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: FEBRUARY 10 , 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 20.8 11.5 181 -M 14.9 *
Black Bear 8170 -M 25.6 * 37.4 26.5 141
Blind Bull Sum 8650 31.1 15.1 206 -M 13.7 *
Cottonwood Creek 7670 20.1 13.8 146 27.2 16.9 161
East Rim Divide 7930 15.7 7.0 224 16.9 8.2 206
Grand Targhee 9260 31.8 25.0 127 30.0 22.1 136
Granite Creek 6770 23.7 11.6 204 25.4 14.5 175
Grassy Lake 7265 -M 22.2 * 41.3 25.6 161
Gros Ventre Summit 8750 13.9 8.7 160 17.8 8.7 205
Gunsight Pass 9820 15.3 8.8 174 18.4 9.5 194
Lewis Lake Divide 7850 27.8 21.8 128 -M 24.8 *
Phillips Bench 8200 -M 16.9 * -M 19.5 *
Salt River Summit 7760 16.2 8.5 191 21.7 11.4 190
Snake River Station 6920 17.2 12.2 141 27.9 16.4 170
Spring Creek Divide 9000 27.1 15.7 173 28.8 16.5 175
Thumb Divide 7980 16.1 10.0 161 20.3 12.9 157
Togwotee Pass 9580 24.2 15.7 154 28.0 16.9 166
Two Ocean Plateau 9240 -M 18.9 * -M 18.5 *
Willow Creek 8380 25.1 18.2 138 35.6 23.0 155
Younts Peak 8350 19.7 10.2 193 22.7 11.1 205
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Basin Index (%) 162 166
MADISON-GALLATIN
Black Bear 8170 -M 25.6 * 37.4 26.5 141
Canyon 7870 13.4 8.7 154 19.8 11.5 172
Madison Plateau 7750 19.3 15.1 128 26.8 18.4 146
West Yellowstone 6700 9.5 7.3 130 17.7 10.3 172
Whiskey Creek 6800 11.7 10.0 117 19.6 14.1 139
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Basin Index (%) 131 150
YELLOWSTONE
Beartooth Lake 9360 -M 14.8 * -M 13.7 *
Burnt Mtn 5880 5.2 2.9 179 10.1 8.4 120
Canyon 7870 13.4 8.7 154 19.8 11.5 172
Cole Creek 7850 7.3 8.8 83 5.8 8.1 72
Evening Star 9200 26.4 16.7 158 29.4 19.2 153
Fisher Creek 9100 -M 22.0 * 31.8 22.1 144
Northeast Entrance 7350 9.3 6.9 135 14.8 8.8 168
Parker Peak 9400 22.9 13.7 167 22.9 12.1 189
Sylvan Lake 8420 17.6 13.5 130 28.3 15.7 180
Thumb Divide 7980 16.1 10.0 161 20.3 12.9 157
Two Ocean Plateau 9240 -M 18.9 * -M 18.5 *
White Mill 8700 21.8 15.6 140 24.0 16.5 145
Wolverine 7650 -M 7.4 * -M 8.7 *
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Basin Index (%) 145 153
WIND RIVER
Burroughs Creek 8750 18.0 -M * 19.9 -M *
Castle Creek 8400 10.1 -M * 12.4 -M *
Cold Springs 9630 9.1 4.8 190 -M 6.5 *
Deer Park 9700 21.6 9.5 227 25.2 13.2 191
Hobbs Park 10100 15.6 8.1 193 14.8 8.2 180
Kirwin 9550 13.7 6.1 225 16.6 7.6 218
Little Warm 9370 10.9 6.7 163 -M 8.7 *
Owl Creek 8975 5.8 3.2 181 7.3 3.7 197
South Pass 9040 20.3 9.8 207 18.9 11.6 163
St. Lawrence Alt 8620 5.1 4.3 119 9.2 5.6 164
Togwotee Pass 9580 24.2 15.7 154 28.0 16.9 166
Townsend Creek 8700 8.2 5.7 144 11.0 7.5 147
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Basin Index (%) 182 176
BIGHORN BASIN
Bald Mtn. 9380 13.9 11.7 119 12.3 11.4 108
Bear Trap Meadow 8200 3.9 3.6 108 5.2 5.4 96
Bone Springs Div 9350 11.7 10.1 116 11.8 10.2 116
Grave Springs 8550 4.3 5.2 83 5.0 6.8 74
Kirwin 9550 13.7 6.1 225 16.6 7.6 218
Marquette 8760 6.3 -M * 10.2 -M *
Middle Powder 7760 5.1 6.8 75 5.6 7.8 72
Owl Creek 8975 5.8 3.2 181 7.3 3.7 197
Powder River Pass 9480 4.8 6.9 70 7.8 8.3 94
Shell Creek 9580 11.6 9.6 121 9.0 9.4 96
Timber Creek 7950 4.5 3.1 145 5.8 4.7 123
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Basin Index (%) 120 115
SHOSHONE RIVER
Blackwater 9780 26.5 15.1 175 29.1 14.0 208
Evening Star 9200 26.4 16.7 158 29.4 19.2 153
Marquette 8760 6.3 -M * 10.2 -M *
Sylvan Road 7120 13.1 8.2 160 23.9 12.5 191
Younts Peak 8350 19.7 10.2 193 22.7 11.1 205
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Basin Index (%) 171 185
POWDER RIVER
Bear Trap Meadow 8200 3.9 3.6 108 5.2 5.4 96
Cloud Peak Reservoir 9860 8.7 9.0 97 10.3 8.4 123
Grave Springs 8550 4.3 5.2 83 5.0 6.8 74
Hansen Sawmill 8360 6.0 4.2 143 7.9 5.3 149
Middle Powder 7760 5.1 6.8 75 5.6 7.8 72
Powder River Pass 9480 4.8 6.9 70 7.8 8.3 94
Soldier Park 8720 9.4 -M * 7.8 -M *
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Basin Index (%) 92 100
TONGUE RIVER
Big Goose 7990 6.4 5.3 121 7.3 7.0 104
Bone Springs Div 9350 11.7 10.1 116 11.8 10.2 116
Burgess Junction 7880 6.9 7.1 97 7.9 7.9 100
Dome Lake 8880 8.0 7.3 110 9.4 8.8 107
Little Goose 8870 7.0 -M * 9.2 -M *
Sucker Creek 8880 7.8 7.5 104 7.8 9.2 85
Tie Creek 6870 4.6 3.6 128 8.0 7.5 107
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Basin Index (%) 111 103
BELLE FOURCHE
Cole Canyon 5910 3.6 3.9 92 4.7 6.2 76
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Basin Index (%) 92 76
CHEYENNE RIVER BASIN
Blind Park 6890 4.8 5.3 91 5.9 8.2 72
North Rapid Creek 6130 4.7 4.9 96 5.3 6.6 80
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Basin Index (%) 93 76
UPPER N. PLATTE
Arapaho Ridge 10960 21.0 14.0 150 21.5 15.2 141
Blackhall Mtn 9820 28.7 -M * 29.0 -M *
Columbine 9160 21.1 16.0 132 23.1 17.5 132
Divide Peak 8880 13.9 13.5 103 16.5 14.6 113
Joe Wright 10120 15.6 13.5 116 22.4 17.0 132
Laprele Creek 8375 8.6 5.9 146 7.8 8.1 96
Med Bow 10500 28.7 -M * 26.9 -M *
North French Creek 10130 18.2 17.3 105 19.7 17.9 110
Never Summer 10280 17.7 13.2 134 14.7 -M *
Old Battle 10000 27.9 20.8 134 29.3 24.0 122
Rawah 9020 10.3 6.9 149 13.3 9.5 140
Sage Creek Basin 7850 11.7 9.0 130 11.9 10.5 113
Sand Lake 10050 21.5 17.6 122 20.1 16.0 126
South Brush Creek 8440 7.8 7.6 103 9.2 10.1 91
Tower 10500 34.0 30.3 112 36.5 27.2 134
Webber Springs 9250 22.7 15.4 147 26.3 18.1 145
Willow Creek Pass 9540 -M 8.1 * -M 8.8 *
Zirkel 9340 33.2 19.6 169 34.8 20.3 171
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Basin Index (%) 129 129
SWEETWATER
Deer Park 9700 21.6 9.5 227 25.2 13.2 191
Larsen Creek 9000 15.4 8.0 192 17.9 -M *
South Pass 9040 20.3 9.8 207 18.9 11.6 163
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Basin Index (%) 210 178
LOWER N. PLATTE
Casper Mtn. 7900 7.5 8.1 93 7.3 9.6 76
Laprele Creek 8375 8.6 5.9 146 7.8 8.1 96
Reno Hill 8400 8.3 8.2 101 8.8 9.5 93
Windy Peak 7900 6.8 4.5 151 7.2 6.7 107
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Basin Index (%) 117 92
LARAMIE RIVER
Brooklyn Lake 10240 18.9 12.7 149 17.1 13.7 125
Cinnabar Park 9574 14.7 14.1 104 17.4 17.0 102
Crow Creek 8330 4.2 5.8 72 6.1 6.7 91
Deadman Hill 10220 15.9 10.8 147 15.3 10.9 140
Rawah 9020 10.3 6.9 149 13.3 9.5 140
Roach 9700 13.7 10.7 128 16.2 12.6 129
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Basin Index (%) 127 121
S. PLATTE
Black Mountain 8920 7.5 -M * 8.7 -M *
Crow Creek 8330 4.2 5.8 72 6.1 6.7 91
Deadman Hill 10220 15.9 10.8 147 15.3 10.9 140
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Basin Index (%) 121 122
LITTLE SNAKE RIVER
Battle Mountain 7440 8.4 7.7 109 12.1 10.3 117
Divide Peak 8880 13.9 13.5 103 16.5 14.6 113
Elk River 8700 16.0 12.5 128 16.1 13.6 118
Little Snake River 8915 24.9 17.0 146 30.7 22.1 139
Old Battle 10000 27.9 20.8 134 29.3 24.0 122
Sage Creek Basin 7850 11.7 9.0 130 11.9 10.5 113
Sandstone RS 8150 10.6 8.9 119 12.0 12.8 94
Whiskey Park 8950 22.0 17.4 126 23.4 19.2 122
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Basin Index (%) 127 120
UPPER GREEN RIVER
Big Sandy Opening 9080 16.0 8.7 184 18.0 8.8 205
Blind Bull Sum 8650 31.1 15.1 206 -M 13.7 *
East Rim Divide 7930 15.7 7.0 224 16.9 8.2 206
Elkhart Park G.S. 9400 13.8 8.0 172 18.3 9.0 203
Gros Ventre Summit 8750 13.9 8.7 160 17.8 8.7 205
Gunsight Pass 9820 15.3 8.8 174 18.4 9.5 194
Kendall R.S. 7740 17.3 8.3 208 -M 9.9 *
Loomis Park 8240 21.3 10.2 209 23.3 12.0 194
New Fork Lake 8340 13.9 7.1 196 13.8 7.5 184
Pocket Creek 9360 -M -M * -M -M *
Snider Basin 8060 -M 8.4 * 20.4 9.9 206
Spring Creek Divide 9000 27.1 15.7 173 28.8 16.5 175
Triple Peak 8500 28.9 14.4 201 28.7 17.1 168
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Basin Index (%) 191 191
LOWER GREEN RIVER
Blacks Fork Jct 8870 8.5 -M * 11.0 -M *
Buck Pasture 9700 14.4 -M * 17.0 -M *
EF Blacks Fork GS 9360 11.9 -M * 9.8 -M *
Hams Fork 7840 13.3 7.8 171 15.2 7.8 195
Hewinta 9519 8.8 6.4 138 11.0 9.2 120
Hickerson Park 9145 6.1 4.3 142 6.5 6.5 100
Hole-in-Rock 9150 5.2 4.3 121 7.1 6.1 116
Indian Creek 9425 26.7 15.6 171 -M 15.1 *
Kelley R.S. 8180 18.3 9.6 191 23.3 12.4 188
Spirit Lk 10235 10.2 -M * 11.8 -M *
Steel Creek Park 10200 12.2 9.5 128 13.9 10.6 131
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Basin Index (%) 158 146
UPPER BEAR RIVER
Bear River RS 8777 10.2 -M * 12.3 -M *
Bug Lake 7950 25.2 12.2 207 23.7 13.2 180
Burts Miller Ranch 8000 5.3 -M * 6.3 -M *
Chalk Creek #1 8993 24.1 14.6 165 25.5 16.7 153
Hayden Fork 9212 16.6 9.5 175 21.7 14.0 155
Kelley R.S. 8180 18.3 9.6 191 23.3 12.4 188
Lily Lake 9156 12.3 8.0 154 13.8 11.3 122
Monte Cristo 8960 24.8 17.2 144 -M 17.4 *
Salt River Summit 7760 16.2 8.5 191 21.7 11.4 190
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Basin Index (%) 173 164
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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.