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 24 , 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 23.5 13.1 179 31.5 16.8 188
Black Bear 8170 35.1 28.5 123 42.4 29.9 142
Blind Bull Sum 8650 36.0 17.4 207 -M 15.5 *
Cottonwood Creek 7670 24.0 16.1 149 31.0 18.9 164
East Rim Divide 7930 17.0 7.7 221 18.4 9.2 200
Grand Targhee 9260 35.1 28.6 123 -M 24.1 *
Granite Creek 6770 27.5 13.2 208 -M 16.0 *
Grassy Lake 7265 31.1 25.2 123 42.7 28.8 148
Gros Ventre Summit 8750 16.6 9.4 177 -M 9.8 *
Gunsight Pass 9820 17.5 10.2 172 20.4 10.5 194
Lewis Lake Divide 7850 32.4 24.9 130 41.6 28.1 148
Phillips Bench 8200 30.5 19.1 160 38.7 22.1 175
Salt River Summit 7760 18.9 10.3 183 -M 13.0 *
Snake River Station 6920 19.2 13.8 139 30.0 18.2 165
Spring Creek Divide 9000 32.2 17.6 183 -M 18.7 *
Thumb Divide 7980 19.6 11.5 170 -M 14.2 *
Togwotee Pass 9580 27.2 17.2 158 31.2 18.8 166
Two Ocean Plateau 9240 -M 21.0 * -M 21.0 *
Willow Creek 8380 28.4 21.5 132 40.8 26.0 157
Younts Peak 8350 21.9 11.4 192 24.8 12.3 202
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Basin Index (%) 156 164
MADISON-GALLATIN
Black Bear 8170 35.1 28.5 123 42.4 29.9 142
Canyon 7870 14.9 10.2 146 21.2 12.7 167
Madison Plateau 7750 21.8 17.3 126 29.7 20.5 145
West Yellowstone 6700 11.3 8.5 133 19.5 11.3 173
Whiskey Creek 6800 13.1 11.6 113 21.9 15.8 139
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Basin Index (%) 126 149
YELLOWSTONE
Beartooth Lake 9360 24.9 16.0 156 20.4 15.2 134
Burnt Mtn 5880 5.4 3.9 138 10.9 9.1 120
Canyon 7870 14.9 10.2 146 21.2 12.7 167
Cole Creek 7850 8.3 9.2 90 6.1 8.8 69
Evening Star 9200 29.6 18.7 158 33.7 21.5 157
Fisher Creek 9100 31.5 25.0 126 35.7 24.8 144
Northeast Entrance 7350 9.7 7.7 126 15.6 9.6 162
Parker Peak 9400 25.4 15.4 165 23.3 13.6 171
Sylvan Lake 8420 20.0 15.4 130 31.0 17.4 178
Thumb Divide 7980 19.6 11.5 170 -M 14.2 *
Two Ocean Plateau 9240 -M 21.0 * -M 21.0 *
White Mill 8700 24.1 17.8 135 26.0 18.5 141
Wolverine 7650 14.0 8.4 167 17.4 9.7 179
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Basin Index (%) 143 150
WIND RIVER
Burroughs Creek 8750 20.3 -M * 22.1 -M *
Castle Creek 8400 11.0 -M * 13.1 -M *
Cold Springs 9630 11.6 5.4 215 13.8 7.2 192
Deer Park 9700 27.1 10.5 258 27.9 14.5 192
Hobbs Park 10100 20.9 9.2 227 19.3 9.1 212
Kirwin 9550 15.6 6.7 233 18.0 8.5 212
Little Warm 9370 13.7 7.7 178 19.3 9.5 203
Owl Creek 8975 6.5 3.7 176 8.2 4.2 195
South Pass 9040 24.8 10.9 228 22.6 13.0 174
St. Lawrence Alt 8620 -M 5.0 * 11.8 6.2 190
Togwotee Pass 9580 27.2 17.2 158 31.2 18.8 166
Townsend Creek 8700 -M 6.2 * -M 8.4 *
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Basin Index (%) 207 189
BIGHORN BASIN
Bald Mtn. 9380 14.3 14.1 101 12.3 12.6 98
Bear Trap Meadow 8200 4.0 4.1 98 5.3 5.9 90
Bone Springs Div 9350 12.2 11.4 107 11.9 11.3 105
Grave Springs 8550 4.9 6.3 78 5.5 7.5 73
Kirwin 9550 15.6 6.7 233 18.0 8.5 212
Marquette 8760 7.1 -M * 10.8 -M *
Middle Powder 7760 5.7 7.6 75 5.3 8.4 63
Owl Creek 8975 6.5 3.7 176 8.2 4.2 195
Powder River Pass 9480 5.7 7.6 75 8.3 9.2 90
Shell Creek 9580 12.1 10.9 111 9.3 10.2 91
Timber Creek 7950 5.1 3.1 165 6.5 5.0 130
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Basin Index (%) 114 109
SHOSHONE RIVER
Blackwater 9780 29.4 16.7 176 32.8 15.6 210
Evening Star 9200 29.6 18.7 158 33.7 21.5 157
Marquette 8760 7.1 -M * 10.8 -M *
Sylvan Road 7120 14.1 9.0 157 25.3 13.6 186
Younts Peak 8350 21.9 11.4 192 24.8 12.3 202
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Basin Index (%) 170 185
POWDER RIVER
Bear Trap Meadow 8200 4.0 4.1 98 5.3 5.9 90
Cloud Peak Reservoir 9860 9.4 10.1 93 10.6 9.2 115
Grave Springs 8550 4.9 6.3 78 5.5 7.5 73
Hansen Sawmill 8360 6.6 4.5 147 8.4 5.8 145
Middle Powder 7760 5.7 7.6 75 5.3 8.4 63
Powder River Pass 9480 5.7 7.6 75 8.3 9.2 90
Soldier Park 8720 9.5 -M * 8.1 -M *
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Basin Index (%) 90 94
TONGUE RIVER
Big Goose 7990 6.9 6.0 115 7.7 7.6 101
Bone Springs Div 9350 12.2 11.4 107 11.9 11.3 105
Burgess Junction 7880 7.0 7.9 89 8.0 8.7 92
Dome Lake 8880 8.6 8.3 104 10.1 9.7 104
Little Goose 8870 7.5 -M * 9.8 -M *
Sucker Creek 8880 8.2 8.5 96 7.9 10.1 78
Tie Creek 6870 4.6 4.2 110 8.5 8.0 106
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Basin Index (%) 103 98
BELLE FOURCHE
Cole Canyon 5910 2.6 4.8 54 4.9 6.9 71
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Basin Index (%) 54 71
CHEYENNE RIVER BASIN
Blind Park 6890 4.4 6.1 72 6.4 9.0 71
North Rapid Creek 6130 4.3 5.7 75 5.5 7.3 75
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Basin Index (%) 74 73
UPPER N. PLATTE
Arapaho Ridge 10960 21.8 15.8 138 22.2 17.0 131
Blackhall Mtn 9820 31.4 -M * 30.7 -M *
Columbine 9160 21.9 19.0 115 23.5 19.6 120
Divide Peak 8880 16.9 15.2 111 19.0 16.4 116
Joe Wright 10120 16.9 15.7 108 23.6 19.3 122
Laprele Creek 8375 10.0 7.4 135 9.4 9.0 104
Med Bow 10500 32.1 -M * 29.3 -M *
North French Creek 10130 21.3 20.2 105 22.4 20.3 110
Never Summer 10280 19.6 15.4 127 16.3 -M *
Old Battle 10000 32.1 23.3 138 31.3 27.1 115
Rawah 9020 11.2 8.2 137 14.0 10.3 136
Sage Creek Basin 7850 14.0 10.4 135 14.0 11.4 123
Sand Lake 10050 24.2 20.3 119 22.3 18.3 122
South Brush Creek 8440 9.7 9.7 100 10.2 11.3 90
Tower 10500 36.8 35.2 105 37.2 30.9 120
Webber Springs 9250 25.5 18.1 141 28.9 20.4 142
Willow Creek Pass 9540 15.5 9.1 170 16.3 10.0 163
Zirkel 9340 36.0 22.4 161 36.9 22.6 163
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Basin Index (%) 126 126
SWEETWATER
Deer Park 9700 27.1 10.5 258 27.9 14.5 192
Larsen Creek 9000 17.3 9.1 190 20.0 -M *
South Pass 9040 24.8 10.9 228 22.6 13.0 174
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Basin Index (%) 227 184
LOWER N. PLATTE
Casper Mtn. 7900 9.1 9.7 94 8.5 10.7 79
Laprele Creek 8375 10.0 7.4 135 9.4 9.0 104
Reno Hill 8400 9.5 9.5 100 9.6 10.7 90
Windy Peak 7900 8.7 5.6 155 8.9 7.5 119
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Basin Index (%) 116 96
LARAMIE RIVER
Brooklyn Lake 10240 21.0 14.6 144 18.7 15.5 121
Cinnabar Park 9574 16.2 16.5 98 18.9 19.1 99
Crow Creek 8330 4.5 6.6 68 7.0 7.6 92
Deadman Hill 10220 17.2 12.1 142 16.7 12.3 136
Rawah 9020 11.2 8.2 137 14.0 10.3 136
Roach 9700 14.6 12.1 121 17.2 14.2 121
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Basin Index (%) 121 117
S. PLATTE
Black Mountain 8920 8.5 -M * 9.7 -M *
Crow Creek 8330 4.5 6.6 68 7.0 7.6 92
Deadman Hill 10220 17.2 12.1 142 16.7 12.3 136
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Basin Index (%) 116 119
LITTLE SNAKE RIVER
Battle Mountain 7440 9.7 9.4 103 13.8 11.8 117
Divide Peak 8880 16.9 15.2 111 19.0 16.4 116
Elk River 8700 17.8 14.6 122 17.5 15.5 113
Little Snake River 8915 28.5 19.3 148 33.2 24.3 137
Old Battle 10000 32.1 23.3 138 31.3 27.1 115
Sage Creek Basin 7850 14.0 10.4 135 14.0 11.4 123
Sandstone RS 8150 11.7 10.3 114 13.8 14.6 95
Whiskey Park 8950 23.6 20.5 115 25.3 21.7 117
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Basin Index (%) 125 118
UPPER GREEN RIVER
Big Sandy Opening 9080 18.5 9.6 193 20.5 10.1 203
Blind Bull Sum 8650 36.0 17.4 207 -M 15.5 *
East Rim Divide 7930 17.0 7.7 221 18.4 9.2 200
Elkhart Park G.S. 9400 15.8 9.1 174 20.2 10.1 200
Gros Ventre Summit 8750 16.6 9.4 177 -M 9.8 *
Gunsight Pass 9820 17.5 10.2 172 20.4 10.5 194
Kendall R.S. 7740 20.2 9.6 210 24.2 11.3 214
Loomis Park 8240 23.7 11.4 208 26.9 13.6 198
New Fork Lake 8340 14.8 7.9 187 14.9 8.5 175
Pocket Creek 9360 -M -M * -M -M *
Snider Basin 8060 18.4 9.2 200 23.5 11.2 210
Spring Creek Divide 9000 32.2 17.6 183 -M 18.7 *
Triple Peak 8500 32.1 16.3 197 33.6 19.6 171
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Basin Index (%) 194 195
LOWER GREEN RIVER
Blacks Fork Jct 8869 9.8 -M * 12.5 -M *
Buck Pasture 9632 16.6 -M * 18.9 -M *
EF Blacks Fork GS 9360 13.7 -M * -M -M *
Hams Fork 7840 15.8 8.8 180 17.3 8.9 194
Hewinta 9500 10.6 7.5 141 12.9 10.4 124
Hickerson Park 9122 7.8 5.5 142 7.9 7.3 108
Hole-in-Rock 9168 6.3 5.3 119 8.4 6.8 124
Indian Creek 9425 33.0 18.0 183 -M 17.2 *
Kelley R.S. 8180 23.3 11.4 204 26.7 14.2 188
Spirit Lk 10235 13.3 -M * 14.0 -M *
Steel Creek Park 10158 14.1 11.0 128 15.7 12.0 131
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Basin Index (%) 164 149
UPPER BEAR RIVER
Bear River RS 8777 11.6 -M * 14.0 -M *
Bug Lake 7987 27.2 14.2 192 27.3 15.0 182
Burts Miller Ranch 8000 7.0 -M * 7.5 -M *
Chalk Creek #1 9171 28.8 17.5 165 -M 18.8 *
Hayden Fork 9130 20.0 11.5 174 -M 15.8 *
Kelley R.S. 8180 23.3 11.4 204 26.7 14.2 188
Lily Lake 9133 13.4 9.8 137 15.6 12.8 122
Monte Cristo 8932 30.2 19.9 152 29.4 19.9 148
Salt River Summit 7760 18.9 10.3 183 -M 13.0 *
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Basin Index (%) 171 160*
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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.