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 2 , 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 16.5 16.7 99 20.5 19.6 105
Blind Bull Sum 8650 23.4 23.8 98 16.5 17.5 94
Cottonwood Creek 7670 21.3 21.7 98 25.5 24.4 105
East Rim Divide 7930 9.4 10.4 90 10.9 10.9 100
Grand Targhee 9260 38.3 41.1 93 25.9 29.9 87
Granite Creek 6770 15.5 15.6 99 16.6 17.8 93
Grassy Lake 7265 28.4 32.0 89 33.8 33.6 101
Gros Ventre Summit 8750 11.9 12.8 93 13.5 12.0 112
Gunsight Pass 9820 13.2 12.6 105 14.7 13.4 110
Lewis Lake Divide 7850 31.8 30.0 106 35.0 31.9 110
Loomis Park 8240 12.7 15.3 83 15.1 16.4 92
Phillips Bench 8200 25.4 25.9 98 28.0 26.1 107
Salt River Summit 7640 16.0 13.4 119 14.9 15.6 96
Snake River Station 6920 16.5 16.8 98 22.8 21.6 106
Somsen Ranch 6800 18.2 11.2 162 21.2 16.3 130
Spring Creek Divide 9000 -M 24.5 * -M 23.1 *
Thumb Divide 7980 17.2 16.0 108 18.0 17.0 106
Togwotee Pass 9580 20.0 23.0 87 19.4 24.1 80
Triple Peak 8500 23.4 22.6 104 23.4 24.4 96
Two Ocean Plateau 9240 27.3 28.2 97 25.8 25.4 102
Willow Creek 8080 33.8 29.2 116 34.4 32.0 108
Younts Peak 8350 14.4 14.2 101 15.0 14.4 104
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Basin Index (%) 100 101
MADISON HEADWATERS IN WYOMING
Black Bear 8170 33.3 37.0 90 37.2 35.7 104
Canyon 7870 11.0 -M * 13.7 -M *
Madison Plateau 7750 20.5 22.2 92 23.2 23.9 97
West Yellowstone 6700 9.2 10.3 89 13.7 13.7 100
Whiskey Creek 6800 13.8 15.4 90 19.9 19.2 104
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Basin Index (%) 90 102
YELLOWSTONE HEADWATERS IN WYOMING
Beartooth Lake 9360 14.8 21.2 70 14.3 19.4 74
Canyon 7870 11.0 -M * 13.7 -M *
Evening Star 9200 20.7 24.4 85 25.9 27.0 96
Fisher Creek 9100 22.5 32.2 70 25.0 31.6 79
Monument Peak 8850 14.7 20.0 74 17.7 20.8 85
Northeast Entrance 7350 6.2 9.4 66 10.3 12.6 82
Parker Peak 9400 19.8 20.1 99 21.3 19.3 110
Sylvan Lake 8420 15.7 19.1 82 22.3 22.6 99
Thumb Divide 7980 17.2 16.0 108 18.0 17.0 106
Two Ocean Plateau 9240 27.3 28.2 97 25.8 25.4 102
White Mill 8700 17.0 23.2 73 17.7 22.1 80
Wolverine 7650 9.8 10.9 90 13.1 12.2 107
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Basin Index (%) 83 92
WIND RIVER
Burroughs Creek 8750 11.6 -M * 11.9 -M *
Castle Creek 8400 7.0 6.4 109 8.2 8.2 100
Cold Springs 9630 8.6 7.2 119 11.7 9.0 130
Deer Park 9700 19.0 14.4 132 21.1 17.1 123
Hobbs Park 10100 16.4 13.8 119 16.8 12.9 130
Kirwin 9550 13.4 10.4 129 15.8 11.6 136
Little Warm 9370 10.5 10.0 105 13.2 11.6 114
South Pass 9040 16.1 14.5 111 17.9 15.0 119
St. Lawrence Alt 8620 6.9 -M * 10.4 -M *
Togwotee Pass 9580 20.0 23.0 87 19.4 24.1 80
Townsend Creek 8700 10.5 8.9 118 14.1 10.8 131
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Basin Index (%) 112 115
BIGHORN BASIN
Bald Mtn. 9380 12.4 18.8 66 11.8 15.5 76
Bear Trap Meadow 8200 4.8 6.0 80 7.9 7.8 101
Bone Springs Div 9350 12.3 16.4 75 11.5 14.9 77
Grave Springs 8550 5.0 8.2 61 7.4 8.9 83
Kirwin 9550 13.4 10.4 129 15.8 11.6 136
Marquette 8760 12.0 7.2 167 14.8 8.6 172
Middle Powder 7760 -M 10.6 * 7.8 9.6 81
Owl Creek 8975 5.7 5.6 102 7.2 5.8 124
Powder River Pass 9480 6.2 10.6 58 10.0 12.0 83
Shell Creek 9580 11.4 14.8 77 12.2 13.4 91
Timber Creek 7950 8.1 4.6 176 12.1 7.6 159
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Basin Index (%) 89 102
SHOSHONE RIVER
Blackwater 9780 22.2 22.2 100 23.2 21.3 109
Evening Star 9200 20.7 24.4 85 25.9 27.0 96
Marquette 8760 12.0 7.2 167 14.8 8.6 172
Sylvan Lake 8420 15.7 19.1 82 22.3 22.6 99
Sylvan Road 7120 8.2 10.7 77 15.1 15.6 97
Younts Peak 8350 14.4 14.2 101 15.0 14.4 104
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Basin Index (%) 95 106
POWDER RIVER
Bear Trap Meadow 8200 4.8 6.0 80 7.9 7.8 101
Cloud Peak Reservoir 9860 11.4 14.2 80 13.2 12.8 103
Grave Springs 8550 5.0 8.2 61 7.4 8.9 83
Hansen Sawmill 8360 5.4 6.5 83 8.3 8.2 101
Middle Powder 7760 -M 10.6 * 7.8 9.6 81
Powder River Pass 9480 6.2 10.6 58 10.0 12.0 83
Soldier Park 8720 4.4 7.3 60 9.5 8.8 108
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Basin Index (%) 70 94
TONGUE RIVER
Big Goose 7990 5.9 8.4 70 10.0 9.4 106
Bone Springs Div 9350 12.3 16.4 75 11.5 14.9 77
Burgess Junction 7880 -M 10.4 * 10.7 11.3 95
Dome Lake 8880 -M 11.4 * 10.4 12.2 85
Little Goose 8870 7.8 9.4 83 11.2 11.4 98
Sucker Creek 8880 9.2 11.7 79 12.8 13.2 97
Tie Creek 6870 2.5 4.8 52 11.4 10.3 111
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Basin Index (%) 74 94
BELLE FOURCHE
Blind Park 6890 .2 6.9 3 6.1 10.6 58
Cole Canyon 5910 2.5 5.4 46 5.8 9.0 64
North Rapid Creek 6130 5.2 6.5 80 7.0 8.5 82
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Basin Index (%) 42 67
CHEYENNE RIVER BASIN
Blind Park 6890 .2 6.9 3 6.1 10.6 58
North Rapid Creek 6130 5.2 6.5 80 7.0 8.5 82
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Basin Index (%) 40 69
UPPER N. PLATTE
Arapaho Ridge 10976 21.2 21.2 100 21.1 21.2 100
Blackhall Mtn 9839 32.8 30.3 108 34.0 29.1 117
Cinnabar Park 9707 20.0 20.2 99 22.5 23.1 97
Columbine 9167 26.6 22.2 120 25.2 23.4 108
Divide Peak 8730 21.6 19.6 110 24.2 21.1 115
Joe Wright 10158 18.5 19.8 93 22.9 25.2 91
Laprele Creek 8390 7.2 9.4 77 10.4 11.4 91
Med Bow 10512 37.7 -M * 32.2 -M *
Never Summer 10323 18.8 19.8 95 14.4 16.6 87
North French Creek 10153 26.4 28.2 94 26.4 26.0 102
Old Battle 9860 32.6 30.4 107 33.1 33.2 100
Rawah 9069 12.4 10.8 115 16.0 15.0 107
Sage Creek Basin 7850 15.9 13.1 121 15.4 12.7 121
Sand Lake 10098 29.3 26.6 110 28.1 24.2 116
South Brush Creek 8495 10.7 11.8 91 12.1 13.6 89
Tower 10620 40.5 42.2 96 37.0 38.2 97
Webber Springs 9260 24.2 22.0 110 25.8 24.9 104
Whiskey Park 9020 31.5 26.4 119 29.5 26.8 110
Willow Creek Pass 9523 14.0 12.7 110 14.8 13.2 112
Zirkel 9338 26.1 27.6 95 28.2 30.3 93
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Basin Index (%) 104 103
SWEETWATER
Deer Park 9700 19.0 14.4 132 21.1 17.1 123
Larsen Creek 9000 9.4 10.2 92 14.8 13.3 111
South Pass 9040 16.1 14.5 111 17.9 15.0 119
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Basin Index (%) 114 119
LOWER N. PLATTE
Casper Mtn. 7920 9.8 13.0 75 13.6 13.4 101
Laprele Creek 8390 7.2 9.4 77 10.4 11.4 91
Reno Hill 8430 9.4 13.6 69 13.2 14.5 91
Windy Peak 7915 8.4 7.8 108 9.8 10.0 98
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Basin Index (%) 79 95
LARAMIE RIVER
Brooklyn Lake 10250 24.3 21.0 116 24.7 21.2 117
Cinnabar Park 9707 20.0 20.2 99 22.5 23.1 97
Crow Creek 8335 5.5 6.0 92 10.0 10.2 98
Deadman Hill 10239 19.2 15.8 122 18.1 17.1 106
Rawah 9069 12.4 10.8 115 16.0 15.0 107
Roach 9740 15.0 15.0 100 17.4 18.2 96
Windy Peak 7915 8.4 7.8 108 9.8 10.0 98
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Basin Index (%) 108 103
S. PLATTE
Crow Creek 8335 5.5 6.0 92 10.0 10.2 98
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Basin Index (%) 92 98
LITTLE SNAKE RIVER
Battle Mountain 7498 12.1 10.8 112 18.5 14.5 128
Divide Peak 8730 21.6 19.6 110 24.2 21.1 115
Elk River 8739 19.1 17.8 107 19.7 18.6 106
Elkhead Divide 8800 23.3 -M * 23.8 -M *
Little Snake River 8928 29.8 25.7 116 33.0 31.2 106
Old Battle 9860 32.6 30.4 107 33.1 33.2 100
Sage Creek Basin 7850 15.9 13.1 121 15.4 12.7 121
Sandstone RS 8152 18.9 12.8 148 18.0 17.2 105
Whiskey Park 9020 31.5 26.4 119 29.5 26.8 110
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Basin Index (%) 116 109
UPPER GREEN RIVER
Big Sandy Opening 9080 14.0 13.0 108 14.9 12.3 121
Blind Bull Sum 8650 23.4 23.8 98 16.5 17.5 94
East Rim Divide 7930 9.4 10.4 90 10.9 10.9 100
Elkhart Park G.S. 9400 11.4 12.4 92 12.5 12.5 100
Gros Ventre Summit 8750 11.9 12.8 93 13.5 12.0 112
Gunsight Pass 9820 13.2 12.6 105 14.7 13.4 110
Indian Creek 9425 23.6 23.4 101 20.3 19.4 105
Kendall R.S. 7740 9.4 11.4 82 12.9 13.0 99
Larsen Creek 9000 9.4 10.2 92 14.8 13.3 111
Loomis Park 8240 12.7 15.3 83 15.1 16.4 92
New Fork Lake 8340 9.1 10.4 88 -M 10.5 *
Pocket Creek 9360 -M -M * -M -M *
Snider Basin 8060 10.2 12.5 82 12.6 13.8 91
Spring Creek Divide 9000 -M 24.5 * -M 23.1 *
Triple Peak 8500 23.4 22.6 104 23.4 24.4 96
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Basin Index (%) 95 102
LOWER GREEN RIVER
Blacks Fork Jct 8869 11.5 9.0 128 14.0 12.2 115
Buck Pasture 9632 16.0 -M * 16.1 -M *
EF Blacks Fork GS 9360 11.8 11.4 104 10.2 10.8 94
Hams Fork 7840 -M 11.0 * 11.6 10.8 107
Henrys Fork 10182 -M -M * 13.7 -M *
Hewinta 9500 12.9 10.0 129 14.9 13.2 113
Hickerson Park 9122 11.5 7.4 155 13.7 9.9 138
Hole-in-Rock 9168 9.4 6.9 136 10.9 9.6 114
Indian Creek 9425 23.6 23.4 101 20.3 19.4 105
Kelley R.S. 8180 17.1 14.6 117 17.8 15.8 113
Spirit Lk 10235 15.8 13.0 122 19.0 16.8 113
Steel Creek Park 10158 15.7 14.2 111 17.8 15.8 113
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Basin Index (%) 118 112
UPPER BEAR RIVER
Bear River RS 8777 13.1 9.4 139 14.6 11.8 124
Bug Lake 7987 22.8 18.6 123 23.2 17.6 132
Burts Miller Ranch 8000 9.4 5.6 168 12.6 7.4 170
Chalk Creek #1 9171 25.0 22.6 111 24.7 22.4 110
Giveout 6930 11.6 8.1 143 13.0 11.6 112
Hayden Fork 9130 19.2 14.8 130 23.1 19.8 117
Kelley R.S. 8180 17.1 14.6 117 17.8 15.8 113
Lily Lake 9133 14.3 12.4 115 16.0 14.7 109
Monte Cristo 8932 30.3 26.5 114 28.6 25.9 110
Salt River Summit 7640 16.0 13.4 119 14.9 15.6 96
Spring Creek Divide 9000 -M 24.5 * -M 23.1 *
Trial Lake 9992 28.4 21.4 133 26.6 21.8 122
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Basin Index (%) 124 117
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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.