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 THURSDAY: JANUARY 5 , 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 7.7 140 18.5 10.6 175
Black Bear 8170 16.1 18.6 87 25.4 19.1 133
Blind Bull Sum 8650 14.4 9.6 150 15.0 9.9 152
Cottonwood Creek 7670 10.8 8.8 123 17.7 11.9 149
East Rim Divide 7930 7.5 4.6 163 10.1 5.8 174
Grand Targhee 9260 24.2 18.3 132 22.5 15.5 145
Granite Creek 6770 10.4 6.8 153 16.6 10.1 164
Grassy Lake 7265 15.7 13.7 115 27.2 18.2 149
Gros Ventre Summit 8750 6.8 6.4 106 10.9 6.4 170
Gunsight Pass 9820 7.4 6.5 114 11.7 6.8 172
Lewis Lake Divide 7850 12.5 14.0 89 24.3 17.9 136
Phillips Bench 8200 11.9 11.7 102 21.4 13.8 155
Salt River Summit 7760 6.3 5.2 121 12.1 8.0 151
Snake River Station 6920 10.2 7.2 142 19.0 11.7 162
Spring Creek Divide 9000 13.5 10.7 126 18.8 11.6 162
Thumb Divide 7980 6.5 6.6 98 12.4 9.4 132
Togwotee Pass 9580 14.4 11.6 124 18.0 12.1 149
Two Ocean Plateau 9240 18.1 13.1 138 19.2 13.4 143
Willow Creek 8380 12.4 11.6 107 23.5 16.5 142
Younts Peak 8350 8.1 7.2 112 12.4 8.2 151
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Basin Index (%) 119 151
MADISON-GALLATIN
Black Bear 8170 16.1 18.6 87 25.4 19.1 133
Canyon 7870 7.1 5.9 120 13.1 8.3 158
Madison Plateau 7750 9.5 10.6 90 19.2 13.3 144
West Yellowstone 6700 5.5 5.0 110 13.1 7.5 175
Whiskey Creek 6800 6.0 7.2 83 13.9 10.4 134
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Basin Index (%) 93 145
YELLOWSTONE
Beartooth Lake 9360 11.8 10.4 113 -M 9.7 *
Burnt Mtn 5880 3.7 1.9 195 7.8 6.9 113
Canyon 7870 7.1 5.9 120 13.1 8.3 158
Cole Creek 7850 5.1 6.4 80 4.6 6.6 70
Evening Star 9200 14.4 12.3 117 20.3 13.9 146
Fisher Creek 9100 13.7 16.0 86 18.9 15.9 119
Northeast Entrance 7350 4.9 4.6 107 9.9 6.5 152
Parker Peak 9400 -M 10.5 * 15.5 9.0 172
Sylvan Lake 8420 10.2 9.7 105 20.2 11.7 173
Thumb Divide 7980 6.5 6.6 98 12.4 9.4 132
Two Ocean Plateau 9240 18.1 13.1 138 19.2 13.4 143
White Mill 8700 11.5 10.6 108 14.5 11.9 122
Wolverine 7650 7.0 5.2 135 10.2 6.5 157
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Basin Index (%) 111 139
WIND RIVER
Burroughs Creek 8750 8.6 -M * 11.0 -M *
Castle Creek 8400 5.3 -M * 7.4 -M *
Cold Springs 9630 4.4 3.3 133 6.8 5.1 133
Deer Park 9700 10.6 6.7 158 13.9 9.6 145
Hobbs Park 10100 8.6 6.9 125 9.0 6.4 141
Kirwin 9550 6.9 4.5 153 9.6 5.9 163
Little Warm 9370 4.7 4.8 98 9.5 6.4 148
Owl Creek 8975 2.8 2.7 104 4.1 3.0 137
South Pass 9040 9.7 6.9 141 9.8 8.7 113
St. Lawrence Alt 8620 2.1 3.2 66 6.1 4.4 139
Togwotee Pass 9580 14.4 11.6 124 18.0 12.1 149
Townsend Creek 8700 4.2 4.2 100 6.9 6.0 115
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Basin Index (%) 125 139
BIGHORN BASIN
Bald Mtn. 9380 10.5 9.0 117 8.8 8.3 106
Bear Trap Meadow 8200 -M 2.6 * 3.9 4.3 91
Bone Springs Div 9350 7.8 7.6 103 7.9 7.5 105
Grave Springs 8550 3.0 3.7 81 4.3 5.3 81
Kirwin 9550 6.9 4.5 153 9.6 5.9 163
Marquette 8760 4.0 -M * 7.0 -M *
Middle Powder 7760 3.6 5.2 69 3.7 6.2 60
Owl Creek 8975 2.8 2.7 104 4.1 3.0 137
Powder River Pass 9480 2.8 5.1 55 5.1 6.2 82
Shell Creek 9580 8.4 7.4 114 6.8 6.8 100
Timber Creek 7950 2.9 2.2 132 4.4 4.0 110
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Basin Index (%) 103 102
SHOSHONE RIVER
Blackwater 9780 15.4 11.0 140 17.9 10.4 172
Evening Star 9200 14.4 12.3 117 20.3 13.9 146
Marquette 8760 4.0 -M * 7.0 -M *
Sylvan Road 7120 7.0 5.9 119 17.1 9.5 180
Younts Peak 8350 8.1 7.2 112 12.4 8.2 151
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Basin Index (%) 123 161
POWDER RIVER
Bear Trap Meadow 8200 -M 2.6 * 3.9 4.3 91
Cloud Peak Reservoir 9860 5.5 6.5 85 7.1 6.5 109
Grave Springs 8550 3.0 3.7 81 4.3 5.3 81
Hansen Sawmill 8360 3.5 3.2 109 5.3 4.2 126
Middle Powder 7760 3.6 5.2 69 3.7 6.2 60
Powder River Pass 9480 2.8 5.1 55 5.1 6.2 82
Soldier Park 8720 5.4 -M * 5.7 -M *
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Basin Index (%) 78 90
TONGUE RIVER
Big Goose 7990 4.1 3.8 108 5.4 5.5 98
Bone Springs Div 9350 7.8 7.6 103 7.9 7.5 105
Burgess Junction 7880 4.3 4.9 88 5.5 6.1 90
Dome Lake 8880 5.0 5.6 89 6.8 7.0 97
Little Goose 8870 4.6 -M * 6.5 -M *
Sucker Creek 8880 5.0 5.5 91 5.3 7.0 76
Tie Creek 6870 3.1 2.2 141 5.9 5.8 102
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Basin Index (%) 99 95
BELLE FOURCHE
Cole Canyon 5910 2.8 2.3 122 3.8 4.7 81
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Basin Index (%) 122 81
CHEYENNE RIVER BASIN
Blind Park 6890 3.1 3.5 89 4.8 6.2 77
North Rapid Creek 6130 3.3 3.3 100 3.5 5.2 67
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Basin Index (%) 94 73
UPPER N. PLATTE
Arapaho Ridge 10960 13.6 10.0 136 14.8 11.4 130
Blackhall Mtn 9820 15.7 -M * -M -M *
Columbine 9160 12.9 9.4 137 15.1 12.2 124
Divide Peak 8880 8.6 9.1 95 11.0 10.8 102
Joe Wright 10120 8.9 9.8 91 14.7 12.6 117
Laprele Creek 8375 4.7 4.1 115 4.8 6.1 79
Med Bow 10500 19.4 -M * 19.4 -M *
North French Creek 10130 12.5 12.3 102 14.3 12.7 113
Never Summer 10280 -M 9.3 * -M -M *
Old Battle 10000 15.3 13.5 113 16.9 17.2 98
Rawah 9020 6.7 4.9 137 9.2 7.7 119
Sage Creek Basin 7850 6.8 6.3 108 7.5 7.9 95
Sand Lake 10050 13.7 12.6 109 13.3 11.7 114
South Brush Creek 8440 5.5 5.2 106 6.7 7.5 89
Tower 10500 18.4 19.1 96 21.7 19.3 112
Webber Springs 9250 12.0 10.3 117 13.2 13.1 101
Willow Creek Pass 9540 8.5 5.7 149 9.6 6.7 143
Zirkel 9340 -M 11.0 * -M 14.4 *
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Basin Index (%) 112 110
SWEETWATER
Deer Park 9700 10.6 6.7 158 13.9 9.6 145
Larsen Creek 9000 8.1 5.2 156 12.0 -M *
South Pass 9040 9.7 6.9 141 9.8 8.7 113
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Basin Index (%) 151 130
LOWER N. PLATTE
Casper Mtn. 7900 4.9 6.2 79 5.4 7.6 71
Laprele Creek 8375 4.7 4.1 115 4.8 6.1 79
Reno Hill 8400 -M 6.0 * -M 7.3 *
Windy Peak 7900 3.7 3.1 119 4.6 5.3 87
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Basin Index (%) 99 78
LARAMIE RIVER
Brooklyn Lake 10240 10.9 8.5 128 9.8 9.7 101
Cinnabar Park 9574 9.5 9.7 98 12.2 12.2 100
Crow Creek 8330 3.4 4.7 72 5.3 5.7 93
Deadman Hill 10220 9.9 7.4 134 10.1 8.1 125
Rawah 9020 6.7 4.9 137 9.2 7.7 119
Roach 9700 7.5 7.2 104 9.1 9.3 98
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Basin Index (%) 113 106
S. PLATTE
Black Mountain 8920 5.2 -M * 6.6 -M *
Crow Creek 8330 3.4 4.7 72 5.3 5.7 93
Deadman Hill 10220 9.9 7.4 134 10.1 8.1 125
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Basin Index (%) 110 112
LITTLE SNAKE RIVER
Battle Mountain 7440 6.5 4.6 141 8.4 7.4 114
Divide Peak 8880 8.6 9.1 95 11.0 10.8 102
Elk River 8700 10.8 7.5 144 11.6 9.6 121
Little Snake River 8915 14.6 9.7 151 19.9 15.5 128
Old Battle 10000 15.3 13.5 113 16.9 17.2 98
Sage Creek Basin 7850 6.8 6.3 108 7.5 7.9 95
Sandstone RS 8150 7.3 4.9 149 7.2 9.1 79
Whiskey Park 8950 13.2 10.0 132 16.3 12.8 127
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Basin Index (%) 127 109
UPPER GREEN RIVER
Big Sandy Opening 9080 9.4 6.4 147 12.1 6.6 183
Blind Bull Sum 8650 14.4 9.6 150 15.0 9.9 152
East Rim Divide 7930 7.5 4.6 163 10.1 5.8 174
Elkhart Park G.S. 9400 6.2 5.8 107 11.8 6.7 176
Gros Ventre Summit 8750 6.8 6.4 106 10.9 6.4 170
Gunsight Pass 9820 7.4 6.5 114 11.7 6.8 172
Kendall R.S. 7740 8.1 5.1 159 12.5 6.9 181
Loomis Park 8240 10.2 6.8 150 15.5 8.6 180
New Fork Lake 8340 6.8 4.8 142 7.3 5.4 135
Pocket Creek 9360 -M -M * -M -M *
Snider Basin 8060 7.3 5.6 130 12.4 7.0 177
Spring Creek Divide 9000 13.5 10.7 126 18.8 11.6 162
Triple Peak 8500 15.2 8.8 173 20.1 11.8 170
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Basin Index (%) 139 169
LOWER GREEN RIVER
Blacks Fork Jct 8870 5.9 -M * 7.7 -M *
Buck Pasture 9700 8.6 -M * 11.6 -M *
EF Blacks Fork GS 9360 8.3 -M * 6.8 -M *
Hams Fork 7840 6.5 4.9 133 10.1 5.5 184
Hewinta 9519 5.9 4.0 148 8.2 6.7 122
Hickerson Park 9145 5.0 3.0 167 5.4 5.1 106
Hole-in-Rock 9150 3.8 3.1 123 5.6 4.8 117
Indian Creek 9425 13.1 10.3 127 16.2 10.5 154
Kelley R.S. 8180 9.3 6.5 143 15.0 8.9 169
Spirit Lk 10235 7.4 -M * 9.2 -M *
Steel Creek Park 10200 8.4 6.4 131 10.1 7.8 129
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Basin Index (%) 136 143
UPPER BEAR RIVER
Bear River RS 8777 6.0 -M * 8.1 -M *
Bug Lake 7950 10.9 6.7 163 12.5 9.5 132
Burts Miller Ranch 8000 3.3 -M * 4.1 -M *
Chalk Creek #1 8993 13.0 10.2 127 15.3 12.2 125
Hayden Fork 9212 10.0 6.3 159 14.3 10.1 142
Kelley R.S. 8180 9.3 6.5 143 15.0 8.9 169
Lily Lake 9156 7.1 5.4 131 9.3 8.4 111
Monte Cristo 8960 12.7 10.8 118 14.1 12.5 113
Salt River Summit 7760 6.3 5.2 121 12.1 8.0 151
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Basin Index (%) 136 133
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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.