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 27 , 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 * 27.2 27.7 98
Black Bear 8170 10.7 .0 * 56.9 49.4 115
Blind Bull Sum 8650 .0 .0 * 26.1 26.2 100
Cottonwood Creek 7670 .0 .0 * 36.2 33.8 107
East Rim Divide 7930 .0 .0 * 18.5 16.5 112
Grand Targhee 9260 22.2 21.4 104 45.0 43.3 104
Granite Creek 6770 .0 .0 * 29.2 25.9 113
Grassy Lake 7265 -M .0 * -M 46.8 *
Gros Ventre Summit 8750 -M .0 * 18.0 18.9 95
Gunsight Pass 9820 .0 .0 * 23.2 20.8 112
Lewis Lake Divide 7850 .0 .0 * 47.9 45.5 105
Phillips Bench 8200 .0 .0 * 40.5 36.6 111
Salt River Summit 7640 .0 .0 * 25.7 22.5 114
Snake River Station 6920 .0 .0 * 32.6 30.2 108
Spring Creek Divide 9000 .0 .0 * 31.4 31.1 101
Thumb Divide 7980 .0 .0 * 25.7 26.0 99
Togwotee Pass 9580 3.0 .8 375* 33.1 33.3 99
Two Ocean Plateau 9240 2.0 3.0 67 33.4 37.3 90
Willow Creek 8080 .0 .0 * 47.8 45.5 105
Younts Peak 8350 -M .0 * -M 23.0 *
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Basin Index (%) 150* 105
MADISON-GALLATIN
Black Bear 8170 10.7 .0 * 56.9 49.4 115
Canyon 7870 .0 .0 * 23.8 23.3 102
Madison Plateau 7750 .0 .0 * 38.8 35.8 108
West Yellowstone 6700 .0 .0 * 24.0 20.5 117
Whiskey Creek 6800 .0 .0 * 30.7 28.3 108
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Basin Index (%) * 111
YELLOWSTONE
Beartooth Lake 9360 11.4 .0 * 30.2 27.8 109
Burnt Mtn 5880 -M .0 * -M 24.3 *
Canyon 7870 .0 .0 * 23.8 23.3 102
Cole Creek 7850 .0 .0 * 27.8 24.4 114
Evening Star 9200 5.0 .1 5000* 42.0 38.3 110
Fisher Creek 9100 -M 2.2 * 48.8 44.0 111
Northeast Entrance 7350 .1 .0 * 22.4 19.3 116
Parker Peak 9400 4.2 .0 * 35.8 26.8 134
Sylvan Lake 8420 .0 .0 * 37.8 32.5 116
Thumb Divide 7980 .0 .0 * 25.7 26.0 99
Two Ocean Plateau 9240 2.0 3.0 67 33.4 37.3 90
White Mill 8700 .8 .0 * 29.8 33.9 88
Wolverine 7650 .0 .0 * 20.0 18.5 108
Younts Peak 8350 -M .0 * -M 23.0 *
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Basin Index (%) 758* 107
WIND RIVER
Burroughs Creek 8750 .0 -M * 23.8 -M *
Castle Creek 8400 .0 -M * 13.9 -M *
Cold Springs 9630 .0 .0 * 18.1 17.4 104
Deer Park 9700 .1 .0 * 28.0 29.8 94
Hobbs Park 10100 .0 .0 * 25.4 22.8 111
Kirwin 9550 .0 .0 * 21.8 19.3 113
Little Warm 9370 .0 .0 * 13.8 20.5 67
Owl Creek 8975 .0 .0 * 19.4 12.7 153
South Pass 9040 .2 .0 * 22.6 25.6 88
St. Lawrence Alt 8620 -M .0 * -M 16.5 *
Togwotee Pass 9580 3.0 .8 375* 33.1 33.3 99
Townsend Creek 8700 .0 .0 * 22.6 20.1 112
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Basin Index (%) 412* 102
BIGHORN BASIN
Bald Mtn. 9380 1.4 .0 * 27.2 26.5 103
Bear Trap Meadow 8200 .0 .0 * 17.3 16.0 108
Bone Springs Div 9350 .0 .0 * 22.1 25.2 88
Grave Springs 8550 .0 .0 * 19.5 18.1 108
Kirwin 9550 .0 .0 * 21.8 19.3 113
Marquette 8760 .0 -M * 26.0 -M *
Middle Powder 7760 .0 .0 * 21.4 19.7 109
Owl Creek 8975 .0 .0 * 19.4 12.7 153
Powder River Pass 9480 .0 .0 * 17.1 21.6 79
Shell Creek 9580 .0 .0 * 22.3 22.8 98
Timber Creek 7950 .1 .0 * 20.5 15.9 129
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Basin Index (%) * 105
SHOSHONE RIVER
Blackwater 9780 10.6 .8 1325* 36.9 30.1 123
Evening Star 9200 5.0 .1 5000* 42.0 38.3 110
Marquette 8760 .0 -M * 26.0 -M *
Sylvan Lake 8420 .0 .0 * 37.8 32.5 116
Sylvan Road 7120 .0 .0 * 22.5 23.7 95
Younts Peak 8350 -M .0 * -M 23.0 *
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Basin Index (%) 1733* 112
POWDER RIVER
Bear Trap Meadow 8200 .0 .0 * 17.3 16.0 108
Cloud Peak Reservoir 9860 .0 .0 * 24.0 24.0 100
Grave Springs 8550 .0 .0 * 19.5 18.1 108
Hansen Sawmill 8360 .0 .0 * 19.2 16.6 116
Middle Powder 7760 .0 .0 * 21.4 19.7 109
Powder River Pass 9480 .0 .0 * 17.1 21.6 79
Soldier Park 8720 .0 -M * 17.1 -M *
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Basin Index (%) * 102
TONGUE RIVER
Big Goose 7990 .0 .0 * 24.9 20.2 123
Bone Springs Div 9350 .0 .0 * 22.1 25.2 88
Burgess Junction 7880 .0 .0 * 22.0 20.4 108
Dome Lake 8880 -M .0 * 25.5 22.9 111
Little Goose 8870 .0 -M * 18.0 -M *
Sucker Creek 8880 .0 .0 * 26.5 24.4 109
Tie Creek 6870 .0 .0 * 26.3 21.6 122
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Basin Index (%) * 109
BELLE FOURCHE
Blind Park 6890 .0 .0 * 14.3 21.4 67
Cole Canyon 5910 .0 .0 * 25.2 19.7 128
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Basin Index (%) * 96
CHEYENNE RIVER BASIN
Blind Park 6890 .0 .0 * 14.3 21.4 67
North Rapid Creek 6130 -M .0 * 14.8 19.5 76
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Basin Index (%) * 71
UPPER N. PLATTE
Arapaho Ridge 10960 11.8 .0 * 39.5 31.3 126
Blackhall Mtn 9820 .7 -M * 45.4 -M *
Columbine 9160 -M .0 * 41.3 32.9 126
Divide Peak 8880 .0 .0 * 32.9 28.9 114
Joe Wright 10120 5.0 .0 * 42.7 36.5 117
Laprele Creek 8375 .0 .0 * 22.8 19.8 115
Med Bow 10500 23.6 -M * 49.0 -M *
Never Summer 10280 7.0 .0 * 29.7 -M *
North French Creek 10130 10.9 .0 * 42.6 37.3 114
Old Battle 10000 19.1 .0 * 48.6 45.6 107
Rawah 9020 1.8 .0 * 27.4 21.4 128
Sage Creek Basin 7850 -M .0 * 23.2 19.4 120
Sand Lake 10050 17.5 .0 * 36.9 35.7 103
South Brush Creek 8440 .0 .0 * 20.0 22.8 88
Tower 10500 32.1 .6 5350* 64.3 51.6 125
Webber Springs 9250 .0 .0 * 41.8 34.9 120
Whiskey Park 8950 .0 .0 * -M 36.8 *
Willow Creek Pass 9540 .1 .0 * 25.4 20.3 125
Zirkel 9340 -M .0 * 49.4 36.7 135
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Basin Index (%) 17550* 118
SWEETWATER
Deer Park 9700 .1 .0 * 28.0 29.8 94
Larsen Creek 9000 .0 .0 * 19.6 -M *
South Pass 9040 .2 .0 * 22.6 25.6 88
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Basin Index (%) * 91
LOWER N. PLATTE
Casper Mtn. 7900 -M .0 * 24.7 23.9 103
Laprele Creek 8375 .0 .0 * 22.8 19.8 115
Reno Hill 8400 .0 .0 * 30.1 24.6 122
Windy Peak 7900 .0 .0 * 19.7 18.3 108
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Basin Index (%) * 112
LARAMIE RIVER
Brooklyn Lake 10240 .0 .0 * 37.3 30.3 123
Cinnabar Park 9574 -M .0 * 34.4 32.7 105
Crow Creek 8330 .0 .0 * 19.0 19.2 99
Deadman Hill 10220 .2 .0 * 29.7 25.7 116
Rawah 9020 1.8 .0 * 27.4 21.4 128
Roach 9700 .1 .0 * 35.5 27.7 128
Windy Peak 7900 .0 .0 * 19.7 18.3 108
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Basin Index (%) * 116
S. PLATTE
Black Mountain 8920 .0 -M * 21.7 -M *
Crow Creek 8330 .0 .0 * 19.0 19.2 99
Deadman Hill 10220 .2 .0 * 29.7 25.7 116
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Basin Index (%) * 108
LITTLE SNAKE RIVER
Battle Mountain 7440 .0 .0 * 23.7 20.5 116
Divide Peak 8880 .0 .0 * 32.9 28.9 114
Elk River 8700 .0 .0 * -M 27.0 *
Little Snake River 8915 .0 .0 * 49.4 38.4 129
Old Battle 10000 19.1 .0 * 48.6 45.6 107
Sage Creek Basin 7850 -M .0 * 23.2 19.4 120
Sandstone RS 8150 -M .0 * 25.4 24.7 103
Whiskey Park 8950 .0 .0 * -M 36.8 *
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Basin Index (%) * 114
UPPER GREEN RIVER
Big Sandy Opening 9080 .0 .0 * 19.8 19.8 100
Blind Bull Sum 8650 .0 .0 * 26.1 26.2 100
East Rim Divide 7930 .0 .0 * 18.5 16.5 112
Elkhart Park G.S. 9400 .0 .0 * 21.5 19.8 109
Gros Ventre Summit 8750 -M .0 * 18.0 18.9 95
Gunsight Pass 9820 .0 .0 * 23.2 20.8 112
Indian Creek 9425 .0 .0 * 27.2 29.8 91
Kendall R.S. 7740 .0 .0 * 18.8 19.1 98
Loomis Park 8240 .6 .0 * 24.4 23.1 106
New Fork Lake 8340 .0 .0 * 17.8 16.3 109
Pocket Creek 9360 -M -M * 21.2 -M *
Snider Basin 8060 .0 .0 * 20.1 18.7 107
Spring Creek Divide 9000 .0 .0 * 31.4 31.1 101
Triple Peak 8500 -M .0 * -M 33.6 *
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Basin Index (%) * 103
LOWER GREEN RIVER
Blacks Fork Jct 8869 .0 -M * 20.3 -M *
Buck Pasture 9632 .0 -M * 29.3 -M *
EF Blacks Fork GS 9360 .0 -M * 20.5 -M *
Hams Fork 7840 .0 .0 * 20.5 16.7 123
Hewinta 9500 .0 .0 * 23.1 20.2 114
Hickerson Park 9122 .0 .0 * 18.9 15.9 119
Hole-in-Rock 9168 .1 .0 * 19.0 15.5 123
Indian Creek 9425 .0 .0 * 27.2 29.8 91
Kelley R.S. 8180 .0 .0 * 25.3 24.4 104
Spirit Lk 10235 .0 -M * 26.2 -M *
Steel Creek Park 10158 -M .0 * 28.3 23.7 119
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Basin Index (%) * 111
UPPER BEAR RIVER
Bear River RS 8777 .0 -M * 22.0 -M *
Bug Lake 7987 .0 .0 * 33.2 25.9 128
Burts Miller Ranch 8000 .0 -M * 12.1 -M *
Chalk Creek #1 9171 .0 .0 * 39.2 34.1 115
Hayden Fork 9130 .0 .0 * 31.9 28.5 112
Kelley R.S. 8180 .0 .0 * 25.3 24.4 104
Lily Lake 9133 .0 .0 * 23.5 24.1 98
Monte Cristo 8932 .4 .0 * 42.7 34.6 123
Salt River Summit 7640 .0 .0 * 25.7 22.5 114
Spring Creek Divide 9000 .0 .0 * 31.4 31.1 101
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Basin Index (%) * 112
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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.
