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 FRIDAY: JANUARY 20 , 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 9.9 156 23.2 12.5 186
Black Bear 8170 21.6 21.6 100 30.8 22.1 139
Blind Bull Sum 8650 21.7 12.6 172 -M 11.6 *
Cottonwood Creek 7670 14.9 11.1 134 21.1 14.3 148
East Rim Divide 7930 10.3 6.0 172 12.6 7.0 180
Grand Targhee 9260 27.5 21.4 129 25.6 18.4 139
Granite Creek 6770 15.0 9.1 165 20.7 12.1 171
Grassy Lake 7265 22.4 17.4 129 33.8 21.3 159
Gros Ventre Summit 8750 9.4 7.6 124 13.7 7.5 183
Gunsight Pass 9820 10.2 7.7 132 14.2 8.0 178
Lewis Lake Divide 7850 19.4 17.2 113 31.1 20.8 150
Phillips Bench 8200 17.5 15.5 113 26.5 16.3 163
Salt River Summit 7760 11.2 6.8 165 16.5 9.6 172
Snake River Station 6920 14.0 9.3 151 22.0 13.8 159
Spring Creek Divide 9000 19.3 12.6 153 22.6 13.9 163
Thumb Divide 7980 10.2 8.3 123 15.6 10.9 143
Togwotee Pass 9580 17.6 13.2 133 21.4 14.4 149
Two Ocean Plateau 9240 -M 15.7 * -M 15.7 *
Willow Creek 8380 18.5 15.0 123 27.8 19.5 143
Younts Peak 8350 12.4 8.7 143 16.8 9.6 175
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Basin Index (%) 134 157
MADISON-GALLATIN
Black Bear 8170 21.6 21.6 100 30.8 22.1 139
Canyon 7870 9.1 7.5 121 15.5 9.6 161
Madison Plateau 7750 12.9 13.1 98 22.2 15.5 143
West Yellowstone 6700 7.4 6.5 114 14.8 8.6 172
Whiskey Creek 6800 8.4 8.7 97 16.3 12.0 136
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Basin Index (%) 103 147
YELLOWSTONE
Beartooth Lake 9360 15.3 12.7 120 11.8 11.5 103
Burnt Mtn 5880 4.5 2.3 196 8.4 7.4 114
Canyon 7870 9.1 7.5 121 15.5 9.6 161
Cole Creek 7850 6.1 7.5 81 5.3 7.2 74
Evening Star 9200 18.3 14.3 128 24.6 16.3 151
Fisher Creek 9100 18.0 19.0 95 23.0 18.6 124
Northeast Entrance 7350 6.4 5.6 114 11.6 7.5 155
Parker Peak 9400 16.2 11.9 136 19.0 10.4 183
Sylvan Lake 8420 12.5 11.5 109 23.1 13.5 171
Thumb Divide 7980 10.2 8.3 123 15.6 10.9 143
Two Ocean Plateau 9240 -M 15.7 * -M 15.7 *
White Mill 8700 14.9 13.3 112 18.0 13.9 129
Wolverine 7650 -M 6.2 * -M 7.5 *
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Basin Index (%) 115 139
WIND RIVER
Burroughs Creek 8750 11.8 -M * 14.6 -M *
Castle Creek 8400 6.7 -M * 8.8 -M *
Cold Springs 9630 6.0 4.2 143 8.6 5.8 148
Deer Park 9700 17.3 7.7 225 20.8 11.3 184
Hobbs Park 10100 12.0 7.4 162 12.0 7.2 167
Kirwin 9550 9.6 5.3 181 12.7 6.7 190
Little Warm 9370 6.6 5.8 114 11.8 7.4 159
Owl Creek 8975 3.5 3.0 117 5.2 3.3 158
South Pass 9040 16.5 8.0 206 16.2 10.0 162
St. Lawrence Alt 8620 3.3 3.6 92 7.2 5.0 144
Togwotee Pass 9580 17.6 13.2 133 21.4 14.4 149
Townsend Creek 8700 6.4 4.5 142 9.3 6.6 141
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Basin Index (%) 158 161
BIGHORN BASIN
Bald Mtn. 9380 11.8 10.0 118 10.6 9.8 108
Bear Trap Meadow 8200 2.9 3.0 97 4.5 4.8 94
Bone Springs Div 9350 9.1 9.0 101 9.8 8.7 113
Grave Springs 8550 3.4 4.5 76 4.6 6.0 77
Kirwin 9550 9.6 5.3 181 12.7 6.7 190
Marquette 8760 4.6 -M * 7.9 -M *
Middle Powder 7760 4.2 6.1 69 5.1 6.9 74
Owl Creek 8975 3.5 3.0 117 5.2 3.3 158
Powder River Pass 9480 3.4 5.9 58 6.6 7.2 92
Shell Creek 9580 9.8 8.6 114 8.1 8.0 101
Timber Creek 7950 3.4 2.8 121 4.7 4.3 109
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Basin Index (%) 105 109
SHOSHONE RIVER
Blackwater 9780 19.1 13.1 146 22.8 12.1 188
Evening Star 9200 18.3 14.3 128 24.6 16.3 151
Marquette 8760 4.6 -M * 7.9 -M *
Sylvan Road 7120 9.2 7.1 130 19.3 10.9 177
Younts Peak 8350 12.4 8.7 143 16.8 9.6 175
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Basin Index (%) 137 171
POWDER RIVER
Bear Trap Meadow 8200 2.9 3.0 97 4.5 4.8 94
Cloud Peak Reservoir 9860 6.9 7.6 91 9.0 7.3 123
Grave Springs 8550 3.4 4.5 76 4.6 6.0 77
Hansen Sawmill 8360 4.4 3.6 122 6.2 4.6 135
Middle Powder 7760 4.2 6.1 69 5.1 6.9 74
Powder River Pass 9480 3.4 5.9 58 6.6 7.2 92
Soldier Park 8720 7.1 -M * 6.5 -M *
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Basin Index (%) 82 98
TONGUE RIVER
Big Goose 7990 5.0 4.4 114 6.1 6.0 102
Bone Springs Div 9350 9.1 9.0 101 9.8 8.7 113
Burgess Junction 7880 5.2 6.1 85 6.7 6.9 97
Dome Lake 8880 6.3 6.4 98 7.8 7.7 101
Little Goose 8870 5.4 -M * 7.6 -M *
Sucker Creek 8880 6.1 6.5 94 6.8 8.0 85
Tie Creek 6870 3.7 3.0 123 6.8 6.6 103
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Basin Index (%) 100 100
BELLE FOURCHE
Cole Canyon 5910 3.1 2.9 107 4.2 5.3 79
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Basin Index (%) 107 79
CHEYENNE RIVER BASIN
Blind Park 6890 3.7 4.1 90 4.8 7.2 67
North Rapid Creek 6130 4.0 3.8 105 4.3 5.8 74
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Basin Index (%) 97 70
UPPER N. PLATTE
Arapaho Ridge 10960 17.9 11.2 160 18.7 12.9 145
Blackhall Mtn 9820 23.4 -M * 24.6 -M *
Columbine 9160 17.7 12.9 137 19.7 14.6 135
Divide Peak 8880 12.0 11.0 109 14.5 12.5 116
Joe Wright 10120 13.9 11.9 117 19.2 14.6 132
Laprele Creek 8375 6.4 5.2 123 6.2 6.9 90
Med Bow 10500 24.6 -M * 23.4 -M *
North French Creek 10130 15.4 14.4 107 17.0 15.2 112
Never Summer 10280 -M 10.9 * -M -M *
Old Battle 10000 22.7 16.3 139 24.8 20.3 122
Rawah 9020 9.3 5.6 166 11.9 8.6 138
Sage Creek Basin 7850 9.8 7.4 132 10.3 8.8 117
Sand Lake 10050 18.2 14.8 123 17.7 13.7 129
South Brush Creek 8440 6.5 6.4 102 7.9 8.7 91
Tower 10500 27.7 23.9 116 30.6 23.0 133
Webber Springs 9250 18.1 12.2 148 21.9 15.4 142
Willow Creek Pass 9540 12.5 6.5 192 12.7 7.6 167
Zirkel 9340 25.7 16.1 160 26.5 16.9 157
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Basin Index (%) 133 130
SWEETWATER
Deer Park 9700 17.3 7.7 225 20.8 11.3 184
Larsen Creek 9000 11.5 6.4 180 15.0 -M *
South Pass 9040 16.5 8.0 206 16.2 10.0 162
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Basin Index (%) 205 174
LOWER N. PLATTE
Casper Mtn. 7900 5.9 6.9 86 6.2 8.4 74
Laprele Creek 8375 6.4 5.2 123 6.2 6.9 90
Reno Hill 8400 -M 6.9 * -M 8.2 *
Windy Peak 7900 5.1 3.8 134 5.8 5.9 98
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Basin Index (%) 109 86
LARAMIE RIVER
Brooklyn Lake 10240 15.2 11.2 136 14.2 11.6 122
Cinnabar Park 9574 12.6 11.7 108 15.1 14.5 104
Crow Creek 8330 4.0 5.3 75 5.7 6.1 93
Deadman Hill 10220 13.6 8.6 158 13.5 9.4 144
Rawah 9020 9.3 5.6 166 11.9 8.6 138
Roach 9700 11.6 9.1 127 13.7 10.8 127
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Basin Index (%) 129 121
S. PLATTE
Black Mountain 8920 7.0 -M * 8.3 -M *
Crow Creek 8330 4.0 5.3 75 5.7 6.1 93
Deadman Hill 10220 13.6 8.6 158 13.5 9.4 144
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Basin Index (%) 127 124
LITTLE SNAKE RIVER
Battle Mountain 7440 7.9 6.0 132 10.7 8.8 122
Divide Peak 8880 12.0 11.0 109 14.5 12.5 116
Elk River 8700 14.7 9.7 152 14.3 11.5 124
Little Snake River 8915 20.8 12.7 164 26.0 18.6 140
Old Battle 10000 22.7 16.3 139 24.8 20.3 122
Sage Creek Basin 7850 9.8 7.4 132 10.3 8.8 117
Sandstone RS 8150 10.0 7.2 139 10.8 10.8 100
Whiskey Park 8950 18.1 14.5 125 20.2 15.9 127
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Basin Index (%) 137 123
UPPER GREEN RIVER
Big Sandy Opening 9080 12.5 7.0 179 14.9 7.6 196
Blind Bull Sum 8650 21.7 12.6 172 -M 11.6 *
East Rim Divide 7930 10.3 6.0 172 12.6 7.0 180
Elkhart Park G.S. 9400 9.3 6.8 137 14.6 7.8 187
Gros Ventre Summit 8750 9.4 7.6 124 13.7 7.5 183
Gunsight Pass 9820 10.2 7.7 132 14.2 8.0 178
Kendall R.S. 7740 11.9 6.8 175 16.2 8.3 195
Loomis Park 8240 14.3 8.4 170 19.4 10.2 190
New Fork Lake 8340 9.5 6.0 158 9.9 6.4 155
Pocket Creek 9360 -M -M * -M -M *
Snider Basin 8060 11.4 6.5 175 16.1 8.3 194
Spring Creek Divide 9000 19.3 12.6 153 22.6 13.9 163
Triple Peak 8500 21.0 11.6 181 23.2 14.3 162
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Basin Index (%) 161 179
LOWER GREEN RIVER
Blacks Fork Jct 8870 7.9 -M * 9.9 -M *
Buck Pasture 9700 12.1 -M * 14.8 -M *
EF Blacks Fork GS 9360 8.6 -M * 9.4 -M *
Hams Fork 7840 10.3 6.2 166 12.4 6.6 188
Hewinta 9519 8.2 5.0 164 10.5 7.8 135
Hickerson Park 9145 5.6 3.2 175 6.0 5.7 105
Hole-in-Rock 9150 4.7 3.6 131 6.6 5.4 122
Indian Creek 9425 20.0 13.1 153 -M 12.6 *
Kelley R.S. 8180 14.0 7.8 179 19.1 10.5 182
Spirit Lk 10235 8.5 -M * 10.1 -M *
Steel Creek Park 10200 11.1 7.5 148 12.7 9.0 141
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Basin Index (%) 159 150
UPPER BEAR RIVER
Bear River RS 8777 8.9 -M * 10.8 -M *
Bug Lake 7950 -M 9.0 * -M 11.2 *
Burts Miller Ranch 8000 4.9 -M * 5.6 -M *
Chalk Creek #1 8993 19.7 11.9 166 -M 14.0 *
Hayden Fork 9212 13.8 7.6 182 18.3 11.8 155
Kelley R.S. 8180 14.0 7.8 179 19.1 10.5 182
Lily Lake 9156 10.5 6.7 157 12.0 9.7 124
Monte Cristo 8960 19.0 13.9 137 -M 14.7 *
Salt River Summit 7760 11.2 6.8 165 16.5 9.6 172
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Basin Index (%) 161 158*
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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.