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 SATURDAY: JANUARY 28 , 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 15.5 10.6 146 23.4 13.6 172
Black Bear 8170 22.4 23.0 97 31.4 24.2 130
Blind Bull Sum 8650 22.0 13.3 165 15.8 12.5 126
Cottonwood Creek 7670 16.3 12.1 135 22.3 15.3 146
East Rim Divide 7930 11.0 6.7 164 13.3 7.5 177
Grand Targhee 9260 28.4 23.2 122 26.3 20.2 130
Granite Creek 6770 15.8 9.9 160 20.9 13.2 158
Grassy Lake 7265 23.5 19.2 122 34.7 23.2 150
Gros Ventre Summit 8750 9.5 8.1 117 13.7 8.0 171
Gunsight Pass 9820 10.2 8.0 128 14.2 8.6 165
Lewis Lake Divide 7850 19.8 19.0 104 31.6 22.5 140
Phillips Bench 8200 18.4 15.9 116 26.7 17.6 152
Salt River Summit 7760 12.2 7.4 165 17.1 10.3 166
Snake River Station 6920 14.1 10.1 140 23.3 15.0 155
Spring Creek Divide 9000 20.4 13.7 149 22.9 14.9 154
Thumb Divide 7980 10.2 9.3 110 15.7 11.9 132
Togwotee Pass 9580 18.3 14.5 126 22.0 15.4 143
Two Ocean Plateau 9240 23.4 16.5 142 23.5 16.8 140
Willow Creek 8380 19.9 16.7 119 30.9 21.0 147
Younts Peak 8350 12.5 9.1 137 16.7 10.2 164
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Basin Index (%) 129 148
MADISON-GALLATIN
Black Bear 8170 22.4 23.0 97 31.4 24.2 130
Canyon 7870 9.3 7.9 118 15.6 10.4 150
Madison Plateau 7750 13.6 13.9 98 22.7 16.9 134
West Yellowstone 6700 7.6 6.9 110 15.1 9.4 161
Whiskey Creek 6800 8.7 9.5 92 16.6 12.9 129
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Basin Index (%) 101 137
YELLOWSTONE
Beartooth Lake 9360 15.4 13.4 115 11.8 12.5 94
Burnt Mtn 5880 4.5 2.4 188 8.6 7.7 112
Canyon 7870 9.3 7.9 118 15.6 10.4 150
Cole Creek 7850 6.2 8.0 78 5.1 7.4 69
Evening Star 9200 18.5 15.5 119 24.9 17.5 142
Fisher Creek 9100 18.3 20.1 91 23.4 20.2 116
Northeast Entrance 7350 6.5 6.1 107 11.7 8.0 146
Parker Peak 9400 16.1 12.4 130 19.0 11.1 171
Sylvan Lake 8420 12.9 12.6 102 23.3 14.4 162
Thumb Divide 7980 10.2 9.3 110 15.7 11.9 132
Two Ocean Plateau 9240 23.4 16.5 142 23.5 16.8 140
White Mill 8700 15.1 14.0 108 18.2 15.0 121
Wolverine 7650 8.8 6.7 131 12.6 8.0 158
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Basin Index (%) 114 133
WIND RIVER
Burroughs Creek 8750 12.2 -M * 14.7 -M *
Castle Creek 8400 6.7 -M * 8.9 -M *
Cold Springs 9630 6.3 4.3 147 8.8 6.1 144
Deer Park 9700 18.0 8.8 205 21.2 11.9 178
Hobbs Park 10100 12.3 7.9 156 12.4 7.6 163
Kirwin 9550 9.8 5.6 175 12.8 7.1 180
Little Warm 9370 6.7 6.1 110 11.8 7.9 149
Owl Creek 8975 3.9 3.1 126 5.5 3.4 162
South Pass 9040 17.0 8.3 205 16.3 10.6 154
St. Lawrence Alt 8620 3.8 4.1 93 7.7 5.2 148
Togwotee Pass 9580 18.3 14.5 126 22.0 15.4 143
Townsend Creek 8700 6.9 5.0 138 9.7 6.9 141
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Basin Index (%) 152 156
BIGHORN BASIN
Bald Mtn. 9380 12.2 10.6 115 10.7 10.4 103
Bear Trap Meadow 8200 3.3 3.3 100 4.6 5.1 90
Bone Springs Div 9350 9.4 9.6 98 9.8 9.3 105
Grave Springs 8550 3.8 4.9 78 4.8 6.3 76
Kirwin 9550 9.8 5.6 175 12.8 7.1 180
Marquette 8760 4.9 -M * 8.3 -M *
Middle Powder 7760 4.6 6.2 74 5.1 7.2 71
Owl Creek 8975 3.9 3.1 126 5.5 3.4 162
Powder River Pass 9480 3.8 6.1 62 6.5 7.7 84
Shell Creek 9580 9.9 8.9 111 8.0 8.6 93
Timber Creek 7950 3.7 3.0 123 4.9 4.4 111
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Basin Index (%) 105 105
SHOSHONE RIVER
Blackwater 9780 19.4 14.2 137 23.2 12.9 180
Evening Star 9200 18.5 15.5 119 24.9 17.5 142
Marquette 8760 4.9 -M * 8.3 -M *
Sylvan Road 7120 9.4 7.6 124 19.6 11.6 169
Younts Peak 8350 12.5 9.1 137 16.7 10.2 164
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Basin Index (%) 129 162
POWDER RIVER
Bear Trap Meadow 8200 3.3 3.3 100 4.6 5.1 90
Cloud Peak Reservoir 9860 7.3 8.0 91 9.1 7.7 118
Grave Springs 8550 3.8 4.9 78 4.8 6.3 76
Hansen Sawmill 8360 4.8 4.0 120 6.6 4.9 135
Middle Powder 7760 4.6 6.2 74 5.1 7.2 71
Powder River Pass 9480 3.8 6.1 62 6.5 7.7 84
Soldier Park 8720 7.4 -M * 6.7 -M *
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Basin Index (%) 85 94
TONGUE RIVER
Big Goose 7990 5.2 4.7 111 6.3 6.4 98
Bone Springs Div 9350 9.4 9.6 98 9.8 9.3 105
Burgess Junction 7880 5.5 6.5 85 6.7 7.2 93
Dome Lake 8880 6.4 6.6 97 7.9 8.1 98
Little Goose 8870 5.7 -M * 7.9 -M *
Sucker Creek 8880 6.4 7.0 91 6.7 8.4 80
Tie Creek 6870 3.8 3.2 119 6.9 6.9 100
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Basin Index (%) 98 96
BELLE FOURCHE
Cole Canyon 5910 3.4 3.1 110 4.3 5.6 77
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Basin Index (%) 110 77
CHEYENNE RIVER BASIN
Blind Park 6890 4.1 4.4 93 5.1 7.5 68
North Rapid Creek 6130 4.3 4.1 105 4.6 6.1 75
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Basin Index (%) 99 71
UPPER N. PLATTE
Arapaho Ridge 10960 18.7 12.7 147 19.5 13.7 142
Blackhall Mtn 9820 25.2 -M * 26.4 -M *
Columbine 9160 18.9 14.2 133 20.5 15.8 130
Divide Peak 8880 13.2 11.8 112 15.6 13.2 118
Joe Wright 10120 14.5 12.6 115 20.5 15.5 132
Laprele Creek 8375 6.9 5.3 130 6.7 7.3 92
Med Bow 10500 26.0 -M * 24.9 -M *
North French Creek 10130 16.5 15.6 106 18.2 16.4 111
Never Summer 10280 -M 11.8 * -M -M *
Old Battle 10000 24.9 18.6 134 26.2 21.7 121
Rawah 9020 10.0 6.0 167 12.3 8.9 138
Sage Creek Basin 7850 11.0 8.0 138 11.7 9.4 124
Sand Lake 10050 19.2 16.0 120 18.4 14.6 126
South Brush Creek 8440 7.0 7.1 99 8.0 9.3 86
Tower 10500 30.2 26.5 114 31.4 24.8 127
Webber Springs 9250 19.5 13.1 149 23.4 16.5 142
Willow Creek Pass 9540 13.0 7.2 181 13.9 8.0 174
Zirkel 9340 27.2 17.6 155 32.5 18.1 180
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Basin Index (%) 130 131
SWEETWATER
Deer Park 9700 18.0 8.8 205 21.2 11.9 178
Larsen Creek 9000 12.0 7.0 171 15.5 -M *
South Pass 9040 17.0 8.3 205 16.3 10.6 154
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Basin Index (%) 195 167
LOWER N. PLATTE
Casper Mtn. 7900 6.4 7.4 86 6.7 8.9 75
Laprele Creek 8375 6.9 5.3 130 6.7 7.3 92
Reno Hill 8400 -M 7.6 * -M 8.7 *
Windy Peak 7900 5.6 4.0 140 6.3 6.2 102
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Basin Index (%) 113 88
LARAMIE RIVER
Brooklyn Lake 10240 16.1 11.9 135 14.8 12.5 118
Cinnabar Park 9574 13.1 12.9 102 15.8 15.4 103
Crow Creek 8330 4.2 5.6 75 5.9 6.4 92
Deadman Hill 10220 14.0 9.6 146 13.3 10.0 133
Rawah 9020 10.0 6.0 167 12.3 8.9 138
Roach 9700 12.4 9.8 127 14.6 11.5 127
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Basin Index (%) 125 119
S. PLATTE
Black Mountain 8920 7.1 -M * 8.4 -M *
Crow Creek 8330 4.2 5.6 75 5.9 6.4 92
Deadman Hill 10220 14.0 9.6 146 13.3 10.0 133
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Basin Index (%) 120 117
LITTLE SNAKE RIVER
Battle Mountain 7440 8.8 6.8 129 -M 9.4 *
Divide Peak 8880 13.2 11.8 112 15.6 13.2 118
Elk River 8700 15.7 10.6 148 15.7 12.3 128
Little Snake River 8915 22.6 14.8 153 28.0 19.9 141
Old Battle 10000 24.9 18.6 134 26.2 21.7 121
Sage Creek Basin 7850 11.0 8.0 138 11.7 9.4 124
Sandstone RS 8150 10.7 7.7 139 11.5 11.6 99
Whiskey Park 8950 19.1 15.2 126 21.8 17.2 127
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Basin Index (%) 135 124
UPPER GREEN RIVER
Big Sandy Opening 9080 13.1 7.8 168 15.5 8.1 191
Blind Bull Sum 8650 22.0 13.3 165 15.8 12.5 126
East Rim Divide 7930 11.0 6.7 164 13.3 7.5 177
Elkhart Park G.S. 9400 10.0 7.2 139 15.5 8.2 189
Gros Ventre Summit 8750 9.5 8.1 117 13.7 8.0 171
Gunsight Pass 9820 10.2 8.0 128 14.2 8.6 165
Kendall R.S. 7740 12.4 7.7 161 16.7 8.9 188
Loomis Park 8240 15.0 9.2 163 20.1 10.9 184
New Fork Lake 8340 10.1 6.7 151 10.5 6.9 152
Pocket Creek 9360 -M -M * -M -M *
Snider Basin 8060 12.2 7.3 167 16.9 8.9 190
Spring Creek Divide 9000 20.4 13.7 149 22.9 14.9 154
Triple Peak 8500 22.1 12.5 177 23.3 15.5 150
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Basin Index (%) 155 167
LOWER GREEN RIVER
Blacks Fork Jct 8870 8.0 -M * 10.4 -M *
Buck Pasture 9700 13.5 -M * 16.3 -M *
EF Blacks Fork GS 9360 9.1 -M * 9.5 -M *
Hams Fork 7840 11.1 6.9 161 13.2 7.1 186
Hewinta 9519 8.7 5.3 164 10.9 8.3 131
Hickerson Park 9145 6.0 3.6 167 6.3 6.0 105
Hole-in-Rock 9150 4.9 3.8 129 6.8 5.6 121
Indian Creek 9425 -M 14.1 * -M 13.6 *
Kelley R.S. 8180 15.2 8.7 175 20.4 11.2 182
Spirit Lk 10235 9.6 -M * 11.2 -M *
Steel Creek Park 10200 11.7 8.4 139 13.4 9.6 140
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Basin Index (%) 157 149
UPPER BEAR RIVER
Bear River RS 8777 9.8 -M * 11.7 -M *
Bug Lake 7950 21.3 9.9 215 18.8 12.1 155
Burts Miller Ranch 8000 5.6 -M * 5.8 -M *
Chalk Creek #1 8993 21.8 13.1 166 -M 15.2 *
Hayden Fork 9212 15.6 8.3 188 -M 12.6 *
Kelley R.S. 8180 15.2 8.7 175 20.4 11.2 182
Lily Lake 9156 10.7 7.2 149 13.2 10.4 127
Monte Cristo 8960 21.9 15.3 143 -M 15.8 *
Salt River Summit 7760 12.2 7.4 165 17.1 10.3 166
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Basin Index (%) 170 158*
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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.