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: MARCH 25 , 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 15.1 16.0 94 19.4 19.0 102
Blind Bull Sum 8650 22.3 22.7 98 15.5 17.1 91
Cottonwood Creek 7670 20.0 20.8 96 24.0 23.8 101
East Rim Divide 7930 8.2 10.3 80 9.7 10.5 92
Grand Targhee 9260 35.8 38.4 93 25.2 28.6 88
Granite Creek 6770 14.2 15.4 92 15.0 17.0 88
Grassy Lake 7265 27.0 30.8 88 32.7 32.6 100
Gros Ventre Summit 8750 11.1 11.6 96 12.4 11.4 109
Gunsight Pass 9820 11.9 12.2 98 13.3 12.8 104
Lewis Lake Divide 7850 29.4 29.2 101 33.2 30.4 109
Loomis Park 8240 11.3 14.5 78 13.7 15.8 87
Phillips Bench 8200 22.8 23.8 96 25.9 25.2 103
Salt River Summit 7640 14.8 13.0 114 13.9 14.6 95
Snake River Station 6920 15.5 16.6 93 21.8 20.2 108
Somsen Ranch 6800 16.8 11.8 142 20.2 15.2 133
Spring Creek Divide 9000 -M 23.6 * -M 22.2 *
Thumb Divide 7980 15.9 15.2 105 16.8 16.1 104
Togwotee Pass 9580 18.4 22.2 83 17.9 23.2 77
Triple Peak 8500 22.1 22.0 100 22.5 24.0 94
Two Ocean Plateau 9240 25.7 27.1 95 24.8 24.2 102
Willow Creek 8080 31.9 27.8 115 32.2 30.5 106
Younts Peak 8350 13.6 13.8 99 14.2 13.5 105
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Basin Index (%) 97 100
MADISON HEADWATERS IN WYOMING
Black Bear 8170 30.6 35.9 85 35.0 34.0 103
Canyon 7870 10.1 -M * 12.7 -M *
Madison Plateau 7750 18.8 21.0 90 21.7 22.4 97
West Yellowstone 6700 8.4 10.1 83 12.9 13.2 98
Whiskey Creek 6800 12.6 14.4 88 18.6 18.2 102
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Basin Index (%) 86 100
YELLOWSTONE HEADWATERS IN WYOMING
Beartooth Lake 9360 14.2 20.6 69 13.7 18.8 73
Canyon 7870 10.1 -M * 12.7 -M *
Evening Star 9200 19.6 24.0 82 24.9 26.6 94
Fisher Creek 9100 20.8 30.6 68 23.1 30.4 76
Monument Peak 8850 13.3 19.2 69 16.3 19.6 83
Northeast Entrance 7350 5.2 9.6 54 9.4 12.1 78
Parker Peak 9400 18.9 19.6 96 20.4 18.6 110
Sylvan Lake 8420 15.0 18.6 81 21.4 21.2 101
Thumb Divide 7980 15.9 15.2 105 16.8 16.1 104
Two Ocean Plateau 9240 25.7 27.1 95 24.8 24.2 102
White Mill 8700 15.5 22.1 70 16.2 21.2 76
Wolverine 7650 9.1 10.8 84 12.8 11.5 111
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Basin Index (%) 80 91
WIND RIVER
Burroughs Creek 8750 11.3 -M * 11.2 -M *
Castle Creek 8400 6.4 6.9 93 7.7 7.9 97
Cold Springs 9630 8.0 6.8 118 10.9 8.2 133
Deer Park 9700 16.0 13.2 121 18.3 16.3 112
Hobbs Park 10100 15.6 12.8 122 15.9 11.2 142
Kirwin 9550 12.9 10.0 129 15.2 10.5 145
Little Warm 9370 9.4 9.4 100 12.2 11.2 109
South Pass 9040 13.9 13.4 104 15.8 14.0 113
St. Lawrence Alt 8620 5.3 -M * 9.6 -M *
Togwotee Pass 9580 18.4 22.2 83 17.9 23.2 77
Townsend Creek 8700 9.4 8.2 115 13.0 9.4 138
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Basin Index (%) 107 113
BIGHORN BASIN
Bald Mtn. 9380 11.5 16.8 68 10.9 14.9 73
Bear Trap Meadow 8200 3.8 5.8 66 6.7 7.4 91
Bone Springs Div 9350 11.2 15.1 74 10.7 13.7 78
Grave Springs 8550 3.7 7.8 47 6.2 8.6 72
Kirwin 9550 12.9 10.0 129 15.2 10.5 145
Marquette 8760 11.3 6.6 171 14.2 8.0 178
Middle Powder 7760 5.0 9.8 51 6.8 9.0 76
Owl Creek 8975 5.0 5.0 100 6.7 5.3 126
Powder River Pass 9480 5.8 10.2 57 9.4 11.6 81
Shell Creek 9580 10.6 14.0 76 11.3 12.4 91
Timber Creek 7950 7.7 4.0 192 11.6 6.6 176
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Basin Index (%) 84 102
SHOSHONE RIVER
Blackwater 9780 20.9 20.9 100 21.5 20.2 106
Evening Star 9200 19.6 24.0 82 24.9 26.6 94
Marquette 8760 11.3 6.6 171 14.2 8.0 178
Sylvan Lake 8420 15.0 18.6 81 21.4 21.2 101
Sylvan Road 7120 7.4 11.4 65 14.7 15.2 97
Younts Peak 8350 13.6 13.8 99 14.2 13.5 105
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Basin Index (%) 92 106
POWDER RIVER
Bear Trap Meadow 8200 3.8 5.8 66 6.7 7.4 91
Cloud Peak Reservoir 9860 11.0 13.6 81 12.3 11.8 104
Grave Springs 8550 3.7 7.8 47 6.2 8.6 72
Hansen Sawmill 8360 4.5 6.0 75 7.4 7.8 95
Middle Powder 7760 5.0 9.8 51 6.8 9.0 76
Powder River Pass 9480 5.8 10.2 57 9.4 11.6 81
Soldier Park 8720 3.5 6.1 57 8.3 8.0 104
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Basin Index (%) 63 89
TONGUE RIVER
Big Goose 7990 5.3 7.4 72 9.4 9.0 104
Bone Springs Div 9350 11.2 15.1 74 10.7 13.7 78
Burgess Junction 7880 6.7 9.8 68 10.1 10.4 97
Dome Lake 8880 -M 10.6 * 9.5 11.3 84
Little Goose 8870 7.4 8.4 88 10.3 10.5 98
Sucker Creek 8880 8.6 11.1 77 12.2 12.4 98
Tie Creek 6870 2.1 4.6 46 10.8 9.4 115
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Basin Index (%) 73 95
BELLE FOURCHE
Blind Park 6890 .3 7.0 4 5.6 9.9 57
Cole Canyon 5910 2.0 5.2 38 -M 7.9 *
North Rapid Creek 6130 4.7 6.6 71 6.4 8.1 79
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Basin Index (%) 37 67
CHEYENNE RIVER BASIN
Blind Park 6890 .3 7.0 4 5.6 9.9 57
North Rapid Creek 6130 4.7 6.6 71 6.4 8.1 79
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Basin Index (%) 37 67
UPPER N. PLATTE
Arapaho Ridge 10976 19.9 19.9 100 19.8 19.7 101
Blackhall Mtn 9839 29.1 28.4 102 31.8 26.9 118
Cinnabar Park 9707 18.7 19.2 97 21.2 21.7 98
Columbine 9167 25.4 21.7 117 23.7 22.2 107
Divide Peak 8730 19.3 18.2 106 22.3 20.2 110
Joe Wright 10158 17.7 19.0 93 21.8 24.0 91
Laprele Creek 8390 6.7 9.0 74 9.8 10.6 92
Med Bow 10512 34.1 -M * 29.8 -M *
Never Summer 10323 17.0 18.6 91 13.2 15.8 84
North French Creek 10153 24.3 26.2 93 24.2 24.2 100
Old Battle 9860 29.6 27.9 106 30.1 30.9 97
Rawah 9069 11.0 10.1 109 14.7 14.2 104
Sage Creek Basin 7850 14.7 12.1 121 14.1 11.8 119
Sand Lake 10098 27.0 24.6 110 26.0 22.8 114
South Brush Creek 8495 9.6 11.4 84 10.9 12.6 87
Tower 10620 37.9 39.4 96 35.3 36.6 96
Webber Springs 9260 21.9 20.7 106 23.5 23.6 100
Whiskey Park 9020 29.3 24.8 118 27.6 25.4 109
Willow Creek Pass 9523 13.1 12.0 109 13.9 12.7 109
Zirkel 9338 24.0 26.5 91 26.2 28.4 92
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Basin Index (%) 102 101
SWEETWATER
Deer Park 9700 16.0 13.2 121 18.3 16.3 112
Larsen Creek 9000 8.0 10.6 75 12.6 12.0 105
South Pass 9040 13.9 13.4 104 15.8 14.0 113
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Basin Index (%) 102 110
LOWER N. PLATTE
Casper Mtn. 7920 8.8 12.0 73 12.7 12.5 102
Laprele Creek 8390 6.7 9.0 74 9.8 10.6 92
Reno Hill 8430 8.4 12.6 67 12.3 12.7 97
Windy Peak 7915 7.6 7.6 100 9.0 9.0 100
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Basin Index (%) 76 98
LARAMIE RIVER
Brooklyn Lake 10250 22.6 19.8 114 23.1 19.6 118
Cinnabar Park 9707 18.7 19.2 97 21.2 21.7 98
Crow Creek 8335 5.2 6.2 84 9.5 9.8 97
Deadman Hill 10239 18.0 15.2 118 16.9 16.1 105
Rawah 9069 11.0 10.1 109 14.7 14.2 104
Roach 9740 13.7 14.3 96 15.8 17.0 93
Windy Peak 7915 7.6 7.6 100 9.0 9.0 100
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Basin Index (%) 105 103
S. PLATTE
Crow Creek 8335 5.2 6.2 84 9.5 9.8 97
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Basin Index (%) 84 97
LITTLE SNAKE RIVER
Battle Mountain 7498 11.6 11.0 105 17.6 13.8 128
Divide Peak 8730 19.3 18.2 106 22.3 20.2 110
Elk River 8739 16.9 17.0 99 17.9 17.4 103
Elkhead Divide 8800 20.7 -M * 21.9 -M *
Little Snake River 8928 27.0 24.8 109 30.4 29.6 103
Old Battle 9860 29.6 27.9 106 30.1 30.9 97
Sage Creek Basin 7850 14.7 12.1 121 14.1 11.8 119
Sandstone RS 8152 17.3 11.8 147 16.7 16.6 101
Whiskey Park 9020 29.3 24.8 118 27.6 25.4 109
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Basin Index (%) 112 107
UPPER GREEN RIVER
Big Sandy Opening 9080 11.4 12.4 92 12.3 11.9 103
Blind Bull Sum 8650 22.3 22.7 98 15.5 17.1 91
East Rim Divide 7930 8.2 10.3 80 9.7 10.5 92
Elkhart Park G.S. 9400 9.4 11.8 80 10.4 11.8 88
Gros Ventre Summit 8750 11.1 11.6 96 12.4 11.4 109
Gunsight Pass 9820 11.9 12.2 98 13.3 12.8 104
Indian Creek 9425 21.3 21.3 100 18.3 18.1 101
Kendall R.S. 7740 8.6 11.3 76 12.0 12.4 97
Larsen Creek 9000 8.0 10.6 75 12.6 12.0 105
Loomis Park 8240 11.3 14.5 78 13.7 15.8 87
New Fork Lake 8340 7.7 10.0 77 5.9 9.9 60
Pocket Creek 9360 -M -M * -M -M *
Snider Basin 8060 9.0 12.4 73 11.4 13.0 88
Spring Creek Divide 9000 -M 23.6 * -M 22.2 *
Triple Peak 8500 22.1 22.0 100 22.5 24.0 94
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Basin Index (%) 89 94
LOWER GREEN RIVER
Blacks Fork Jct 8869 10.9 7.8 140 13.3 11.2 119
Buck Pasture 9632 14.4 -M * 14.7 -M *
EF Blacks Fork GS 9360 8.1 11.0 74 9.5 10.0 95
Hams Fork 7840 -M 10.6 * 10.5 10.0 105
Henrys Fork 10182 -M -M * 12.8 -M *
Hewinta 9500 12.1 9.2 132 14.5 12.1 120
Hickerson Park 9122 11.0 7.1 155 13.2 9.2 143
Hole-in-Rock 9168 8.7 6.9 126 10.3 9.0 114
Indian Creek 9425 21.3 21.3 100 18.3 18.1 101
Kelley R.S. 8180 15.8 14.0 113 16.3 14.9 109
Spirit Lk 10235 14.2 11.6 122 17.6 15.6 113
Steel Creek Park 10158 14.5 13.4 108 16.7 14.2 118
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Basin Index (%) 114 113
UPPER BEAR RIVER
Bear River RS 8777 11.2 8.4 133 13.5 10.8 125
Bug Lake 7987 21.7 17.4 125 21.6 16.4 132
Burts Miller Ranch 8000 8.4 5.4 156 12.1 6.8 178
Chalk Creek #1 9171 21.7 21.0 103 22.8 21.0 109
Giveout 6930 10.2 8.0 128 12.0 10.7 112
Hayden Fork 9130 17.2 13.8 125 21.1 18.5 114
Kelley R.S. 8180 15.8 14.0 113 16.3 14.9 109
Lily Lake 9133 13.2 11.6 114 14.9 14.0 106
Monte Cristo 8932 27.6 24.6 112 26.4 23.2 114
Salt River Summit 7640 14.8 13.0 114 13.9 14.6 95
Spring Creek Divide 9000 -M 23.6 * -M 22.2 *
Trial Lake 9992 23.9 20.6 116 23.6 20.4 116
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Basin Index (%) 118 116
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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.