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 WEDNESDAY: JUNE 5 , 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 31.8 20.2 157 54.1 47.0 115
Blind Bull Sum 8650 21.1 8.2 257 25.1 24.7 102
Cottonwood Creek 7670 .1 .0 * 34.8 31.9 109
East Rim Divide 7930 .0 .0 * 17.2 15.4 112
Grand Targhee 9260 41.6 38.3 109 41.8 39.3 106
Granite Creek 6770 .0 .0 * 27.9 24.6 113
Grassy Lake 7265 -M .3 * -M 44.3 *
Gros Ventre Summit 8750 -M .0 * 17.5 17.3 101
Gunsight Pass 9820 9.9 .4 2475* 21.0 19.0 111
Lewis Lake Divide 7850 10.4 7.3 142 45.5 43.2 105
Phillips Bench 8200 12.3 6.3 195 39.0 34.8 112
Salt River Summit 7640 .0 .0 * 23.3 21.2 110
Snake River Station 6920 .0 .0 * 30.5 28.2 108
Spring Creek Divide 9000 16.7 8.2 204 30.2 29.5 102
Thumb Divide 7980 .1 .0 * 23.9 24.2 99
Togwotee Pass 9580 19.8 18.0 110 31.7 31.4 101
Two Ocean Plateau 9240 22.5 22.5 100 31.8 34.8 91
Willow Creek 8080 9.0 .4 2250* 45.7 43.2 106
Younts Peak 8350 -M 1.1 * -M 21.1 *
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Basin Index (%) 150* 106
MADISON-GALLATIN
Black Bear 8170 31.8 20.2 157 54.1 47.0 115
Canyon 7870 .3 .0 * 20.8 21.3 98
Madison Plateau 7750 11.1 2.9 383 36.0 33.8 107
West Yellowstone 6700 .0 .0 * 22.1 19.2 115
Whiskey Creek 6800 .0 .0 * 28.7 26.3 109
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Basin Index (%) 187* 110
YELLOWSTONE
Beartooth Lake 9360 22.2 14.7 151 27.8 25.6 109
Burnt Mtn 5880 .0 .0 * 26.9 21.2 127
Canyon 7870 .3 .0 * 20.8 21.3 98
Cole Creek 7850 15.8 5.3 298 24.1 21.8 111
Evening Star 9200 22.9 15.2 151 39.0 35.5 110
Fisher Creek 9100 30.2 25.9 117 44.4 40.7 109
Northeast Entrance 7350 .0 .0 * 19.2 17.1 112
Parker Peak 9400 19.7 11.0 179 32.3 24.2 133
Sylvan Lake 8420 5.1 2.5 204 34.1 29.8 114
Thumb Divide 7980 .1 .0 * 23.9 24.2 99
Two Ocean Plateau 9240 22.5 22.5 100 31.8 34.8 91
White Mill 8700 16.8 14.2 118 27.6 31.0 89
Wolverine 7650 .0 .0 * 18.5 16.8 110
Younts Peak 8350 -M 1.1 * -M 21.1 *
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Basin Index (%) 140 108
WIND RIVER
Burroughs Creek 8750 .0 -M * 21.3 -M *
Castle Creek 8400 .0 -M * 12.7 -M *
Cold Springs 9630 .0 .0 * 16.6 15.8 105
Deer Park 9700 10.6 .1 10600* 26.7 27.5 97
Hobbs Park 10100 18.2 3.6 506 23.4 21.0 111
Kirwin 9550 5.7 .5 1140* 20.1 17.4 116
Little Warm 9370 .0 .0 * 12.3 18.8 65
Owl Creek 8975 .5 .0 * 16.4 11.1 148
South Pass 9040 6.5 .0 * 20.6 24.0 86
St. Lawrence Alt 8620 -M .0 * -M 15.0 *
Togwotee Pass 9580 19.8 18.0 110 31.7 31.4 101
Townsend Creek 8700 3.6 .0 * 22.3 18.6 120
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Basin Index (%) 292* 102
BIGHORN BASIN
Bald Mtn. 9380 19.3 11.3 171 23.5 23.9 98
Bear Trap Meadow 8200 .0 .0 * 14.8 14.2 104
Bone Springs Div 9350 11.9 4.9 243 20.0 22.7 88
Grave Springs 8550 .0 .0 * 16.9 16.4 103
Kirwin 9550 5.7 .5 1140* 20.1 17.4 116
Marquette 8760 9.2 -M * 24.3 -M *
Middle Powder 7760 .0 .0 * 19.2 17.7 108
Owl Creek 8975 .5 .0 * 16.4 11.1 148
Powder River Pass 9480 .0 .0 * 15.1 19.2 79
Shell Creek 9580 12.1 6.3 192 18.0 20.3 89
Timber Creek 7950 .1 .0 * 19.2 14.0 137
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Basin Index (%) 216* 104
SHOSHONE RIVER
Blackwater 9780 25.7 16.8 153 35.3 27.8 127
Evening Star 9200 22.9 15.2 151 39.0 35.5 110
Marquette 8760 9.2 -M * 24.3 -M *
Sylvan Lake 8420 5.1 2.5 204 34.1 29.8 114
Sylvan Road 7120 .0 .0 * 20.5 21.7 94
Younts Peak 8350 -M 1.1 * -M 21.1 *
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Basin Index (%) 156 112
POWDER RIVER
Bear Trap Meadow 8200 .0 .0 * 14.8 14.2 104
Cloud Peak Reservoir 9860 12.6 1.9 663 22.0 21.6 102
Grave Springs 8550 .0 .0 * 16.9 16.4 103
Hansen Sawmill 8360 .0 .0 * 17.4 14.6 119
Middle Powder 7760 .0 .0 * 19.2 17.7 108
Powder River Pass 9480 .0 .0 * 15.1 19.2 79
Soldier Park 8720 .0 -M * 15.7 -M *
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Basin Index (%) 663* 102
TONGUE RIVER
Big Goose 7990 3.9 .0 * 21.4 18.5 116
Bone Springs Div 9350 11.9 4.9 243 20.0 22.7 88
Burgess Junction 7880 .4 .0 * 18.7 18.4 102
Dome Lake 8880 6.8 .0 * 21.1 20.6 102
Little Goose 8870 7.5 -M * 15.7 -M *
Sucker Creek 8880 7.8 .0 * 21.7 21.9 99
Tie Creek 6870 .1 .0 * 23.7 19.0 125
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Basin Index (%) 631* 105
BELLE FOURCHE
Blind Park 6890 .0 .0 * 11.8 19.0 62
Cole Canyon 5910 .0 .0 * 22.2 17.5 127
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Basin Index (%) * 93
CHEYENNE RIVER BASIN
Blind Park 6890 .0 .0 * 11.8 19.0 62
North Rapid Creek 6130 -M .0 * -M 16.6 *
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Basin Index (%) * 62
UPPER N. PLATTE
Arapaho Ridge 10960 24.5 4.8 510 35.7 29.8 120
Blackhall Mtn 9820 26.1 -M * 42.8 -M *
Columbine 9160 -M .0 * 36.4 31.8 114
Divide Peak 8880 .0 .0 * 31.7 27.7 114
Joe Wright 10120 20.4 11.8 173 38.3 34.8 110
Laprele Creek 8375 .0 .0 * 20.7 18.4 112
Med Bow 10500 40.0 -M * 45.4 -M *
Never Summer 10280 22.4 13.6 165 26.0 -M *
North French Creek 10130 26.9 17.6 153 39.0 35.5 110
Old Battle 10000 39.2 19.4 202 47.2 44.0 107
Rawah 9020 .1 .0 * 23.3 20.3 115
Sage Creek Basin 7850 -M .0 * 21.1 18.1 117
Sand Lake 10050 30.1 18.5 163 33.2 33.7 99
South Brush Creek 8440 .0 .0 * 18.1 21.4 85
Tower 10500 54.7 33.6 163 58.3 49.8 117
Webber Springs 9250 14.3 .0 * 40.3 33.4 121
Whiskey Park 8950 14.0 2.0 700* 40.8 35.3 116
Willow Creek Pass 9540 7.3 .0 * 22.8 18.9 121
Zirkel 9340 10.3 .0 * 46.1 34.6 133
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Basin Index (%) 218* 113
SWEETWATER
Deer Park 9700 10.6 .1 10600* 26.7 27.5 97
Larsen Creek 9000 .0 .0 * 18.4 -M *
South Pass 9040 6.5 .0 * 20.6 24.0 86
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Basin Index (%) 17100* 92
LOWER N. PLATTE
Casper Mtn. 7900 .0 .0 * 23.3 22.2 105
Laprele Creek 8375 .0 .0 * 20.7 18.4 112
Reno Hill 8400 4.6 .0 * 27.4 23.1 119
Windy Peak 7900 .2 .0 * 16.9 16.6 102
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Basin Index (%) * 110
LARAMIE RIVER
Brooklyn Lake 10240 14.1 1.8 783* 34.5 28.6 121
Cinnabar Park 9574 11.3 .0 * 31.6 31.0 102
Crow Creek 8330 .1 .0 * 17.1 17.3 99
Deadman Hill 10220 13.1 3.7 354 26.0 24.4 107
Rawah 9020 .1 .0 * 23.3 20.3 115
Roach 9700 5.3 .2 2650* 30.3 26.1 116
Windy Peak 7900 .2 .0 * 16.9 16.6 102
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Basin Index (%) 775* 109
S. PLATTE
Black Mountain 8920 .0 -M * 19.7 -M *
Crow Creek 8330 .1 .0 * 17.1 17.3 99
Deadman Hill 10220 13.1 3.7 354 26.0 24.4 107
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Basin Index (%) 357* 103
LITTLE SNAKE RIVER
Battle Mountain 7440 .0 .0 * 22.1 19.5 113
Divide Peak 8880 .0 .0 * 31.7 27.7 114
Elk River 8700 .0 .0 * 26.2 25.8 102
Little Snake River 8915 12.1 .5 2420* 46.8 36.7 128
Old Battle 10000 39.2 19.4 202 47.2 44.0 107
Sage Creek Basin 7850 -M .0 * 21.1 18.1 117
Sandstone RS 8150 -M .0 * 24.0 23.6 102
Whiskey Park 8950 14.0 2.0 700* 40.8 35.3 116
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Basin Index (%) 298* 113
UPPER GREEN RIVER
Big Sandy Opening 9080 .1 .0 * 19.7 18.3 108
Blind Bull Sum 8650 21.1 8.2 257 25.1 24.7 102
East Rim Divide 7930 .0 .0 * 17.2 15.4 112
Elkhart Park G.S. 9400 4.7 .0 * 21.1 18.3 115
Gros Ventre Summit 8750 -M .0 * 17.5 17.3 101
Gunsight Pass 9820 9.9 .4 2475* 21.0 19.0 111
Indian Creek 9425 16.3 7.3 223 26.8 28.4 94
Kendall R.S. 7740 .0 .0 * 16.9 18.0 94
Loomis Park 8240 .3 .0 * 22.9 21.8 105
New Fork Lake 8340 .0 .0 * 16.8 15.0 112
Pocket Creek 9360 3.9 -M * 19.3 -M *
Snider Basin 8060 .0 .0 * 18.5 17.8 104
Spring Creek Divide 9000 16.7 8.2 204 30.2 29.5 102
Triple Peak 8500 -M .0 * -M 31.9 *
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Basin Index (%) 287* 104
LOWER GREEN RIVER
Blacks Fork Jct 8869 .1 -M * 18.8 -M *
Buck Pasture 9632 2.4 -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 * 17.8 14.6 122
Hole-in-Rock 9168 .1 .0 * 17.7 14.2 125
Indian Creek 9425 16.3 7.3 223 26.8 28.4 94
Kelley R.S. 8180 .4 .0 * 24.0 23.2 103
Spirit Lk 10235 10.8 -M * 24.9 -M *
Steel Creek Park 10158 13.7 7.6 180 27.2 22.4 121
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Basin Index (%) 205* 113
UPPER BEAR RIVER
Bear River RS 8777 .0 -M * 21.0 -M *
Bug Lake 7987 .6 .0 * 32.3 24.8 130
Burts Miller Ranch 8000 .0 -M * 11.5 -M *
Chalk Creek #1 9171 13.3 2.8 475 38.6 32.4 119
Hayden Fork 9130 .0 .0 * 30.6 27.1 113
Kelley R.S. 8180 .4 .0 * 24.0 23.2 103
Lily Lake 9133 .0 .0 * 22.5 22.7 99
Monte Cristo 8932 21.1 .0 * 42.1 33.2 127
Salt River Summit 7640 .0 .0 * 23.3 21.2 110
Spring Creek Divide 9000 16.7 8.2 204 30.2 29.5 102
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Basin Index (%) 474* 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.