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 THURSDAY: JUNE 8 , 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 * 42.8 26.4 162
Black Bear 8170 25.3 17.6 144 62.0 47.5 131
Blind Bull Sum 8650 -M 6.0 * 40.5 25.0 162
Cottonwood Creek 7670 .0 .0 * 46.9 32.3 145
East Rim Divide 7930 .1 .0 * 24.3 15.5 157
Grand Targhee 9260 35.5 37.1 96 53.6 40.8 131
Granite Creek 6770 .0 .0 * 41.3 24.8 167
Grassy Lake 7265 1.3 .0 * 63.1 44.9 141
Gros Ventre Summit 8750 -M .0 * -M 17.6 *
Gunsight Pass 9820 7.7 .0 * 30.1 19.4 155
Lewis Lake Divide 7850 11.7 3.4 344 60.7 43.7 139
Phillips Bench 8200 11.4 3.6 317 51.7 35.2 147
Salt River Summit 7760 .0 .0 * 32.8 21.4 153
Snake River Station 6920 .0 .0 * 39.9 28.7 139
Spring Creek Divide 9000 18.8 4.9 384 46.6 29.8 156
Thumb Divide 7980 .5 .0 * 31.5 24.7 128
Togwotee Pass 9580 20.6 17.5 118 45.0 31.9 141
Two Ocean Plateau 9240 -M 21.2 * -M 35.4 *
Willow Creek 8380 -M .0 * 60.3 43.8 138
Younts Peak 8350 .1 .6 17* 36.1 21.5 168
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Basin Index (%) 157* 145
MADISON-GALLATIN
Black Bear 8170 25.3 17.6 144 62.0 47.5 131
Canyon 7870 .0 .0 * 30.6 21.7 141
Madison Plateau 7750 .0 1.0 0* 41.6 34.2 122
West Yellowstone 6700 .0 .0 * 26.8 19.5 137
Whiskey Creek 6800 .1 .0 * 32.2 26.7 121
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Basin Index (%) 137* 129
YELLOWSTONE
Beartooth Lake 9360 25.3 13.1 193 33.5 26.0 129
Burnt Mtn 5880 .0 .0 * 24.2 22.1 110
Canyon 7870 .0 .0 * 30.6 21.7 141
Cole Creek 7850 1.2 2.8 43 20.3 22.4 91
Evening Star 9200 21.3 13.6 157 51.4 36.3 142
Fisher Creek 9100 27.4 23.8 115 53.9 41.4 130
Northeast Entrance 7350 .0 .0 * 24.0 17.5 137
Parker Peak 9400 16.5 9.4 176 41.9 24.7 170
Sylvan Lake 8420 .0 .9 0* 43.7 30.5 143
Thumb Divide 7980 .5 .0 * 31.5 24.7 128
Two Ocean Plateau 9240 -M 21.2 * -M 35.4 *
White Mill 8700 15.0 12.5 120 40.6 31.6 128
Wolverine 7650 -M .0 * 24.9 17.1 146
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Basin Index (%) 141* 133
WIND RIVER
Burroughs Creek 8750 .0 -M * 32.0 -M *
Castle Creek 8400 .0 -M * 19.5 -M *
Cold Springs 9630 .0 .0 * 25.5 16.0 159
Deer Park 9700 23.1 .0 * 47.8 28.0 171
Hobbs Park 10100 20.4 1.6 1275 38.8 21.3 182
Kirwin 9550 2.7 .2 1350* 31.4 17.8 176
Little Warm 9370 .0 .0 * 28.4 19.1 149
Owl Creek 8975 .0 .0 * 18.1 11.4 159
South Pass 9040 13.6 .0 * 38.3 24.3 158
St. Lawrence Alt 8620 .0 .0 * 23.5 15.2 155
Togwotee Pass 9580 20.6 17.5 118 45.0 31.9 141
Townsend Creek 8700 .0 .0 * 33.4 18.9 177
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Basin Index (%) 417* 162
BIGHORN BASIN
Bald Mtn. 9380 9.5 9.3 102 24.0 24.4 98
Bear Trap Meadow 8200 .0 .0 * 17.8 14.6 122
Bone Springs Div 9350 3.4 2.8 121 24.2 23.2 104
Grave Springs 8550 .0 .0 * 16.3 16.9 96
Kirwin 9550 2.7 .2 1350* 31.4 17.8 176
Marquette 8760 .0 -M * 27.2 -M *
Middle Powder 7760 .0 .0 * 17.0 18.1 94
Owl Creek 8975 .0 .0 * 18.1 11.4 159
Powder River Pass 9480 .0 .0 * 20.4 19.8 103
Shell Creek 9580 1.7 4.4 39 20.6 20.9 99
Timber Creek 7950 .0 .0 * 19.1 14.5 132
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Basin Index (%) 104* 115
SHOSHONE RIVER
Blackwater 9780 29.3 15.6 188 48.6 28.3 172
Evening Star 9200 21.3 13.6 157 51.4 36.3 142
Marquette 8760 .0 -M * 27.2 -M *
Sylvan Road 7120 .0 .0 * 33.3 22.1 151
Younts Peak 8350 .1 .6 17* 36.1 21.5 168
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Basin Index (%) 170* 157
POWDER RIVER
Bear Trap Meadow 8200 .0 .0 * 17.8 14.6 122
Cloud Peak Reservoir 9860 6.9 .9 767* 29.3 22.3 131
Grave Springs 8550 .0 .0 * 16.3 16.9 96
Hansen Sawmill 8360 .0 .0 * 21.5 15.1 142
Middle Powder 7760 .0 .0 * 17.0 18.1 94
Powder River Pass 9480 .0 .0 * 20.4 19.8 103
Soldier Park 8720 .0 -M * 23.3 -M *
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Basin Index (%) 767* 115
TONGUE RIVER
Big Goose 7990 .0 .0 * 22.5 19.0 118
Bone Springs Div 9350 3.4 2.8 121 24.2 23.2 104
Burgess Junction 7880 .0 .0 * 20.7 18.9 110
Dome Lake 8880 .0 .0 * 25.8 21.2 122
Little Goose 8870 .0 -M * 26.4 -M *
Sucker Creek 8880 .0 .0 * 23.2 22.4 104
Tie Creek 6870 .0 .0 * 25.3 19.7 128
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Basin Index (%) 121* 114
BELLE FOURCHE
Cole Canyon 5910 .0 .0 * 14.4 18.2 79
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Basin Index (%) * 79
CHEYENNE RIVER BASIN
Blind Park 6890 .0 .0 * 15.4 19.5 79
North Rapid Creek 6130 .0 .0 * 15.1 17.1 88
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Basin Index (%) * 83
UPPER N. PLATTE
Arapaho Ridge 10960 12.4 3.0 413 33.6 30.1 112
Blackhall Mtn 9820 16.9 -M * 45.8 -M *
Columbine 9160 .9 .0 * -M 32.1 *
Divide Peak 8880 .0 .0 * 28.7 27.9 103
Joe Wright 10120 9.3 9.7 96 38.3 35.2 109
Laprele Creek 8375 .4 .0 * 18.8 18.6 101
Med Bow 10500 27.4 -M * 45.1 -M *
North French Creek 10130 12.3 15.7 78 37.2 35.8 104
Never Summer 10280 16.5 11.6 142 26.7 -M *
Old Battle 10000 31.5 14.6 216 47.2 44.3 107
Rawah 9020 .1 .0 * 23.5 20.5 115
Sage Creek Basin 7850 -M .0 * 19.5 18.4 106
Sand Lake 10050 27.4 16.4 167 35.8 34.1 105
South Brush Creek 8440 .0 .0 * 18.3 21.6 85
Tower 10500 29.9 30.8 97 56.5 50.3 112
Webber Springs 9250 .1 .0 * 40.7 33.7 121
Willow Creek Pass 9540 .4 .0 * 24.0 19.2 125
Zirkel 9340 .0 .0 * 51.0 35.1 145
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Basin Index (%) 139* 111
SWEETWATER
Deer Park 9700 23.1 .0 * 47.8 28.0 171
Larsen Creek 9000 .0 .0 * 28.4 -M *
South Pass 9040 13.6 .0 * 38.3 24.3 158
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Basin Index (%) * 165
LOWER N. PLATTE
Casper Mtn. 7900 .4 .0 * 23.5 22.6 104
Laprele Creek 8375 .4 .0 * 18.8 18.6 101
Reno Hill 8400 .0 .0 * 23.4 23.4 100
Windy Peak 7900 .1 .0 * 19.1 16.8 114
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Basin Index (%) * 104
LARAMIE RIVER
Brooklyn Lake 10240 .2 .7 29* 30.5 28.9 106
Cinnabar Park 9574 .0 .0 * 30.3 31.3 97
Crow Creek 8330 .0 .0 * 16.5 17.6 94
Deadman Hill 10220 9.6 1.3 738* 30.4 24.7 123
Rawah 9020 .1 .0 * 23.5 20.5 115
Roach 9700 .1 .0 * 29.1 26.5 110
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Basin Index (%) 500* 107
S. PLATTE
Black Mountain 8920 -M -M * 21.3 -M *
Crow Creek 8330 .0 .0 * 16.5 17.6 94
Deadman Hill 10220 9.6 1.3 738* 30.4 24.7 123
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Basin Index (%) 738* 111
LITTLE SNAKE RIVER
Battle Mountain 7440 .0 .0 * 21.1 19.6 108
Divide Peak 8880 .0 .0 * 28.7 27.9 103
Elk River 8700 .0 .0 * 25.2 26.1 97
Little Snake River 8915 .1 .3 33* 46.1 37.1 124
Old Battle 10000 31.5 14.6 216 47.2 44.3 107
Sage Creek Basin 7850 -M .0 * 19.5 18.4 106
Sandstone RS 8150 .0 .0 * 20.6 23.8 87
Whiskey Park 8950 .5 .0 * 37.7 35.6 106
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Basin Index (%) 215* 106
UPPER GREEN RIVER
Big Sandy Opening 9080 .0 .0 * 27.6 18.6 148
Blind Bull Sum 8650 -M 6.0 * 40.5 25.0 162
East Rim Divide 7930 .1 .0 * 24.3 15.5 157
Elkhart Park G.S. 9400 .0 .0 * 27.7 18.6 149
Gros Ventre Summit 8750 -M .0 * -M 17.6 *
Gunsight Pass 9820 7.7 .0 * 30.1 19.4 155
Kendall R.S. 7740 .0 .0 * 32.1 18.1 177
Loomis Park 8240 .2 .0 * 35.7 22.1 162
New Fork Lake 8340 .0 .0 * 23.5 15.2 155
Pocket Creek 9360 -M -M * -M -M *
Snider Basin 8060 .0 .0 * 30.2 18.0 168
Spring Creek Divide 9000 18.8 4.9 384 46.6 29.8 156
Triple Peak 8500 2.6 .0 * 46.5 32.2 144
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Basin Index (%) 600* 157
LOWER GREEN RIVER
Blacks Fork Jct 8869 .1 -M * 19.9 -M *
Buck Pasture 9632 .0 -M * 28.7 -M *
EF Blacks Fork GS 9360 -M -M * 24.1 -M *
Hams Fork 7840 .2 .0 * 25.2 15.8 159
Hewinta 9500 .0 .0 * 22.4 19.0 118
Hickerson Park 9122 .0 .0 * 16.6 14.8 112
Hole-in-Rock 9168 .0 .0 * 17.4 14.4 121
Indian Creek 9425 16.8 4.8 350 47.6 28.7 166
Kelley R.S. 8180 .0 .0 * 35.7 23.4 153
Spirit Lk 10235 .0 -M * 22.6 -M *
Steel Creek Park 10158 1.7 5.0 34 26.9 22.5 120
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Basin Index (%) 191* 138
UPPER BEAR RIVER
Bear River RS 8777 .0 -M * 22.5 -M *
Bug Lake 7987 .8 .0 * 39.2 25.1 156
Burts Miller Ranch 8000 .0 -M * 12.6 -M *
Chalk Creek #1 9171 .0 .9 0* 42.8 32.7 131
Hayden Fork 9130 .0 .0 * 32.8 27.3 120
Kelley R.S. 8180 .0 .0 * 35.7 23.4 153
Lily Lake 9133 .0 .0 * 24.2 22.9 106
Monte Cristo 8932 3.2 .0 * 46.2 33.6 138
Salt River Summit 7760 .0 .0 * 32.8 21.4 153
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Basin Index (%) 444* 136
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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.
