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: FEBRUARY 9 , 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 20.0 11.4 175 26.8 14.8 181
Black Bear 8170 27.5 25.2 109 36.1 26.2 138
Blind Bull Sum 8650 29.2 15.0 195 -M 13.6 *
Cottonwood Creek 7670 19.7 13.7 144 26.1 16.7 156
East Rim Divide 7930 14.5 7.0 207 16.4 8.1 202
Grand Targhee 9260 30.9 24.8 125 29.1 21.8 133
Granite Creek 6770 21.6 11.5 188 24.4 14.3 171
Grassy Lake 7265 28.0 21.9 128 39.1 25.3 155
Gros Ventre Summit 8750 13.3 8.7 153 16.9 8.6 197
Gunsight Pass 9820 14.5 8.7 167 17.7 9.5 186
Lewis Lake Divide 7850 25.7 21.5 120 34.7 24.5 142
Phillips Bench 8200 24.4 16.7 146 31.4 19.3 163
Salt River Summit 7760 15.7 8.4 187 20.9 11.3 185
Snake River Station 6920 17.1 12.0 142 26.0 16.3 160
Spring Creek Divide 9000 26.0 15.6 167 28.2 16.3 173
Thumb Divide 7980 14.6 9.9 147 19.1 12.7 150
Togwotee Pass 9580 23.2 15.6 149 27.0 16.7 162
Two Ocean Plateau 9240 -M 18.8 * -M 18.3 *
Willow Creek 8380 23.9 18.1 132 34.8 22.7 153
Younts Peak 8350 18.0 10.2 176 21.1 11.0 192
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Basin Index (%) 148 161
MADISON-GALLATIN
Black Bear 8170 27.5 25.2 109 36.1 26.2 138
Canyon 7870 12.8 8.7 147 19.1 11.3 169
Madison Plateau 7750 17.4 14.9 117 25.8 18.2 142
West Yellowstone 6700 9.7 7.2 135 17.1 10.2 168
Whiskey Creek 6800 11.3 9.9 114 18.7 14.0 134
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Basin Index (%) 119 146
YELLOWSTONE
Beartooth Lake 9360 21.1 14.7 144 17.1 13.5 127
Burnt Mtn 5880 5.8 2.8 207 10.1 8.3 122
Canyon 7870 12.8 8.7 147 19.1 11.3 169
Cole Creek 7850 7.4 8.8 84 5.7 8.0 71
Evening Star 9200 25.0 16.7 150 29.2 19.0 154
Fisher Creek 9100 25.4 21.8 117 29.8 21.9 136
Northeast Entrance 7350 8.9 6.8 131 14.0 8.7 161
Parker Peak 9400 21.8 13.6 160 22.8 12.0 190
Sylvan Lake 8420 16.9 13.5 125 27.8 15.6 178
Thumb Divide 7980 14.6 9.9 147 19.1 12.7 150
Two Ocean Plateau 9240 -M 18.8 * -M 18.3 *
White Mill 8700 20.6 15.4 134 23.2 16.3 142
Wolverine 7650 -M 7.3 * -M 8.6 *
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Basin Index (%) 136 148
WIND RIVER
Burroughs Creek 8750 16.7 -M * 19.0 -M *
Castle Creek 8400 9.8 -M * 12.0 -M *
Cold Springs 9630 8.9 4.8 185 11.1 6.5 171
Deer Park 9700 21.6 9.5 227 25.1 13.1 192
Hobbs Park 10100 15.3 8.1 189 14.5 8.2 177
Kirwin 9550 13.1 6.1 215 16.0 7.6 211
Little Warm 9370 10.4 6.7 155 15.8 8.6 184
Owl Creek 8975 5.7 3.2 178 7.2 3.7 195
South Pass 9040 20.2 9.8 206 18.9 11.5 164
St. Lawrence Alt 8620 4.8 4.3 112 8.9 5.6 159
Togwotee Pass 9580 23.2 15.6 149 27.0 16.7 162
Townsend Creek 8700 8.2 5.6 146 10.9 7.5 145
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Basin Index (%) 178 175
BIGHORN BASIN
Bald Mtn. 9380 13.9 11.5 121 12.1 11.2 108
Bear Trap Meadow 8200 3.8 3.6 106 5.1 5.3 96
Bone Springs Div 9350 11.7 10.1 116 11.5 10.1 114
Grave Springs 8550 4.2 5.2 81 4.9 6.8 72
Kirwin 9550 13.1 6.1 215 16.0 7.6 211
Marquette 8760 6.3 -M * 10.0 -M *
Middle Powder 7760 5.2 6.7 78 5.4 7.7 70
Owl Creek 8975 5.7 3.2 178 7.2 3.7 195
Powder River Pass 9480 4.8 6.9 70 7.6 8.2 93
Shell Creek 9580 11.5 9.6 120 8.8 9.3 95
Timber Creek 7950 4.5 3.1 145 5.7 4.7 121
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Basin Index (%) 119 113
SHOSHONE RIVER
Blackwater 9780 25.4 15.1 168 28.8 13.9 207
Evening Star 9200 25.0 16.7 150 29.2 19.0 154
Marquette 8760 6.3 -M * 10.0 -M *
Sylvan Road 7120 12.8 8.1 158 23.0 12.4 185
Younts Peak 8350 18.0 10.2 176 21.1 11.0 192
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Basin Index (%) 162 181
POWDER RIVER
Bear Trap Meadow 8200 3.8 3.6 106 5.1 5.3 96
Cloud Peak Reservoir 9860 8.6 8.9 97 10.1 8.3 122
Grave Springs 8550 4.2 5.2 81 4.9 6.8 72
Hansen Sawmill 8360 6.0 4.1 146 7.8 5.3 147
Middle Powder 7760 5.2 6.7 78 5.4 7.7 70
Powder River Pass 9480 4.8 6.9 70 7.6 8.2 93
Soldier Park 8720 9.4 -M * 7.8 -M *
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Basin Index (%) 92 98
TONGUE RIVER
Big Goose 7990 6.4 5.2 123 7.3 6.8 107
Bone Springs Div 9350 11.7 10.1 116 11.5 10.1 114
Burgess Junction 7880 6.9 7.1 97 7.8 7.8 100
Dome Lake 8880 7.9 7.3 108 9.3 8.7 107
Little Goose 8870 6.9 -M * 9.1 -M *
Sucker Creek 8880 7.8 7.5 104 7.8 9.1 86
Tie Creek 6870 4.7 3.6 131 8.0 7.4 108
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Basin Index (%) 111 104
BELLE FOURCHE
Cole Canyon 5910 3.6 3.8 95 4.7 6.1 77
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Basin Index (%) 95 77
CHEYENNE RIVER BASIN
Blind Park 6890 4.7 5.3 89 5.8 8.1 72
North Rapid Creek 6130 4.7 4.8 98 5.1 6.6 77
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Basin Index (%) 93 74
UPPER N. PLATTE
Arapaho Ridge 10960 20.8 14.0 149 21.3 15.1 141
Blackhall Mtn 9820 27.9 -M * 28.7 -M *
Columbine 9160 20.8 15.8 132 22.8 17.3 132
Divide Peak 8880 13.9 13.4 104 16.4 14.5 113
Joe Wright 10120 15.5 13.4 116 21.8 16.8 130
Laprele Creek 8375 8.4 5.8 145 7.7 7.9 97
Med Bow 10500 28.0 -M * 26.2 -M *
North French Creek 10130 17.9 17.1 105 19.4 17.7 110
Never Summer 10280 17.7 13.2 134 14.7 -M *
Old Battle 10000 27.4 20.6 133 28.9 23.7 122
Rawah 9020 10.4 6.8 153 13.2 9.5 139
Sage Creek Basin 7850 11.5 9.0 128 11.9 10.4 114
Sand Lake 10050 20.9 17.4 120 19.8 15.9 125
South Brush Creek 8440 7.6 7.6 100 9.0 10.0 90
Tower 10500 33.6 29.9 112 36.1 26.9 134
Webber Springs 9250 22.1 15.2 145 25.8 17.9 144
Willow Creek Pass 9540 -M 8.1 * -M 8.7 *
Zirkel 9340 32.4 19.5 166 33.5 20.2 166
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Basin Index (%) 128 129
SWEETWATER
Deer Park 9700 21.6 9.5 227 25.1 13.1 192
Larsen Creek 9000 15.3 7.9 194 17.9 -M *
South Pass 9040 20.2 9.8 206 18.9 11.5 164
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Basin Index (%) 210 179
LOWER N. PLATTE
Casper Mtn. 7900 7.4 8.1 91 7.2 9.5 76
Laprele Creek 8375 8.4 5.8 145 7.7 7.9 97
Reno Hill 8400 8.2 8.2 100 8.6 9.4 91
Windy Peak 7900 6.8 4.4 155 7.1 6.6 108
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Basin Index (%) 116 92
LARAMIE RIVER
Brooklyn Lake 10240 18.2 12.6 144 16.4 13.6 121
Cinnabar Park 9574 14.3 13.9 103 17.1 16.9 101
Crow Creek 8330 4.2 5.8 72 6.1 6.7 91
Deadman Hill 10220 15.7 10.7 147 15.2 10.8 141
Rawah 9020 10.4 6.8 153 13.2 9.5 139
Roach 9700 13.6 10.6 128 16.1 12.5 129
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Basin Index (%) 126 120
S. PLATTE
Black Mountain 8920 7.5 -M * 8.6 -M *
Crow Creek 8330 4.2 5.8 72 6.1 6.7 91
Deadman Hill 10220 15.7 10.7 147 15.2 10.8 141
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Basin Index (%) 121 122
LITTLE SNAKE RIVER
Battle Mountain 7440 8.6 7.6 113 12.0 10.2 118
Divide Peak 8880 13.9 13.4 104 16.4 14.5 113
Elk River 8700 16.1 12.4 130 16.0 13.5 119
Little Snake River 8915 24.4 16.8 145 30.0 21.9 137
Old Battle 10000 27.4 20.6 133 28.9 23.7 122
Sage Creek Basin 7850 11.5 9.0 128 11.9 10.4 114
Sandstone RS 8150 10.8 8.8 123 12.0 12.7 94
Whiskey Park 8950 21.0 17.2 122 23.3 18.9 123
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Basin Index (%) 126 120
UPPER GREEN RIVER
Big Sandy Opening 9080 15.9 8.6 185 18.0 8.8 205
Blind Bull Sum 8650 29.2 15.0 195 -M 13.6 *
East Rim Divide 7930 14.5 7.0 207 16.4 8.1 202
Elkhart Park G.S. 9400 13.2 7.9 167 17.8 8.9 200
Gros Ventre Summit 8750 13.3 8.7 153 16.9 8.6 197
Gunsight Pass 9820 14.5 8.7 167 17.7 9.5 186
Kendall R.S. 7740 17.7 8.2 216 19.1 9.8 195
Loomis Park 8240 20.1 10.1 199 23.2 11.9 195
New Fork Lake 8340 13.5 7.0 193 13.5 7.5 180
Pocket Creek 9360 -M -M * -M -M *
Snider Basin 8060 15.3 8.3 184 19.8 9.8 202
Spring Creek Divide 9000 26.0 15.6 167 28.2 16.3 173
Triple Peak 8500 26.7 14.2 188 25.7 16.9 152
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Basin Index (%) 184 186
LOWER GREEN RIVER
Blacks Fork Jct 8870 8.6 -M * 11.0 -M *
Buck Pasture 9700 14.4 -M * 17.0 -M *
EF Blacks Fork GS 9360 11.9 -M * -M -M *
Hams Fork 7840 13.8 7.7 179 15.1 7.7 196
Hewinta 9519 8.9 6.3 141 11.4 9.1 125
Hickerson Park 9145 6.2 4.2 148 6.5 6.5 100
Hole-in-Rock 9150 5.2 4.3 121 7.1 6.0 118
Indian Creek 9425 26.1 15.4 169 -M 14.9 *
Kelley R.S. 8180 17.8 9.5 187 23.1 12.2 189
Spirit Lk 10235 10.1 -M * 11.8 -M *
Steel Creek Park 10200 12.1 9.4 129 13.9 10.5 132
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Basin Index (%) 159 148
UPPER BEAR RIVER
Bear River RS 8777 10.5 -M * 12.4 -M *
Bug Lake 7950 25.2 12.1 208 23.2 13.1 177
Burts Miller Ranch 8000 5.7 -M * 6.3 -M *
Chalk Creek #1 8993 24.0 14.3 168 25.4 16.6 153
Hayden Fork 9212 16.8 9.3 181 -M 13.9 *
Kelley R.S. 8180 17.8 9.5 187 23.1 12.2 189
Lily Lake 9156 11.9 7.8 153 13.9 11.3 123
Monte Cristo 8960 24.8 17.0 146 -M 17.3 *
Salt River Summit 7760 15.7 8.4 187 20.9 11.3 185
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Basin Index (%) 174 165
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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.