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 FRIDAY: JANUARY 13 , 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 15.2 9.1 167 22.3 11.8 189
Black Bear 8170 21.1 20.2 104 29.8 20.9 143
Blind Bull Sum 8650 21.1 11.8 179 15.9 10.9 146
Cottonwood Creek 7670 14.7 9.8 150 19.9 13.4 149
East Rim Divide 7930 10.1 5.3 191 12.4 6.5 191
Grand Targhee 9260 26.9 20.9 129 24.8 17.8 139
Granite Creek 6770 14.9 8.0 186 20.6 11.4 181
Grassy Lake 7265 22.0 15.9 138 32.9 20.0 164
Gros Ventre Summit 8750 9.3 7.3 127 13.4 7.0 191
Gunsight Pass 9820 10.0 7.2 139 13.9 7.6 183
Lewis Lake Divide 7850 18.9 15.9 119 27.5 19.6 140
Phillips Bench 8200 17.2 13.9 124 26.2 15.4 170
Salt River Summit 7760 11.1 5.9 188 16.5 9.0 183
Snake River Station 6920 13.8 8.5 162 21.6 13.0 166
Spring Creek Divide 9000 19.2 11.4 168 22.3 13.1 170
Thumb Divide 7980 9.9 7.7 129 15.3 10.4 147
Togwotee Pass 9580 17.4 12.7 137 21.2 13.6 156
Two Ocean Plateau 9240 -M 15.2 * -M 14.8 *
Willow Creek 8380 18.4 13.4 137 27.6 18.3 151
Younts Peak 8350 11.9 8.0 149 15.9 9.0 177
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Basin Index (%) 142 161
MADISON-GALLATIN
Black Bear 8170 21.1 20.2 104 29.8 20.9 143
Canyon 7870 9.2 6.9 133 15.2 9.0 169
Madison Plateau 7750 12.5 11.6 108 21.6 14.7 147
West Yellowstone 6700 7.1 6.0 118 14.6 8.2 178
Whiskey Creek 6800 8.0 8.1 99 16.0 11.4 140
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Basin Index (%) 110 151
YELLOWSTONE
Beartooth Lake 9360 15.0 11.9 126 10.2 10.8 94
Burnt Mtn 5880 4.4 2.0 220 8.4 7.2 117
Canyon 7870 9.2 6.9 133 15.2 9.0 169
Cole Creek 7850 6.0 6.9 87 5.0 6.9 72
Evening Star 9200 17.9 13.6 132 24.1 15.4 156
Fisher Creek 9100 17.6 17.5 101 22.8 17.6 130
Northeast Entrance 7350 6.4 5.1 125 11.5 7.1 162
Parker Peak 9400 15.8 11.3 140 18.6 9.8 190
Sylvan Lake 8420 12.4 11.0 113 22.7 12.8 177
Thumb Divide 7980 9.9 7.7 129 15.3 10.4 147
Two Ocean Plateau 9240 -M 15.2 * -M 14.8 *
White Mill 8700 14.6 12.1 121 17.6 13.1 134
Wolverine 7650 9.6 5.7 168 12.7 7.1 179
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Basin Index (%) 124 145
WIND RIVER
Burroughs Creek 8750 11.7 -M * 14.1 -M *
Castle Creek 8400 6.5 -M * 8.5 -M *
Cold Springs 9630 5.8 3.8 153 8.2 5.5 149
Deer Park 9700 17.2 7.1 242 20.8 10.7 194
Hobbs Park 10100 11.8 7.2 164 11.7 6.8 172
Kirwin 9550 9.3 5.1 182 12.3 6.4 192
Little Warm 9370 6.3 5.4 117 11.4 7.0 163
Owl Creek 8975 3.4 2.9 117 5.0 3.2 156
South Pass 9040 16.4 7.4 222 15.9 9.5 167
St. Lawrence Alt 8620 3.0 3.4 88 7.1 4.7 151
Togwotee Pass 9580 17.4 12.7 137 21.2 13.6 156
Townsend Creek 8700 6.2 4.3 144 8.9 6.3 141
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Basin Index (%) 163 166
BIGHORN BASIN
Bald Mtn. 9380 11.7 9.7 121 10.2 9.2 111
Bear Trap Meadow 8200 2.7 2.8 96 4.3 4.6 93
Bone Springs Div 9350 9.1 8.3 110 9.2 8.2 112
Grave Springs 8550 3.2 4.2 76 4.5 5.7 79
Kirwin 9550 9.3 5.1 182 12.3 6.4 192
Marquette 8760 4.4 -M * 7.9 -M *
Middle Powder 7760 4.1 5.8 71 4.8 6.6 73
Owl Creek 8975 3.4 2.9 117 5.0 3.2 156
Powder River Pass 9480 3.4 5.7 60 6.1 6.8 90
Shell Creek 9580 9.4 7.9 119 7.5 7.5 100
Timber Creek 7950 3.2 2.4 133 4.6 4.2 110
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Basin Index (%) 109 110
SHOSHONE RIVER
Blackwater 9780 18.9 12.5 151 22.5 11.4 197
Evening Star 9200 17.9 13.6 132 24.1 15.4 156
Marquette 8760 4.4 -M * 7.9 -M *
Sylvan Road 7120 9.1 6.3 144 19.2 10.4 185
Younts Peak 8350 11.9 8.0 149 15.9 9.0 177
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Basin Index (%) 143 177
POWDER RIVER
Bear Trap Meadow 8200 2.7 2.8 96 4.3 4.6 93
Cloud Peak Reservoir 9860 6.7 7.0 96 8.4 7.0 120
Grave Springs 8550 3.2 4.2 76 4.5 5.7 79
Hansen Sawmill 8360 4.3 3.4 126 6.1 4.4 139
Middle Powder 7760 4.1 5.8 71 4.8 6.6 73
Powder River Pass 9480 3.4 5.7 60 6.1 6.8 90
Soldier Park 8720 6.9 -M * 6.3 -M *
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Basin Index (%) 84 97
TONGUE RIVER
Big Goose 7990 4.8 4.2 114 5.9 5.8 102
Bone Springs Div 9350 9.1 8.3 110 9.2 8.2 112
Burgess Junction 7880 5.1 5.4 94 6.3 6.5 97
Dome Lake 8880 6.1 5.9 103 7.6 7.4 103
Little Goose 8870 5.3 -M * 7.4 -M *
Sucker Creek 8880 5.9 6.1 97 6.2 7.5 83
Tie Creek 6870 3.6 2.4 150 6.6 6.2 106
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Basin Index (%) 107 100
BELLE FOURCHE
Cole Canyon 5910 3.1 2.5 124 4.0 5.1 78
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Basin Index (%) 124 78
CHEYENNE RIVER BASIN
Blind Park 6890 3.6 3.9 92 4.9 6.8 72
North Rapid Creek 6130 3.8 3.6 106 4.2 5.6 75
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Basin Index (%) 99 73
UPPER N. PLATTE
Arapaho Ridge 10960 17.6 10.9 161 18.4 12.7 145
Blackhall Mtn 9820 22.7 -M * 24.1 -M *
Columbine 9160 17.4 11.9 146 19.0 13.7 139
Divide Peak 8880 11.7 10.0 117 14.2 11.7 121
Joe Wright 10120 13.5 10.8 125 19.2 13.8 139
Laprele Creek 8375 6.4 4.7 136 6.1 6.6 92
Med Bow 10500 24.2 -M * 23.3 -M *
North French Creek 10130 15.2 13.5 113 16.9 14.2 119
Never Summer 10280 -M 10.4 * -M -M *
Old Battle 10000 22.5 15.2 148 24.4 19.0 128
Rawah 9020 9.2 5.3 174 11.7 8.4 139
Sage Creek Basin 7850 9.5 7.0 136 10.1 8.6 117
Sand Lake 10050 18.2 14.0 130 17.6 12.9 136
South Brush Creek 8440 6.4 5.9 108 7.7 8.2 94
Tower 10500 26.8 21.6 124 30.0 21.6 139
Webber Springs 9250 18.4 11.6 159 21.9 14.4 152
Willow Creek Pass 9540 12.1 6.1 198 13.0 7.3 178
Zirkel 9340 -M 15.0 * 23.0 16.5 139
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Basin Index (%) 138 134
SWEETWATER
Deer Park 9700 17.2 7.1 242 20.8 10.7 194
Larsen Creek 9000 11.5 5.8 198 14.9 -M *
South Pass 9040 16.4 7.4 222 15.9 9.5 167
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Basin Index (%) 222 182
LOWER N. PLATTE
Casper Mtn. 7900 5.8 6.7 87 6.1 8.0 76
Laprele Creek 8375 6.4 4.7 136 6.1 6.6 92
Reno Hill 8400 -M 6.5 * -M 7.9 *
Windy Peak 7900 5.0 3.4 147 5.7 5.6 102
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Basin Index (%) 116 89
LARAMIE RIVER
Brooklyn Lake 10240 15.0 10.2 147 14.0 10.7 131
Cinnabar Park 9574 12.3 11.4 108 15.2 14.0 109
Crow Creek 8330 4.0 4.9 82 5.7 6.0 95
Deadman Hill 10220 13.5 8.0 169 13.3 8.9 149
Rawah 9020 9.2 5.3 174 11.7 8.4 139
Roach 9700 11.4 8.4 136 13.6 10.2 133
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Basin Index (%) 136 126
S. PLATTE
Black Mountain 8920 6.9 -M * 8.2 -M *
Crow Creek 8330 4.0 4.9 82 5.7 6.0 95
Deadman Hill 10220 13.5 8.0 169 13.3 8.9 149
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Basin Index (%) 136 128
LITTLE SNAKE RIVER
Battle Mountain 7440 7.8 5.3 147 10.3 8.2 126
Divide Peak 8880 11.7 10.0 117 14.2 11.7 121
Elk River 8700 14.5 8.8 165 14.3 10.8 132
Little Snake River 8915 20.6 11.9 173 25.9 17.8 146
Old Battle 10000 22.5 15.2 148 24.4 19.0 128
Sage Creek Basin 7850 9.5 7.0 136 10.1 8.6 117
Sandstone RS 8150 10.2 6.2 165 10.2 10.1 101
Whiskey Park 8950 17.5 12.0 146 20.2 14.6 138
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Basin Index (%) 150 129
UPPER GREEN RIVER
Big Sandy Opening 9080 12.3 7.0 176 14.8 7.2 206
Blind Bull Sum 8650 21.1 11.8 179 15.9 10.9 146
East Rim Divide 7930 10.1 5.3 191 12.4 6.5 191
Elkhart Park G.S. 9400 9.1 6.2 147 14.5 7.3 199
Gros Ventre Summit 8750 9.3 7.3 127 13.4 7.0 191
Gunsight Pass 9820 10.0 7.2 139 13.9 7.6 183
Kendall R.S. 7740 11.7 6.2 189 15.9 7.8 204
Loomis Park 8240 14.0 7.4 189 19.3 9.6 201
New Fork Lake 8340 9.4 5.4 174 9.7 6.0 162
Pocket Creek 9360 -M -M * -M -M *
Snider Basin 8060 11.2 6.2 181 15.7 7.8 201
Spring Creek Divide 9000 19.2 11.4 168 22.3 13.1 170
Triple Peak 8500 20.7 10.9 190 23.0 13.4 172
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Basin Index (%) 171 183
LOWER GREEN RIVER
Blacks Fork Jct 8870 7.6 -M * 9.7 -M *
Buck Pasture 9700 11.6 -M * 13.6 -M *
EF Blacks Fork GS 9360 8.6 -M * 9.3 -M *
Hams Fork 7840 10.2 5.5 185 12.2 6.2 197
Hewinta 9519 7.8 4.8 162 10.2 7.4 138
Hickerson Park 9145 5.5 3.2 172 5.8 5.4 107
Hole-in-Rock 9150 4.4 3.3 133 6.3 5.1 124
Indian Creek 9425 19.7 11.8 167 -M 11.8 *
Kelley R.S. 8180 13.9 7.2 193 18.9 9.9 191
Spirit Lk 10235 8.4 -M * 10.1 -M *
Steel Creek Park 10200 10.8 7.1 152 12.5 8.5 147
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Basin Index (%) 169 155
UPPER BEAR RIVER
Bear River RS 8777 9.0 -M * 10.5 -M *
Bug Lake 7950 18.8 8.0 235 18.1 10.6 171
Burts Miller Ranch 8000 4.7 -M * 5.2 -M *
Chalk Creek #1 8993 19.4 11.3 172 -M 13.4 *
Hayden Fork 9212 13.9 6.8 204 -M 11.2 *
Kelley R.S. 8180 13.9 7.2 193 18.9 9.9 191
Lily Lake 9156 10.2 6.2 165 12.0 9.2 130
Monte Cristo 8960 18.7 13.2 142 -M 13.9 *
Salt River Summit 7760 11.1 5.9 188 16.5 9.0 183
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Basin Index (%) 181 169*
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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.