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 6 , 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 7.8 138 18.4 10.8 170
Black Bear 8170 16.1 18.8 86 25.3 19.3 131
Blind Bull Sum 8650 14.2 9.8 145 14.8 10.0 148
Cottonwood Creek 7670 10.6 8.9 119 -M 12.1 *
East Rim Divide 7930 7.3 4.7 155 10.0 5.9 169
Grand Targhee 9260 24.1 18.7 129 22.4 16.2 138
Granite Creek 6770 10.1 6.9 146 16.4 10.2 161
Grassy Lake 7265 15.6 14.0 111 26.9 18.4 146
Gros Ventre Summit 8750 6.7 6.5 103 10.6 6.5 163
Gunsight Pass 9820 7.4 6.6 112 11.6 6.9 168
Lewis Lake Divide 7850 12.3 14.2 87 24.3 18.1 134
Phillips Bench 8200 11.6 11.9 97 21.3 14.0 152
Salt River Summit 7760 6.0 5.2 115 11.8 8.1 146
Snake River Station 6920 10.1 7.3 138 18.9 11.9 159
Spring Creek Divide 9000 13.4 10.7 125 18.7 11.8 158
Thumb Divide 7980 6.3 6.7 94 12.5 9.5 132
Togwotee Pass 9580 14.4 11.7 123 18.0 12.3 146
Two Ocean Plateau 9240 18.1 13.3 136 19.2 13.6 141
Willow Creek 8380 12.2 11.8 103 23.3 16.8 139
Younts Peak 8350 8.1 7.3 111 12.6 8.4 150
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Basin Index (%) 116 147
MADISON-GALLATIN
Black Bear 8170 16.1 18.8 86 25.3 19.3 131
Canyon 7870 7.1 6.0 118 13.2 8.4 157
Madison Plateau 7750 9.4 10.7 88 19.2 13.4 143
West Yellowstone 6700 5.3 5.1 104 13.1 7.6 172
Whiskey Creek 6800 5.6 7.4 76 13.5 10.5 129
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Basin Index (%) 91 142
YELLOWSTONE
Beartooth Lake 9360 11.9 10.6 112 -M 9.8 *
Burnt Mtn 5880 3.8 1.9 200 7.8 7.0 111
Canyon 7870 7.1 6.0 118 13.2 8.4 157
Cole Creek 7850 5.2 6.5 80 4.7 6.6 71
Evening Star 9200 14.4 12.4 116 20.4 14.1 145
Fisher Creek 9100 13.7 16.2 85 19.1 16.1 119
Northeast Entrance 7350 4.8 4.6 104 9.9 6.6 150
Parker Peak 9400 12.3 10.6 116 15.6 9.1 171
Sylvan Lake 8420 10.1 9.9 102 20.2 11.9 170
Thumb Divide 7980 6.3 6.7 94 12.5 9.5 132
Two Ocean Plateau 9240 18.1 13.3 136 19.2 13.6 141
White Mill 8700 11.5 10.8 106 14.6 12.0 122
Wolverine 7650 7.0 5.3 132 10.5 6.6 159
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Basin Index (%) 110 138
WIND RIVER
Burroughs Creek 8750 8.5 -M * 10.9 -M *
Castle Creek 8400 5.2 -M * 7.1 -M *
Cold Springs 9630 4.4 3.4 129 7.0 5.2 135
Deer Park 9700 10.6 6.8 156 14.0 9.8 143
Hobbs Park 10100 8.4 7.0 120 9.1 6.5 140
Kirwin 9550 6.9 4.5 153 9.7 5.9 164
Little Warm 9370 4.6 4.8 96 9.6 6.5 148
Owl Creek 8975 2.8 2.7 104 4.1 3.0 137
South Pass 9040 9.6 6.9 139 9.8 8.8 111
St. Lawrence Alt 8620 1.9 3.2 59 6.0 4.5 133
Togwotee Pass 9580 14.4 11.7 123 18.0 12.3 146
Townsend Creek 8700 4.1 4.2 98 6.6 6.0 110
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Basin Index (%) 123 137
BIGHORN BASIN
Bald Mtn. 9380 10.5 9.1 115 9.0 8.4 107
Bear Trap Meadow 8200 2.1 2.6 81 4.0 4.3 93
Bone Springs Div 9350 7.8 7.7 101 8.1 7.5 108
Grave Springs 8550 3.0 3.7 81 4.4 5.3 83
Kirwin 9550 6.9 4.5 153 9.7 5.9 164
Marquette 8760 3.7 -M * 7.1 -M *
Middle Powder 7760 3.7 5.2 71 3.9 6.2 63
Owl Creek 8975 2.8 2.7 104 4.1 3.0 137
Powder River Pass 9480 2.8 5.2 54 5.4 6.3 86
Shell Creek 9580 8.4 7.4 114 7.0 6.9 101
Timber Creek 7950 2.9 2.2 132 4.4 4.0 110
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Basin Index (%) 101 104
SHOSHONE RIVER
Blackwater 9780 15.4 11.1 139 18.4 10.6 174
Evening Star 9200 14.4 12.4 116 20.4 14.1 145
Marquette 8760 3.7 -M * 7.1 -M *
Sylvan Road 7120 7.0 5.9 119 17.1 9.6 178
Younts Peak 8350 8.1 7.3 111 12.6 8.4 150
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Basin Index (%) 122 160
POWDER RIVER
Bear Trap Meadow 8200 2.1 2.6 81 4.0 4.3 93
Cloud Peak Reservoir 9860 5.5 6.5 85 7.4 6.5 114
Grave Springs 8550 3.0 3.7 81 4.4 5.3 83
Hansen Sawmill 8360 3.6 3.2 112 5.4 4.2 129
Middle Powder 7760 3.7 5.2 71 3.9 6.2 63
Powder River Pass 9480 2.8 5.2 54 5.4 6.3 86
Soldier Park 8720 5.8 -M * 5.8 -M *
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Basin Index (%) 78 93
TONGUE RIVER
Big Goose 7990 4.2 3.9 108 5.5 5.5 100
Bone Springs Div 9350 7.8 7.7 101 8.1 7.5 108
Burgess Junction 7880 4.4 4.9 90 5.7 6.1 93
Dome Lake 8880 5.0 5.6 89 6.9 7.0 99
Little Goose 8870 4.7 -M * 6.7 -M *
Sucker Creek 8880 5.1 5.5 93 5.6 7.0 80
Tie Creek 6870 3.1 2.3 135 5.9 5.8 102
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Basin Index (%) 99 97
BELLE FOURCHE
Cole Canyon 5910 2.9 2.4 121 3.8 4.8 79
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Basin Index (%) 121 79
CHEYENNE RIVER BASIN
Blind Park 6890 3.1 3.6 86 4.8 6.3 76
North Rapid Creek 6130 3.4 3.3 103 3.6 5.2 69
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Basin Index (%) 94 73
UPPER N. PLATTE
Arapaho Ridge 10960 13.7 10.2 134 14.9 11.5 130
Blackhall Mtn 9820 15.7 -M * 17.6 -M *
Columbine 9160 13.0 9.6 135 14.5 12.3 118
Divide Peak 8880 8.4 9.2 91 10.9 11.0 99
Joe Wright 10120 8.7 9.9 88 14.8 12.9 115
Laprele Creek 8375 4.4 4.2 105 4.7 6.2 76
Med Bow 10500 19.3 -M * 19.2 -M *
North French Creek 10130 12.2 12.5 98 14.1 13.0 108
Never Summer 10280 -M 9.5 * -M -M *
Old Battle 10000 15.2 13.8 110 16.5 17.4 95
Rawah 9020 6.9 5.0 138 9.1 7.8 117
Sage Creek Basin 7850 6.7 6.4 105 7.4 8.0 92
Sand Lake 10050 13.3 12.7 105 12.9 11.9 108
South Brush Creek 8440 5.2 5.3 98 6.2 7.6 82
Tower 10500 18.5 19.2 96 21.4 19.6 109
Webber Springs 9250 11.7 10.5 111 -M 13.2 *
Willow Creek Pass 9540 8.6 5.8 148 9.5 6.8 140
Zirkel 9340 17.1 11.3 151 20.4 14.6 140
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Basin Index (%) 112 110
SWEETWATER
Deer Park 9700 10.6 6.8 156 14.0 9.8 143
Larsen Creek 9000 7.8 5.3 147 11.6 -M *
South Pass 9040 9.6 6.9 139 9.8 8.8 111
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Basin Index (%) 147 128
LOWER N. PLATTE
Casper Mtn. 7900 4.7 6.3 75 5.3 7.7 69
Laprele Creek 8375 4.4 4.2 105 4.7 6.2 76
Reno Hill 8400 -M 6.1 * -M 7.4 *
Windy Peak 7900 3.5 3.2 109 4.6 5.3 87
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Basin Index (%) 92 76
LARAMIE RIVER
Brooklyn Lake 10240 10.6 8.7 122 9.9 9.8 101
Cinnabar Park 9574 9.4 10.0 94 12.1 12.4 98
Crow Creek 8330 3.5 4.8 73 5.3 5.7 93
Deadman Hill 10220 9.9 7.4 134 10.1 8.2 123
Rawah 9020 6.9 5.0 138 9.1 7.8 117
Roach 9700 7.6 7.3 104 9.1 9.4 97
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Basin Index (%) 111 104
S. PLATTE
Black Mountain 8920 5.3 -M * 6.6 -M *
Crow Creek 8330 3.5 4.8 73 5.3 5.7 93
Deadman Hill 10220 9.9 7.4 134 10.1 8.2 123
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Basin Index (%) 110 111
LITTLE SNAKE RIVER
Battle Mountain 7440 6.4 4.7 136 -M 7.5 *
Divide Peak 8880 8.4 9.2 91 10.9 11.0 99
Elk River 8700 10.8 7.7 140 11.8 9.7 122
Little Snake River 8915 14.2 9.9 143 19.5 15.9 123
Old Battle 10000 15.2 13.8 110 16.5 17.4 95
Sage Creek Basin 7850 6.7 6.4 105 7.4 8.0 92
Sandstone RS 8150 7.3 5.1 143 7.4 9.2 80
Whiskey Park 8950 12.5 10.2 123 16.3 13.0 125
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Basin Index (%) 122 107
UPPER GREEN RIVER
Big Sandy Opening 9080 9.0 6.6 136 11.8 6.8 174
Blind Bull Sum 8650 14.2 9.8 145 14.8 10.0 148
East Rim Divide 7930 7.3 4.7 155 10.0 5.9 169
Elkhart Park G.S. 9400 6.1 5.8 105 11.7 6.8 172
Gros Ventre Summit 8750 6.7 6.5 103 10.6 6.5 163
Gunsight Pass 9820 7.4 6.6 112 11.6 6.9 168
Kendall R.S. 7740 8.0 5.2 154 12.3 7.0 176
Loomis Park 8240 10.0 6.9 145 15.3 8.7 176
New Fork Lake 8340 6.6 4.9 135 7.2 5.5 131
Pocket Creek 9360 -M -M * -M -M *
Snider Basin 8060 7.1 5.7 125 11.9 7.1 168
Spring Creek Divide 9000 13.4 10.7 125 18.7 11.8 158
Triple Peak 8500 15.0 9.0 167 19.8 12.0 165
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Basin Index (%) 134 164
LOWER GREEN RIVER
Blacks Fork Jct 8870 5.4 -M * 7.7 -M *
Buck Pasture 9700 8.5 -M * 11.9 -M *
EF Blacks Fork GS 9360 8.2 -M * 6.6 -M *
Hams Fork 7840 -M 5.0 * 9.7 5.6 173
Hewinta 9519 5.9 4.1 144 8.1 6.8 119
Hickerson Park 9145 4.8 3.0 160 4.7 5.2 90
Hole-in-Rock 9150 3.6 3.1 116 5.3 4.9 108
Indian Creek 9425 12.9 10.5 123 15.8 10.7 148
Kelley R.S. 8180 9.0 6.6 136 14.6 9.0 162
Spirit Lk 10235 7.4 -M * 9.0 -M *
Steel Creek Park 10200 8.3 6.4 130 10.3 7.9 130
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Basin Index (%) 132 137
UPPER BEAR RIVER
Bear River RS 8777 6.0 -M * 8.0 -M *
Bug Lake 7950 -M 6.8 * 14.1 9.6 147
Burts Miller Ranch 8000 3.0 -M * 3.6 -M *
Chalk Creek #1 8993 13.0 10.3 126 15.4 12.4 124
Hayden Fork 9212 10.2 6.3 162 14.4 10.2 141
Kelley R.S. 8180 9.0 6.6 136 14.6 9.0 162
Lily Lake 9156 7.0 5.5 127 9.5 8.6 110
Monte Cristo 8960 12.5 11.1 113 15.0 12.7 118
Salt River Summit 7760 6.0 5.2 115 11.8 8.1 146
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Basin Index (%) 128 134
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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.