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 25 , 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 15.6 10.3 151 23.4 13.2 177
Black Bear 8170 22.4 22.7 99 31.5 23.6 133
Blind Bull Sum 8650 22.1 13.0 170 -M 12.2 *
Cottonwood Creek 7670 16.3 11.8 138 22.5 14.9 151
East Rim Divide 7930 10.9 6.5 168 13.1 7.3 179
Grand Targhee 9260 28.4 22.5 126 26.2 19.5 134
Granite Creek 6770 15.9 9.4 169 21.0 12.9 163
Grassy Lake 7265 23.3 18.5 126 34.6 22.6 153
Gros Ventre Summit 8750 9.7 7.9 123 13.8 7.8 177
Gunsight Pass 9820 10.2 7.9 129 14.2 8.4 169
Lewis Lake Divide 7850 20.0 18.3 109 31.6 21.9 144
Phillips Bench 8200 18.7 15.8 118 26.7 17.2 155
Salt River Summit 7760 12.2 7.3 167 17.3 10.0 173
Snake River Station 6920 14.1 9.7 145 23.2 14.6 159
Spring Creek Divide 9000 20.3 13.1 155 22.9 14.6 157
Thumb Divide 7980 10.4 8.9 117 15.8 11.6 136
Togwotee Pass 9580 18.2 13.8 132 21.9 15.1 145
Two Ocean Plateau 9240 23.4 16.1 145 23.7 16.4 145
Willow Creek 8380 19.9 16.2 123 30.8 20.5 150
Younts Peak 8350 12.3 8.9 138 16.5 10.0 165
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Basin Index (%) 133 153
MADISON-GALLATIN
Black Bear 8170 22.4 22.7 99 31.5 23.6 133
Canyon 7870 9.3 7.7 121 15.5 10.1 153
Madison Plateau 7750 13.5 13.7 99 22.7 16.4 138
West Yellowstone 6700 7.7 6.7 115 15.1 9.0 168
Whiskey Creek 6800 8.8 9.2 96 16.5 12.6 131
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Basin Index (%) 103 141
YELLOWSTONE
Beartooth Lake 9360 15.3 13.1 117 11.6 12.1 96
Burnt Mtn 5880 4.5 2.4 188 8.5 7.6 112
Canyon 7870 9.3 7.7 121 15.5 10.1 153
Cole Creek 7850 6.1 7.8 78 5.0 7.3 68
Evening Star 9200 18.5 14.9 124 24.8 17.0 146
Fisher Creek 9100 18.1 19.7 92 23.2 19.6 118
Northeast Entrance 7350 6.5 6.0 108 11.7 7.9 148
Parker Peak 9400 16.1 12.2 132 19.0 10.8 176
Sylvan Lake 8420 12.8 12.2 105 23.3 14.1 165
Thumb Divide 7980 10.4 8.9 117 15.8 11.6 136
Two Ocean Plateau 9240 23.4 16.1 145 23.7 16.4 145
White Mill 8700 15.1 13.7 110 18.0 14.6 123
Wolverine 7650 -M 6.5 * -M 7.8 *
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Basin Index (%) 116 134
WIND RIVER
Burroughs Creek 8750 12.1 -M * 14.5 -M *
Castle Creek 8400 6.7 -M * 8.8 -M *
Cold Springs 9630 6.1 4.2 145 8.4 5.9 142
Deer Park 9700 17.9 8.3 216 20.9 11.7 179
Hobbs Park 10100 12.1 7.8 155 12.0 7.4 162
Kirwin 9550 9.6 5.5 175 12.5 7.0 179
Little Warm 9370 6.5 5.9 110 11.6 7.7 151
Owl Creek 8975 3.8 3.0 127 5.3 3.4 156
South Pass 9040 16.9 8.2 206 16.2 10.4 156
St. Lawrence Alt 8620 3.5 3.9 90 7.6 5.1 149
Togwotee Pass 9580 18.2 13.8 132 21.9 15.1 145
Townsend Creek 8700 6.7 4.8 140 9.3 6.8 137
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Basin Index (%) 155 156
BIGHORN BASIN
Bald Mtn. 9380 12.1 10.4 116 10.4 10.2 102
Bear Trap Meadow 8200 3.0 3.2 94 4.5 5.0 90
Bone Springs Div 9350 9.4 9.5 99 9.6 9.1 105
Grave Springs 8550 3.7 4.8 77 4.5 6.2 73
Kirwin 9550 9.6 5.5 175 12.5 7.0 179
Marquette 8760 4.8 -M * 8.2 -M *
Middle Powder 7760 4.6 6.1 75 4.8 7.0 69
Owl Creek 8975 3.8 3.0 127 5.3 3.4 156
Powder River Pass 9480 3.7 6.0 62 6.3 7.5 84
Shell Creek 9580 9.7 8.8 110 7.9 8.3 95
Timber Creek 7950 3.6 2.9 124 4.9 4.3 114
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Basin Index (%) 105 104
SHOSHONE RIVER
Blackwater 9780 19.3 13.6 142 23.0 12.6 183
Evening Star 9200 18.5 14.9 124 24.8 17.0 146
Marquette 8760 4.8 -M * 8.2 -M *
Sylvan Road 7120 9.3 7.4 126 19.4 11.3 172
Younts Peak 8350 12.3 8.9 138 16.5 10.0 165
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Basin Index (%) 133 164
POWDER RIVER
Bear Trap Meadow 8200 3.0 3.2 94 4.5 5.0 90
Cloud Peak Reservoir 9860 7.1 7.8 91 8.8 7.6 116
Grave Springs 8550 3.7 4.8 77 4.5 6.2 73
Hansen Sawmill 8360 4.7 3.9 121 6.5 4.8 135
Middle Powder 7760 4.6 6.1 75 4.8 7.0 69
Powder River Pass 9480 3.7 6.0 62 6.3 7.5 84
Soldier Park 8720 7.2 -M * 6.6 -M *
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Basin Index (%) 84 93
TONGUE RIVER
Big Goose 7990 5.1 4.6 111 6.1 6.2 98
Bone Springs Div 9350 9.4 9.5 99 9.6 9.1 105
Burgess Junction 7880 5.4 6.4 84 6.5 7.2 90
Dome Lake 8880 6.3 6.5 97 7.7 8.0 96
Little Goose 8870 5.6 -M * 7.7 -M *
Sucker Creek 8880 6.3 6.8 93 6.5 8.2 79
Tie Creek 6870 3.7 3.1 119 6.8 6.8 100
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Basin Index (%) 98 95
BELLE FOURCHE
Cole Canyon 5910 3.2 3.1 103 4.1 5.5 75
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Basin Index (%) 103 75
CHEYENNE RIVER BASIN
Blind Park 6890 3.9 4.2 93 5.0 7.4 68
North Rapid Creek 6130 4.1 4.0 102 4.3 6.0 72
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Basin Index (%) 98 69
UPPER N. PLATTE
Arapaho Ridge 10960 18.6 12.0 155 19.5 13.4 146
Blackhall Mtn 9820 24.9 -M * 26.4 -M *
Columbine 9160 18.7 13.7 136 20.4 15.4 132
Divide Peak 8880 13.2 11.5 115 15.5 13.0 119
Joe Wright 10120 14.4 12.4 116 19.7 15.2 130
Laprele Creek 8375 7.0 5.3 132 6.7 7.2 93
Med Bow 10500 25.9 -M * 24.8 -M *
North French Creek 10130 16.6 15.2 109 18.2 15.9 114
Never Summer 10280 -M 11.4 * -M -M *
Old Battle 10000 24.8 17.9 139 26.2 21.2 124
Rawah 9020 9.9 5.9 168 12.3 8.8 140
Sage Creek Basin 7850 11.0 7.7 143 11.6 9.2 126
Sand Lake 10050 19.1 15.6 122 18.2 14.3 127
South Brush Creek 8440 6.9 6.9 100 8.0 9.1 88
Tower 10500 29.5 25.6 115 31.2 24.0 130
Webber Springs 9250 19.4 12.8 152 22.9 16.1 142
Willow Creek Pass 9540 13.1 6.9 190 14.0 7.9 177
Zirkel 9340 27.1 17.0 159 32.5 17.6 185
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Basin Index (%) 134 133
SWEETWATER
Deer Park 9700 17.9 8.3 216 20.9 11.7 179
Larsen Creek 9000 11.9 6.8 175 15.3 -M *
South Pass 9040 16.9 8.2 206 16.2 10.4 156
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Basin Index (%) 200 168
LOWER N. PLATTE
Casper Mtn. 7900 6.5 7.2 90 6.6 8.7 76
Laprele Creek 8375 7.0 5.3 132 6.7 7.2 93
Reno Hill 8400 -M 7.4 * -M 8.5 *
Windy Peak 7900 5.7 4.0 142 6.2 6.1 102
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Basin Index (%) 116 89
LARAMIE RIVER
Brooklyn Lake 10240 16.0 11.6 138 14.7 12.2 120
Cinnabar Park 9574 13.0 12.5 104 15.8 15.1 105
Crow Creek 8330 4.2 5.6 75 5.9 6.3 94
Deadman Hill 10220 13.9 9.1 153 13.8 9.7 142
Rawah 9020 9.9 5.9 168 12.3 8.8 140
Roach 9700 12.3 9.6 128 14.5 11.2 129
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Basin Index (%) 128 122
S. PLATTE
Black Mountain 8920 7.0 -M * 8.3 -M *
Crow Creek 8330 4.2 5.6 75 5.9 6.3 94
Deadman Hill 10220 13.9 9.1 153 13.8 9.7 142
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Basin Index (%) 123 123
LITTLE SNAKE RIVER
Battle Mountain 7440 8.7 6.6 132 -M 9.2 *
Divide Peak 8880 13.2 11.5 115 15.5 13.0 119
Elk River 8700 15.7 10.2 154 15.6 12.0 130
Little Snake River 8915 22.5 14.1 160 28.2 19.5 145
Old Battle 10000 24.8 17.9 139 26.2 21.2 124
Sage Creek Basin 7850 11.0 7.7 143 11.6 9.2 126
Sandstone RS 8150 10.7 7.5 143 11.2 11.3 99
Whiskey Park 8950 19.2 15.0 128 22.0 16.7 132
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Basin Index (%) 139 127
UPPER GREEN RIVER
Big Sandy Opening 9080 13.0 7.4 176 15.5 7.9 196
Blind Bull Sum 8650 22.1 13.0 170 -M 12.2 *
East Rim Divide 7930 10.9 6.5 168 13.1 7.3 179
Elkhart Park G.S. 9400 9.8 7.1 138 15.2 8.1 188
Gros Ventre Summit 8750 9.7 7.9 123 13.8 7.8 177
Gunsight Pass 9820 10.2 7.9 129 14.2 8.4 169
Kendall R.S. 7740 12.4 7.3 170 16.7 8.7 192
Loomis Park 8240 15.0 9.1 165 20.1 10.6 190
New Fork Lake 8340 10.1 6.5 155 10.3 6.7 154
Pocket Creek 9360 -M -M * -M -M *
Snider Basin 8060 12.1 7.0 173 16.8 8.7 193
Spring Creek Divide 9000 20.3 13.1 155 22.9 14.6 157
Triple Peak 8500 22.0 12.0 183 23.3 15.1 154
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Basin Index (%) 160 175
LOWER GREEN RIVER
Blacks Fork Jct 8870 8.2 -M * 10.4 -M *
Buck Pasture 9700 13.4 -M * 16.1 -M *
EF Blacks Fork GS 9360 9.2 -M * 9.6 -M *
Hams Fork 7840 11.2 6.8 165 13.2 6.9 191
Hewinta 9519 8.5 5.2 163 10.8 8.2 132
Hickerson Park 9145 5.8 3.4 171 6.0 5.9 102
Hole-in-Rock 9150 4.8 3.8 126 6.6 5.5 120
Indian Creek 9425 21.2 13.7 155 -M 13.2 *
Kelley R.S. 8180 15.2 8.5 179 20.4 10.9 187
Spirit Lk 10235 9.5 -M * 11.1 -M *
Steel Creek Park 10200 11.6 8.0 145 13.3 9.4 141
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Basin Index (%) 159 150
UPPER BEAR RIVER
Bear River RS 8777 9.8 -M * 11.5 -M *
Bug Lake 7950 -M 9.6 * -M 11.7 *
Burts Miller Ranch 8000 5.6 -M * 5.8 -M *
Chalk Creek #1 8993 21.7 12.6 172 -M 14.8 *
Hayden Fork 9212 15.6 8.0 195 -M 12.4 *
Kelley R.S. 8180 15.2 8.5 179 20.4 10.9 187
Lily Lake 9156 10.7 7.0 153 12.7 10.1 126
Monte Cristo 8960 21.7 14.6 149 -M 15.4 *
Salt River Summit 7760 12.2 7.3 167 17.3 10.0 173
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Basin Index (%) 167 163*
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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.