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: MARCH 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 25.0 13.7 182 31.9 17.8 179
Black Bear 8170 38.4 30.5 126 44.7 32.0 140
Blind Bull Sum 8650 37.6 18.7 201 -M 16.5 *
Cottonwood Creek 7670 25.5 17.9 142 32.4 20.2 160
East Rim Divide 7930 17.8 8.8 202 19.1 9.9 193
Grand Targhee 9260 37.4 31.0 121 32.8 25.3 130
Granite Creek 6770 28.4 14.2 200 -M 17.1 *
Grassy Lake 7265 33.2 26.9 123 46.0 30.4 151
Gros Ventre Summit 8750 -M 10.4 * -M 10.5 *
Gunsight Pass 9820 18.6 11.1 168 21.3 11.1 192
Lewis Lake Divide 7850 33.6 25.7 131 42.4 29.9 142
Phillips Bench 8200 31.7 20.4 155 39.4 23.5 168
Salt River Summit 7760 19.5 10.9 179 25.2 13.9 181
Snake River Station 6920 20.5 14.7 139 30.5 19.2 159
Spring Creek Divide 9000 34.0 19.3 176 -M 19.9 *
Thumb Divide 7980 20.3 12.6 161 21.7 15.3 142
Togwotee Pass 9580 28.3 18.8 151 32.4 20.0 162
Two Ocean Plateau 9240 -M 22.1 * -M 22.5 *
Willow Creek 8380 28.8 23.4 123 42.2 27.7 152
Younts Peak 8350 23.1 12.0 192 25.7 13.0 198
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Basin Index (%) 152 158
MADISON-GALLATIN
Black Bear 8170 38.4 30.5 126 44.7 32.0 140
Canyon 7870 15.7 11.1 141 21.8 13.5 161
Madison Plateau 7750 23.4 18.4 127 31.1 22.1 141
West Yellowstone 6700 12.0 9.2 130 20.1 12.0 168
Whiskey Creek 6800 14.3 12.5 114 22.8 16.9 135
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Basin Index (%) 127 146
YELLOWSTONE
Beartooth Lake 9360 26.2 17.7 148 21.6 16.3 133
Burnt Mtn 5880 5.5 4.3 128 11.2 9.8 114
Canyon 7870 15.7 11.1 141 21.8 13.5 161
Cole Creek 7850 8.6 10.7 80 6.3 9.4 67
Evening Star 9200 31.1 20.1 155 34.1 22.8 150
Fisher Creek 9100 33.6 26.3 128 37.8 26.4 143
Northeast Entrance 7350 10.6 8.5 125 16.2 10.2 159
Parker Peak 9400 27.2 16.3 167 23.4 14.5 161
Sylvan Lake 8420 20.9 16.4 127 32.1 18.5 174
Thumb Divide 7980 20.3 12.6 161 21.7 15.3 142
Two Ocean Plateau 9240 -M 22.1 * -M 22.5 *
White Mill 8700 26.0 18.8 138 27.6 19.7 140
Wolverine 7650 13.4 8.8 152 18.0 10.2 176
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Basin Index (%) 139 146
WIND RIVER
Burroughs Creek 8750 20.9 -M * 22.9 -M *
Castle Creek 8400 11.5 -M * 13.6 -M *
Cold Springs 9630 12.0 5.7 211 14.2 7.8 182
Deer Park 9700 28.2 11.2 252 30.1 15.6 193
Hobbs Park 10100 21.8 10.4 210 19.9 10.0 199
Kirwin 9550 16.5 7.4 223 19.2 9.1 211
Little Warm 9370 14.5 8.3 175 20.0 10.2 196
Owl Creek 8975 6.8 4.1 166 8.5 4.4 193
South Pass 9040 25.9 12.0 216 23.2 14.0 166
St. Lawrence Alt 8620 7.3 5.6 130 12.0 6.8 176
Togwotee Pass 9580 28.3 18.8 151 32.4 20.0 162
Townsend Creek 8700 12.4 7.1 175 15.6 9.0 173
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Basin Index (%) 192 183
BIGHORN BASIN
Bald Mtn. 9380 15.5 15.5 100 13.6 13.5 101
Bear Trap Meadow 8200 4.6 4.6 100 5.8 6.4 91
Bone Springs Div 9350 13.7 12.9 106 13.4 12.2 110
Grave Springs 8550 5.3 7.1 75 5.9 8.2 72
Kirwin 9550 16.5 7.4 223 19.2 9.1 211
Marquette 8760 7.7 -M * 11.4 -M *
Middle Powder 7760 6.1 8.4 73 6.1 9.0 68
Owl Creek 8975 6.8 4.1 166 8.5 4.4 193
Powder River Pass 9480 6.4 8.2 78 9.3 9.9 94
Shell Creek 9580 13.2 12.0 110 10.4 10.9 95
Timber Creek 7950 5.4 3.9 138 6.9 5.4 128
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Basin Index (%) 111 111
SHOSHONE RIVER
Blackwater 9780 31.1 18.1 172 34.4 16.6 207
Evening Star 9200 31.1 20.1 155 34.1 22.8 150
Marquette 8760 7.7 -M * 11.4 -M *
Sylvan Road 7120 14.3 9.8 146 25.8 14.3 180
Younts Peak 8350 23.1 12.0 192 25.7 13.0 198
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Basin Index (%) 166 180
POWDER RIVER
Bear Trap Meadow 8200 4.6 4.6 100 5.8 6.4 91
Cloud Peak Reservoir 9860 10.3 11.0 94 11.7 9.9 118
Grave Springs 8550 5.3 7.1 75 5.9 8.2 72
Hansen Sawmill 8360 6.9 4.8 144 8.8 6.3 140
Middle Powder 7760 6.1 8.4 73 6.1 9.0 68
Powder River Pass 9480 6.4 8.2 78 9.3 9.9 94
Soldier Park 8720 10.1 -M * 8.6 -M *
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Basin Index (%) 90 96
TONGUE RIVER
Big Goose 7990 7.4 6.5 114 8.3 8.1 102
Bone Springs Div 9350 13.7 12.9 106 13.4 12.2 110
Burgess Junction 7880 7.5 8.8 85 8.6 9.4 91
Dome Lake 8880 9.9 9.0 110 10.8 10.2 106
Little Goose 8870 8.0 -M * 10.4 -M *
Sucker Creek 8880 8.9 9.5 94 9.0 10.9 83
Tie Creek 6870 5.0 4.6 109 9.1 8.7 105
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Basin Index (%) 102 99
BELLE FOURCHE
Cole Canyon 5910 3.0 4.9 61 5.8 7.3 79
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Basin Index (%) 61 79
CHEYENNE RIVER BASIN
Blind Park 6890 4.4 6.5 68 6.9 9.7 71
North Rapid Creek 6130 4.7 6.1 77 5.9 7.8 76
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Basin Index (%) 72 73
UPPER N. PLATTE
Arapaho Ridge 10960 22.7 17.2 132 22.9 18.2 126
Blackhall Mtn 9820 33.6 -M * 32.2 -M *
Columbine 9160 23.5 20.5 115 24.9 20.9 119
Divide Peak 8880 18.3 16.5 111 20.3 17.4 117
Joe Wright 10120 18.0 17.6 102 25.0 20.7 121
Laprele Creek 8375 10.7 7.9 135 10.1 9.7 104
Med Bow 10500 34.2 -M * 30.5 -M *
North French Creek 10130 22.9 21.6 106 23.6 21.6 109
Never Summer 10280 20.8 16.5 126 17.0 -M *
Old Battle 10000 33.9 24.7 137 34.6 28.8 120
Rawah 9020 11.8 9.0 131 14.8 11.2 132
Sage Creek Basin 7850 15.3 10.9 140 14.7 12.1 121
Sand Lake 10050 26.4 21.7 122 24.2 19.6 123
South Brush Creek 8440 10.5 10.8 97 11.1 12.1 92
Tower 10500 38.8 37.4 104 39.3 32.9 119
Webber Springs 9250 26.9 19.4 139 30.3 21.9 138
Willow Creek Pass 9540 16.0 9.9 162 16.8 10.7 157
Zirkel 9340 38.9 24.2 161 38.7 23.8 163
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Basin Index (%) 124 125
SWEETWATER
Deer Park 9700 28.2 11.2 252 30.1 15.6 193
Larsen Creek 9000 18.3 9.9 185 20.6 -M *
South Pass 9040 25.9 12.0 216 23.2 14.0 166
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Basin Index (%) 219 180
LOWER N. PLATTE
Casper Mtn. 7900 10.0 10.9 92 9.3 11.5 81
Laprele Creek 8375 10.7 7.9 135 10.1 9.7 104
Reno Hill 8400 10.2 10.8 94 10.4 11.6 90
Windy Peak 7900 9.4 6.1 154 9.6 8.1 119
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Basin Index (%) 113 96
LARAMIE RIVER
Brooklyn Lake 10240 22.3 15.9 140 20.0 16.7 120
Cinnabar Park 9574 17.5 17.5 100 19.7 20.0 98
Crow Creek 8330 4.9 6.9 71 7.5 8.2 91
Deadman Hill 10220 18.6 12.7 146 17.7 13.4 132
Rawah 9020 11.8 9.0 131 14.8 11.2 132
Roach 9700 15.2 12.8 119 17.9 15.3 117
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Basin Index (%) 121 115
S. PLATTE
Black Mountain 8920 9.3 -M * 10.3 -M *
Crow Creek 8330 4.9 6.9 71 7.5 8.2 91
Deadman Hill 10220 18.6 12.7 146 17.7 13.4 132
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Basin Index (%) 120 117
LITTLE SNAKE RIVER
Battle Mountain 7440 10.8 10.1 107 14.9 12.5 119
Divide Peak 8880 18.3 16.5 111 20.3 17.4 117
Elk River 8700 20.0 16.3 123 18.7 16.5 113
Little Snake River 8915 30.1 20.0 150 34.3 25.4 135
Old Battle 10000 33.9 24.7 137 34.6 28.8 120
Sage Creek Basin 7850 15.3 10.9 140 14.7 12.1 121
Sandstone RS 8150 11.9 11.3 105 14.7 15.5 95
Whiskey Park 8950 26.1 22.4 117 27.1 23.1 117
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Basin Index (%) 126 119
UPPER GREEN RIVER
Big Sandy Opening 9080 19.4 10.4 187 20.9 10.8 194
Blind Bull Sum 8650 37.6 18.7 201 -M 16.5 *
East Rim Divide 7930 17.8 8.8 202 19.1 9.9 193
Elkhart Park G.S. 9400 16.5 9.7 170 20.8 10.9 191
Gros Ventre Summit 8750 -M 10.4 * -M 10.5 *
Gunsight Pass 9820 18.6 11.1 168 21.3 11.1 192
Kendall R.S. 7740 21.5 10.1 213 24.6 12.1 203
Loomis Park 8240 25.0 12.3 203 27.7 14.5 191
New Fork Lake 8340 15.3 8.6 178 15.3 9.1 168
Pocket Creek 9360 -M -M * -M -M *
Snider Basin 8060 19.3 10.3 187 24.0 11.9 202
Spring Creek Divide 9000 34.0 19.3 176 -M 19.9 *
Triple Peak 8500 33.3 17.8 187 35.3 20.9 169
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Basin Index (%) 188 188
LOWER GREEN RIVER
Blacks Fork Jct 8869 10.5 -M * 13.4 -M *
Buck Pasture 9632 17.8 -M * 19.8 -M *
EF Blacks Fork GS 9360 14.7 -M * 13.7 -M *
Hams Fork 7840 16.5 9.6 172 17.8 9.4 189
Hewinta 9500 12.4 8.3 149 14.2 11.2 127
Hickerson Park 9122 8.3 6.2 134 8.5 7.9 108
Hole-in-Rock 9168 6.8 5.8 117 9.0 7.4 122
Indian Creek 9425 35.1 19.5 180 -M 18.4 *
Kelley R.S. 8180 24.3 12.4 196 27.1 15.0 181
Spirit Lk 10235 13.6 -M * 14.5 -M *
Steel Creek Park 10158 15.0 12.1 124 16.6 12.9 129
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Basin Index (%) 160 146
UPPER BEAR RIVER
Bear River RS 8777 12.8 -M * 15.1 -M *
Bug Lake 7987 29.1 15.4 189 28.5 16.0 178
Burts Miller Ranch 8000 7.8 -M * 8.4 -M *
Chalk Creek #1 9171 31.1 19.0 164 31.5 20.3 155
Hayden Fork 9130 22.4 12.5 179 26.0 17.0 153
Kelley R.S. 8180 24.3 12.4 196 27.1 15.0 181
Lily Lake 9133 13.9 10.7 130 16.7 13.8 121
Monte Cristo 8932 32.5 22.1 147 30.3 21.2 143
Salt River Summit 7760 19.5 10.9 179 25.2 13.9 181
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Basin Index (%) 168 158
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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.