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 SUNDAY: JANUARY 15 , 2017
------------------------------------------------------------------------------
BASIN ELEV. SNOW WATER EQUIVALENT TOTAL PRECIPITATION
Data Site Name (Ft) % %
Current Median Median Current Average Avg
------------------------------------------------------------------------------
WYOMING
SNAKE RIVER
Base Camp 7030 15.2 9.5 160 22.4 12.0 187
Black Bear 8170 21.0 20.5 102 29.9 21.2 141
Blind Bull Sum 8650 21.3 12.2 175 15.9 11.1 143
Cottonwood Creek 7670 14.8 10.2 145 20.9 13.7 153
East Rim Divide 7930 10.1 5.5 184 12.4 6.6 188
Grand Targhee 9260 26.9 21.1 127 25.0 17.9 140
Granite Creek 6770 14.8 8.4 176 20.5 11.6 177
Grassy Lake 7265 21.9 16.4 134 32.8 20.4 161
Gros Ventre Summit 8750 9.3 7.4 126 13.5 7.1 190
Gunsight Pass 9820 10.0 7.3 137 14.0 7.7 182
Lewis Lake Divide 7850 18.8 16.3 115 27.5 20.0 138
Phillips Bench 8200 17.2 14.5 119 26.2 15.6 168
Salt River Summit 7760 11.1 6.1 182 16.5 9.1 181
Snake River Station 6920 13.7 8.9 154 21.6 13.2 164
Spring Creek Divide 9000 19.2 11.8 163 22.5 13.3 169
Thumb Divide 7980 9.8 7.9 124 15.3 10.5 146
Togwotee Pass 9580 17.4 12.9 135 21.2 13.8 154
Two Ocean Plateau 9240 22.9 15.4 149 23.4 15.1 155
Willow Creek 8380 18.5 13.8 134 27.6 18.6 148
Younts Peak 8350 11.9 8.3 143 16.1 9.2 175
----- -----
Basin Index (%) 139 159
MADISON-GALLATIN
Black Bear 8170 21.0 20.5 102 29.9 21.2 141
Canyon 7870 9.2 7.1 130 15.3 9.2 166
Madison Plateau 7750 12.5 12.0 104 21.5 14.9 144
West Yellowstone 6700 7.0 6.1 115 14.6 8.3 176
Whiskey Creek 6800 7.9 8.2 96 15.8 11.5 137
----- -----
Basin Index (%) 107 149
YELLOWSTONE
Beartooth Lake 9360 15.1 12.3 123 11.5 11.0 105
Burnt Mtn 5880 4.5 2.1 214 8.4 7.3 115
Canyon 7870 9.2 7.1 130 15.3 9.2 166
Cole Creek 7850 6.1 7.1 86 5.1 6.9 74
Evening Star 9200 18.1 14.0 129 24.3 15.6 156
Fisher Creek 9100 17.6 18.0 98 22.9 17.9 128
Northeast Entrance 7350 6.4 5.2 123 11.5 7.2 160
Parker Peak 9400 15.8 11.4 139 18.6 9.9 188
Sylvan Lake 8420 12.4 11.1 112 22.7 13.0 175
Thumb Divide 7980 9.8 7.9 124 15.3 10.5 146
Two Ocean Plateau 9240 22.9 15.4 149 23.4 15.1 155
White Mill 8700 14.7 12.5 118 17.6 13.4 131
Wolverine 7650 9.3 5.8 160 12.4 7.2 172
----- -----
Basin Index (%) 125 145
WIND RIVER
Burroughs Creek 8750 11.7 -M * 14.2 -M *
Castle Creek 8400 6.6 -M * 8.6 -M *
Cold Springs 9630 5.8 3.9 149 8.3 5.6 148
Deer Park 9700 17.2 7.2 239 20.8 10.8 193
Hobbs Park 10100 11.7 7.2 162 11.6 6.9 168
Kirwin 9550 9.3 5.2 179 12.3 6.5 189
Little Warm 9370 6.4 5.5 116 11.5 7.1 162
Owl Creek 8975 3.4 2.9 117 5.0 3.2 156
South Pass 9040 16.3 7.6 214 16.0 9.6 167
St. Lawrence Alt 8620 3.0 3.4 88 7.1 4.8 148
Togwotee Pass 9580 17.4 12.9 135 21.2 13.8 154
Townsend Creek 8700 6.1 4.3 142 8.9 6.4 139
----- -----
Basin Index (%) 161 164
BIGHORN BASIN
Bald Mtn. 9380 11.7 9.8 119 10.3 9.4 110
Bear Trap Meadow 8200 2.8 2.9 97 4.3 4.6 93
Bone Springs Div 9350 9.1 8.5 107 9.5 8.4 113
Grave Springs 8550 3.2 4.3 74 4.4 5.8 76
Kirwin 9550 9.3 5.2 179 12.3 6.5 189
Marquette 8760 4.4 -M * 8.0 -M *
Middle Powder 7760 4.1 5.9 69 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 6.2 6.9 90
Shell Creek 9580 9.5 8.2 116 7.7 7.6 101
Timber Creek 7950 3.2 2.5 128 4.6 4.2 110
----- -----
Basin Index (%) 107 109
SHOSHONE RIVER
Blackwater 9780 19.0 12.9 147 22.7 11.6 196
Evening Star 9200 18.1 14.0 129 24.3 15.6 156
Marquette 8760 4.4 -M * 8.0 -M *
Sylvan Road 7120 9.0 6.5 138 19.2 10.5 183
Younts Peak 8350 11.9 8.3 143 16.1 9.2 175
----- -----
Basin Index (%) 139 175
POWDER RIVER
Bear Trap Meadow 8200 2.8 2.9 97 4.3 4.6 93
Cloud Peak Reservoir 9860 6.6 7.2 92 8.4 7.0 120
Grave Springs 8550 3.2 4.3 74 4.4 5.8 76
Hansen Sawmill 8360 4.3 3.5 123 6.1 4.5 136
Middle Powder 7760 4.1 5.9 69 4.8 6.6 73
Powder River Pass 9480 3.4 5.7 60 6.2 6.9 90
Soldier Park 8720 6.9 -M * 6.3 -M *
----- -----
Basin Index (%) 83 97
TONGUE RIVER
Big Goose 7990 4.9 4.3 114 6.0 5.8 103
Bone Springs Div 9350 9.1 8.5 107 9.5 8.4 113
Burgess Junction 7880 5.1 5.7 89 6.3 6.6 95
Dome Lake 8880 6.1 6.0 102 7.6 7.5 101
Little Goose 8870 5.3 -M * 7.4 -M *
Sucker Creek 8880 5.9 6.3 94 6.4 7.6 84
Tie Creek 6870 3.6 2.6 138 6.6 6.4 103
----- -----
Basin Index (%) 104 100
BELLE FOURCHE
Cole Canyon 5910 3.1 2.6 119 4.1 5.1 80
----- -----
Basin Index (%) 119 80
CHEYENNE RIVER BASIN
Blind Park 6890 3.6 4.0 90 4.8 6.9 70
North Rapid Creek 6130 3.8 3.7 103 4.1 5.6 73
----- -----
Basin Index (%) 96 71
UPPER N. PLATTE
Arapaho Ridge 10960 17.7 11.1 159 18.6 12.8 145
Blackhall Mtn 9820 23.3 -M * 24.3 -M *
Columbine 9160 17.5 12.2 143 18.9 13.9 136
Divide Peak 8880 11.9 10.2 117 14.5 11.9 122
Joe Wright 10120 13.5 11.1 122 19.3 14.0 138
Laprele Creek 8375 6.4 4.8 133 6.1 6.7 91
Med Bow 10500 24.3 -M * 23.4 -M *
North French Creek 10130 15.4 13.8 112 17.0 14.5 117
Never Summer 10280 -M 10.5 * -M -M *
Old Battle 10000 22.7 15.5 146 24.8 19.3 128
Rawah 9020 9.3 5.4 172 11.8 8.4 140
Sage Creek Basin 7850 9.6 7.2 133 10.2 8.6 119
Sand Lake 10050 18.2 14.3 127 17.5 13.1 134
South Brush Creek 8440 6.5 6.0 108 7.7 8.3 93
Tower 10500 27.4 22.4 122 30.5 21.9 139
Webber Springs 9250 18.3 11.8 155 21.8 14.6 149
Willow Creek Pass 9540 12.3 6.2 198 13.1 7.4 177
Zirkel 9340 -M 15.6 * 23.0 16.6 139
----- -----
Basin Index (%) 136 133
SWEETWATER
Deer Park 9700 17.2 7.2 239 20.8 10.8 193
Larsen Creek 9000 11.4 6.0 190 14.8 -M *
South Pass 9040 16.3 7.6 214 16.0 9.6 167
----- -----
Basin Index (%) 216 180
LOWER N. PLATTE
Casper Mtn. 7900 5.8 6.7 87 6.1 8.1 75
Laprele Creek 8375 6.4 4.8 133 6.1 6.7 91
Reno Hill 8400 -M 6.6 * -M 8.0 *
Windy Peak 7900 5.0 3.6 139 5.7 5.7 100
----- -----
Basin Index (%) 114 87
LARAMIE RIVER
Brooklyn Lake 10240 15.1 10.6 142 14.1 10.9 129
Cinnabar Park 9574 12.5 11.7 107 15.2 14.2 107
Crow Creek 8330 4.0 4.9 82 5.7 6.0 95
Deadman Hill 10220 13.5 8.1 167 13.4 8.9 151
Rawah 9020 9.3 5.4 172 11.8 8.4 140
Roach 9700 11.5 8.6 134 13.7 10.4 132
----- -----
Basin Index (%) 134 126
S. PLATTE
Black Mountain 8920 6.9 -M * 8.2 -M *
Crow Creek 8330 4.0 4.9 82 5.7 6.0 95
Deadman Hill 10220 13.5 8.1 167 13.4 8.9 151
----- -----
Basin Index (%) 135 128
LITTLE SNAKE RIVER
Battle Mountain 7440 8.0 5.4 148 10.1 8.4 120
Divide Peak 8880 11.9 10.2 117 14.5 11.9 122
Elk River 8700 14.7 9.1 162 14.7 11.0 134
Little Snake River 8915 20.6 12.2 169 26.2 17.8 147
Old Battle 10000 22.7 15.5 146 24.8 19.3 128
Sage Creek Basin 7850 9.6 7.2 133 10.2 8.6 119
Sandstone RS 8150 10.1 6.6 153 10.5 10.3 102
Whiskey Park 8950 17.9 12.8 140 20.6 15.0 137
----- -----
Basin Index (%) 146 129
UPPER GREEN RIVER
Big Sandy Opening 9080 12.3 7.0 176 14.8 7.3 203
Blind Bull Sum 8650 21.3 12.2 175 15.9 11.1 143
East Rim Divide 7930 10.1 5.5 184 12.4 6.6 188
Elkhart Park G.S. 9400 9.1 6.3 144 14.6 7.4 197
Gros Ventre Summit 8750 9.3 7.4 126 13.5 7.1 190
Gunsight Pass 9820 10.0 7.3 137 14.0 7.7 182
Kendall R.S. 7740 11.7 6.5 180 16.0 7.9 203
Loomis Park 8240 14.0 7.7 182 19.3 9.7 199
New Fork Lake 8340 9.3 5.5 169 9.8 6.2 158
Pocket Creek 9360 -M -M * -M -M *
Snider Basin 8060 11.2 6.3 178 15.8 8.0 198
Spring Creek Divide 9000 19.2 11.8 163 22.5 13.3 169
Triple Peak 8500 20.8 11.3 184 23.0 13.6 169
----- -----
Basin Index (%) 167 181
LOWER GREEN RIVER
Blacks Fork Jct 8870 7.5 -M * 9.7 -M *
Buck Pasture 9700 11.7 -M * 14.6 -M *
EF Blacks Fork GS 9360 8.6 -M * 9.4 -M *
Hams Fork 7840 10.1 5.6 180 12.1 6.3 192
Hewinta 9519 7.8 4.9 159 10.2 7.4 138
Hickerson Park 9145 5.5 3.2 172 5.6 5.5 102
Hole-in-Rock 9150 4.4 3.3 133 6.3 5.2 121
Indian Creek 9425 19.8 12.0 165 -M 12.0 *
Kelley R.S. 8180 13.8 7.3 189 18.9 10.0 189
Spirit Lk 10235 8.3 -M * 10.0 -M *
Steel Creek Park 10200 10.8 7.3 148 12.6 8.6 147
----- -----
Basin Index (%) 166 153
UPPER BEAR RIVER
Bear River RS 8777 8.9 -M * 10.8 -M *
Bug Lake 7950 18.9 8.5 222 18.3 10.7 171
Burts Miller Ranch 8000 4.7 -M * 5.2 -M *
Chalk Creek #1 8993 19.4 11.5 169 -M 13.5 *
Hayden Fork 9212 13.9 7.0 199 18.2 11.3 161
Kelley R.S. 8180 13.8 7.3 189 18.9 10.0 189
Lily Lake 9156 10.2 6.4 159 12.0 9.3 129
Monte Cristo 8960 18.7 13.5 139 -M 14.1 *
Salt River Summit 7760 11.1 6.1 182 16.5 9.1 181
----- -----
Basin Index (%) 176 166
-----------------------------------------------------------------------------
-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.
----------------------------------------------------------------------------
-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.