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 22 , 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 15.4 10.1 152 23.2 12.7 183
Black Bear 8170 21.9 22.1 99 31.0 22.7 137
Blind Bull Sum 8650 21.7 12.8 170 -M 11.8 *
Cottonwood Creek 7670 15.4 11.4 135 21.6 14.5 149
East Rim Divide 7930 10.2 6.2 165 12.6 7.1 177
Grand Targhee 9260 28.0 21.7 129 25.9 18.5 140
Granite Creek 6770 15.1 9.2 164 20.7 12.4 167
Grassy Lake 7265 22.9 17.8 129 34.3 21.8 157
Gros Ventre Summit 8750 9.4 7.8 121 13.6 7.6 179
Gunsight Pass 9820 10.1 7.8 129 14.1 8.2 172
Lewis Lake Divide 7850 19.5 17.6 111 31.2 21.2 147
Phillips Bench 8200 17.7 15.6 113 26.6 16.6 160
Salt River Summit 7760 11.2 7.1 158 16.6 9.8 169
Snake River Station 6920 14.0 9.4 149 23.2 14.1 165
Spring Creek Divide 9000 19.5 12.7 154 22.6 14.2 159
Thumb Divide 7980 10.2 8.5 120 15.7 11.2 140
Togwotee Pass 9580 17.7 13.3 133 21.5 14.6 147
Two Ocean Plateau 9240 23.3 15.8 147 23.8 16.0 149
Willow Creek 8380 18.9 15.4 123 29.7 19.8 150
Younts Peak 8350 12.3 8.8 140 16.7 9.7 172
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Basin Index (%) 133 156
MADISON-GALLATIN
Black Bear 8170 21.9 22.1 99 31.0 22.7 137
Canyon 7870 9.2 7.6 121 15.5 9.9 157
Madison Plateau 7750 13.0 13.4 97 22.3 15.9 140
West Yellowstone 6700 7.4 6.6 112 14.9 8.8 169
Whiskey Creek 6800 8.5 8.9 96 16.4 12.2 134
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Basin Index (%) 102 144
YELLOWSTONE
Beartooth Lake 9360 15.3 12.8 120 11.7 11.7 100
Burnt Mtn 5880 4.4 2.3 191 8.4 7.5 112
Canyon 7870 9.2 7.6 121 15.5 9.9 157
Cole Creek 7850 6.1 7.6 80 5.2 7.2 72
Evening Star 9200 18.2 14.5 126 24.6 16.5 149
Fisher Creek 9100 18.0 19.3 93 23.1 19.0 122
Northeast Entrance 7350 6.5 5.8 112 11.7 7.6 154
Parker Peak 9400 16.2 12.1 134 19.0 10.5 181
Sylvan Lake 8420 12.6 11.8 107 23.2 13.8 168
Thumb Divide 7980 10.2 8.5 120 15.7 11.2 140
Two Ocean Plateau 9240 23.3 15.8 147 23.8 16.0 149
White Mill 8700 14.9 13.5 110 18.0 14.1 128
Wolverine 7650 -M 6.3 * -M 7.6 *
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Basin Index (%) 118 138
WIND RIVER
Burroughs Creek 8750 11.8 -M * 14.6 -M *
Castle Creek 8400 6.6 -M * 8.7 -M *
Cold Springs 9630 5.9 4.2 140 8.5 5.8 147
Deer Park 9700 17.2 8.0 215 20.8 11.5 181
Hobbs Park 10100 11.8 7.6 155 11.9 7.3 163
Kirwin 9550 9.5 5.4 176 12.6 6.8 185
Little Warm 9370 6.5 5.8 112 11.7 7.6 154
Owl Creek 8975 3.5 3.0 117 5.1 3.3 155
South Pass 9040 16.4 8.1 202 16.1 10.1 159
St. Lawrence Alt 8620 3.1 3.7 84 7.2 5.0 144
Togwotee Pass 9580 17.7 13.3 133 21.5 14.6 147
Townsend Creek 8700 6.3 4.6 137 9.2 6.7 137
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Basin Index (%) 154 158
BIGHORN BASIN
Bald Mtn. 9380 12.0 10.1 119 10.5 9.9 106
Bear Trap Meadow 8200 2.9 3.1 94 4.5 4.9 92
Bone Springs Div 9350 9.2 9.2 100 9.7 8.9 109
Grave Springs 8550 3.4 4.6 74 4.4 6.0 73
Kirwin 9550 9.5 5.4 176 12.6 6.8 185
Marquette 8760 4.5 -M * 7.9 -M *
Middle Powder 7760 4.4 6.0 73 4.9 6.9 71
Owl Creek 8975 3.5 3.0 117 5.1 3.3 155
Powder River Pass 9480 3.6 5.9 61 6.5 7.3 89
Shell Creek 9580 9.8 8.6 114 8.1 8.1 100
Timber Creek 7950 3.4 2.8 121 4.7 4.3 109
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Basin Index (%) 105 107
SHOSHONE RIVER
Blackwater 9780 19.1 13.2 145 22.8 12.2 187
Evening Star 9200 18.2 14.5 126 24.6 16.5 149
Marquette 8760 4.5 -M * 7.9 -M *
Sylvan Road 7120 9.2 7.2 128 19.3 11.1 174
Younts Peak 8350 12.3 8.8 140 16.7 9.7 172
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Basin Index (%) 135 168
POWDER RIVER
Bear Trap Meadow 8200 2.9 3.1 94 4.5 4.9 92
Cloud Peak Reservoir 9860 6.9 7.7 90 8.9 7.4 120
Grave Springs 8550 3.4 4.6 74 4.4 6.0 73
Hansen Sawmill 8360 4.5 3.7 122 6.3 4.7 134
Middle Powder 7760 4.4 6.0 73 4.9 6.9 71
Powder River Pass 9480 3.6 5.9 61 6.5 7.3 89
Soldier Park 8720 7.2 -M * 6.5 -M *
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Basin Index (%) 83 95
TONGUE RIVER
Big Goose 7990 5.1 4.4 116 6.1 6.0 102
Bone Springs Div 9350 9.2 9.2 100 9.7 8.9 109
Burgess Junction 7880 5.4 6.2 87 6.6 7.0 94
Dome Lake 8880 6.3 6.4 98 7.7 7.8 99
Little Goose 8870 5.5 -M * 7.7 -M *
Sucker Creek 8880 6.2 6.6 94 6.7 8.1 83
Tie Creek 6870 3.7 3.1 119 6.8 6.7 101
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Basin Index (%) 100 98
BELLE FOURCHE
Cole Canyon 5910 3.1 3.0 103 4.2 5.4 78
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Basin Index (%) 103 78
CHEYENNE RIVER BASIN
Blind Park 6890 3.7 4.1 90 4.8 7.2 67
North Rapid Creek 6130 3.9 3.9 100 4.2 5.9 71
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Basin Index (%) 95 69
UPPER N. PLATTE
Arapaho Ridge 10960 18.0 11.4 158 18.8 13.0 145
Blackhall Mtn 9820 23.5 -M * 24.6 -M *
Columbine 9160 17.9 13.2 136 19.9 14.8 134
Divide Peak 8880 12.3 11.2 110 14.6 12.6 116
Joe Wright 10120 14.0 12.1 116 19.5 14.8 132
Laprele Creek 8375 6.6 5.3 125 6.2 7.0 89
Med Bow 10500 24.7 -M * 23.6 -M *
North French Creek 10130 15.7 14.6 108 17.4 15.4 113
Never Summer 10280 -M 11.1 * -M -M *
Old Battle 10000 23.0 16.8 137 24.8 20.6 120
Rawah 9020 9.5 5.7 167 12.1 8.6 141
Sage Creek Basin 7850 9.8 7.5 131 10.4 8.9 117
Sand Lake 10050 18.2 15.2 120 17.7 13.9 127
South Brush Creek 8440 6.8 6.6 103 8.1 8.8 92
Tower 10500 28.2 24.6 115 30.7 23.3 132
Webber Springs 9250 18.1 12.4 146 22.1 15.6 142
Willow Creek Pass 9540 12.6 6.7 188 13.6 7.7 177
Zirkel 9340 25.6 16.4 156 -M 17.0 *
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Basin Index (%) 131 128
SWEETWATER
Deer Park 9700 17.2 8.0 215 20.8 11.5 181
Larsen Creek 9000 11.5 6.5 177 15.0 -M *
South Pass 9040 16.4 8.1 202 16.1 10.1 159
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Basin Index (%) 200 171
LOWER N. PLATTE
Casper Mtn. 7900 5.9 7.0 84 6.2 8.5 73
Laprele Creek 8375 6.6 5.3 125 6.2 7.0 89
Reno Hill 8400 -M 7.1 * -M 8.4 *
Windy Peak 7900 5.1 3.9 131 5.8 6.0 97
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Basin Index (%) 109 85
LARAMIE RIVER
Brooklyn Lake 10240 15.2 11.3 135 14.1 11.8 119
Cinnabar Park 9574 12.6 12.0 105 15.3 14.6 105
Crow Creek 8330 4.0 5.5 73 5.7 6.1 93
Deadman Hill 10220 13.7 8.8 156 13.4 9.5 141
Rawah 9020 9.5 5.7 167 12.1 8.6 141
Roach 9700 11.7 9.4 124 13.9 11.0 126
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Basin Index (%) 127 121
S. PLATTE
Black Mountain 8920 6.9 -M * 8.2 -M *
Crow Creek 8330 4.0 5.5 73 5.7 6.1 93
Deadman Hill 10220 13.7 8.8 156 13.4 9.5 141
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Basin Index (%) 124 122
LITTLE SNAKE RIVER
Battle Mountain 7440 8.2 6.3 130 10.8 8.9 121
Divide Peak 8880 12.3 11.2 110 14.6 12.6 116
Elk River 8700 14.8 9.9 149 14.8 11.7 126
Little Snake River 8915 21.0 13.2 159 26.3 18.8 140
Old Battle 10000 23.0 16.8 137 24.8 20.6 120
Sage Creek Basin 7850 9.8 7.5 131 10.4 8.9 117
Sandstone RS 8150 10.2 7.3 140 10.9 11.0 99
Whiskey Park 8950 18.2 14.8 123 20.9 16.2 129
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Basin Index (%) 135 123
UPPER GREEN RIVER
Big Sandy Opening 9080 12.4 7.1 175 14.9 7.7 194
Blind Bull Sum 8650 21.7 12.8 170 -M 11.8 *
East Rim Divide 7930 10.2 6.2 165 12.6 7.1 177
Elkhart Park G.S. 9400 9.2 7.0 131 14.6 7.9 185
Gros Ventre Summit 8750 9.4 7.8 121 13.6 7.6 179
Gunsight Pass 9820 10.1 7.8 129 14.1 8.2 172
Kendall R.S. 7740 11.9 6.9 172 16.3 8.4 194
Loomis Park 8240 14.3 8.7 164 19.5 10.3 189
New Fork Lake 8340 9.4 6.3 149 9.9 6.5 152
Pocket Creek 9360 -M -M * -M -M *
Snider Basin 8060 11.5 6.7 172 16.2 8.4 193
Spring Creek Divide 9000 19.5 12.7 154 22.6 14.2 159
Triple Peak 8500 21.2 11.8 180 23.2 14.6 159
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Basin Index (%) 158 176
LOWER GREEN RIVER
Blacks Fork Jct 8870 7.9 -M * 10.1 -M *
Buck Pasture 9700 12.4 -M * 14.9 -M *
EF Blacks Fork GS 9360 8.6 -M * 9.4 -M *
Hams Fork 7840 10.4 6.5 160 12.3 6.7 184
Hewinta 9519 8.3 5.1 163 10.6 8.0 132
Hickerson Park 9145 5.7 3.3 173 5.9 5.7 104
Hole-in-Rock 9150 4.7 3.7 127 6.6 5.4 122
Indian Creek 9425 20.1 13.5 149 -M 12.8 *
Kelley R.S. 8180 14.0 8.1 173 19.2 10.6 181
Spirit Lk 10235 8.7 -M * 10.3 -M *
Steel Creek Park 10200 11.2 7.7 145 12.8 9.2 139
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Basin Index (%) 155 148
UPPER BEAR RIVER
Bear River RS 8777 9.0 -M * 11.0 -M *
Bug Lake 7950 -M 9.2 * -M 11.4 *
Burts Miller Ranch 8000 5.2 -M * 5.6 -M *
Chalk Creek #1 8993 20.2 12.1 167 -M 14.3 *
Hayden Fork 9212 14.0 7.8 179 18.5 12.0 154
Kelley R.S. 8180 14.0 8.1 173 19.2 10.6 181
Lily Lake 9156 10.6 6.8 156 12.3 9.9 124
Monte Cristo 8960 19.6 14.1 139 19.7 15.0 131
Salt River Summit 7760 11.2 7.1 158 16.6 9.8 169
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Basin Index (%) 160 151
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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.