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 10 , 2017
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BASIN ELEV. SNOW WATER EQUIVALENT TOTAL PRECIPITATION
Data Site Name (Ft) % %
Current Median Median Current Average Avg
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WYOMING
SNAKE RIVER
Base Camp 7030 12.9 8.5 152 20.5 11.4 180
Black Bear 8170 18.8 19.6 96 27.9 20.2 138
Blind Bull Sum 8650 18.2 11.1 164 16.1 10.5 153
Cottonwood Creek 7670 13.2 9.3 142 19.5 12.9 151
East Rim Divide 7930 9.2 5.1 180 11.6 6.3 184
Grand Targhee 9260 25.3 20.4 124 23.6 17.3 136
Granite Creek 6770 13.2 7.5 176 19.3 10.8 179
Grassy Lake 7265 18.6 15.2 122 30.2 19.4 156
Gros Ventre Summit 8750 8.2 7.0 117 12.4 6.7 185
Gunsight Pass 9820 8.9 7.0 127 13.0 7.3 178
Lewis Lake Divide 7850 15.9 15.2 105 27.0 19.1 141
Phillips Bench 8200 15.1 13.0 116 24.3 14.8 164
Salt River Summit 7760 8.9 5.6 159 14.6 8.6 170
Snake River Station 6920 12.1 8.0 151 21.0 12.5 168
Spring Creek Divide 9000 16.7 11.1 150 21.0 12.5 168
Thumb Divide 7980 8.5 7.3 116 14.2 10.0 142
Togwotee Pass 9580 16.0 12.4 129 19.7 13.0 152
Two Ocean Plateau 9240 20.5 14.4 142 21.4 14.2 151
Willow Creek 8380 16.0 12.7 126 26.7 17.6 152
Younts Peak 8350 10.1 7.6 133 14.6 8.7 168
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Basin Index (%) 131 157
MADISON-GALLATIN
Black Bear 8170 18.8 19.6 96 27.9 20.2 138
Canyon 7870 8.2 6.5 126 14.2 8.8 161
Madison Plateau 7750 11.1 11.2 99 20.5 14.2 144
West Yellowstone 6700 6.7 5.6 120 14.0 8.0 175
Whiskey Creek 6800 7.3 7.9 92 14.9 11.0 135
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Basin Index (%) 103 147
YELLOWSTONE
Beartooth Lake 9360 13.8 11.3 122 10.3 10.4 99
Burnt Mtn 5880 4.2 1.9 221 8.1 7.1 114
Canyon 7870 8.2 6.5 126 14.2 8.8 161
Cole Creek 7850 5.8 6.7 87 5.1 6.7 76
Evening Star 9200 16.0 13.1 122 22.2 14.9 149
Fisher Creek 9100 16.3 17.0 96 21.5 17.0 126
Northeast Entrance 7350 5.5 4.9 112 10.9 6.9 158
Parker Peak 9400 14.3 11.1 129 17.0 9.5 179
Sylvan Lake 8420 10.9 10.6 103 21.4 12.4 173
Thumb Divide 7980 8.5 7.3 116 14.2 10.0 142
Two Ocean Plateau 9240 20.5 14.4 142 21.4 14.2 151
White Mill 8700 13.3 11.6 115 16.7 12.7 131
Wolverine 7650 8.1 5.5 147 11.4 6.9 165
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Basin Index (%) 119 141
WIND RIVER
Burroughs Creek 8750 10.4 -M * 12.9 -M *
Castle Creek 8400 5.8 -M * 7.9 -M *
Cold Springs 9630 5.3 3.6 147 7.5 5.4 139
Deer Park 9700 -M 7.0 * -M 10.1 *
Hobbs Park 10100 10.5 7.1 148 10.4 6.7 155
Kirwin 9550 8.3 4.8 173 11.3 6.2 182
Little Warm 9370 5.7 5.1 112 10.4 6.8 153
Owl Creek 8975 3.0 2.8 107 4.5 3.1 145
South Pass 9040 -M 7.2 * 12.9 9.1 142
St. Lawrence Alt 8620 2.8 3.3 85 6.7 4.6 146
Togwotee Pass 9580 16.0 12.4 129 19.7 13.0 152
Townsend Creek 8700 5.5 4.2 131 8.1 6.2 131
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Basin Index (%) 132 150
BIGHORN BASIN
Bald Mtn. 9380 10.8 9.4 115 9.6 8.8 109
Bear Trap Meadow 8200 2.7 2.7 100 4.5 4.5 100
Bone Springs Div 9350 8.2 8.0 102 8.6 7.9 109
Grave Springs 8550 3.3 4.0 82 4.6 5.5 84
Kirwin 9550 8.3 4.8 173 11.3 6.2 182
Marquette 8760 3.7 -M * 7.2 -M *
Middle Powder 7760 4.1 5.5 75 5.0 6.4 78
Owl Creek 8975 3.0 2.8 107 4.5 3.1 145
Powder River Pass 9480 3.1 5.5 56 6.1 6.6 92
Shell Creek 9580 8.9 7.6 117 7.5 7.3 103
Timber Creek 7950 3.2 2.3 139 4.5 4.1 110
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Basin Index (%) 106 110
SHOSHONE RIVER
Blackwater 9780 16.9 11.9 142 20.6 11.0 187
Evening Star 9200 16.0 13.1 122 22.2 14.9 149
Marquette 8760 3.7 -M * 7.2 -M *
Sylvan Road 7120 7.9 6.1 130 17.8 10.0 178
Younts Peak 8350 10.1 7.6 133 14.6 8.7 168
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Basin Index (%) 132 169
POWDER RIVER
Bear Trap Meadow 8200 2.7 2.7 100 4.5 4.5 100
Cloud Peak Reservoir 9860 6.2 6.8 91 8.1 6.7 121
Grave Springs 8550 3.3 4.0 82 4.6 5.5 84
Hansen Sawmill 8360 4.0 3.3 121 5.7 4.4 130
Middle Powder 7760 4.1 5.5 75 5.0 6.4 78
Powder River Pass 9480 3.1 5.5 56 6.1 6.6 92
Soldier Park 8720 6.6 -M * 6.2 -M *
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Basin Index (%) 84 100
TONGUE RIVER
Big Goose 7990 4.7 4.0 118 5.7 5.6 102
Bone Springs Div 9350 8.2 8.0 102 8.6 7.9 109
Burgess Junction 7880 4.7 5.1 92 6.3 6.4 98
Dome Lake 8880 5.6 5.7 98 7.2 7.2 100
Little Goose 8870 5.1 -M * 7.2 -M *
Sucker Creek 8880 5.5 5.9 93 6.3 7.3 86
Tie Creek 6870 3.3 2.3 143 6.3 6.1 103
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Basin Index (%) 103 100
BELLE FOURCHE
Cole Canyon 5910 3.0 2.5 120 4.2 5.0 84
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Basin Index (%) 120 84
CHEYENNE RIVER BASIN
Blind Park 6890 3.6 3.8 95 4.8 6.6 73
North Rapid Creek 6130 3.8 3.5 109 4.2 5.5 76
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Basin Index (%) 101 74
UPPER N. PLATTE
Arapaho Ridge 10960 15.7 10.7 147 16.7 12.2 137
Blackhall Mtn 9820 18.9 -M * -M -M *
Columbine 9160 15.7 11.0 143 17.6 13.2 133
Divide Peak 8880 9.7 9.7 100 12.1 11.4 106
Joe Wright 10120 12.8 10.5 122 18.1 13.4 135
Laprele Creek 8375 5.9 4.5 131 5.6 6.4 88
Med Bow 10500 21.7 -M * 21.2 -M *
North French Creek 10130 13.8 13.0 106 15.5 13.6 114
Never Summer 10280 -M 10.1 * -M -M *
Old Battle 10000 18.3 14.8 124 20.0 18.3 109
Rawah 9020 8.4 5.1 165 10.8 8.1 133
Sage Creek Basin 7850 7.9 6.7 118 8.5 8.3 102
Sand Lake 10050 15.9 13.5 118 15.2 12.5 122
South Brush Creek 8440 6.0 5.6 107 7.4 8.0 92
Tower 10500 22.7 20.5 111 25.6 20.7 124
Webber Springs 9250 14.9 11.2 133 18.4 13.9 132
Willow Creek Pass 9540 10.6 6.0 177 11.7 7.1 165
Zirkel 9340 21.0 13.4 157 22.7 15.8 144
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Basin Index (%) 128 124
SWEETWATER
Deer Park 9700 -M 7.0 * -M 10.1 *
Larsen Creek 9000 9.9 5.6 177 13.6 -M *
South Pass 9040 -M 7.2 * 12.9 9.1 142
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Basin Index (%) 177* 142*
LOWER N. PLATTE
Casper Mtn. 7900 5.8 6.6 88 6.1 7.9 77
Laprele Creek 8375 5.9 4.5 131 5.6 6.4 88
Reno Hill 8400 -M 6.4 * -M 7.7 *
Windy Peak 7900 4.4 3.3 133 5.3 5.6 95
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Basin Index (%) 112 85
LARAMIE RIVER
Brooklyn Lake 10240 13.0 9.6 135 12.1 10.4 116
Cinnabar Park 9574 11.1 10.9 102 13.8 13.3 104
Crow Creek 8330 3.9 4.8 81 5.5 5.9 93
Deadman Hill 10220 11.8 7.8 151 11.7 8.6 136
Rawah 9020 8.4 5.1 165 10.8 8.1 133
Roach 9700 9.3 7.9 118 11.3 9.9 114
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Basin Index (%) 125 116
S. PLATTE
Black Mountain 8920 6.2 -M * 7.5 -M *
Crow Creek 8330 3.9 4.8 81 5.5 5.9 93
Deadman Hill 10220 11.8 7.8 151 11.7 8.6 136
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Basin Index (%) 125 119
LITTLE SNAKE RIVER
Battle Mountain 7440 7.1 5.0 142 9.7 8.0 121
Divide Peak 8880 9.7 9.7 100 12.1 11.4 106
Elk River 8700 12.4 8.4 148 12.7 10.3 123
Little Snake River 8915 17.1 11.1 154 22.3 16.9 132
Old Battle 10000 18.3 14.8 124 20.0 18.3 109
Sage Creek Basin 7850 7.9 6.7 118 8.5 8.3 102
Sandstone RS 8150 8.6 5.7 151 8.6 9.7 89
Whiskey Park 8950 15.2 11.2 136 18.2 13.9 131
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Basin Index (%) 133 116
UPPER GREEN RIVER
Big Sandy Opening 9080 11.2 6.9 162 13.8 7.0 197
Blind Bull Sum 8650 18.2 11.1 164 16.1 10.5 153
East Rim Divide 7930 9.2 5.1 180 11.6 6.3 184
Elkhart Park G.S. 9400 8.1 6.0 135 13.4 7.1 189
Gros Ventre Summit 8750 8.2 7.0 117 12.4 6.7 185
Gunsight Pass 9820 8.9 7.0 127 13.0 7.3 178
Kendall R.S. 7740 10.1 5.8 174 14.4 7.4 195
Loomis Park 8240 12.4 7.2 172 17.5 9.2 190
New Fork Lake 8340 8.4 5.2 162 8.8 5.8 152
Pocket Creek 9360 -M -M * -M -M *
Snider Basin 8060 10.0 6.0 167 14.7 7.5 196
Spring Creek Divide 9000 16.7 11.1 150 21.0 12.5 168
Triple Peak 8500 18.8 10.0 188 23.1 12.7 182
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Basin Index (%) 159 180
LOWER GREEN RIVER
Blacks Fork Jct 8870 7.8 -M * 8.9 -M *
Buck Pasture 9700 10.5 -M * 12.8 -M *
EF Blacks Fork GS 9360 8.0 -M * 9.0 -M *
Hams Fork 7840 8.3 5.2 160 11.4 6.0 190
Hewinta 9519 7.2 4.5 160 9.6 7.1 135
Hickerson Park 9145 5.5 3.1 177 5.9 5.3 111
Hole-in-Rock 9150 4.5 3.2 141 6.4 5.0 128
Indian Creek 9425 16.9 11.3 150 16.5 11.3 146
Kelley R.S. 8180 11.7 7.0 167 17.0 9.5 179
Spirit Lk 10235 8.1 -M * 9.8 -M *
Steel Creek Park 10200 10.1 6.7 151 11.8 8.3 142
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Basin Index (%) 157 150
UPPER BEAR RIVER
Bear River RS 8777 7.5 -M * 9.3 -M *
Bug Lake 7950 14.5 7.4 196 15.4 10.1 152
Burts Miller Ranch 8000 4.0 -M * 4.8 -M *
Chalk Creek #1 8993 16.1 10.9 148 15.8 13.0 122
Hayden Fork 9212 12.1 6.6 183 16.5 10.8 153
Kelley R.S. 8180 11.7 7.0 167 17.0 9.5 179
Lily Lake 9156 8.6 5.8 148 10.7 8.9 120
Monte Cristo 8960 14.9 12.4 120 16.1 13.4 120
Salt River Summit 7760 8.9 5.6 159 14.6 8.6 170
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Basin Index (%) 156 143
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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.
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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.