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 TUESDAY: JUNE 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 .0 .0 * 43.0 26.1 165
Black Bear 8170 28.7 19.3 149 62.0 47.1 132
Blind Bull Sum 8650 -M 7.4 * 40.4 24.8 163
Cottonwood Creek 7670 .0 .0 * 46.4 32.0 145
East Rim Divide 7930 .1 .0 * 24.0 15.4 156
Grand Targhee 9260 39.3 37.9 104 53.4 39.6 135
Granite Creek 6770 .0 .0 * 41.1 24.7 166
Grassy Lake 7265 5.1 .0 * 63.0 44.4 142
Gros Ventre Summit 8750 -M .0 * -M 17.4 *
Gunsight Pass 9820 10.3 .0 * 30.1 19.1 158
Lewis Lake Divide 7850 15.0 6.1 246 60.5 43.4 139
Phillips Bench 8200 14.2 5.5 258 51.7 34.9 148
Salt River Summit 7760 .0 .0 * 32.8 21.2 155
Snake River Station 6920 .0 .0 * 39.9 28.3 141
Spring Creek Divide 9000 21.6 7.1 304 46.7 29.6 158
Thumb Divide 7980 .4 .0 * 31.5 24.4 129
Togwotee Pass 9580 23.2 17.9 130 45.0 31.5 143
Two Ocean Plateau 9240 -M 22.0 * -M 35.0 *
Willow Creek 8380 -M .0 * 60.3 43.3 139
Younts Peak 8350 .0 1.0 0* 35.8 21.2 169
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Basin Index (%) 167* 147
MADISON-GALLATIN
Black Bear 8170 28.7 19.3 149 62.0 47.1 132
Canyon 7870 .0 .0 * 30.6 21.4 143
Madison Plateau 7750 1.8 2.2 82* 41.6 33.9 123
West Yellowstone 6700 .0 .0 * 26.9 19.2 140
Whiskey Creek 6800 .0 .0 * 32.2 26.4 122
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Basin Index (%) 142* 131
YELLOWSTONE
Beartooth Lake 9360 27.2 14.2 192 33.5 25.7 130
Burnt Mtn 5880 .0 .0 * 24.1 21.4 113
Canyon 7870 .0 .0 * 30.6 21.4 143
Cole Creek 7850 3.2 4.4 73 20.2 22.0 92
Evening Star 9200 23.6 14.6 162 51.3 35.7 144
Fisher Creek 9100 30.4 25.1 121 53.9 40.9 132
Northeast Entrance 7350 .0 .0 * 23.9 17.2 139
Parker Peak 9400 19.2 10.4 185 41.6 24.3 171
Sylvan Lake 8420 .5 1.8 28* 43.7 30.0 146
Thumb Divide 7980 .4 .0 * 31.5 24.4 129
Two Ocean Plateau 9240 -M 22.0 * -M 35.0 *
White Mill 8700 17.8 13.6 131 40.7 31.1 131
Wolverine 7650 -M .0 * 24.8 16.9 147
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Basin Index (%) 145* 135
WIND RIVER
Burroughs Creek 8750 .0 -M * 31.9 -M *
Castle Creek 8400 .0 -M * 19.2 -M *
Cold Springs 9630 .0 .0 * 25.4 15.8 161
Deer Park 9700 24.9 .0 * 47.7 27.6 173
Hobbs Park 10100 23.4 3.0 780 38.9 21.1 184
Kirwin 9550 6.3 .5 1260* 31.4 17.5 179
Little Warm 9370 .0 .0 * 28.4 18.9 150
Owl Creek 8975 .0 .0 * 17.6 11.2 157
South Pass 9040 19.1 .0 * 38.2 24.0 159
St. Lawrence Alt 8620 .1 .0 * 23.5 15.0 157
Togwotee Pass 9580 23.2 17.9 130 45.0 31.5 143
Townsend Creek 8700 .1 .0 * 33.3 18.7 178
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Basin Index (%) 454* 164
BIGHORN BASIN
Bald Mtn. 9380 14.1 10.6 133 23.9 24.0 100
Bear Trap Meadow 8200 .0 .0 * 17.8 14.3 124
Bone Springs Div 9350 7.1 4.2 169 24.2 22.8 106
Grave Springs 8550 .0 .0 * 16.3 16.5 99
Kirwin 9550 6.3 .5 1260* 31.4 17.5 179
Marquette 8760 -M -M * 27.2 -M *
Middle Powder 7760 .0 .0 * 17.0 17.8 96
Owl Creek 8975 .0 .0 * 17.6 11.2 157
Powder River Pass 9480 .0 .0 * 20.4 19.3 106
Shell Creek 9580 4.6 5.7 81 20.4 20.4 100
Timber Creek 7950 .0 .0 * 19.1 14.1 135
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Basin Index (%) 153* 117
SHOSHONE RIVER
Blackwater 9780 30.5 16.4 186 48.5 27.9 174
Evening Star 9200 23.6 14.6 162 51.3 35.7 144
Marquette 8760 -M -M * 27.2 -M *
Sylvan Road 7120 .0 .0 * 33.2 21.8 152
Younts Peak 8350 .0 1.0 0* 35.8 21.2 169
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Basin Index (%) 169* 158
POWDER RIVER
Bear Trap Meadow 8200 .0 .0 * 17.8 14.3 124
Cloud Peak Reservoir 9860 10.5 1.5 700* 29.3 21.8 134
Grave Springs 8550 .0 .0 * 16.3 16.5 99
Hansen Sawmill 8360 .0 .0 * -M 14.8 *
Middle Powder 7760 .0 .0 * 17.0 17.8 96
Powder River Pass 9480 .0 .0 * 20.4 19.3 106
Soldier Park 8720 .0 -M * 23.3 -M *
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Basin Index (%) 700* 112
TONGUE RIVER
Big Goose 7990 .0 .0 * 22.5 18.6 121
Bone Springs Div 9350 7.1 4.2 169 24.2 22.8 106
Burgess Junction 7880 .0 .0 * 20.5 18.5 111
Dome Lake 8880 1.2 .0 * 25.6 20.8 123
Little Goose 8870 1.2 -M * 26.4 -M *
Sucker Creek 8880 .0 .0 * 23.2 22.0 105
Tie Creek 6870 .1 .0 * 24.7 19.2 129
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Basin Index (%) 200* 115
BELLE FOURCHE
Cole Canyon 5910 .0 .0 * 14.3 17.9 80
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Basin Index (%) * 80
CHEYENNE RIVER BASIN
Blind Park 6890 .0 .0 * 15.3 19.2 80
North Rapid Creek 6130 .0 .0 * 14.2 16.8 85
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Basin Index (%) * 82
UPPER N. PLATTE
Arapaho Ridge 10960 14.2 4.2 338 33.6 29.9 112
Blackhall Mtn 9820 19.0 -M * 45.3 -M *
Columbine 9160 .0 .0 * 35.5 31.9 111
Divide Peak 8880 .0 .0 * 28.7 27.8 103
Joe Wright 10120 10.7 11.1 96 38.3 34.9 110
Laprele Creek 8375 .4 .0 * 18.9 18.4 103
Med Bow 10500 29.5 -M * 44.3 -M *
North French Creek 10130 14.3 16.9 85 37.1 35.6 104
Never Summer 10280 19.2 13.0 148 26.4 -M *
Old Battle 10000 31.3 17.9 175 47.1 44.1 107
Rawah 9020 .1 .0 * 23.2 20.4 114
Sage Creek Basin 7850 -M .0 * 19.4 18.2 107
Sand Lake 10050 27.7 17.9 155 35.8 33.8 106
South Brush Creek 8440 .0 .0 * 18.1 21.4 85
Tower 10500 32.6 32.7 100 56.5 49.9 113
Webber Springs 9250 .4 .0 * 40.7 33.4 122
Willow Creek Pass 9540 1.3 .0 * 23.8 18.9 126
Zirkel 9340 .0 .0 * 51.0 34.8 147
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Basin Index (%) 134* 112
SWEETWATER
Deer Park 9700 24.9 .0 * 47.7 27.6 173
Larsen Creek 9000 .2 .0 * 28.4 -M *
South Pass 9040 19.1 .0 * 38.2 24.0 159
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Basin Index (%) * 166
LOWER N. PLATTE
Casper Mtn. 7900 .5 .0 * 23.4 22.4 104
Laprele Creek 8375 .4 .0 * 18.9 18.4 103
Reno Hill 8400 .0 .0 * 23.3 23.2 100
Windy Peak 7900 .1 .0 * 19.0 16.6 114
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Basin Index (%) * 105
LARAMIE RIVER
Brooklyn Lake 10240 .3 1.4 21* 30.6 28.7 107
Cinnabar Park 9574 .0 .0 * 29.5 31.1 95
Crow Creek 8330 .0 .0 * 16.2 17.5 93
Deadman Hill 10220 11.7 2.8 418 30.4 24.5 124
Rawah 9020 .1 .0 * 23.2 20.4 114
Roach 9700 .4 .0 * 29.1 26.2 111
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Basin Index (%) 298* 107
S. PLATTE
Black Mountain 8920 -M -M * 21.2 -M *
Crow Creek 8330 .0 .0 * 16.2 17.5 93
Deadman Hill 10220 11.7 2.8 418 30.4 24.5 124
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Basin Index (%) 418* 111
LITTLE SNAKE RIVER
Battle Mountain 7440 .0 .0 * 21.1 19.5 108
Divide Peak 8880 .0 .0 * 28.7 27.8 103
Elk River 8700 .0 .0 * 25.0 25.9 97
Little Snake River 8915 .2 .5 40* 46.1 36.8 125
Old Battle 10000 31.3 17.9 175 47.1 44.1 107
Sage Creek Basin 7850 -M .0 * 19.4 18.2 107
Sandstone RS 8150 .0 .0 * 20.6 23.6 87
Whiskey Park 8950 .6 .8 75* 37.7 35.4 106
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Basin Index (%) 167* 106
UPPER GREEN RIVER
Big Sandy Opening 9080 .0 .0 * 27.5 18.4 149
Blind Bull Sum 8650 -M 7.4 * 40.4 24.8 163
East Rim Divide 7930 .1 .0 * 24.0 15.4 156
Elkhart Park G.S. 9400 .0 .0 * 27.7 18.4 151
Gros Ventre Summit 8750 -M .0 * -M 17.4 *
Gunsight Pass 9820 10.3 .0 * 30.1 19.1 158
Kendall R.S. 7740 .0 .0 * 31.9 18.0 177
Loomis Park 8240 .2 .0 * 35.9 21.9 164
New Fork Lake 8340 .0 .0 * 23.3 15.0 155
Pocket Creek 9360 -M -M * -M -M *
Snider Basin 8060 .0 .0 * 30.3 17.8 170
Spring Creek Divide 9000 21.6 7.1 304 46.7 29.6 158
Triple Peak 8500 5.6 .0 * 46.4 32.0 145
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Basin Index (%) 532* 158
LOWER GREEN RIVER
Blacks Fork Jct 8869 .1 -M * 20.0 -M *
Buck Pasture 9632 .1 -M * 28.7 -M *
EF Blacks Fork GS 9360 -M -M * 24.1 -M *
Hams Fork 7840 .1 .0 * 25.2 15.6 162
Hewinta 9500 .0 .0 * 22.4 18.9 119
Hickerson Park 9122 .0 .0 * 16.4 14.6 112
Hole-in-Rock 9168 .0 .0 * 17.3 14.3 121
Indian Creek 9425 19.3 6.3 306 47.5 28.4 167
Kelley R.S. 8180 .0 .0 * 35.8 23.2 154
Spirit Lk 10235 .0 -M * 22.6 -M *
Steel Creek Park 10158 4.4 6.9 64 26.9 22.4 120
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Basin Index (%) 180* 139
UPPER BEAR RIVER
Bear River RS 8777 .0 -M * 22.4 -M *
Bug Lake 7987 .8 .0 * 39.2 24.9 157
Burts Miller Ranch 8000 .0 -M * 12.6 -M *
Chalk Creek #1 9171 2.0 2.1 95* 42.9 32.5 132
Hayden Fork 9130 .0 .0 * 33.0 27.2 121
Kelley R.S. 8180 .0 .0 * 35.8 23.2 154
Lily Lake 9133 .0 .0 * 24.3 22.7 107
Monte Cristo 8932 7.4 .0 * 46.4 33.3 139
Salt River Summit 7760 .0 .0 * 32.8 21.2 155
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Basin Index (%) 486* 138
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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.