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 SATURDAY: JUNE 4 , 2016
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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 7030 .0 .0 * 23.3 26.0 90
Black Bear 8170 9.9 21.2 47 41.1 46.8 88
Blind Bull Sum 8650 12.0 9.0 133 20.8 24.6 85
Cottonwood Creek 7670 .0 .0 * 34.6 31.8 109
East Rim Divide 7930 .0 .0 * 14.7 15.3 96
Grand Targhee 9260 28.8 38.6 75 38.9 39.0 100
Granite Creek 6770 .0 .0 * 22.2 24.5 91
Grassy Lake 7265 .0 .9 0* 41.7 44.2 94
Gros Ventre Summit 8750 .0 .0 * 14.0 17.3 81
Gunsight Pass 9820 3.7 1.0 370* 19.6 18.9 104
Lewis Lake Divide 7850 .0 8.4 0 36.0 43.1 84
Phillips Bench 8200 .0 7.1 0 31.1 34.7 90
Salt River Summit 7760 .0 .0 * 22.0 21.0 105
Snake River Station 6920 .0 .0 * 26.1 28.1 93
Spring Creek Divide 9000 13.9 9.2 151 31.1 29.4 106
Thumb Divide 7980 .0 .0 * 18.4 24.2 76
Togwotee Pass 9580 12.0 18.1 66 30.6 31.3 98
Two Ocean Plateau 9240 -M 23.0 * -M 34.8 *
Willow Creek 8380 .0 1.5 0* 42.1 43.0 98
Younts Peak 8350 .0 1.4 0* 17.9 21.0 85
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Basin Index (%) 69* 93
MADISON-GALLATIN
Black Bear 8170 9.9 21.2 47 41.1 46.8 88
Canyon 7870 .0 .0 * 16.9 21.2 80
Madison Plateau 7750 .1 3.6 3 27.4 33.6 82
West Yellowstone 6700 .0 .0 * 16.5 19.0 87
Whiskey Creek 6800 .0 .0 * 20.8 26.1 80
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Basin Index (%) 40* 84
YELLOWSTONE
Beartooth Lake 9360 10.7 15.3 70 21.8 25.5 85
Burnt Mtn 5880 .0 .0 * 18.2 21.0 87
Canyon 7870 .0 .0 * 16.9 21.2 80
Cole Creek 7850 1.5 6.1 25 -M 21.7 *
Evening Star 9200 10.5 15.8 66 33.3 35.3 94
Fisher Creek 9100 17.2 26.6 65 31.3 40.6 77
Northeast Entrance 7350 .0 .0 * 14.7 17.0 86
Parker Peak 9400 2.7 11.6 23 25.5 24.1 106
Sylvan Lake 8420 .0 3.3 0 29.0 29.7 98
Thumb Divide 7980 .0 .0 * 18.4 24.2 76
Two Ocean Plateau 9240 -M 23.0 * -M 34.8 *
White Mill 8700 6.7 14.9 45 25.7 30.8 83
Wolverine 7650 .0 .0 * 14.5 16.7 87
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Basin Index (%) 53 87
WIND RIVER
Burroughs Creek 8750 .0 -M * 20.1 -M *
Castle Creek 8400 .0 -M * 11.2 -M *
Cold Springs 9630 .1 .0 * 18.4 15.7 117
Deer Park 9700 9.3 .8 1162* 28.3 27.3 104
Hobbs Park 10100 13.4 4.2 319 28.0 20.9 134
Kirwin 9550 .1 .6 17* 19.8 17.3 114
Little Warm 9370 .0 .0 * 16.4 18.7 88
Owl Creek 8975 .1 .0 * 13.4 11.0 122
South Pass 9040 2.0 .0 * 22.6 23.9 95
St. Lawrence Alt 8620 .0 .0 * 19.7 14.8 133
Togwotee Pass 9580 12.0 18.1 66 30.6 31.3 98
Townsend Creek 8700 .0 .0 * 24.5 18.5 132
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Basin Index (%) 156* 111
BIGHORN BASIN
Bald Mtn. 9380 6.1 12.0 51 18.4 23.8 77
Bear Trap Meadow 8200 .0 .0 * 12.8 14.1 91
Bone Springs Div 9350 1.2 5.6 21 17.0 22.5 76
Grave Springs 8550 .0 .0 * 12.3 16.4 75
Kirwin 9550 .1 .6 17* 19.8 17.3 114
Marquette 8760 .0 -M * 16.1 -M *
Middle Powder 7760 .0 .0 * 15.1 17.6 86
Owl Creek 8975 .1 .0 * 13.4 11.0 122
Powder River Pass 9480 .0 .0 * 15.5 19.1 81
Shell Creek 9580 3.8 6.9 55 15.4 20.2 76
Timber Creek 7950 .0 .0 * 17.9 13.9 129
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Basin Index (%) 45* 90
SHOSHONE RIVER
Blackwater 9780 15.7 17.4 90 30.1 27.7 109
Evening Star 9200 10.5 15.8 66 33.3 35.3 94
Marquette 8760 .0 -M * 16.1 -M *
Sylvan Road 7120 .0 .0 * 18.8 21.6 87
Younts Peak 8350 .0 1.4 0* 17.9 21.0 85
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Basin Index (%) 76* 95
POWDER RIVER
Bear Trap Meadow 8200 .0 .0 * 12.8 14.1 91
Cloud Peak Reservoir 9860 3.3 2.3 143 20.6 21.5 96
Grave Springs 8550 .0 .0 * 12.3 16.4 75
Hansen Sawmill 8360 .0 .0 * 14.3 14.5 99
Middle Powder 7760 .0 .0 * 15.1 17.6 86
Powder River Pass 9480 .0 .0 * 15.5 19.1 81
Soldier Park 8720 .0 -M * 13.8 -M *
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Basin Index (%) 143* 88
TONGUE RIVER
Big Goose 7990 .1 .0 * 16.4 18.4 89
Bone Springs Div 9350 1.2 5.6 21 17.0 22.5 76
Burgess Junction 7880 .0 .0 * 16.8 18.3 92
Dome Lake 8880 .4 .0 * 19.5 20.5 95
Little Goose 8870 .0 -M * 19.0 -M *
Sucker Creek 8880 .0 .0 * 18.7 21.8 86
Tie Creek 6870 -M .0 * 15.3 18.9 81
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Basin Index (%) 30* 86
BELLE FOURCHE
Cole Canyon 5910 .2 .0 * 12.4 17.3 72
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Basin Index (%) * 72
CHEYENNE RIVER BASIN
Blind Park 6890 .0 .0 * 13.6 18.9 72
North Rapid Creek 6130 .0 .0 * 10.9 16.6 66
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Basin Index (%) * 69
UPPER N. PLATTE
Arapaho Ridge 10960 19.3 5.4 357 33.3 29.6 112
Blackhall Mtn 9820 22.2 -M * 41.2 -M *
Columbine 9160 .0 .0 * 33.2 31.8 104
Divide Peak 8880 .0 .0 * 35.2 27.6 128
Joe Wright 10120 -M 12.4 * -M 34.7 *
Laprele Creek 8375 .0 .0 * 18.3 18.3 100
Med Bow 10500 35.2 -M * 43.4 -M *
North French Creek 10130 22.0 18.1 122 38.0 35.3 108
Never Summer 10280 17.7 14.2 125 23.7 -M *
Old Battle 10000 31.3 20.8 150 42.9 43.8 98
Rawah 9020 .0 .0 * 25.7 20.0 128
Sage Creek Basin 7850 -M .0 * 18.7 18.0 104
Sand Lake 10050 27.7 19.1 145 37.4 33.6 111
South Brush Creek 8440 .0 .0 * 23.3 21.3 109
Tower 10500 35.2 34.3 103 50.4 49.6 102
Webber Springs 9250 8.8 .0 * 36.2 33.3 109
Willow Creek Pass 9540 .9 .0 * 21.6 18.8 115
Zirkel 9340 .0 .0 * 39.0 34.5 113
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Basin Index (%) 146* 109
SWEETWATER
Deer Park 9700 9.3 .8 1162* 28.3 27.3 104
Larsen Creek 9000 .0 .0 * 19.3 -M *
South Pass 9040 2.0 .0 * 22.6 23.9 95
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Basin Index (%) 1412* 99
LOWER N. PLATTE
Casper Mtn. 7900 .0 .0 * 23.5 22.2 106
Laprele Creek 8375 .0 .0 * 18.3 18.3 100
Reno Hill 8400 .1 .0 * 27.2 23.0 118
Windy Peak 7900 .0 .0 * 19.0 16.4 116
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Basin Index (%) * 110
LARAMIE RIVER
Brooklyn Lake 10240 9.7 2.4 404 32.2 28.6 113
Cinnabar Park 9574 10.9 .0 * 32.2 30.8 105
Crow Creek 8330 .2 .0 * 24.0 16.7 144
Deadman Hill 10220 12.0 4.7 255 27.1 24.3 112
Rawah 9020 .0 .0 * 25.7 20.0 128
Roach 9700 -M .5 * 32.0 26.0 123
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Basin Index (%) 462* 118
S. PLATTE
Black Mountain 8920 .0 -M * 24.5 -M *
Crow Creek 8330 .2 .0 * 24.0 16.7 144
Deadman Hill 10220 12.0 4.7 255 27.1 24.3 112
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Basin Index (%) 260* 125
LITTLE SNAKE RIVER
Battle Mountain 7440 .0 .0 * 24.7 19.4 127
Divide Peak 8880 .0 .0 * 35.2 27.6 128
Elk River 8700 .0 .0 * 24.3 25.7 95
Little Snake River 8915 8.1 .7 1157* 43.5 36.5 119
Old Battle 10000 31.3 20.8 150 42.9 43.8 98
Sage Creek Basin 7850 -M .0 * 18.7 18.0 104
Sandstone RS 8150 -M .0 * 21.6 23.5 92
Whiskey Park 8950 12.2 3.1 394 39.9 35.2 113
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Basin Index (%) 210* 109
UPPER GREEN RIVER
Big Sandy Opening 9080 .0 .0 * 18.9 18.2 104
Blind Bull Sum 8650 12.0 9.0 133 20.8 24.6 85
East Rim Divide 7930 .0 .0 * 14.7 15.3 96
Elkhart Park G.S. 9400 .0 .0 * 17.3 18.2 95
Gros Ventre Summit 8750 .0 .0 * 14.0 17.3 81
Gunsight Pass 9820 3.7 1.0 370* 19.6 18.9 104
Kendall R.S. 7740 -M .0 * 15.9 17.9 89
Loomis Park 8240 .0 .0 * 20.4 21.8 94
New Fork Lake 8340 .1 .0 * 16.2 14.8 109
Pocket Creek 9360 -M -M * 16.4 -M *
Snider Basin 8060 .0 .0 * 19.9 17.7 112
Spring Creek Divide 9000 13.9 9.2 151 31.1 29.4 106
Triple Peak 8500 .0 .0 * 33.5 31.8 105
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Basin Index (%) 155* 99
LOWER GREEN RIVER
Blacks Fork Jct 8870 .2 -M * 18.5 -M *
Buck Pasture 9700 .0 -M * 25.0 -M *
EF Blacks Fork GS 9360 .0 -M * 20.5 -M *
Hams Fork 7840 .0 .0 * 17.0 15.5 110
Hewinta 9519 .0 .0 * 20.3 18.8 108
Hickerson Park 9145 .0 .0 * 20.9 14.5 144
Hole-in-Rock 9150 .0 .0 * 20.8 14.2 146
Indian Creek 9425 8.1 8.2 99 26.3 28.3 93
Kelley R.S. 8180 -M .0 * 23.2 23.1 100
Spirit Lk 10235 7.7 -M * 28.6 -M *
Steel Creek Park 10200 13.2 8.2 161 28.9 22.3 130
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Basin Index (%) 130* 115
UPPER BEAR RIVER
Bear River RS 8777 .0 -M * 18.7 -M *
Bug Lake 7950 .3 .0 * 24.8 24.7 100
Burts Miller Ranch 8000 .0 -M * 9.9 -M *
Chalk Creek #1 8993 .1 3.6 3 29.4 32.3 91
Hayden Fork 9212 .0 .0 * 27.5 27.0 102
Kelley R.S. 8180 -M .0 * 23.2 23.1 100
Lily Lake 9156 .0 .0 * 21.8 22.6 96
Monte Cristo 8960 3.3 1.8 183* 35.7 33.1 108
Salt River Summit 7760 .0 .0 * 22.0 21.0 105
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Basin Index (%) 69* 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.
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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.
