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 9 , 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 10.4 12.6 83 13.3 14.7 90
Blind Bull Sum 8650 14.7 16.0 92 11.3 12.8 88
Cottonwood Creek 7670 12.7 14.2 89 18.5 16.6 111
East Rim Divide 7930 6.6 7.2 92 8.4 7.8 108
Grand Targhee 9260 22.3 29.6 75 20.6 22.2 93
Granite Creek 6770 8.6 11.8 73 11.3 13.1 86
Grassy Lake 7265 16.3 21.6 75 23.6 24.2 98
Gros Ventre Summit 8750 7.8 8.2 95 8.5 8.2 104
Gunsight Pass 9820 9.2 8.8 105 10.0 9.5 105
Lewis Lake Divide 7850 18.4 20.0 92 25.1 22.4 112
Loomis Park 8240 8.8 10.6 83 11.7 11.1 105
Phillips Bench 8200 14.1 16.8 84 17.5 18.4 95
Salt River Summit 7640 8.2 8.4 98 12.5 10.7 117
Snake River Station 6920 9.1 12.2 75 14.6 15.8 92
Somsen Ranch 6800 9.0 9.0 100 13.9 11.6 120
Spring Creek Divide 9000 14.9 15.8 94 17.3 15.8 109
Thumb Divide 7980 10.8 10.2 106 13.5 11.8 114
Togwotee Pass 9580 14.4 15.0 96 15.7 16.6 95
Triple Peak 8500 15.0 15.4 97 18.9 16.4 115
Two Ocean Plateau 9240 19.8 20.5 97 17.8 17.6 101
Willow Creek 8080 16.2 18.6 87 22.8 22.1 103
Younts Peak 8350 10.6 9.6 110 8.1 10.1 80
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Basin Index (%) 89 102
MADISON HEADWATERS IN WYOMING
Black Bear 8170 23.3 24.4 95 -M 24.0 *
Canyon 7870 6.7 -M * 9.5 -M *
Madison Plateau 7750 -M 14.4 * -M 15.8 *
West Yellowstone 6700 6.8 7.4 92 10.1 9.8 103
Whiskey Creek 6800 8.7 9.9 88 -M 12.7 *
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Basin Index (%) 93 103*
YELLOWSTONE HEADWATERS IN WYOMING
Beartooth Lake 9360 11.4 15.6 73 11.0 14.5 76
Canyon 7870 6.7 -M * 9.5 -M *
Evening Star 9200 18.2 18.3 99 18.1 19.8 91
Fisher Creek 9100 20.6 22.4 92 22.1 22.0 100
Monument Peak 8850 12.2 13.8 88 15.1 15.2 99
Northeast Entrance 7350 4.3 6.8 63 8.1 9.0 90
Parker Peak 9400 13.5 14.6 92 13.5 14.0 96
Sylvan Lake 8420 11.0 13.2 83 15.6 16.0 98
Thumb Divide 7980 10.8 10.2 106 13.5 11.8 114
Two Ocean Plateau 9240 19.8 20.5 97 17.8 17.6 101
White Mill 8700 13.3 16.6 80 13.6 15.6 87
Wolverine 7650 8.3 8.6 97 8.5 8.8 97
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Basin Index (%) 89 95
WIND RIVER
Burroughs Creek 8750 6.0 -M * 9.1 -M *
Castle Creek 8400 3.1 5.0 62 4.3 6.2 69
Cold Springs 9630 6.9 5.2 133 9.1 6.3 144
Deer Park 9700 8.0 9.0 89 11.3 10.7 106
Hobbs Park 10100 10.8 8.8 123 11.4 7.8 146
Kirwin 9550 8.0 7.1 113 9.3 8.0 116
Little Warm 9370 8.0 6.8 118 10.4 7.8 133
South Pass 9040 8.0 8.6 93 9.8 9.6 102
St. Lawrence Alt 8620 1.2 -M * 6.4 -M *
Togwotee Pass 9580 14.4 15.0 96 15.7 16.6 95
Townsend Creek 8700 5.8 5.8 100 8.6 7.2 119
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Basin Index (%) 102 112
BIGHORN BASIN
Bald Mtn. 9380 10.8 11.8 92 10.1 10.4 97
Bear Trap Meadow 8200 3.6 4.1 88 5.8 5.4 107
Bone Springs Div 9350 10.2 10.6 96 9.0 9.6 94
Grave Springs 8550 3.9 5.1 76 5.8 6.0 97
Kirwin 9550 8.0 7.1 113 9.3 8.0 116
Marquette 8760 1.9 4.5 42 5.2 6.2 84
Middle Powder 7760 4.5 6.2 73 6.1 6.2 98
Owl Creek 8975 3.8 3.7 103 4.8 4.0 120
Powder River Pass 9480 6.1 7.2 85 5.6 8.5 66
Shell Creek 9580 9.0 9.6 94 9.1 9.0 101
Timber Creek 7950 1.9 3.2 59 4.2 5.1 82
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Basin Index (%) 87 96
SHOSHONE RIVER
Blackwater 9780 14.1 15.6 90 15.4 15.0 103
Evening Star 9200 18.2 18.3 99 18.1 19.8 91
Marquette 8760 1.9 4.5 42 5.2 6.2 84
Sylvan Lake 8420 11.0 13.2 83 15.6 16.0 98
Sylvan Road 7120 5.7 8.6 66 -M 12.4 *
Younts Peak 8350 10.6 9.6 110 8.1 10.1 80
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Basin Index (%) 88 93
POWDER RIVER
Bear Trap Meadow 8200 3.6 4.1 88 5.8 5.4 107
Cloud Peak Reservoir 9860 8.7 9.1 96 9.6 8.6 112
Grave Springs 8550 3.9 5.1 76 5.8 6.0 97
Hansen Sawmill 8360 4.0 4.4 91 6.4 5.4 119
Middle Powder 7760 4.5 6.2 73 6.1 6.2 98
Powder River Pass 9480 6.1 7.2 85 5.6 8.5 66
Soldier Park 8720 1.2 4.4 27 6.3 6.2 102
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Basin Index (%) 79 98
TONGUE RIVER
Big Goose 7990 3.9 5.2 75 7.6 6.6 115
Bone Springs Div 9350 10.2 10.6 96 9.0 9.6 94
Burgess Junction 7880 6.5 7.0 93 8.8 7.9 111
Dome Lake 8880 6.3 7.1 89 8.9 8.1 110
Little Goose 8870 5.0 6.6 76 8.8 7.7 114
Sucker Creek 8880 7.6 7.9 96 10.4 8.6 121
Tie Creek 6870 2.6 3.6 72 8.1 7.3 111
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Basin Index (%) 88 110
BELLE FOURCHE
Blind Park 6890 2.8 5.2 54 5.5 6.7 82
Cole Canyon 5910 2.3 3.7 62 6.1 5.6 109
North Rapid Creek 6130 3.3 4.9 67 4.1 5.5 75
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Basin Index (%) 61 88
CHEYENNE RIVER BASIN
Blind Park 6890 2.8 5.2 54 5.5 6.7 82
North Rapid Creek 6130 3.3 4.9 67 4.1 5.5 75
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Basin Index (%) 60 79
UPPER N. PLATTE
Arapaho Ridge 10960 15.1 15.2 99 14.6 15.3 95
Blackhall Mtn 9820 20.9 19.6 107 22.3 20.0 112
Cinnabar Park 9574 13.4 13.8 97 15.8 16.4 96
Columbine 9160 14.1 15.5 91 17.8 16.4 109
Divide Peak 8880 10.6 13.2 80 15.3 14.6 105
Joe Wright 10120 15.1 12.9 117 21.4 16.8 127
Laprele Creek 8375 3.9 5.6 70 7.1 7.4 96
Med Bow 10500 23.1 -M * 21.9 -M *
Never Summer 10280 15.1 13.1 115 11.4 11.2 102
North French Creek 10130 17.5 18.0 97 19.0 17.6 108
Old Battle 10000 20.5 20.4 100 22.2 23.3 95
Rawah 9020 7.5 7.8 96 10.3 10.9 94
Sage Creek Basin 7850 6.3 9.5 66 8.0 9.2 87
Sand Lake 10050 17.8 17.2 103 18.4 16.0 115
South Brush Creek 8440 6.4 7.7 83 8.9 9.0 99
Tower 10500 28.0 27.4 102 29.3 26.6 110
Webber Springs 9250 15.1 13.9 109 18.5 17.2 108
Whiskey Park 8950 18.0 17.4 103 21.8 18.2 120
Willow Creek Pass 9540 10.0 8.6 116 10.7 8.8 122
Zirkel 9340 18.0 19.6 92 24.7 21.4 115
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Basin Index (%) 99 107
SWEETWATER
Deer Park 9700 8.0 9.0 89 11.3 10.7 106
Larsen Creek 9000 -M 7.0 * 8.5 8.8 97
South Pass 9040 8.0 8.6 93 9.8 9.6 102
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Basin Index (%) 91 102
LOWER N. PLATTE
Casper Mtn. 7900 5.7 8.1 70 10.9 8.8 124
Laprele Creek 8375 3.9 5.6 70 7.1 7.4 96
Reno Hill 8400 7.3 8.4 87 11.0 8.8 125
Windy Peak 7900 4.1 4.8 85 7.3 6.6 111
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Basin Index (%) 78 115
LARAMIE RIVER
Brooklyn Lake 10240 14.8 14.2 104 17.0 14.1 121
Cinnabar Park 9574 13.4 13.8 97 15.8 16.4 96
Crow Creek 8330 3.3 5.5 60 6.5 6.9 94
Deadman Hill 10220 14.2 11.4 125 13.0 11.6 112
Rawah 9020 7.5 7.8 96 10.3 10.9 94
Roach 9700 11.7 10.4 112 14.1 12.4 114
Windy Peak 7900 4.1 4.8 85 7.3 6.6 111
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Basin Index (%) 102 106
S. PLATTE
Crow Creek 8330 3.3 5.5 60 6.5 6.9 94
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Basin Index (%) 60 94
LITTLE SNAKE RIVER
Battle Mountain 7440 6.2 7.8 79 11.2 10.6 106
Divide Peak 8880 10.6 13.2 80 15.3 14.6 105
Elk River 8700 12.5 11.8 106 16.9 12.8 132
Elkhead Divide 8780 12.4 -M * 16.3 -M *
Little Snake River 8915 15.3 17.0 90 23.7 23.1 103
Old Battle 10000 20.5 20.4 100 22.2 23.3 95
Sage Creek Basin 7850 6.3 9.5 66 8.0 9.2 87
Sandstone RS 8150 8.1 9.0 90 11.4 12.0 95
Whiskey Park 8950 18.0 17.4 103 21.8 18.2 120
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Basin Index (%) 92 105
UPPER GREEN RIVER
Big Sandy Opening 9080 6.7 8.8 76 8.6 8.3 104
Blind Bull Sum 8650 14.7 16.0 92 11.3 12.8 88
East Rim Divide 7930 6.6 7.2 92 8.4 7.8 108
Elkhart Park G.S. 9400 5.9 8.2 72 6.8 8.8 77
Gros Ventre Summit 8750 7.8 8.2 95 8.5 8.2 104
Gunsight Pass 9820 9.2 8.8 105 10.0 9.5 105
Indian Creek 9425 14.7 15.2 97 14.7 13.8 107
Kendall R.S. 7740 7.1 8.1 88 10.7 9.0 119
Larsen Creek 9000 -M 7.0 * 8.5 8.8 97
Loomis Park 8240 8.8 10.6 83 11.7 11.1 105
New Fork Lake 8340 5.9 7.0 84 7.3 7.1 103
Pocket Creek 9360 -M -M * -M -M *
Snider Basin 8060 7.3 8.8 83 12.5 9.4 133
Spring Creek Divide 9000 14.9 15.8 94 17.3 15.8 109
Triple Peak 8500 15.0 15.4 97 18.9 16.4 115
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Basin Index (%) 90 106
LOWER GREEN RIVER
Blacks Fork Jct 8869 5.9 5.4 109 9.0 8.4 107
Buck Pasture 9632 8.8 -M * 12.2 -M *
EF Blacks Fork GS 9360 6.1 7.2 85 -M 7.0 *
Hams Fork 7840 6.9 7.8 88 9.2 7.6 121
Henrys Fork 10182 -M -M * 8.7 -M *
Hewinta 9500 5.9 5.9 100 10.8 9.0 120
Hickerson Park 9122 3.9 4.4 89 6.1 6.8 90
Hole-in-Rock 9168 3.8 4.5 84 6.7 6.7 100
Indian Creek 9425 14.7 15.2 97 14.7 13.8 107
Kelley R.S. 8180 8.0 9.7 82 13.2 11.6 114
Spirit Lk 10235 8.2 7.2 114 11.2 10.8 104
Steel Creek Park 10158 10.1 9.4 107 12.7 10.0 127
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Basin Index (%) 96 111
UPPER BEAR RIVER
Bear River RS 8777 6.2 6.2 100 10.0 7.8 128
Bug Lake 7987 10.6 12.6 84 14.7 12.8 115
Burts Miller Ranch 8000 4.0 4.5 89 5.3 5.2 102
Chalk Creek #1 9171 12.4 13.6 91 16.4 15.4 106
Giveout 6930 5.7 6.2 92 9.9 8.6 115
Hayden Fork 9130 9.8 9.1 108 16.2 13.0 125
Kelley R.S. 8180 8.0 9.7 82 13.2 11.6 114
Lily Lake 9133 7.1 8.1 88 11.7 10.4 112
Monte Cristo 8932 16.0 17.0 94 20.3 17.3 117
Salt River Summit 7640 8.2 8.4 98 12.5 10.7 117
Spring Creek Divide 9000 14.9 15.8 94 17.3 15.8 109
Trial Lake 9992 13.3 13.8 96 17.3 15.0 115
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Basin Index (%) 93 115
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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.
