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 11 , 2019
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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 7060 .0 .0 * 27.0 26.8 101
Black Bear 8170 28.1 15.5 181 55.8 48.1 116
Blind Bull Sum 8650 15.2 3.7 411 25.8 25.3 102
Cottonwood Creek 7670 .0 .0 * 35.2 32.8 107
East Rim Divide 7930 .0 .0 * 18.1 15.8 115
Grand Targhee 9260 39.1 36.1 108 43.8 41.5 106
Granite Creek 6770 .0 .0 * 28.4 25.0 114
Grassy Lake 7265 -M .0 * -M 45.5 *
Gros Ventre Summit 8750 -M .0 * 18.6 18.0 103
Gunsight Pass 9820 7.4 .0 * 22.5 19.7 114
Lewis Lake Divide 7850 6.5 .0 * 47.2 44.2 107
Phillips Bench 8200 9.4 .9 1044* 40.2 35.7 113
Salt River Summit 7640 .0 .0 * 23.9 21.7 110
Snake River Station 6920 .0 .0 * 32.0 29.0 110
Spring Creek Divide 9000 11.5 1.9 605* 30.9 30.2 102
Thumb Divide 7980 .0 .0 * 25.1 25.0 100
Togwotee Pass 9580 17.4 16.6 105 32.6 32.2 101
Two Ocean Plateau 9240 19.5 19.7 99 32.8 35.9 91
Willow Creek 8080 2.2 .0 * 46.5 44.3 105
Younts Peak 8350 -M .0 * -M 21.9 *
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Basin Index (%) 166* 106
MADISON-GALLATIN
Black Bear 8170 28.1 15.5 181 55.8 48.1 116
Canyon 7870 .4 .0 * 22.3 22.0 101
Madison Plateau 7750 6.8 .0 * 38.0 34.6 110
West Yellowstone 6700 .0 .0 * 23.1 19.8 117
Whiskey Creek 6800 .0 .0 * 30.3 27.1 112
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Basin Index (%) 228* 112
YELLOWSTONE
Beartooth Lake 9360 19.8 11.6 171 28.5 26.5 108
Burnt Mtn 5880 .0 .0 * 27.5 22.6 122
Canyon 7870 .4 .0 * 22.3 22.0 101
Cole Creek 7850 12.5 1.4 893* 25.0 22.9 109
Evening Star 9200 19.4 12.2 159 40.2 36.9 109
Fisher Creek 9100 21.1 21.8 97 46.1 42.0 110
Northeast Entrance 7350 .0 .0 * 20.3 17.9 113
Parker Peak 9400 16.9 8.6 197 33.8 25.4 133
Sylvan Lake 8420 2.1 .4 525* 36.5 31.1 117
Thumb Divide 7980 .0 .0 * 25.1 25.0 100
Two Ocean Plateau 9240 19.5 19.7 99 32.8 35.9 91
White Mill 8700 14.0 11.0 127 28.7 32.1 89
Wolverine 7650 .0 .0 * 19.0 17.4 109
Younts Peak 8350 -M .0 * -M 21.9 *
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Basin Index (%) 145* 108
WIND RIVER
Burroughs Creek 8750 .0 -M * 22.8 -M *
Castle Creek 8400 .0 -M * 13.0 -M *
Cold Springs 9630 .0 .0 * 17.0 16.3 104
Deer Park 9700 4.0 .0 * 26.8 28.4 94
Hobbs Park 10100 13.1 .2 6550* 24.1 21.6 112
Kirwin 9550 .4 .0 * 21.0 18.2 115
Little Warm 9370 .0 .0 * 13.2 19.5 68
Owl Creek 8975 .0 .0 * 16.6 11.7 142
South Pass 9040 .5 .0 * 20.9 24.6 85
St. Lawrence Alt 8620 -M .0 * -M 15.5 *
Togwotee Pass 9580 17.4 16.6 105 32.6 32.2 101
Townsend Creek 8700 .0 .0 * 21.6 19.1 113
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Basin Index (%) 211* 101
BIGHORN BASIN
Bald Mtn. 9380 16.6 7.1 234 24.0 24.9 96
Bear Trap Meadow 8200 .0 .0 * 15.3 14.9 103
Bone Springs Div 9350 8.1 .8 1012* 20.5 23.7 86
Grave Springs 8550 .0 .0 * 17.5 17.1 102
Kirwin 9550 .4 .0 * 21.0 18.2 115
Marquette 8760 5.1 -M * 24.8 -M *
Middle Powder 7760 .0 .0 * 20.2 18.5 109
Owl Creek 8975 .0 .0 * 16.6 11.7 142
Powder River Pass 9480 .0 .0 * 16.2 20.2 80
Shell Creek 9580 8.5 2.2 386 18.8 21.3 88
Timber Creek 7950 .1 .0 * 19.5 14.8 132
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Basin Index (%) 334* 102
SHOSHONE RIVER
Blackwater 9780 22.2 14.5 153 36.2 28.8 126
Evening Star 9200 19.4 12.2 159 40.2 36.9 109
Marquette 8760 5.1 -M * 24.8 -M *
Sylvan Lake 8420 2.1 .4 525* 36.5 31.1 117
Sylvan Road 7120 .0 .0 * 21.9 22.6 97
Younts Peak 8350 -M .0 * -M 21.9 *
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Basin Index (%) 161* 113
POWDER RIVER
Bear Trap Meadow 8200 .0 .0 * 15.3 14.9 103
Cloud Peak Reservoir 9860 8.7 .1 8700* 22.2 22.6 98
Grave Springs 8550 .0 .0 * 17.5 17.1 102
Hansen Sawmill 8360 .1 .0 * 17.6 15.5 114
Middle Powder 7760 .0 .0 * 20.2 18.5 109
Powder River Pass 9480 .0 .0 * 16.2 20.2 80
Soldier Park 8720 .0 -M * 16.0 -M *
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Basin Index (%) 8800* 100
TONGUE RIVER
Big Goose 7990 .1 .0 * 21.8 19.3 113
Bone Springs Div 9350 8.1 .8 1012* 20.5 23.7 86
Burgess Junction 7880 .0 .0 * 20.4 19.2 106
Dome Lake 8880 2.3 .0 * 22.6 21.6 105
Little Goose 8870 2.6 -M * 16.1 -M *
Sucker Creek 8880 2.9 .0 * 22.5 22.9 98
Tie Creek 6870 .0 .0 * 24.4 20.1 121
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Basin Index (%) 1675* 104
BELLE FOURCHE
Blind Park 6890 .0 .0 * 12.4 19.9 62
Cole Canyon 5910 .0 .0 * 22.4 18.5 121
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Basin Index (%) * 91
CHEYENNE RIVER BASIN
Blind Park 6890 .0 .0 * 12.4 19.9 62
North Rapid Creek 6130 -M .0 * -M 17.6 *
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Basin Index (%) * 62
UPPER N. PLATTE
Arapaho Ridge 10960 18.7 1.6 1169* 35.9 30.5 118
Blackhall Mtn 9820 18.2 -M * 42.8 -M *
Columbine 9160 -M .0 * 36.3 32.2 113
Divide Peak 8880 .0 .0 * 31.7 28.2 112
Joe Wright 10120 13.9 7.2 193 38.1 35.4 108
Laprele Creek 8375 .0 .0 * 20.7 19.0 109
Med Bow 10500 34.1 -M * 45.5 -M *
Never Summer 10280 19.3 9.1 212 26.2 -M *
North French Creek 10130 20.4 13.3 153 39.0 36.3 107
Old Battle 10000 33.8 10.0 338 47.3 44.7 106
Rawah 9020 .1 .0 * 23.3 20.8 112
Sage Creek Basin 7850 -M .0 * 21.1 18.6 113
Sand Lake 10050 26.1 13.4 195 33.3 34.5 97
South Brush Creek 8440 .0 .0 * 18.1 22.0 82
Tower 10500 44.8 26.6 168 58.5 50.6 116
Webber Springs 9250 7.3 .0 * 40.2 33.9 119
Whiskey Park 8950 5.2 .0 * 41.1 35.9 114
Willow Creek Pass 9540 .4 .0 * 22.7 19.3 118
Zirkel 9340 .8 .0 * 45.3 35.5 128
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Basin Index (%) 235* 111
SWEETWATER
Deer Park 9700 4.0 .0 * 26.8 28.4 94
Larsen Creek 9000 .0 .0 * 18.6 -M *
South Pass 9040 .5 .0 * 20.9 24.6 85
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Basin Index (%) * 90
LOWER N. PLATTE
Casper Mtn. 7900 .0 .0 * 23.5 22.9 103
Laprele Creek 8375 .0 .0 * 20.7 19.0 109
Reno Hill 8400 .1 .0 * 27.5 23.7 116
Windy Peak 7900 .1 .0 * 17.6 17.2 102
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Basin Index (%) * 108
LARAMIE RIVER
Brooklyn Lake 10240 6.8 .0 * 34.6 29.3 118
Cinnabar Park 9574 5.1 .0 * 31.7 31.6 100
Crow Creek 8330 .0 .0 * 17.1 17.9 96
Deadman Hill 10220 7.4 .3 2467* 26.0 24.9 104
Rawah 9020 .1 .0 * 23.3 20.8 112
Roach 9700 .2 .0 * 30.7 26.7 115
Windy Peak 7900 .1 .0 * 17.6 17.2 102
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Basin Index (%) 6567* 107
S. PLATTE
Black Mountain 8920 .0 -M * 19.7 -M *
Crow Creek 8330 .0 .0 * 17.1 17.9 96
Deadman Hill 10220 7.4 .3 2467* 26.0 24.9 104
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Basin Index (%) 2467* 101
LITTLE SNAKE RIVER
Battle Mountain 7440 .0 .0 * 22.0 19.8 111
Divide Peak 8880 .0 .0 * 31.7 28.2 112
Elk River 8700 .0 .0 * 26.4 26.3 100
Little Snake River 8915 3.4 .0 * 47.1 37.5 126
Old Battle 10000 33.8 10.0 338 47.3 44.7 106
Sage Creek Basin 7850 -M .0 * 21.1 18.6 113
Sandstone RS 8150 .0 .0 * 23.9 24.0 100
Whiskey Park 8950 5.2 .0 * 41.1 35.9 114
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Basin Index (%) 424* 111
UPPER GREEN RIVER
Big Sandy Opening 9080 .0 .0 * 20.0 18.9 106
Blind Bull Sum 8650 15.2 3.7 411 25.8 25.3 102
East Rim Divide 7930 .0 .0 * 18.1 15.8 115
Elkhart Park G.S. 9400 .0 .0 * 20.9 18.9 111
Gros Ventre Summit 8750 -M .0 * 18.6 18.0 103
Gunsight Pass 9820 7.4 .0 * 22.5 19.7 114
Indian Creek 9425 11.1 2.1 529* 27.6 29.0 95
Kendall R.S. 7740 .0 .0 * 18.3 18.4 99
Loomis Park 8240 .6 .0 * 24.2 22.4 108
New Fork Lake 8340 .0 .0 * 17.0 15.5 110
Pocket Creek 9360 .0 -M * 19.8 -M *
Snider Basin 8060 .0 .0 * 19.2 18.2 105
Spring Creek Divide 9000 11.5 1.9 605* 30.9 30.2 102
Triple Peak 8500 -M .0 * -M 32.5 *
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Basin Index (%) 595* 105
LOWER GREEN RIVER
Blacks Fork Jct 8869 .0 -M * 19.2 -M *
Buck Pasture 9632 .0 -M * 28.6 -M *
EF Blacks Fork GS 9360 .0 -M * 19.6 -M *
Hams Fork 7840 .0 .0 * 20.3 16.0 127
Hewinta 9500 .0 .0 * 22.0 19.3 114
Hickerson Park 9122 .0 .0 * 17.8 15.0 119
Hole-in-Rock 9168 .0 .0 * 17.7 14.6 121
Indian Creek 9425 11.1 2.1 529* 27.6 29.0 95
Kelley R.S. 8180 .3 .0 * 24.5 23.7 103
Spirit Lk 10235 4.0 -M * 24.9 -M *
Steel Creek Park 10158 8.1 1.7 476* 27.6 22.8 121
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Basin Index (%) 513* 112
UPPER BEAR RIVER
Bear River RS 8777 .0 -M * 21.4 -M *
Bug Lake 7987 .1 .0 * 32.9 25.3 130
Burts Miller Ranch 8000 .0 -M * 11.7 -M *
Chalk Creek #1 9171 5.0 .0 * 38.8 33.1 117
Hayden Fork 9130 .0 .0 * 31.1 27.7 112
Kelley R.S. 8180 .3 .0 * 24.5 23.7 103
Lily Lake 9133 .0 .0 * 22.8 23.2 98
Monte Cristo 8932 13.7 .0 * 42.7 33.9 126
Salt River Summit 7640 .0 .0 * 23.9 21.7 110
Spring Creek Divide 9000 11.5 1.9 605* 30.9 30.2 102
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Basin Index (%) 1611* 113
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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.