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 SATURDAY: JANUARY 14 , 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 9.3 163 22.4 11.9 188
Black Bear 8170 21.0 20.4 103 29.9 21.0 142
Blind Bull Sum 8650 21.3 12.0 178 15.9 11.0 145
Cottonwood Creek 7670 14.7 10.0 147 19.9 13.6 146
East Rim Divide 7930 10.1 5.4 187 12.4 6.6 188
Grand Targhee 9260 26.9 21.0 128 24.9 17.8 140
Granite Creek 6770 14.8 8.2 180 20.5 11.5 178
Grassy Lake 7265 21.9 16.2 135 32.7 20.2 162
Gros Ventre Summit 8750 9.3 7.4 126 13.5 7.1 190
Gunsight Pass 9820 10.0 7.2 139 14.0 7.7 182
Lewis Lake Divide 7850 18.8 16.1 117 27.5 19.8 139
Phillips Bench 8200 17.2 14.2 121 26.2 15.5 169
Salt River Summit 7760 11.1 6.0 185 16.5 9.0 183
Snake River Station 6920 13.7 8.8 156 21.5 13.1 164
Spring Creek Divide 9000 19.2 11.6 166 22.5 13.2 170
Thumb Divide 7980 9.8 7.8 126 15.2 10.4 146
Togwotee Pass 9580 17.4 12.8 136 21.2 13.7 155
Two Ocean Plateau 9240 22.9 15.3 150 23.3 15.0 155
Willow Creek 8380 18.4 13.6 135 27.7 18.5 150
Younts Peak 8350 11.9 8.2 145 16.0 9.1 176
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Basin Index (%) 141 159
MADISON-GALLATIN
Black Bear 8170 21.0 20.4 103 29.9 21.0 142
Canyon 7870 9.2 7.0 131 15.2 9.1 167
Madison Plateau 7750 12.5 11.8 106 21.4 14.8 145
West Yellowstone 6700 7.0 6.0 117 14.6 8.2 178
Whiskey Creek 6800 7.9 8.2 96 15.8 11.4 139
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Basin Index (%) 108 150
YELLOWSTONE
Beartooth Lake 9360 15.0 12.1 124 11.3 10.9 104
Burnt Mtn 5880 4.4 2.0 220 8.4 7.3 115
Canyon 7870 9.2 7.0 131 15.2 9.1 167
Cole Creek 7850 6.0 7.0 86 5.1 6.9 74
Evening Star 9200 18.0 13.8 130 24.2 15.5 156
Fisher Creek 9100 17.6 17.8 99 22.8 17.7 129
Northeast Entrance 7350 6.4 5.1 125 11.5 7.1 162
Parker Peak 9400 -M 11.3 * 18.6 9.8 190
Sylvan Lake 8420 12.4 11.0 113 22.7 12.9 176
Thumb Divide 7980 9.8 7.8 126 15.2 10.4 146
Two Ocean Plateau 9240 22.9 15.3 150 23.3 15.0 155
White Mill 8700 14.6 12.3 119 17.6 13.3 132
Wolverine 7650 9.3 5.8 160 12.3 7.2 171
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Basin Index (%) 124 145
WIND RIVER
Burroughs Creek 8750 11.7 -M * 14.1 -M *
Castle Creek 8400 6.6 -M * 8.6 -M *
Cold Springs 9630 5.9 3.8 155 8.4 5.6 150
Deer Park 9700 17.2 7.1 242 20.8 10.7 194
Hobbs Park 10100 11.7 7.2 162 11.7 6.9 170
Kirwin 9550 9.3 5.2 179 12.2 6.5 188
Little Warm 9370 6.4 5.4 119 11.5 7.1 162
Owl Creek 8975 3.4 2.9 117 5.0 3.2 156
South Pass 9040 16.4 7.5 219 16.0 9.6 167
St. Lawrence Alt 8620 3.1 3.4 91 7.1 4.7 151
Togwotee Pass 9580 17.4 12.8 136 21.2 13.7 155
Townsend Creek 8700 6.2 4.3 144 9.0 6.4 141
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Basin Index (%) 163 165
BIGHORN BASIN
Bald Mtn. 9380 11.7 9.8 119 10.2 9.3 110
Bear Trap Meadow 8200 2.7 2.8 96 4.3 4.6 93
Bone Springs Div 9350 9.1 8.4 108 9.4 8.3 113
Grave Springs 8550 3.2 4.3 74 4.5 5.7 79
Kirwin 9550 9.3 5.2 179 12.2 6.5 188
Marquette 8760 4.4 -M * 8.0 -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 9.5 8.0 119 7.6 7.5 101
Timber Creek 7950 3.2 2.4 133 4.6 4.2 110
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Basin Index (%) 108 110
SHOSHONE RIVER
Blackwater 9780 18.9 12.7 149 22.6 11.5 197
Evening Star 9200 18.0 13.8 130 24.2 15.5 156
Marquette 8760 4.4 -M * 8.0 -M *
Sylvan Road 7120 9.0 6.4 141 19.2 10.5 183
Younts Peak 8350 11.9 8.2 145 16.0 9.1 176
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Basin Index (%) 141 176
POWDER RIVER
Bear Trap Meadow 8200 2.7 2.8 96 4.3 4.6 93
Cloud Peak Reservoir 9860 6.6 7.1 93 8.3 7.0 119
Grave Springs 8550 3.2 4.3 74 4.5 5.7 79
Hansen Sawmill 8360 4.3 3.5 123 6.1 4.5 136
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 (%) 83 97
TONGUE RIVER
Big Goose 7990 4.9 4.2 117 6.0 5.8 103
Bone Springs Div 9350 9.1 8.4 108 9.4 8.3 113
Burgess Junction 7880 5.1 5.5 93 6.3 6.6 95
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 6.2 95 6.3 7.6 83
Tie Creek 6870 3.6 2.5 144 6.5 6.3 103
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Basin Index (%) 106 100
BELLE FOURCHE
Cole Canyon 5910 3.1 2.6 119 4.0 5.1 78
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Basin Index (%) 119 78
CHEYENNE RIVER BASIN
Blind Park 6890 3.6 4.0 90 4.7 6.8 69
North Rapid Creek 6130 3.8 3.6 106 4.1 5.6 73
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Basin Index (%) 97 71
UPPER N. PLATTE
Arapaho Ridge 10960 17.7 11.0 161 18.5 12.8 145
Blackhall Mtn 9820 23.3 -M * 24.3 -M *
Columbine 9160 17.5 12.1 145 19.1 13.9 137
Divide Peak 8880 11.9 10.1 118 14.5 11.8 123
Joe Wright 10120 13.7 10.9 126 19.3 13.9 139
Laprele Creek 8375 6.4 4.7 136 6.2 6.6 94
Med Bow 10500 24.3 -M * 23.4 -M *
North French Creek 10130 15.4 13.7 112 17.0 14.4 118
Never Summer 10280 -M 10.4 * -M -M *
Old Battle 10000 22.7 15.4 147 24.7 19.2 129
Rawah 9020 9.3 5.3 175 11.9 8.4 142
Sage Creek Basin 7850 9.7 7.1 137 10.2 8.6 119
Sand Lake 10050 18.2 14.2 128 17.7 13.0 136
South Brush Creek 8440 6.5 6.0 108 7.8 8.3 94
Tower 10500 27.3 22.0 124 30.5 21.8 140
Webber Springs 9250 18.5 11.7 158 22.0 14.5 152
Willow Creek Pass 9540 12.3 6.2 198 13.1 7.3 179
Zirkel 9340 -M 15.3 * 23.1 16.5 140
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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 5.9 195 15.0 -M *
South Pass 9040 16.4 7.5 219 16.0 9.6 167
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Basin Index (%) 220 181
LOWER N. PLATTE
Casper Mtn. 7900 5.8 6.7 87 6.1 8.1 75
Laprele Creek 8375 6.4 4.7 136 6.2 6.6 94
Reno Hill 8400 -M 6.5 * -M 7.9 *
Windy Peak 7900 5.0 3.5 143 5.7 5.7 100
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Basin Index (%) 115 88
LARAMIE RIVER
Brooklyn Lake 10240 15.2 10.4 146 14.1 10.8 131
Cinnabar Park 9574 12.5 11.5 109 15.3 14.2 108
Crow Creek 8330 4.1 4.9 84 5.6 6.0 93
Deadman Hill 10220 13.6 8.0 170 13.4 8.9 151
Rawah 9020 9.3 5.3 175 11.9 8.4 142
Roach 9700 11.5 8.5 135 13.7 10.3 133
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Basin Index (%) 136 126
S. PLATTE
Black Mountain 8920 6.9 -M * 8.2 -M *
Crow Creek 8330 4.1 4.9 84 5.6 6.0 93
Deadman Hill 10220 13.6 8.0 170 13.4 8.9 151
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Basin Index (%) 137 128
LITTLE SNAKE RIVER
Battle Mountain 7440 7.9 5.3 149 10.4 8.3 125
Divide Peak 8880 11.9 10.1 118 14.5 11.8 123
Elk River 8700 14.7 8.9 165 14.5 10.9 133
Little Snake River 8915 20.8 12.1 172 26.1 17.8 147
Old Battle 10000 22.7 15.4 147 24.7 19.2 129
Sage Creek Basin 7850 9.7 7.1 137 10.2 8.6 119
Sandstone RS 8150 10.2 6.4 159 10.4 10.2 102
Whiskey Park 8950 18.0 12.4 145 20.7 14.9 139
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Basin Index (%) 149 129
UPPER GREEN RIVER
Big Sandy Opening 9080 12.3 7.0 176 14.8 7.3 203
Blind Bull Sum 8650 21.3 12.0 178 15.9 11.0 145
East Rim Divide 7930 10.1 5.4 187 12.4 6.6 188
Elkhart Park G.S. 9400 9.1 6.2 147 14.6 7.4 197
Gros Ventre Summit 8750 9.3 7.4 126 13.5 7.1 190
Gunsight Pass 9820 10.0 7.2 139 14.0 7.7 182
Kendall R.S. 7740 11.7 6.4 183 16.0 7.9 203
Loomis Park 8240 14.0 7.6 184 19.3 9.6 201
New Fork Lake 8340 9.3 5.4 172 9.8 6.1 161
Pocket Creek 9360 -M -M * -M -M *
Snider Basin 8060 11.2 6.3 178 15.9 7.9 201
Spring Creek Divide 9000 19.2 11.6 166 22.5 13.2 170
Triple Peak 8500 20.7 11.1 186 23.0 13.5 170
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Basin Index (%) 169 182
LOWER GREEN RIVER
Blacks Fork Jct 8870 7.7 -M * 9.8 -M *
Buck Pasture 9700 11.8 -M * 13.7 -M *
EF Blacks Fork GS 9360 8.8 -M * 9.5 -M *
Hams Fork 7840 10.2 5.6 182 12.2 6.3 194
Hewinta 9519 8.0 4.8 167 10.4 7.4 141
Hickerson Park 9145 5.6 3.2 175 5.8 5.5 105
Hole-in-Rock 9150 4.6 3.3 139 6.5 5.2 125
Indian Creek 9425 19.8 11.9 166 -M 12.0 *
Kelley R.S. 8180 13.9 7.3 190 19.0 10.0 190
Spirit Lk 10235 8.5 -M * 10.1 -M *
Steel Creek Park 10200 10.9 7.2 151 12.5 8.6 145
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Basin Index (%) 169 154
UPPER BEAR RIVER
Bear River RS 8777 9.0 -M * 10.8 -M *
Bug Lake 7950 18.9 8.3 228 18.2 10.6 172
Burts Miller Ranch 8000 4.7 -M * 5.3 -M *
Chalk Creek #1 8993 19.5 11.4 171 -M 13.5 *
Hayden Fork 9212 13.9 6.9 201 -M 11.3 *
Kelley R.S. 8180 13.9 7.3 190 19.0 10.0 190
Lily Lake 9156 10.3 6.3 163 12.0 9.2 130
Monte Cristo 8960 18.7 13.3 141 -M 14.0 *
Salt River Summit 7760 11.1 6.0 185 16.5 9.0 183
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Basin Index (%) 179 169*
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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.