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 THURSDAY: JANUARY 26 , 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 15.5 10.4 149 23.4 13.3 176
Black Bear 8170 22.4 22.8 98 31.5 23.8 132
Blind Bull Sum 8650 22.0 13.1 168 -M 12.3 *
Cottonwood Creek 7670 16.3 11.9 137 22.5 15.1 149
East Rim Divide 7930 10.9 6.6 165 13.1 7.4 177
Grand Targhee 9260 28.3 22.8 124 26.1 19.7 132
Granite Creek 6770 15.8 9.6 165 20.9 13.0 161
Grassy Lake 7265 23.4 18.7 125 34.6 22.8 152
Gros Ventre Summit 8750 9.6 8.0 120 13.7 7.8 176
Gunsight Pass 9820 10.2 7.9 129 14.1 8.5 166
Lewis Lake Divide 7850 19.9 18.5 108 31.5 22.0 143
Phillips Bench 8200 18.7 15.9 118 26.8 17.3 155
Salt River Summit 7760 12.2 7.3 167 17.3 10.1 171
Snake River Station 6920 14.1 9.8 144 23.2 14.7 158
Spring Creek Divide 9000 20.3 13.3 153 22.9 14.7 156
Thumb Divide 7980 10.3 9.1 113 15.7 11.6 135
Togwotee Pass 9580 18.2 14.0 130 21.8 15.2 143
Two Ocean Plateau 9240 23.4 16.2 144 23.7 16.5 144
Willow Creek 8380 19.9 16.4 121 30.8 20.7 149
Younts Peak 8350 12.4 9.0 138 16.7 10.1 165
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Basin Index (%) 132 151
MADISON-GALLATIN
Black Bear 8170 22.4 22.8 98 31.5 23.8 132
Canyon 7870 9.3 7.8 119 15.5 10.2 152
Madison Plateau 7750 13.6 13.8 99 22.7 16.5 138
West Yellowstone 6700 7.7 6.8 113 15.1 9.1 166
Whiskey Creek 6800 8.8 9.3 95 16.6 12.6 132
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Basin Index (%) 102 140
YELLOWSTONE
Beartooth Lake 9360 15.3 13.2 116 11.7 12.2 96
Burnt Mtn 5880 4.5 2.4 188 8.5 7.6 112
Canyon 7870 9.3 7.8 119 15.5 10.2 152
Cole Creek 7850 6.1 7.8 78 5.0 7.3 68
Evening Star 9200 18.6 15.1 123 24.8 17.2 144
Fisher Creek 9100 18.2 19.8 92 23.3 19.8 118
Northeast Entrance 7350 6.5 6.1 107 11.7 7.9 148
Parker Peak 9400 16.2 12.2 133 19.0 10.9 174
Sylvan Lake 8420 12.9 12.3 105 23.3 14.2 164
Thumb Divide 7980 10.3 9.1 113 15.7 11.6 135
Two Ocean Plateau 9240 23.4 16.2 144 23.7 16.5 144
White Mill 8700 15.1 13.8 109 18.0 14.7 122
Wolverine 7650 -M 6.6 * -M 7.9 *
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Basin Index (%) 115 133
WIND RIVER
Burroughs Creek 8750 12.1 -M * 14.7 -M *
Castle Creek 8400 6.8 -M * 8.9 -M *
Cold Springs 9630 6.2 4.2 148 8.6 6.0 143
Deer Park 9700 17.9 8.4 213 20.9 11.8 177
Hobbs Park 10100 12.3 7.8 158 12.1 7.5 161
Kirwin 9550 9.7 5.5 176 12.6 7.0 180
Little Warm 9370 6.8 6.0 113 11.8 7.8 151
Owl Creek 8975 3.9 3.1 126 5.4 3.4 159
South Pass 9040 16.9 8.3 204 16.3 10.4 157
St. Lawrence Alt 8620 3.5 3.9 90 7.6 5.1 149
Togwotee Pass 9580 18.2 14.0 130 21.8 15.2 143
Townsend Creek 8700 6.8 4.8 142 9.5 6.8 140
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Basin Index (%) 155 156
BIGHORN BASIN
Bald Mtn. 9380 12.1 10.4 116 10.6 10.3 103
Bear Trap Meadow 8200 3.1 3.3 94 4.5 5.0 90
Bone Springs Div 9350 9.5 9.5 100 9.7 9.2 105
Grave Springs 8550 3.7 4.8 77 4.6 6.2 74
Kirwin 9550 9.7 5.5 176 12.6 7.0 180
Marquette 8760 4.8 -M * 8.2 -M *
Middle Powder 7760 4.6 6.1 75 5.1 7.1 72
Owl Creek 8975 3.9 3.1 126 5.4 3.4 159
Powder River Pass 9480 3.7 6.0 62 6.5 7.6 86
Shell Creek 9580 9.8 8.8 111 8.1 8.4 96
Timber Creek 7950 3.6 3.0 120 4.9 4.3 114
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Basin Index (%) 105 105
SHOSHONE RIVER
Blackwater 9780 19.3 13.8 140 23.0 12.7 181
Evening Star 9200 18.6 15.1 123 24.8 17.2 144
Marquette 8760 4.8 -M * 8.2 -M *
Sylvan Road 7120 9.3 7.5 124 19.5 11.4 171
Younts Peak 8350 12.4 9.0 138 16.7 10.1 165
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Basin Index (%) 131 163
POWDER RIVER
Bear Trap Meadow 8200 3.1 3.3 94 4.5 5.0 90
Cloud Peak Reservoir 9860 7.1 7.9 90 9.0 7.6 118
Grave Springs 8550 3.7 4.8 77 4.6 6.2 74
Hansen Sawmill 8360 4.7 3.9 121 6.5 4.8 135
Middle Powder 7760 4.6 6.1 75 5.1 7.1 72
Powder River Pass 9480 3.7 6.0 62 6.5 7.6 86
Soldier Park 8720 7.3 -M * 6.7 -M *
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Basin Index (%) 84 95
TONGUE RIVER
Big Goose 7990 5.1 4.6 111 6.2 6.2 100
Bone Springs Div 9350 9.5 9.5 100 9.7 9.2 105
Burgess Junction 7880 5.5 6.4 86 6.7 7.2 93
Dome Lake 8880 6.3 6.5 97 7.8 8.0 98
Little Goose 8870 5.6 -M * 7.7 -M *
Sucker Creek 8880 6.3 6.9 91 6.8 8.3 82
Tie Creek 6870 3.8 3.1 123 6.9 6.8 101
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Basin Index (%) 99 96
BELLE FOURCHE
Cole Canyon 5910 3.3 3.1 106 4.2 5.5 76
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Basin Index (%) 106 76
CHEYENNE RIVER BASIN
Blind Park 6890 3.9 4.2 93 5.0 7.5 67
North Rapid Creek 6130 4.2 4.0 105 4.4 6.0 73
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Basin Index (%) 99 70
UPPER N. PLATTE
Arapaho Ridge 10960 18.6 12.2 152 19.4 13.5 144
Blackhall Mtn 9820 25.2 -M * 26.5 -M *
Columbine 9160 18.9 13.9 136 20.5 15.6 131
Divide Peak 8880 13.2 11.6 114 15.5 13.1 118
Joe Wright 10120 14.4 12.5 115 19.0 15.3 124
Laprele Creek 8375 7.0 5.3 132 6.7 7.2 93
Med Bow 10500 26.0 -M * 24.8 -M *
North French Creek 10130 16.6 15.3 108 18.2 16.1 113
Never Summer 10280 -M 11.5 * -M -M *
Old Battle 10000 24.8 18.2 136 26.2 21.4 122
Rawah 9020 10.0 5.9 169 12.3 8.9 138
Sage Creek Basin 7850 11.0 7.8 141 11.6 9.3 125
Sand Lake 10050 19.1 15.8 121 18.3 14.5 126
South Brush Creek 8440 7.0 7.0 100 8.1 9.1 89
Tower 10500 30.0 25.9 116 31.2 24.3 128
Webber Springs 9250 19.4 12.9 150 23.0 16.3 141
Willow Creek Pass 9540 13.1 7.0 187 13.9 8.0 174
Zirkel 9340 27.1 17.2 158 32.5 17.7 184
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Basin Index (%) 133 131
SWEETWATER
Deer Park 9700 17.9 8.4 213 20.9 11.8 177
Larsen Creek 9000 11.9 6.8 175 15.4 -M *
South Pass 9040 16.9 8.3 204 16.3 10.4 157
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Basin Index (%) 199 168
LOWER N. PLATTE
Casper Mtn. 7900 6.4 7.3 88 6.7 8.7 77
Laprele Creek 8375 7.0 5.3 132 6.7 7.2 93
Reno Hill 8400 -M 7.5 * -M 8.6 *
Windy Peak 7900 5.7 4.0 142 6.3 6.2 102
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Basin Index (%) 115 89
LARAMIE RIVER
Brooklyn Lake 10240 16.0 11.7 137 14.7 12.3 120
Cinnabar Park 9574 13.1 12.7 103 15.8 15.2 104
Crow Creek 8330 4.2 5.6 75 5.9 6.3 94
Deadman Hill 10220 14.0 9.3 151 13.7 9.8 140
Rawah 9020 10.0 5.9 169 12.3 8.9 138
Roach 9700 12.3 9.6 128 14.5 11.4 127
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Basin Index (%) 127 120
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 14.0 9.3 151 13.7 9.8 140
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Basin Index (%) 122 122
LITTLE SNAKE RIVER
Battle Mountain 7440 8.8 6.6 133 -M 9.3 *
Divide Peak 8880 13.2 11.6 114 15.5 13.1 118
Elk River 8700 15.7 10.3 152 15.6 12.2 128
Little Snake River 8915 22.6 14.4 157 28.3 19.7 144
Old Battle 10000 24.8 18.2 136 26.2 21.4 122
Sage Creek Basin 7850 11.0 7.8 141 11.6 9.3 125
Sandstone RS 8150 10.7 7.5 143 11.5 11.4 101
Whiskey Park 8950 19.3 15.0 129 22.0 17.0 129
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Basin Index (%) 138 126
UPPER GREEN RIVER
Big Sandy Opening 9080 12.9 7.5 172 15.5 8.0 194
Blind Bull Sum 8650 22.0 13.1 168 -M 12.3 *
East Rim Divide 7930 10.9 6.6 165 13.1 7.4 177
Elkhart Park G.S. 9400 9.7 7.1 137 15.2 8.1 188
Gros Ventre Summit 8750 9.6 8.0 120 13.7 7.8 176
Gunsight Pass 9820 10.2 7.9 129 14.1 8.5 166
Kendall R.S. 7740 12.4 7.5 165 16.6 8.8 189
Loomis Park 8240 15.0 9.2 163 20.1 10.8 186
New Fork Lake 8340 10.1 6.5 155 10.3 6.8 151
Pocket Creek 9360 -M -M * -M -M *
Snider Basin 8060 12.1 7.1 170 16.8 8.8 191
Spring Creek Divide 9000 20.3 13.3 153 22.9 14.7 156
Triple Peak 8500 22.0 12.1 182 23.3 15.2 153
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Basin Index (%) 158 173
LOWER GREEN RIVER
Blacks Fork Jct 8870 8.2 -M * 10.5 -M *
Buck Pasture 9700 13.5 -M * 16.1 -M *
EF Blacks Fork GS 9360 9.2 -M * 9.5 -M *
Hams Fork 7840 11.1 6.8 163 13.1 7.0 187
Hewinta 9519 8.7 5.2 167 10.9 8.2 133
Hickerson Park 9145 5.9 3.5 169 6.1 5.9 103
Hole-in-Rock 9150 4.8 3.8 126 6.6 5.5 120
Indian Creek 9425 21.2 13.8 154 -M 13.4 *
Kelley R.S. 8180 15.2 8.6 177 20.3 11.0 185
Spirit Lk 10235 9.6 -M * 11.1 -M *
Steel Creek Park 10200 11.6 8.2 141 13.3 9.5 140
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Basin Index (%) 157 149
UPPER BEAR RIVER
Bear River RS 8777 9.8 -M * 11.7 -M *
Bug Lake 7950 21.2 9.7 219 18.8 11.9 158
Burts Miller Ranch 8000 5.6 -M * 5.9 -M *
Chalk Creek #1 8993 21.8 12.8 170 -M 15.0 *
Hayden Fork 9212 15.7 8.1 194 -M 12.5 *
Kelley R.S. 8180 15.2 8.6 177 20.3 11.0 185
Lily Lake 9156 10.8 7.1 152 13.0 10.2 127
Monte Cristo 8960 21.8 14.8 147 -M 15.6 *
Salt River Summit 7760 12.2 7.3 167 17.3 10.1 171
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Basin Index (%) 174 161*
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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.