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 6 , 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 * 26.0 26.1 100
Black Bear 8170 30.2 19.3 156 54.1 47.1 115
Blind Bull Sum 8650 19.9 7.4 269 25.0 24.8 101
Cottonwood Creek 7670 .0 .0 * 34.8 32.0 109
East Rim Divide 7930 .0 .0 * 17.2 15.4 112
Grand Targhee 9260 40.0 37.9 106 41.8 39.6 106
Granite Creek 6770 .0 .0 * 28.0 24.7 113
Grassy Lake 7265 -M .0 * -M 44.4 *
Gros Ventre Summit 8750 -M .0 * 17.5 17.4 101
Gunsight Pass 9820 8.9 .0 * 20.9 19.1 109
Lewis Lake Divide 7850 8.5 6.1 139 45.2 43.4 104
Phillips Bench 8200 11.1 5.5 202 39.0 34.9 112
Salt River Summit 7640 .0 .0 * 23.3 21.2 110
Snake River Station 6920 .0 .0 * 30.5 28.3 108
Spring Creek Divide 9000 15.6 7.1 220 30.1 29.6 102
Thumb Divide 7980 .0 .0 * 23.9 24.4 98
Togwotee Pass 9580 18.9 17.9 106 31.7 31.5 101
Two Ocean Plateau 9240 21.1 22.0 96 31.8 35.0 91
Willow Creek 8080 7.0 .0 * 45.6 43.3 105
Younts Peak 8350 -M 1.0 * -M 21.2 *
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Basin Index (%) 147* 105
MADISON-GALLATIN
Black Bear 8170 30.2 19.3 156 54.1 47.1 115
Canyon 7870 .3 .0 * 20.8 21.4 97
Madison Plateau 7750 9.6 2.2 436* 36.0 33.9 106
West Yellowstone 6700 .0 .0 * 22.1 19.2 115
Whiskey Creek 6800 .0 .0 * 28.9 26.4 109
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Basin Index (%) 187* 109
YELLOWSTONE
Beartooth Lake 9360 21.0 14.2 148 27.8 25.7 108
Burnt Mtn 5880 .0 .0 * 27.0 21.4 126
Canyon 7870 .3 .0 * 20.8 21.4 97
Cole Creek 7850 14.4 4.4 327 24.1 22.0 110
Evening Star 9200 21.6 14.6 148 39.0 35.7 109
Fisher Creek 9100 29.6 25.1 118 44.4 40.9 109
Northeast Entrance 7350 .0 .0 * 19.2 17.2 112
Parker Peak 9400 18.3 10.4 176 32.3 24.3 133
Sylvan Lake 8420 3.9 1.8 217* 34.1 30.0 114
Thumb Divide 7980 .0 .0 * 23.9 24.4 98
Two Ocean Plateau 9240 21.1 22.0 96 31.8 35.0 91
White Mill 8700 15.6 13.6 115 27.6 31.1 89
Wolverine 7650 .0 .0 * 18.4 16.9 109
Younts Peak 8350 -M 1.0 * -M 21.2 *
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Basin Index (%) 137 107
WIND RIVER
Burroughs Creek 8750 .0 -M * 21.3 -M *
Castle Creek 8400 .0 -M * 12.7 -M *
Cold Springs 9630 .0 .0 * 16.7 15.8 106
Deer Park 9700 9.8 .0 * 26.7 27.6 97
Hobbs Park 10100 17.5 3.0 583 23.5 21.1 111
Kirwin 9550 4.5 .5 900* 20.1 17.5 115
Little Warm 9370 .0 .0 * 12.2 18.9 65
Owl Creek 8975 .1 .0 * 16.4 11.2 146
South Pass 9040 5.1 .0 * 20.6 24.0 86
St. Lawrence Alt 8620 -M .0 * -M 15.0 *
Togwotee Pass 9580 18.9 17.9 106 31.7 31.5 101
Townsend Creek 8700 2.1 .0 * 22.2 18.7 119
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Basin Index (%) 271* 102
BIGHORN BASIN
Bald Mtn. 9380 18.9 10.6 178 23.5 24.0 98
Bear Trap Meadow 8200 .0 .0 * 14.9 14.3 104
Bone Springs Div 9350 10.5 4.2 250 20.0 22.8 88
Grave Springs 8550 .0 .0 * 16.9 16.5 102
Kirwin 9550 4.5 .5 900* 20.1 17.5 115
Marquette 8760 7.7 -M * 24.4 -M *
Middle Powder 7760 .0 .0 * 19.3 17.8 108
Owl Creek 8975 .1 .0 * 16.4 11.2 146
Powder River Pass 9480 .0 .0 * 15.0 19.3 78
Shell Creek 9580 11.0 5.7 193 17.9 20.4 88
Timber Creek 7950 .2 .0 * 19.2 14.1 136
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Basin Index (%) 215* 103
SHOSHONE RIVER
Blackwater 9780 24.0 16.4 146 35.3 27.9 127
Evening Star 9200 21.6 14.6 148 39.0 35.7 109
Marquette 8760 7.7 -M * 24.4 -M *
Sylvan Lake 8420 3.9 1.8 217* 34.1 30.0 114
Sylvan Road 7120 .0 .0 * 20.6 21.8 94
Younts Peak 8350 -M 1.0 * -M 21.2 *
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Basin Index (%) 151* 112
POWDER RIVER
Bear Trap Meadow 8200 .0 .0 * 14.9 14.3 104
Cloud Peak Reservoir 9860 11.8 1.5 787* 22.0 21.8 101
Grave Springs 8550 .0 .0 * 16.9 16.5 102
Hansen Sawmill 8360 .0 .0 * 17.4 14.8 118
Middle Powder 7760 .0 .0 * 19.3 17.8 108
Powder River Pass 9480 .0 .0 * 15.0 19.3 78
Soldier Park 8720 .0 -M * 15.7 -M *
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Basin Index (%) 787* 101
TONGUE RIVER
Big Goose 7990 2.6 .0 * 21.4 18.6 115
Bone Springs Div 9350 10.5 4.2 250 20.0 22.8 88
Burgess Junction 7880 .0 .0 * 18.6 18.5 101
Dome Lake 8880 6.1 .0 * 21.5 20.8 103
Little Goose 8870 6.4 -M * 15.7 -M *
Sucker Creek 8880 6.7 .0 * 21.8 22.0 99
Tie Creek 6870 .0 .0 * 23.8 19.2 124
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Basin Index (%) 617* 104
BELLE FOURCHE
Blind Park 6890 .0 .0 * 12.0 19.2 62
Cole Canyon 5910 .0 .0 * 22.2 17.9 124
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Basin Index (%) * 92
CHEYENNE RIVER BASIN
Blind Park 6890 .0 .0 * 12.0 19.2 62
North Rapid Creek 6130 -M .0 * -M 16.8 *
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Basin Index (%) * 62
UPPER N. PLATTE
Arapaho Ridge 10960 23.9 4.2 569 35.8 29.9 120
Blackhall Mtn 9820 25.4 -M * 42.8 -M *
Columbine 9160 -M .0 * 36.4 31.9 114
Divide Peak 8880 .0 .0 * 31.8 27.8 114
Joe Wright 10120 19.4 11.1 175 38.3 34.9 110
Laprele Creek 8375 .0 .0 * 20.8 18.4 113
Med Bow 10500 39.3 -M * 45.6 -M *
Never Summer 10280 22.1 13.0 170 26.2 -M *
North French Creek 10130 25.7 16.9 152 39.0 35.6 110
Old Battle 10000 38.6 17.9 216 47.2 44.1 107
Rawah 9020 .1 .0 * 23.3 20.4 114
Sage Creek Basin 7850 -M .0 * 21.1 18.2 116
Sand Lake 10050 29.8 17.9 166 33.3 33.8 99
South Brush Creek 8440 .0 .0 * 18.3 21.4 86
Tower 10500 53.2 32.7 163 58.3 49.9 117
Webber Springs 9250 13.5 .0 * 40.3 33.4 121
Whiskey Park 8950 12.4 .8 1550* 41.1 35.4 116
Willow Creek Pass 9540 6.2 .0 * 22.8 18.9 121
Zirkel 9340 -M .0 * -M 34.8 *
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Basin Index (%) 214* 112
SWEETWATER
Deer Park 9700 9.8 .0 * 26.7 27.6 97
Larsen Creek 9000 .0 .0 * 18.4 -M *
South Pass 9040 5.1 .0 * 20.6 24.0 86
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Basin Index (%) * 92
LOWER N. PLATTE
Casper Mtn. 7900 .0 .0 * 23.4 22.4 104
Laprele Creek 8375 .0 .0 * 20.8 18.4 113
Reno Hill 8400 3.1 .0 * 27.5 23.2 119
Windy Peak 7900 .2 .0 * 17.3 16.6 104
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Basin Index (%) * 110
LARAMIE RIVER
Brooklyn Lake 10240 13.1 1.4 936* 34.5 28.7 120
Cinnabar Park 9574 10.5 .0 * 31.7 31.1 102
Crow Creek 8330 .1 .0 * 17.2 17.5 98
Deadman Hill 10220 12.3 2.8 439 26.0 24.5 106
Rawah 9020 .1 .0 * 23.3 20.4 114
Roach 9700 4.5 .0 * 30.6 26.2 117
Windy Peak 7900 .2 .0 * 17.3 16.6 104
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Basin Index (%) 971* 109
S. PLATTE
Black Mountain 8920 .1 -M * 19.7 -M *
Crow Creek 8330 .1 .0 * 17.2 17.5 98
Deadman Hill 10220 12.3 2.8 439 26.0 24.5 106
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Basin Index (%) 443* 103
LITTLE SNAKE RIVER
Battle Mountain 7440 .0 .0 * 22.0 19.5 113
Divide Peak 8880 .0 .0 * 31.8 27.8 114
Elk River 8700 .0 .0 * 26.4 25.9 102
Little Snake River 8915 10.9 .5 2180* 47.1 36.8 128
Old Battle 10000 38.6 17.9 216 47.2 44.1 107
Sage Creek Basin 7850 -M .0 * 21.1 18.2 116
Sandstone RS 8150 -M .0 * 24.0 23.6 102
Whiskey Park 8950 12.4 .8 1550* 41.1 35.4 116
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Basin Index (%) 322* 113
UPPER GREEN RIVER
Big Sandy Opening 9080 .0 .0 * 19.6 18.4 107
Blind Bull Sum 8650 19.9 7.4 269 25.0 24.8 101
East Rim Divide 7930 .0 .0 * 17.2 15.4 112
Elkhart Park G.S. 9400 2.9 .0 * 20.7 18.4 112
Gros Ventre Summit 8750 -M .0 * 17.5 17.4 101
Gunsight Pass 9820 8.9 .0 * 20.9 19.1 109
Indian Creek 9425 15.1 6.3 240 26.8 28.4 94
Kendall R.S. 7740 .0 .0 * 17.0 18.0 94
Loomis Park 8240 .2 .0 * 22.9 21.9 105
New Fork Lake 8340 .0 .0 * 17.0 15.0 113
Pocket Creek 9360 2.2 -M * 19.3 -M *
Snider Basin 8060 .0 .0 * 18.5 17.8 104
Spring Creek Divide 9000 15.6 7.1 220 30.1 29.6 102
Triple Peak 8500 -M .0 * -M 32.0 *
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Basin Index (%) 301* 104
LOWER GREEN RIVER
Blacks Fork Jct 8869 .1 -M * 18.8 -M *
Buck Pasture 9632 .9 -M * 27.9 -M *
EF Blacks Fork GS 9360 .0 -M * 19.1 -M *
Hams Fork 7840 .0 .0 * 19.6 15.6 126
Hewinta 9500 .0 .0 * 21.6 18.9 114
Hickerson Park 9122 .0 .0 * 17.7 14.6 121
Hole-in-Rock 9168 .0 .0 * 17.6 14.3 123
Indian Creek 9425 15.1 6.3 240 26.8 28.4 94
Kelley R.S. 8180 .3 .0 * 23.9 23.2 103
Spirit Lk 10235 9.8 -M * 24.8 -M *
Steel Creek Park 10158 12.6 6.9 183 27.2 22.4 121
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Basin Index (%) 212* 112
UPPER BEAR RIVER
Bear River RS 8777 .0 -M * 20.9 -M *
Bug Lake 7987 .1 .0 * 32.3 24.9 130
Burts Miller Ranch 8000 .0 -M * 11.5 -M *
Chalk Creek #1 9171 11.6 2.1 552* 38.6 32.5 119
Hayden Fork 9130 .0 .0 * 30.6 27.2 112
Kelley R.S. 8180 .3 .0 * 23.9 23.2 103
Lily Lake 9133 .0 .0 * 22.5 22.7 99
Monte Cristo 8932 19.5 .0 * 42.2 33.3 127
Salt River Summit 7640 .0 .0 * 23.3 21.2 110
Spring Creek Divide 9000 15.6 7.1 220 30.1 29.6 102
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Basin Index (%) 512* 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.
