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 8 , 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 11.0 8.1 136 18.8 11.0 171
Black Bear 8170 16.4 19.2 85 25.9 19.7 131
Blind Bull Sum 8650 14.7 10.4 141 15.1 10.2 148
Cottonwood Creek 7670 11.1 9.1 122 18.0 12.4 145
East Rim Divide 7930 7.7 4.9 157 10.3 6.1 169
Grand Targhee 9260 24.6 19.6 126 23.1 16.8 138
Granite Creek 6770 10.5 7.2 146 16.8 10.5 160
Grassy Lake 7265 16.1 14.5 111 27.6 18.9 146
Gros Ventre Summit 8750 6.9 6.7 103 11.1 6.6 168
Gunsight Pass 9820 7.7 6.8 113 12.0 7.1 169
Lewis Lake Divide 7850 13.0 14.7 88 24.6 18.6 132
Phillips Bench 8200 12.3 12.4 99 21.9 14.3 153
Salt River Summit 7760 6.4 5.4 119 12.3 8.3 148
Snake River Station 6920 10.4 7.6 137 19.1 12.2 157
Spring Creek Divide 9000 13.9 10.9 128 19.2 12.1 159
Thumb Divide 7980 6.8 7.0 97 12.9 9.7 133
Togwotee Pass 9580 14.7 12.0 122 18.3 12.7 144
Two Ocean Plateau 9240 18.3 13.9 132 19.6 13.9 141
Willow Creek 8380 12.8 12.3 104 23.8 17.2 138
Younts Peak 8350 8.7 7.4 118 13.5 8.6 157
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Basin Index (%) 116 147
MADISON-GALLATIN
Black Bear 8170 16.4 19.2 85 25.9 19.7 131
Canyon 7870 7.0 6.3 111 13.3 8.6 155
Madison Plateau 7750 9.6 11.0 87 19.4 13.8 141
West Yellowstone 6700 5.8 5.4 107 13.2 7.8 169
Whiskey Creek 6800 6.2 7.6 82 14.0 10.8 130
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Basin Index (%) 91 141
YELLOWSTONE
Beartooth Lake 9360 12.3 10.9 113 10.2 10.1 101
Burnt Mtn 5880 3.9 1.9 205 7.8 7.0 111
Canyon 7870 7.0 6.3 111 13.3 8.6 155
Cole Creek 7850 5.5 6.6 83 5.0 6.7 75
Evening Star 9200 14.6 12.7 115 20.8 14.5 143
Fisher Creek 9100 14.1 16.6 85 19.5 16.6 117
Northeast Entrance 7350 4.9 4.8 102 10.2 6.7 152
Parker Peak 9400 12.9 10.9 118 15.9 9.3 171
Sylvan Lake 8420 10.1 10.3 98 20.5 12.1 169
Thumb Divide 7980 6.8 7.0 97 12.9 9.7 133
Two Ocean Plateau 9240 18.3 13.9 132 19.6 13.9 141
White Mill 8700 11.6 11.2 104 15.0 12.4 121
Wolverine 7650 7.6 5.4 141 11.3 6.8 166
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Basin Index (%) 109 135
WIND RIVER
Burroughs Creek 8750 8.9 -M * 11.5 -M *
Castle Creek 8400 5.4 -M * 7.6 -M *
Cold Springs 9630 4.8 3.5 137 7.4 5.3 140
Deer Park 9700 10.8 6.9 157 14.7 9.9 148
Hobbs Park 10100 9.0 7.0 129 9.7 6.6 147
Kirwin 9550 7.3 4.7 155 10.3 6.1 169
Little Warm 9370 5.1 5.0 102 10.0 6.6 152
Owl Creek 8975 3.1 2.8 111 4.5 3.0 150
South Pass 9040 10.1 7.0 144 10.2 9.0 113
St. Lawrence Alt 8620 2.5 3.3 76 6.3 4.5 140
Togwotee Pass 9580 14.7 12.0 122 18.3 12.7 144
Townsend Creek 8700 4.6 4.2 110 7.6 6.1 125
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Basin Index (%) 128 142
BIGHORN BASIN
Bald Mtn. 9380 10.7 9.3 115 9.5 8.6 110
Bear Trap Meadow 8200 2.7 2.7 100 4.3 4.4 98
Bone Springs Div 9350 7.9 7.8 101 8.5 7.8 109
Grave Springs 8550 3.1 3.8 82 4.5 5.4 83
Kirwin 9550 7.3 4.7 155 10.3 6.1 169
Marquette 8760 4.2 -M * 7.2 -M *
Middle Powder 7760 4.0 5.3 75 4.9 6.3 78
Owl Creek 8975 3.1 2.8 111 4.5 3.0 150
Powder River Pass 9480 2.9 5.3 55 5.9 6.5 91
Shell Creek 9580 8.8 7.4 119 7.3 7.1 103
Timber Creek 7950 3.1 2.2 141 4.4 4.0 110
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Basin Index (%) 104 108
SHOSHONE RIVER
Blackwater 9780 15.9 11.5 138 19.7 10.8 182
Evening Star 9200 14.6 12.7 115 20.8 14.5 143
Marquette 8760 4.2 -M * 7.2 -M *
Sylvan Road 7120 7.2 6.0 120 17.3 9.8 177
Younts Peak 8350 8.7 7.4 118 13.5 8.6 157
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Basin Index (%) 123 163
POWDER RIVER
Bear Trap Meadow 8200 2.7 2.7 100 4.3 4.4 98
Cloud Peak Reservoir 9860 5.8 6.6 88 7.9 6.6 120
Grave Springs 8550 3.1 3.8 82 4.5 5.4 83
Hansen Sawmill 8360 3.8 3.3 115 5.8 4.3 135
Middle Powder 7760 4.0 5.3 75 4.9 6.3 78
Powder River Pass 9480 2.9 5.3 55 5.9 6.5 91
Soldier Park 8720 6.4 -M * 6.1 -M *
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Basin Index (%) 83 99
TONGUE RIVER
Big Goose 7990 4.6 3.9 118 5.7 5.6 102
Bone Springs Div 9350 7.9 7.8 101 8.5 7.8 109
Burgess Junction 7880 4.4 5.0 88 6.1 6.3 97
Dome Lake 8880 5.3 5.7 93 7.1 7.1 100
Little Goose 8870 5.0 -M * 7.1 -M *
Sucker Creek 8880 5.3 5.7 93 6.1 7.2 85
Tie Creek 6870 3.3 2.3 143 6.3 6.0 105
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Basin Index (%) 101 100
BELLE FOURCHE
Cole Canyon 5910 2.9 2.4 121 4.0 4.9 82
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Basin Index (%) 121 82
CHEYENNE RIVER BASIN
Blind Park 6890 3.4 3.7 92 4.5 6.5 69
North Rapid Creek 6130 3.7 3.3 112 4.0 5.4 74
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Basin Index (%) 101 71
UPPER N. PLATTE
Arapaho Ridge 10960 13.8 10.4 133 15.1 11.9 127
Blackhall Mtn 9820 15.9 -M * 17.9 -M *
Columbine 9160 13.3 10.2 130 15.5 12.7 122
Divide Peak 8880 8.7 9.5 92 11.4 11.2 102
Joe Wright 10120 9.5 10.2 93 15.2 13.2 115
Laprele Creek 8375 5.1 4.4 116 5.2 6.3 83
Med Bow 10500 19.6 -M * 19.4 -M *
North French Creek 10130 12.3 12.8 96 14.2 13.3 107
Never Summer 10280 -M 9.8 * -M -M *
Old Battle 10000 15.4 14.3 108 17.0 18.0 94
Rawah 9020 7.0 5.0 140 9.7 8.0 121
Sage Creek Basin 7850 7.1 6.5 109 7.7 8.2 94
Sand Lake 10050 14.0 13.1 107 13.8 12.2 113
South Brush Creek 8440 5.3 5.4 98 6.7 7.8 86
Tower 10500 18.8 19.7 95 22.1 20.2 109
Webber Springs 9250 12.2 10.9 112 15.9 13.6 117
Willow Creek Pass 9540 8.7 5.9 147 9.8 7.0 140
Zirkel 9340 17.4 12.2 143 20.8 15.4 135
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Basin Index (%) 112 112
SWEETWATER
Deer Park 9700 10.8 6.9 157 14.7 9.9 148
Larsen Creek 9000 8.4 5.4 156 12.3 -M *
South Pass 9040 10.1 7.0 144 10.2 9.0 113
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Basin Index (%) 152 132
LOWER N. PLATTE
Casper Mtn. 7900 5.2 6.4 81 5.8 7.8 74
Laprele Creek 8375 5.1 4.4 116 5.2 6.3 83
Reno Hill 8400 -M 6.3 * -M 7.6 *
Windy Peak 7900 3.9 3.2 122 5.0 5.4 93
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Basin Index (%) 101 82
LARAMIE RIVER
Brooklyn Lake 10240 11.2 9.1 123 10.6 10.1 105
Cinnabar Park 9574 9.7 10.4 93 12.5 13.0 96
Crow Creek 8330 3.8 4.8 79 5.5 5.8 95
Deadman Hill 10220 10.2 7.6 134 10.3 8.4 123
Rawah 9020 7.0 5.0 140 9.7 8.0 121
Roach 9700 7.8 7.6 103 9.5 9.7 98
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Basin Index (%) 112 106
S. PLATTE
Black Mountain 8920 5.6 -M * 6.9 -M *
Crow Creek 8330 3.8 4.8 79 5.5 5.8 95
Deadman Hill 10220 10.2 7.6 134 10.3 8.4 123
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Basin Index (%) 113 111
LITTLE SNAKE RIVER
Battle Mountain 7440 6.5 4.8 135 9.3 7.8 119
Divide Peak 8880 8.7 9.5 92 11.4 11.2 102
Elk River 8700 10.9 8.1 135 11.8 10.0 118
Little Snake River 8915 14.6 10.5 139 20.0 16.3 123
Old Battle 10000 15.4 14.3 108 17.0 18.0 94
Sage Creek Basin 7850 7.1 6.5 109 7.7 8.2 94
Sandstone RS 8150 7.3 5.4 135 7.7 9.5 81
Whiskey Park 8950 13.3 10.6 125 16.6 13.5 123
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Basin Index (%) 120 107
UPPER GREEN RIVER
Big Sandy Opening 9080 9.6 6.7 143 12.3 6.9 178
Blind Bull Sum 8650 14.7 10.4 141 15.1 10.2 148
East Rim Divide 7930 7.7 4.9 157 10.3 6.1 169
Elkhart Park G.S. 9400 6.6 5.9 112 12.0 7.0 171
Gros Ventre Summit 8750 6.9 6.7 103 11.1 6.6 168
Gunsight Pass 9820 7.7 6.8 113 12.0 7.1 169
Kendall R.S. 7740 8.3 5.4 154 12.7 7.2 176
Loomis Park 8240 10.4 7.0 149 15.7 8.9 176
New Fork Lake 8340 6.9 5.1 135 7.7 5.7 135
Pocket Creek 9360 -M -M * -M -M *
Snider Basin 8060 7.5 5.9 127 12.6 7.3 173
Spring Creek Divide 9000 13.9 10.9 128 19.2 12.1 159
Triple Peak 8500 15.4 9.4 164 20.3 12.3 165
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Basin Index (%) 136 165
LOWER GREEN RIVER
Blacks Fork Jct 8870 6.0 -M * 8.0 -M *
Buck Pasture 9700 8.9 -M * 12.0 -M *
EF Blacks Fork GS 9360 8.5 -M * 7.0 -M *
Hams Fork 7840 6.5 5.1 127 10.3 5.8 178
Hewinta 9519 6.3 4.2 150 8.6 7.0 123
Hickerson Park 9145 5.2 3.1 168 5.6 5.3 106
Hole-in-Rock 9150 4.0 3.2 125 6.0 5.0 120
Indian Creek 9425 13.3 10.8 123 16.3 11.0 148
Kelley R.S. 8180 9.4 6.8 138 15.2 9.2 165
Spirit Lk 10235 7.6 -M * 9.3 -M *
Steel Creek Park 10200 8.7 6.6 132 10.4 8.1 128
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Basin Index (%) 134 141
UPPER BEAR RIVER
Bear River RS 8777 6.1 -M * 8.3 -M *
Bug Lake 7950 11.2 7.0 160 14.6 9.9 147
Burts Miller Ranch 8000 3.3 -M * 4.3 -M *
Chalk Creek #1 8993 13.6 10.7 127 25.1 12.7 198
Hayden Fork 9212 10.3 6.5 158 14.7 10.5 140
Kelley R.S. 8180 9.4 6.8 138 15.2 9.2 165
Lily Lake 9156 7.3 5.6 130 9.6 8.7 110
Monte Cristo 8960 12.8 11.7 109 15.7 13.0 121
Salt River Summit 7760 6.4 5.4 119 12.3 8.3 148
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Basin Index (%) 132 148
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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.