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: APRIL 24 , 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 10.8 12.8 84 21.5 22.0 98
Blind Bull Sum 8650 24.5 25.0 98 17.0 19.2 89
Cottonwood Creek 7670 15.0 19.3 78 26.2 26.8 98
East Rim Divide 7930 .3 9.2 3 11.5 11.8 97
Grand Targhee 9260 40.9 47.2 87 31.8 35.3 90
Granite Creek 6770 10.4 11.8 88 16.7 19.6 85
Grassy Lake 7265 25.6 30.5 84 36.1 37.4 97
Gros Ventre Summit 8750 10.6 13.3 80 14.1 13.6 104
Gunsight Pass 9820 11.9 13.0 92 15.5 15.4 101
Lewis Lake Divide 7850 29.2 31.8 92 36.8 35.4 104
Loomis Park 8240 7.8 12.6 62 15.5 17.4 89
Phillips Bench 8200 22.9 26.4 87 28.8 27.6 104
Salt River Summit 7640 10.2 10.8 94 15.3 17.3 88
Snake River Station 6920 10.6 13.4 79 23.8 23.7 100
Somsen Ranch 6800 9.7 5.6 173 21.9 17.5 125
Spring Creek Divide 9000 23.1 25.8 90 22.7 24.8 92
Thumb Divide 7980 15.2 16.4 93 19.1 19.8 96
Togwotee Pass 9580 19.5 24.9 78 20.9 26.2 80
Triple Peak 8500 17.7 20.1 88 25.2 27.2 93
Two Ocean Plateau 9240 29.5 32.8 90 27.7 28.6 97
Willow Creek 8080 28.9 28.0 103 35.8 35.8 100
Younts Peak 8350 11.9 15.2 78 15.9 16.4 97
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Basin Index (%) 87 96
MADISON HEADWATERS IN WYOMING
Black Bear 8170 33.0 39.5 84 39.3 39.3 100
Canyon 7870 10.2 -M * 14.3 -M *
Madison Plateau 7750 19.8 23.3 85 24.2 26.3 92
West Yellowstone 6700 2.8 4.7 60 13.8 15.5 89
Whiskey Creek 6800 12.2 15.4 79 20.3 22.1 92
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Basin Index (%) 82 95
YELLOWSTONE HEADWATERS IN WYOMING
Beartooth Lake 9360 16.7 23.7 70 16.4 22.2 74
Canyon 7870 10.2 -M * 14.3 -M *
Evening Star 9200 20.2 26.7 76 27.8 30.5 91
Fisher Creek 9100 23.5 35.6 66 27.1 35.8 76
Monument Peak 8850 14.6 22.4 65 19.2 24.0 80
Northeast Entrance 7350 .1 5.7 2 11.2 14.0 80
Parker Peak 9400 21.0 24.2 87 23.3 21.4 109
Sylvan Lake 8420 13.9 20.0 70 24.1 25.2 96
Thumb Divide 7980 15.2 16.4 93 19.1 19.8 96
Two Ocean Plateau 9240 29.5 32.8 90 27.7 28.6 97
White Mill 8700 17.9 25.6 70 19.0 24.6 77
Wolverine 7650 2.3 6.5 35 13.8 13.3 104
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Basin Index (%) 73 88
WIND RIVER
Burroughs Creek 8750 7.4 -M * 12.1 -M *
Castle Creek 8400 1.4 3.3 42 8.6 9.1 95
Cold Springs 9630 3.8 5.9 64 12.0 10.4 115
Deer Park 9700 16.2 15.6 104 21.4 20.4 105
Hobbs Park 10100 16.1 15.6 103 17.5 15.1 116
Kirwin 9550 13.3 11.8 113 16.7 14.0 119
Little Warm 9370 8.8 10.2 86 14.0 12.8 109
South Pass 9040 13.7 15.1 91 18.2 17.5 104
St. Lawrence Alt 8620 .2 -M * 10.6 -M *
Togwotee Pass 9580 19.5 24.9 78 20.9 26.2 80
Townsend Creek 8700 8.4 9.5 88 14.6 13.2 111
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Basin Index (%) 90 104
BIGHORN BASIN
Bald Mtn. 9380 14.7 20.5 72 14.3 17.8 80
Bear Trap Meadow 8200 4.3 3.4 126 10.5 10.2 103
Bone Springs Div 9350 14.7 17.8 83 13.6 17.4 78
Grave Springs 8550 6.9 8.2 84 10.9 11.2 97
Kirwin 9550 13.3 11.8 113 16.7 14.0 119
Marquette 8760 14.1 8.0 176 17.7 11.2 158
Middle Powder 7760 11.6 11.1 105 11.4 11.2 102
Owl Creek 8975 3.4 3.1 110 9.4 7.4 127
Powder River Pass 9480 5.2 10.6 49 12.7 14.9 85
Shell Creek 9580 14.2 16.6 86 14.9 15.4 97
Timber Creek 7950 5.9 4.4 134 13.2 9.2 143
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Basin Index (%) 94 104
SHOSHONE RIVER
Blackwater 9780 23.3 25.7 91 24.9 24.4 102
Evening Star 9200 20.2 26.7 76 27.8 30.5 91
Marquette 8760 14.1 8.0 176 17.7 11.2 158
Sylvan Lake 8420 13.9 20.0 70 24.1 25.2 96
Sylvan Road 7120 -M 7.8 * 15.9 17.8 89
Younts Peak 8350 11.9 15.2 78 15.9 16.4 97
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Basin Index (%) 87 101
POWDER RIVER
Bear Trap Meadow 8200 4.3 3.4 126 10.5 10.2 103
Cloud Peak Reservoir 9860 12.8 16.0 80 16.4 15.6 105
Grave Springs 8550 6.9 8.2 84 10.9 11.2 97
Hansen Sawmill 8360 4.1 4.9 84 11.0 10.0 110
Middle Powder 7760 11.6 11.1 105 11.4 11.2 102
Powder River Pass 9480 5.2 10.6 49 12.7 14.9 85
Soldier Park 8720 2.2 6.4 34 11.6 10.9 106
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Basin Index (%) 78 101
TONGUE RIVER
Big Goose 7990 6.8 8.6 79 13.0 11.7 111
Bone Springs Div 9350 14.7 17.8 83 13.6 17.4 78
Burgess Junction 7880 9.4 12.0 78 13.8 14.0 99
Dome Lake 8880 -M 12.0 * 13.7 15.0 91
Little Goose 8870 9.0 10.6 85 14.9 14.2 105
Sucker Creek 8880 10.5 12.9 81 16.8 16.0 105
Tie Creek 6870 .0 3.6 0 13.7 13.2 104
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Basin Index (%) 77 98
BELLE FOURCHE
Blind Park 6890 -M 3.4 * -M 12.8 *
Cole Canyon 5910 .0 1.4 0 8.2 10.2 80
North Rapid Creek 6130 .4 3.2 12 10.0 10.6 94
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Basin Index (%) 9 88
CHEYENNE RIVER BASIN
Blind Park 6890 -M 3.4 * -M 12.8 *
North Rapid Creek 6130 .4 3.2 12 10.0 10.6 94
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Basin Index (%) 12 94
UPPER N. PLATTE
Arapaho Ridge 10976 22.0 23.7 93 23.6 24.4 97
Blackhall Mtn 9839 33.6 33.1 102 36.8 32.7 113
Cinnabar Park 9707 18.5 20.0 92 24.4 24.7 99
Columbine 9167 18.4 20.8 88 28.0 27.8 101
Divide Peak 8730 16.0 17.7 90 25.0 23.8 105
Joe Wright 10158 21.1 22.6 93 27.4 29.0 94
Laprele Creek 8390 4.9 7.0 70 12.6 13.4 94
Med Bow 10512 41.8 -M * 36.0 -M *
Never Summer 10323 21.9 21.8 100 17.5 18.8 93
North French Creek 10153 27.9 31.6 88 29.6 30.4 97
Old Battle 9860 33.3 34.3 97 35.3 36.8 96
Rawah 9069 10.5 9.0 117 18.5 18.2 102
Sage Creek Basin 7850 5.8 4.2 138 15.7 14.3 110
Sand Lake 10098 32.2 30.6 105 31.2 27.6 113
South Brush Creek 8495 7.8 8.5 92 13.8 15.2 91
Tower 10620 42.9 46.0 93 42.6 44.2 96
Webber Springs 9260 20.4 21.6 94 27.4 28.1 98
Whiskey Park 9020 28.0 26.6 105 31.4 30.6 103
Willow Creek Pass 9523 15.2 14.8 103 16.7 15.4 108
Zirkel 9338 19.1 23.8 80 30.7 33.3 92
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Basin Index (%) 96 100
SWEETWATER
Deer Park 9700 16.2 15.6 104 21.4 20.4 105
Larsen Creek 9000 3.3 6.7 49 15.0 15.2 99
South Pass 9040 13.7 15.1 91 18.2 17.5 104
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Basin Index (%) 89 103
LOWER N. PLATTE
Casper Mtn. 7920 9.8 13.4 73 16.1 16.0 101
Laprele Creek 8390 4.9 7.0 70 12.6 13.4 94
Reno Hill 8430 9.5 14.0 68 15.7 17.6 89
Windy Peak 7915 7.0 6.9 101 11.8 12.0 98
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Basin Index (%) 76 95
LARAMIE RIVER
Brooklyn Lake 10250 23.4 23.0 102 27.3 24.2 113
Cinnabar Park 9707 18.5 20.0 92 24.4 24.7 99
Crow Creek 8335 1.1 1.7 65 11.1 11.9 93
Deadman Hill 10239 20.9 19.1 109 20.1 20.4 99
Rawah 9069 10.5 9.0 117 18.5 18.2 102
Roach 9740 13.6 16.5 82 18.6 21.0 89
Windy Peak 7915 7.0 6.9 101 11.8 12.0 98
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Basin Index (%) 99 100
S. PLATTE
Crow Creek 8335 1.1 1.7 65 11.1 11.9 93
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Basin Index (%) 65 93
LITTLE SNAKE RIVER
Battle Mountain 7498 1.8 4.0 45 19.2 16.8 114
Divide Peak 8730 16.0 17.7 90 25.0 23.8 105
Elk River 8739 10.9 14.6 75 21.3 21.4 100
Elkhead Divide 8800 18.3 -M * 25.2 -M *
Little Snake River 8928 24.3 24.3 100 35.2 34.8 101
Old Battle 9860 33.3 34.3 97 35.3 36.8 96
Sage Creek Basin 7850 5.8 4.2 138 15.7 14.3 110
Sandstone RS 8152 8.7 9.4 93 19.0 19.1 99
Whiskey Park 9020 28.0 26.6 105 31.4 30.6 103
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Basin Index (%) 95 102
UPPER GREEN RIVER
Big Sandy Opening 9080 11.2 12.6 89 15.3 14.1 109
Blind Bull Sum 8650 24.5 25.0 98 17.0 19.2 89
East Rim Divide 7930 .3 9.2 3 11.5 11.8 97
Elkhart Park G.S. 9400 8.5 12.4 69 12.8 13.7 93
Gros Ventre Summit 8750 10.6 13.3 80 14.1 13.6 104
Gunsight Pass 9820 11.9 13.0 92 15.5 15.4 101
Indian Creek 9425 20.9 24.0 87 20.7 20.8 100
Kendall R.S. 7740 3.6 7.1 51 13.3 14.0 95
Larsen Creek 9000 3.3 6.7 49 15.0 15.2 99
Loomis Park 8240 7.8 12.6 62 15.5 17.4 89
New Fork Lake 8340 2.7 7.9 34 -M 11.4 *
Pocket Creek 9360 -M -M * -M -M *
Snider Basin 8060 4.7 10.0 47 13.0 14.7 88
Spring Creek Divide 9000 23.1 25.8 90 22.7 24.8 92
Triple Peak 8500 17.7 20.1 88 25.2 27.2 93
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Basin Index (%) 76 95
LOWER GREEN RIVER
Blacks Fork Jct 8869 5.5 5.9 93 14.4 13.6 106
Buck Pasture 9632 11.3 -M * 17.2 -M *
EF Blacks Fork GS 9360 6.3 9.6 66 10.6 12.8 83
Hams Fork 7840 -M 6.3 * 11.9 11.6 103
Henrys Fork 10182 -M -M * 14.1 -M *
Hewinta 9500 6.1 7.4 82 15.4 15.2 101
Hickerson Park 9122 4.2 5.0 84 14.3 11.9 120
Hole-in-Rock 9168 3.6 5.0 72 11.3 11.4 99
Indian Creek 9425 20.9 24.0 87 20.7 20.8 100
Kelley R.S. 8180 12.2 13.6 90 18.2 17.6 103
Spirit Lk 10235 12.6 13.2 95 19.7 19.4 102
Steel Creek Park 10158 14.8 16.6 89 18.6 17.8 104
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Basin Index (%) 86 102
UPPER BEAR RIVER
Bear River RS 8777 3.1 1.2 258 14.8 13.1 113
Bug Lake 7987 16.2 16.6 98 23.6 19.1 124
Burts Miller Ranch 8000 .3 .0 * 12.5 8.7 144
Chalk Creek #1 9171 21.4 22.2 96 26.4 24.5 108
Giveout 6930 .7 1.3 54 13.5 13.5 100
Hayden Fork 9130 8.6 10.8 80 23.8 22.0 108
Kelley R.S. 8180 12.2 13.6 90 18.2 17.6 103
Lily Lake 9133 9.2 10.5 88 16.4 16.5 99
Monte Cristo 8932 26.6 25.6 104 30.0 27.4 109
Salt River Summit 7640 10.2 10.8 94 15.3 17.3 88
Spring Creek Divide 9000 23.1 25.8 90 22.7 24.8 92
Trial Lake 9992 27.0 22.2 122 27.9 23.7 118
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Basin Index (%) 99 107
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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.
