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 MONDAY: JUNE 10 , 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 * 26.9 26.7 101
Black Bear 8170 28.8 16.3 177 55.7 47.9 116
Blind Bull Sum 8650 16.4 4.5 364 25.8 25.2 102
Cottonwood Creek 7670 .0 .0 * 35.1 32.5 108
East Rim Divide 7930 .0 .0 * 18.1 15.7 115
Grand Targhee 9260 39.5 36.5 108 43.8 41.2 106
Granite Creek 6770 .0 .0 * 28.1 24.9 113
Grassy Lake 7265 -M .0 * -M 45.3 *
Gros Ventre Summit 8750 -M .0 * 18.5 17.9 103
Gunsight Pass 9820 8.4 .0 * 22.6 19.5 116
Lewis Lake Divide 7850 7.1 .7 1014* 47.2 44.0 107
Phillips Bench 8200 9.9 2.0 495* 40.2 35.5 113
Salt River Summit 7640 .0 .0 * 23.9 21.6 111
Snake River Station 6920 .0 .0 * 31.9 28.9 110
Spring Creek Divide 9000 12.6 2.9 434 30.9 30.0 103
Thumb Divide 7980 .0 .0 * 25.1 24.9 101
Togwotee Pass 9580 18.1 17.0 106 32.6 32.1 102
Two Ocean Plateau 9240 20.2 20.3 100 32.8 35.7 92
Willow Creek 8080 3.8 .0 * 46.4 44.0 105
Younts Peak 8350 -M .0 * -M 21.8 *
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Basin Index (%) 164* 107
MADISON-GALLATIN
Black Bear 8170 28.8 16.3 177 55.7 47.9 116
Canyon 7870 .4 .0 * 22.1 22.0 100
Madison Plateau 7750 8.1 .0 * 38.0 34.4 110
West Yellowstone 6700 .0 .0 * 23.1 19.7 117
Whiskey Creek 6800 .0 .0 * 30.1 27.0 111
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Basin Index (%) 229* 112
YELLOWSTONE
Beartooth Lake 9360 20.1 12.1 166 28.4 26.3 108
Burnt Mtn 5880 .0 .0 * 27.5 22.4 123
Canyon 7870 .4 .0 * 22.1 22.0 100
Cole Creek 7850 13.0 1.7 765* 25.0 22.8 110
Evening Star 9200 20.1 12.7 158 40.2 36.7 110
Fisher Creek 9100 -M 22.4 * 46.1 41.8 110
Northeast Entrance 7350 .1 .0 * 20.3 17.8 114
Parker Peak 9400 17.0 8.9 191 33.7 25.2 134
Sylvan Lake 8420 2.9 .4 725* 36.5 30.9 118
Thumb Divide 7980 .0 .0 * 25.1 24.9 101
Two Ocean Plateau 9240 20.2 20.3 100 32.8 35.7 92
White Mill 8700 14.4 11.5 125 28.6 31.9 90
Wolverine 7650 .0 .0 * 18.9 17.3 109
Younts Peak 8350 -M .0 * -M 21.8 *
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Basin Index (%) 160* 108
WIND RIVER
Burroughs Creek 8750 .0 -M * 22.4 -M *
Castle Creek 8400 .0 -M * 12.8 -M *
Cold Springs 9630 .0 .0 * 16.7 16.3 102
Deer Park 9700 5.5 .0 * 26.7 28.2 95
Hobbs Park 10100 14.2 .6 2367* 23.9 21.5 111
Kirwin 9550 .9 .0 * 20.7 18.1 114
Little Warm 9370 .0 .0 * 13.1 19.3 68
Owl Creek 8975 .0 .0 * 16.5 11.6 142
South Pass 9040 .8 .0 * 20.8 24.5 85
St. Lawrence Alt 8620 -M .0 * -M 15.4 *
Togwotee Pass 9580 18.1 17.0 106 32.6 32.1 102
Townsend Creek 8700 .0 .0 * 21.6 19.0 114
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Basin Index (%) 224* 101
BIGHORN BASIN
Bald Mtn. 9380 17.4 7.9 220 23.9 24.7 97
Bear Trap Meadow 8200 .0 .0 * 14.9 14.8 101
Bone Springs Div 9350 8.6 1.7 506 20.3 23.6 86
Grave Springs 8550 .0 .0 * 17.3 17.0 102
Kirwin 9550 .9 .0 * 20.7 18.1 114
Marquette 8760 5.5 -M * 24.7 -M *
Middle Powder 7760 .0 .0 * 20.0 18.4 109
Owl Creek 8975 .0 .0 * 16.5 11.6 142
Powder River Pass 9480 .0 .0 * 15.9 20.0 80
Shell Creek 9580 8.8 2.9 303 18.6 21.2 88
Timber Creek 7950 .1 .0 * 19.5 14.7 133
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Basin Index (%) 286* 102
SHOSHONE RIVER
Blackwater 9780 22.9 14.9 154 36.0 28.6 126
Evening Star 9200 20.1 12.7 158 40.2 36.7 110
Marquette 8760 5.5 -M * 24.7 -M *
Sylvan Lake 8420 2.9 .4 725* 36.5 30.9 118
Sylvan Road 7120 .0 .0 * 21.8 22.4 97
Younts Peak 8350 -M .0 * -M 21.8 *
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Basin Index (%) 164* 113
POWDER RIVER
Bear Trap Meadow 8200 .0 .0 * 14.9 14.8 101
Cloud Peak Reservoir 9860 9.1 .7 1300* 22.1 22.6 98
Grave Springs 8550 .0 .0 * 17.3 17.0 102
Hansen Sawmill 8360 .0 .0 * 17.5 15.4 114
Middle Powder 7760 .0 .0 * 20.0 18.4 109
Powder River Pass 9480 .0 .0 * 15.9 20.0 80
Soldier Park 8720 .0 -M * 15.9 -M *
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Basin Index (%) 1300* 100
TONGUE RIVER
Big Goose 7990 .1 .0 * 21.8 19.3 113
Bone Springs Div 9350 8.6 1.7 506 20.3 23.6 86
Burgess Junction 7880 .0 .0 * 19.6 19.1 103
Dome Lake 8880 2.8 .0 * 22.4 21.5 104
Little Goose 8870 3.0 -M * 16.1 -M *
Sucker Creek 8880 3.7 .0 * 22.1 22.8 97
Tie Creek 6870 .0 .0 * 24.3 20.0 122
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Basin Index (%) 894* 103
BELLE FOURCHE
Blind Park 6890 .0 .0 * 12.4 19.7 63
Cole Canyon 5910 .0 .0 * 22.4 18.4 122
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Basin Index (%) * 91
CHEYENNE RIVER BASIN
Blind Park 6890 .0 .0 * 12.4 19.7 63
North Rapid Creek 6130 -M .0 * -M 17.3 *
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Basin Index (%) * 63
UPPER N. PLATTE
Arapaho Ridge 10960 19.9 2.0 995* 35.7 30.2 118
Blackhall Mtn 9820 19.8 -M * 42.7 -M *
Columbine 9160 -M .0 * 36.2 32.2 112
Divide Peak 8880 .0 .0 * 31.5 28.2 112
Joe Wright 10120 15.7 8.0 196 38.1 35.4 108
Laprele Creek 8375 .0 .0 * 20.6 18.9 109
Med Bow 10500 36.1 -M * 45.5 -M *
Never Summer 10280 21.9 10.0 219 26.2 -M *
North French Creek 10130 22.5 14.2 158 39.0 36.2 108
Old Battle 10000 34.5 11.5 300 47.3 44.6 106
Rawah 9020 .1 .0 * 23.2 20.7 112
Sage Creek Basin 7850 -M .0 * 21.0 18.5 114
Sand Lake 10050 27.7 14.4 192 33.3 34.5 97
South Brush Creek 8440 .0 .0 * 17.9 21.9 82
Tower 10500 45.8 28.0 164 58.4 50.5 116
Webber Springs 9250 9.0 .0 * 40.2 33.9 119
Whiskey Park 8950 7.0 .0 * 41.1 35.9 114
Willow Creek Pass 9540 .7 .0 * 22.7 19.3 118
Zirkel 9340 2.3 .0 * 46.1 35.3 131
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Basin Index (%) 235* 111
SWEETWATER
Deer Park 9700 5.5 .0 * 26.7 28.2 95
Larsen Creek 9000 .0 .0 * 18.5 -M *
South Pass 9040 .8 .0 * 20.8 24.5 85
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Basin Index (%) * 90
LOWER N. PLATTE
Casper Mtn. 7900 .0 .0 * 23.2 22.9 101
Laprele Creek 8375 .0 .0 * 20.6 18.9 109
Reno Hill 8400 .1 .0 * 27.3 23.7 115
Windy Peak 7900 .1 .0 * 17.3 17.1 101
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Basin Index (%) * 107
LARAMIE RIVER
Brooklyn Lake 10240 8.1 .4 2025* 34.5 29.2 118
Cinnabar Park 9574 6.4 .0 * 31.7 31.5 101
Crow Creek 8330 .0 .0 * 17.1 17.7 97
Deadman Hill 10220 8.8 .6 1467* 26.0 24.9 104
Rawah 9020 .1 .0 * 23.2 20.7 112
Roach 9700 .5 .0 * 30.6 26.7 115
Windy Peak 7900 .1 .0 * 17.3 17.1 101
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Basin Index (%) 2400* 108
S. PLATTE
Black Mountain 8920 -M -M * 19.7 -M *
Crow Creek 8330 .0 .0 * 17.1 17.7 97
Deadman Hill 10220 8.8 .6 1467* 26.0 24.9 104
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Basin Index (%) 1467* 101
LITTLE SNAKE RIVER
Battle Mountain 7440 .0 .0 * 22.1 19.8 112
Divide Peak 8880 .0 .0 * 31.5 28.2 112
Elk River 8700 .0 .0 * 26.1 26.3 99
Little Snake River 8915 5.2 .0 * 47.0 37.5 125
Old Battle 10000 34.5 11.5 300 47.3 44.6 106
Sage Creek Basin 7850 -M .0 * 21.0 18.5 114
Sandstone RS 8150 .0 .0 * 23.9 23.9 100
Whiskey Park 8950 7.0 .0 * 41.1 35.9 114
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Basin Index (%) 406* 111
UPPER GREEN RIVER
Big Sandy Opening 9080 .0 .0 * 20.1 18.8 107
Blind Bull Sum 8650 16.4 4.5 364 25.8 25.2 102
East Rim Divide 7930 .0 .0 * 18.1 15.7 115
Elkhart Park G.S. 9400 .0 .0 * 20.9 18.8 111
Gros Ventre Summit 8750 -M .0 * 18.5 17.9 103
Gunsight Pass 9820 8.4 .0 * 22.6 19.5 116
Indian Creek 9425 12.4 3.0 413 27.5 28.8 95
Kendall R.S. 7740 .0 .0 * 18.2 18.3 99
Loomis Park 8240 .6 .0 * 24.2 22.3 109
New Fork Lake 8340 .0 .0 * 16.8 15.4 109
Pocket Creek 9360 .0 -M * 19.7 -M *
Snider Basin 8060 .0 .0 * 19.0 18.1 105
Spring Creek Divide 9000 12.6 2.9 434 30.9 30.0 103
Triple Peak 8500 -M .0 * -M 32.4 *
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Basin Index (%) 485* 106
LOWER GREEN RIVER
Blacks Fork Jct 8869 .0 -M * 19.3 -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 15.9 128
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 12.4 3.0 413 27.5 28.8 95
Kelley R.S. 8180 .2 .0 * 24.5 23.6 104
Spirit Lk 10235 5.5 -M * 24.9 -M *
Steel Creek Park 10158 9.2 3.0 307 27.6 22.8 121
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Basin Index (%) 363* 112
UPPER BEAR RIVER
Bear River RS 8777 .0 -M * 21.4 -M *
Bug Lake 7987 .0 .0 * 32.8 25.3 130
Burts Miller Ranch 8000 .0 -M * 11.6 -M *
Chalk Creek #1 9171 6.4 .0 * 38.9 33.0 118
Hayden Fork 9130 .0 .0 * 31.2 27.5 113
Kelley R.S. 8180 .2 .0 * 24.5 23.6 104
Lily Lake 9133 .0 .0 * 22.9 23.2 99
Monte Cristo 8932 15.1 .0 * 42.7 33.8 126
Salt River Summit 7640 .0 .0 * 23.9 21.6 111
Spring Creek Divide 9000 12.6 2.9 434 30.9 30.0 103
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Basin Index (%) 1183* 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.
