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 FRIDAY: MARCH 29 , 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 15.8 16.3 97 19.9 19.5 102
Blind Bull Sum 8650 22.9 23.6 97 15.9 17.4 91
Cottonwood Creek 7670 20.8 21.1 99 24.9 24.2 103
East Rim Divide 7930 8.7 10.2 85 10.1 10.7 94
Grand Targhee 9260 36.9 39.6 93 25.7 29.4 87
Granite Creek 6770 14.6 15.4 95 15.4 17.2 90
Grassy Lake 7265 28.2 31.3 90 33.6 33.2 101
Gros Ventre Summit 8750 11.2 12.3 91 12.8 11.8 108
Gunsight Pass 9820 12.1 12.5 97 13.6 13.2 103
Lewis Lake Divide 7850 31.2 29.6 105 34.7 31.6 110
Loomis Park 8240 11.8 15.0 79 14.1 16.4 86
Phillips Bench 8200 24.1 25.6 94 26.9 26.0 103
Salt River Summit 7640 15.5 13.0 119 14.3 14.9 96
Snake River Station 6920 16.1 16.5 98 22.5 21.2 106
Somsen Ranch 6800 17.4 11.8 147 20.6 16.0 129
Spring Creek Divide 9000 -M 23.9 * -M 22.6 *
Thumb Divide 7980 16.7 15.6 107 17.6 16.7 105
Togwotee Pass 9580 19.1 22.8 84 18.6 23.8 78
Triple Peak 8500 22.7 22.2 102 22.8 24.4 93
Two Ocean Plateau 9240 26.5 27.8 95 25.1 25.2 100
Willow Creek 8080 32.8 28.8 114 33.2 31.2 106
Younts Peak 8350 14.2 14.1 101 14.8 14.1 105
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Basin Index (%) 99 100
MADISON HEADWATERS IN WYOMING
Black Bear 8170 32.6 36.8 89 36.6 34.7 105
Canyon 7870 10.8 -M * 13.4 -M *
Madison Plateau 7750 20.0 21.5 93 22.4 23.0 97
West Yellowstone 6700 8.9 10.2 87 13.5 13.4 101
Whiskey Creek 6800 13.5 15.0 90 19.6 18.7 105
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Basin Index (%) 90 103
YELLOWSTONE HEADWATERS IN WYOMING
Beartooth Lake 9360 14.6 21.0 70 14.2 19.2 74
Canyon 7870 10.8 -M * 13.4 -M *
Evening Star 9200 20.3 24.2 84 25.6 26.7 96
Fisher Creek 9100 21.8 31.0 70 24.4 31.2 78
Monument Peak 8850 14.4 19.4 74 17.4 20.2 86
Northeast Entrance 7350 5.8 9.6 60 9.9 12.4 80
Parker Peak 9400 19.6 20.0 98 21.1 19.1 110
Sylvan Lake 8420 15.7 19.0 83 22.0 21.6 102
Thumb Divide 7980 16.7 15.6 107 17.6 16.7 105
Two Ocean Plateau 9240 26.5 27.8 95 25.1 25.2 100
White Mill 8700 16.4 23.2 71 17.2 21.8 79
Wolverine 7650 9.4 10.9 86 13.0 11.8 110
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Basin Index (%) 82 92
WIND RIVER
Burroughs Creek 8750 11.4 -M * 11.4 -M *
Castle Creek 8400 6.4 6.7 96 7.6 8.2 93
Cold Springs 9630 8.4 7.2 117 10.9 8.2 133
Deer Park 9700 17.1 14.0 122 19.4 16.5 118
Hobbs Park 10100 15.9 13.2 120 16.1 12.0 134
Kirwin 9550 13.1 10.0 131 15.4 11.0 140
Little Warm 9370 9.6 10.0 96 12.5 11.4 110
South Pass 9040 14.9 14.3 104 16.6 14.7 113
St. Lawrence Alt 8620 6.2 -M * 9.6 -M *
Togwotee Pass 9580 19.1 22.8 84 18.6 23.8 78
Townsend Creek 8700 9.7 8.6 113 13.3 10.0 133
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Basin Index (%) 107 113
BIGHORN BASIN
Bald Mtn. 9380 12.2 17.8 69 11.5 15.3 75
Bear Trap Meadow 8200 4.0 6.0 67 7.1 7.5 95
Bone Springs Div 9350 11.9 16.0 74 11.2 14.6 77
Grave Springs 8550 4.0 8.0 50 6.3 8.8 72
Kirwin 9550 13.1 10.0 131 15.4 11.0 140
Marquette 8760 11.5 6.8 169 14.5 8.2 177
Middle Powder 7760 5.3 10.1 52 6.9 9.2 75
Owl Creek 8975 5.2 5.2 100 6.7 5.8 116
Powder River Pass 9480 -M 10.4 * 9.6 11.8 81
Shell Creek 9580 11.0 14.4 76 11.7 13.0 90
Timber Creek 7950 7.7 4.2 183 11.8 7.5 157
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Basin Index (%) 87 100
SHOSHONE RIVER
Blackwater 9780 21.6 21.4 101 22.4 20.6 109
Evening Star 9200 20.3 24.2 84 25.6 26.7 96
Marquette 8760 11.5 6.8 169 14.5 8.2 177
Sylvan Lake 8420 15.7 19.0 83 22.0 21.6 102
Sylvan Road 7120 7.6 10.9 70 14.9 15.4 97
Younts Peak 8350 14.2 14.1 101 14.8 14.1 105
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Basin Index (%) 94 107
POWDER RIVER
Bear Trap Meadow 8200 4.0 6.0 67 7.1 7.5 95
Cloud Peak Reservoir 9860 10.9 14.0 78 12.5 12.4 101
Grave Springs 8550 4.0 8.0 50 6.3 8.8 72
Hansen Sawmill 8360 4.9 6.0 82 7.8 7.8 100
Middle Powder 7760 5.3 10.1 52 6.9 9.2 75
Powder River Pass 9480 -M 10.4 * 9.6 11.8 81
Soldier Park 8720 3.8 6.8 56 8.7 8.6 101
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Basin Index (%) 65 89
TONGUE RIVER
Big Goose 7990 5.6 7.8 72 9.5 9.3 102
Bone Springs Div 9350 11.9 16.0 74 11.2 14.6 77
Burgess Junction 7880 6.9 9.8 70 10.3 10.8 95
Dome Lake 8880 -M 10.8 * 9.9 11.8 84
Little Goose 8870 7.5 9.2 82 10.8 11.2 96
Sucker Creek 8880 8.8 11.4 77 12.5 12.7 98
Tie Creek 6870 2.1 4.7 45 11.0 9.9 111
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Basin Index (%) 73 94
BELLE FOURCHE
Blind Park 6890 .0 7.0 0 5.9 10.4 57
Cole Canyon 5910 1.9 5.4 35 5.0 8.1 62
North Rapid Creek 6130 4.8 6.6 73 6.5 8.3 78
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Basin Index (%) 35 65
CHEYENNE RIVER BASIN
Blind Park 6890 .0 7.0 0 5.9 10.4 57
North Rapid Creek 6130 4.8 6.6 73 6.5 8.3 78
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Basin Index (%) 35 66
UPPER N. PLATTE
Arapaho Ridge 10976 20.3 20.5 99 20.2 20.6 98
Blackhall Mtn 9839 30.7 28.9 106 32.6 27.8 117
Cinnabar Park 9707 19.4 19.4 100 21.8 22.3 98
Columbine 9167 26.3 21.8 121 24.7 22.9 108
Divide Peak 8730 20.2 18.4 110 22.9 20.6 111
Joe Wright 10158 18.2 19.5 93 22.2 24.6 90
Laprele Creek 8390 6.8 9.2 74 10.0 11.0 91
Med Bow 10512 35.8 -M * 30.9 -M *
Never Summer 10323 17.6 19.1 92 13.6 16.2 84
North French Creek 10153 25.1 26.5 95 25.2 24.8 102
Old Battle 9860 30.6 28.3 108 30.6 31.1 98
Rawah 9069 12.1 10.4 116 15.3 14.6 105
Sage Creek Basin 7850 14.9 12.5 119 14.4 12.3 117
Sand Lake 10098 28.0 25.3 111 27.0 23.0 117
South Brush Creek 8495 9.9 11.4 87 11.3 12.7 89
Tower 10620 39.6 41.2 96 36.2 37.6 96
Webber Springs 9260 22.5 21.2 106 24.2 24.2 100
Whiskey Park 9020 30.5 25.4 120 28.4 26.2 108
Willow Creek Pass 9523 13.4 12.4 108 14.1 13.0 108
Zirkel 9338 25.1 27.2 92 27.3 29.4 93
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Basin Index (%) 103 102
SWEETWATER
Deer Park 9700 17.1 14.0 122 19.4 16.5 118
Larsen Creek 9000 8.6 10.6 81 13.4 12.7 106
South Pass 9040 14.9 14.3 104 16.6 14.7 113
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Basin Index (%) 104 113
LOWER N. PLATTE
Casper Mtn. 7920 9.0 12.4 73 12.8 12.6 102
Laprele Creek 8390 6.8 9.2 74 10.0 11.0 91
Reno Hill 8430 8.8 12.9 68 12.5 14.0 89
Windy Peak 7915 7.9 7.8 101 9.2 9.3 99
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Basin Index (%) 77 95
LARAMIE RIVER
Brooklyn Lake 10250 23.4 20.2 116 23.8 20.4 117
Cinnabar Park 9707 19.4 19.4 100 21.8 22.3 98
Crow Creek 8335 5.4 5.7 95 9.6 9.9 97
Deadman Hill 10239 18.5 15.6 119 17.4 16.5 105
Rawah 9069 12.1 10.4 116 15.3 14.6 105
Roach 9740 14.3 14.8 97 16.5 17.9 92
Windy Peak 7915 7.9 7.8 101 9.2 9.3 99
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Basin Index (%) 108 102
S. PLATTE
Crow Creek 8335 5.4 5.7 95 9.6 9.9 97
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Basin Index (%) 95 97
LITTLE SNAKE RIVER
Battle Mountain 7498 11.9 11.0 108 18.2 14.3 127
Divide Peak 8730 20.2 18.4 110 22.9 20.6 111
Elk River 8739 18.0 17.6 102 18.8 17.8 106
Elkhead Divide 8800 22.1 -M * 22.7 -M *
Little Snake River 8928 27.9 25.3 110 31.3 30.4 103
Old Battle 9860 30.6 28.3 108 30.6 31.1 98
Sage Creek Basin 7850 14.9 12.5 119 14.4 12.3 117
Sandstone RS 8152 18.1 12.4 146 17.3 17.0 102
Whiskey Park 9020 30.5 25.4 120 28.4 26.2 108
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Basin Index (%) 114 107
UPPER GREEN RIVER
Big Sandy Opening 9080 12.3 12.7 97 13.2 12.1 109
Blind Bull Sum 8650 22.9 23.6 97 15.9 17.4 91
East Rim Divide 7930 8.7 10.2 85 10.1 10.7 94
Elkhart Park G.S. 9400 9.8 12.0 82 10.7 12.2 88
Gros Ventre Summit 8750 11.2 12.3 91 12.8 11.8 108
Gunsight Pass 9820 12.1 12.5 97 13.6 13.2 103
Indian Creek 9425 22.4 22.3 100 19.0 18.6 102
Kendall R.S. 7740 8.9 11.2 79 12.2 12.8 95
Larsen Creek 9000 8.6 10.6 81 13.4 12.7 106
Loomis Park 8240 11.8 15.0 79 14.1 16.4 86
New Fork Lake 8340 8.2 10.2 80 -M 10.2 *
Pocket Creek 9360 -M -M * -M -M *
Snider Basin 8060 9.3 12.4 75 11.8 13.4 88
Spring Creek Divide 9000 -M 23.9 * -M 22.6 *
Triple Peak 8500 22.7 22.2 102 22.8 24.4 93
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Basin Index (%) 90 97
LOWER GREEN RIVER
Blacks Fork Jct 8869 11.2 8.5 132 13.6 11.5 118
Buck Pasture 9632 15.1 -M * 15.4 -M *
EF Blacks Fork GS 9360 11.5 11.1 104 9.8 10.1 97
Hams Fork 7840 -M 10.6 * 10.8 10.6 102
Henrys Fork 10182 -M -M * 13.2 -M *
Hewinta 9500 12.5 10.0 125 14.5 12.3 118
Hickerson Park 9122 11.1 7.4 150 13.4 9.5 141
Hole-in-Rock 9168 8.9 6.8 131 10.5 9.2 114
Indian Creek 9425 22.4 22.3 100 19.0 18.6 102
Kelley R.S. 8180 16.1 14.3 113 16.7 15.4 108
Spirit Lk 10235 14.5 11.8 123 17.9 15.6 115
Steel Creek Park 10158 15.0 13.8 109 17.2 15.2 113
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Basin Index (%) 116 112
UPPER BEAR RIVER
Bear River RS 8777 12.2 9.1 134 14.0 11.2 125
Bug Lake 7987 22.2 17.9 124 22.2 17.0 131
Burts Miller Ranch 8000 8.9 5.4 165 12.4 7.1 175
Chalk Creek #1 9171 23.5 22.0 107 24.0 21.8 110
Giveout 6930 10.6 8.2 129 12.3 11.2 110
Hayden Fork 9130 18.4 14.4 128 22.1 19.4 114
Kelley R.S. 8180 16.1 14.3 113 16.7 15.4 108
Lily Lake 9133 13.7 12.0 114 15.4 14.3 108
Monte Cristo 8932 28.4 25.4 112 27.1 24.4 111
Salt River Summit 7640 15.5 13.0 119 14.3 14.9 96
Spring Creek Divide 9000 -M 23.9 * -M 22.6 *
Trial Lake 9992 26.6 21.3 125 25.1 21.2 118
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Basin Index (%) 120 116
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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.