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 7 , 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 10.8 7.9 137 18.5 10.8 171
Black Bear 8170 16.1 19.0 85 25.3 19.5 130
Blind Bull Sum 8650 14.2 10.1 141 14.8 10.1 147
Cottonwood Creek 7670 10.7 9.0 119 17.2 12.2 141
East Rim Divide 7930 7.4 4.8 154 10.0 6.0 167
Grand Targhee 9260 24.2 19.1 127 22.6 16.6 136
Granite Creek 6770 10.1 7.0 144 16.3 10.3 158
Grassy Lake 7265 15.6 14.2 110 26.9 18.6 145
Gros Ventre Summit 8750 6.7 6.6 102 10.7 6.6 162
Gunsight Pass 9820 7.5 6.7 112 11.7 7.0 167
Lewis Lake Divide 7850 12.3 14.5 85 24.3 18.2 134
Phillips Bench 8200 11.6 12.1 96 21.4 14.1 152
Salt River Summit 7760 6.1 5.3 115 11.9 8.2 145
Snake River Station 6920 10.1 7.4 136 18.9 12.0 158
Spring Creek Divide 9000 13.5 10.8 125 18.8 11.9 158
Thumb Divide 7980 6.3 6.8 93 12.5 9.5 132
Togwotee Pass 9580 14.4 11.8 122 18.0 12.5 144
Two Ocean Plateau 9240 18.1 13.6 133 19.3 13.7 141
Willow Creek 8380 12.4 12.1 102 23.4 17.0 138
Younts Peak 8350 8.2 7.3 112 12.8 8.4 152
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Basin Index (%) 115 146
MADISON-GALLATIN
Black Bear 8170 16.1 19.0 85 25.3 19.5 130
Canyon 7870 7.0 6.1 115 13.3 8.5 156
Madison Plateau 7750 9.4 10.8 87 18.7 13.6 138
West Yellowstone 6700 5.3 5.3 100 13.1 7.7 170
Whiskey Creek 6800 5.7 7.5 76 13.6 10.6 128
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Basin Index (%) 89 140
YELLOWSTONE
Beartooth Lake 9360 12.0 10.7 112 9.9 9.9 100
Burnt Mtn 5880 3.9 1.9 205 7.8 7.0 111
Canyon 7870 7.0 6.1 115 13.3 8.5 156
Cole Creek 7850 5.4 6.5 83 4.8 6.6 73
Evening Star 9200 14.3 12.5 114 20.6 14.2 145
Fisher Creek 9100 13.8 16.4 84 19.1 16.3 117
Northeast Entrance 7350 4.9 4.7 104 9.9 6.7 148
Parker Peak 9400 12.3 10.8 114 15.6 9.2 170
Sylvan Lake 8420 10.2 10.1 101 20.3 12.0 169
Thumb Divide 7980 6.3 6.8 93 12.5 9.5 132
Two Ocean Plateau 9240 18.1 13.6 133 19.3 13.7 141
White Mill 8700 11.5 11.0 105 14.6 12.2 120
Wolverine 7650 7.0 5.4 130 10.6 6.7 158
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Basin Index (%) 109 135
WIND RIVER
Burroughs Creek 8750 8.6 -M * 11.1 -M *
Castle Creek 8400 5.2 -M * 7.2 -M *
Cold Springs 9630 4.5 3.4 132 7.1 5.2 137
Deer Park 9700 10.6 6.8 156 14.4 9.8 147
Hobbs Park 10100 8.6 7.0 123 9.4 6.6 142
Kirwin 9550 7.0 4.6 152 10.0 6.0 167
Little Warm 9370 4.8 4.9 98 9.7 6.6 147
Owl Creek 8975 2.8 2.7 104 4.3 3.0 143
South Pass 9040 9.7 6.9 141 10.0 8.9 112
St. Lawrence Alt 8620 2.1 3.2 66 6.1 4.5 136
Togwotee Pass 9580 14.4 11.8 122 18.0 12.5 144
Townsend Creek 8700 4.3 4.2 102 7.1 6.1 116
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Basin Index (%) 124 139
BIGHORN BASIN
Bald Mtn. 9380 10.5 9.2 114 9.2 8.5 108
Bear Trap Meadow 8200 2.5 2.7 93 4.1 4.4 93
Bone Springs Div 9350 7.8 7.8 100 8.2 7.6 108
Grave Springs 8550 3.0 3.8 79 4.4 5.4 81
Kirwin 9550 7.0 4.6 152 10.0 6.0 167
Marquette 8760 3.8 -M * 7.2 -M *
Middle Powder 7760 3.9 5.3 74 4.5 6.3 71
Owl Creek 8975 2.8 2.7 104 4.3 3.0 143
Powder River Pass 9480 2.8 5.2 54 5.5 6.4 86
Shell Creek 9580 8.5 7.4 115 7.1 7.0 101
Timber Creek 7950 3.0 2.2 136 4.4 4.0 110
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Basin Index (%) 102 105
SHOSHONE RIVER
Blackwater 9780 15.5 11.3 137 18.9 10.7 177
Evening Star 9200 14.3 12.5 114 20.6 14.2 145
Marquette 8760 3.8 -M * 7.2 -M *
Sylvan Road 7120 7.1 6.0 118 17.2 9.7 177
Younts Peak 8350 8.2 7.3 112 12.8 8.4 152
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Basin Index (%) 122 162
POWDER RIVER
Bear Trap Meadow 8200 2.5 2.7 93 4.1 4.4 93
Cloud Peak Reservoir 9860 5.6 6.6 85 7.6 6.6 115
Grave Springs 8550 3.0 3.8 79 4.4 5.4 81
Hansen Sawmill 8360 3.7 3.2 116 5.5 4.2 131
Middle Powder 7760 3.9 5.3 74 4.5 6.3 71
Powder River Pass 9480 2.8 5.2 54 5.5 6.4 86
Soldier Park 8720 6.1 -M * 5.9 -M *
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Basin Index (%) 80 95
TONGUE RIVER
Big Goose 7990 4.4 3.9 113 5.6 5.5 102
Bone Springs Div 9350 7.8 7.8 100 8.2 7.6 108
Burgess Junction 7880 4.4 5.0 88 5.9 6.2 95
Dome Lake 8880 5.1 5.6 91 7.0 7.1 99
Little Goose 8870 4.8 -M * 6.8 -M *
Sucker Creek 8880 5.2 5.6 93 5.7 7.1 80
Tie Creek 6870 3.2 2.3 139 6.1 5.9 103
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Basin Index (%) 100 98
BELLE FOURCHE
Cole Canyon 5910 2.9 2.4 121 3.9 4.8 81
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Basin Index (%) 121 81
CHEYENNE RIVER BASIN
Blind Park 6890 3.2 3.6 89 4.4 6.3 70
North Rapid Creek 6130 3.5 3.3 106 3.7 5.3 70
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Basin Index (%) 97 70
UPPER N. PLATTE
Arapaho Ridge 10960 13.7 10.3 133 14.9 11.8 126
Blackhall Mtn 9820 15.6 -M * 17.6 -M *
Columbine 9160 13.0 9.9 131 14.6 12.5 117
Divide Peak 8880 8.5 9.4 90 11.1 11.1 100
Joe Wright 10120 9.0 10.1 89 15.0 13.0 115
Laprele Creek 8375 4.5 4.3 105 4.8 6.2 77
Med Bow 10500 19.2 -M * 19.2 -M *
North French Creek 10130 12.0 12.6 95 14.1 13.1 108
Never Summer 10280 -M 9.7 * -M -M *
Old Battle 10000 15.2 14.1 108 16.6 17.7 94
Rawah 9020 6.9 5.0 138 9.3 7.9 118
Sage Creek Basin 7850 6.8 6.4 106 7.6 8.1 94
Sand Lake 10050 13.6 12.9 105 13.3 12.0 111
South Brush Creek 8440 5.1 5.3 96 6.2 7.7 81
Tower 10500 18.5 19.4 95 21.5 19.9 108
Webber Springs 9250 11.9 10.7 111 16.4 13.4 122
Willow Creek Pass 9540 8.5 5.8 147 9.4 6.9 136
Zirkel 9340 17.1 11.7 146 20.4 15.1 135
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Basin Index (%) 111 111
SWEETWATER
Deer Park 9700 10.6 6.8 156 14.4 9.8 147
Larsen Creek 9000 8.0 5.4 148 11.9 -M *
South Pass 9040 9.7 6.9 141 10.0 8.9 112
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Basin Index (%) 148 130
LOWER N. PLATTE
Casper Mtn. 7900 4.8 6.3 76 5.5 7.7 71
Laprele Creek 8375 4.5 4.3 105 4.8 6.2 77
Reno Hill 8400 -M 6.2 * -M 7.5 *
Windy Peak 7900 3.6 3.2 112 4.8 5.4 89
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Basin Index (%) 93 78
LARAMIE RIVER
Brooklyn Lake 10240 10.9 8.9 122 10.3 9.9 104
Cinnabar Park 9574 9.6 10.2 94 12.2 12.7 96
Crow Creek 8330 3.7 4.8 77 5.4 5.7 95
Deadman Hill 10220 10.0 7.5 133 10.2 8.3 123
Rawah 9020 6.9 5.0 138 9.3 7.9 118
Roach 9700 7.7 7.4 104 9.3 9.6 97
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Basin Index (%) 111 105
S. PLATTE
Black Mountain 8920 5.5 -M * 6.8 -M *
Crow Creek 8330 3.7 4.8 77 5.4 5.7 95
Deadman Hill 10220 10.0 7.5 133 10.2 8.3 123
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Basin Index (%) 111 111
LITTLE SNAKE RIVER
Battle Mountain 7440 6.4 4.8 133 -M 7.6 *
Divide Peak 8880 8.5 9.4 90 11.1 11.1 100
Elk River 8700 10.7 7.9 135 11.8 9.9 119
Little Snake River 8915 14.1 10.2 138 19.4 16.2 120
Old Battle 10000 15.2 14.1 108 16.6 17.7 94
Sage Creek Basin 7850 6.8 6.4 106 7.6 8.1 94
Sandstone RS 8150 7.2 5.3 136 7.4 9.3 80
Whiskey Park 8950 12.4 10.4 119 16.3 13.3 123
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Basin Index (%) 119 105
UPPER GREEN RIVER
Big Sandy Opening 9080 9.1 6.7 136 11.9 6.8 175
Blind Bull Sum 8650 14.2 10.1 141 14.8 10.1 147
East Rim Divide 7930 7.4 4.8 154 10.0 6.0 167
Elkhart Park G.S. 9400 6.1 5.9 103 11.7 6.9 170
Gros Ventre Summit 8750 6.7 6.6 102 10.7 6.6 162
Gunsight Pass 9820 7.5 6.7 112 11.7 7.0 167
Kendall R.S. 7740 8.0 5.3 151 12.4 7.1 175
Loomis Park 8240 10.1 6.9 146 15.4 8.8 175
New Fork Lake 8340 6.6 5.0 132 7.4 5.6 132
Pocket Creek 9360 -M -M * -M -M *
Snider Basin 8060 7.1 5.8 122 12.2 7.2 169
Spring Creek Divide 9000 13.5 10.8 125 18.8 11.9 158
Triple Peak 8500 15.1 9.1 166 19.9 12.1 164
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Basin Index (%) 133 163
LOWER GREEN RIVER
Blacks Fork Jct 8870 5.5 -M * 7.8 -M *
Buck Pasture 9700 8.5 -M * 11.9 -M *
EF Blacks Fork GS 9360 8.2 -M * 6.8 -M *
Hams Fork 7840 6.0 5.0 120 9.9 5.7 174
Hewinta 9519 6.0 4.1 146 8.3 7.0 119
Hickerson Park 9145 4.9 3.0 163 5.0 5.2 96
Hole-in-Rock 9150 3.7 3.1 119 5.5 4.9 112
Indian Creek 9425 12.9 10.7 121 15.9 10.8 147
Kelley R.S. 8180 9.0 6.7 134 14.7 9.1 162
Spirit Lk 10235 7.3 -M * 9.0 -M *
Steel Creek Park 10200 8.4 6.5 129 10.3 8.0 129
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Basin Index (%) 130 137
UPPER BEAR RIVER
Bear River RS 8777 6.0 -M * 8.1 -M *
Bug Lake 7950 10.8 6.9 157 14.2 9.8 145
Burts Miller Ranch 8000 3.2 -M * 4.0 -M *
Chalk Creek #1 8993 13.1 10.5 125 15.4 12.6 122
Hayden Fork 9212 10.2 6.4 159 14.5 10.4 139
Kelley R.S. 8180 9.0 6.7 134 14.7 9.1 162
Lily Lake 9156 7.2 5.5 131 9.6 8.7 110
Monte Cristo 8960 12.5 11.4 110 15.4 12.9 119
Salt River Summit 7760 6.1 5.3 115 11.9 8.2 145
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Basin Index (%) 131 133
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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.