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 10 , 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 15.5 15.6 99 20.9 20.2 103
Blind Bull Sum 8650 24.1 24.6 98 16.8 17.7 95
Cottonwood Creek 7670 21.5 21.0 102 26.0 25.4 102
East Rim Divide 7930 8.7 10.2 85 11.2 11.2 100
Grand Targhee 9260 40.0 44.6 90 26.6 32.0 83
Granite Creek 6770 15.1 14.4 105 16.7 18.6 90
Grassy Lake 7265 28.8 32.5 89 35.2 35.3 100
Gros Ventre Summit 8750 12.0 12.8 94 13.9 12.2 114
Gunsight Pass 9820 13.5 13.1 103 15.2 14.1 108
Lewis Lake Divide 7850 31.9 31.2 102 35.8 33.2 108
Loomis Park 8240 11.8 15.0 79 15.5 16.8 92
Phillips Bench 8200 25.2 26.3 96 28.4 26.6 107
Salt River Summit 7640 15.9 12.6 126 15.2 16.3 93
Snake River Station 6920 15.4 15.6 99 23.3 22.5 104
Somsen Ranch 6800 17.3 9.8 177 21.8 16.6 131
Spring Creek Divide 9000 -M 25.1 * -M 23.6 *
Thumb Divide 7980 17.3 16.4 105 18.4 17.8 103
Togwotee Pass 9580 20.3 23.7 86 20.2 24.7 82
Triple Peak 8500 23.8 23.2 103 23.8 25.2 94
Two Ocean Plateau 9240 28.4 30.4 93 26.7 27.0 99
Willow Creek 8080 34.3 29.6 116 35.5 33.3 107
Younts Peak 8350 14.5 14.6 99 15.6 14.9 105
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Basin Index (%) 100 100
MADISON HEADWATERS IN WYOMING
Black Bear 8170 33.0 38.2 86 38.5 37.3 103
Canyon 7870 11.0 -M * 14.1 -M *
Madison Plateau 7750 20.4 23.0 89 23.9 25.0 96
West Yellowstone 6700 8.3 9.0 92 13.8 14.0 99
Whiskey Creek 6800 13.8 14.8 93 20.3 20.2 100
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Basin Index (%) 89 100
YELLOWSTONE HEADWATERS IN WYOMING
Beartooth Lake 9360 15.8 22.0 72 15.3 20.2 76
Canyon 7870 11.0 -M * 14.1 -M *
Evening Star 9200 21.1 25.2 84 26.8 28.3 95
Fisher Creek 9100 23.1 33.6 69 26.1 33.5 78
Monument Peak 8850 14.9 21.2 70 18.4 21.6 85
Northeast Entrance 7350 5.6 8.4 67 10.7 13.0 82
Parker Peak 9400 21.2 21.4 99 22.5 20.2 111
Sylvan Lake 8420 16.0 19.5 82 23.5 23.6 100
Thumb Divide 7980 17.3 16.4 105 18.4 17.8 103
Two Ocean Plateau 9240 28.4 30.4 93 26.7 27.0 99
White Mill 8700 17.5 24.8 71 18.4 23.0 80
Wolverine 7650 8.8 9.0 98 13.5 12.8 105
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Basin Index (%) 82 91
WIND RIVER
Burroughs Creek 8750 10.8 -M * 12.0 -M *
Castle Creek 8400 6.2 6.0 103 8.3 8.8 94
Cold Springs 9630 8.2 6.8 121 11.7 9.6 122
Deer Park 9700 18.5 15.6 119 21.2 18.5 115
Hobbs Park 10100 16.5 14.4 115 17.0 13.8 123
Kirwin 9550 13.5 10.8 125 16.0 12.2 131
Little Warm 9370 10.4 10.0 104 13.6 11.8 115
South Pass 9040 15.8 15.0 105 18.0 16.2 111
St. Lawrence Alt 8620 6.2 -M * 10.4 -M *
Togwotee Pass 9580 20.3 23.7 86 20.2 24.7 82
Townsend Creek 8700 10.2 9.7 105 14.2 11.3 126
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Basin Index (%) 107 110
BIGHORN BASIN
Bald Mtn. 9380 14.5 19.8 73 13.5 16.2 83
Bear Trap Meadow 8200 6.8 5.6 121 9.6 9.1 105
Bone Springs Div 9350 13.6 17.7 77 12.6 16.0 79
Grave Springs 8550 8.0 8.4 95 10.3 9.8 105
Kirwin 9550 13.5 10.8 125 16.0 12.2 131
Marquette 8760 12.1 7.5 161 15.4 9.5 162
Middle Powder 7760 11.5 11.2 103 10.6 10.0 106
Owl Creek 8975 5.7 5.6 102 7.7 6.4 120
Powder River Pass 9480 7.3 10.7 68 11.7 13.0 90
Shell Creek 9580 13.4 15.8 85 13.7 13.9 99
Timber Creek 7950 8.0 5.2 154 12.4 7.8 159
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Basin Index (%) 97 108
SHOSHONE RIVER
Blackwater 9780 22.6 23.6 96 23.6 22.6 104
Evening Star 9200 21.1 25.2 84 26.8 28.3 95
Marquette 8760 12.1 7.5 161 15.4 9.5 162
Sylvan Lake 8420 16.0 19.5 82 23.5 23.6 100
Sylvan Road 7120 5.8 10.4 56 15.6 16.2 96
Younts Peak 8350 14.5 14.6 99 15.6 14.9 105
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Basin Index (%) 91 105
POWDER RIVER
Bear Trap Meadow 8200 6.8 5.6 121 9.6 9.1 105
Cloud Peak Reservoir 9860 12.7 14.8 86 14.6 13.8 106
Grave Springs 8550 8.0 8.4 95 10.3 9.8 105
Hansen Sawmill 8360 6.0 6.1 98 9.4 8.6 109
Middle Powder 7760 11.5 11.2 103 10.6 10.0 106
Powder River Pass 9480 7.3 10.7 68 11.7 13.0 90
Soldier Park 8720 4.3 7.1 61 10.0 9.4 106
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Basin Index (%) 89 103
TONGUE RIVER
Big Goose 7990 6.9 8.9 78 11.2 10.4 108
Bone Springs Div 9350 13.6 17.7 77 12.6 16.0 79
Burgess Junction 7880 9.1 11.4 80 12.5 12.6 99
Dome Lake 8880 -M 12.0 * 11.8 13.2 89
Little Goose 8870 8.9 9.8 91 12.9 12.4 104
Sucker Creek 8880 10.9 12.6 87 15.1 14.4 105
Tie Creek 6870 2.0 4.6 43 12.7 11.0 115
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Basin Index (%) 79 99
BELLE FOURCHE
Blind Park 6890 .6 6.1 10 7.1 11.4 62
Cole Canyon 5910 1.9 4.2 45 7.6 9.5 80
North Rapid Creek 6130 4.7 5.8 81 8.9 9.2 97
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Basin Index (%) 45 78
CHEYENNE RIVER BASIN
Blind Park 6890 .6 6.1 10 7.1 11.4 62
North Rapid Creek 6130 4.7 5.8 81 8.9 9.2 97
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Basin Index (%) 45 78
UPPER N. PLATTE
Arapaho Ridge 10976 21.8 22.5 97 22.0 22.2 99
Blackhall Mtn 9839 33.1 30.3 109 35.3 29.7 119
Cinnabar Park 9707 20.2 20.3 100 23.3 23.6 99
Columbine 9167 26.7 22.6 118 26.4 25.8 102
Divide Peak 8730 21.8 19.8 110 24.8 21.8 114
Joe Wright 10158 18.8 21.4 88 23.7 26.1 91
Laprele Creek 8390 7.9 9.2 86 11.6 11.8 98
Med Bow 10512 39.6 -M * 33.8 -M *
Never Summer 10323 19.1 20.6 93 14.8 17.8 83
North French Creek 10153 26.7 30.2 88 27.4 27.6 99
Old Battle 9860 33.9 31.7 107 34.4 35.2 98
Rawah 9069 11.7 10.4 112 16.4 16.0 102
Sage Creek Basin 7850 14.6 11.2 130 15.6 13.3 117
Sand Lake 10098 30.4 28.5 107 29.1 25.6 114
South Brush Creek 8495 10.0 10.8 93 12.4 13.8 90
Tower 10620 41.9 44.2 95 40.5 40.0 101
Webber Springs 9260 23.9 22.5 106 26.6 25.6 104
Whiskey Park 9020 32.1 27.0 119 30.8 27.8 111
Willow Creek Pass 9523 14.3 13.4 107 15.0 13.7 109
Zirkel 9338 26.0 27.4 95 29.4 30.8 95
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Basin Index (%) 103 103
SWEETWATER
Deer Park 9700 18.5 15.6 119 21.2 18.5 115
Larsen Creek 9000 9.1 8.9 102 14.9 13.5 110
South Pass 9040 15.8 15.0 105 18.0 16.2 111
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Basin Index (%) 110 112
LOWER N. PLATTE
Casper Mtn. 7920 12.1 13.7 88 15.6 13.8 113
Laprele Creek 8390 7.9 9.2 86 11.6 11.8 98
Reno Hill 8430 10.7 14.2 75 14.9 15.5 96
Windy Peak 7915 8.6 7.6 113 10.4 10.4 100
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Basin Index (%) 88 102
LARAMIE RIVER
Brooklyn Lake 10250 23.9 22.4 107 25.6 22.2 115
Cinnabar Park 9707 20.2 20.3 100 23.3 23.6 99
Crow Creek 8335 5.1 4.8 106 10.4 10.7 97
Deadman Hill 10239 19.8 16.4 121 18.5 18.1 102
Rawah 9069 11.7 10.4 112 16.4 16.0 102
Roach 9740 14.6 15.4 95 17.7 19.2 92
Windy Peak 7915 8.6 7.6 113 10.4 10.4 100
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Basin Index (%) 107 102
S. PLATTE
Crow Creek 8335 5.1 4.8 106 10.4 10.7 97
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Basin Index (%) 106 97
LITTLE SNAKE RIVER
Battle Mountain 7498 11.0 9.1 121 18.9 15.2 124
Divide Peak 8730 21.8 19.8 110 24.8 21.8 114
Elk River 8739 19.4 17.2 113 20.7 19.6 106
Elkhead Divide 8800 23.6 -M * 24.6 -M *
Little Snake River 8928 29.9 26.5 113 34.5 32.8 105
Old Battle 9860 33.9 31.7 107 34.4 35.2 98
Sage Creek Basin 7850 14.6 11.2 130 15.6 13.3 117
Sandstone RS 8152 17.6 12.9 136 18.6 18.2 102
Whiskey Park 9020 32.1 27.0 119 30.8 27.8 111
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Basin Index (%) 116 108
UPPER GREEN RIVER
Big Sandy Opening 9080 14.1 13.4 105 15.2 13.5 113
Blind Bull Sum 8650 24.1 24.6 98 16.8 17.7 95
East Rim Divide 7930 8.7 10.2 85 11.2 11.2 100
Elkhart Park G.S. 9400 11.8 13.0 91 12.9 12.8 101
Gros Ventre Summit 8750 12.0 12.8 94 13.9 12.2 114
Gunsight Pass 9820 13.5 13.1 103 15.2 14.1 108
Indian Creek 9425 23.8 23.6 101 20.5 19.7 104
Kendall R.S. 7740 8.8 10.4 85 13.2 13.2 100
Larsen Creek 9000 9.1 8.9 102 14.9 13.5 110
Loomis Park 8240 11.8 15.0 79 15.5 16.8 92
New Fork Lake 8340 8.4 10.4 81 6.7 10.7 63
Pocket Creek 9360 -M -M * -M -M *
Snider Basin 8060 10.3 12.6 82 12.9 13.9 93
Spring Creek Divide 9000 -M 25.1 * -M 23.6 *
Triple Peak 8500 23.8 23.2 103 23.8 25.2 94
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Basin Index (%) 94 99
LOWER GREEN RIVER
Blacks Fork Jct 8869 11.4 8.2 139 14.3 12.2 117
Buck Pasture 9632 16.0 -M * 16.6 -M *
EF Blacks Fork GS 9360 11.7 11.0 106 10.4 11.0 95
Hams Fork 7840 -M 10.2 * 11.5 11.1 104
Henrys Fork 10182 -M -M * 13.8 -M *
Hewinta 9500 13.6 10.4 131 15.2 13.4 113
Hickerson Park 9122 11.1 7.4 150 13.8 10.6 130
Hole-in-Rock 9168 9.4 7.1 132 11.1 10.4 107
Indian Creek 9425 23.8 23.6 101 20.5 19.7 104
Kelley R.S. 8180 16.6 14.4 115 18.0 16.3 110
Spirit Lk 10235 15.7 14.1 111 19.3 17.0 114
Steel Creek Park 10158 15.9 15.1 105 18.2 16.8 108
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Basin Index (%) 116 110
UPPER BEAR RIVER
Bear River RS 8777 12.3 7.8 158 14.8 12.0 123
Bug Lake 7987 22.5 18.4 122 23.5 18.4 128
Burts Miller Ranch 8000 8.5 3.8 224 12.7 8.0 159
Chalk Creek #1 9171 25.2 22.6 112 25.8 23.0 112
Giveout 6930 10.7 6.9 155 13.3 12.4 107
Hayden Fork 9130 19.2 14.4 133 23.6 20.8 113
Kelley R.S. 8180 16.6 14.4 115 18.0 16.3 110
Lily Lake 9133 14.4 12.7 113 16.3 15.3 107
Monte Cristo 8932 31.0 27.4 113 29.5 26.4 112
Salt River Summit 7640 15.9 12.6 126 15.2 16.3 93
Spring Creek Divide 9000 -M 25.1 * -M 23.6 *
Trial Lake 9992 29.4 22.3 132 27.3 22.4 122
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Basin Index (%) 126 115
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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.
