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: JANUARY 11 , 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 14.3 8.7 164 21.8 11.6 188
Black Bear 8170 19.4 19.8 98 28.5 20.5 139
Blind Bull Sum 8650 20.1 11.3 178 16.1 10.6 152
Cottonwood Creek 7670 14.0 9.4 149 19.7 13.1 150
East Rim Divide 7930 9.9 5.2 190 12.4 6.4 194
Grand Targhee 9260 26.3 20.6 128 24.4 17.5 139
Granite Creek 6770 14.5 7.7 188 20.3 11.0 185
Grassy Lake 7265 20.6 15.4 134 31.9 19.6 163
Gros Ventre Summit 8750 9.1 7.1 128 13.1 6.9 190
Gunsight Pass 9820 9.8 7.0 140 13.9 7.4 188
Lewis Lake Divide 7850 17.5 15.4 114 27.6 19.4 142
Phillips Bench 8200 16.4 13.3 123 25.6 15.0 171
Salt River Summit 7760 10.2 5.7 179 15.7 8.7 180
Snake River Station 6920 13.3 8.1 164 21.8 12.7 172
Spring Creek Divide 9000 18.2 11.1 164 21.8 12.7 172
Thumb Divide 7980 9.2 7.4 124 14.8 10.1 147
Togwotee Pass 9580 17.0 12.5 136 20.8 13.3 156
Two Ocean Plateau 9240 -M 14.7 * -M 14.5 *
Willow Creek 8380 17.5 12.9 136 27.6 17.9 154
Younts Peak 8350 11.5 7.7 149 15.8 8.8 180
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Basin Index (%) 140 162
MADISON-GALLATIN
Black Bear 8170 19.4 19.8 98 28.5 20.5 139
Canyon 7870 8.5 6.6 129 14.5 8.9 163
Madison Plateau 7750 11.5 11.3 102 20.8 14.4 144
West Yellowstone 6700 6.9 5.8 119 14.3 8.1 177
Whiskey Creek 6800 7.6 8.0 95 15.2 11.2 136
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Basin Index (%) 105 148
YELLOWSTONE
Beartooth Lake 9360 14.3 11.5 124 10.4 10.6 98
Burnt Mtn 5880 4.2 1.9 221 8.1 7.2 112
Canyon 7870 8.5 6.6 129 14.5 8.9 163
Cole Creek 7850 5.7 6.8 84 4.9 6.8 72
Evening Star 9200 16.9 13.3 127 22.8 15.1 151
Fisher Creek 9100 17.0 17.2 99 21.9 17.2 127
Northeast Entrance 7350 5.9 4.9 120 11.2 7.0 160
Parker Peak 9400 14.9 11.2 133 17.6 9.6 183
Sylvan Lake 8420 11.4 10.8 106 21.9 12.6 174
Thumb Divide 7980 9.2 7.4 124 14.8 10.1 147
Two Ocean Plateau 9240 -M 14.7 * -M 14.5 *
White Mill 8700 13.8 11.8 117 17.1 12.9 133
Wolverine 7650 8.8 5.6 157 12.1 7.0 173
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Basin Index (%) 120 142
WIND RIVER
Burroughs Creek 8750 11.5 -M * 13.7 -M *
Castle Creek 8400 6.5 -M * 8.7 -M *
Cold Springs 9630 5.7 3.7 154 7.8 5.4 144
Deer Park 9700 -M 7.0 * -M 10.3 *
Hobbs Park 10100 11.4 7.1 161 11.1 6.7 166
Kirwin 9550 9.2 4.9 188 12.1 6.3 192
Little Warm 9370 6.3 5.2 121 11.1 6.9 161
Owl Creek 8975 3.5 2.8 125 5.1 3.1 165
South Pass 9040 15.1 7.2 210 14.5 9.3 156
St. Lawrence Alt 8620 3.2 3.4 94 7.1 4.6 154
Togwotee Pass 9580 17.0 12.5 136 20.8 13.3 156
Townsend Creek 8700 6.2 4.2 148 8.8 6.2 142
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Basin Index (%) 152 159
BIGHORN BASIN
Bald Mtn. 9380 11.2 9.5 118 9.7 8.9 109
Bear Trap Meadow 8200 2.8 2.8 100 4.5 4.5 100
Bone Springs Div 9350 8.8 8.1 109 9.0 8.0 112
Grave Springs 8550 3.3 4.0 82 4.6 5.6 82
Kirwin 9550 9.2 4.9 188 12.1 6.3 192
Marquette 8760 4.1 -M * 7.3 -M *
Middle Powder 7760 4.2 5.6 75 5.0 6.5 77
Owl Creek 8975 3.5 2.8 125 5.1 3.1 165
Powder River Pass 9480 3.3 5.6 59 6.3 6.7 94
Shell Creek 9580 9.3 7.7 121 7.5 7.3 103
Timber Creek 7950 3.3 2.3 143 4.6 4.1 112
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Basin Index (%) 111 112
SHOSHONE RIVER
Blackwater 9780 17.8 12.2 146 21.5 11.2 192
Evening Star 9200 16.9 13.3 127 22.8 15.1 151
Marquette 8760 4.1 -M * 7.3 -M *
Sylvan Road 7120 8.4 6.1 138 18.3 10.2 179
Younts Peak 8350 11.5 7.7 149 15.8 8.8 180
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Basin Index (%) 139 173
POWDER RIVER
Bear Trap Meadow 8200 2.8 2.8 100 4.5 4.5 100
Cloud Peak Reservoir 9860 6.6 6.8 97 8.3 6.8 122
Grave Springs 8550 3.3 4.0 82 4.6 5.6 82
Hansen Sawmill 8360 4.3 3.4 126 6.0 4.4 136
Middle Powder 7760 4.2 5.6 75 5.0 6.5 77
Powder River Pass 9480 3.3 5.6 59 6.3 6.7 94
Soldier Park 8720 6.9 -M * 6.4 -M *
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Basin Index (%) 87 101
TONGUE RIVER
Big Goose 7990 4.8 4.1 117 5.7 5.6 102
Bone Springs Div 9350 8.8 8.1 109 9.0 8.0 112
Burgess Junction 7880 4.8 5.2 92 6.2 6.4 97
Dome Lake 8880 6.0 5.8 103 7.4 7.2 103
Little Goose 8870 5.3 -M * 7.4 -M *
Sucker Creek 8880 5.7 5.9 97 6.4 7.3 88
Tie Creek 6870 3.2 2.4 133 5.9 6.1 97
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Basin Index (%) 106 100
BELLE FOURCHE
Cole Canyon 5910 2.9 2.5 116 4.0 5.0 80
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Basin Index (%) 116 80
CHEYENNE RIVER BASIN
Blind Park 6890 3.7 3.9 95 4.8 6.6 73
North Rapid Creek 6130 3.7 3.5 106 4.1 5.5 75
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Basin Index (%) 100 74
UPPER N. PLATTE
Arapaho Ridge 10960 16.4 10.8 152 17.4 12.3 141
Blackhall Mtn 9820 19.7 -M * 21.3 -M *
Columbine 9160 16.2 11.3 143 18.1 13.4 135
Divide Peak 8880 10.0 9.8 102 12.4 11.6 107
Joe Wright 10120 12.8 10.6 121 18.3 13.6 135
Laprele Creek 8375 5.8 4.6 126 5.5 6.5 85
Med Bow 10500 21.9 -M * 21.2 -M *
North French Creek 10130 13.9 13.2 105 15.6 13.9 112
Never Summer 10280 -M 10.2 * -M -M *
Old Battle 10000 19.3 15.0 129 20.9 18.6 112
Rawah 9020 8.4 5.2 162 10.8 8.2 132
Sage Creek Basin 7850 8.2 6.8 121 8.7 8.4 104
Sand Lake 10050 16.2 13.7 118 15.5 12.6 123
South Brush Creek 8440 5.9 5.7 104 7.4 8.0 92
Tower 10500 23.7 20.9 113 26.5 21.0 126
Webber Springs 9250 15.8 11.4 139 19.3 14.0 138
Willow Creek Pass 9540 11.2 6.0 187 12.1 7.2 168
Zirkel 9340 -M 13.9 * 22.8 16.0 142
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Basin Index (%) 127 125
SWEETWATER
Deer Park 9700 -M 7.0 * -M 10.3 *
Larsen Creek 9000 10.8 5.7 189 14.2 -M *
South Pass 9040 15.1 7.2 210 14.5 9.3 156
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Basin Index (%) 201 156*
LOWER N. PLATTE
Casper Mtn. 7900 5.7 6.6 86 6.1 8.0 76
Laprele Creek 8375 5.8 4.6 126 5.5 6.5 85
Reno Hill 8400 -M 6.5 * -M 7.8 *
Windy Peak 7900 4.5 3.3 136 5.4 5.6 96
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Basin Index (%) 110 85
LARAMIE RIVER
Brooklyn Lake 10240 13.3 9.9 134 12.3 10.5 117
Cinnabar Park 9574 11.3 11.2 101 14.0 13.6 103
Crow Creek 8330 3.8 4.9 78 5.5 5.9 93
Deadman Hill 10220 12.0 7.8 154 11.9 8.7 137
Rawah 9020 8.4 5.2 162 10.8 8.2 132
Roach 9700 9.7 8.1 120 11.7 10.0 117
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Basin Index (%) 124 116
S. PLATTE
Black Mountain 8920 6.4 -M * 7.6 -M *
Crow Creek 8330 3.8 4.9 78 5.5 5.9 93
Deadman Hill 10220 12.0 7.8 154 11.9 8.7 137
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Basin Index (%) 124 119
LITTLE SNAKE RIVER
Battle Mountain 7440 7.1 5.1 139 9.7 8.0 121
Divide Peak 8880 10.0 9.8 102 12.4 11.6 107
Elk River 8700 12.8 8.5 151 12.9 10.5 123
Little Snake River 8915 17.5 11.4 154 23.1 17.2 134
Old Battle 10000 19.3 15.0 129 20.9 18.6 112
Sage Creek Basin 7850 8.2 6.8 121 8.7 8.4 104
Sandstone RS 8150 8.7 5.9 147 8.9 9.9 90
Whiskey Park 8950 15.4 11.5 134 18.3 14.2 129
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Basin Index (%) 134 117
UPPER GREEN RIVER
Big Sandy Opening 9080 11.9 6.9 172 14.3 7.1 201
Blind Bull Sum 8650 20.1 11.3 178 16.1 10.6 152
East Rim Divide 7930 9.9 5.2 190 12.4 6.4 194
Elkhart Park G.S. 9400 8.8 6.1 144 13.7 7.2 190
Gros Ventre Summit 8750 9.1 7.1 128 13.1 6.9 190
Gunsight Pass 9820 9.8 7.0 140 13.9 7.4 188
Kendall R.S. 7740 11.5 5.9 195 15.7 7.6 207
Loomis Park 8240 13.8 7.2 192 18.9 9.3 203
New Fork Lake 8340 9.2 5.3 174 9.5 5.9 161
Pocket Creek 9360 -M -M * -M -M *
Snider Basin 8060 10.8 6.1 177 15.4 7.6 203
Spring Creek Divide 9000 18.2 11.1 164 21.8 12.7 172
Triple Peak 8500 20.0 10.3 194 23.2 13.0 178
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Basin Index (%) 171 185
LOWER GREEN RIVER
Blacks Fork Jct 8870 7.2 -M * 9.1 -M *
Buck Pasture 9700 10.9 -M * 13.1 -M *
EF Blacks Fork GS 9360 8.3 -M * 9.0 -M *
Hams Fork 7840 9.6 5.3 181 11.7 6.1 192
Hewinta 9519 7.3 4.6 159 9.7 7.2 135
Hickerson Park 9145 5.5 3.1 177 5.9 5.4 109
Hole-in-Rock 9150 4.6 3.3 139 6.5 5.0 130
Indian Creek 9425 18.6 11.5 162 -M 11.6 *
Kelley R.S. 8180 13.0 7.1 183 18.1 9.7 187
Spirit Lk 10235 8.2 -M * 9.9 -M *
Steel Creek Park 10200 10.3 6.8 151 11.9 8.4 142
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Basin Index (%) 165 153
UPPER BEAR RIVER
Bear River RS 8777 8.1 -M * 9.8 -M *
Bug Lake 7950 16.5 7.6 217 16.8 10.3 163
Burts Miller Ranch 8000 4.1 -M * 5.0 -M *
Chalk Creek #1 8993 17.6 11.1 159 -M 13.1 *
Hayden Fork 9212 12.8 6.7 191 17.1 10.9 157
Kelley R.S. 8180 13.0 7.1 183 18.1 9.7 187
Lily Lake 9156 9.3 6.0 155 11.0 9.0 122
Monte Cristo 8960 16.2 12.7 128 -M 13.6 *
Salt River Summit 7760 10.2 5.7 179 15.7 8.7 180
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Basin Index (%) 168 162
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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.