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: FEBRUARY 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 16.2 10.9 149 24.1 14.3 169
Black Bear 8170 23.1 23.5 98 32.2 25.3 127
Blind Bull Sum 8650 23.7 14.1 168 -M 13.1 *
Cottonwood Creek 7670 16.8 13.3 126 23.0 16.1 143
East Rim Divide 7930 11.5 6.9 167 13.7 7.8 176
Grand Targhee 9260 29.5 23.8 124 27.0 20.9 129
Granite Creek 6770 16.8 10.8 156 21.4 13.9 154
Grassy Lake 7265 24.9 20.7 120 36.0 24.4 148
Gros Ventre Summit 8750 10.1 8.5 119 14.4 8.4 171
Gunsight Pass 9820 11.0 8.4 131 15.0 9.0 167
Lewis Lake Divide 7850 21.1 20.2 104 33.0 23.6 140
Phillips Bench 8200 19.7 16.0 123 29.3 18.6 158
Salt River Summit 7760 12.6 8.0 158 18.1 10.8 168
Snake River Station 6920 15.1 11.1 136 23.3 15.8 147
Spring Creek Divide 9000 21.0 14.7 143 23.7 15.7 151
Thumb Divide 7980 11.1 9.6 116 16.4 12.4 132
Togwotee Pass 9580 19.2 15.2 126 23.0 16.1 143
Two Ocean Plateau 9240 25.1 18.0 139 25.0 17.6 142
Willow Creek 8380 20.5 17.5 117 31.6 22.0 144
Younts Peak 8350 13.7 9.8 140 17.7 10.7 165
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Basin Index (%) 129 148
MADISON-GALLATIN
Black Bear 8170 23.1 23.5 98 32.2 25.3 127
Canyon 7870 10.6 8.3 128 16.7 10.9 153
Madison Plateau 7750 14.0 14.1 99 22.9 17.6 130
West Yellowstone 6700 7.7 7.1 108 15.4 9.8 157
Whiskey Creek 6800 8.7 9.7 90 16.5 13.5 122
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Basin Index (%) 102 135
YELLOWSTONE
Beartooth Lake 9360 17.1 14.1 121 13.2 13.1 101
Burnt Mtn 5880 5.2 2.5 208 9.5 8.0 119
Canyon 7870 10.6 8.3 128 16.7 10.9 153
Cole Creek 7850 6.6 8.5 78 5.3 7.8 68
Evening Star 9200 20.5 16.6 123 26.7 18.3 146
Fisher Creek 9100 19.4 20.9 93 24.6 21.2 116
Northeast Entrance 7350 7.4 6.5 114 12.4 8.4 148
Parker Peak 9400 17.6 13.3 132 19.5 11.5 170
Sylvan Lake 8420 14.1 13.2 107 24.5 15.1 162
Thumb Divide 7980 11.1 9.6 116 16.4 12.4 132
Two Ocean Plateau 9240 25.1 18.0 139 25.0 17.6 142
White Mill 8700 16.3 14.9 109 19.0 15.7 121
Wolverine 7650 -M 7.2 * -M 8.3 *
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Basin Index (%) 117 133
WIND RIVER
Burroughs Creek 8750 13.2 -M * 15.6 -M *
Castle Creek 8400 7.6 -M * 9.6 -M *
Cold Springs 9630 6.7 4.7 143 8.9 6.3 141
Deer Park 9700 17.9 9.4 190 21.5 12.5 172
Hobbs Park 10100 12.5 8.0 156 12.5 7.9 158
Kirwin 9550 10.3 5.9 175 13.3 7.3 182
Little Warm 9370 7.8 6.5 120 12.8 8.3 154
Owl Creek 8975 4.3 3.1 139 5.8 3.6 161
South Pass 9040 17.1 9.3 184 16.4 11.2 146
St. Lawrence Alt 8620 3.3 4.2 79 7.6 5.4 141
Togwotee Pass 9580 19.2 15.2 126 23.0 16.1 143
Townsend Creek 8700 7.0 5.3 132 9.9 7.2 138
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Basin Index (%) 148 153
BIGHORN BASIN
Bald Mtn. 9380 13.0 10.9 119 11.2 10.9 103
Bear Trap Meadow 8200 3.1 3.5 89 4.6 5.2 88
Bone Springs Div 9350 10.3 9.9 104 10.2 9.7 105
Grave Springs 8550 3.7 4.9 76 4.7 6.6 71
Kirwin 9550 10.3 5.9 175 13.3 7.3 182
Marquette 8760 5.3 -M * 8.8 -M *
Middle Powder 7760 4.5 6.4 70 4.8 7.5 64
Owl Creek 8975 4.3 3.1 139 5.8 3.6 161
Powder River Pass 9480 4.1 6.6 62 6.6 8.0 82
Shell Creek 9580 10.5 9.2 114 8.1 9.1 89
Timber Creek 7950 3.7 3.0 123 5.1 4.5 113
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Basin Index (%) 106 103
SHOSHONE RIVER
Blackwater 9780 21.1 14.9 142 23.2 13.5 172
Evening Star 9200 20.5 16.6 123 26.7 18.3 146
Marquette 8760 5.3 -M * 8.8 -M *
Sylvan Road 7120 10.4 7.9 132 20.6 12.1 170
Younts Peak 8350 13.7 9.8 140 17.7 10.7 165
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Basin Index (%) 134 162
POWDER RIVER
Bear Trap Meadow 8200 3.1 3.5 89 4.6 5.2 88
Cloud Peak Reservoir 9860 7.6 8.5 89 9.1 8.0 114
Grave Springs 8550 3.7 4.9 76 4.7 6.6 71
Hansen Sawmill 8360 5.1 4.0 128 7.0 5.1 137
Middle Powder 7760 4.5 6.4 70 4.8 7.5 64
Powder River Pass 9480 4.1 6.6 62 6.6 8.0 82
Soldier Park 8720 7.4 -M * 6.9 -M *
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Basin Index (%) 83 91
TONGUE RIVER
Big Goose 7990 5.5 4.9 112 6.6 6.6 100
Bone Springs Div 9350 10.3 9.9 104 10.2 9.7 105
Burgess Junction 7880 6.3 6.7 94 7.2 7.6 95
Dome Lake 8880 6.8 6.9 99 8.4 8.5 99
Little Goose 8870 6.1 -M * 8.1 -M *
Sucker Creek 8880 7.0 7.2 97 7.0 8.8 80
Tie Creek 6870 4.2 3.4 124 7.2 7.2 100
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Basin Index (%) 103 96
BELLE FOURCHE
Cole Canyon 5910 3.5 3.3 106 4.4 5.7 77
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Basin Index (%) 106 77
CHEYENNE RIVER BASIN
Blind Park 6890 4.5 4.8 94 5.6 7.9 71
North Rapid Creek 6130 4.4 4.3 102 4.7 6.3 75
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Basin Index (%) 98 73
UPPER N. PLATTE
Arapaho Ridge 10960 19.6 13.4 146 20.3 14.4 141
Blackhall Mtn 9820 25.9 -M * 26.9 -M *
Columbine 9160 19.7 14.9 132 21.9 16.6 132
Divide Peak 8880 13.7 12.5 110 16.2 13.9 117
Joe Wright 10120 15.0 13.1 115 20.4 16.3 125
Laprele Creek 8375 7.0 5.5 127 6.8 7.6 89
Med Bow 10500 27.1 -M * 25.1 -M *
North French Creek 10130 17.2 16.2 106 18.9 17.1 111
Never Summer 10280 16.5 12.8 129 14.1 -M *
Old Battle 10000 25.8 19.4 133 27.1 22.8 119
Rawah 9020 10.0 6.3 159 12.7 9.1 140
Sage Creek Basin 7850 11.3 8.6 131 11.8 10.0 118
Sand Lake 10050 20.0 16.7 120 19.1 15.4 124
South Brush Creek 8440 7.2 7.4 97 8.7 9.7 90
Tower 10500 31.9 28.0 114 32.5 25.8 126
Webber Springs 9250 20.4 14.1 145 24.1 17.3 139
Willow Creek Pass 9540 -M 7.8 * -M 8.4 *
Zirkel 9340 28.3 18.8 151 30.6 19.3 159
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Basin Index (%) 127 126
SWEETWATER
Deer Park 9700 17.9 9.4 190 21.5 12.5 172
Larsen Creek 9000 12.5 7.5 167 15.8 -M *
South Pass 9040 17.1 9.3 184 16.4 11.2 146
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Basin Index (%) 181 160
LOWER N. PLATTE
Casper Mtn. 7900 6.4 7.6 84 6.6 9.1 73
Laprele Creek 8375 7.0 5.5 127 6.8 7.6 89
Reno Hill 8400 7.3 7.8 94 7.4 9.0 82
Windy Peak 7900 5.7 4.2 136 6.4 6.4 100
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Basin Index (%) 105 85
LARAMIE RIVER
Brooklyn Lake 10240 16.9 12.0 141 15.5 13.1 118
Cinnabar Park 9574 13.6 13.4 101 16.5 16.3 101
Crow Creek 8330 4.0 5.7 70 6.1 6.4 95
Deadman Hill 10220 14.5 10.3 141 14.1 10.4 136
Rawah 9020 10.0 6.3 159 12.7 9.1 140
Roach 9700 12.5 10.1 124 15.0 12.0 125
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Basin Index (%) 124 119
S. PLATTE
Black Mountain 8920 7.2 -M * 8.5 -M *
Crow Creek 8330 4.0 5.7 70 6.1 6.4 95
Deadman Hill 10220 14.5 10.3 141 14.1 10.4 136
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Basin Index (%) 116 120
LITTLE SNAKE RIVER
Battle Mountain 7440 8.8 7.2 122 11.8 9.8 120
Divide Peak 8880 13.7 12.5 110 16.2 13.9 117
Elk River 8700 15.8 11.6 136 15.8 13.0 122
Little Snake River 8915 23.5 15.9 148 28.5 21.1 135
Old Battle 10000 25.8 19.4 133 27.1 22.8 119
Sage Creek Basin 7850 11.3 8.6 131 11.8 10.0 118
Sandstone RS 8150 10.8 8.2 132 11.9 12.2 98
Whiskey Park 8950 20.5 16.4 125 23.0 18.2 126
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Basin Index (%) 130 121
UPPER GREEN RIVER
Big Sandy Opening 9080 13.5 8.4 161 15.9 8.5 187
Blind Bull Sum 8650 23.7 14.1 168 -M 13.1 *
East Rim Divide 7930 11.5 6.9 167 13.7 7.8 176
Elkhart Park G.S. 9400 10.7 7.6 141 16.0 8.6 186
Gros Ventre Summit 8750 10.1 8.5 119 14.4 8.4 171
Gunsight Pass 9820 11.0 8.4 131 15.0 9.0 167
Kendall R.S. 7740 13.9 7.8 178 18.2 9.4 194
Loomis Park 8240 16.0 9.7 165 20.8 11.5 181
New Fork Lake 8340 10.6 6.8 156 10.9 7.2 151
Pocket Creek 9360 -M -M * -M -M *
Snider Basin 8060 12.5 7.7 162 17.2 9.4 183
Spring Creek Divide 9000 21.0 14.7 143 23.7 15.7 151
Triple Peak 8500 22.8 13.5 169 -M 16.4 *
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Basin Index (%) 155 174
LOWER GREEN RIVER
Blacks Fork Jct 8870 8.4 -M * 10.5 -M *
Buck Pasture 9700 13.9 -M * 16.4 -M *
EF Blacks Fork GS 9360 9.2 -M * 9.8 -M *
Hams Fork 7840 11.4 7.3 156 13.4 7.4 181
Hewinta 9519 8.9 5.9 151 11.1 8.8 126
Hickerson Park 9145 6.1 3.9 156 6.4 6.2 103
Hole-in-Rock 9150 5.1 4.1 124 6.9 5.8 119
Indian Creek 9425 21.7 14.7 148 -M 14.3 *
Kelley R.S. 8180 15.5 9.2 168 20.6 11.8 175
Spirit Lk 10235 9.9 -M * 11.5 -M *
Steel Creek Park 10200 11.9 8.8 135 13.5 10.1 134
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Basin Index (%) 150 144
UPPER BEAR RIVER
Bear River RS 8777 9.8 -M * 11.8 -M *
Bug Lake 7950 21.7 11.2 194 21.2 12.6 168
Burts Miller Ranch 8000 5.6 -M * 6.4 -M *
Chalk Creek #1 8993 21.9 13.4 163 23.4 16.0 146
Hayden Fork 9212 15.7 8.8 178 20.4 13.4 152
Kelley R.S. 8180 15.5 9.2 168 20.6 11.8 175
Lily Lake 9156 10.8 7.5 144 13.1 10.9 120
Monte Cristo 8960 22.2 16.1 138 23.6 16.6 142
Salt River Summit 7760 12.6 8.0 158 18.1 10.8 168
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Basin Index (%) 162 152
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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.