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: APRIL 8 , 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 15.8 98 20.8 20.0 104
Blind Bull Sum 8650 24.0 24.0 100 16.8 17.6 95
Cottonwood Creek 7670 21.4 20.8 103 26.1 25.2 104
East Rim Divide 7930 8.9 10.2 87 11.0 11.1 99
Grand Targhee 9260 39.7 43.4 91 26.4 31.4 84
Granite Creek 6770 15.3 14.6 105 16.6 18.6 89
Grassy Lake 7265 28.7 32.8 88 35.1 34.8 101
Gros Ventre Summit 8750 11.8 12.8 92 13.9 12.0 116
Gunsight Pass 9820 13.4 13.0 103 15.1 13.8 109
Lewis Lake Divide 7850 31.8 30.6 104 35.7 32.4 110
Loomis Park 8240 12.2 15.2 80 15.3 16.6 92
Phillips Bench 8200 24.9 26.2 95 28.3 26.4 107
Salt River Summit 7640 15.7 12.6 125 15.0 16.1 93
Snake River Station 6920 15.4 16.0 96 23.2 22.4 104
Somsen Ranch 6800 17.5 10.2 172 21.6 16.6 130
Spring Creek Divide 9000 -M 25.0 * -M 23.4 *
Thumb Divide 7980 17.2 16.4 105 18.3 17.6 104
Togwotee Pass 9580 20.3 23.2 88 20.0 24.5 82
Triple Peak 8500 23.8 22.8 104 23.6 24.8 95
Two Ocean Plateau 9240 28.3 29.2 97 26.6 26.6 100
Willow Creek 8080 34.3 29.3 117 35.3 32.8 108
Younts Peak 8350 14.3 14.6 98 15.4 14.7 105
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Basin Index (%) 100 101
MADISON HEADWATERS IN WYOMING
Black Bear 8170 32.5 38.0 86 38.4 37.0 104
Canyon 7870 10.9 -M * 14.0 -M *
Madison Plateau 7750 20.5 22.8 90 23.8 25.0 95
West Yellowstone 6700 8.5 9.3 91 13.8 13.8 100
Whiskey Creek 6800 13.7 14.8 93 20.2 19.9 102
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Basin Index (%) 89 101
YELLOWSTONE HEADWATERS IN WYOMING
Beartooth Lake 9360 15.6 21.5 73 15.2 19.8 77
Canyon 7870 10.9 -M * 14.0 -M *
Evening Star 9200 20.9 25.2 83 26.6 28.2 94
Fisher Creek 9100 23.0 32.8 70 25.8 32.9 78
Monument Peak 8850 14.6 20.6 71 18.0 21.6 83
Northeast Entrance 7350 5.6 8.4 67 10.7 13.0 82
Parker Peak 9400 21.0 21.4 98 22.3 20.0 112
Sylvan Lake 8420 15.8 19.3 82 23.3 23.3 100
Thumb Divide 7980 17.2 16.4 105 18.3 17.6 104
Two Ocean Plateau 9240 28.3 29.2 97 26.6 26.6 100
White Mill 8700 17.3 24.2 71 18.2 23.0 79
Wolverine 7650 8.8 9.5 93 13.4 12.6 106
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Basin Index (%) 82 92
WIND RIVER
Burroughs Creek 8750 10.8 -M * 11.9 -M *
Castle Creek 8400 6.2 6.2 100 8.2 8.8 93
Cold Springs 9630 8.5 7.1 120 11.6 9.4 123
Deer Park 9700 18.6 15.0 124 21.1 18.0 117
Hobbs Park 10100 16.6 14.4 115 17.0 13.5 126
Kirwin 9550 13.3 10.4 128 16.0 12.0 133
Little Warm 9370 10.4 10.0 104 13.4 11.8 114
South Pass 9040 15.8 14.6 108 17.9 15.4 116
St. Lawrence Alt 8620 6.3 -M * 10.4 -M *
Togwotee Pass 9580 20.3 23.2 88 20.0 24.5 82
Townsend Creek 8700 10.2 9.4 109 14.1 11.0 128
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Basin Index (%) 109 112
BIGHORN BASIN
Bald Mtn. 9380 13.8 19.3 72 12.9 16.0 81
Bear Trap Meadow 8200 6.3 5.8 109 9.3 8.9 104
Bone Springs Div 9350 13.1 17.5 75 12.2 15.9 77
Grave Springs 8550 -M 8.2 * 9.8 9.2 107
Kirwin 9550 13.3 10.4 128 16.0 12.0 133
Marquette 8760 11.9 7.5 159 15.3 9.4 163
Middle Powder 7760 10.4 10.9 95 9.9 10.0 99
Owl Creek 8975 5.4 5.3 102 7.7 6.2 124
Powder River Pass 9480 7.0 10.6 66 11.5 12.8 90
Shell Creek 9580 12.9 15.4 84 13.3 13.8 96
Timber Creek 7950 8.2 5.0 164 12.4 7.8 159
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Basin Index (%) 95 107
SHOSHONE RIVER
Blackwater 9780 22.4 23.1 97 23.4 22.2 105
Evening Star 9200 20.9 25.2 83 26.6 28.2 94
Marquette 8760 11.9 7.5 159 15.3 9.4 163
Sylvan Lake 8420 15.8 19.3 82 23.3 23.3 100
Sylvan Road 7120 5.8 10.6 55 15.5 16.1 96
Younts Peak 8350 14.3 14.6 98 15.4 14.7 105
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Basin Index (%) 91 105
POWDER RIVER
Bear Trap Meadow 8200 6.3 5.8 109 9.3 8.9 104
Cloud Peak Reservoir 9860 12.5 14.8 84 14.4 13.6 106
Grave Springs 8550 -M 8.2 * 9.8 9.2 107
Hansen Sawmill 8360 5.9 6.0 98 9.2 8.4 110
Middle Powder 7760 10.4 10.9 95 9.9 10.0 99
Powder River Pass 9480 7.0 10.6 66 11.5 12.8 90
Soldier Park 8720 4.1 7.5 55 9.9 9.4 105
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Basin Index (%) 83 102
TONGUE RIVER
Big Goose 7990 6.7 8.8 76 11.0 10.2 108
Bone Springs Div 9350 13.1 17.5 75 12.2 15.9 77
Burgess Junction 7880 8.6 11.2 77 12.1 12.2 99
Dome Lake 8880 -M 11.6 * 11.5 13.0 88
Little Goose 8870 8.7 9.7 90 12.6 12.2 103
Sucker Creek 8880 10.6 12.4 85 14.7 14.0 105
Tie Creek 6870 1.7 4.6 37 12.4 10.8 115
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Basin Index (%) 77 98
BELLE FOURCHE
Blind Park 6890 .4 6.6 6 6.8 11.0 62
Cole Canyon 5910 1.3 4.4 30 7.2 9.4 77
North Rapid Creek 6130 4.6 6.0 77 8.7 8.8 99
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Basin Index (%) 37 78
CHEYENNE RIVER BASIN
Blind Park 6890 .4 6.6 6 6.8 11.0 62
North Rapid Creek 6130 4.6 6.0 77 8.7 8.8 99
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Basin Index (%) 40 78
UPPER N. PLATTE
Arapaho Ridge 10976 21.7 22.5 96 21.9 21.6 101
Blackhall Mtn 9839 32.8 30.4 108 35.2 29.4 120
Cinnabar Park 9707 20.3 20.3 100 23.2 23.6 98
Columbine 9167 26.6 22.6 118 26.1 25.6 102
Divide Peak 8730 21.8 20.0 109 24.7 21.6 114
Joe Wright 10158 18.8 20.9 90 23.5 26.0 90
Laprele Creek 8390 7.8 9.4 83 11.5 11.8 97
Med Bow 10512 39.4 -M * 33.7 -M *
Never Summer 10323 19.0 20.6 92 14.6 17.2 85
North French Creek 10153 26.9 29.9 90 27.2 26.8 101
Old Battle 9860 33.8 31.7 107 34.4 34.8 99
Rawah 9069 11.5 10.8 106 16.4 15.9 103
Sage Creek Basin 7850 15.3 12.2 125 15.6 13.3 117
Sand Lake 10098 30.2 28.0 108 28.8 25.0 115
South Brush Creek 8495 10.2 11.4 89 12.3 13.8 89
Tower 10620 41.7 43.8 95 40.3 39.3 103
Webber Springs 9260 24.0 22.6 106 26.5 25.4 104
Whiskey Park 9020 32.2 27.0 119 30.7 27.6 111
Willow Creek Pass 9523 14.4 13.2 109 14.9 13.6 110
Zirkel 9338 26.1 28.4 92 29.2 30.7 95
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Basin Index (%) 102 103
SWEETWATER
Deer Park 9700 18.6 15.0 124 21.1 18.0 117
Larsen Creek 9000 9.4 9.4 100 14.8 13.5 110
South Pass 9040 15.8 14.6 108 17.9 15.4 116
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Basin Index (%) 112 115
LOWER N. PLATTE
Casper Mtn. 7920 12.0 13.6 88 15.5 13.8 112
Laprele Creek 8390 7.8 9.4 83 11.5 11.8 97
Reno Hill 8430 10.5 14.0 75 14.8 15.2 97
Windy Peak 7915 8.6 7.8 110 10.3 10.2 101
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Basin Index (%) 87 102
LARAMIE RIVER
Brooklyn Lake 10250 23.7 22.2 107 25.4 21.8 117
Cinnabar Park 9707 20.3 20.3 100 23.2 23.6 98
Crow Creek 8335 5.2 5.6 93 10.2 10.7 95
Deadman Hill 10239 19.7 16.0 123 18.4 18.0 102
Rawah 9069 11.5 10.8 106 16.4 15.9 103
Roach 9740 14.6 15.3 95 17.6 19.1 92
Windy Peak 7915 8.6 7.8 110 10.3 10.2 101
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Basin Index (%) 106 102
S. PLATTE
Crow Creek 8335 5.2 5.6 93 10.2 10.7 95
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Basin Index (%) 93 95
LITTLE SNAKE RIVER
Battle Mountain 7498 11.0 9.8 112 18.9 15.1 125
Divide Peak 8730 21.8 20.0 109 24.7 21.6 114
Elk River 8739 19.4 17.0 114 20.6 19.2 107
Elkhead Divide 8800 23.6 -M * 24.6 -M *
Little Snake River 8928 30.0 27.1 111 34.4 32.8 105
Old Battle 9860 33.8 31.7 107 34.4 34.8 99
Sage Creek Basin 7850 15.3 12.2 125 15.6 13.3 117
Sandstone RS 8152 17.5 12.9 136 18.5 17.8 104
Whiskey Park 9020 32.2 27.0 119 30.7 27.6 111
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Basin Index (%) 115 109
UPPER GREEN RIVER
Big Sandy Opening 9080 13.9 13.0 107 15.0 13.0 115
Blind Bull Sum 8650 24.0 24.0 100 16.8 17.6 95
East Rim Divide 7930 8.9 10.2 87 11.0 11.1 99
Elkhart Park G.S. 9400 11.8 12.6 94 12.7 12.6 101
Gros Ventre Summit 8750 11.8 12.8 92 13.9 12.0 116
Gunsight Pass 9820 13.4 13.0 103 15.1 13.8 109
Indian Creek 9425 23.7 23.6 100 20.4 19.6 104
Kendall R.S. 7740 9.1 11.0 83 13.1 13.1 100
Larsen Creek 9000 9.4 9.4 100 14.8 13.5 110
Loomis Park 8240 12.2 15.2 80 15.3 16.6 92
New Fork Lake 8340 8.7 10.6 82 6.4 10.6 60
Pocket Creek 9360 -M -M * -M -M *
Snider Basin 8060 10.1 12.9 78 12.7 13.8 92
Spring Creek Divide 9000 -M 25.0 * -M 23.4 *
Triple Peak 8500 23.8 22.8 104 23.6 24.8 95
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Basin Index (%) 95 99
LOWER GREEN RIVER
Blacks Fork Jct 8869 11.6 8.4 138 14.3 12.2 117
Buck Pasture 9632 16.3 -M * 16.6 -M *
EF Blacks Fork GS 9360 11.5 11.2 103 10.4 10.8 96
Hams Fork 7840 -M 10.8 * 11.4 11.0 104
Henrys Fork 10182 -M -M * 14.0 -M *
Hewinta 9500 13.1 10.7 122 15.1 13.4 113
Hickerson Park 9122 11.2 7.0 160 13.8 10.4 133
Hole-in-Rock 9168 9.3 7.2 129 10.8 10.2 106
Indian Creek 9425 23.7 23.6 100 20.4 19.6 104
Kelley R.S. 8180 16.6 14.6 114 18.0 16.0 112
Spirit Lk 10235 15.6 14.1 111 19.3 16.9 114
Steel Creek Park 10158 16.0 14.7 109 18.2 16.4 111
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Basin Index (%) 115 111
UPPER BEAR RIVER
Bear River RS 8777 12.8 8.2 156 14.8 11.8 125
Bug Lake 7987 22.8 18.2 125 23.5 18.2 129
Burts Miller Ranch 8000 8.7 4.6 189 12.6 7.8 162
Chalk Creek #1 9171 25.1 22.5 112 25.6 22.6 113
Giveout 6930 10.4 7.7 135 13.1 12.0 109
Hayden Fork 9130 19.4 14.8 131 23.5 20.6 114
Kelley R.S. 8180 16.6 14.6 114 18.0 16.0 112
Lily Lake 9133 14.6 12.4 118 16.3 15.2 107
Monte Cristo 8932 31.1 27.4 114 29.5 26.4 112
Salt River Summit 7640 15.7 12.6 125 15.0 16.1 93
Spring Creek Divide 9000 -M 25.0 * -M 23.4 *
Trial Lake 9992 29.3 22.0 133 27.2 22.4 121
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Basin Index (%) 125 116
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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.
