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 , 2024
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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 -M .0 * 24.6 25.6 96
Blind Bull Sum 8650 19.1 13.2 145 20.4 23.5 87
Cottonwood Creek 7670 .0 .0 * 32.4 32.7 99
East Rim Divide 7930 -M .0 * 14.1 15.3 92
Grand Targhee 9260 36.5 35.6 103 38.6 40.4 96
Granite Creek 6770 -M .0 * 21.7 24.4 89
Grassy Lake 7265 3.7 1.8 206* 40.3 43.8 92
Gros Ventre Summit 8750 -M .0 * -M 16.2 *
Gunsight Pass 9820 1.2 3.0 40 18.8 18.3 103
Lewis Lake Divide 7850 7.9 9.3 85 41.4 41.4 100
Loomis Park 8240 .2 .0 * 18.4 22.0 84
Phillips Bench 8200 12.6 7.6 166 35.1 32.2 109
Salt River Summit 7640 -M .0 * 17.3 20.6 84
Snake River Station 6920 .0 .0 * 26.3 28.6 92
Somsen Ranch 6800 -M .0 * 24.5 21.4 114
Spring Creek Divide 9000 -M 11.9 * -M 29.8 *
Thumb Divide 7980 .2 .0 * 21.9 23.6 93
Togwotee Pass 9580 13.2 17.6 75 26.3 31.2 84
Triple Peak 8500 .1 .0 * 31.3 32.2 97
Two Ocean Plateau 9240 24.8 23.8 104 32.5 33.4 97
Willow Creek 8080 6.3 2.7 233* 42.4 42.4 100
Younts Peak 8350 .2 .0 * 19.5 20.5 95
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Basin Index (%) 110* 96
MADISON HEADWATERS IN WYOMING
Black Bear 8170 24.5 24.0 102 44.7 46.2 97
Canyon 7870 .0 -M * 16.9 -M *
Madison Plateau 7750 4.8 6.0 80 27.4 32.6 84
West Yellowstone 6700 -M .0 * 15.7 18.6 84
Whiskey Creek 6800 .0 .0 * 23.2 26.4 88
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Basin Index (%) 98 90
YELLOWSTONE HEADWATERS IN WYOMING
Beartooth Lake 9360 17.9 17.2 104 23.3 27.4 85
Canyon 7870 .0 -M * 16.9 -M *
Evening Star 9200 12.4 16.4 76 33.0 36.5 90
Fisher Creek 9100 21.7 28.8 75 35.3 42.6 83
Monument Peak 8850 9.0 11.4 79 26.5 28.6 93
Northeast Entrance 7350 .0 .0 * 16.1 17.6 91
Parker Peak 9400 14.7 12.4 119 29.2 25.6 114
Sylvan Lake 8420 .8 2.4 33 29.8 30.0 99
Thumb Divide 7980 .2 .0 * 21.9 23.6 93
Two Ocean Plateau 9240 24.8 23.8 104 32.5 33.4 97
White Mill 8700 14.6 15.6 94 25.1 29.2 86
Wolverine 7650 .1 .0 * 16.8 16.5 102
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Basin Index (%) 91 93
WIND RIVER
Burroughs Creek 8750 .2 -M * 14.2 -M *
Castle Creek 8400 .0 .0 * 10.5 13.6 77
Cold Springs 9630 .1 .0 * 15.2 16.2 94
Deer Park 9700 7.1 2.3 309 27.8 25.0 111
Hobbs Park 10100 12.6 5.2 242 24.9 20.6 121
Kirwin 9550 .0 .0 * 20.7 18.4 112
Little Warm 9370 .1 .0 * 18.2 17.0 107
South Pass 9040 1.2 .2 600* 24.2 21.4 113
St. Lawrence Alt 8620 -M -M * 15.4 -M *
Togwotee Pass 9580 13.2 17.6 75 26.3 31.2 84
Townsend Creek 8700 -M .0 * 20.3 18.0 113
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Basin Index (%) 136* 104
BIGHORN BASIN
Bald Mtn. 9380 14.7 11.7 126 20.8 22.8 91
Bear Trap Meadow 8200 -M .0 * 15.9 14.6 109
Bone Springs Div 9350 12.8 4.8 267 18.6 21.6 86
Grave Springs 8550 .0 .0 * 15.2 14.7 103
Kirwin 9550 .0 .0 * 20.7 18.4 112
Marquette 8760 6.2 .0 * 24.3 17.8 137
Middle Powder 7760 .2 .0 * 16.3 16.3 100
Owl Creek 8975 -M .0 * 12.8 11.8 108
Powder River Pass 9480 .1 .0 * 19.4 19.2 101
Shell Creek 9580 11.3 7.2 157 20.4 19.6 104
Timber Creek 7950 -M .0 * 18.0 14.3 126
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Basin Index (%) 191* 106
SHOSHONE RIVER
Blackwater 9780 20.8 17.8 117 29.9 30.2 99
Evening Star 9200 12.4 16.4 76 33.0 36.5 90
Marquette 8760 6.2 .0 * 24.3 17.8 137
Sylvan Lake 8420 .8 2.4 33 29.8 30.0 99
Sylvan Road 7120 -M .0 * 18.8 21.1 89
Younts Peak 8350 .2 .0 * 19.5 20.5 95
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Basin Index (%) 110 99
POWDER RIVER
Bear Trap Meadow 8200 -M .0 * 15.9 14.6 109
Cloud Peak Reservoir 9860 12.4 4.8 258 25.0 22.1 113
Grave Springs 8550 .0 .0 * 15.2 14.7 103
Hansen Sawmill 8360 -M .0 * 15.7 15.0 105
Middle Powder 7760 .2 .0 * 16.3 16.3 100
Powder River Pass 9480 .1 .0 * 19.4 19.2 101
Soldier Park 8720 .0 .0 * 16.2 16.0 101
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Basin Index (%) 265* 105
TONGUE RIVER
Big Goose 7990 .2 .0 * 19.0 19.4 98
Bone Springs Div 9350 12.8 4.8 267 18.6 21.6 86
Burgess Junction 7880 1.6 .0 * 19.8 18.5 107
Dome Lake 8880 -M .0 * 22.5 21.0 107
Little Goose 8870 3.1 .0 * 22.6 21.2 107
Sucker Creek 8880 3.0 .2 1500* 24.9 22.0 113
Tie Creek 6870 -M .0 * 19.3 19.5 99
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Basin Index (%) 414* 102
BELLE FOURCHE
Blind Park 6890 .0 .0 * 13.9 17.6 79
Cole Canyon 5910 .1 .0 * 13.9 16.8 83
North Rapid Creek 6130 -M .0 * 14.1 15.1 93
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Basin Index (%) * 85
CHEYENNE RIVER BASIN
Blind Park 6890 .0 .0 * 13.9 17.6 79
North Rapid Creek 6130 -M .0 * 14.1 15.1 93
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Basin Index (%) * 86
UPPER N. PLATTE
Arapaho Ridge 10976 14.2 10.8 131 28.2 28.6 99
Blackhall Mtn 9839 21.2 21.9 97 43.8 41.2 106
Cinnabar Park 9707 1.4 .0 * 28.6 29.4 97
Columbine 9167 -M .0 * 32.2 31.8 101
Divide Peak 8730 -M .0 * 31.2 26.9 116
Joe Wright 10158 12.5 12.8 98 33.1 34.7 95
Laprele Creek 8390 .0 .0 * 18.3 18.2 101
Med Bow 10512 -M -M * -M -M *
Never Summer 10323 19.3 16.1 120 22.0 24.1 91
North French Creek 10153 19.8 17.9 111 36.2 37.2 97
Old Battle 9860 27.9 22.8 122 42.9 42.9 100
Rawah 9069 .0 .0 * 21.4 21.6 99
Sage Creek Basin 7850 .0 .0 * 20.3 16.9 120
Sand Lake 10098 27.4 21.0 130 38.4 33.4 115
South Brush Creek 8495 .0 .0 * 17.4 20.0 87
Tower 10620 37.7 32.2 117 50.5 50.4 100
Webber Springs 9260 5.2 .0 * 32.8 32.8 100
Whiskey Park 9020 6.2 4.2 148 36.8 36.8 100
Willow Creek Pass 9523 .5 .0 * 19.3 18.6 104
Zirkel 9338 .1 .0 * 36.8 36.4 101
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Basin Index (%) 121* 101
SWEETWATER
Deer Park 9700 7.1 2.3 309 27.8 25.0 111
Larsen Creek 9000 -M .0 * 17.7 17.2 103
South Pass 9040 1.2 .2 600* 24.2 21.4 113
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Basin Index (%) 332* 110
LOWER N. PLATTE
Casper Mtn. 7920 -M .0 * 23.3 21.8 107
Laprele Creek 8390 .0 .0 * 18.3 18.2 101
Reno Hill 8430 .2 .0 * 23.0 23.4 98
Windy Peak 7915 .0 .0 * 15.4 17.0 91
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Basin Index (%) * 100
LARAMIE RIVER
Brooklyn Lake 10250 8.3 3.0 277 32.7 29.0 113
Cinnabar Park 9707 1.4 .0 * 28.6 29.4 97
Crow Creek 8335 .0 .0 * 13.5 16.2 83
Deadman Hill 10239 9.0 6.8 132 24.8 24.5 101
Rawah 9069 .0 .0 * 21.4 21.6 99
Roach 9740 .1 .6 17* 22.7 25.8 88
Windy Peak 7915 .0 .0 * 15.4 17.0 91
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Basin Index (%) 181* 97
S. PLATTE
Crow Creek 8335 .0 .0 * 13.5 16.2 83
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Basin Index (%) * 83
LITTLE SNAKE RIVER
Battle Mountain 7498 .0 .0 * 23.6 20.0 118
Divide Peak 8730 -M .0 * 31.2 26.9 116
Elk River 8739 .1 .0 * 24.6 24.6 100
Elkhead Divide 8800 .1 -M * 28.9 -M *
Little Snake River 8928 4.9 .6 817* 42.2 41.4 102
Old Battle 9860 27.9 22.8 122 42.9 42.9 100
Sage Creek Basin 7850 .0 .0 * 20.3 16.9 120
Sandstone RS 8152 .0 .0 * 23.7 22.4 106
Whiskey Park 9020 6.2 4.2 148 36.8 36.8 100
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Basin Index (%) 142* 106
UPPER GREEN RIVER
Big Sandy Opening 9080 -M .0 * 18.2 17.4 105
Blind Bull Sum 8650 19.1 13.2 145 20.4 23.5 87
East Rim Divide 7930 -M .0 * 14.1 15.3 92
Elkhart Park G.S. 9400 -M .0 * 15.2 17.4 87
Gros Ventre Summit 8750 -M .0 * -M 16.2 *
Gunsight Pass 9820 1.2 3.0 40 18.8 18.3 103
Indian Creek 9425 8.1 9.2 88 24.9 26.2 95
Kendall R.S. 7740 .1 .0 * 15.9 17.5 91
Larsen Creek 9000 -M .0 * 17.7 17.2 103
Loomis Park 8240 .2 .0 * 18.4 22.0 84
New Fork Lake 8340 -M .0 * -M 15.4 *
Pocket Creek 9360 -M -M * -M -M *
Snider Basin 8060 -M .0 * 16.5 18.5 89
Spring Creek Divide 9000 -M 11.9 * -M 29.8 *
Triple Peak 8500 .1 .0 * 31.3 32.2 97
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Basin Index (%) 113* 94
LOWER GREEN RIVER
Blacks Fork Jct 8869 .0 .0 * 18.2 15.7 116
Buck Pasture 9632 .0 -M * 23.1 -M *
EF Blacks Fork GS 9360 .0 .0 * 16.5 16.8 98
Hams Fork 7840 -M .0 * 14.6 15.2 96
Henrys Fork 10182 -M -M * 18.6 -M *
Hewinta 9500 .0 .0 * 19.7 18.2 108
Hickerson Park 9122 .0 .0 * 17.3 14.4 120
Hole-in-Rock 9168 .0 .0 * 14.8 14.4 103
Indian Creek 9425 8.1 9.2 88 24.9 26.2 95
Kelley R.S. 8180 -M .0 * 21.4 22.4 96
Spirit Lk 10235 .0 .0 * 23.8 20.7 115
Steel Creek Park 10158 8.1 6.0 135 23.8 21.6 110
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Basin Index (%) 107* 105
UPPER BEAR RIVER
Bear River RS 8777 .0 .0 * 18.0 15.2 118
Bug Lake 7987 .0 .0 * 26.7 22.8 117
Burts Miller Ranch 8000 .0 .0 * 14.9 9.9 151
Chalk Creek #1 9171 1.0 .0 * 30.8 29.9 103
Giveout 6930 .1 .0 * 15.8 17.0 93
Hayden Fork 9130 .0 .0 * 28.6 26.0 110
Kelley R.S. 8180 -M .0 * 21.4 22.4 96
Lily Lake 9133 .0 .0 * 20.2 21.4 94
Monte Cristo 8932 7.2 2.6 277* 34.9 31.5 111
Salt River Summit 7640 -M .0 * 17.3 20.6 84
Spring Creek Divide 9000 -M 11.9 * -M 29.8 *
Trial Lake 9992 12.4 1.6 775* 32.8 28.4 115
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Basin Index (%) 493* 107
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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.