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 MONDAY: FEBRUARY 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 18.1 11.0 165 25.9 14.4 180
Black Bear 8170 25.3 24.0 105 34.2 25.6 134
Blind Bull Sum 8650 25.4 14.6 174 -M 13.3 *
Cottonwood Creek 7670 17.5 13.6 129 23.9 16.4 146
East Rim Divide 7930 12.3 6.9 178 14.5 7.9 184
Grand Targhee 9260 29.6 24.3 122 27.8 21.5 129
Granite Creek 6770 18.5 11.1 167 23.3 14.0 166
Grassy Lake 7265 26.4 21.2 125 37.7 24.7 153
Gros Ventre Summit 8750 11.1 8.6 129 15.4 8.5 181
Gunsight Pass 9820 12.0 8.6 140 15.8 9.2 172
Lewis Lake Divide 7850 23.9 20.6 116 34.5 23.8 145
Phillips Bench 8200 21.4 16.2 132 30.6 18.7 164
Salt River Summit 7760 13.6 8.2 166 19.1 11.0 174
Snake River Station 6920 16.0 11.5 139 25.5 15.9 160
Spring Creek Divide 9000 22.6 15.2 149 25.2 15.9 158
Thumb Divide 7980 13.0 9.7 134 17.8 12.5 142
Togwotee Pass 9580 20.6 15.4 134 24.5 16.3 150
Two Ocean Plateau 9240 27.3 18.4 148 26.6 17.8 149
Willow Creek 8380 21.0 18.0 117 32.2 22.3 144
Younts Peak 8350 15.6 10.0 156 19.3 10.8 179
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Basin Index (%) 136 154
MADISON-GALLATIN
Black Bear 8170 25.3 24.0 105 34.2 25.6 134
Canyon 7870 11.5 8.5 135 17.7 11.1 159
Madison Plateau 7750 16.0 14.4 111 24.7 17.8 139
West Yellowstone 6700 9.0 7.1 127 16.4 10.0 164
Whiskey Creek 6800 10.4 9.8 106 18.0 13.6 132
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Basin Index (%) 113 142
YELLOWSTONE
Beartooth Lake 9360 19.0 14.4 132 15.2 13.3 114
Burnt Mtn 5880 5.4 2.6 208 9.6 8.2 117
Canyon 7870 11.5 8.5 135 17.7 11.1 159
Cole Creek 7850 7.0 8.7 80 5.7 7.9 72
Evening Star 9200 22.9 16.7 137 -M 18.5 *
Fisher Creek 9100 22.7 21.4 106 27.5 21.4 129
Northeast Entrance 7350 7.9 6.6 120 13.2 8.6 153
Parker Peak 9400 19.8 13.4 148 21.9 11.7 187
Sylvan Lake 8420 15.2 13.4 113 26.0 15.3 170
Thumb Divide 7980 13.0 9.7 134 17.8 12.5 142
Two Ocean Plateau 9240 27.3 18.4 148 26.6 17.8 149
White Mill 8700 18.7 15.1 124 21.6 15.9 136
Wolverine 7650 -M 7.2 * -M 8.4 *
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Basin Index (%) 128 141
WIND RIVER
Burroughs Creek 8750 13.9 -M * 16.5 -M *
Castle Creek 8400 7.8 -M * 9.9 -M *
Cold Springs 9630 7.2 4.8 150 9.3 6.4 145
Deer Park 9700 18.8 9.5 198 22.5 12.7 177
Hobbs Park 10100 13.2 8.0 165 12.8 8.0 160
Kirwin 9550 11.4 6.0 190 14.4 7.4 195
Little Warm 9370 8.5 6.6 129 13.5 8.4 161
Owl Creek 8975 4.6 3.1 148 6.0 3.7 162
South Pass 9040 18.0 9.7 186 16.9 11.3 150
St. Lawrence Alt 8620 3.9 4.2 93 7.9 5.5 144
Togwotee Pass 9580 20.6 15.4 134 24.5 16.3 150
Townsend Creek 8700 7.3 5.5 133 10.2 7.3 140
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Basin Index (%) 156 159
BIGHORN BASIN
Bald Mtn. 9380 13.2 11.1 119 11.7 11.1 105
Bear Trap Meadow 8200 3.5 3.6 97 5.0 5.3 94
Bone Springs Div 9350 10.6 9.9 107 10.9 9.9 110
Grave Springs 8550 3.9 5.0 78 4.9 6.7 73
Kirwin 9550 11.4 6.0 190 14.4 7.4 195
Marquette 8760 5.5 -M * 9.4 -M *
Middle Powder 7760 4.8 6.6 73 5.4 7.6 71
Owl Creek 8975 4.6 3.1 148 6.0 3.7 162
Powder River Pass 9480 4.1 6.8 60 7.1 8.1 88
Shell Creek 9580 10.8 9.3 116 8.6 9.2 93
Timber Creek 7950 4.0 3.1 129 5.3 4.6 115
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Basin Index (%) 110 108
SHOSHONE RIVER
Blackwater 9780 23.0 15.0 153 -M 13.6 *
Evening Star 9200 22.9 16.7 137 -M 18.5 *
Marquette 8760 5.5 -M * 9.4 -M *
Sylvan Road 7120 11.6 7.9 147 21.7 12.2 178
Younts Peak 8350 15.6 10.0 156 19.3 10.8 179
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Basin Index (%) 147 178*
POWDER RIVER
Bear Trap Meadow 8200 3.5 3.6 97 5.0 5.3 94
Cloud Peak Reservoir 9860 7.9 8.6 92 9.6 8.2 117
Grave Springs 8550 3.9 5.0 78 4.9 6.7 73
Hansen Sawmill 8360 5.4 4.0 135 7.3 5.2 140
Middle Powder 7760 4.8 6.6 73 5.4 7.6 71
Powder River Pass 9480 4.1 6.8 60 7.1 8.1 88
Soldier Park 8720 8.5 -M * 7.4 -M *
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Basin Index (%) 86 96
TONGUE RIVER
Big Goose 7990 6.0 5.0 120 6.9 6.7 103
Bone Springs Div 9350 10.6 9.9 107 10.9 9.9 110
Burgess Junction 7880 6.4 6.9 93 7.7 7.7 100
Dome Lake 8880 7.2 7.1 101 8.7 8.6 101
Little Goose 8870 6.4 -M * 8.5 -M *
Sucker Creek 8880 7.3 7.4 99 7.6 9.0 84
Tie Creek 6870 4.5 3.5 129 7.7 7.3 105
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Basin Index (%) 106 101
BELLE FOURCHE
Cole Canyon 5910 3.6 3.5 103 4.8 5.9 81
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Basin Index (%) 103 81
CHEYENNE RIVER BASIN
Blind Park 6890 4.7 5.0 94 5.8 8.0 72
North Rapid Creek 6130 4.7 4.5 104 5.1 6.5 78
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Basin Index (%) 99 75
UPPER N. PLATTE
Arapaho Ridge 10960 20.0 13.7 146 20.6 14.7 140
Blackhall Mtn 9820 27.1 -M * 27.7 -M *
Columbine 9160 20.3 15.3 133 22.2 16.9 131
Divide Peak 8880 13.8 13.0 106 16.3 14.2 115
Joe Wright 10120 15.2 13.3 114 21.2 16.6 128
Laprele Creek 8375 7.4 5.6 132 7.1 7.8 91
Med Bow 10500 27.5 -M * 26.0 -M *
North French Creek 10130 17.7 16.6 107 19.2 17.4 110
Never Summer 10280 16.8 13.0 129 14.2 -M *
Old Battle 10000 26.6 19.9 134 28.1 23.2 121
Rawah 9020 10.2 6.6 155 13.0 9.4 138
Sage Creek Basin 7850 11.5 8.8 131 11.8 10.1 117
Sand Lake 10050 20.5 17.1 120 19.5 15.6 125
South Brush Creek 8440 7.6 7.6 100 9.0 9.8 92
Tower 10500 33.3 28.8 116 34.6 26.4 131
Webber Springs 9250 21.5 14.8 145 25.1 17.6 143
Willow Creek Pass 9540 -M 8.0 * -M 8.6 *
Zirkel 9340 30.4 19.2 158 32.3 19.7 164
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Basin Index (%) 128 128
SWEETWATER
Deer Park 9700 18.8 9.5 198 22.5 12.7 177
Larsen Creek 9000 13.3 7.7 173 16.5 -M *
South Pass 9040 18.0 9.7 186 16.9 11.3 150
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Basin Index (%) 186 164
LOWER N. PLATTE
Casper Mtn. 7900 6.9 7.9 87 7.0 9.4 74
Laprele Creek 8375 7.4 5.6 132 7.1 7.8 91
Reno Hill 8400 7.6 8.0 95 8.0 9.3 86
Windy Peak 7900 5.9 4.3 137 6.6 6.5 102
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Basin Index (%) 108 87
LARAMIE RIVER
Brooklyn Lake 10240 17.6 12.2 144 16.0 13.3 120
Cinnabar Park 9574 14.1 13.7 103 16.8 16.7 101
Crow Creek 8330 4.1 5.7 72 6.1 6.5 94
Deadman Hill 10220 15.0 10.5 143 14.7 10.6 139
Rawah 9020 10.2 6.6 155 13.0 9.4 138
Roach 9700 12.9 10.4 124 15.3 12.2 125
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Basin Index (%) 125 119
S. PLATTE
Black Mountain 8920 7.4 -M * 8.5 -M *
Crow Creek 8330 4.1 5.7 72 6.1 6.5 94
Deadman Hill 10220 15.0 10.5 143 14.7 10.6 139
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Basin Index (%) 118 122
LITTLE SNAKE RIVER
Battle Mountain 7440 8.8 7.3 121 11.9 10.0 119
Divide Peak 8880 13.8 13.0 106 16.3 14.2 115
Elk River 8700 16.1 12.0 134 15.9 13.2 120
Little Snake River 8915 24.1 16.3 148 29.3 21.5 136
Old Battle 10000 26.6 19.9 134 28.1 23.2 121
Sage Creek Basin 7850 11.5 8.8 131 11.8 10.1 117
Sandstone RS 8150 10.8 8.4 129 12.0 12.4 97
Whiskey Park 8950 21.1 16.9 125 23.2 18.5 125
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Basin Index (%) 129 121
UPPER GREEN RIVER
Big Sandy Opening 9080 14.2 8.5 167 16.4 8.6 191
Blind Bull Sum 8650 25.4 14.6 174 -M 13.3 *
East Rim Divide 7930 12.3 6.9 178 14.5 7.9 184
Elkhart Park G.S. 9400 11.3 7.8 145 16.6 8.8 189
Gros Ventre Summit 8750 11.1 8.6 129 15.4 8.5 181
Gunsight Pass 9820 12.0 8.6 140 15.8 9.2 172
Kendall R.S. 7740 15.1 7.9 191 19.0 9.5 200
Loomis Park 8240 17.2 9.9 174 21.9 11.6 189
New Fork Lake 8340 11.3 6.8 166 11.4 7.3 156
Pocket Creek 9360 -M -M * -M -M *
Snider Basin 8060 13.2 8.0 165 17.9 9.5 188
Spring Creek Divide 9000 22.6 15.2 149 25.2 15.9 158
Triple Peak 8500 23.9 13.6 176 24.2 16.6 146
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Basin Index (%) 163 175
LOWER GREEN RIVER
Blacks Fork Jct 8870 9.0 -M * 11.3 -M *
Buck Pasture 9700 14.1 -M * 16.6 -M *
EF Blacks Fork GS 9360 9.6 -M * 10.0 -M *
Hams Fork 7840 12.2 7.5 163 13.9 7.5 185
Hewinta 9519 8.8 6.1 144 11.0 9.0 122
Hickerson Park 9145 6.1 4.0 152 6.4 6.3 102
Hole-in-Rock 9150 5.1 4.1 124 6.9 5.9 117
Indian Creek 9425 23.0 15.0 153 -M 14.5 *
Kelley R.S. 8180 16.1 9.4 171 21.3 11.9 179
Spirit Lk 10235 9.9 -M * 11.5 -M *
Steel Creek Park 10200 12.0 9.1 132 13.7 10.3 133
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Basin Index (%) 151 144
UPPER BEAR RIVER
Bear River RS 8777 10.0 -M * 12.0 -M *
Bug Lake 7950 22.1 11.7 189 21.4 12.8 167
Burts Miller Ranch 8000 5.7 -M * 6.5 -M *
Chalk Creek #1 8993 22.4 13.6 165 23.7 16.2 146
Hayden Fork 9212 16.1 9.0 179 20.8 13.6 153
Kelley R.S. 8180 16.1 9.4 171 21.3 11.9 179
Lily Lake 9156 11.0 7.6 145 13.4 11.0 122
Monte Cristo 8960 22.5 16.3 138 23.8 16.8 142
Salt River Summit 7760 13.6 8.2 166 19.1 11.0 174
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Basin Index (%) 163 154
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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.