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 TUESDAY: APRIL 9 , 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 20.0 104
Blind Bull Sum 8650 24.0 24.2 99 16.8 17.6 95
Cottonwood Creek 7670 21.4 21.0 102 26.2 25.2 104
East Rim Divide 7930 8.9 10.2 87 11.0 11.2 98
Grand Targhee 9260 39.8 43.8 91 26.6 31.4 85
Granite Creek 6770 15.1 14.6 103 16.6 18.6 89
Grassy Lake 7265 28.7 32.8 88 35.1 34.8 101
Gros Ventre Summit 8750 11.9 12.8 93 13.9 12.1 115
Gunsight Pass 9820 13.4 13.1 102 15.2 13.8 110
Lewis Lake Divide 7850 31.9 30.7 104 35.7 32.6 110
Loomis Park 8240 12.8 15.2 84 15.3 16.6 92
Phillips Bench 8200 25.0 26.2 95 28.3 26.4 107
Salt River Summit 7640 15.8 12.7 124 15.0 16.2 93
Snake River Station 6920 15.5 15.6 99 23.2 22.4 104
Somsen Ranch 6800 17.5 10.0 175 21.6 16.6 130
Spring Creek Divide 9000 -M 25.2 * -M 23.4 *
Thumb Divide 7980 17.3 16.4 105 18.3 17.6 104
Togwotee Pass 9580 20.3 23.4 87 20.2 24.5 82
Triple Peak 8500 23.7 22.9 103 -M 25.0 *
Two Ocean Plateau 9240 28.3 29.6 96 26.5 26.6 100
Willow Creek 8080 34.2 29.2 117 35.3 32.8 108
Younts Peak 8350 14.4 14.7 98 15.4 14.7 105
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Basin Index (%) 100 101
MADISON HEADWATERS IN WYOMING
Black Bear 8170 32.8 38.0 86 38.3 37.1 103
Canyon 7870 10.9 -M * 14.0 -M *
Madison Plateau 7750 20.5 22.9 90 23.8 25.0 95
West Yellowstone 6700 8.5 9.2 92 13.9 14.0 99
Whiskey Creek 6800 13.8 14.8 93 20.2 20.0 101
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Basin Index (%) 89 100
YELLOWSTONE HEADWATERS IN WYOMING
Beartooth Lake 9360 15.7 21.6 73 15.2 19.8 77
Canyon 7870 10.9 -M * 14.0 -M *
Evening Star 9200 21.0 25.2 83 26.6 28.2 94
Fisher Creek 9100 23.0 33.2 69 25.8 33.0 78
Monument Peak 8850 14.6 20.8 70 18.0 21.6 83
Northeast Entrance 7350 5.6 8.4 67 10.7 13.0 82
Parker Peak 9400 21.1 21.4 99 22.4 20.1 111
Sylvan Lake 8420 15.8 19.3 82 23.3 23.4 100
Thumb Divide 7980 17.3 16.4 105 18.3 17.6 104
Two Ocean Plateau 9240 28.3 29.6 96 26.5 26.6 100
White Mill 8700 17.3 24.6 70 18.2 23.0 79
Wolverine 7650 8.8 9.2 96 13.4 12.7 106
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Basin Index (%) 82 91
WIND RIVER
Burroughs Creek 8750 10.9 -M * 11.9 -M *
Castle Creek 8400 6.1 6.3 97 8.2 8.8 93
Cold Springs 9630 8.8 6.8 129 11.6 9.6 121
Deer Park 9700 18.7 15.2 123 21.2 18.4 115
Hobbs Park 10100 16.6 14.4 115 16.9 13.5 125
Kirwin 9550 13.3 10.6 125 16.0 12.1 132
Little Warm 9370 10.3 10.0 103 13.5 11.8 114
South Pass 9040 15.8 14.9 106 17.9 15.8 113
St. Lawrence Alt 8620 6.4 -M * 10.4 -M *
Togwotee Pass 9580 20.3 23.4 87 20.2 24.5 82
Townsend Creek 8700 10.2 9.4 109 14.1 11.2 126
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Basin Index (%) 108 111
BIGHORN BASIN
Bald Mtn. 9380 14.1 19.6 72 13.0 16.0 81
Bear Trap Meadow 8200 6.6 5.7 116 9.5 9.0 106
Bone Springs Div 9350 13.3 17.5 76 12.3 16.0 77
Grave Springs 8550 7.9 8.2 96 10.2 9.4 109
Kirwin 9550 13.3 10.6 125 16.0 12.1 132
Marquette 8760 12.0 7.5 160 15.3 9.4 163
Middle Powder 7760 11.5 11.0 105 10.5 10.0 105
Owl Creek 8975 5.5 5.5 100 7.6 6.3 121
Powder River Pass 9480 7.1 10.6 67 11.6 13.0 89
Shell Creek 9580 13.1 15.8 83 13.4 13.8 97
Timber Creek 7950 8.3 5.2 160 12.4 7.8 159
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Basin Index (%) 96 107
SHOSHONE RIVER
Blackwater 9780 22.5 23.4 96 23.5 22.5 104
Evening Star 9200 21.0 25.2 83 26.6 28.2 94
Marquette 8760 12.0 7.5 160 15.3 9.4 163
Sylvan Lake 8420 15.8 19.3 82 23.3 23.4 100
Sylvan Road 7120 5.9 10.5 56 15.6 16.2 96
Younts Peak 8350 14.4 14.7 98 15.4 14.7 105
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Basin Index (%) 91 105
POWDER RIVER
Bear Trap Meadow 8200 6.6 5.7 116 9.5 9.0 106
Cloud Peak Reservoir 9860 12.6 14.8 85 14.5 13.6 107
Grave Springs 8550 7.9 8.2 96 10.2 9.4 109
Hansen Sawmill 8360 5.9 6.1 97 9.3 8.6 108
Middle Powder 7760 11.5 11.0 105 10.5 10.0 105
Powder River Pass 9480 7.1 10.6 67 11.6 13.0 89
Soldier Park 8720 4.2 7.4 57 9.9 9.4 105
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Basin Index (%) 87 103
TONGUE RIVER
Big Goose 7990 6.8 8.8 77 11.2 10.4 108
Bone Springs Div 9350 13.3 17.5 76 12.3 16.0 77
Burgess Junction 7880 9.0 11.2 80 12.4 12.3 101
Dome Lake 8880 -M 11.6 * 11.7 13.2 89
Little Goose 8870 8.8 9.8 90 12.7 12.4 102
Sucker Creek 8880 10.8 12.6 86 15.0 14.0 107
Tie Creek 6870 2.0 4.6 43 12.7 10.9 117
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Basin Index (%) 79 99
BELLE FOURCHE
Blind Park 6890 .6 6.6 9 7.0 11.2 62
Cole Canyon 5910 1.8 4.2 43 7.6 9.5 80
North Rapid Creek 6130 4.7 5.9 80 9.0 8.8 102
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Basin Index (%) 43 80
CHEYENNE RIVER BASIN
Blind Park 6890 .6 6.6 9 7.0 11.2 62
North Rapid Creek 6130 4.7 5.9 80 9.0 8.8 102
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Basin Index (%) 42 80
UPPER N. PLATTE
Arapaho Ridge 10976 21.8 22.4 97 21.9 22.2 99
Blackhall Mtn 9839 32.9 30.4 108 35.2 29.6 119
Cinnabar Park 9707 20.4 20.3 100 23.2 23.6 98
Columbine 9167 26.5 22.6 117 26.0 25.6 102
Divide Peak 8730 21.9 20.0 110 24.7 21.7 114
Joe Wright 10158 18.7 21.2 88 23.4 26.1 90
Laprele Creek 8390 7.9 9.6 82 11.5 11.8 97
Med Bow 10512 39.4 -M * 33.7 -M *
Never Summer 10323 19.1 20.6 93 14.6 17.5 83
North French Creek 10153 26.8 30.0 89 27.2 27.0 101
Old Battle 9860 33.8 31.6 107 34.4 35.1 98
Rawah 9069 11.9 10.8 110 16.4 15.9 103
Sage Creek Basin 7850 15.2 11.8 129 15.6 13.3 117
Sand Lake 10098 30.3 28.3 107 28.8 25.2 114
South Brush Creek 8495 10.4 11.1 94 12.3 13.8 89
Tower 10620 41.7 44.1 95 40.2 40.0 100
Webber Springs 9260 24.1 22.6 107 26.5 25.6 104
Whiskey Park 9020 32.1 26.9 119 30.7 27.6 111
Willow Creek Pass 9523 14.4 13.4 107 14.9 13.7 109
Zirkel 9338 26.3 27.9 94 29.2 30.7 95
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Basin Index (%) 102 102
SWEETWATER
Deer Park 9700 18.7 15.2 123 21.2 18.4 115
Larsen Creek 9000 9.1 9.2 99 14.8 13.5 110
South Pass 9040 15.8 14.9 106 17.9 15.8 113
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Basin Index (%) 111 113
LOWER N. PLATTE
Casper Mtn. 7920 12.1 13.6 89 15.6 13.8 113
Laprele Creek 8390 7.9 9.6 82 11.5 11.8 97
Reno Hill 8430 10.6 14.0 76 14.8 15.3 97
Windy Peak 7915 8.6 7.8 110 10.4 10.4 100
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Basin Index (%) 87 102
LARAMIE RIVER
Brooklyn Lake 10250 23.8 22.4 106 25.4 22.0 115
Cinnabar Park 9707 20.4 20.3 100 23.2 23.6 98
Crow Creek 8335 5.3 5.2 102 10.2 10.7 95
Deadman Hill 10239 19.8 16.2 122 18.4 18.0 102
Rawah 9069 11.9 10.8 110 16.4 15.9 103
Roach 9740 14.7 15.4 95 17.6 19.2 92
Windy Peak 7915 8.6 7.8 110 10.4 10.4 100
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Basin Index (%) 107 102
S. PLATTE
Crow Creek 8335 5.3 5.2 102 10.2 10.7 95
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Basin Index (%) 102 95
LITTLE SNAKE RIVER
Battle Mountain 7498 11.0 9.3 118 18.8 15.2 124
Divide Peak 8730 21.9 20.0 110 24.7 21.7 114
Elk River 8739 19.7 16.8 117 20.5 19.4 106
Elkhead Divide 8800 23.6 -M * 24.3 -M *
Little Snake River 8928 30.0 26.5 113 34.3 32.8 105
Old Battle 9860 33.8 31.6 107 34.4 35.1 98
Sage Creek Basin 7850 15.2 11.8 129 15.6 13.3 117
Sandstone RS 8152 18.0 12.9 140 18.5 18.0 103
Whiskey Park 9020 32.1 26.9 119 30.7 27.6 111
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Basin Index (%) 117 108
UPPER GREEN RIVER
Big Sandy Opening 9080 14.0 13.2 106 15.1 13.4 113
Blind Bull Sum 8650 24.0 24.2 99 16.8 17.6 95
East Rim Divide 7930 8.9 10.2 87 11.0 11.2 98
Elkhart Park G.S. 9400 11.9 13.0 92 12.8 12.8 100
Gros Ventre Summit 8750 11.9 12.8 93 13.9 12.1 115
Gunsight Pass 9820 13.4 13.1 102 15.2 13.8 110
Indian Creek 9425 23.8 23.6 101 20.4 19.6 104
Kendall R.S. 7740 9.1 10.6 86 13.1 13.2 99
Larsen Creek 9000 9.1 9.2 99 14.8 13.5 110
Loomis Park 8240 12.8 15.2 84 15.3 16.6 92
New Fork Lake 8340 8.9 10.4 86 6.4 10.6 60
Pocket Creek 9360 -M -M * -M -M *
Snider Basin 8060 10.1 12.8 79 12.7 13.9 91
Spring Creek Divide 9000 -M 25.2 * -M 23.4 *
Triple Peak 8500 23.7 22.9 103 -M 25.0 *
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Basin Index (%) 95 100
LOWER GREEN RIVER
Blacks Fork Jct 8869 12.0 8.2 146 14.3 12.2 117
Buck Pasture 9632 16.4 -M * 16.6 -M *
EF Blacks Fork GS 9360 11.6 10.8 107 10.3 10.8 95
Hams Fork 7840 -M 10.4 * 11.5 11.1 104
Henrys Fork 10182 -M -M * 14.0 -M *
Hewinta 9500 13.6 10.2 133 15.1 13.4 113
Hickerson Park 9122 11.6 7.4 157 13.8 10.5 131
Hole-in-Rock 9168 9.6 7.0 137 10.8 10.2 106
Indian Creek 9425 23.8 23.6 101 20.4 19.6 104
Kelley R.S. 8180 16.6 14.5 114 18.0 16.0 112
Spirit Lk 10235 15.6 14.1 111 19.4 16.9 115
Steel Creek Park 10158 16.1 14.6 110 18.3 16.6 110
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Basin Index (%) 118 111
UPPER BEAR RIVER
Bear River RS 8777 13.4 8.2 163 14.8 12.0 123
Bug Lake 7987 23.2 18.0 129 23.5 18.2 129
Burts Miller Ranch 8000 8.9 4.5 198 12.6 8.0 158
Chalk Creek #1 9171 25.1 22.6 111 25.6 22.7 113
Giveout 6930 10.5 7.3 144 13.1 12.2 107
Hayden Fork 9130 19.7 14.6 135 23.5 20.6 114
Kelley R.S. 8180 16.6 14.5 114 18.0 16.0 112
Lily Lake 9133 14.8 12.6 117 16.3 15.3 107
Monte Cristo 8932 31.1 27.2 114 29.5 26.4 112
Salt River Summit 7640 15.8 12.7 124 15.0 16.2 93
Spring Creek Divide 9000 -M 25.2 * -M 23.4 *
Trial Lake 9992 29.3 22.2 132 27.2 22.4 121
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Basin Index (%) 127 115
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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.