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 TUESDAY: JANUARY 18 , 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 9.8 9.8 100 12.6 12.4 102
Blind Bull Sum 8650 14.5 12.6 115 11.2 10.7 105
Cottonwood Creek 7670 11.8 11.0 107 17.7 13.2 134
East Rim Divide 7930 -M 5.8 * -M 6.6 *
Grand Targhee 9260 21.8 23.0 95 19.7 18.1 109
Granite Creek 6770 -M 8.8 * -M 11.2 *
Grassy Lake 7265 15.5 16.4 95 22.8 19.5 117
Gros Ventre Summit 8750 7.6 7.2 106 8.1 7.0 116
Gunsight Pass 9820 8.8 7.2 122 9.5 7.9 120
Lewis Lake Divide 7850 18.1 16.0 113 24.5 19.4 126
Loomis Park 8240 8.5 8.2 104 11.3 9.4 120
Phillips Bench 8200 13.3 13.3 100 16.8 15.1 111
Salt River Summit 7640 7.9 6.4 123 12.0 8.5 141
Snake River Station 6920 8.5 9.0 94 14.0 13.5 104
Somsen Ranch 6800 8.5 6.8 125 13.5 9.4 144
Spring Creek Divide 9000 14.6 13.0 112 16.7 12.6 133
Thumb Divide 7980 10.5 8.0 131 13.2 9.5 139
Togwotee Pass 9580 13.5 12.9 105 14.9 13.6 110
Triple Peak 8500 15.0 11.6 129 18.7 13.6 138
Two Ocean Plateau 9240 19.2 16.8 114 17.0 15.4 110
Willow Creek 8080 16.4 14.6 112 22.1 18.0 123
Younts Peak 8350 10.0 8.2 122 7.5 8.2 91
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Basin Index (%) 109 119
MADISON HEADWATERS IN WYOMING
Black Bear 8170 22.0 21.0 105 -M 21.0 *
Canyon 7870 6.2 -M * 9.1 -M *
Madison Plateau 7750 12.7 12.1 105 15.6 14.0 111
West Yellowstone 6700 6.4 6.1 105 9.6 8.2 117
Whiskey Creek 6800 8.1 7.9 103 10.6 11.3 94
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Basin Index (%) 104 107
YELLOWSTONE HEADWATERS IN WYOMING
Beartooth Lake 9360 10.4 12.8 81 10.1 11.8 86
Canyon 7870 6.2 -M * 9.1 -M *
Evening Star 9200 16.9 15.2 111 16.8 16.6 101
Fisher Creek 9100 19.0 18.8 101 20.3 18.4 110
Monument Peak 8850 10.2 12.1 84 12.9 13.2 98
Northeast Entrance 7350 3.5 5.4 65 7.2 7.6 95
Parker Peak 9400 12.1 12.0 101 12.2 12.0 102
Sylvan Lake 8420 10.0 10.9 92 14.6 13.5 108
Thumb Divide 7980 10.5 8.0 131 13.2 9.5 139
Two Ocean Plateau 9240 19.2 16.8 114 17.0 15.4 110
White Mill 8700 12.1 14.2 85 12.5 13.6 92
Wolverine 7650 7.6 6.7 113 7.9 7.5 105
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Basin Index (%) 99 104
WIND RIVER
Burroughs Creek 8750 5.8 -M * 8.8 -M *
Castle Creek 8400 2.9 3.9 74 4.1 5.2 79
Cold Springs 9630 6.8 4.2 162 8.8 5.6 157
Deer Park 9700 7.5 7.2 104 10.7 9.0 119
Hobbs Park 10100 10.0 7.1 141 10.7 6.7 160
Kirwin 9550 7.7 6.3 122 8.9 7.1 125
Little Warm 9370 7.7 5.6 138 10.1 7.4 136
South Pass 9040 7.2 7.0 103 9.2 8.2 112
St. Lawrence Alt 8620 1.0 -M * 6.1 -M *
Togwotee Pass 9580 13.5 12.9 105 14.9 13.6 110
Townsend Creek 8700 4.8 4.5 107 7.7 6.2 124
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Basin Index (%) 116 123
BIGHORN BASIN
Bald Mtn. 9380 8.5 10.2 83 8.4 9.0 93
Bear Trap Meadow 8200 3.2 3.4 94 5.5 4.8 115
Bone Springs Div 9350 8.4 9.0 93 7.9 8.6 92
Grave Springs 8550 3.1 4.1 76 5.3 5.1 104
Kirwin 9550 7.7 6.3 122 8.9 7.1 125
Marquette 8760 1.6 3.8 42 4.8 5.4 89
Middle Powder 7760 3.7 5.2 71 5.7 5.6 102
Owl Creek 8975 3.5 3.0 117 4.6 3.6 128
Powder River Pass 9480 5.4 6.2 87 5.2 7.4 70
Shell Creek 9580 7.7 8.5 91 8.1 7.9 103
Timber Creek 7950 1.4 2.5 56 3.6 4.4 82
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Basin Index (%) 87 99
SHOSHONE RIVER
Blackwater 9780 13.6 13.4 101 14.9 12.6 118
Evening Star 9200 16.9 15.2 111 16.8 16.6 101
Marquette 8760 1.6 3.8 42 4.8 5.4 89
Sylvan Lake 8420 10.0 10.9 92 14.6 13.5 108
Sylvan Road 7120 5.2 7.0 74 -M 10.6 *
Younts Peak 8350 10.0 8.2 122 7.5 8.2 91
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Basin Index (%) 98 104
POWDER RIVER
Bear Trap Meadow 8200 3.2 3.4 94 5.5 4.8 115
Cloud Peak Reservoir 9860 7.4 7.6 97 8.6 7.5 115
Grave Springs 8550 3.1 4.1 76 5.3 5.1 104
Hansen Sawmill 8360 3.9 3.8 103 6.2 4.8 129
Middle Powder 7760 3.7 5.2 71 5.7 5.6 102
Powder River Pass 9480 5.4 6.2 87 5.2 7.4 70
Soldier Park 8720 .9 3.2 28 5.8 5.0 116
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Basin Index (%) 82 105
TONGUE RIVER
Big Goose 7990 3.2 4.0 80 6.8 5.6 121
Bone Springs Div 9350 8.4 9.0 93 7.9 8.6 92
Burgess Junction 7880 4.7 5.6 84 7.0 6.8 103
Dome Lake 8880 5.3 6.0 88 7.8 7.0 111
Little Goose 8870 4.1 4.8 85 7.8 6.4 122
Sucker Creek 8880 5.9 6.5 91 8.3 7.4 112
Tie Creek 6870 1.4 3.0 47 6.5 5.9 110
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Basin Index (%) 85 109
BELLE FOURCHE
Blind Park 6890 1.9 3.9 49 4.5 5.6 80
Cole Canyon 5910 1.4 2.8 50 5.4 5.0 108
North Rapid Creek 6130 2.4 3.8 63 3.5 4.6 76
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Basin Index (%) 54 88
CHEYENNE RIVER BASIN
Blind Park 6890 1.9 3.9 49 4.5 5.6 80
North Rapid Creek 6130 2.4 3.8 63 3.5 4.6 76
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Basin Index (%) 56 78
UPPER N. PLATTE
Arapaho Ridge 10960 14.4 12.0 120 14.0 12.4 113
Blackhall Mtn 9820 19.9 14.7 135 21.5 16.0 134
Cinnabar Park 9574 12.4 11.6 107 14.9 13.3 112
Columbine 9160 14.7 12.4 119 17.4 13.0 134
Divide Peak 8880 9.9 10.0 99 14.7 12.2 120
Joe Wright 10120 14.1 10.1 140 20.4 14.0 146
Laprele Creek 8375 2.8 4.6 61 6.0 6.2 97
Med Bow 10500 22.1 -M * 20.9 -M *
Never Summer 10280 14.4 10.4 138 10.7 9.6 111
North French Creek 10130 16.8 14.8 114 18.0 15.0 120
Old Battle 10000 20.0 15.8 127 21.5 18.8 114
Rawah 9020 6.9 6.2 111 9.7 9.2 105
Sage Creek Basin 7850 5.5 7.0 79 7.6 7.7 99
Sand Lake 10050 16.8 14.1 119 17.5 12.8 137
South Brush Creek 8440 5.8 6.2 94 8.3 7.8 106
Tower 10500 28.2 21.4 132 28.8 22.0 131
Webber Springs 9250 14.4 11.7 123 18.0 14.6 123
Whiskey Park 8950 18.8 14.2 132 21.2 16.5 128
Willow Creek Pass 9540 9.3 6.8 137 10.0 7.2 139
Zirkel 9340 17.7 15.0 118 24.2 17.0 142
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Basin Index (%) 120 124
SWEETWATER
Deer Park 9700 7.5 7.2 104 10.7 9.0 119
Larsen Creek 9000 -M 4.6 * 8.6 6.8 126
South Pass 9040 7.2 7.0 103 9.2 8.2 112
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Basin Index (%) 104 119
LOWER N. PLATTE
Casper Mtn. 7900 3.5 6.3 56 8.8 7.5 117
Laprele Creek 8375 2.8 4.6 61 6.0 6.2 97
Reno Hill 8400 5.6 6.8 82 9.2 7.9 116
Windy Peak 7900 3.4 3.8 89 6.7 5.6 120
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Basin Index (%) 71 113
LARAMIE RIVER
Brooklyn Lake 10240 14.2 11.1 128 16.3 11.6 141
Cinnabar Park 9574 12.4 11.6 107 14.9 13.3 112
Crow Creek 8330 2.5 4.4 57 5.6 6.0 93
Deadman Hill 10220 13.0 9.4 138 12.0 9.4 128
Rawah 9020 6.9 6.2 111 9.7 9.2 105
Roach 9700 10.9 8.8 124 13.5 10.5 129
Windy Peak 7900 3.4 3.8 89 6.7 5.6 120
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Basin Index (%) 114 120
S. PLATTE
Crow Creek 8330 2.5 4.4 57 5.6 6.0 93
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Basin Index (%) 57 93
LITTLE SNAKE RIVER
Battle Mountain 7440 5.8 6.2 94 10.8 8.6 126
Divide Peak 8880 9.9 10.0 99 14.7 12.2 120
Elk River 8700 12.8 9.3 138 16.4 10.6 155
Elkhead Divide 8780 12.2 -M * 15.8 -M *
Little Snake River 8915 15.0 13.8 109 22.9 19.0 121
Old Battle 10000 20.0 15.8 127 21.5 18.8 114
Sage Creek Basin 7850 5.5 7.0 79 7.6 7.7 99
Sandstone RS 8150 8.0 7.0 114 11.0 10.2 108
Whiskey Park 8950 18.8 14.2 132 21.2 16.5 128
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Basin Index (%) 115 122
UPPER GREEN RIVER
Big Sandy Opening 9080 6.5 7.0 93 8.5 7.2 118
Blind Bull Sum 8650 14.5 12.6 115 11.2 10.7 105
East Rim Divide 7930 -M 5.8 * -M 6.6 *
Elkhart Park G.S. 9400 5.7 6.8 84 6.7 7.2 93
Gros Ventre Summit 8750 7.6 7.2 106 8.1 7.0 116
Gunsight Pass 9820 8.8 7.2 122 9.5 7.9 120
Indian Creek 9425 14.6 12.0 122 14.4 10.8 133
Kendall R.S. 7740 6.9 6.6 105 10.5 7.8 135
Larsen Creek 9000 -M 4.6 * 8.6 6.8 126
Loomis Park 8240 8.5 8.2 104 11.3 9.4 120
New Fork Lake 8340 5.8 6.0 97 6.7 6.3 106
Pocket Creek 9360 -M -M * -M -M *
Snider Basin 8060 7.0 6.9 101 12.1 7.8 155
Spring Creek Divide 9000 14.6 13.0 112 16.7 12.6 133
Triple Peak 8500 15.0 11.6 129 18.7 13.6 138
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Basin Index (%) 110 124
LOWER GREEN RIVER
Blacks Fork Jct 8869 5.7 4.2 136 8.6 6.6 130
Buck Pasture 9632 8.8 -M * 12.2 -M *
EF Blacks Fork GS 9360 6.7 5.0 134 9.5 5.9 161
Hams Fork 7840 6.6 5.6 118 8.9 6.2 144
Henrys Fork 10182 -M -M * 8.3 -M *
Hewinta 9500 5.6 5.0 112 10.4 7.7 135
Hickerson Park 9122 3.2 3.4 94 5.5 5.6 98
Hole-in-Rock 9168 3.3 3.6 92 6.3 5.8 109
Indian Creek 9425 14.6 12.0 122 14.4 10.8 133
Kelley R.S. 8180 7.7 7.2 107 12.8 9.4 136
Spirit Lk 10235 7.4 6.0 123 10.3 8.7 118
Steel Creek Park 10158 9.5 7.2 132 12.1 8.7 139
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Basin Index (%) 119 131
UPPER BEAR RIVER
Bear River RS 8777 5.9 4.7 126 9.7 6.6 147
Bug Lake 7987 10.2 8.1 126 14.4 9.5 152
Burts Miller Ranch 8000 4.0 3.2 125 5.2 4.8 108
Chalk Creek #1 9171 12.6 10.9 116 16.5 12.4 133
Giveout 6930 5.3 4.6 115 9.5 6.6 144
Hayden Fork 9130 10.0 6.9 145 16.0 10.5 152
Kelley R.S. 8180 7.7 7.2 107 12.8 9.4 136
Lily Lake 9133 6.6 6.4 103 11.3 8.6 131
Monte Cristo 8932 15.8 12.6 125 19.8 13.5 147
Salt River Summit 7640 7.9 6.4 123 12.0 8.5 141
Spring Creek Divide 9000 14.6 13.0 112 16.7 12.6 133
Trial Lake 9992 14.2 10.2 139 17.6 11.9 148
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Basin Index (%) 122 141
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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.
