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 WEDNESDAY: JANUARY 4 , 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 10.7 7.5 143 18.5 10.4 178
Black Bear 8170 16.1 18.5 87 25.4 18.8 135
Blind Bull Sum 8650 14.0 9.5 147 15.0 9.8 153
Cottonwood Creek 7670 10.1 8.8 115 17.0 11.7 145
East Rim Divide 7930 7.2 4.6 157 9.8 5.7 172
Grand Targhee 9260 24.1 18.0 134 22.5 15.4 146
Granite Creek 6770 10.0 6.8 147 16.3 9.9 165
Grassy Lake 7265 15.8 13.5 117 27.4 17.9 153
Gros Ventre Summit 8750 6.6 6.4 103 10.7 6.4 167
Gunsight Pass 9820 7.3 6.4 114 11.6 6.7 173
Lewis Lake Divide 7850 12.8 13.8 93 24.4 17.7 138
Phillips Bench 8200 11.7 11.5 102 21.1 13.6 155
Salt River Summit 7760 5.7 5.1 112 11.6 7.9 147
Snake River Station 6920 10.2 6.9 148 19.0 11.6 164
Spring Creek Divide 9000 12.9 10.6 122 18.2 11.4 160
Thumb Divide 7980 6.6 6.5 102 12.5 9.3 134
Togwotee Pass 9580 14.2 11.4 125 17.9 12.0 149
Two Ocean Plateau 9240 18.2 13.0 140 19.3 13.3 145
Willow Creek 8380 11.9 11.5 103 22.9 16.3 140
Younts Peak 8350 8.2 7.1 115 12.9 8.2 157
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Basin Index (%) 119 151
MADISON-GALLATIN
Black Bear 8170 16.1 18.5 87 25.4 18.8 135
Canyon 7870 6.9 5.8 119 13.1 8.2 160
Madison Plateau 7750 9.4 10.5 90 19.2 13.1 147
West Yellowstone 6700 5.5 4.9 112 13.1 7.4 177
Whiskey Creek 6800 5.9 7.1 83 13.7 10.3 133
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Basin Index (%) 94 146
YELLOWSTONE
Beartooth Lake 9360 12.0 10.3 117 -M 9.5 *
Burnt Mtn 5880 3.7 1.9 195 7.7 6.9 112
Canyon 7870 6.9 5.8 119 13.1 8.2 160
Cole Creek 7850 5.1 6.4 80 4.7 6.5 72
Evening Star 9200 14.4 12.1 119 20.4 13.7 149
Fisher Creek 9100 13.8 15.7 88 19.1 15.7 122
Northeast Entrance 7350 4.8 4.4 109 9.9 6.4 155
Parker Peak 9400 12.4 10.3 120 15.6 8.9 175
Sylvan Lake 8420 10.0 9.6 104 20.2 11.6 174
Thumb Divide 7980 6.6 6.5 102 12.5 9.3 134
Two Ocean Plateau 9240 18.2 13.0 140 19.3 13.3 145
White Mill 8700 11.5 10.4 111 14.6 11.8 124
Wolverine 7650 6.8 5.1 133 10.3 6.4 161
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Basin Index (%) 113 141
WIND RIVER
Burroughs Creek 8750 8.5 -M * 11.0 -M *
Castle Creek 8400 5.1 -M * 7.2 -M *
Cold Springs 9630 4.3 3.3 130 6.6 5.1 129
Deer Park 9700 10.2 6.6 155 13.8 9.5 145
Hobbs Park 10100 8.4 6.8 124 8.9 6.4 139
Kirwin 9550 6.9 4.5 153 9.9 5.8 171
Little Warm 9370 4.5 4.7 96 9.3 6.4 145
Owl Creek 8975 2.7 2.7 100 4.1 2.9 141
South Pass 9040 9.5 6.8 140 9.7 8.6 113
St. Lawrence Alt 8620 1.9 3.2 59 5.9 4.4 134
Togwotee Pass 9580 14.2 11.4 125 17.9 12.0 149
Townsend Creek 8700 4.1 4.2 98 6.8 5.9 115
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Basin Index (%) 123 139
BIGHORN BASIN
Bald Mtn. 9380 10.5 8.9 118 9.0 8.2 110
Bear Trap Meadow 8200 2.3 2.6 88 4.0 4.3 93
Bone Springs Div 9350 7.7 7.5 103 8.1 7.4 109
Grave Springs 8550 2.9 3.6 81 4.2 5.3 79
Kirwin 9550 6.9 4.5 153 9.9 5.8 171
Marquette 8760 3.6 -M * 6.9 -M *
Middle Powder 7760 3.7 5.1 73 3.9 6.2 63
Owl Creek 8975 2.7 2.7 100 4.1 2.9 141
Powder River Pass 9480 2.7 5.0 54 5.3 6.1 87
Shell Creek 9580 8.4 7.3 115 6.9 6.7 103
Timber Creek 7950 2.9 2.2 132 4.2 3.9 108
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Basin Index (%) 103 105
SHOSHONE RIVER
Blackwater 9780 15.4 10.9 141 18.7 10.3 182
Evening Star 9200 14.4 12.1 119 20.4 13.7 149
Marquette 8760 3.6 -M * 6.9 -M *
Sylvan Road 7120 7.1 5.8 122 17.0 9.4 181
Younts Peak 8350 8.2 7.1 115 12.9 8.2 157
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Basin Index (%) 126 166
POWDER RIVER
Bear Trap Meadow 8200 2.3 2.6 88 4.0 4.3 93
Cloud Peak Reservoir 9860 5.5 6.4 86 7.4 6.4 116
Grave Springs 8550 2.9 3.6 81 4.2 5.3 79
Hansen Sawmill 8360 3.6 3.1 116 5.4 4.2 129
Middle Powder 7760 3.7 5.1 73 3.9 6.2 63
Powder River Pass 9480 2.7 5.0 54 5.3 6.1 87
Soldier Park 8720 6.0 -M * 5.8 -M *
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Basin Index (%) 80 93
TONGUE RIVER
Big Goose 7990 4.2 3.8 111 5.5 5.4 102
Bone Springs Div 9350 7.7 7.5 103 8.1 7.4 109
Burgess Junction 7880 4.3 4.9 88 5.6 6.0 93
Dome Lake 8880 5.1 5.6 91 6.8 6.9 99
Little Goose 8870 4.7 -M * 6.7 -M *
Sucker Creek 8880 5.1 5.4 94 5.6 6.9 81
Tie Creek 6870 3.1 2.2 141 5.8 5.8 100
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Basin Index (%) 100 97
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 3.4 91 4.8 6.2 77
North Rapid Creek 6130 3.3 3.2 103 3.5 5.1 69
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Basin Index (%) 97 73
UPPER N. PLATTE
Arapaho Ridge 10960 12.0 9.9 121 13.5 11.2 121
Blackhall Mtn 9820 14.0 -M * 16.1 -M *
Columbine 9160 11.1 9.2 121 13.4 12.0 112
Divide Peak 8880 7.4 9.0 82 9.9 10.6 93
Joe Wright 10120 8.1 9.7 84 13.6 12.5 109
Laprele Creek 8375 4.8 4.1 117 4.7 6.1 77
Med Bow 10500 17.6 -M * 17.7 -M *
North French Creek 10130 11.0 12.2 90 12.9 12.5 103
Never Summer 10280 -M 9.2 * -M -M *
Old Battle 10000 13.2 13.3 99 15.0 17.0 88
Rawah 9020 5.7 4.8 119 8.4 7.6 111
Sage Creek Basin 7850 5.6 6.2 90 7.0 7.8 90
Sand Lake 10050 12.4 12.4 100 12.1 11.6 104
South Brush Creek 8440 4.8 5.1 94 6.2 7.4 84
Tower 10500 15.2 19.0 80 18.9 19.0 99
Webber Springs 9250 10.4 10.1 103 13.9 13.0 107
Willow Creek Pass 9540 7.9 5.6 141 9.1 6.7 136
Zirkel 9340 14.2 10.7 133 17.9 14.2 126
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Basin Index (%) 102 104
SWEETWATER
Deer Park 9700 10.2 6.6 155 13.8 9.5 145
Larsen Creek 9000 7.7 5.1 151 11.6 -M *
South Pass 9040 9.5 6.8 140 9.7 8.6 113
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Basin Index (%) 148 130
LOWER N. PLATTE
Casper Mtn. 7900 5.0 6.1 82 5.5 7.5 73
Laprele Creek 8375 4.8 4.1 117 4.7 6.1 77
Reno Hill 8400 -M 6.0 * -M 7.3 *
Windy Peak 7900 3.6 3.1 116 4.5 5.3 85
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Basin Index (%) 101 78
LARAMIE RIVER
Brooklyn Lake 10240 9.5 8.3 114 9.4 9.5 99
Cinnabar Park 9574 8.3 9.5 87 11.1 12.0 92
Crow Creek 8330 2.6 4.7 55 4.6 5.6 82
Deadman Hill 10220 8.8 7.3 121 8.9 8.0 111
Rawah 9020 5.7 4.8 119 8.4 7.6 111
Roach 9700 6.5 7.1 92 8.1 9.2 88
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Basin Index (%) 99 97
S. PLATTE
Black Mountain 8920 4.7 -M * 6.0 -M *
Crow Creek 8330 2.6 4.7 55 4.6 5.6 82
Deadman Hill 10220 8.8 7.3 121 8.9 8.0 111
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Basin Index (%) 95 99
LITTLE SNAKE RIVER
Battle Mountain 7440 5.2 4.5 116 7.4 7.2 103
Divide Peak 8880 7.4 9.0 82 9.9 10.6 93
Elk River 8700 9.8 7.4 132 10.9 9.4 116
Little Snake River 8915 12.8 9.5 135 18.1 15.4 118
Old Battle 10000 13.2 13.3 99 15.0 17.0 88
Sage Creek Basin 7850 5.6 6.2 90 7.0 7.8 90
Sandstone RS 8150 6.1 4.8 127 6.5 8.9 73
Whiskey Park 8950 11.2 9.8 114 14.4 12.6 114
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Basin Index (%) 111 100
UPPER GREEN RIVER
Big Sandy Opening 9080 9.0 6.3 143 11.7 6.6 177
Blind Bull Sum 8650 14.0 9.5 147 15.0 9.8 153
East Rim Divide 7930 7.2 4.6 157 9.8 5.7 172
Elkhart Park G.S. 9400 5.9 5.8 102 11.4 6.7 170
Gros Ventre Summit 8750 6.6 6.4 103 10.7 6.4 167
Gunsight Pass 9820 7.3 6.4 114 11.6 6.7 173
Kendall R.S. 7740 7.9 5.1 155 12.2 6.8 179
Loomis Park 8240 9.9 6.8 146 15.0 8.5 176
New Fork Lake 8340 6.6 4.7 140 7.2 5.4 133
Pocket Creek 9360 -M -M * -M -M *
Snider Basin 8060 6.6 5.5 120 11.8 6.9 171
Spring Creek Divide 9000 12.9 10.6 122 18.2 11.4 160
Triple Peak 8500 14.5 8.7 167 19.4 11.6 167
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Basin Index (%) 135 166
LOWER GREEN RIVER
Blacks Fork Jct 8870 5.2 -M * 7.1 -M *
Buck Pasture 9700 7.5 -M * 10.5 -M *
EF Blacks Fork GS 9360 7.6 -M * 6.4 -M *
Hams Fork 7840 5.6 4.8 117 9.2 5.4 170
Hewinta 9519 5.3 4.0 132 7.6 6.6 115
Hickerson Park 9145 4.6 3.0 153 5.0 5.1 98
Hole-in-Rock 9150 3.3 3.0 110 5.3 4.8 110
Indian Creek 9425 12.2 10.2 120 16.2 10.4 156
Kelley R.S. 8180 8.5 6.4 133 14.2 8.8 161
Spirit Lk 10235 7.1 -M * 9.0 -M *
Steel Creek Park 10200 7.5 6.3 119 9.4 7.7 122
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Basin Index (%) 125 137
UPPER BEAR RIVER
Bear River RS 8777 5.2 -M * 7.4 -M *
Bug Lake 7950 9.0 6.6 136 12.3 9.4 131
Burts Miller Ranch 8000 2.6 -M * 3.8 -M *
Chalk Creek #1 8993 11.6 10.0 116 14.0 12.0 117
Hayden Fork 9212 8.7 6.2 140 12.3 10.0 123
Kelley R.S. 8180 8.5 6.4 133 14.2 8.8 161
Lily Lake 9156 5.9 5.3 111 8.4 8.3 101
Monte Cristo 8960 11.0 10.5 105 14.1 12.3 115
Salt River Summit 7760 5.7 5.1 112 11.6 7.9 147
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Basin Index (%) 121 126
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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.