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 WEDNESDAY: JUNE 19 , 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 * 27.3 27.5 99
Black Bear 8170 17.4 6.8 256 56.2 48.9 115
Blind Bull Sum 8650 4.0 .0 * 26.2 25.9 101
Cottonwood Creek 7670 .0 .0 * 36.4 33.5 109
East Rim Divide 7930 .0 .0 * 18.4 16.2 114
Grand Targhee 9260 28.9 31.2 93 44.9 42.8 105
Granite Creek 6770 .0 .0 * 29.2 25.5 115
Grassy Lake 7265 -M .0 * -M 46.3 *
Gros Ventre Summit 8750 -M .0 * 18.1 18.6 97
Gunsight Pass 9820 .4 .0 * 23.0 20.4 113
Lewis Lake Divide 7850 .0 .0 * 47.6 44.9 106
Phillips Bench 8200 .6 .0 * 40.6 36.3 112
Salt River Summit 7640 .0 .0 * 25.6 22.2 115
Snake River Station 6920 .0 .0 * 32.4 29.7 109
Spring Creek Divide 9000 1.2 .0 * 31.6 30.8 103
Thumb Divide 7980 .0 .0 * 25.3 25.6 99
Togwotee Pass 9580 9.2 9.9 93 33.0 32.9 100
Two Ocean Plateau 9240 9.3 12.7 73 33.4 36.7 91
Willow Creek 8080 .0 .0 * 47.7 45.1 106
Younts Peak 8350 -M .0 * -M 22.6 *
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Basin Index (%) 117* 106
MADISON-GALLATIN
Black Bear 8170 17.4 6.8 256 56.2 48.9 115
Canyon 7870 .0 .0 * 23.0 22.8 101
Madison Plateau 7750 .1 .0 * 38.2 35.4 108
West Yellowstone 6700 .0 .0 * 23.9 20.3 118
Whiskey Creek 6800 .0 .0 * 30.7 27.9 110
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Basin Index (%) 257* 111
YELLOWSTONE
Beartooth Lake 9360 15.0 5.1 294 29.7 27.1 110
Burnt Mtn 5880 .0 .0 * 28.1 23.7 119
Canyon 7870 .0 .0 * 23.0 22.8 101
Cole Creek 7850 3.8 .0 * 27.1 23.8 114
Evening Star 9200 11.4 5.7 200 41.5 37.8 110
Fisher Creek 9100 -M 13.8 * 47.2 43.2 109
Northeast Entrance 7350 .0 .0 * 21.2 18.8 113
Parker Peak 9400 9.1 2.5 364 35.0 26.2 134
Sylvan Lake 8420 .1 .0 * 37.2 32.0 116
Thumb Divide 7980 .0 .0 * 25.3 25.6 99
Two Ocean Plateau 9240 9.3 12.7 73 33.4 36.7 91
White Mill 8700 3.6 4.8 75 29.1 33.1 88
Wolverine 7650 .0 .0 * 19.6 18.1 108
Younts Peak 8350 -M .0 * -M 22.6 *
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Basin Index (%) 170* 108
WIND RIVER
Burroughs Creek 8750 .0 -M * 23.5 -M *
Castle Creek 8400 .0 -M * 13.9 -M *
Cold Springs 9630 .0 .0 * 17.8 16.9 105
Deer Park 9700 .1 .0 * 27.7 29.3 95
Hobbs Park 10100 5.6 .0 * 24.5 22.3 110
Kirwin 9550 .0 .0 * 21.9 18.9 116
Little Warm 9370 .0 .0 * 13.7 20.1 68
Owl Creek 8975 .0 .0 * 19.0 12.3 154
South Pass 9040 .1 .0 * 22.2 25.2 88
St. Lawrence Alt 8620 -M .0 * -M 16.1 *
Togwotee Pass 9580 9.2 9.9 93 33.0 32.9 100
Townsend Creek 8700 .0 .0 * 22.4 19.7 114
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Basin Index (%) 152* 102
BIGHORN BASIN
Bald Mtn. 9380 8.6 1.3 662* 25.6 25.9 99
Bear Trap Meadow 8200 .0 .0 * 16.4 15.6 105
Bone Springs Div 9350 .2 .0 * 21.4 24.7 87
Grave Springs 8550 .0 .0 * 18.7 17.8 105
Kirwin 9550 .0 .0 * 21.9 18.9 116
Marquette 8760 .0 -M * 25.7 -M *
Middle Powder 7760 .0 .0 * 20.7 19.2 108
Owl Creek 8975 .0 .0 * 19.0 12.3 154
Powder River Pass 9480 .0 .0 * 17.4 21.1 82
Shell Creek 9580 2.5 .0 * 19.7 22.3 88
Timber Creek 7950 .1 .0 * 20.4 15.6 131
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Basin Index (%) 877* 104
SHOSHONE RIVER
Blackwater 9780 15.9 9.5 167 36.6 29.6 124
Evening Star 9200 11.4 5.7 200 41.5 37.8 110
Marquette 8760 .0 -M * 25.7 -M *
Sylvan Lake 8420 .1 .0 * 37.2 32.0 116
Sylvan Road 7120 .0 .0 * 22.1 23.4 94
Younts Peak 8350 -M .0 * -M 22.6 *
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Basin Index (%) 180* 112
POWDER RIVER
Bear Trap Meadow 8200 .0 .0 * 16.4 15.6 105
Cloud Peak Reservoir 9860 1.8 .0 * 22.9 23.5 97
Grave Springs 8550 .0 .0 * 18.7 17.8 105
Hansen Sawmill 8360 .1 .0 * 19.1 16.1 119
Middle Powder 7760 .0 .0 * 20.7 19.2 108
Powder River Pass 9480 .0 .0 * 17.4 21.1 82
Soldier Park 8720 .0 -M * 17.0 -M *
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Basin Index (%) * 102
TONGUE RIVER
Big Goose 7990 .1 .0 * 24.6 19.8 124
Bone Springs Div 9350 .2 .0 * 21.4 24.7 87
Burgess Junction 7880 .0 .0 * 21.4 20.0 107
Dome Lake 8880 -M .0 * 24.4 22.4 109
Little Goose 8870 .0 -M * 17.8 -M *
Sucker Creek 8880 .0 .0 * 24.8 23.8 104
Tie Creek 6870 .0 .0 * -M 21.1 *
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Basin Index (%) * 105
BELLE FOURCHE
Blind Park 6890 .1 .0 * 13.9 21.0 66
Cole Canyon 5910 .0 .0 * 23.0 19.2 120
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Basin Index (%) * 92
CHEYENNE RIVER BASIN
Blind Park 6890 .1 .0 * 13.9 21.0 66
North Rapid Creek 6130 -M .0 * 14.6 18.8 78
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Basin Index (%) * 72
UPPER N. PLATTE
Arapaho Ridge 10960 12.8 .0 * 36.5 31.1 117
Blackhall Mtn 9820 8.8 -M * 43.7 -M *
Columbine 9160 .0 .0 * 37.3 32.6 114
Divide Peak 8880 .0 .0 * 31.7 28.7 110
Joe Wright 10120 8.0 .0 * 39.5 36.1 109
Laprele Creek 8375 .0 .0 * 21.3 19.5 109
Med Bow 10500 26.2 -M * 46.5 -M *
Never Summer 10280 10.6 1.9 558* 27.3 -M *
North French Creek 10130 13.6 4.9 278 40.2 37.0 109
Old Battle 10000 28.7 .6 4783* 47.3 45.3 104
Rawah 9020 .2 .0 * 23.8 21.3 112
Sage Creek Basin 7850 -M .0 * 22.5 19.0 118
Sand Lake 10050 21.6 5.6 386 34.1 35.3 97
South Brush Creek 8440 .0 .0 * 18.3 22.4 82
Tower 10500 34.3 15.2 226 59.2 51.2 116
Webber Springs 9250 .0 .0 * 40.9 34.5 119
Whiskey Park 8950 .1 .0 * 42.1 36.5 115
Willow Creek Pass 9540 .1 .0 * 23.1 19.9 116
Zirkel 9340 .0 .0 * 43.1 36.3 119
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Basin Index (%) 461* 111
SWEETWATER
Deer Park 9700 .1 .0 * 27.7 29.3 95
Larsen Creek 9000 .1 .0 * 19.5 -M *
South Pass 9040 .1 .0 * 22.2 25.2 88
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Basin Index (%) * 92
LOWER N. PLATTE
Casper Mtn. 7900 .0 .0 * 24.2 23.6 103
Laprele Creek 8375 .0 .0 * 21.3 19.5 109
Reno Hill 8400 .2 .0 * 28.2 24.2 117
Windy Peak 7900 -M .0 * 18.3 17.8 103
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Basin Index (%) * 108
LARAMIE RIVER
Brooklyn Lake 10240 .1 .0 * 35.1 29.9 117
Cinnabar Park 9574 -M .0 * 32.4 32.4 100
Crow Creek 8330 .2 .0 * 18.2 18.9 96
Deadman Hill 10220 .2 .0 * 26.5 25.4 104
Rawah 9020 .2 .0 * 23.8 21.3 112
Roach 9700 .2 .0 * 31.6 27.4 115
Windy Peak 7900 -M .0 * 18.3 17.8 103
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Basin Index (%) * 107
S. PLATTE
Black Mountain 8920 .1 -M * 20.4 -M *
Crow Creek 8330 .2 .0 * 18.2 18.9 96
Deadman Hill 10220 .2 .0 * 26.5 25.4 104
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Basin Index (%) * 101
LITTLE SNAKE RIVER
Battle Mountain 7440 .0 .0 * 22.3 20.3 110
Divide Peak 8880 .0 .0 * 31.7 28.7 110
Elk River 8700 .0 .0 * 26.9 26.8 100
Little Snake River 8915 .0 .0 * 48.1 38.1 126
Old Battle 10000 28.7 .6 4783* 47.3 45.3 104
Sage Creek Basin 7850 -M .0 * 22.5 19.0 118
Sandstone RS 8150 .0 .0 * 24.1 24.5 98
Whiskey Park 8950 .1 .0 * 42.1 36.5 115
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Basin Index (%) 4800* 111
UPPER GREEN RIVER
Big Sandy Opening 9080 .0 .0 * 19.9 19.5 102
Blind Bull Sum 8650 4.0 .0 * 26.2 25.9 101
East Rim Divide 7930 .0 .0 * 18.4 16.2 114
Elkhart Park G.S. 9400 .0 .0 * 21.5 19.4 111
Gros Ventre Summit 8750 -M .0 * 18.1 18.6 97
Gunsight Pass 9820 .4 .0 * 23.0 20.4 113
Indian Creek 9425 2.4 .0 * 27.6 29.5 94
Kendall R.S. 7740 .0 .0 * 18.5 18.8 98
Loomis Park 8240 .6 .0 * 24.4 22.8 107
New Fork Lake 8340 .0 .0 * 17.5 15.9 110
Pocket Creek 9360 .0 -M * 20.9 -M *
Snider Basin 8060 .0 .0 * 19.9 18.5 108
Spring Creek Divide 9000 1.2 .0 * 31.6 30.8 103
Triple Peak 8500 -M .0 * -M 33.2 *
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Basin Index (%) * 104
LOWER GREEN RIVER
Blacks Fork Jct 8869 .0 -M * 19.9 -M *
Buck Pasture 9632 .0 -M * 28.9 -M *
EF Blacks Fork GS 9360 .0 -M * 20.1 -M *
Hams Fork 7840 .0 .0 * 20.5 16.5 124
Hewinta 9500 .0 .0 * 22.4 19.8 113
Hickerson Park 9122 .0 .0 * 18.3 15.5 118
Hole-in-Rock 9168 .1 .0 * 18.7 15.1 124
Indian Creek 9425 2.4 .0 * 27.6 29.5 94
Kelley R.S. 8180 .1 .0 * 25.2 24.2 104
Spirit Lk 10235 .3 -M * 25.6 -M *
Steel Creek Park 10158 .6 .0 * 27.8 23.2 120
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Basin Index (%) * 112
UPPER BEAR RIVER
Bear River RS 8777 .0 -M * 21.8 -M *
Bug Lake 7987 .1 .0 * 33.2 25.8 129
Burts Miller Ranch 8000 .0 -M * 11.9 -M *
Chalk Creek #1 9171 .0 .0 * 39.2 33.7 116
Hayden Fork 9130 .0 .0 * 31.6 28.2 112
Kelley R.S. 8180 .1 .0 * 25.2 24.2 104
Lily Lake 9133 .0 .0 * 23.2 23.8 97
Monte Cristo 8932 1.0 .0 * 42.6 34.4 124
Salt River Summit 7640 .0 .0 * 25.6 22.2 115
Spring Creek Divide 9000 1.2 .0 * 31.6 30.8 103
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Basin Index (%) * 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.
