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 3 , 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 18.2 13.2 138 18.8 23.5 80
Cottonwood Creek 7670 .2 .0 * 31.8 32.7 97
East Rim Divide 7930 .1 .0 * 14.5 15.3 95
Grand Targhee 9260 31.9 35.6 90 36.0 40.4 89
Granite Creek 6770 .0 .0 * 18.8 24.4 77
Grassy Lake 7265 8.0 1.8 444* 38.7 43.8 88
Gros Ventre Summit 8750 1.3 .0 * 15.9 16.2 98
Gunsight Pass 9820 10.0 3.0 333 19.9 18.3 109
Lewis Lake Divide 7850 6.8 9.3 73 39.6 41.4 96
Loomis Park 8240 .0 .0 * 20.1 22.0 91
Phillips Bench 8200 8.1 7.6 107 29.7 32.2 92
Salt River Summit 7640 .0 .0 * 20.2 20.6 98
Snake River Station 6920 .0 .0 * 23.1 28.6 81
Somsen Ranch 6800 .0 .0 * -M 21.4 *
Spring Creek Divide 9000 16.4 11.9 138 29.2 29.8 98
Thumb Divide 7980 .2 .0 * 24.2 23.6 103
Togwotee Pass 9580 18.7 17.6 106 29.5 31.2 95
Triple Peak 8500 7.4 .0 * 33.0 32.2 102
Two Ocean Plateau 9240 28.5 23.8 120 33.6 33.4 101
Willow Creek 8080 9.8 2.7 363* 41.3 42.4 97
Younts Peak 8350 .0 .0 * 18.5 20.5 90
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Basin Index (%) 131* 93
MADISON HEADWATERS IN WYOMING
Black Bear 8170 23.4 24.0 98 39.5 46.2 85
Canyon 7870 .6 -M * 19.1 -M *
Madison Plateau 7750 7.7 6.0 128 28.6 32.6 88
West Yellowstone 6700 .0 .0 * 18.1 18.6 97
Whiskey Creek 6800 .0 .0 * 24.0 26.4 91
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Basin Index (%) 104 89
YELLOWSTONE HEADWATERS IN WYOMING
Beartooth Lake 9360 21.7 17.2 126 24.9 27.4 91
Canyon 7870 .6 -M * 19.1 -M *
Evening Star 9200 26.3 16.4 160 34.1 36.5 93
Fisher Creek 9100 33.5 28.8 116 42.3 42.6 99
Monument Peak 8850 18.7 11.4 164 31.6 28.6 110
Northeast Entrance 7350 .0 .0 * 18.5 17.6 105
Parker Peak 9400 23.9 12.4 193 30.1 25.6 118
Sylvan Lake 8420 7.7 2.4 321 30.1 30.0 100
Thumb Divide 7980 .2 .0 * 24.2 23.6 103
Two Ocean Plateau 9240 28.5 23.8 120 33.6 33.4 101
White Mill 8700 21.4 15.6 137 29.7 29.2 102
Wolverine 7650 .0 .0 * 19.2 16.5 116
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Basin Index (%) 142 102
WIND RIVER
Burroughs Creek 8750 .6 -M * 19.4 -M *
Castle Creek 8400 .0 .0 * 12.6 13.6 93
Cold Springs 9630 .6 .0 * 18.6 16.2 115
Deer Park 9700 7.2 2.3 313 23.9 25.0 96
Hobbs Park 10100 16.2 5.2 312 25.8 20.6 125
Kirwin 9550 6.8 .0 * 21.6 18.4 117
Little Warm 9370 1.8 .0 * 19.6 17.0 115
South Pass 9040 1.5 .2 750* 20.9 21.4 98
St. Lawrence Alt 8620 .1 -M * 15.2 -M *
Togwotee Pass 9580 18.7 17.6 106 29.5 31.2 95
Townsend Creek 8700 1.2 .0 * 20.2 18.0 112
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Basin Index (%) 213* 106
BIGHORN BASIN
Bald Mtn. 9380 17.7 11.7 151 22.4 22.8 98
Bear Trap Meadow 8200 .3 .0 * 16.9 14.6 116
Bone Springs Div 9350 15.6 4.8 325 20.8 21.6 96
Grave Springs 8550 1.6 .0 * 16.9 14.7 115
Kirwin 9550 6.8 .0 * 21.6 18.4 117
Marquette 8760 6.3 .0 * 19.5 17.8 110
Middle Powder 7760 1.9 .0 * 18.4 16.3 113
Owl Creek 8975 .3 .0 * 12.6 11.8 107
Powder River Pass 9480 2.0 .0 * 15.1 19.2 79
Shell Creek 9580 14.4 7.2 200 21.1 19.6 108
Timber Creek 7950 1.7 .0 * 16.8 14.3 117
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Basin Index (%) 289* 106
SHOSHONE RIVER
Blackwater 9780 26.9 17.8 151 33.2 30.2 110
Evening Star 9200 26.3 16.4 160 34.1 36.5 93
Marquette 8760 6.3 .0 * 19.5 17.8 110
Sylvan Lake 8420 7.7 2.4 321 30.1 30.0 100
Sylvan Road 7120 .0 .0 * -M 21.1 *
Younts Peak 8350 .0 .0 * 18.5 20.5 90
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Basin Index (%) 184 100
POWDER RIVER
Bear Trap Meadow 8200 .3 .0 * 16.9 14.6 116
Cloud Peak Reservoir 9860 15.9 4.8 331 25.9 22.1 117
Grave Springs 8550 1.6 .0 * 16.9 14.7 115
Hansen Sawmill 8360 1.2 .0 * 15.8 15.0 105
Middle Powder 7760 1.9 .0 * 18.4 16.3 113
Powder River Pass 9480 2.0 .0 * 15.1 19.2 79
Soldier Park 8720 1.7 .0 * 16.6 16.0 104
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Basin Index (%) 512* 107
TONGUE RIVER
Big Goose 7990 5.0 .0 * 21.7 19.4 112
Bone Springs Div 9350 15.6 4.8 325 20.8 21.6 96
Burgess Junction 7880 9.8 .0 * 22.8 18.5 123
Dome Lake 8880 9.9 .0 * 24.4 21.0 116
Little Goose 8870 8.2 .0 * 25.0 21.2 118
Sucker Creek 8880 12.4 .2 6200* 28.9 22.0 131
Tie Creek 6870 .0 .0 * 22.4 19.5 115
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Basin Index (%) 1218* 116
BELLE FOURCHE
Blind Park 6890 .0 .0 * 17.7 17.6 101
Cole Canyon 5910 .0 .0 * 18.6 16.8 111
North Rapid Creek 6130 .0 .0 * 11.6 15.1 77
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Basin Index (%) * 97
CHEYENNE RIVER BASIN
Blind Park 6890 .0 .0 * 17.7 17.6 101
North Rapid Creek 6130 .0 .0 * 11.6 15.1 77
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Basin Index (%) * 90
UPPER N. PLATTE
Arapaho Ridge 10976 8.0 10.8 74 27.3 28.6 95
Blackhall Mtn 9839 12.4 21.9 57 37.5 41.2 91
Cinnabar Park 9707 .0 .0 * 26.0 29.4 88
Columbine 9167 -M .0 * 31.2 31.8 98
Divide Peak 8730 .0 .0 * 25.6 26.9 95
Joe Wright 10158 16.5 12.8 129 39.3 34.7 113
Laprele Creek 8390 .0 .0 * 16.6 18.2 91
Med Bow 10512 28.4 -M * 38.9 -M *
Never Summer 10323 18.9 16.1 117 24.7 24.1 102
North French Creek 10153 18.2 17.9 102 34.4 37.2 92
Old Battle 9860 24.0 22.8 105 38.7 42.9 90
Rawah 9069 .0 .0 * 22.6 21.6 105
Sage Creek Basin 7850 -M .0 * 14.4 16.9 85
Sand Lake 10098 24.3 21.0 116 34.3 33.4 103
South Brush Creek 8495 .3 .0 * 17.6 20.0 88
Tower 10620 33.2 32.2 103 51.7 50.4 103
Webber Springs 9260 1.2 .0 * 31.8 32.8 97
Whiskey Park 9020 5.2 4.2 124 36.3 36.8 99
Willow Creek Pass 9523 .2 .0 * 20.1 18.6 108
Zirkel 9338 .0 .0 * 39.4 36.4 108
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Basin Index (%) 102* 98
SWEETWATER
Deer Park 9700 7.2 2.3 313 23.9 25.0 96
Larsen Creek 9000 .1 .0 * 16.7 17.2 97
South Pass 9040 1.5 .2 750* 20.9 21.4 98
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Basin Index (%) 352* 97
LOWER N. PLATTE
Casper Mtn. 7920 1.2 .0 * 22.4 21.8 103
Laprele Creek 8390 .0 .0 * 16.6 18.2 91
Reno Hill 8430 2.6 .0 * 25.4 23.4 109
Windy Peak 7915 .2 .0 * 14.6 17.0 86
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Basin Index (%) * 98
LARAMIE RIVER
Brooklyn Lake 10250 2.5 3.0 83 29.1 29.0 100
Cinnabar Park 9707 .0 .0 * 26.0 29.4 88
Crow Creek 8335 .0 .0 * 14.3 16.2 88
Deadman Hill 10239 6.5 6.8 96 26.1 24.5 107
Rawah 9069 .0 .0 * 22.6 21.6 105
Roach 9740 .3 .6 50* 26.7 25.8 103
Windy Peak 7915 .2 .0 * 14.6 17.0 86
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Basin Index (%) 91* 97
S. PLATTE
Crow Creek 8335 .0 .0 * 14.3 16.2 88
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Basin Index (%) * 88
LITTLE SNAKE RIVER
Battle Mountain 7498 .0 .0 * 20.3 20.0 102
Divide Peak 8730 .0 .0 * 25.6 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 .6 0* 38.0 41.4 92
Old Battle 9860 24.0 22.8 105 38.7 42.9 90
Sage Creek Basin 7850 -M .0 * 14.4 16.9 85
Sandstone RS 8152 .0 .0 * 20.2 22.4 90
Whiskey Park 9020 5.2 4.2 124 36.3 36.8 99
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Basin Index (%) 106* 95
UPPER GREEN RIVER
Big Sandy Opening 9080 .0 .0 * 16.6 17.4 95
Blind Bull Sum 8650 18.2 13.2 138 18.8 23.5 80
East Rim Divide 7930 .1 .0 * 14.5 15.3 95
Elkhart Park G.S. 9400 .1 .0 * 14.0 17.4 80
Gros Ventre Summit 8750 1.3 .0 * 15.9 16.2 98
Gunsight Pass 9820 10.0 3.0 333 19.9 18.3 109
Indian Creek 9425 11.4 9.2 124 24.9 26.2 95
Kendall R.S. 7740 .0 .0 * 17.8 17.5 102
Larsen Creek 9000 .1 .0 * 16.7 17.2 97
Loomis Park 8240 .0 .0 * 20.1 22.0 91
New Fork Lake 8340 .0 .0 * 13.1 15.4 85
Pocket Creek 9360 -M -M * -M -M *
Snider Basin 8060 .0 .0 * 19.5 18.5 105
Spring Creek Divide 9000 16.4 11.9 138 29.2 29.8 98
Triple Peak 8500 7.4 .0 * 33.0 32.2 102
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Basin Index (%) 174* 96
LOWER GREEN RIVER
Blacks Fork Jct 8869 .0 .0 * 16.6 15.7 106
Buck Pasture 9632 .0 -M * 22.0 -M *
EF Blacks Fork GS 9360 .0 .0 * 19.5 16.8 116
Hams Fork 7840 .0 .0 * 14.5 15.2 95
Henrys Fork 10182 -M -M * 15.5 -M *
Hewinta 9500 .0 .0 * 19.3 18.2 106
Hickerson Park 9122 .0 .0 * 14.8 14.4 103
Hole-in-Rock 9168 .0 .0 * 14.6 14.4 101
Indian Creek 9425 11.4 9.2 124 24.9 26.2 95
Kelley R.S. 8180 .0 .0 * 20.9 22.4 93
Spirit Lk 10235 .0 .0 * 18.6 20.7 90
Steel Creek Park 10158 3.8 6.0 63 22.5 21.6 104
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Basin Index (%) 100* 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 .0 .0 * 10.6 9.9 107
Chalk Creek #1 9171 .4 .0 * 28.9 29.9 97
Giveout 6930 .2 .0 * 15.4 17.0 91
Hayden Fork 9130 .0 .0 * 26.7 26.0 103
Kelley R.S. 8180 .0 .0 * 20.9 22.4 93
Lily Lake 9133 .0 .0 * 20.0 21.4 93
Monte Cristo 8932 1.7 2.6 65* 31.2 31.5 99
Salt River Summit 7640 .0 .0 * 20.2 20.6 98
Spring Creek Divide 9000 16.4 11.9 138 29.2 29.8 98
Trial Lake 9992 .0 1.6 0* 28.0 28.4 99
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Basin Index (%) 117* 99
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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.
