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 TUESDAY: JANUARY 17 , 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 9.7 157 22.5 12.3 183
Black Bear 8170 21.1 20.9 101 30.2 21.7 139
Blind Bull Sum 8650 21.2 12.3 172 15.9 11.3 141
Cottonwood Creek 7670 14.7 10.6 139 20.8 13.9 150
East Rim Divide 7930 10.1 5.7 177 12.4 6.8 182
Grand Targhee 9260 27.0 21.2 127 25.2 18.0 140
Granite Creek 6770 14.7 8.7 169 20.5 11.8 174
Grassy Lake 7265 21.9 16.7 131 32.9 20.9 157
Gros Ventre Summit 8750 9.3 7.5 124 13.5 7.3 185
Gunsight Pass 9820 10.0 7.4 135 14.0 7.8 179
Lewis Lake Divide 7850 18.9 16.6 114 27.8 20.4 136
Phillips Bench 8200 17.2 15.0 115 26.3 16.0 164
Salt River Summit 7760 11.0 6.4 172 16.6 9.3 178
Snake River Station 6920 13.7 9.1 151 21.7 13.5 161
Spring Creek Divide 9000 19.2 12.2 157 22.4 13.6 165
Thumb Divide 7980 9.8 8.0 122 15.3 10.8 142
Togwotee Pass 9580 17.6 13.0 135 21.3 14.1 151
Two Ocean Plateau 9240 22.9 15.5 148 23.5 15.4 153
Willow Creek 8380 18.4 14.3 129 27.7 19.0 146
Younts Peak 8350 12.1 8.5 142 16.3 9.4 173
----- -----
Basin Index (%) 136 156
MADISON-GALLATIN
Black Bear 8170 21.1 20.9 101 30.2 21.7 139
Canyon 7870 9.1 7.3 125 15.3 9.4 163
Madison Plateau 7750 12.6 12.5 101 21.9 15.2 144
West Yellowstone 6700 7.0 6.3 111 14.6 8.4 174
Whiskey Creek 6800 7.9 8.4 94 15.9 11.8 135
----- -----
Basin Index (%) 104 147
YELLOWSTONE
Beartooth Lake 9360 15.1 12.5 121 11.5 11.3 102
Burnt Mtn 5880 4.5 2.2 205 8.4 7.4 114
Canyon 7870 9.1 7.3 125 15.3 9.4 163
Cole Creek 7850 6.1 7.2 85 5.2 7.1 73
Evening Star 9200 18.2 14.1 129 24.5 15.9 154
Fisher Creek 9100 17.7 18.4 96 22.9 18.2 126
Northeast Entrance 7350 6.4 5.4 119 11.5 7.4 155
Parker Peak 9400 15.9 11.6 137 18.7 10.1 185
Sylvan Lake 8420 12.4 11.2 111 22.8 13.2 173
Thumb Divide 7980 9.8 8.0 122 15.3 10.8 142
Two Ocean Plateau 9240 22.9 15.5 148 23.5 15.4 153
White Mill 8700 14.7 12.8 115 17.8 13.7 130
Wolverine 7650 9.2 6.0 153 12.5 7.4 169
----- -----
Basin Index (%) 123 142
WIND RIVER
Burroughs Creek 8750 11.7 -M * 14.3 -M *
Castle Creek 8400 6.6 -M * 8.7 -M *
Cold Springs 9630 5.9 4.1 144 8.4 5.7 147
Deer Park 9700 17.2 7.3 236 20.8 10.9 191
Hobbs Park 10100 11.8 7.3 162 11.8 7.0 169
Kirwin 9550 9.4 5.3 177 12.4 6.6 188
Little Warm 9370 6.5 5.6 116 11.7 7.3 160
Owl Creek 8975 3.5 2.9 121 5.1 3.3 155
South Pass 9040 16.3 7.8 209 16.1 9.8 164
St. Lawrence Alt 8620 3.1 3.5 89 7.1 4.9 145
Togwotee Pass 9580 17.6 13.0 135 21.3 14.1 151
Townsend Creek 8700 6.2 4.4 141 9.0 6.5 138
----- -----
Basin Index (%) 159 163
BIGHORN BASIN
Bald Mtn. 9380 11.8 9.9 119 10.5 9.6 109
Bear Trap Meadow 8200 2.8 2.9 97 4.3 4.7 91
Bone Springs Div 9350 9.1 8.7 105 9.5 8.5 112
Grave Springs 8550 3.3 4.4 75 4.5 5.8 78
Kirwin 9550 9.4 5.3 177 12.4 6.6 188
Marquette 8760 4.6 -M * 8.1 -M *
Middle Powder 7760 4.1 6.0 68 4.8 6.8 71
Owl Creek 8975 3.5 2.9 121 5.1 3.3 155
Powder River Pass 9480 3.4 5.8 59 6.3 7.0 90
Shell Creek 9580 9.6 8.4 114 7.9 7.8 101
Timber Creek 7950 3.2 2.6 123 4.6 4.2 110
----- -----
Basin Index (%) 106 109
SHOSHONE RIVER
Blackwater 9780 19.1 13.0 147 22.8 11.8 193
Evening Star 9200 18.2 14.1 129 24.5 15.9 154
Marquette 8760 4.6 -M * 8.1 -M *
Sylvan Road 7120 9.1 6.8 134 19.3 10.7 180
Younts Peak 8350 12.1 8.5 142 16.3 9.4 173
----- -----
Basin Index (%) 138 173
POWDER RIVER
Bear Trap Meadow 8200 2.8 2.9 97 4.3 4.7 91
Cloud Peak Reservoir 9860 6.6 7.3 90 8.5 7.1 120
Grave Springs 8550 3.3 4.4 75 4.5 5.8 78
Hansen Sawmill 8360 4.3 3.5 123 6.1 4.6 133
Middle Powder 7760 4.1 6.0 68 4.8 6.8 71
Powder River Pass 9480 3.4 5.8 59 6.3 7.0 90
Soldier Park 8720 7.0 -M * 6.4 -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 8.7 105 9.5 8.5 112
Burgess Junction 7880 5.1 5.9 86 6.4 6.8 94
Dome Lake 8880 6.2 6.2 100 7.7 7.6 101
Little Goose 8870 5.4 -M * 7.6 -M *
Sucker Creek 8880 6.0 6.4 94 6.5 7.8 83
Tie Creek 6870 3.6 2.8 129 6.7 6.5 103
----- -----
Basin Index (%) 102 99
BELLE FOURCHE
Cole Canyon 5910 3.1 2.7 115 4.1 5.2 79
----- -----
Basin Index (%) 115 79
CHEYENNE RIVER BASIN
Blind Park 6890 3.6 4.1 88 4.8 7.0 69
North Rapid Creek 6130 3.9 3.7 105 4.2 5.7 74
----- -----
Basin Index (%) 96 71
UPPER N. PLATTE
Arapaho Ridge 10960 17.7 11.2 158 18.6 12.8 145
Blackhall Mtn 9820 23.2 -M * 24.4 -M *
Columbine 9160 17.5 12.5 140 18.8 14.2 132
Divide Peak 8880 11.8 10.5 112 14.5 12.1 120
Joe Wright 10120 13.7 11.4 120 19.6 14.2 138
Laprele Creek 8375 6.3 5.0 126 6.1 6.8 90
Med Bow 10500 24.3 -M * 23.3 -M *
North French Creek 10130 15.3 14.0 109 17.0 14.8 115
Never Summer 10280 -M 10.6 * -M -M *
Old Battle 10000 22.6 15.8 143 24.8 19.7 126
Rawah 9020 9.3 5.5 169 11.9 8.5 140
Sage Creek Basin 7850 9.5 7.3 130 10.1 8.7 116
Sand Lake 10050 18.0 14.5 124 17.4 13.4 130
South Brush Creek 8440 6.4 6.2 103 7.5 8.5 88
Tower 10500 27.3 22.9 119 30.4 22.3 136
Webber Springs 9250 18.1 12.0 151 21.6 15.0 144
Willow Creek Pass 9540 12.4 6.3 197 13.2 7.4 178
Zirkel 9340 -M 15.9 * 23.1 16.7 138
----- -----
Basin Index (%) 133 130
SWEETWATER
Deer Park 9700 17.2 7.3 236 20.8 10.9 191
Larsen Creek 9000 11.4 6.1 187 14.9 -M *
South Pass 9040 16.3 7.8 209 16.1 9.8 164
----- -----
Basin Index (%) 212 178
LOWER N. PLATTE
Casper Mtn. 7900 5.7 6.8 84 6.1 8.2 74
Laprele Creek 8375 6.3 5.0 126 6.1 6.8 90
Reno Hill 8400 -M 6.7 * -M 8.1 *
Windy Peak 7900 5.0 3.7 135 5.6 5.8 97
----- -----
Basin Index (%) 110 86
LARAMIE RIVER
Brooklyn Lake 10240 15.1 10.9 139 14.0 11.2 125
Cinnabar Park 9574 12.4 11.7 106 15.2 14.3 106
Crow Creek 8330 4.1 5.1 80 5.7 6.0 95
Deadman Hill 10220 13.6 8.3 164 13.5 9.1 148
Rawah 9020 9.3 5.5 169 11.9 8.5 140
Roach 9700 11.6 8.8 132 13.7 10.5 130
----- -----
Basin Index (%) 131 124
S. PLATTE
Black Mountain 8920 6.9 -M * 8.2 -M *
Crow Creek 8330 4.1 5.1 80 5.7 6.0 95
Deadman Hill 10220 13.6 8.3 164 13.5 9.1 148
----- -----
Basin Index (%) 132 127
LITTLE SNAKE RIVER
Battle Mountain 7440 8.0 5.7 140 -M 8.6 *
Divide Peak 8880 11.8 10.5 112 14.5 12.1 120
Elk River 8700 14.6 9.4 155 14.8 11.2 132
Little Snake River 8915 20.5 12.4 165 26.2 17.9 146
Old Battle 10000 22.6 15.8 143 24.8 19.7 126
Sage Creek Basin 7850 9.5 7.3 130 10.1 8.7 116
Sandstone RS 8150 10.0 6.9 145 10.6 10.5 101
Whiskey Park 8950 17.7 13.5 131 20.6 15.3 135
----- -----
Basin Index (%) 141 127
UPPER GREEN RIVER
Big Sandy Opening 9080 12.2 7.0 174 14.8 7.4 200
Blind Bull Sum 8650 21.2 12.3 172 15.9 11.3 141
East Rim Divide 7930 10.1 5.7 177 12.4 6.8 182
Elkhart Park G.S. 9400 9.2 6.5 142 14.6 7.6 192
Gros Ventre Summit 8750 9.3 7.5 124 13.5 7.3 185
Gunsight Pass 9820 10.0 7.4 135 14.0 7.8 179
Kendall R.S. 7740 11.8 6.6 179 16.0 8.1 198
Loomis Park 8240 14.1 7.9 178 19.3 9.9 195
New Fork Lake 8340 9.3 5.7 163 9.8 6.2 158
Pocket Creek 9360 -M -M * -M -M *
Snider Basin 8060 11.2 6.4 175 15.8 8.1 195
Spring Creek Divide 9000 19.2 12.2 157 22.4 13.6 165
Triple Peak 8500 20.8 11.4 182 23.0 13.9 165
----- -----
Basin Index (%) 164 177
LOWER GREEN RIVER
Blacks Fork Jct 8870 7.4 -M * 9.7 -M *
Buck Pasture 9700 11.7 -M * 14.7 -M *
EF Blacks Fork GS 9360 8.5 -M * 9.3 -M *
Hams Fork 7840 10.0 5.8 172 12.1 6.4 189
Hewinta 9519 7.9 4.9 161 10.2 7.6 134
Hickerson Park 9145 5.4 3.2 169 5.5 5.6 98
Hole-in-Rock 9150 4.4 3.4 129 6.2 5.2 119
Indian Creek 9425 19.7 12.5 158 -M 12.3 *
Kelley R.S. 8180 13.7 7.5 183 18.9 10.2 185
Spirit Lk 10235 8.2 -M * 9.8 -M *
Steel Creek Park 10200 10.8 7.4 146 12.7 8.8 144
----- -----
Basin Index (%) 161 150
UPPER BEAR RIVER
Bear River RS 8777 8.8 -M * 10.6 -M *
Bug Lake 7950 19.0 8.7 218 18.4 10.9 169
Burts Miller Ranch 8000 4.7 -M * 5.2 -M *
Chalk Creek #1 8993 19.4 11.7 166 -M 13.8 *
Hayden Fork 9212 13.8 7.3 189 18.3 11.5 159
Kelley R.S. 8180 13.7 7.5 183 18.9 10.2 185
Lily Lake 9156 10.2 6.5 157 12.0 9.5 126
Monte Cristo 8960 18.7 13.7 136 -M 14.4 *
Salt River Summit 7760 11.0 6.4 172 16.6 9.3 178
----- -----
Basin Index (%) 171 164
-----------------------------------------------------------------------------
-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.