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 3 , 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 10.5 7.4 142 18.2 10.3 177
Black Bear 8170 16.0 18.3 87 25.4 18.6 137
Blind Bull Sum 8650 13.7 9.4 146 14.9 9.6 155
Cottonwood Creek 7670 9.9 8.7 114 16.7 11.6 144
East Rim Divide 7930 7.0 4.5 156 9.6 5.7 168
Grand Targhee 9260 23.8 17.7 134 22.3 15.3 146
Granite Creek 6770 9.8 6.7 146 16.0 9.8 163
Grassy Lake 7265 15.5 13.2 117 27.2 17.7 154
Gros Ventre Summit 8750 6.4 6.3 102 10.6 6.3 168
Gunsight Pass 9820 7.1 6.3 113 11.4 6.7 170
Lewis Lake Divide 7850 12.5 13.6 92 24.3 17.4 140
Phillips Bench 8200 11.5 11.3 102 21.0 13.4 157
Salt River Summit 7760 5.5 5.0 110 11.3 7.8 145
Snake River Station 6920 10.0 6.7 149 18.7 11.4 164
Spring Creek Divide 9000 12.4 10.4 119 17.8 11.2 159
Thumb Divide 7980 6.4 6.4 100 12.4 9.2 135
Togwotee Pass 9580 14.1 11.3 125 17.7 11.9 149
Two Ocean Plateau 9240 18.0 12.9 140 19.2 13.2 145
Willow Creek 8380 11.6 11.3 103 22.6 16.1 140
Younts Peak 8350 8.0 7.1 113 12.6 8.0 158
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Basin Index (%) 118 151
MADISON-GALLATIN
Black Bear 8170 16.0 18.3 87 25.4 18.6 137
Canyon 7870 6.9 5.7 121 13.0 8.1 160
Madison Plateau 7750 9.4 10.5 90 19.1 13.0 147
West Yellowstone 6700 5.5 4.8 115 13.0 7.3 178
Whiskey Creek 6800 5.9 7.0 84 13.7 10.2 134
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Basin Index (%) 94 147
YELLOWSTONE
Beartooth Lake 9360 12.0 10.2 118 5.7 9.4 61
Burnt Mtn 5880 3.7 1.9 195 7.7 6.9 112
Canyon 7870 6.9 5.7 121 13.0 8.1 160
Cole Creek 7850 5.0 6.4 78 4.5 6.5 69
Evening Star 9200 14.3 11.9 120 20.2 13.6 149
Fisher Creek 9100 13.7 15.4 89 19.0 15.5 123
Northeast Entrance 7350 4.7 4.3 109 9.9 6.3 157
Parker Peak 9400 12.3 10.2 121 15.5 8.7 178
Sylvan Lake 8420 9.8 9.4 104 20.0 11.5 174
Thumb Divide 7980 6.4 6.4 100 12.4 9.2 135
Two Ocean Plateau 9240 18.0 12.9 140 19.2 13.2 145
White Mill 8700 11.4 10.3 111 14.6 11.6 126
Wolverine 7650 6.8 5.0 136 10.1 6.4 158
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Basin Index (%) 114 135
WIND RIVER
Burroughs Creek 8750 8.3 -M * 10.6 -M *
Castle Creek 8400 4.9 -M * 7.0 -M *
Cold Springs 9630 4.2 3.2 131 6.4 5.1 125
Deer Park 9700 9.9 6.6 150 13.8 9.4 147
Hobbs Park 10100 8.2 6.7 122 8.7 6.4 136
Kirwin 9550 6.8 4.4 155 9.7 5.8 167
Little Warm 9370 4.4 4.6 96 9.2 6.3 146
Owl Creek 8975 2.7 2.6 104 4.0 2.9 138
South Pass 9040 9.3 6.8 137 9.5 8.6 110
St. Lawrence Alt 8620 1.6 3.2 50 5.7 4.4 130
Togwotee Pass 9580 14.1 11.3 125 17.7 11.9 149
Townsend Creek 8700 4.0 4.2 95 6.6 5.9 112
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Basin Index (%) 122 137
BIGHORN BASIN
Bald Mtn. 9380 10.4 8.8 118 8.8 8.1 109
Bear Trap Meadow 8200 2.1 2.6 81 3.9 4.3 91
Bone Springs Div 9350 7.7 7.4 104 8.1 7.3 111
Grave Springs 8550 2.9 3.5 83 4.1 5.2 79
Kirwin 9550 6.8 4.4 155 9.7 5.8 167
Marquette 8760 3.4 -M * 6.8 -M *
Middle Powder 7760 3.6 5.0 72 3.7 6.1 61
Owl Creek 8975 2.7 2.6 104 4.0 2.9 138
Powder River Pass 9480 2.7 4.9 55 5.1 6.1 84
Shell Creek 9580 8.3 7.3 114 6.7 6.6 102
Timber Creek 7950 2.8 2.2 127 4.2 3.9 108
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Basin Index (%) 103 104
SHOSHONE RIVER
Blackwater 9780 15.3 10.7 143 18.5 10.2 181
Evening Star 9200 14.3 11.9 120 20.2 13.6 149
Marquette 8760 3.4 -M * 6.8 -M *
Sylvan Road 7120 6.9 5.7 121 16.8 9.3 181
Younts Peak 8350 8.0 7.1 113 12.6 8.0 158
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Basin Index (%) 126 166
POWDER RIVER
Bear Trap Meadow 8200 2.1 2.6 81 3.9 4.3 91
Cloud Peak Reservoir 9860 5.5 6.4 86 7.3 6.4 114
Grave Springs 8550 2.9 3.5 83 4.1 5.2 79
Hansen Sawmill 8360 3.5 3.1 113 5.3 4.1 129
Middle Powder 7760 3.6 5.0 72 3.7 6.1 61
Powder River Pass 9480 2.7 4.9 55 5.1 6.1 84
Soldier Park 8720 5.7 -M * 5.7 -M *
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Basin Index (%) 80 91
TONGUE RIVER
Big Goose 7990 4.0 3.8 105 5.3 5.4 98
Bone Springs Div 9350 7.7 7.4 104 8.1 7.3 111
Burgess Junction 7880 4.3 4.8 90 5.4 6.0 90
Dome Lake 8880 5.0 5.6 89 6.7 6.8 99
Little Goose 8870 4.6 -M * 6.5 -M *
Sucker Creek 8880 5.1 5.3 96 5.3 6.8 78
Tie Creek 6870 3.0 2.2 136 5.1 5.7 89
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Basin Index (%) 100 94
BELLE FOURCHE
Cole Canyon 5910 2.8 2.3 122 3.7 4.7 79
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Basin Index (%) 122 79
CHEYENNE RIVER BASIN
Blind Park 6890 3.1 3.3 94 4.8 6.1 79
North Rapid Creek 6130 3.4 3.2 106 3.6 5.1 71
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Basin Index (%) 100 75
UPPER N. PLATTE
Arapaho Ridge 10960 11.8 9.8 120 13.2 11.1 119
Blackhall Mtn 9820 13.6 -M * 15.7 -M *
Columbine 9160 10.8 9.0 120 13.2 11.8 112
Divide Peak 8880 7.2 8.8 82 9.7 10.6 92
Joe Wright 10120 8.0 9.6 83 13.5 12.3 110
Laprele Creek 8375 4.7 4.0 118 4.6 6.0 77
Med Bow 10500 17.2 -M * 17.4 -M *
North French Creek 10130 10.7 12.0 89 12.7 12.4 102
Never Summer 10280 -M 9.0 * -M -M *
Old Battle 10000 12.9 13.0 99 14.6 16.8 87
Rawah 9020 5.6 4.7 119 8.2 7.6 108
Sage Creek Basin 7850 5.5 6.1 90 6.8 7.8 87
Sand Lake 10050 12.0 12.2 98 11.6 11.5 101
South Brush Creek 8440 4.6 5.0 92 5.9 7.3 81
Tower 10500 14.8 18.9 78 18.6 18.8 99
Webber Springs 9250 10.1 9.9 102 13.2 12.8 103
Willow Creek Pass 9540 7.7 5.6 138 9.0 6.6 136
Zirkel 9340 13.5 10.5 129 17.2 14.1 122
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Basin Index (%) 101 103
SWEETWATER
Deer Park 9700 9.9 6.6 150 13.8 9.4 147
Larsen Creek 9000 7.5 5.1 147 11.4 -M *
South Pass 9040 9.3 6.8 137 9.5 8.6 110
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Basin Index (%) 144 129
LOWER N. PLATTE
Casper Mtn. 7900 5.0 6.0 83 5.4 7.5 72
Laprele Creek 8375 4.7 4.0 118 4.6 6.0 77
Reno Hill 8400 -M 5.9 * -M 7.2 *
Windy Peak 7900 3.5 3.1 113 4.4 5.2 85
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Basin Index (%) 101 77
LARAMIE RIVER
Brooklyn Lake 10240 9.1 8.1 112 9.1 9.5 96
Cinnabar Park 9574 8.0 9.4 85 10.8 11.9 91
Crow Creek 8330 2.5 4.6 54 4.4 5.6 79
Deadman Hill 10220 8.4 7.3 115 8.5 7.9 108
Rawah 9020 5.6 4.7 119 8.2 7.6 108
Roach 9700 6.1 7.0 87 7.8 9.1 86
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Basin Index (%) 97 95
S. PLATTE
Black Mountain 8920 4.5 -M * 5.9 -M *
Crow Creek 8330 2.5 4.6 54 4.4 5.6 79
Deadman Hill 10220 8.4 7.3 115 8.5 7.9 108
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Basin Index (%) 92 96
LITTLE SNAKE RIVER
Battle Mountain 7440 5.0 4.4 114 7.1 7.2 99
Divide Peak 8880 7.2 8.8 82 9.7 10.6 92
Elk River 8700 9.5 7.1 134 10.6 9.3 114
Little Snake River 8915 12.6 9.3 135 17.9 15.2 118
Old Battle 10000 12.9 13.0 99 14.6 16.8 87
Sage Creek Basin 7850 5.5 6.1 90 6.8 7.8 87
Sandstone RS 8150 5.9 4.7 126 6.0 8.8 68
Whiskey Park 8950 10.9 9.8 111 14.1 12.5 113
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Basin Index (%) 110 98
UPPER GREEN RIVER
Big Sandy Opening 9080 8.8 6.2 142 11.5 6.5 177
Blind Bull Sum 8650 13.7 9.4 146 14.9 9.6 155
East Rim Divide 7930 7.0 4.5 156 9.6 5.7 168
Elkhart Park G.S. 9400 5.7 5.8 98 11.3 6.6 171
Gros Ventre Summit 8750 6.4 6.3 102 10.6 6.3 168
Gunsight Pass 9820 7.1 6.3 113 11.4 6.7 170
Kendall R.S. 7740 7.7 5.0 154 12.0 6.8 176
Loomis Park 8240 9.7 6.8 143 14.9 8.4 177
New Fork Lake 8340 6.4 4.7 136 7.1 5.3 134
Pocket Creek 9360 -M -M * -M -M *
Snider Basin 8060 6.3 5.4 117 11.5 6.8 169
Spring Creek Divide 9000 12.4 10.4 119 17.8 11.2 159
Triple Peak 8500 14.2 8.6 165 19.1 11.4 168
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Basin Index (%) 133 166
LOWER GREEN RIVER
Blacks Fork Jct 8870 5.0 -M * 6.9 -M *
Buck Pasture 9700 7.3 -M * 10.4 -M *
EF Blacks Fork GS 9360 7.3 -M * 6.2 -M *
Hams Fork 7840 5.2 4.7 111 8.9 5.4 165
Hewinta 9519 5.2 3.9 133 7.4 6.6 112
Hickerson Park 9145 4.6 2.9 159 5.1 5.0 102
Hole-in-Rock 9150 3.2 3.0 107 5.2 4.7 111
Indian Creek 9425 11.8 10.1 117 16.0 10.2 157
Kelley R.S. 8180 8.2 6.3 130 13.8 8.7 159
Spirit Lk 10235 7.0 -M * 8.8 -M *
Steel Creek Park 10200 7.4 6.3 117 9.2 7.7 119
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Basin Index (%) 123 136
UPPER BEAR RIVER
Bear River RS 8777 5.1 -M * 7.2 -M *
Bug Lake 7950 8.7 6.4 136 12.2 9.3 131
Burts Miller Ranch 8000 2.6 -M * 3.7 -M *
Chalk Creek #1 8993 11.4 9.9 115 13.7 11.9 115
Hayden Fork 9212 8.5 6.1 139 12.0 9.9 121
Kelley R.S. 8180 8.2 6.3 130 13.8 8.7 159
Lily Lake 9156 5.7 5.3 108 8.3 8.2 101
Monte Cristo 8960 10.9 10.3 106 14.0 12.2 115
Salt River Summit 7760 5.5 5.0 110 11.3 7.8 145
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Basin Index (%) 119 125
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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.