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 SATURDAY: APRIL 6 , 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 15.4 16.2 95 20.7 20.0 104
Blind Bull Sum 8650 24.1 23.7 102 16.7 17.6 95
Cottonwood Creek 7670 20.8 21.0 99 25.0 25.0 100
East Rim Divide 7930 8.8 10.4 85 11.0 11.0 100
Grand Targhee 9260 38.9 42.6 91 26.2 30.2 87
Granite Creek 6770 15.5 15.0 103 16.6 18.0 92
Grassy Lake 7265 27.9 32.4 86 34.5 34.6 100
Gros Ventre Summit 8750 11.8 12.8 92 13.7 12.0 114
Gunsight Pass 9820 13.3 12.9 103 15.0 13.6 110
Lewis Lake Divide 7850 31.2 30.5 102 35.2 32.4 109
Loomis Park 8240 12.0 15.1 79 15.3 16.6 92
Phillips Bench 8200 23.8 26.2 91 28.1 26.4 106
Salt River Summit 7640 15.5 13.0 119 15.2 16.0 95
Snake River Station 6920 15.1 16.6 91 22.9 22.1 104
Somsen Ranch 6800 17.4 10.7 163 21.5 16.4 131
Spring Creek Divide 9000 23.4 24.8 94 22.1 23.4 94
Thumb Divide 7980 17.0 16.4 104 18.1 17.2 105
Togwotee Pass 9580 19.7 23.2 85 19.6 24.4 80
Triple Peak 8500 23.7 22.8 104 23.5 24.8 95
Two Ocean Plateau 9240 27.7 28.8 96 26.3 26.2 100
Willow Creek 8080 34.2 29.6 116 34.7 32.7 106
Younts Peak 8350 14.1 14.3 99 15.2 14.6 104
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Basin Index (%) 98 100
MADISON HEADWATERS IN WYOMING
Black Bear 8170 30.6 38.2 80 37.8 37.0 102
Canyon 7870 10.8 -M * 13.7 -M *
Madison Plateau 7750 20.4 22.6 90 23.5 24.4 96
West Yellowstone 6700 8.4 9.6 88 13.8 13.8 100
Whiskey Creek 6800 13.7 15.3 90 20.1 19.6 103
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Basin Index (%) 85 100
YELLOWSTONE HEADWATERS IN WYOMING
Beartooth Lake 9360 14.8 21.3 69 14.4 19.7 73
Canyon 7870 10.8 -M * 13.7 -M *
Evening Star 9200 20.2 24.9 81 26.0 27.7 94
Fisher Creek 9100 22.5 32.4 69 25.2 32.3 78
Monument Peak 8850 14.0 20.4 69 17.7 21.2 83
Northeast Entrance 7350 5.3 8.6 62 10.2 12.8 80
Parker Peak 9400 19.8 20.8 95 21.5 19.6 110
Sylvan Lake 8420 15.1 19.3 78 22.5 23.2 97
Thumb Divide 7980 17.0 16.4 104 18.1 17.2 105
Two Ocean Plateau 9240 27.7 28.8 96 26.3 26.2 100
White Mill 8700 16.8 23.5 71 17.7 22.4 79
Wolverine 7650 8.4 10.2 82 13.2 12.4 106
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Basin Index (%) 80 91
WIND RIVER
Burroughs Creek 8750 10.9 -M * 11.9 -M *
Castle Creek 8400 6.3 6.4 98 8.2 8.6 95
Cold Springs 9630 8.2 7.0 117 11.6 9.2 126
Deer Park 9700 18.6 15.1 123 21.2 17.7 120
Hobbs Park 10100 16.4 14.2 115 16.9 13.4 126
Kirwin 9550 13.1 10.4 126 15.8 11.9 133
Little Warm 9370 10.3 10.0 103 13.4 11.7 115
South Pass 9040 15.6 14.5 108 17.9 15.4 116
St. Lawrence Alt 8620 6.1 -M * 10.4 -M *
Togwotee Pass 9580 19.7 23.2 85 19.6 24.4 80
Townsend Creek 8700 10.1 9.2 110 14.1 11.0 128
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Basin Index (%) 108 112
BIGHORN BASIN
Bald Mtn. 9380 12.4 19.4 64 11.9 15.8 75
Bear Trap Meadow 8200 4.0 5.9 68 8.1 8.4 96
Bone Springs Div 9350 12.3 17.2 72 11.7 15.6 75
Grave Springs 8550 4.8 8.1 59 7.4 9.0 82
Kirwin 9550 13.1 10.4 126 15.8 11.9 133
Marquette 8760 11.5 7.4 155 14.8 9.2 161
Middle Powder 7760 5.8 10.7 54 7.8 9.8 80
Owl Creek 8975 5.0 5.4 93 7.2 6.0 120
Powder River Pass 9480 5.7 10.4 55 10.0 12.4 81
Shell Creek 9580 11.5 15.0 77 12.2 13.6 90
Timber Creek 7950 7.8 4.8 162 12.1 7.8 155
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Basin Index (%) 82 100
SHOSHONE RIVER
Blackwater 9780 22.2 22.9 97 23.4 21.7 108
Evening Star 9200 20.2 24.9 81 26.0 27.7 94
Marquette 8760 11.5 7.4 155 14.8 9.2 161
Sylvan Lake 8420 15.1 19.3 78 22.5 23.2 97
Sylvan Road 7120 5.6 10.6 53 15.0 16.0 94
Younts Peak 8350 14.1 14.3 99 15.2 14.6 104
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Basin Index (%) 89 104
POWDER RIVER
Bear Trap Meadow 8200 4.0 5.9 68 8.1 8.4 96
Cloud Peak Reservoir 9860 11.2 14.6 77 13.3 13.3 100
Grave Springs 8550 4.8 8.1 59 7.4 9.0 82
Hansen Sawmill 8360 5.0 6.0 83 8.4 8.2 102
Middle Powder 7760 5.8 10.7 54 7.8 9.8 80
Powder River Pass 9480 5.7 10.4 55 10.0 12.4 81
Soldier Park 8720 3.7 7.6 49 9.4 9.3 101
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Basin Index (%) 64 91
TONGUE RIVER
Big Goose 7990 5.6 8.6 65 9.8 9.8 100
Bone Springs Div 9350 12.3 17.2 72 11.7 15.6 75
Burgess Junction 7880 7.1 10.8 66 10.8 11.9 91
Dome Lake 8880 -M 11.6 * 10.5 12.8 82
Little Goose 8870 7.1 9.6 74 11.2 12.0 93
Sucker Creek 8880 8.9 12.0 74 12.9 13.7 94
Tie Creek 6870 .9 4.9 18 11.5 10.6 108
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Basin Index (%) 66 91
BELLE FOURCHE
Blind Park 6890 .0 6.7 0 -M 10.8 *
Cole Canyon 5910 .2 4.7 4 5.5 9.2 60
North Rapid Creek 6130 3.5 6.0 58 6.8 8.8 77
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Basin Index (%) 21 68
CHEYENNE RIVER BASIN
Blind Park 6890 .0 6.7 0 -M 10.8 *
North Rapid Creek 6130 3.5 6.0 58 6.8 8.8 77
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Basin Index (%) 28 77
UPPER N. PLATTE
Arapaho Ridge 10976 20.6 22.0 94 21.1 21.4 99
Blackhall Mtn 9839 30.9 30.4 102 34.3 29.4 117
Cinnabar Park 9707 19.7 20.6 96 22.5 23.5 96
Columbine 9167 26.3 22.0 120 25.4 24.0 106
Divide Peak 8730 22.0 19.5 113 24.4 21.4 114
Joe Wright 10158 18.8 20.2 93 22.8 25.9 88
Laprele Creek 8390 6.4 9.0 71 10.4 11.6 90
Med Bow 10512 37.3 -M * 32.3 -M *
Never Summer 10323 17.8 20.4 87 14.5 16.9 86
North French Creek 10153 26.5 28.8 92 26.4 26.8 99
Old Battle 9860 32.9 31.3 105 33.5 34.4 97
Rawah 9069 11.1 10.4 107 15.9 15.4 103
Sage Creek Basin 7850 15.2 11.6 131 15.5 12.8 121
Sand Lake 10098 29.3 27.3 107 28.2 24.8 114
South Brush Creek 8495 10.0 11.4 88 12.1 13.7 88
Tower 10620 40.5 43.2 94 39.3 39.2 100
Webber Springs 9260 23.2 22.3 104 26.1 25.3 103
Whiskey Park 9020 31.7 27.0 117 29.8 27.4 109
Willow Creek Pass 9523 14.2 13.0 109 14.8 13.6 109
Zirkel 9338 25.5 28.0 91 28.4 30.6 93
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Basin Index (%) 101 102
SWEETWATER
Deer Park 9700 18.6 15.1 123 21.2 17.7 120
Larsen Creek 9000 9.6 9.8 98 14.8 13.4 110
South Pass 9040 15.6 14.5 108 17.9 15.4 116
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Basin Index (%) 111 116
LOWER N. PLATTE
Casper Mtn. 7920 9.1 13.6 67 13.7 13.7 100
Laprele Creek 8390 6.4 9.0 71 10.4 11.6 90
Reno Hill 8430 9.1 14.0 65 13.2 14.6 90
Windy Peak 7915 8.0 8.0 100 9.9 10.2 97
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Basin Index (%) 73 94
LARAMIE RIVER
Brooklyn Lake 10250 22.9 21.8 105 24.7 21.7 114
Cinnabar Park 9707 19.7 20.6 96 22.5 23.5 96
Crow Creek 8335 4.9 6.0 82 10.0 10.5 95
Deadman Hill 10239 19.5 16.0 122 18.2 17.8 102
Rawah 9069 11.1 10.4 107 15.9 15.4 103
Roach 9740 14.3 15.4 93 17.4 19.0 92
Windy Peak 7915 8.0 8.0 100 9.9 10.2 97
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Basin Index (%) 102 100
S. PLATTE
Crow Creek 8335 4.9 6.0 82 10.0 10.5 95
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Basin Index (%) 82 95
LITTLE SNAKE RIVER
Battle Mountain 7498 11.2 10.4 108 18.6 14.6 127
Divide Peak 8730 22.0 19.5 113 24.4 21.4 114
Elk River 8739 18.7 17.0 110 20.1 19.0 106
Elkhead Divide 8800 23.3 -M * 24.3 -M *
Little Snake River 8928 28.9 27.0 107 33.4 31.8 105
Old Battle 9860 32.9 31.3 105 33.5 34.4 97
Sage Creek Basin 7850 15.2 11.6 131 15.5 12.8 121
Sandstone RS 8152 17.4 13.0 134 18.3 17.3 106
Whiskey Park 9020 31.7 27.0 117 29.8 27.4 109
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Basin Index (%) 114 108
UPPER GREEN RIVER
Big Sandy Opening 9080 14.1 12.9 109 15.1 12.7 119
Blind Bull Sum 8650 24.1 23.7 102 16.7 17.6 95
East Rim Divide 7930 8.8 10.4 85 11.0 11.0 100
Elkhart Park G.S. 9400 11.8 12.4 95 12.6 12.6 100
Gros Ventre Summit 8750 11.8 12.8 92 13.7 12.0 114
Gunsight Pass 9820 13.3 12.9 103 15.0 13.6 110
Indian Creek 9425 23.4 23.4 100 20.4 19.6 104
Kendall R.S. 7740 9.1 11.2 81 13.1 13.0 101
Larsen Creek 9000 9.6 9.8 98 14.8 13.4 110
Loomis Park 8240 12.0 15.1 79 15.3 16.6 92
New Fork Lake 8340 8.6 10.5 82 6.6 10.6 62
Pocket Creek 9360 -M -M * -M -M *
Snider Basin 8060 10.2 12.8 80 12.7 13.8 92
Spring Creek Divide 9000 23.4 24.8 94 22.1 23.4 94
Triple Peak 8500 23.7 22.8 104 23.5 24.8 95
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Basin Index (%) 95 99
LOWER GREEN RIVER
Blacks Fork Jct 8869 11.1 8.6 129 14.2 12.2 116
Buck Pasture 9632 15.8 -M * 16.3 -M *
EF Blacks Fork GS 9360 11.2 11.2 100 10.2 10.8 94
Hams Fork 7840 -M 11.0 * 11.5 11.0 105
Henrys Fork 10182 -M -M * 13.8 -M *
Hewinta 9500 12.1 11.0 110 15.0 13.4 112
Hickerson Park 9122 11.1 6.9 161 13.8 10.4 133
Hole-in-Rock 9168 9.0 7.0 129 11.0 10.0 110
Indian Creek 9425 23.4 23.4 100 20.4 19.6 104
Kelley R.S. 8180 16.7 14.6 114 17.9 15.9 113
Spirit Lk 10235 15.5 14.1 110 19.2 16.9 114
Steel Creek Park 10158 15.9 14.6 109 18.0 16.3 110
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Basin Index (%) 113 111
UPPER BEAR RIVER
Bear River RS 8777 12.0 8.8 136 14.7 11.8 125
Bug Lake 7987 22.4 18.3 122 23.3 18.0 129
Burts Miller Ranch 8000 8.6 5.3 162 12.6 7.8 162
Chalk Creek #1 9171 24.7 22.6 109 25.5 22.4 114
Giveout 6930 10.8 8.2 132 13.2 11.8 112
Hayden Fork 9130 18.8 14.5 130 23.2 20.4 114
Kelley R.S. 8180 16.7 14.6 114 17.9 15.9 113
Lily Lake 9133 14.3 12.6 113 16.2 15.1 107
Monte Cristo 8932 30.3 27.2 111 28.9 26.1 111
Salt River Summit 7640 15.5 13.0 119 15.2 16.0 95
Spring Creek Divide 9000 23.4 24.8 94 22.1 23.4 94
Trial Lake 9992 29.0 21.7 134 26.9 22.3 121
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Basin Index (%) 118 114
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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.