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 FRIDAY: JUNE 7 , 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 * 26.3 26.3 100
Black Bear 8170 29.1 18.4 158 54.3 47.3 115
Blind Bull Sum 8650 18.8 6.7 281 25.1 24.9 101
Cottonwood Creek 7670 .0 .0 * 35.0 32.2 109
East Rim Divide 7930 .0 .0 * 17.4 15.5 112
Grand Targhee 9260 39.3 37.5 105 42.2 40.3 105
Granite Creek 6770 .2 .0 * 28.0 24.7 113
Grassy Lake 7265 -M .0 * -M 44.7 *
Gros Ventre Summit 8750 -M .0 * 17.3 17.5 99
Gunsight Pass 9820 8.4 .0 * 21.1 19.2 110
Lewis Lake Divide 7850 7.7 4.7 164 45.6 43.5 105
Phillips Bench 8200 10.7 4.6 233 39.3 35.0 112
Salt River Summit 7640 .0 .0 * 23.5 21.3 110
Snake River Station 6920 .1 .0 * 30.8 28.5 108
Spring Creek Divide 9000 14.6 6.0 243 30.6 29.7 103
Thumb Divide 7980 .1 .0 * 24.3 24.5 99
Togwotee Pass 9580 18.3 17.8 103 31.8 31.7 100
Two Ocean Plateau 9240 20.4 21.6 94 31.8 35.2 90
Willow Creek 8080 5.2 .0 * 45.7 43.5 105
Younts Peak 8350 -M .8 * -M 21.3 *
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Basin Index (%) 147* 105
MADISON-GALLATIN
Black Bear 8170 29.1 18.4 158 54.3 47.3 115
Canyon 7870 .5 .0 * 20.9 21.6 97
Madison Plateau 7750 8.8 1.5 587* 37.0 34.0 109
West Yellowstone 6700 .0 .0 * 22.5 19.4 116
Whiskey Creek 6800 .0 .0 * 28.7 26.5 108
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Basin Index (%) 193* 110
YELLOWSTONE
Beartooth Lake 9360 20.0 13.6 147 27.8 25.9 107
Burnt Mtn 5880 .0 .0 * 27.0 21.8 124
Canyon 7870 .5 .0 * 20.9 21.6 97
Cole Creek 7850 13.1 3.5 374 24.0 22.2 108
Evening Star 9200 20.7 14.1 147 39.1 35.9 109
Fisher Creek 9100 28.8 24.4 118 44.6 41.1 109
Northeast Entrance 7350 .1 .0 * 19.3 17.4 111
Parker Peak 9400 17.4 9.9 176 32.4 24.4 133
Sylvan Lake 8420 2.8 1.3 215* 34.2 30.3 113
Thumb Divide 7980 .1 .0 * 24.3 24.5 99
Two Ocean Plateau 9240 20.4 21.6 94 31.8 35.2 90
White Mill 8700 14.5 13.0 112 27.6 31.3 88
Wolverine 7650 .0 .0 * 18.5 17.0 109
Younts Peak 8350 -M .8 * -M 21.3 *
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Basin Index (%) 136 107
WIND RIVER
Burroughs Creek 8750 .0 -M * 21.6 -M *
Castle Creek 8400 .0 -M * 12.8 -M *
Cold Springs 9630 .0 .0 * 16.8 15.9 106
Deer Park 9700 8.4 .0 * 26.7 27.7 96
Hobbs Park 10100 16.6 2.3 722 23.6 21.1 112
Kirwin 9550 3.7 .3 1233* 20.2 17.6 115
Little Warm 9370 .0 .0 * 12.4 19.0 65
Owl Creek 8975 .0 .0 * 16.4 11.3 145
South Pass 9040 3.4 .0 * 20.7 24.1 86
St. Lawrence Alt 8620 -M .0 * -M 15.1 *
Togwotee Pass 9580 18.3 17.8 103 31.8 31.7 100
Townsend Creek 8700 .8 .0 * 22.3 18.8 119
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Basin Index (%) 251* 102
BIGHORN BASIN
Bald Mtn. 9380 17.9 9.9 181 23.4 24.1 97
Bear Trap Meadow 8200 .0 .0 * 15.1 14.5 104
Bone Springs Div 9350 9.3 3.5 266 20.1 23.0 87
Grave Springs 8550 .0 .0 * 17.2 16.6 104
Kirwin 9550 3.7 .3 1233* 20.2 17.6 115
Marquette 8760 6.8 -M * 24.4 -M *
Middle Powder 7760 .0 .0 * 19.4 17.9 108
Owl Creek 8975 .0 .0 * 16.4 11.3 145
Powder River Pass 9480 .0 .0 * 15.1 19.5 77
Shell Creek 9580 9.8 5.1 192 18.0 20.6 87
Timber Creek 7950 .1 .0 * 19.1 14.3 134
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Basin Index (%) 217* 103
SHOSHONE RIVER
Blackwater 9780 23.3 16.0 146 35.3 28.1 126
Evening Star 9200 20.7 14.1 147 39.1 35.9 109
Marquette 8760 6.8 -M * 24.4 -M *
Sylvan Lake 8420 2.8 1.3 215* 34.2 30.3 113
Sylvan Road 7120 .0 .0 * 20.6 22.0 94
Younts Peak 8350 -M .8 * -M 21.3 *
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Basin Index (%) 149* 111
POWDER RIVER
Bear Trap Meadow 8200 .0 .0 * 15.1 14.5 104
Cloud Peak Reservoir 9860 10.5 1.2 875* 22.1 21.9 101
Grave Springs 8550 .0 .0 * 17.2 16.6 104
Hansen Sawmill 8360 .0 .0 * 17.4 14.9 117
Middle Powder 7760 .0 .0 * 19.4 17.9 108
Powder River Pass 9480 .0 .0 * 15.1 19.5 77
Soldier Park 8720 .0 -M * 15.7 -M *
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Basin Index (%) 875* 101
TONGUE RIVER
Big Goose 7990 .9 .0 * 21.3 18.8 113
Bone Springs Div 9350 9.3 3.5 266 20.1 23.0 87
Burgess Junction 7880 .0 .0 * 18.6 18.7 99
Dome Lake 8880 5.0 .0 * 21.9 20.9 105
Little Goose 8870 4.7 -M * 15.7 -M *
Sucker Creek 8880 5.0 .0 * 22.2 22.2 100
Tie Creek 6870 .0 .0 * 23.7 19.4 122
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Basin Index (%) 577* 104
BELLE FOURCHE
Blind Park 6890 .1 .0 * 12.0 19.3 62
Cole Canyon 5910 .0 .0 * 22.2 18.0 123
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Basin Index (%) * 92
CHEYENNE RIVER BASIN
Blind Park 6890 .1 .0 * 12.0 19.3 62
North Rapid Creek 6130 -M .0 * -M 16.9 *
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Basin Index (%) * 62
UPPER N. PLATTE
Arapaho Ridge 10960 23.1 3.6 642 35.9 30.0 120
Blackhall Mtn 9820 23.6 -M * 42.8 -M *
Columbine 9160 -M .0 * 36.4 32.0 114
Divide Peak 8880 .0 .0 * 31.8 27.9 114
Joe Wright 10120 18.3 10.4 176 38.2 35.1 109
Laprele Creek 8375 .0 .0 * 21.0 18.5 114
Med Bow 10500 38.2 -M * 45.5 -M *
Never Summer 10280 21.2 12.4 171 26.2 -M *
North French Creek 10130 24.5 16.4 149 39.0 35.7 109
Old Battle 10000 37.4 16.2 231 47.4 44.2 107
Rawah 9020 .1 .0 * 23.3 20.4 114
Sage Creek Basin 7850 -M .0 * 21.1 18.2 116
Sand Lake 10050 28.7 17.2 167 33.3 34.0 98
South Brush Creek 8440 .0 .0 * 18.4 21.5 86
Tower 10500 51.1 31.8 161 58.5 50.1 117
Webber Springs 9250 12.0 .0 * 40.3 33.6 120
Whiskey Park 8950 -M .2 * -M 35.5 *
Willow Creek Pass 9540 4.8 .0 * 22.8 19.0 120
Zirkel 9340 -M .0 * 46.3 34.9 133
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Basin Index (%) 205* 113
SWEETWATER
Deer Park 9700 8.4 .0 * 26.7 27.7 96
Larsen Creek 9000 .1 .0 * 18.6 -M *
South Pass 9040 3.4 .0 * 20.7 24.1 86
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Basin Index (%) * 92
LOWER N. PLATTE
Casper Mtn. 7900 .0 .0 * 23.7 22.5 105
Laprele Creek 8375 .0 .0 * 21.0 18.5 114
Reno Hill 8400 1.5 .0 * 27.7 23.3 119
Windy Peak 7900 .0 .0 * 17.6 16.7 105
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Basin Index (%) * 111
LARAMIE RIVER
Brooklyn Lake 10240 11.5 1.0 1150* 34.5 28.8 120
Cinnabar Park 9574 9.5 .0 * 31.7 31.2 102
Crow Creek 8330 .1 .0 * 17.2 17.5 98
Deadman Hill 10220 11.1 2.0 555 26.0 24.6 106
Rawah 9020 .1 .0 * 23.3 20.4 114
Roach 9700 2.8 .0 * 30.7 26.4 116
Windy Peak 7900 .0 .0 * 17.6 16.7 105
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Basin Index (%) 1170* 109
S. PLATTE
Black Mountain 8920 .0 -M * 19.7 -M *
Crow Creek 8330 .1 .0 * 17.2 17.5 98
Deadman Hill 10220 11.1 2.0 555 26.0 24.6 106
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Basin Index (%) 560* 103
LITTLE SNAKE RIVER
Battle Mountain 7440 .0 .0 * 21.9 19.6 112
Divide Peak 8880 .0 .0 * 31.8 27.9 114
Elk River 8700 .0 .0 * 26.5 26.0 102
Little Snake River 8915 9.2 .4 2300* 47.1 37.0 127
Old Battle 10000 37.4 16.2 231 47.4 44.2 107
Sage Creek Basin 7850 -M .0 * 21.1 18.2 116
Sandstone RS 8150 -M .0 * 24.1 23.7 102
Whiskey Park 8950 -M .2 * -M 35.5 *
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Basin Index (%) 281* 112
UPPER GREEN RIVER
Big Sandy Opening 9080 .0 .0 * 19.8 18.5 107
Blind Bull Sum 8650 18.8 6.7 281 25.1 24.9 101
East Rim Divide 7930 .0 .0 * 17.4 15.5 112
Elkhart Park G.S. 9400 1.2 .0 * 20.6 18.5 111
Gros Ventre Summit 8750 -M .0 * 17.3 17.5 99
Gunsight Pass 9820 8.4 .0 * 21.1 19.2 110
Indian Creek 9425 14.1 5.5 256 27.0 28.5 95
Kendall R.S. 7740 .0 .0 * 16.8 18.1 93
Loomis Park 8240 .3 .0 * 23.2 22.0 105
New Fork Lake 8340 .0 .0 * 17.1 15.1 113
Pocket Creek 9360 .9 -M * 19.5 -M *
Snider Basin 8060 .0 .0 * 18.8 17.9 105
Spring Creek Divide 9000 14.6 6.0 243 30.6 29.7 103
Triple Peak 8500 -M .0 * -M 32.0 *
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Basin Index (%) 315* 104
LOWER GREEN RIVER
Blacks Fork Jct 8869 .1 -M * 19.2 -M *
Buck Pasture 9632 .3 -M * 28.5 -M *
EF Blacks Fork GS 9360 .1 -M * 19.6 -M *
Hams Fork 7840 .0 .0 * 19.9 15.7 127
Hewinta 9500 .0 .0 * 22.1 19.0 116
Hickerson Park 9122 .0 .0 * 17.8 14.7 121
Hole-in-Rock 9168 .1 .0 * 17.7 14.3 124
Indian Creek 9425 14.1 5.5 256 27.0 28.5 95
Kelley R.S. 8180 .4 .0 * 24.2 23.3 104
Spirit Lk 10235 8.8 -M * 24.9 -M *
Steel Creek Park 10158 11.9 6.0 198 27.6 22.5 123
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Basin Index (%) 230* 113
UPPER BEAR RIVER
Bear River RS 8777 .0 -M * 21.3 -M *
Bug Lake 7987 .1 .0 * 32.6 25.0 130
Burts Miller Ranch 8000 .1 -M * 11.7 -M *
Chalk Creek #1 9171 9.7 1.4 693* 38.9 32.6 119
Hayden Fork 9130 .0 .0 * 31.2 27.2 115
Kelley R.S. 8180 .4 .0 * 24.2 23.3 104
Lily Lake 9133 .0 .0 * 22.7 22.8 100
Monte Cristo 8932 18.1 .0 * 42.4 33.4 127
Salt River Summit 7640 .0 .0 * 23.5 21.3 110
Spring Creek Divide 9000 14.6 6.0 243 30.6 29.7 103
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Basin Index (%) 580* 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.