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 SUNDAY: JUNE 30 , 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 27.8 98
Black Bear 8170 4.0 .0 * 57.0 49.5 115
Blind Bull Sum 8650 .0 .0 * 26.1 26.3 99
Cottonwood Creek 7670 .0 .0 * 36.3 33.9 107
East Rim Divide 7930 .0 .0 * 18.4 16.6 111
Grand Targhee 9260 16.1 15.8 102 45.0 43.3 104
Granite Creek 6770 .0 .0 * 29.4 26.0 113
Grassy Lake 7265 -M .0 * -M 46.8 *
Gros Ventre Summit 8750 -M .0 * 18.2 19.0 96
Gunsight Pass 9820 .0 .0 * 23.1 20.8 111
Lewis Lake Divide 7850 .0 .0 * 47.9 45.6 105
Phillips Bench 8200 .0 .0 * 40.5 36.7 110
Salt River Summit 7640 .0 .0 * 25.6 22.6 113
Snake River Station 6920 .0 .0 * 32.6 30.3 108
Spring Creek Divide 9000 .0 .0 * 31.4 31.2 101
Thumb Divide 7980 .0 .0 * 25.6 26.2 98
Togwotee Pass 9580 .0 .0 * 33.0 33.4 99
Two Ocean Plateau 9240 .2 .0 * 33.4 37.5 89
Willow Creek 8080 .0 .0 * 47.8 45.6 105
Younts Peak 8350 -M .0 * -M 23.1 *
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Basin Index (%) 128* 105
MADISON-GALLATIN
Black Bear 8170 4.0 .0 * 57.0 49.5 115
Canyon 7870 .0 .0 * 23.8 23.4 102
Madison Plateau 7750 .0 .0 * 38.8 36.0 108
West Yellowstone 6700 -M .0 * 24.0 20.6 117
Whiskey Creek 6800 .0 .0 * 31.0 28.5 109
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Basin Index (%) * 111
YELLOWSTONE
Beartooth Lake 9360 6.5 .0 * 30.3 28.0 108
Burnt Mtn 5880 .0 .0 * 32.4 24.4 133
Canyon 7870 .0 .0 * 23.8 23.4 102
Cole Creek 7850 .0 .0 * 28.1 24.6 114
Evening Star 9200 .0 .0 * 41.9 38.5 109
Fisher Creek 9100 -M .4 * 48.8 44.2 110
Northeast Entrance 7350 .0 .0 * 22.4 19.5 115
Parker Peak 9400 .1 .0 * 35.8 26.9 133
Sylvan Lake 8420 .0 .0 * 37.8 32.6 116
Thumb Divide 7980 .0 .0 * 25.6 26.2 98
Two Ocean Plateau 9240 .2 .0 * 33.4 37.5 89
White Mill 8700 .1 .0 * 29.8 34.0 88
Wolverine 7650 .0 .0 * 20.0 18.6 108
Younts Peak 8350 -M .0 * -M 23.1 *
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Basin Index (%) * 108
WIND RIVER
Burroughs Creek 8750 .0 -M * 24.0 -M *
Castle Creek 8400 .0 -M * 13.9 -M *
Cold Springs 9630 .0 .0 * 18.3 17.5 105
Deer Park 9700 .0 .0 * 28.1 29.9 94
Hobbs Park 10100 .0 .0 * 26.0 22.9 114
Kirwin 9550 .0 .0 * 22.1 19.5 113
Little Warm 9370 .0 .0 * 14.0 20.6 68
Owl Creek 8975 .0 .0 * 19.4 12.8 152
South Pass 9040 .1 .0 * 22.7 25.7 88
St. Lawrence Alt 8620 -M .0 * -M 16.6 *
Togwotee Pass 9580 .0 .0 * 33.0 33.4 99
Townsend Creek 8700 .0 .0 * 22.9 20.3 113
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Basin Index (%) * 102
BIGHORN BASIN
Bald Mtn. 9380 .0 .0 * 27.8 26.7 104
Bear Trap Meadow 8200 .0 .0 * 17.6 16.2 109
Bone Springs Div 9350 .0 .0 * 21.9 25.3 87
Grave Springs 8550 .0 .0 * 19.6 18.3 107
Kirwin 9550 .0 .0 * 22.1 19.5 113
Marquette 8760 .0 -M * 26.0 -M *
Middle Powder 7760 .0 .0 * 21.7 19.9 109
Owl Creek 8975 .0 .0 * 19.4 12.8 152
Powder River Pass 9480 .0 .0 * 17.1 21.7 79
Shell Creek 9580 .0 .0 * 22.7 22.9 99
Timber Creek 7950 .1 .0 * 20.4 16.0 128
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Basin Index (%) * 106
SHOSHONE RIVER
Blackwater 9780 5.3 .0 * 36.9 30.3 122
Evening Star 9200 .0 .0 * 41.9 38.5 109
Marquette 8760 .0 -M * 26.0 -M *
Sylvan Lake 8420 .0 .0 * 37.8 32.6 116
Sylvan Road 7120 .0 .0 * 22.6 23.9 95
Younts Peak 8350 -M .0 * -M 23.1 *
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Basin Index (%) * 111
POWDER RIVER
Bear Trap Meadow 8200 .0 .0 * 17.6 16.2 109
Cloud Peak Reservoir 9860 .0 .0 * 24.2 24.3 100
Grave Springs 8550 .0 .0 * 19.6 18.3 107
Hansen Sawmill 8360 .0 .0 * 19.2 16.7 115
Middle Powder 7760 .0 .0 * 21.7 19.9 109
Powder River Pass 9480 .0 .0 * 17.1 21.7 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 * 21.9 25.3 87
Burgess Junction 7880 .0 .0 * 21.9 20.5 107
Dome Lake 8880 -M .0 * 25.8 23.0 112
Little Goose 8870 .0 -M * 18.0 -M *
Sucker Creek 8880 .0 .0 * 27.1 24.5 111
Tie Creek 6870 .0 .0 * 26.2 21.7 121
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Basin Index (%) * 109
BELLE FOURCHE
Blind Park 6890 .0 .0 * 14.2 21.6 66
Cole Canyon 5910 .0 .0 * 25.2 19.8 127
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Basin Index (%) * 95
CHEYENNE RIVER BASIN
Blind Park 6890 .0 .0 * 14.2 21.6 66
North Rapid Creek 6130 -M .0 * -M 19.6 *
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Basin Index (%) * 66
UPPER N. PLATTE
Arapaho Ridge 10960 7.4 .0 * 39.7 31.4 126
Blackhall Mtn 9820 -M -M * 45.5 -M *
Columbine 9160 .0 .0 * 41.2 33.0 125
Divide Peak 8880 -M .0 * 33.0 29.0 114
Joe Wright 10120 .1 .0 * 42.6 36.6 116
Laprele Creek 8375 .0 .0 * 22.9 19.9 115
Med Bow 10500 18.1 -M * 48.9 -M *
Never Summer 10280 1.6 .0 * 29.7 -M *
North French Creek 10130 6.0 .0 * 42.5 37.4 114
Old Battle 10000 12.9 .0 * 48.7 45.7 107
Rawah 9020 .0 .0 * 27.4 21.5 127
Sage Creek Basin 7850 -M .0 * 23.2 19.4 120
Sand Lake 10050 12.5 .0 * 37.4 35.8 104
South Brush Creek 8440 .0 .0 * 20.1 22.8 88
Tower 10500 26.0 .0 * 64.3 51.8 124
Webber Springs 9250 .0 .0 * 41.7 35.0 119
Whiskey Park 8950 .0 .0 * -M 36.8 *
Willow Creek Pass 9540 .1 .0 * 25.4 20.5 124
Zirkel 9340 .3 .0 * 49.4 36.8 134
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Basin Index (%) * 117
SWEETWATER
Deer Park 9700 .0 .0 * 28.1 29.9 94
Larsen Creek 9000 .1 .0 * 19.6 -M *
South Pass 9040 .1 .0 * 22.7 25.7 88
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Basin Index (%) * 91
LOWER N. PLATTE
Casper Mtn. 7900 .0 .0 * 25.0 24.1 104
Laprele Creek 8375 .0 .0 * 22.9 19.9 115
Reno Hill 8400 .0 .0 * 30.4 24.7 123
Windy Peak 7900 .0 .0 * 20.0 18.4 109
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Basin Index (%) * 113
LARAMIE RIVER
Brooklyn Lake 10240 .0 .0 * 37.7 30.4 124
Cinnabar Park 9574 -M .0 * 34.3 32.9 104
Crow Creek 8330 .0 .0 * 19.0 19.3 98
Deadman Hill 10220 .1 .0 * 29.8 25.8 116
Rawah 9020 .0 .0 * 27.4 21.5 127
Roach 9700 .0 .0 * 35.5 27.8 128
Windy Peak 7900 .0 .0 * 20.0 18.4 109
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Basin Index (%) * 116
S. PLATTE
Black Mountain 8920 -M -M * 21.7 -M *
Crow Creek 8330 .0 .0 * 19.0 19.3 98
Deadman Hill 10220 .1 .0 * 29.8 25.8 116
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Basin Index (%) * 108
LITTLE SNAKE RIVER
Battle Mountain 7440 .0 .0 * 23.6 20.5 115
Divide Peak 8880 -M .0 * 33.0 29.0 114
Elk River 8700 .0 .0 * 29.8 27.2 110
Little Snake River 8915 .0 .0 * 49.4 38.5 128
Old Battle 10000 12.9 .0 * 48.7 45.7 107
Sage Creek Basin 7850 -M .0 * 23.2 19.4 120
Sandstone RS 8150 -M .0 * 25.5 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 * 19.5 19.9 98
Blind Bull Sum 8650 .0 .0 * 26.1 26.3 99
East Rim Divide 7930 .0 .0 * 18.4 16.6 111
Elkhart Park G.S. 9400 .0 .0 * 21.5 19.9 108
Gros Ventre Summit 8750 -M .0 * 18.2 19.0 96
Gunsight Pass 9820 .0 .0 * 23.1 20.8 111
Indian Creek 9425 .0 .0 * 27.1 29.9 91
Kendall R.S. 7740 .0 .0 * 18.8 19.2 98
Loomis Park 8240 .5 .0 * 24.1 23.2 104
New Fork Lake 8340 .0 .0 * 18.1 16.4 110
Pocket Creek 9360 -M -M * 21.3 -M *
Snider Basin 8060 .0 .0 * 20.1 18.8 107
Spring Creek Divide 9000 .0 .0 * 31.4 31.2 101
Triple Peak 8500 -M .0 * -M 33.7 *
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Basin Index (%) * 102
LOWER GREEN RIVER
Blacks Fork Jct 8869 .1 -M * 20.2 -M *
Buck Pasture 9632 .0 -M * 29.1 -M *
EF Blacks Fork GS 9360 .0 -M * 20.5 -M *
Hams Fork 7840 .0 .0 * 20.5 16.8 122
Hewinta 9500 .0 .0 * 23.1 20.3 114
Hickerson Park 9122 .0 .0 * 18.8 15.9 118
Hole-in-Rock 9168 -M .0 * -M 15.6 *
Indian Creek 9425 .0 .0 * 27.1 29.9 91
Kelley R.S. 8180 .0 .0 * 25.4 24.4 104
Spirit Lk 10235 .0 -M * 26.2 -M *
Steel Creek Park 10158 -M .0 * 28.2 23.8 118
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Basin Index (%) * 109
UPPER BEAR RIVER
Bear River RS 8777 .0 -M * 21.9 -M *
Bug Lake 7987 -M .0 * -M 25.9 *
Burts Miller Ranch 8000 .0 -M * 12.0 -M *
Chalk Creek #1 9171 .0 .0 * 39.1 34.2 114
Hayden Fork 9130 .0 .0 * 31.7 28.6 111
Kelley R.S. 8180 .0 .0 * 25.4 24.4 104
Lily Lake 9133 .0 .0 * 23.5 24.2 97
Monte Cristo 8932 .4 .0 * 42.6 34.6 123
Salt River Summit 7640 .0 .0 * 25.6 22.6 113
Spring Creek Divide 9000 .0 .0 * 31.4 31.2 101
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Basin Index (%) * 110
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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.
