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 WEDNESDAY: FEBRUARY 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 10.1 11.8 86 13.1 13.7 96
Blind Bull Sum 8650 14.4 15.2 95 11.1 11.8 94
Cottonwood Creek 7670 12.4 13.6 91 18.0 15.6 115
East Rim Divide 7930 6.3 7.0 90 8.3 7.5 111
Grand Targhee 9260 22.4 27.4 82 20.1 20.7 97
Granite Creek 6770 8.6 10.4 83 -M 12.6 *
Grassy Lake 7265 16.0 20.5 78 23.3 23.2 100
Gros Ventre Summit 8750 7.4 8.0 92 8.1 7.8 104
Gunsight Pass 9820 8.9 8.6 103 9.7 8.9 109
Lewis Lake Divide 7850 18.4 19.5 94 24.7 21.6 114
Loomis Park 8240 8.6 9.9 87 11.5 10.6 108
Phillips Bench 8200 13.9 16.0 87 17.1 17.2 99
Salt River Summit 7640 8.0 7.7 104 11.9 9.8 121
Snake River Station 6920 8.8 11.4 77 14.2 15.2 93
Somsen Ranch 6800 8.9 8.4 106 13.5 11.0 123
Spring Creek Divide 9000 14.6 15.3 95 16.8 15.0 112
Thumb Divide 7980 10.5 9.8 107 13.2 11.6 114
Togwotee Pass 9580 14.1 14.7 96 15.4 15.9 97
Triple Peak 8500 14.7 14.8 99 -M 16.0 *
Two Ocean Plateau 9240 19.6 19.1 103 17.3 16.4 105
Willow Creek 8080 16.5 17.0 97 22.4 21.0 107
Younts Peak 8350 10.0 9.5 105 6.9 9.6 72
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Basin Index (%) 92 104
MADISON HEADWATERS IN WYOMING
Black Bear 8170 22.9 23.0 100 -M 23.4 *
Canyon 7870 6.4 -M * 9.1 -M *
Madison Plateau 7750 -M 14.0 * -M 15.4 *
West Yellowstone 6700 6.7 7.0 96 9.8 9.2 107
Whiskey Creek 6800 8.4 9.2 91 -M 12.3 *
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Basin Index (%) 97 107*
YELLOWSTONE HEADWATERS IN WYOMING
Beartooth Lake 9360 10.8 14.7 73 10.3 13.0 79
Canyon 7870 6.4 -M * 9.1 -M *
Evening Star 9200 17.7 17.6 101 17.1 19.4 88
Fisher Creek 9100 19.9 21.7 92 21.0 20.5 102
Monument Peak 8850 11.4 13.5 84 14.2 14.4 99
Northeast Entrance 7350 3.9 6.6 59 7.7 8.4 92
Parker Peak 9400 12.7 14.0 91 12.8 13.4 96
Sylvan Lake 8420 10.6 12.6 84 15.1 15.2 99
Thumb Divide 7980 10.5 9.8 107 13.2 11.6 114
Two Ocean Plateau 9240 19.6 19.1 103 17.3 16.4 105
White Mill 8700 12.8 16.0 80 12.9 15.4 84
Wolverine 7650 7.8 8.2 95 8.1 8.4 96
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Basin Index (%) 90 96
WIND RIVER
Burroughs Creek 8750 5.6 -M * 8.1 -M *
Castle Creek 8400 2.8 4.6 61 4.0 6.0 67
Cold Springs 9630 6.6 4.8 138 8.8 6.0 147
Deer Park 9700 7.7 8.0 96 10.6 10.2 104
Hobbs Park 10100 10.3 7.9 130 10.9 7.2 151
Kirwin 9550 7.6 7.0 109 8.4 7.8 108
Little Warm 9370 7.6 6.5 117 9.8 7.8 126
South Pass 9040 7.8 8.2 95 9.3 9.2 101
St. Lawrence Alt 8620 1.0 -M * 6.2 -M *
Togwotee Pass 9580 14.1 14.7 96 15.4 15.9 97
Townsend Creek 8700 5.4 5.3 102 8.3 6.6 126
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Basin Index (%) 104 111
BIGHORN BASIN
Bald Mtn. 9380 9.7 11.2 87 9.3 9.8 95
Bear Trap Meadow 8200 3.2 3.8 84 5.2 5.2 100
Bone Springs Div 9350 9.0 10.3 87 8.2 9.2 89
Grave Springs 8550 3.3 4.7 70 4.8 5.6 86
Kirwin 9550 7.6 7.0 109 8.4 7.8 108
Marquette 8760 1.7 4.2 40 4.9 5.8 84
Middle Powder 7760 4.0 6.1 66 5.6 6.0 93
Owl Creek 8975 3.7 3.3 112 -M 3.9 *
Powder River Pass 9480 5.9 7.0 84 4.9 8.2 60
Shell Creek 9580 8.3 9.2 90 8.6 8.6 100
Timber Creek 7950 1.9 2.8 68 2.9 4.8 60
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Basin Index (%) 84 88
SHOSHONE RIVER
Blackwater 9780 13.7 14.8 93 14.6 14.1 104
Evening Star 9200 17.7 17.6 101 17.1 19.4 88
Marquette 8760 1.7 4.2 40 4.9 5.8 84
Sylvan Lake 8420 10.6 12.6 84 15.1 15.2 99
Sylvan Road 7120 5.5 8.2 67 -M 11.9 *
Younts Peak 8350 10.0 9.5 105 6.9 9.6 72
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Basin Index (%) 88 91
POWDER RIVER
Bear Trap Meadow 8200 3.2 3.8 84 5.2 5.2 100
Cloud Peak Reservoir 9860 8.3 8.8 94 9.2 8.2 112
Grave Springs 8550 3.3 4.7 70 4.8 5.6 86
Hansen Sawmill 8360 3.9 4.2 93 5.8 5.3 109
Middle Powder 7760 4.0 6.1 66 5.6 6.0 93
Powder River Pass 9480 5.9 7.0 84 4.9 8.2 60
Soldier Park 8720 .4 3.7 11 5.8 5.6 104
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Basin Index (%) 76 94
TONGUE RIVER
Big Goose 7990 3.4 4.8 71 6.7 6.0 112
Bone Springs Div 9350 9.0 10.3 87 8.2 9.2 89
Burgess Junction 7880 5.8 6.6 88 8.0 7.6 105
Dome Lake 8880 5.6 6.7 84 8.3 7.8 106
Little Goose 8870 4.6 5.9 78 8.4 7.2 117
Sucker Creek 8880 7.0 7.6 92 9.6 8.4 114
Tie Creek 6870 2.2 3.4 65 7.7 6.8 113
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Basin Index (%) 83 107
BELLE FOURCHE
Blind Park 6890 2.6 4.8 54 5.0 6.6 76
Cole Canyon 5910 1.8 3.2 56 5.3 5.4 98
North Rapid Creek 6130 -M 4.7 * 3.4 5.2 65
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Basin Index (%) 55 80
CHEYENNE RIVER BASIN
Blind Park 6890 2.6 4.8 54 5.0 6.6 76
North Rapid Creek 6130 -M 4.7 * 3.4 5.2 65
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Basin Index (%) 54 71
UPPER N. PLATTE
Arapaho Ridge 10960 14.7 14.0 105 14.1 13.9 101
Blackhall Mtn 9820 20.6 18.1 114 -M 19.0 *
Cinnabar Park 9574 13.0 13.1 99 15.5 15.8 98
Columbine 9160 14.6 14.4 101 17.3 15.2 114
Divide Peak 8880 10.2 12.3 83 15.1 13.9 109
Joe Wright 10120 14.8 11.8 125 21.1 15.4 137
Laprele Creek 8375 3.5 5.4 65 6.8 7.0 97
Med Bow 10500 22.7 -M * 21.3 -M *
Never Summer 10280 14.9 11.6 128 11.1 10.8 103
North French Creek 10130 17.3 16.8 103 18.7 16.8 111
Old Battle 10000 20.3 19.0 107 21.6 22.2 97
Rawah 9020 7.2 6.8 106 10.1 10.0 101
Sage Creek Basin 7850 6.1 9.3 66 7.8 8.8 89
Sand Lake 10050 17.1 16.4 104 17.5 15.0 117
South Brush Creek 8440 6.2 7.2 86 8.6 8.6 100
Tower 10500 28.0 26.2 107 28.9 25.6 113
Webber Springs 9250 14.6 13.4 109 18.0 16.4 110
Whiskey Park 8950 18.6 16.6 112 21.5 18.2 118
Willow Creek Pass 9540 9.8 7.9 124 10.5 8.4 125
Zirkel 9340 17.9 16.8 107 -M 19.4 *
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Basin Index (%) 105 109
SWEETWATER
Deer Park 9700 7.7 8.0 96 10.6 10.2 104
Larsen Creek 9000 -M 5.0 * 8.1 7.8 104
South Pass 9040 7.8 8.2 95 9.3 9.2 101
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Basin Index (%) 96 103
LOWER N. PLATTE
Casper Mtn. 7900 5.5 7.6 72 10.5 8.6 122
Laprele Creek 8375 3.5 5.4 65 6.8 7.0 97
Reno Hill 8400 6.7 8.2 82 10.6 8.6 123
Windy Peak 7900 3.6 4.4 82 7.0 6.4 109
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Basin Index (%) 75 114
LARAMIE RIVER
Brooklyn Lake 10240 14.3 12.6 113 16.7 13.4 125
Cinnabar Park 9574 13.0 13.1 99 15.5 15.8 98
Crow Creek 8330 3.0 5.2 58 6.1 6.5 94
Deadman Hill 10220 13.5 11.0 123 12.6 10.7 118
Rawah 9020 7.2 6.8 106 10.1 10.0 101
Roach 9700 11.4 9.6 119 13.8 11.6 119
Windy Peak 7900 3.6 4.4 82 7.0 6.4 109
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Basin Index (%) 105 110
S. PLATTE
Crow Creek 8330 3.0 5.2 58 6.1 6.5 94
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Basin Index (%) 58 94
LITTLE SNAKE RIVER
Battle Mountain 7440 5.8 7.5 77 10.5 10.2 103
Divide Peak 8880 10.2 12.3 83 15.1 13.9 109
Elk River 8700 12.7 11.3 112 16.7 12.0 139
Elkhead Divide 8780 12.3 -M * -M -M *
Little Snake River 8915 15.1 16.4 92 -M 22.5 *
Old Battle 10000 20.3 19.0 107 21.6 22.2 97
Sage Creek Basin 7850 6.1 9.3 66 7.8 8.8 89
Sandstone RS 8150 8.2 8.2 100 11.1 11.4 97
Whiskey Park 8950 18.6 16.6 112 21.5 18.2 118
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Basin Index (%) 96 108
UPPER GREEN RIVER
Big Sandy Opening 9080 -M 8.1 * 8.2 8.0 102
Blind Bull Sum 8650 14.4 15.2 95 11.1 11.8 94
East Rim Divide 7930 6.3 7.0 90 8.3 7.5 111
Elkhart Park G.S. 9400 5.5 7.8 71 6.3 8.0 79
Gros Ventre Summit 8750 7.4 8.0 92 8.1 7.8 104
Gunsight Pass 9820 8.9 8.6 103 9.7 8.9 109
Indian Creek 9425 14.8 13.9 106 14.5 12.8 113
Kendall R.S. 7740 6.8 7.7 88 10.6 8.8 120
Larsen Creek 9000 -M 5.0 * 8.1 7.8 104
Loomis Park 8240 8.6 9.9 87 11.5 10.6 108
New Fork Lake 8340 5.7 6.8 84 -M 6.8 *
Pocket Creek 9360 -M -M * -M -M *
Snider Basin 8060 7.1 8.2 87 12.2 8.8 139
Spring Creek Divide 9000 14.6 15.3 95 16.8 15.0 112
Triple Peak 8500 14.7 14.8 99 -M 16.0 *
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Basin Index (%) 93 108
LOWER GREEN RIVER
Blacks Fork Jct 8869 5.6 5.0 112 9.0 7.7 117
Buck Pasture 9632 8.7 -M * 12.5 -M *
EF Blacks Fork GS 9360 6.2 6.4 97 -M 6.8 *
Hams Fork 7840 6.7 7.0 96 9.2 7.0 131
Henrys Fork 10182 -M -M * 10.9 -M *
Hewinta 9500 5.8 5.5 105 10.5 8.9 118
Hickerson Park 9122 3.7 4.2 88 6.1 6.4 95
Hole-in-Rock 9168 3.4 4.2 81 6.5 6.4 102
Indian Creek 9425 14.8 13.9 106 14.5 12.8 113
Kelley R.S. 8180 7.5 9.2 82 12.6 11.0 115
Spirit Lk 10235 7.8 6.5 120 11.0 10.5 105
Steel Creek Park 10158 10.0 8.8 114 12.5 9.7 129
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Basin Index (%) 101 114
UPPER BEAR RIVER
Bear River RS 8777 6.1 5.4 113 9.9 7.4 134
Bug Lake 7987 10.2 10.5 97 14.5 11.7 124
Burts Miller Ranch 8000 4.0 4.0 100 5.1 5.1 100
Chalk Creek #1 9171 12.2 12.4 98 16.3 15.2 107
Giveout 6930 5.4 6.0 90 9.8 7.6 129
Hayden Fork 9130 9.8 8.4 117 16.4 12.6 130
Kelley R.S. 8180 7.5 9.2 82 12.6 11.0 115
Lily Lake 9133 6.9 7.4 93 11.8 9.7 122
Monte Cristo 8932 15.9 14.6 109 21.2 16.0 132
Salt River Summit 7640 8.0 7.7 104 11.9 9.8 121
Spring Creek Divide 9000 14.6 15.3 95 16.8 15.0 112
Trial Lake 9992 13.9 12.8 109 18.3 14.0 131
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Basin Index (%) 101 122
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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.
