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 , 2022
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BASIN ELEV. SNOW WATER EQUIVALENT TOTAL PRECIPITATION
Data Site Name (Ft) % %
Current Median Median Current Median Med
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WYOMING
SNAKE RIVER
Base Camp 7060 .0 .0 * 22.7 25.6 89
Blind Bull Sum 8650 -M 12.1 * 18.8 23.6 80
Cottonwood Creek 7670 .0 .0 * 31.8 32.9 97
East Rim Divide 7930 .1 .0 * 14.7 15.4 95
Grand Targhee 9260 31.4 34.0 92 36.0 40.8 88
Granite Creek 6770 .0 .0 * 18.9 24.4 77
Grassy Lake 7265 7.0 .6 1167* 38.7 44.0 88
Gros Ventre Summit 8750 1.4 .0 * 16.0 16.2 99
Gunsight Pass 9820 9.8 1.8 544 20.0 18.3 109
Lewis Lake Divide 7850 5.6 8.0 70 39.7 41.4 96
Loomis Park 8240 .0 .0 * 20.3 22.1 92
Phillips Bench 8200 7.0 6.7 104 29.7 32.8 91
Salt River Summit 7640 .0 .0 * 20.2 20.6 98
Snake River Station 6920 .1 .0 * 23.2 28.8 81
Somsen Ranch 6800 .0 .0 * -M 21.5 *
Spring Creek Divide 9000 15.5 11.0 141 29.2 29.8 98
Thumb Divide 7980 .2 .0 * 24.3 23.7 103
Togwotee Pass 9580 18.1 17.3 105 29.5 31.3 94
Triple Peak 8500 -M .0 * 33.1 32.4 102
Two Ocean Plateau 9240 28.4 23.0 123 33.5 33.6 100
Willow Creek 8080 7.9 1.4 564* 41.3 42.6 97
Younts Peak 8350 .0 .0 * 18.4 20.6 89
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Basin Index (%) 128* 93
MADISON HEADWATERS IN WYOMING
Black Bear 8170 22.5 22.9 98 39.5 46.2 85
Canyon 7870 .2 -M * 19.2 -M *
Madison Plateau 7750 6.4 4.9 131 28.6 32.6 88
West Yellowstone 6700 .0 .0 * 18.1 18.6 97
Whiskey Creek 6800 .0 .0 * 24.2 26.6 91
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Basin Index (%) 104 89
YELLOWSTONE HEADWATERS IN WYOMING
Beartooth Lake 9360 21.3 16.6 128 25.3 27.4 92
Canyon 7870 .2 -M * 19.2 -M *
Evening Star 9200 25.6 15.4 166 34.1 36.6 93
Fisher Creek 9100 32.8 28.4 115 42.4 42.6 100
Monument Peak 8850 18.1 10.4 174 31.9 28.6 112
Northeast Entrance 7350 .0 .0 * 18.6 17.6 106
Parker Peak 9400 23.5 11.2 210 30.2 25.6 118
Sylvan Lake 8420 6.8 1.4 486* 30.1 30.1 100
Thumb Divide 7980 .2 .0 * 24.3 23.7 103
Two Ocean Plateau 9240 28.4 23.0 123 33.5 33.6 100
White Mill 8700 20.8 14.8 141 29.8 29.2 102
Wolverine 7650 .0 .0 * 19.3 16.5 117
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Basin Index (%) 146 103
WIND RIVER
Burroughs Creek 8750 .4 -M * 19.4 -M *
Castle Creek 8400 .0 .0 * 12.6 13.6 93
Cold Springs 9630 .2 .0 * 18.6 16.4 113
Deer Park 9700 6.7 1.2 558* 23.9 25.0 96
Hobbs Park 10100 15.8 5.0 316 25.8 20.8 124
Kirwin 9550 6.3 .0 * 21.6 18.4 117
Little Warm 9370 .5 .0 * 19.6 17.0 115
South Pass 9040 .8 .0 * 21.0 21.4 98
St. Lawrence Alt 8620 .0 -M * 15.2 -M *
Togwotee Pass 9580 18.1 17.3 105 29.5 31.3 94
Townsend Creek 8700 .4 .0 * 20.2 18.0 112
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Basin Index (%) 208* 106
BIGHORN BASIN
Bald Mtn. 9380 17.0 11.0 155 22.5 22.8 99
Bear Trap Meadow 8200 .1 .0 * 16.9 14.6 116
Bone Springs Div 9350 15.2 3.4 447 20.9 21.6 97
Grave Springs 8550 .7 .0 * 16.6 14.8 112
Kirwin 9550 6.3 .0 * 21.6 18.4 117
Marquette 8760 5.7 .0 * 19.7 17.8 111
Middle Powder 7760 .6 .0 * 18.4 16.4 112
Owl Creek 8975 .2 .0 * 12.6 11.8 107
Powder River Pass 9480 1.4 .0 * 15.2 19.3 79
Shell Creek 9580 14.0 6.7 209 21.4 19.6 109
Timber Creek 7950 1.1 .0 * 16.8 14.4 117
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Basin Index (%) 295* 106
SHOSHONE RIVER
Blackwater 9780 26.4 17.1 154 33.2 30.2 110
Evening Star 9200 25.6 15.4 166 34.1 36.6 93
Marquette 8760 5.7 .0 * 19.7 17.8 111
Sylvan Lake 8420 6.8 1.4 486* 30.1 30.1 100
Sylvan Road 7120 .0 .0 * -M 21.1 *
Younts Peak 8350 .0 .0 * 18.4 20.6 89
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Basin Index (%) 190* 100
POWDER RIVER
Bear Trap Meadow 8200 .1 .0 * 16.9 14.6 116
Cloud Peak Reservoir 9860 15.6 3.7 422 25.9 22.2 117
Grave Springs 8550 .7 .0 * 16.6 14.8 112
Hansen Sawmill 8360 .2 .0 * 15.9 15.0 106
Middle Powder 7760 .6 .0 * 18.4 16.4 112
Powder River Pass 9480 1.4 .0 * 15.2 19.3 79
Soldier Park 8720 1.4 .0 * 16.6 16.2 102
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Basin Index (%) 541* 106
TONGUE RIVER
Big Goose 7990 4.6 .0 * 21.7 19.5 111
Bone Springs Div 9350 15.2 3.4 447 20.9 21.6 97
Burgess Junction 7880 9.3 .0 * 22.8 18.7 122
Dome Lake 8880 9.6 .0 * 24.4 21.2 115
Little Goose 8870 7.9 .0 * 25.1 21.4 117
Sucker Creek 8880 11.9 .0 * 28.9 22.2 130
Tie Creek 6870 .0 .0 * 22.4 19.6 114
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Basin Index (%) 1721* 115
BELLE FOURCHE
Blind Park 6890 .0 .0 * 17.7 17.7 100
Cole Canyon 5910 .0 .0 * 18.6 16.8 111
North Rapid Creek 6130 .1 .0 * 11.6 15.1 77
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Basin Index (%) * 97
CHEYENNE RIVER BASIN
Blind Park 6890 .0 .0 * 17.7 17.7 100
North Rapid Creek 6130 .1 .0 * 11.6 15.1 77
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Basin Index (%) * 89
UPPER N. PLATTE
Arapaho Ridge 10976 6.7 10.1 66 27.3 28.6 95
Blackhall Mtn 9839 10.9 20.7 53 37.5 41.2 91
Cinnabar Park 9707 .0 .0 * 26.0 29.4 88
Columbine 9167 -M .0 * 31.3 31.8 98
Divide Peak 8730 .0 .0 * 25.5 26.9 95
Joe Wright 10158 15.8 12.2 130 39.3 34.7 113
Laprele Creek 8390 .0 .0 * 16.6 18.2 91
Med Bow 10512 27.3 -M * 39.0 -M *
Never Summer 10323 18.1 15.6 116 24.8 24.2 102
North French Creek 10153 17.0 17.1 99 34.4 37.5 92
Old Battle 9860 22.9 21.5 107 38.7 42.9 90
Rawah 9069 .0 .0 * 22.6 21.6 105
Sage Creek Basin 7850 -M .0 * 14.5 17.0 85
Sand Lake 10098 23.8 19.7 121 34.3 33.5 102
South Brush Creek 8495 .3 .0 * 17.6 20.2 87
Tower 10620 32.4 30.6 106 51.7 50.5 102
Webber Springs 9260 .5 .0 * 31.9 33.0 97
Whiskey Park 9020 3.6 2.5 144* 36.3 36.8 99
Willow Creek Pass 9523 .1 .0 * 20.1 18.8 107
Zirkel 9338 .0 .0 * 39.4 36.5 108
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Basin Index (%) 101* 98
SWEETWATER
Deer Park 9700 6.7 1.2 558* 23.9 25.0 96
Larsen Creek 9000 .1 .0 * 16.7 17.2 97
South Pass 9040 .8 .0 * 21.0 21.4 98
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Basin Index (%) 633* 97
LOWER N. PLATTE
Casper Mtn. 7920 .1 .0 * 22.4 21.8 103
Laprele Creek 8390 .0 .0 * 16.6 18.2 91
Reno Hill 8430 1.5 .0 * 25.4 23.4 109
Windy Peak 7915 .2 .0 * 14.6 17.2 85
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Basin Index (%) * 98
LARAMIE RIVER
Brooklyn Lake 10250 1.2 2.3 52* 29.1 29.1 100
Cinnabar Park 9707 .0 .0 * 26.0 29.4 88
Crow Creek 8335 .1 .0 * 14.4 16.2 89
Deadman Hill 10239 5.3 6.0 88 26.2 24.6 107
Rawah 9069 .0 .0 * 22.6 21.6 105
Roach 9740 .2 .4 50* 26.7 26.2 102
Windy Peak 7915 .2 .0 * 14.6 17.2 85
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Basin Index (%) 80* 97
S. PLATTE
Crow Creek 8335 .1 .0 * 14.4 16.2 89
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Basin Index (%) * 89
LITTLE SNAKE RIVER
Battle Mountain 7498 .0 .0 * 20.2 20.0 101
Divide Peak 8730 .0 .0 * 25.5 26.9 95
Elk River 8739 .0 .0 * 27.2 24.6 111
Elkhead Divide 8800 .0 -M * 26.7 -M *
Little Snake River 8928 .0 .0 * 38.0 41.5 92
Old Battle 9860 22.9 21.5 107 38.7 42.9 90
Sage Creek Basin 7850 -M .0 * 14.5 17.0 85
Sandstone RS 8152 .0 .0 * 20.2 22.4 90
Whiskey Park 9020 3.6 2.5 144* 36.3 36.8 99
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Basin Index (%) 110* 95
UPPER GREEN RIVER
Big Sandy Opening 9080 .0 .0 * 16.6 17.4 95
Blind Bull Sum 8650 -M 12.1 * 18.8 23.6 80
East Rim Divide 7930 .1 .0 * 14.7 15.4 95
Elkhart Park G.S. 9400 .1 .0 * 14.0 17.4 80
Gros Ventre Summit 8750 1.4 .0 * 16.0 16.2 99
Gunsight Pass 9820 9.8 1.8 544 20.0 18.3 109
Indian Creek 9425 10.3 7.6 136 24.9 26.2 95
Kendall R.S. 7740 .0 .0 * 17.9 17.5 102
Larsen Creek 9000 .1 .0 * 16.7 17.2 97
Loomis Park 8240 .0 .0 * 20.3 22.1 92
New Fork Lake 8340 .0 .0 * 13.1 15.6 84
Pocket Creek 9360 -M -M * -M -M *
Snider Basin 8060 .0 .0 * 19.4 18.5 105
Spring Creek Divide 9000 15.5 11.0 141 29.2 29.8 98
Triple Peak 8500 -M .0 * 33.1 32.4 102
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Basin Index (%) 183* 96
LOWER GREEN RIVER
Blacks Fork Jct 8869 .5 .0 * 16.5 15.7 105
Buck Pasture 9632 .0 -M * 21.9 -M *
EF Blacks Fork GS 9360 .0 .0 * 19.6 16.8 117
Hams Fork 7840 .0 .0 * 14.5 15.6 93
Henrys Fork 10182 -M -M * 15.5 -M *
Hewinta 9500 .0 .0 * 19.3 18.2 106
Hickerson Park 9122 .0 .0 * 14.7 14.4 102
Hole-in-Rock 9168 .0 .0 * 14.6 14.4 101
Indian Creek 9425 10.3 7.6 136 24.9 26.2 95
Kelley R.S. 8180 .0 .0 * 20.8 22.5 92
Spirit Lk 10235 .1 .0 * 18.6 20.7 90
Steel Creek Park 10158 2.6 4.4 59 22.4 21.6 104
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Basin Index (%) 112* 100
UPPER BEAR RIVER
Bear River RS 8777 .0 .0 * 17.5 15.2 115
Bug Lake 7987 .1 .0 * 23.0 22.8 101
Burts Miller Ranch 8000 -M .0 * 10.6 9.9 107
Chalk Creek #1 9171 .3 .0 * 28.9 29.9 97
Giveout 6930 .2 .0 * 15.4 17.2 90
Hayden Fork 9130 .0 .0 * 26.6 26.2 102
Kelley R.S. 8180 .0 .0 * 20.8 22.5 92
Lily Lake 9133 .1 .0 * 20.0 21.4 93
Monte Cristo 8932 .4 1.6 25* 31.2 31.5 99
Salt River Summit 7640 .0 .0 * 20.2 20.6 98
Spring Creek Divide 9000 15.5 11.0 141 29.2 29.8 98
Trial Lake 9992 .0 .7 0* 28.0 28.6 98
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Basin Index (%) 125* 98
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-M = Missing data
* = Data may not provide a valid measure of conditions.
Units = inches for the Current and Median (or Average) 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 (or Average) represents the snow water
equivalent found at selected SNOTEL sites in or near the basin compared to
the Median (or Average) value for those sites on this day.
The TOTAL PRECIPITATION Percent of Median (or Average) represents the total precipitation
(beginning October 1st) found at selected SNOTEL sites in or near the basin
compared to the Median (or Average) value for those sites on this day.
Contact your state water supply staff for assistance.
Medians and averages are calculated for the period 1991-2020.
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 or average for the day is less than 10% of the maximum
median or average value for the year.
* Basin - More than half of the stations for a basin with medians (or averages) report missing or invalid data
The basin index is calculated as the sum of the valid current values
divided by the sum of the corresponding medians or averages 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.
