R.S. 8180 7.9 9.4 84 13.0 11.3 115
Spirit Lk 10235 8.1 7.0 116 11.1 10.8 103
Steel Creek Park 10158 10.1 9.1 111 12.6 9.8 129
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Basin Index (%) 98 112
UPPER BEAR RIVER
Bear River RS 8777 6.2 6.2 100 10.0 7.6 132
Bug Lake 7987 10.4 11.6 90 14.7 12.0 122
Burts Miller Ranch 8000 4.0 4.2 95 5.3 5.2 102
Chalk Creek #1 9171 12.4 13.0 95 16.6 15.2 109
Giveout 6930 5.5 6.1 90 9.8 8.4 117
Hayden Fork 9130 9.7 8.8 110 16.3 12.8 127
Kelley R.S. 8180 7.9 9.4 84 13.0 11.3 115
Lily Lake 9133 7.0 7.7 91 11.7 10.0 117
Monte Cristo 8932 16.0 16.0 100 20.4 16.9 121
Salt River Summit 7640 8.1 8.2 99 12.3 10.3 119
Spring Creek Divide 9000 14.9 15.6 96 17.2 15.4 112
Trial Lake 9992 13.4 12.8 105 17.4 14.4 121
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Basin Index (%) 97 118
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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.
