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 SATURDAY: JUNE 10 , 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 * 43.5 26.7 163
Black Bear 8170 23.0 16.3 141 62.7 47.9 131
Blind Bull Sum 8650 -M 4.5 * 40.5 25.2 161
Cottonwood Creek 7670 .0 .0 * 46.9 32.5 144
East Rim Divide 7930 .0 .0 * 24.3 15.7 155
Grand Targhee 9260 31.9 36.5 87 54.1 41.2 131
Granite Creek 6770 .0 .0 * 41.1 24.9 165
Grassy Lake 7265 -M .0 * 63.6 45.3 140
Gros Ventre Summit 8750 -M .0 * 27.8 17.9 155
Gunsight Pass 9820 5.4 .0 * 30.1 19.5 154
Lewis Lake Divide 7850 8.4 .7 1200* 60.6 44.0 138
Phillips Bench 8200 9.0 2.0 450* 52.2 35.5 147
Salt River Summit 7760 .0 .0 * 32.5 21.6 150
Snake River Station 6920 .0 .0 * 40.2 28.9 139
Spring Creek Divide 9000 15.8 2.9 545 46.7 30.0 156
Thumb Divide 7980 .2 .0 * 31.7 24.9 127
Togwotee Pass 9580 19.1 17.0 112 45.1 32.1 140
Two Ocean Plateau 9240 -M 20.3 * -M 35.7 *
Willow Creek 8380 -M .0 * 60.5 44.0 138
Younts Peak 8350 .0 .0 * 35.6 21.8 163
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Basin Index (%) 150* 145
MADISON-GALLATIN
Black Bear 8170 23.0 16.3 141 62.7 47.9 131
Canyon 7870 .1 .0 * 30.3 22.0 138
Madison Plateau 7750 .0 .0 * 42.1 34.4 122
West Yellowstone 6700 .1 .0 * 27.3 19.7 139
Whiskey Creek 6800 .0 .0 * 31.9 27.0 118
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Basin Index (%) 142* 129
YELLOWSTONE
Beartooth Lake 9360 23.6 12.1 195 33.6 26.3 128
Burnt Mtn 5880 .0 .0 * 24.2 22.4 108
Canyon 7870 .1 .0 * 30.3 22.0 138
Cole Creek 7850 .0 1.7 0* 20.2 22.8 89
Evening Star 9200 19.0 12.7 150 51.5 36.7 140
Fisher Creek 9100 26.4 22.4 118 54.0 41.8 129
Northeast Entrance 7350 .0 .0 * 24.3 17.8 137
Parker Peak 9400 13.9 8.9 156 41.9 25.2 166
Sylvan Lake 8420 .4 .4 100* 44.4 30.9 144
Thumb Divide 7980 .2 .0 * 31.7 24.9 127
Two Ocean Plateau 9240 -M 20.3 * -M 35.7 *
White Mill 8700 13.0 11.5 113 40.6 31.9 127
Wolverine 7650 -M .0 * 25.0 17.3 145
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Basin Index (%) 139* 132
WIND RIVER
Burroughs Creek 8750 .0 -M * 32.8 -M *
Castle Creek 8400 .0 -M * 19.4 -M *
Cold Springs 9630 .0 .0 * 25.5 16.3 156
Deer Park 9700 21.0 .0 * 47.9 28.2 170
Hobbs Park 10100 17.3 .6 2883* 38.5 21.5 179
Kirwin 9550 .3 .0 * 31.4 18.1 173
Little Warm 9370 .0 .0 * 28.7 19.3 149
Owl Creek 8975 .0 .0 * 18.1 11.6 156
South Pass 9040 8.5 .0 * 38.7 24.5 158
St. Lawrence Alt 8620 .1 .0 * 23.6 15.4 153
Togwotee Pass 9580 19.1 17.0 112 45.1 32.1 140
Townsend Creek 8700 -M .0 * 33.2 19.0 175
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Basin Index (%) 377* 161
BIGHORN BASIN
Bald Mtn. 9380 6.3 7.9 80 24.1 24.7 98
Bear Trap Meadow 8200 .0 .0 * 17.8 14.8 120
Bone Springs Div 9350 .4 1.7 24 23.7 23.6 100
Grave Springs 8550 .0 .0 * 16.0 17.0 94
Kirwin 9550 .3 .0 * 31.4 18.1 173
Marquette 8760 .0 -M * 27.1 -M *
Middle Powder 7760 .0 .0 * 17.0 18.4 92
Owl Creek 8975 .0 .0 * 18.1 11.6 156
Powder River Pass 9480 .0 .0 * 21.4 20.0 107
Shell Creek 9580 .1 2.9 3 21.3 21.2 100
Timber Creek 7950 .0 .0 * 19.1 14.7 130
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Basin Index (%) 57* 114
SHOSHONE RIVER
Blackwater 9780 27.1 14.9 182 48.9 28.6 171
Evening Star 9200 19.0 12.7 150 51.5 36.7 140
Marquette 8760 .0 -M * 27.1 -M *
Sylvan Road 7120 .0 .0 * 33.6 22.4 150
Younts Peak 8350 .0 .0 * 35.6 21.8 163
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Basin Index (%) 167* 155
POWDER RIVER
Bear Trap Meadow 8200 .0 .0 * 17.8 14.8 120
Cloud Peak Reservoir 9860 3.3 .7 471* 29.6 22.6 131
Grave Springs 8550 .0 .0 * 16.0 17.0 94
Hansen Sawmill 8360 .0 .0 * -M 15.4 *
Middle Powder 7760 .0 .0 * 17.0 18.4 92
Powder River Pass 9480 .0 .0 * 21.4 20.0 107
Soldier Park 8720 .0 -M * 23.4 -M *
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Basin Index (%) 471* 110
TONGUE RIVER
Big Goose 7990 .0 .0 * 22.7 19.3 118
Bone Springs Div 9350 .4 1.7 24 23.7 23.6 100
Burgess Junction 7880 .0 .0 * 21.1 19.1 110
Dome Lake 8880 -M .0 * 26.0 21.5 121
Little Goose 8870 .0 -M * 26.3 -M *
Sucker Creek 8880 .0 .0 * 23.6 22.8 104
Tie Creek 6870 .0 .0 * 25.3 20.0 126
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Basin Index (%) 24* 113
BELLE FOURCHE
Cole Canyon 5910 .0 .0 * 14.3 18.4 78
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Basin Index (%) * 78
CHEYENNE RIVER BASIN
Blind Park 6890 .0 .0 * 15.3 19.7 78
North Rapid Creek 6130 .0 .0 * 15.2 17.3 88
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Basin Index (%) * 82
UPPER N. PLATTE
Arapaho Ridge 10960 10.0 2.0 500* 33.6 30.2 111
Blackhall Mtn 9820 13.7 -M * 45.9 -M *
Columbine 9160 .2 .0 * 35.6 32.2 111
Divide Peak 8880 .0 .0 * 28.7 28.2 102
Joe Wright 10120 7.0 8.0 88 38.3 35.4 108
Laprele Creek 8375 .0 .0 * 19.1 18.9 101
Med Bow 10500 24.4 -M * 45.1 -M *
North French Creek 10130 9.4 14.2 66 37.3 36.2 103
Never Summer 10280 12.6 10.0 126 26.7 -M *
Old Battle 10000 27.7 11.5 241 47.3 44.6 106
Rawah 9020 .1 .0 * 23.5 20.7 114
Sage Creek Basin 7850 -M .0 * 19.4 18.5 105
Sand Lake 10050 25.2 14.4 175 35.8 34.5 104
South Brush Creek 8440 .0 .0 * 18.6 21.9 85
Tower 10500 26.9 28.0 96 56.7 50.5 112
Webber Springs 9250 .1 .0 * 40.6 33.9 120
Willow Creek Pass 9540 .1 .0 * 24.0 19.3 124
Zirkel 9340 .0 .0 * 50.9 35.3 144
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Basin Index (%) 135* 111
SWEETWATER
Deer Park 9700 21.0 .0 * 47.9 28.2 170
Larsen Creek 9000 .0 .0 * 28.3 -M *
South Pass 9040 8.5 .0 * 38.7 24.5 158
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Basin Index (%) * 164
LOWER N. PLATTE
Casper Mtn. 7900 .0 .0 * 23.8 22.9 104
Laprele Creek 8375 .0 .0 * 19.1 18.9 101
Reno Hill 8400 .0 .0 * 23.7 23.7 100
Windy Peak 7900 .2 .0 * 19.0 17.1 111
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Basin Index (%) * 104
LARAMIE RIVER
Brooklyn Lake 10240 .3 .4 75* 30.8 29.2 105
Cinnabar Park 9574 .0 .0 * 30.2 31.5 96
Crow Creek 8330 .1 .0 * 16.5 17.7 93
Deadman Hill 10220 6.5 .6 1083* 30.4 24.9 122
Rawah 9020 .1 .0 * 23.5 20.7 114
Roach 9700 .0 .0 * 29.1 26.7 109
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Basin Index (%) 700* 107
S. PLATTE
Black Mountain 8920 -M -M * 21.2 -M *
Crow Creek 8330 .1 .0 * 16.5 17.7 93
Deadman Hill 10220 6.5 .6 1083* 30.4 24.9 122
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Basin Index (%) 1100* 110
LITTLE SNAKE RIVER
Battle Mountain 7440 .0 .0 * 21.1 19.8 107
Divide Peak 8880 .0 .0 * 28.7 28.2 102
Elk River 8700 .0 .0 * 24.9 26.3 95
Little Snake River 8915 .2 .0 * 46.1 37.5 123
Old Battle 10000 27.7 11.5 241 47.3 44.6 106
Sage Creek Basin 7850 -M .0 * 19.4 18.5 105
Sandstone RS 8150 .0 .0 * 20.5 23.9 86
Whiskey Park 8950 .1 .0 * 37.7 35.9 105
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Basin Index (%) 243* 105
UPPER GREEN RIVER
Big Sandy Opening 9080 .0 .0 * 27.5 18.8 146
Blind Bull Sum 8650 -M 4.5 * 40.5 25.2 161
East Rim Divide 7930 .0 .0 * 24.3 15.7 155
Elkhart Park G.S. 9400 .0 .0 * 27.9 18.8 148
Gros Ventre Summit 8750 -M .0 * 27.8 17.9 155
Gunsight Pass 9820 5.4 .0 * 30.1 19.5 154
Kendall R.S. 7740 .0 .0 * 32.1 18.3 175
Loomis Park 8240 .2 .0 * 35.8 22.3 161
New Fork Lake 8340 .0 .0 * 23.4 15.4 152
Pocket Creek 9360 -M -M * -M -M *
Snider Basin 8060 .0 .0 * 30.2 18.1 167
Spring Creek Divide 9000 15.8 2.9 545 46.7 30.0 156
Triple Peak 8500 .1 .0 * 47.0 32.4 145
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Basin Index (%) 741* 156
LOWER GREEN RIVER
Blacks Fork Jct 8869 .1 -M * 19.9 -M *
Buck Pasture 9632 .0 -M * 28.6 -M *
EF Blacks Fork GS 9360 -M -M * 23.9 -M *
Hams Fork 7840 .0 .0 * 25.2 15.9 158
Hewinta 9500 .0 .0 * 22.4 19.3 116
Hickerson Park 9122 .0 .0 * 16.6 15.0 111
Hole-in-Rock 9168 .0 .0 * 17.4 14.6 119
Indian Creek 9425 13.9 3.0 463 47.4 28.8 165
Kelley R.S. 8180 .0 .0 * 35.7 23.6 151
Spirit Lk 10235 .0 -M * 22.6 -M *
Steel Creek Park 10158 .0 3.0 0 26.9 22.8 118
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Basin Index (%) 232* 137
UPPER BEAR RIVER
Bear River RS 8777 .0 -M * 22.4 -M *
Bug Lake 7987 .8 .0 * 39.2 25.3 155
Burts Miller Ranch 8000 .0 -M * 12.6 -M *
Chalk Creek #1 9171 .0 .0 * 42.8 33.0 130
Hayden Fork 9130 .0 .0 * 32.9 27.5 120
Kelley R.S. 8180 .0 .0 * 35.7 23.6 151
Lily Lake 9133 .0 .0 * 24.2 23.2 104
Monte Cristo 8932 .4 .0 * 46.5 33.8 138
Salt River Summit 7760 .0 .0 * 32.5 21.6 150
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Basin Index (%) * 135
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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.
