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 MONDAY: JUNE 3 , 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 25.9 100
Black Bear 8170 33.7 22.3 151 53.5 46.6 115
Blind Bull Sum 8650 22.5 9.9 227 25.1 24.5 102
Cottonwood Creek 7670 2.5 .0 * 34.7 31.7 109
East Rim Divide 7930 .0 .0 * 17.2 15.2 113
Grand Targhee 9260 43.6 39.1 112 41.6 38.8 107
Granite Creek 6770 .0 .0 * 27.5 24.3 113
Grassy Lake 7265 -M 2.2 * -M 44.0 *
Gros Ventre Summit 8750 -M .0 * 17.1 17.2 99
Gunsight Pass 9820 11.0 1.7 647 20.9 18.8 111
Lewis Lake Divide 7850 13.8 9.5 145 45.6 43.0 106
Phillips Bench 8200 14.1 7.9 178 39.0 34.4 113
Salt River Summit 7640 .0 .0 * 23.0 21.0 110
Snake River Station 6920 .0 .0 * 30.5 28.0 109
Spring Creek Divide 9000 18.4 10.1 182 30.1 29.3 103
Thumb Divide 7980 .0 .0 * 24.0 24.0 100
Togwotee Pass 9580 22.1 18.3 121 31.7 31.2 102
Two Ocean Plateau 9240 24.7 23.6 105 31.7 34.6 92
Willow Creek 8080 12.2 2.3 530* 45.6 42.8 107
Younts Peak 8350 -M 1.8 * -M 20.9 *
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Basin Index (%) 151* 106
MADISON-GALLATIN
Black Bear 8170 33.7 22.3 151 53.5 46.6 115
Canyon 7870 .4 .0 * 20.7 21.1 98
Madison Plateau 7750 13.4 4.3 312 35.7 33.5 107
West Yellowstone 6700 .0 .0 * 22.0 18.8 117
Whiskey Creek 6800 .1 .0 * 28.2 26.0 108
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Basin Index (%) 179* 110
YELLOWSTONE
Beartooth Lake 9360 23.6 15.9 148 27.7 25.4 109
Burnt Mtn 5880 .0 .0 * 26.8 21.0 128
Canyon 7870 .4 .0 * 20.7 21.1 98
Cole Creek 7850 18.0 7.2 250 24.0 21.6 111
Evening Star 9200 24.5 16.4 149 38.9 35.2 111
Fisher Creek 9100 31.0 27.2 114 44.4 40.4 110
Northeast Entrance 7350 .0 .0 * 19.2 16.9 114
Parker Peak 9400 22.1 12.3 180 32.2 24.0 134
Sylvan Lake 8420 7.3 4.3 170 34.0 29.5 115
Thumb Divide 7980 .0 .0 * 24.0 24.0 100
Two Ocean Plateau 9240 24.7 23.6 105 31.7 34.6 92
White Mill 8700 18.8 15.5 121 27.6 30.7 90
Wolverine 7650 .0 .0 * 18.4 16.6 111
Younts Peak 8350 -M 1.8 * -M 20.9 *
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Basin Index (%) 139 108
WIND RIVER
Burroughs Creek 8750 .0 -M * 20.9 -M *
Castle Creek 8400 .0 -M * 12.7 -M *
Cold Springs 9630 .1 .0 * 16.3 15.5 105
Deer Park 9700 12.4 1.5 827* 26.6 27.2 98
Hobbs Park 10100 19.5 4.8 406 23.2 20.8 112
Kirwin 9550 7.9 .9 878* 20.1 17.1 118
Little Warm 9370 .0 .0 * 12.2 18.6 66
Owl Creek 8975 2.4 .0 * 16.4 10.9 150
South Pass 9040 8.7 .2 4350* 20.6 23.8 87
St. Lawrence Alt 8620 -M .0 * -M 14.7 *
Togwotee Pass 9580 22.1 18.3 121 31.7 31.2 102
Townsend Creek 8700 6.1 .0 * 21.9 18.4 119
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Basin Index (%) 308* 103
BIGHORN BASIN
Bald Mtn. 9380 21.1 12.6 167 23.4 23.7 99
Bear Trap Meadow 8200 .0 .0 * 14.8 14.1 105
Bone Springs Div 9350 14.1 6.6 214 20.0 22.4 89
Grave Springs 8550 .6 .0 * 17.0 16.3 104
Kirwin 9550 7.9 .9 878* 20.1 17.1 118
Marquette 8760 11.0 -M * 24.3 -M *
Middle Powder 7760 .0 .0 * 19.0 17.5 109
Owl Creek 8975 2.4 .0 * 16.4 10.9 150
Powder River Pass 9480 .2 .0 * 15.1 19.0 79
Shell Creek 9580 14.2 7.5 189 18.0 20.1 90
Timber Creek 7950 .2 .0 * 19.2 13.8 139
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Basin Index (%) 220* 105
SHOSHONE RIVER
Blackwater 9780 27.8 18.0 154 35.2 27.6 128
Evening Star 9200 24.5 16.4 149 38.9 35.2 111
Marquette 8760 11.0 -M * 24.3 -M *
Sylvan Lake 8420 7.3 4.3 170 34.0 29.5 115
Sylvan Road 7120 .0 .0 * 20.5 21.5 95
Younts Peak 8350 -M 1.8 * -M 20.9 *
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Basin Index (%) 154 113
POWDER RIVER
Bear Trap Meadow 8200 .0 .0 * 14.8 14.1 105
Cloud Peak Reservoir 9860 14.5 3.1 468 22.0 21.4 103
Grave Springs 8550 .6 .0 * 17.0 16.3 104
Hansen Sawmill 8360 .1 .0 * 17.3 14.3 121
Middle Powder 7760 .0 .0 * 19.0 17.5 109
Powder River Pass 9480 .2 .0 * 15.1 19.0 79
Soldier Park 8720 1.0 -M * 15.7 -M *
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Basin Index (%) 497* 103
TONGUE RIVER
Big Goose 7990 6.5 .0 * 21.5 18.3 117
Bone Springs Div 9350 14.1 6.6 214 20.0 22.4 89
Burgess Junction 7880 3.5 .0 * 17.9 18.2 98
Dome Lake 8880 8.3 .0 * 20.4 20.4 100
Little Goose 8870 9.9 -M * 15.7 -M *
Sucker Creek 8880 10.1 .0 * 21.6 21.7 100
Tie Creek 6870 .1 .0 * 23.8 18.9 126
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Basin Index (%) 645* 104
BELLE FOURCHE
Blind Park 6890 .0 .0 * 11.8 18.8 63
Cole Canyon 5910 .0 .0 * 22.2 17.1 130
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Basin Index (%) * 95
CHEYENNE RIVER BASIN
Blind Park 6890 .0 .0 * 11.8 18.8 63
North Rapid Creek 6130 -M .0 * -M 16.4 *
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Basin Index (%) * 63
UPPER N. PLATTE
Arapaho Ridge 10960 25.5 6.2 411 35.7 29.5 121
Blackhall Mtn 9820 28.7 -M * 42.6 -M *
Columbine 9160 2.1 .0 * 36.2 31.6 115
Divide Peak 8880 1.6 .0 * 31.4 27.6 114
Joe Wright 10120 21.2 13.0 163 38.3 34.6 111
Laprele Creek 8375 .0 .0 * 20.8 18.2 114
Med Bow 10500 41.8 -M * 45.4 -M *
Never Summer 10280 23.6 14.7 161 25.9 -M *
North French Creek 10130 29.3 18.8 156 39.0 35.2 111
Old Battle 10000 40.6 22.0 185 47.1 43.7 108
Rawah 9020 .1 .0 * 23.2 19.9 117
Sage Creek Basin 7850 -M .0 * 21.1 18.0 117
Sand Lake 10050 32.1 19.6 164 33.0 33.4 99
South Brush Creek 8440 .0 .0 * 18.0 21.2 85
Tower 10500 56.7 35.0 162 58.1 49.5 117
Webber Springs 9250 16.2 .0 * 40.2 33.2 121
Whiskey Park 8950 17.7 4.1 432 40.8 35.1 116
Willow Creek Pass 9540 9.6 .0 * 22.9 18.7 122
Zirkel 9340 12.5 .0 * 46.1 34.4 134
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Basin Index (%) 216* 114
SWEETWATER
Deer Park 9700 12.4 1.5 827* 26.6 27.2 98
Larsen Creek 9000 .0 .0 * 18.3 -M *
South Pass 9040 8.7 .2 4350* 20.6 23.8 87
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Basin Index (%) 1241* 93
LOWER N. PLATTE
Casper Mtn. 7900 2.6 .0 * 23.1 21.9 105
Laprele Creek 8375 .0 .0 * 20.8 18.2 114
Reno Hill 8400 7.6 .0 * 27.2 22.9 119
Windy Peak 7900 .1 .0 * 16.9 16.3 104
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Basin Index (%) * 111
LARAMIE RIVER
Brooklyn Lake 10240 16.7 3.2 522 34.3 28.5 120
Cinnabar Park 9574 13.5 .0 * 31.5 30.6 103
Crow Creek 8330 .1 .0 * 17.1 16.4 104
Deadman Hill 10220 15.4 5.7 270 26.0 24.2 107
Rawah 9020 .1 .0 * 23.2 19.9 117
Roach 9700 7.7 1.0 770* 30.3 25.9 117
Windy Peak 7900 .1 .0 * 16.9 16.3 104
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Basin Index (%) 541* 111
S. PLATTE
Black Mountain 8920 .1 -M * 19.7 -M *
Crow Creek 8330 .1 .0 * 17.1 16.4 104
Deadman Hill 10220 15.4 5.7 270 26.0 24.2 107
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Basin Index (%) 272* 106
LITTLE SNAKE RIVER
Battle Mountain 7440 .0 .0 * 22.2 19.3 115
Divide Peak 8880 1.6 .0 * 31.4 27.6 114
Elk River 8700 .0 .0 * 26.3 25.6 103
Little Snake River 8915 14.8 1.0 1480* 46.8 36.3 129
Old Battle 10000 40.6 22.0 185 47.1 43.7 108
Sage Creek Basin 7850 -M .0 * 21.1 18.0 117
Sandstone RS 8150 -M .0 * 23.9 23.4 102
Whiskey Park 8950 17.7 4.1 432 40.8 35.1 116
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Basin Index (%) 276* 113
UPPER GREEN RIVER
Big Sandy Opening 9080 1.0 .0 * 19.7 18.0 109
Blind Bull Sum 8650 22.5 9.9 227 25.1 24.5 102
East Rim Divide 7930 .0 .0 * 17.2 15.2 113
Elkhart Park G.S. 9400 6.7 .0 * 20.8 18.1 115
Gros Ventre Summit 8750 -M .0 * 17.1 17.2 99
Gunsight Pass 9820 11.0 1.7 647 20.9 18.8 111
Indian Creek 9425 18.1 9.1 199 26.7 28.2 95
Kendall R.S. 7740 .1 .0 * 16.8 17.8 94
Loomis Park 8240 .3 .0 * 22.9 21.6 106
New Fork Lake 8340 .0 .0 * 16.6 14.7 113
Pocket Creek 9360 6.0 -M * 19.3 -M *
Snider Basin 8060 .0 .0 * 18.4 17.6 105
Spring Creek Divide 9000 18.4 10.1 182 30.1 29.3 103
Triple Peak 8500 -M .0 * -M 31.7 *
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Basin Index (%) 254* 105
LOWER GREEN RIVER
Blacks Fork Jct 8869 .0 -M * 18.7 -M *
Buck Pasture 9632 4.6 -M * 27.6 -M *
EF Blacks Fork GS 9360 .1 -M * 19.1 -M *
Hams Fork 7840 .0 .0 * 19.5 15.4 127
Hewinta 9500 .0 .0 * 21.2 18.8 113
Hickerson Park 9122 .0 .0 * 17.7 14.5 122
Hole-in-Rock 9168 .0 .0 * 17.4 14.1 123
Indian Creek 9425 18.1 9.1 199 26.7 28.2 95
Kelley R.S. 8180 .4 .0 * 23.9 23.0 104
Spirit Lk 10235 12.2 -M * 24.8 -M *
Steel Creek Park 10158 14.9 8.7 171 27.1 22.3 122
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Basin Index (%) 188* 113
UPPER BEAR RIVER
Bear River RS 8777 .0 -M * 20.8 -M *
Bug Lake 7987 4.2 .0 * 32.3 24.6 131
Burts Miller Ranch 8000 .0 -M * 11.5 -M *
Chalk Creek #1 9171 15.9 4.3 370 38.7 32.2 120
Hayden Fork 9130 .0 .0 * 30.7 26.9 114
Kelley R.S. 8180 .4 .0 * 23.9 23.0 104
Lily Lake 9133 .0 .0 * 22.4 22.5 100
Monte Cristo 8932 24.0 2.6 923* 42.2 33.0 128
Salt River Summit 7640 .0 .0 * 23.0 21.0 110
Spring Creek Divide 9000 18.4 10.1 182 30.1 29.3 103
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Basin Index (%) 370* 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.
