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 THURSDAY: MARCH 3 , 2022
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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 15.0 75 13.8 16.9 82
Blind Bull Sum 8650 15.4 19.5 79 11.6 15.2 76
Cottonwood Creek 7670 13.1 17.8 74 19.1 19.8 96
East Rim Divide 7930 6.9 9.0 77 8.6 9.2 93
Grand Targhee 9260 23.8 33.2 72 22.1 26.1 85
Granite Creek 6770 8.8 14.4 61 -M 16.0 *
Grassy Lake 7265 18.1 26.4 69 25.2 28.7 88
Gros Ventre Summit 8750 8.5 9.6 89 9.0 9.6 94
Gunsight Pass 9820 9.9 10.6 93 10.5 11.2 94
Lewis Lake Divide 7850 19.6 24.6 80 26.5 26.8 99
Loomis Park 8240 9.2 12.8 72 12.0 13.9 86
Phillips Bench 8200 15.1 21.0 72 18.4 22.0 84
Salt River Summit 7640 8.7 10.8 81 12.9 12.8 101
Snake River Station 6920 10.0 14.6 68 15.5 17.4 89
Somsen Ranch 6800 9.1 10.9 83 14.3 13.4 107
Spring Creek Divide 9000 15.5 19.6 79 18.0 19.2 94
Thumb Divide 7980 12.2 13.0 94 14.7 13.8 107
Togwotee Pass 9580 16.0 18.8 85 17.0 19.9 85
Triple Peak 8500 15.3 19.6 78 19.6 20.6 95
Two Ocean Plateau 9240 21.1 22.8 93 19.1 20.6 93
Willow Creek 8080 18.0 23.8 76 24.1 25.9 93
Younts Peak 8350 11.4 11.8 97 9.0 11.7 77
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Basin Index (%) 78 91
MADISON HEADWATERS IN WYOMING
Black Bear 8170 24.8 30.2 82 25.7 30.0 86
Canyon 7870 7.2 -M * 10.2 -M *
Madison Plateau 7750 14.2 17.6 81 17.3 20.1 86
West Yellowstone 6700 7.3 9.3 78 10.4 11.3 92
Whiskey Creek 6800 9.3 12.2 76 -M 15.8 *
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Basin Index (%) 80 87
YELLOWSTONE HEADWATERS IN WYOMING
Beartooth Lake 9360 13.5 18.0 75 12.7 16.6 77
Canyon 7870 7.2 -M * 10.2 -M *
Evening Star 9200 20.1 22.0 91 20.1 23.9 84
Fisher Creek 9100 22.9 26.7 86 24.4 25.8 95
Monument Peak 8850 13.5 16.6 81 16.4 17.2 95
Northeast Entrance 7350 5.2 8.8 59 8.9 10.9 82
Parker Peak 9400 15.3 17.4 88 15.1 15.8 96
Sylvan Lake 8420 12.6 15.8 80 17.1 18.5 92
Thumb Divide 7980 12.2 13.0 94 14.7 13.8 107
Two Ocean Plateau 9240 21.1 22.8 93 19.1 20.6 93
White Mill 8700 15.3 19.2 80 15.2 18.8 81
Wolverine 7650 9.0 9.8 92 9.6 10.2 94
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Basin Index (%) 85 90
WIND RIVER
Burroughs Creek 8750 6.5 -M * 9.9 -M *
Castle Creek 8400 3.8 6.3 60 4.9 7.0 70
Cold Springs 9630 7.5 5.8 129 9.7 7.0 139
Deer Park 9700 8.5 10.4 82 12.0 13.1 92
Hobbs Park 10100 11.6 10.6 109 12.1 9.0 134
Kirwin 9550 9.1 8.6 106 10.5 9.1 115
Little Warm 9370 8.7 7.8 112 11.1 9.6 116
South Pass 9040 8.6 11.4 75 10.9 11.8 92
St. Lawrence Alt 8620 1.4 -M * 7.0 -M *
Togwotee Pass 9580 16.0 18.8 85 17.0 19.9 85
Townsend Creek 8700 6.6 6.8 97 9.4 8.1 116
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Basin Index (%) 93 103
BIGHORN BASIN
Bald Mtn. 9380 12.1 14.9 81 11.2 12.9 87
Bear Trap Meadow 8200 4.6 5.2 88 6.8 6.4 106
Bone Springs Div 9350 11.8 13.0 91 10.2 12.4 82
Grave Springs 8550 4.8 6.6 73 6.6 6.8 97
Kirwin 9550 9.1 8.6 106 10.5 9.1 115
Marquette 8760 2.9 5.4 54 6.4 6.8 94
Middle Powder 7760 6.0 8.0 75 7.1 7.4 96
Owl Creek 8975 4.5 4.4 102 5.5 4.8 115
Powder River Pass 9480 7.1 8.6 83 6.8 9.6 71
Shell Creek 9580 10.1 11.9 85 10.1 10.8 94
Timber Creek 7950 2.9 4.0 72 5.5 5.6 98
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Basin Index (%) 84 94
SHOSHONE RIVER
Blackwater 9780 15.6 17.4 90 17.3 17.1 101
Evening Star 9200 20.1 22.0 91 20.1 23.9 84
Marquette 8760 2.9 5.4 54 6.4 6.8 94
Sylvan Lake 8420 12.6 15.8 80 17.1 18.5 92
Sylvan Road 7120 6.4 10.2 63 -M 14.2 *
Younts Peak 8350 11.4 11.8 97 9.0 11.7 77
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Basin Index (%) 84 90
POWDER RIVER
Bear Trap Meadow 8200 4.6 5.2 88 6.8 6.4 106
Cloud Peak Reservoir 9860 10.2 11.6 88 11.0 10.2 108
Grave Springs 8550 4.8 6.6 73 6.6 6.8 97
Hansen Sawmill 8360 4.9 5.3 92 7.5 6.2 121
Middle Powder 7760 6.0 8.0 75 7.1 7.4 96
Powder River Pass 9480 7.1 8.6 83 6.8 9.6 71
Soldier Park 8720 2.3 5.2 44 7.4 7.0 106
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Basin Index (%) 79 99
TONGUE RIVER
Big Goose 7990 5.0 6.0 83 8.4 7.9 106
Bone Springs Div 9350 11.8 13.0 91 10.2 12.4 82
Burgess Junction 7880 7.9 8.3 95 10.1 9.4 107
Dome Lake 8880 7.9 8.8 90 10.1 9.5 106
Little Goose 8870 6.2 7.6 82 10.0 9.4 106
Sucker Creek 8880 9.0 9.9 91 12.1 10.8 112
Tie Creek 6870 3.3 4.5 73 9.1 8.6 106
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Basin Index (%) 88 103
BELLE FOURCHE
Blind Park 6890 3.9 6.7 58 6.8 8.8 77
Cole Canyon 5910 3.5 4.7 74 7.3 7.4 99
North Rapid Creek 6130 4.7 6.0 78 4.9 7.2 68
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Basin Index (%) 70 81
CHEYENNE RIVER BASIN
Blind Park 6890 3.9 6.7 58 6.8 8.8 77
North Rapid Creek 6130 4.7 6.0 78 4.9 7.2 68
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Basin Index (%) 68 73
UPPER N. PLATTE
Arapaho Ridge 10960 16.6 17.6 94 16.1 17.6 91
Blackhall Mtn 9820 22.8 22.5 101 24.2 22.4 108
Cinnabar Park 9574 14.8 17.2 86 17.1 19.7 87
Columbine 9160 16.5 19.2 86 19.0 19.4 98
Divide Peak 8880 12.4 15.4 81 16.8 17.0 99
Joe Wright 10120 16.8 16.8 100 22.9 20.9 110
Laprele Creek 8375 5.1 7.4 69 8.5 8.5 100
Med Bow 10500 24.5 -M * 23.3 -M *
Never Summer 10280 16.7 16.2 103 12.7 13.8 92
North French Creek 10130 19.0 22.2 86 20.4 21.4 95
Old Battle 10000 22.3 24.4 91 24.4 27.4 89
Rawah 9020 8.3 9.4 88 10.9 12.7 86
Sage Creek Basin 7850 9.1 11.5 79 8.6 10.8 80
Sand Lake 10050 19.6 21.5 91 20.0 18.5 108
South Brush Creek 8440 7.4 9.5 78 9.6 10.9 88
Tower 10500 30.0 35.3 85 31.3 32.8 95
Webber Springs 9250 16.5 16.8 98 20.3 20.5 99
Whiskey Park 8950 19.9 21.8 91 23.2 22.2 105
Willow Creek Pass 9540 11.4 10.6 108 12.0 10.6 113
Zirkel 9340 19.9 23.6 84 26.6 25.2 106
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Basin Index (%) 90 98
SWEETWATER
Deer Park 9700 8.5 10.4 82 12.0 13.1 92
Larsen Creek 9000 -M 9.6 * 8.9 10.9 82
South Pass 9040 8.6 11.4 75 10.9 11.8 92
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Basin Index (%) 78 89
LOWER N. PLATTE
Casper Mtn. 7900 7.5 9.8 77 12.3 10.2 121
Laprele Creek 8375 5.1 7.4 69 8.5 8.5 100
Reno Hill 8400 9.2 10.6 87 12.7 10.8 118
Windy Peak 7900 5.1 6.1 84 8.3 7.4 112
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Basin Index (%) 79 113
LARAMIE RIVER
Brooklyn Lake 10240 15.5 16.8 92 18.1 17.3 105
Cinnabar Park 9574 14.8 17.2 86 17.1 19.7 87
Crow Creek 8330 3.8 5.9 64 7.7 7.8 99
Deadman Hill 10220 15.5 13.4 116 14.1 13.6 104
Rawah 9020 8.3 9.4 88 10.9 12.7 86
Roach 9700 13.1 12.4 106 15.9 14.8 107
Windy Peak 7900 5.1 6.1 84 8.3 7.4 112
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Basin Index (%) 94 99
S. PLATTE
Crow Creek 8330 3.8 5.9 64 7.7 7.8 99
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Basin Index (%) 64 99
LITTLE SNAKE RIVER
Battle Mountain 7440 7.7 10.4 74 12.6 12.4 102
Divide Peak 8880 12.4 15.4 81 16.8 17.0 99
Elk River 8700 14.8 15.8 94 18.3 15.4 119
Elkhead Divide 8780 14.1 -M * 17.8 -M *
Little Snake River 8915 16.7 22.4 75 25.3 27.2 93
Old Battle 10000 22.3 24.4 91 24.4 27.4 89
Sage Creek Basin 7850 9.1 11.5 79 8.6 10.8 80
Sandstone RS 8150 10.2 10.4 98 12.7 14.8 86
Whiskey Park 8950 19.9 21.8 91 23.2 22.2 105
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Basin Index (%) 86 96
UPPER GREEN RIVER
Big Sandy Opening 9080 7.2 10.3 70 9.1 10.2 89
Blind Bull Sum 8650 15.4 19.5 79 11.6 15.2 76
East Rim Divide 7930 6.9 9.0 77 8.6 9.2 93
Elkhart Park G.S. 9400 6.2 9.8 63 7.2 10.0 72
Gros Ventre Summit 8750 8.5 9.6 89 9.0 9.6 94
Gunsight Pass 9820 9.9 10.6 93 10.5 11.2 94
Indian Creek 9425 15.2 19.0 80 15.3 16.0 96
Kendall R.S. 7740 7.3 9.8 74 10.8 10.7 101
Larsen Creek 9000 -M 9.6 * 8.9 10.9 82
Loomis Park 8240 9.2 12.8 72 12.0 13.9 86
New Fork Lake 8340 6.2 8.7 71 -M 8.4 *
Pocket Creek 9360 -M -M * -M -M *
Snider Basin 8060 7.6 10.8 70 12.6 11.4 111
Spring Creek Divide 9000 15.5 19.6 79 18.0 19.2 94
Triple Peak 8500 15.3 19.6 78 19.6 20.6 95
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Basin Index (%) 77 91
LOWER GREEN RIVER
Blacks Fork Jct 8869 6.6 6.8 97 9.3 9.8 95
Buck Pasture 9632 8.9 -M * 11.9 -M *
EF Blacks Fork GS 9360 6.0 9.2 65 9.6 8.8 109
Hams Fork 7840 7.2 9.2 78 9.4 8.8 107
Henrys Fork 10182 -M -M * 8.8 -M *
Hewinta 9500 6.3 8.2 77 11.4 10.6 108
Hickerson Park 9122 4.9 6.3 78 7.3 8.2 89
Hole-in-Rock 9168 4.4 5.7 77 7.5 7.6 99
Indian Creek 9425 15.2 19.0 80 15.3 16.0 96
Kelley R.S. 8180 8.5 12.0 71 13.6 13.4 101
Spirit Lk 10235 9.5 9.3 102 12.7 12.8 99
Steel Creek Park 10158 10.8 11.7 92 13.5 12.8 105
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Basin Index (%) 82 101
UPPER BEAR RIVER
Bear River RS 8777 6.8 7.9 86 10.6 9.4 113
Bug Lake 7987 11.2 14.8 76 15.0 14.6 103
Burts Miller Ranch 8000 4.7 5.5 85 6.3 5.8 109
Chalk Creek #1 9171 14.0 18.2 77 17.4 18.1 96
Giveout 6930 6.0 8.0 75 10.0 9.9 101
Hayden Fork 9130 10.4 11.8 88 16.9 16.4 103
Kelley R.S. 8180 8.5 12.0 71 13.6 13.4 101
Lily Lake 9133 7.9 10.4 76 12.4 12.5 99
Monte Cristo 8932 16.5 21.0 79 20.4 20.4 100
Salt River Summit 7640 8.7 10.8 81 12.9 12.8 101
Spring Creek Divide 9000 15.5 19.6 79 18.0 19.2 94
Trial Lake 9992 12.8 17.8 72 16.7 18.0 93
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Basin Index (%) 78 100
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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.
