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 8 , 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 * 26.7 26.4 101
Black Bear 8170 28.7 17.6 163 55.2 47.5 116
Blind Bull Sum 8650 18.0 6.0 300 25.8 25.0 103
Cottonwood Creek 7670 .0 .0 * 35.0 32.3 108
East Rim Divide 7930 .0 .0 * 18.0 15.5 116
Grand Targhee 9260 39.5 37.1 106 43.0 40.8 105
Granite Creek 6770 .0 .0 * 27.9 24.8 112
Grassy Lake 7265 -M .0 * -M 44.9 *
Gros Ventre Summit 8750 -M .0 * 18.0 17.6 102
Gunsight Pass 9820 8.5 .0 * 22.4 19.4 115
Lewis Lake Divide 7850 7.0 3.4 206 46.5 43.7 106
Phillips Bench 8200 10.1 3.6 281 39.8 35.2 113
Salt River Summit 7640 .0 .0 * 23.7 21.4 111
Snake River Station 6920 .0 .0 * 31.4 28.7 109
Spring Creek Divide 9000 13.3 4.9 271 30.7 29.8 103
Thumb Divide 7980 .0 .0 * 24.9 24.7 101
Togwotee Pass 9580 17.8 17.5 102 32.3 31.9 101
Two Ocean Plateau 9240 20.2 21.2 95 32.7 35.4 92
Willow Creek 8080 4.5 .0 * 46.1 43.8 105
Younts Peak 8350 -M .6 * -M 21.5 *
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Basin Index (%) 151* 107
MADISON-GALLATIN
Black Bear 8170 28.7 17.6 163 55.2 47.5 116
Canyon 7870 .6 .0 * 21.5 21.7 99
Madison Plateau 7750 8.4 1.0 840* 37.6 34.2 110
West Yellowstone 6700 .1 .0 * 23.0 19.5 118
Whiskey Creek 6800 .0 .0 * 28.7 26.7 107
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Basin Index (%) 203* 111
YELLOWSTONE
Beartooth Lake 9360 19.9 13.1 152 28.0 26.0 108
Burnt Mtn 5880 .0 .0 * 26.7 22.1 121
Canyon 7870 .6 .0 * 21.5 21.7 99
Cole Creek 7850 12.5 2.8 446 24.0 22.4 107
Evening Star 9200 20.1 13.6 148 39.6 36.3 109
Fisher Creek 9100 29.6 23.8 124 45.6 41.4 110
Northeast Entrance 7350 .1 .0 * 20.1 17.5 115
Parker Peak 9400 16.7 9.4 178 32.8 24.7 133
Sylvan Lake 8420 2.8 .9 311* 35.8 30.5 117
Thumb Divide 7980 .0 .0 * 24.9 24.7 101
Two Ocean Plateau 9240 20.2 21.2 95 32.7 35.4 92
White Mill 8700 14.3 12.5 114 28.0 31.6 89
Wolverine 7650 .0 .0 * 18.8 17.1 110
Younts Peak 8350 -M .6 * -M 21.5 *
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Basin Index (%) 141 108
WIND RIVER
Burroughs Creek 8750 .0 -M * 22.4 -M *
Castle Creek 8400 .0 -M * 13.0 -M *
Cold Springs 9630 .0 .0 * 16.6 16.0 104
Deer Park 9700 6.8 .0 * 26.7 28.0 95
Hobbs Park 10100 15.1 1.6 944 23.7 21.3 111
Kirwin 9550 2.9 .2 1450* 20.6 17.8 116
Little Warm 9370 .0 .0 * 13.0 19.1 68
Owl Creek 8975 .0 .0 * 16.5 11.4 145
South Pass 9040 1.7 .0 * 20.7 24.3 85
St. Lawrence Alt 8620 -M .0 * -M 15.2 *
Togwotee Pass 9580 17.8 17.5 102 32.3 31.9 101
Townsend Creek 8700 .0 .0 * 22.2 18.9 117
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Basin Index (%) 230* 102
BIGHORN BASIN
Bald Mtn. 9380 19.5 9.3 210 23.5 24.4 96
Bear Trap Meadow 8200 .0 .0 * 14.8 14.6 101
Bone Springs Div 9350 8.3 2.8 296 20.1 23.2 87
Grave Springs 8550 .0 .0 * 16.9 16.9 100
Kirwin 9550 2.9 .2 1450* 20.6 17.8 116
Marquette 8760 6.1 -M * 24.6 -M *
Middle Powder 7760 .0 .0 * 19.3 18.1 107
Owl Creek 8975 .0 .0 * 16.5 11.4 145
Powder River Pass 9480 .0 .0 * 15.7 19.8 79
Shell Creek 9580 8.5 4.4 193 18.0 20.9 86
Timber Creek 7950 .2 .0 * 19.4 14.5 134
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Basin Index (%) 236* 102
SHOSHONE RIVER
Blackwater 9780 22.4 15.6 144 35.7 28.3 126
Evening Star 9200 20.1 13.6 148 39.6 36.3 109
Marquette 8760 6.1 -M * 24.6 -M *
Sylvan Lake 8420 2.8 .9 311* 35.8 30.5 117
Sylvan Road 7120 .1 .0 * 21.0 22.1 95
Younts Peak 8350 -M .6 * -M 21.5 *
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Basin Index (%) 151* 113
POWDER RIVER
Bear Trap Meadow 8200 .0 .0 * 14.8 14.6 101
Cloud Peak Reservoir 9860 9.5 .9 1056* 22.1 22.3 99
Grave Springs 8550 .0 .0 * 16.9 16.9 100
Hansen Sawmill 8360 .0 .0 * 17.5 15.1 116
Middle Powder 7760 .0 .0 * 19.3 18.1 107
Powder River Pass 9480 .0 .0 * 15.7 19.8 79
Soldier Park 8720 .0 -M * 15.7 -M *
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Basin Index (%) 1056* 100
TONGUE RIVER
Big Goose 7990 .2 .0 * 21.4 19.0 113
Bone Springs Div 9350 8.3 2.8 296 20.1 23.2 87
Burgess Junction 7880 .0 .0 * 19.2 18.9 102
Dome Lake 8880 3.5 .0 * 21.8 21.2 103
Little Goose 8870 3.0 -M * 15.8 -M *
Sucker Creek 8880 3.7 .0 * 21.9 22.4 98
Tie Creek 6870 .0 .0 * 24.0 19.7 122
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Basin Index (%) 561* 103
BELLE FOURCHE
Blind Park 6890 .0 .0 * 12.4 19.5 64
Cole Canyon 5910 .0 .0 * 22.2 18.2 122
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Basin Index (%) * 92
CHEYENNE RIVER BASIN
Blind Park 6890 .0 .0 * 12.4 19.5 64
North Rapid Creek 6130 .0 .0 * 12.8 17.1 75
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Basin Index (%) * 69
UPPER N. PLATTE
Arapaho Ridge 10960 21.8 3.0 727 35.9 30.1 119
Blackhall Mtn 9820 22.3 -M * 42.8 -M *
Columbine 9160 -M .0 * 36.4 32.1 113
Divide Peak 8880 .0 .0 * 31.7 27.9 114
Joe Wright 10120 16.9 9.7 174 38.3 35.2 109
Laprele Creek 8375 .0 .0 * 21.0 18.6 113
Med Bow 10500 37.0 -M * 45.5 -M *
Never Summer 10280 -M 11.6 * 26.2 -M *
North French Creek 10130 23.3 15.7 148 39.0 35.8 109
Old Battle 10000 36.2 14.6 248 47.4 44.3 107
Rawah 9020 .1 .0 * 23.4 20.5 114
Sage Creek Basin 7850 -M .0 * 21.1 18.4 115
Sand Lake 10050 27.8 16.4 170 33.3 34.1 98
South Brush Creek 8440 .0 .0 * 18.5 21.6 86
Tower 10500 48.6 30.8 158 58.5 50.3 116
Webber Springs 9250 10.6 .0 * 40.3 33.7 120
Whiskey Park 8950 8.5 .0 * 41.1 35.6 115
Willow Creek Pass 9540 3.3 .0 * 22.8 19.2 119
Zirkel 9340 5.3 .0 * 46.3 35.1 132
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Basin Index (%) 224* 113
SWEETWATER
Deer Park 9700 6.8 .0 * 26.7 28.0 95
Larsen Creek 9000 .0 .0 * 18.7 -M *
South Pass 9040 1.7 .0 * 20.7 24.3 85
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Basin Index (%) * 91
LOWER N. PLATTE
Casper Mtn. 7900 .0 .0 * 23.7 22.6 105
Laprele Creek 8375 .0 .0 * 21.0 18.6 113
Reno Hill 8400 .7 .0 * 27.8 23.4 119
Windy Peak 7900 .0 .0 * 17.7 16.8 105
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Basin Index (%) * 111
LARAMIE RIVER
Brooklyn Lake 10240 10.4 .7 1486* 34.5 28.9 119
Cinnabar Park 9574 8.5 .0 * 31.7 31.3 101
Crow Creek 8330 .1 .0 * 17.1 17.6 97
Deadman Hill 10220 10.0 1.3 769* 26.0 24.7 105
Rawah 9020 .1 .0 * 23.4 20.5 114
Roach 9700 1.8 .0 * 30.8 26.5 116
Windy Peak 7900 .0 .0 * 17.7 16.8 105
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Basin Index (%) 1545* 109
S. PLATTE
Black Mountain 8920 .0 -M * 19.7 -M *
Crow Creek 8330 .1 .0 * 17.1 17.6 97
Deadman Hill 10220 10.0 1.3 769* 26.0 24.7 105
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Basin Index (%) 777* 102
LITTLE SNAKE RIVER
Battle Mountain 7440 .0 .0 * 21.9 19.6 112
Divide Peak 8880 .0 .0 * 31.7 27.9 114
Elk River 8700 .0 .0 * 26.4 26.1 101
Little Snake River 8915 7.3 .3 2433* 47.1 37.1 127
Old Battle 10000 36.2 14.6 248 47.4 44.3 107
Sage Creek Basin 7850 -M .0 * 21.1 18.4 115
Sandstone RS 8150 -M .0 * 24.0 23.8 101
Whiskey Park 8950 8.5 .0 * 41.1 35.6 115
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Basin Index (%) 349* 112
UPPER GREEN RIVER
Big Sandy Opening 9080 .0 .0 * 20.0 18.6 108
Blind Bull Sum 8650 18.0 6.0 300 25.8 25.0 103
East Rim Divide 7930 .0 .0 * 18.0 15.5 116
Elkhart Park G.S. 9400 .4 .0 * 20.9 18.6 112
Gros Ventre Summit 8750 -M .0 * 18.0 17.6 102
Gunsight Pass 9820 8.5 .0 * 22.4 19.4 115
Indian Creek 9425 12.7 4.8 265 26.9 28.7 94
Kendall R.S. 7740 .0 .0 * 17.7 18.1 98
Loomis Park 8240 .7 .0 * 24.1 22.1 109
New Fork Lake 8340 .0 .0 * 17.0 15.2 112
Pocket Creek 9360 .4 -M * 19.9 -M *
Snider Basin 8060 .0 .0 * 18.8 18.0 104
Spring Creek Divide 9000 13.3 4.9 271 30.7 29.8 103
Triple Peak 8500 -M .0 * -M 32.2 *
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Basin Index (%) 341* 106
LOWER GREEN RIVER
Blacks Fork Jct 8869 .1 -M * 19.2 -M *
Buck Pasture 9632 .0 -M * 28.5 -M *
EF Blacks Fork GS 9360 .0 -M * 19.6 -M *
Hams Fork 7840 .0 .0 * 20.2 15.8 128
Hewinta 9500 .0 .0 * 22.0 19.0 116
Hickerson Park 9122 .0 .0 * 17.8 14.8 120
Hole-in-Rock 9168 .1 .0 * 17.7 14.4 123
Indian Creek 9425 12.7 4.8 265 26.9 28.7 94
Kelley R.S. 8180 .2 .0 * 24.2 23.4 103
Spirit Lk 10235 7.3 -M * 25.0 -M *
Steel Creek Park 10158 11.0 5.0 220 27.6 22.5 123
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Basin Index (%) 245* 113
UPPER BEAR RIVER
Bear River RS 8777 .0 -M * 21.3 -M *
Bug Lake 7987 .1 .0 * 32.8 25.1 131
Burts Miller Ranch 8000 .0 -M * 11.7 -M *
Chalk Creek #1 9171 7.6 .9 844* 38.8 32.7 119
Hayden Fork 9130 .0 .0 * 31.1 27.3 114
Kelley R.S. 8180 .2 .0 * 24.2 23.4 103
Lily Lake 9133 .0 .0 * 22.8 22.9 100
Monte Cristo 8932 16.1 .0 * 42.5 33.6 126
Salt River Summit 7640 .0 .0 * 23.7 21.4 111
Spring Creek Divide 9000 13.3 4.9 271 30.7 29.8 103
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Basin Index (%) 643* 114
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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.
