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: FEBRUARY 23 , 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 11.2 14.2 79 14.8 16.1 92
Blind Bull Sum 8650 16.5 18.6 89 11.6 14.4 81
Cottonwood Creek 7670 17.1 16.5 104 20.3 19.0 107
East Rim Divide 7930 6.8 8.1 84 8.0 8.4 95
Grand Targhee 9260 28.8 32.1 90 22.5 25.3 89
Granite Creek 6770 10.2 13.7 74 11.5 15.2 76
Grassy Lake 7265 19.6 24.8 79 25.5 27.2 94
Gros Ventre Summit 8750 7.6 9.2 83 9.1 8.8 103
Gunsight Pass 9820 9.1 9.8 93 11.2 10.6 106
Lewis Lake Divide 7850 20.9 23.0 91 25.1 25.6 98
Loomis Park 8240 9.5 12.0 79 10.7 12.7 84
Phillips Bench 8200 16.9 19.6 86 19.8 20.8 95
Salt River Summit 7640 11.5 10.2 113 11.2 11.9 94
Snake River Station 6920 11.8 13.8 86 17.4 17.0 102
Somsen Ranch 6800 12.2 10.3 118 16.2 12.8 127
Spring Creek Divide 9000 17.0 18.8 90 17.1 18.4 93
Thumb Divide 7980 10.5 11.8 89 11.8 13.0 91
Togwotee Pass 9580 13.7 17.7 77 13.3 18.7 71
Triple Peak 8500 15.9 17.6 90 17.5 19.5 90
Two Ocean Plateau 9240 17.8 22.0 81 18.1 19.6 92
Willow Creek 8080 23.3 21.8 107 25.0 24.9 100
Younts Peak 8350 8.7 11.1 78 10.5 11.1 95
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Basin Index (%) 89 94
MADISON HEADWATERS IN WYOMING
Black Bear 8170 22.1 28.5 78 26.8 27.4 98
Canyon 7870 7.0 -M * 9.5 -M *
Madison Plateau 7750 13.0 16.6 78 16.4 18.4 89
West Yellowstone 6700 5.5 8.6 64 9.7 10.8 90
Whiskey Creek 6800 8.9 11.5 77 14.4 14.4 100
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Basin Index (%) 76 95
YELLOWSTONE HEADWATERS IN WYOMING
Beartooth Lake 9360 10.2 17.0 60 10.0 15.8 63
Canyon 7870 7.0 -M * 9.5 -M *
Evening Star 9200 14.3 20.8 69 20.1 23.0 87
Fisher Creek 9100 13.4 25.8 52 16.4 24.6 67
Monument Peak 8850 -M 15.7 * 12.4 16.8 74
Northeast Entrance 7350 3.4 8.2 41 6.9 10.3 67
Parker Peak 9400 13.6 16.2 84 15.5 15.4 101
Sylvan Lake 8420 11.0 14.8 74 16.7 17.8 94
Thumb Divide 7980 10.5 11.8 89 11.8 13.0 91
Two Ocean Plateau 9240 17.8 22.0 81 18.1 19.6 92
White Mill 8700 11.0 18.3 60 12.1 17.8 68
Wolverine 7650 7.5 9.2 82 10.5 9.7 108
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Basin Index (%) 69 82
WIND RIVER
Burroughs Creek 8750 8.5 -M * 8.7 -M *
Castle Creek 8400 5.1 5.9 86 6.2 6.8 91
Cold Springs 9630 5.9 5.6 105 8.5 6.7 127
Deer Park 9700 12.4 9.8 127 14.2 12.3 115
Hobbs Park 10100 11.1 9.4 118 12.0 8.2 146
Kirwin 9550 8.8 8.0 110 11.2 8.7 129
Little Warm 9370 6.8 7.6 89 9.2 9.0 102
South Pass 9040 10.5 10.2 103 12.2 10.4 117
St. Lawrence Alt 8620 4.0 -M * 7.1 -M *
Togwotee Pass 9580 13.7 17.7 77 13.3 18.7 71
Townsend Creek 8700 6.4 6.3 102 9.8 7.8 126
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Basin Index (%) 100 109
BIGHORN BASIN
Bald Mtn. 9380 9.1 14.0 65 8.8 12.1 73
Bear Trap Meadow 8200 2.8 4.6 61 5.5 6.0 92
Bone Springs Div 9350 8.0 11.8 68 8.4 11.2 75
Grave Springs 8550 2.9 6.0 48 5.2 6.6 79
Kirwin 9550 8.8 8.0 110 11.2 8.7 129
Marquette 8760 8.8 4.9 180 11.6 6.5 178
Middle Powder 7760 3.8 7.4 51 5.8 6.8 85
Owl Creek 8975 -M 4.0 * -M 4.4 *
Powder River Pass 9480 4.6 8.2 56 7.8 9.5 82
Shell Creek 9580 8.6 11.0 78 9.4 10.4 90
Timber Creek 7950 6.0 3.2 188 9.9 5.3 187
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Basin Index (%) 80 101
SHOSHONE RIVER
Blackwater 9780 15.6 16.7 93 16.0 16.3 98
Evening Star 9200 14.3 20.8 69 20.1 23.0 87
Marquette 8760 8.8 4.9 180 11.6 6.5 178
Sylvan Lake 8420 11.0 14.8 74 16.7 17.8 94
Sylvan Road 7120 5.6 9.1 62 12.1 13.5 90
Younts Peak 8350 8.7 11.1 78 10.5 11.1 95
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Basin Index (%) 83 99
POWDER RIVER
Bear Trap Meadow 8200 2.8 4.6 61 5.5 6.0 92
Cloud Peak Reservoir 9860 8.1 10.4 78 9.8 9.6 102
Grave Springs 8550 2.9 6.0 48 5.2 6.6 79
Hansen Sawmill 8360 2.8 5.0 56 5.8 5.8 100
Middle Powder 7760 3.8 7.4 51 5.8 6.8 85
Powder River Pass 9480 4.6 8.2 56 7.8 9.5 82
Soldier Park 8720 2.4 5.0 48 7.1 6.8 104
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Basin Index (%) 59 92
TONGUE RIVER
Big Goose 7990 3.4 5.8 59 7.3 7.4 99
Bone Springs Div 9350 8.0 11.8 68 8.4 11.2 75
Burgess Junction 7880 4.6 7.8 59 8.0 8.6 93
Dome Lake 8880 -M 8.1 * 7.1 9.0 79
Little Goose 8870 5.1 7.2 71 8.3 9.0 92
Sucker Creek 8880 6.4 8.8 73 9.7 10.0 97
Tie Creek 6870 1.0 4.2 24 9.0 7.9 114
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Basin Index (%) 62 92
BELLE FOURCHE
Blind Park 6890 2.8 6.1 46 4.9 8.0 61
Cole Canyon 5910 2.4 4.6 52 4.2 6.6 64
North Rapid Creek 6130 4.6 5.8 79 5.9 6.6 89
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Basin Index (%) 59 71
CHEYENNE RIVER BASIN
Blind Park 6890 2.8 6.1 46 4.9 8.0 61
North Rapid Creek 6130 4.6 5.8 79 5.9 6.6 89
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Basin Index (%) 62 74
UPPER N. PLATTE
Arapaho Ridge 10976 15.8 16.8 94 15.8 16.8 94
Blackhall Mtn 9839 25.1 21.7 116 26.0 21.7 120
Cinnabar Park 9707 12.5 16.2 77 14.8 18.2 81
Columbine 9167 20.0 17.7 113 19.6 18.2 108
Divide Peak 8730 15.0 14.5 103 18.3 16.4 112
Joe Wright 10158 12.5 14.8 84 16.6 19.2 86
Laprele Creek 8390 5.5 6.8 81 8.2 8.2 100
Med Bow 10512 26.7 -M * 24.8 -M *
Never Summer 10323 12.9 15.0 86 9.7 12.4 78
North French Creek 10153 18.9 20.6 92 19.4 19.4 100
Old Battle 9860 23.8 23.2 103 24.4 25.4 96
Rawah 9069 8.2 8.6 95 11.4 12.1 94
Sage Creek Basin 7850 10.1 11.3 89 11.6 10.2 114
Sand Lake 10098 19.2 20.2 95 18.9 17.5 108
South Brush Creek 8495 7.1 9.0 79 8.5 10.4 82
Tower 10620 32.5 32.5 100 30.3 30.0 101
Webber Springs 9260 17.6 16.3 108 18.8 19.1 98
Whiskey Park 9020 24.2 20.3 119 23.8 21.4 111
Willow Creek Pass 9523 9.5 10.2 93 10.6 10.2 104
Zirkel 9338 20.3 22.2 91 22.0 23.9 92
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Basin Index (%) 98 99
SWEETWATER
Deer Park 9700 12.4 9.8 127 14.2 12.3 115
Larsen Creek 9000 6.3 8.4 75 10.3 10.2 101
South Pass 9040 10.5 10.2 103 12.2 10.4 117
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Basin Index (%) 103 112
LOWER N. PLATTE
Casper Mtn. 7920 6.1 9.4 65 10.6 9.4 113
Laprele Creek 8390 5.5 6.8 81 8.2 8.2 100
Reno Hill 8430 6.8 9.5 72 10.8 10.4 104
Windy Peak 7915 5.6 5.7 98 6.9 7.2 96
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Basin Index (%) 76 104
LARAMIE RIVER
Brooklyn Lake 10250 16.9 15.6 108 17.5 16.0 109
Cinnabar Park 9707 12.5 16.2 77 14.8 18.2 81
Crow Creek 8335 2.7 5.9 46 6.3 7.7 82
Deadman Hill 10239 12.2 12.6 97 11.5 12.8 90
Rawah 9069 8.2 8.6 95 11.4 12.1 94
Roach 9740 9.1 11.8 77 11.2 14.2 79
Windy Peak 7915 5.6 5.7 98 6.9 7.2 96
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Basin Index (%) 88 90
S. PLATTE
Crow Creek 8335 2.7 5.9 46 6.3 7.7 82
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Basin Index (%) 46 82
LITTLE SNAKE RIVER
Battle Mountain 7498 9.8 9.4 104 14.5 11.6 125
Divide Peak 8730 15.0 14.5 103 18.3 16.4 112
Elk River 8739 14.3 14.2 101 14.9 14.6 102
Elkhead Divide 8800 18.0 -M * 19.0 -M *
Little Snake River 8928 23.4 21.2 110 26.6 26.7 100
Old Battle 9860 23.8 23.2 103 24.4 25.4 96
Sage Creek Basin 7850 10.1 11.3 89 11.6 10.2 114
Sandstone RS 8152 14.7 10.1 146 14.2 13.8 103
Whiskey Park 9020 24.2 20.3 119 23.8 21.4 111
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Basin Index (%) 109 106
UPPER GREEN RIVER
Big Sandy Opening 9080 9.2 9.5 97 10.0 9.2 109
Blind Bull Sum 8650 16.5 18.6 89 11.6 14.4 81
East Rim Divide 7930 6.8 8.1 84 8.0 8.4 95
Elkhart Park G.S. 9400 7.4 9.0 82 8.7 9.4 93
Gros Ventre Summit 8750 7.6 9.2 83 9.1 8.8 103
Gunsight Pass 9820 9.1 9.8 93 11.2 10.6 106
Indian Creek 9425 17.0 17.0 100 15.1 15.0 101
Kendall R.S. 7740 6.8 9.5 72 9.7 10.4 93
Larsen Creek 9000 6.3 8.4 75 10.3 10.2 101
Loomis Park 8240 9.5 12.0 79 10.7 12.7 84
New Fork Lake 8340 6.4 8.0 80 -M 8.0 *
Pocket Creek 9360 -M -M * -M -M *
Snider Basin 8060 7.4 10.1 73 9.4 10.7 88
Spring Creek Divide 9000 17.0 18.8 90 17.1 18.4 93
Triple Peak 8500 15.9 17.6 90 17.5 19.5 90
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Basin Index (%) 86 94
LOWER GREEN RIVER
Blacks Fork Jct 8869 8.8 6.4 138 11.0 9.5 116
Buck Pasture 9632 11.2 -M * 12.1 -M *
EF Blacks Fork GS 9360 6.6 8.0 82 7.8 8.0 98
Hams Fork 7840 -M 8.8 * 8.7 8.4 104
Henrys Fork 10182 -M -M * 9.9 -M *
Hewinta 9500 8.7 7.2 121 11.6 10.0 116
Hickerson Park 9122 6.6 5.6 118 9.3 7.6 122
Hole-in-Rock 9168 6.1 5.4 113 7.4 7.2 103
Indian Creek 9425 17.0 17.0 100 15.1 15.0 101
Kelley R.S. 8180 12.7 11.1 114 13.5 12.7 106
Spirit Lk 10235 9.7 8.6 113 13.4 12.3 109
Steel Creek Park 10158 11.3 11.0 103 13.5 11.9 113
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Basin Index (%) 109 108
UPPER BEAR RIVER
Bear River RS 8777 8.6 7.2 119 10.8 8.9 121
Bug Lake 7987 18.7 14.4 130 18.5 13.8 134
Burts Miller Ranch 8000 6.6 5.0 132 10.0 5.7 175
Chalk Creek #1 9171 16.9 16.2 104 18.8 17.1 110
Giveout 6930 8.2 7.6 108 9.8 9.4 104
Hayden Fork 9130 13.3 11.4 117 17.4 15.3 114
Kelley R.S. 8180 12.7 11.1 114 13.5 12.7 106
Lily Lake 9133 10.7 9.6 111 12.2 11.6 105
Monte Cristo 8932 22.7 19.6 116 21.4 19.1 112
Salt River Summit 7640 11.5 10.2 113 11.2 11.9 94
Spring Creek Divide 9000 17.0 18.8 90 17.1 18.4 93
Trial Lake 9992 18.8 16.6 113 19.3 17.0 114
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Basin Index (%) 112 112
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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.