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 MONDAY: JANUARY 16 , 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 9.6 158 22.4 12.1 185
Black Bear 8170 21.0 20.7 101 30.0 21.4 140
Blind Bull Sum 8650 21.2 12.2 174 15.8 11.2 141
Cottonwood Creek 7670 14.7 10.4 141 20.9 13.8 151
East Rim Divide 7930 10.1 5.6 180 12.4 6.7 185
Grand Targhee 9260 27.0 21.2 127 25.1 18.0 139
Granite Creek 6770 14.7 8.6 171 20.5 11.7 175
Grassy Lake 7265 21.9 16.5 133 32.8 20.7 158
Gros Ventre Summit 8750 9.3 7.4 126 13.5 7.2 188
Gunsight Pass 9820 10.0 7.3 137 14.0 7.7 182
Lewis Lake Divide 7850 18.8 16.5 114 27.7 20.1 138
Phillips Bench 8200 17.2 14.7 117 26.2 15.8 166
Salt River Summit 7760 11.0 6.3 175 16.5 9.2 179
Snake River Station 6920 13.7 9.0 152 21.7 13.4 162
Spring Creek Divide 9000 19.1 12.0 159 22.4 13.4 167
Thumb Divide 7980 9.8 7.9 124 15.3 10.7 143
Togwotee Pass 9580 17.5 13.0 135 21.2 13.9 153
Two Ocean Plateau 9240 22.9 15.5 148 23.5 15.3 154
Willow Creek 8380 18.4 14.0 131 27.6 18.8 147
Younts Peak 8350 12.0 8.4 143 16.2 9.2 176
----- -----
Basin Index (%) 137 157
MADISON-GALLATIN
Black Bear 8170 21.0 20.7 101 30.0 21.4 140
Canyon 7870 9.2 7.2 128 15.3 9.3 165
Madison Plateau 7750 12.6 12.2 103 21.5 15.1 142
West Yellowstone 6700 7.0 6.2 113 14.6 8.4 174
Whiskey Creek 6800 7.9 8.3 95 15.8 11.6 136
----- -----
Basin Index (%) 106 148
YELLOWSTONE
Beartooth Lake 9360 15.0 12.4 121 11.4 11.1 103
Burnt Mtn 5880 4.5 2.1 214 8.4 7.4 114
Canyon 7870 9.2 7.2 128 15.3 9.3 165
Cole Creek 7850 6.1 7.2 85 5.1 7.0 73
Evening Star 9200 18.1 14.0 129 24.4 15.8 154
Fisher Creek 9100 17.7 18.2 97 22.9 18.0 127
Northeast Entrance 7350 6.4 5.3 121 11.5 7.2 160
Parker Peak 9400 15.8 11.5 137 18.6 10.0 186
Sylvan Lake 8420 12.4 11.2 111 22.7 13.1 173
Thumb Divide 7980 9.8 7.9 124 15.3 10.7 143
Two Ocean Plateau 9240 22.9 15.5 148 23.5 15.3 154
White Mill 8700 14.7 12.6 117 17.7 13.5 131
Wolverine 7650 9.3 5.9 158 12.4 7.3 170
----- -----
Basin Index (%) 124 144
WIND RIVER
Burroughs Creek 8750 11.7 -M * 14.2 -M *
Castle Creek 8400 6.6 -M * 8.6 -M *
Cold Springs 9630 5.9 4.0 148 8.4 5.7 147
Deer Park 9700 17.2 7.2 239 20.8 10.8 193
Hobbs Park 10100 11.7 7.3 160 11.7 7.0 167
Kirwin 9550 9.3 5.3 175 12.3 6.6 186
Little Warm 9370 6.3 5.6 112 11.5 7.2 160
Owl Creek 8975 3.5 2.9 121 5.1 3.2 159
South Pass 9040 16.3 7.7 212 16.0 9.7 165
St. Lawrence Alt 8620 3.0 3.5 86 7.1 4.8 148
Togwotee Pass 9580 17.5 13.0 135 21.2 13.9 153
Townsend Creek 8700 6.2 4.4 141 9.0 6.5 138
----- -----
Basin Index (%) 159 163
BIGHORN BASIN
Bald Mtn. 9380 11.7 9.9 118 10.4 9.5 109
Bear Trap Meadow 8200 2.8 2.9 97 4.3 4.6 93
Bone Springs Div 9350 9.1 8.6 106 9.5 8.4 113
Grave Springs 8550 3.2 4.4 73 4.4 5.8 76
Kirwin 9550 9.3 5.3 175 12.3 6.6 186
Marquette 8760 4.5 -M * 8.0 -M *
Middle Powder 7760 4.1 6.0 68 4.8 6.7 72
Owl Creek 8975 3.5 2.9 121 5.1 3.2 159
Powder River Pass 9480 3.4 5.8 59 6.2 7.0 89
Shell Creek 9580 9.6 8.3 116 7.8 7.7 101
Timber Creek 7950 3.2 2.5 128 4.6 4.2 110
----- -----
Basin Index (%) 106 109
SHOSHONE RIVER
Blackwater 9780 19.0 12.9 147 22.7 11.7 194
Evening Star 9200 18.1 14.0 129 24.4 15.8 154
Marquette 8760 4.5 -M * 8.0 -M *
Sylvan Road 7120 9.0 6.6 136 19.3 10.6 182
Younts Peak 8350 12.0 8.4 143 16.2 9.2 176
----- -----
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 7.1 118
Grave Springs 8550 3.2 4.4 73 4.4 5.8 76
Hansen Sawmill 8360 4.3 3.5 123 6.1 4.5 136
Middle Powder 7760 4.1 6.0 68 4.8 6.7 72
Powder River Pass 9480 3.4 5.8 59 6.2 7.0 89
Soldier Park 8720 7.0 -M * 6.3 -M *
----- -----
Basin Index (%) 82 96
TONGUE RIVER
Big Goose 7990 4.9 4.3 114 6.0 5.9 102
Bone Springs Div 9350 9.1 8.6 106 9.5 8.4 113
Burgess Junction 7880 5.1 5.8 88 6.3 6.7 94
Dome Lake 8880 6.1 6.1 100 7.6 7.5 101
Little Goose 8870 5.3 -M * 7.5 -M *
Sucker Creek 8880 6.0 6.3 95 6.5 7.7 84
Tie Creek 6870 3.6 2.7 133 6.6 6.4 103
----- -----
Basin Index (%) 103 100
BELLE FOURCHE
Cole Canyon 5910 3.2 2.7 119 4.1 5.1 80
----- -----
Basin Index (%) 119 80
CHEYENNE RIVER BASIN
Blind Park 6890 3.6 4.0 90 4.8 7.0 69
North Rapid Creek 6130 3.9 3.7 105 4.2 5.7 74
----- -----
Basin Index (%) 97 71
UPPER N. PLATTE
Arapaho Ridge 10960 17.7 11.2 158 18.6 12.8 145
Blackhall Mtn 9820 23.4 -M * 24.4 -M *
Columbine 9160 17.6 12.4 142 19.0 14.1 135
Divide Peak 8880 11.9 10.4 114 14.5 12.0 121
Joe Wright 10120 13.8 11.2 123 19.3 14.1 137
Laprele Creek 8375 6.5 4.9 133 6.2 6.7 93
Med Bow 10500 24.4 -M * 23.4 -M *
North French Creek 10130 15.4 13.9 111 17.0 14.6 116
Never Summer 10280 -M 10.5 * -M -M *
Old Battle 10000 22.7 15.6 146 24.8 19.5 127
Rawah 9020 9.3 5.4 172 11.8 8.4 140
Sage Creek Basin 7850 9.6 7.3 132 10.2 8.7 117
Sand Lake 10050 18.2 14.4 126 17.6 13.2 133
South Brush Creek 8440 6.5 6.1 107 7.7 8.4 92
Tower 10500 27.4 22.6 121 30.6 22.1 138
Webber Springs 9250 18.3 11.9 154 22.0 14.8 149
Willow Creek Pass 9540 12.4 6.2 200 13.1 7.4 177
Zirkel 9340 -M 15.8 * 23.1 16.6 139
----- -----
Basin Index (%) 135 132
SWEETWATER
Deer Park 9700 17.2 7.2 239 20.8 10.8 193
Larsen Creek 9000 11.5 6.1 189 15.0 -M *
South Pass 9040 16.3 7.7 212 16.0 9.7 165
----- -----
Basin Index (%) 214 180
LOWER N. PLATTE
Casper Mtn. 7900 5.8 6.7 87 6.1 8.2 74
Laprele Creek 8375 6.5 4.9 133 6.2 6.7 93
Reno Hill 8400 -M 6.6 * -M 8.0 *
Windy Peak 7900 5.0 3.6 139 5.8 5.8 100
----- -----
Basin Index (%) 114 87
LARAMIE RIVER
Brooklyn Lake 10240 15.2 10.7 142 14.1 11.1 127
Cinnabar Park 9574 12.5 11.7 107 15.3 14.2 108
Crow Creek 8330 4.1 5.0 82 5.7 6.0 95
Deadman Hill 10220 13.6 8.2 166 13.4 9.0 149
Rawah 9020 9.3 5.4 172 11.8 8.4 140
Roach 9700 11.5 8.7 132 13.7 10.4 132
----- -----
Basin Index (%) 133 125
S. PLATTE
Black Mountain 8920 6.9 -M * 8.2 -M *
Crow Creek 8330 4.1 5.0 82 5.7 6.0 95
Deadman Hill 10220 13.6 8.2 166 13.4 9.0 149
----- -----
Basin Index (%) 134 127
LITTLE SNAKE RIVER
Battle Mountain 7440 8.0 5.6 143 -M 8.5 *
Divide Peak 8880 11.9 10.4 114 14.5 12.0 121
Elk River 8700 14.7 9.2 160 14.7 11.1 132
Little Snake River 8915 20.6 12.3 167 26.3 17.8 148
Old Battle 10000 22.7 15.6 146 24.8 19.5 127
Sage Creek Basin 7850 9.6 7.3 132 10.2 8.7 117
Sandstone RS 8150 10.1 6.7 151 10.6 10.4 102
Whiskey Park 8950 18.0 13.2 136 20.7 15.1 137
----- -----
Basin Index (%) 144 129
UPPER GREEN RIVER
Big Sandy Opening 9080 12.2 7.0 174 14.8 7.4 200
Blind Bull Sum 8650 21.2 12.2 174 15.8 11.2 141
East Rim Divide 7930 10.1 5.6 180 12.4 6.7 185
Elkhart Park G.S. 9400 9.2 6.4 144 14.6 7.5 195
Gros Ventre Summit 8750 9.3 7.4 126 13.5 7.2 188
Gunsight Pass 9820 10.0 7.3 137 14.0 7.7 182
Kendall R.S. 7740 11.8 6.5 182 16.0 8.0 200
Loomis Park 8240 14.0 7.8 179 19.3 9.8 197
New Fork Lake 8340 9.3 5.6 166 9.8 6.2 158
Pocket Creek 9360 -M -M * -M -M *
Snider Basin 8060 11.2 6.4 175 15.8 8.0 198
Spring Creek Divide 9000 19.1 12.0 159 22.4 13.4 167
Triple Peak 8500 20.8 11.4 182 23.0 13.8 167
----- -----
Basin Index (%) 165 179
LOWER GREEN RIVER
Blacks Fork Jct 8870 7.5 -M * 9.7 -M *
Buck Pasture 9700 11.8 -M * 14.7 -M *
EF Blacks Fork GS 9360 8.6 -M * 9.4 -M *
Hams Fork 7840 10.0 5.7 175 12.1 6.4 189
Hewinta 9519 7.8 4.9 159 10.2 7.5 136
Hickerson Park 9145 5.5 3.2 172 5.7 5.6 102
Hole-in-Rock 9150 4.4 3.4 129 6.3 5.2 121
Indian Creek 9425 19.7 12.2 161 -M 12.1 *
Kelley R.S. 8180 13.7 7.4 185 18.9 10.1 187
Spirit Lk 10235 8.3 -M * 10.0 -M *
Steel Creek Park 10200 10.8 7.3 148 12.6 8.7 145
----- -----
Basin Index (%) 163 151
UPPER BEAR RIVER
Bear River RS 8777 8.9 -M * 10.8 -M *
Bug Lake 7950 19.0 8.6 221 18.4 10.8 170
Burts Miller Ranch 8000 4.8 -M * 5.2 -M *
Chalk Creek #1 8993 19.4 11.6 167 -M 13.7 *
Hayden Fork 9212 13.8 7.1 194 18.2 11.4 160
Kelley R.S. 8180 13.7 7.4 185 18.9 10.1 187
Lily Lake 9156 10.1 6.5 155 12.1 9.4 129
Monte Cristo 8960 18.7 13.6 138 18.6 14.2 131
Salt River Summit 7760 11.0 6.3 175 16.5 9.2 179
----- -----
Basin Index (%) 173 158
-----------------------------------------------------------------------------
-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.