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 WEDNESDAY: MARCH 13 , 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 15.2 15.7 97 18.8 17.8 106
Blind Bull Sum 8650 21.8 20.8 105 15.2 15.9 96
Cottonwood Creek 7670 20.1 19.0 106 23.2 21.5 108
East Rim Divide 7930 8.6 9.7 89 9.8 10.0 98
Grand Targhee 9260 33.5 34.8 96 24.6 27.0 91
Granite Creek 6770 13.9 15.2 91 14.6 16.6 88
Grassy Lake 7265 26.2 27.8 94 31.3 30.6 102
Gros Ventre Summit 8750 10.5 10.7 98 11.8 10.4 113
Gunsight Pass 9820 11.5 11.4 101 12.8 11.9 108
Lewis Lake Divide 7850 28.9 26.5 109 32.1 28.2 114
Loomis Park 8240 12.0 13.5 89 13.3 14.6 91
Phillips Bench 8200 23.0 22.2 104 25.5 23.3 109
Salt River Summit 7640 14.4 11.6 124 13.5 13.4 101
Snake River Station 6920 15.6 15.4 101 21.2 19.1 111
Somsen Ranch 6800 16.6 11.7 142 19.9 14.4 138
Spring Creek Divide 9000 -M 21.0 * -M 20.8 *
Thumb Divide 7980 16.3 14.0 116 16.5 14.9 111
Togwotee Pass 9580 17.5 21.0 83 17.3 22.1 78
Triple Peak 8500 21.4 21.1 101 22.3 22.4 100
Two Ocean Plateau 9240 24.3 24.8 98 20.6 23.0 90
Willow Creek 8080 30.2 26.2 115 -M 28.3 *
Younts Peak 8350 13.1 13.1 100 13.9 12.8 109
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Basin Index (%) 102 102
MADISON HEADWATERS IN WYOMING
Black Bear 8170 30.5 32.7 93 34.2 32.1 107
Canyon 7870 9.7 -M * 12.4 -M *
Madison Plateau 7750 18.4 19.4 95 20.9 21.6 97
West Yellowstone 6700 8.4 10.0 84 12.6 12.7 99
Whiskey Creek 6800 12.2 14.0 87 18.1 17.2 105
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Basin Index (%) 91 103
YELLOWSTONE HEADWATERS IN WYOMING
Beartooth Lake 9360 13.5 19.2 70 13.1 17.6 74
Canyon 7870 9.7 -M * 12.4 -M *
Evening Star 9200 19.0 22.6 84 24.2 24.8 98
Fisher Creek 9100 19.8 28.2 70 22.2 27.7 80
Monument Peak 8850 12.5 18.2 69 15.5 18.2 85
Northeast Entrance 7350 5.3 9.3 57 8.9 11.6 77
Parker Peak 9400 17.9 18.5 97 19.6 17.5 112
Sylvan Lake 8420 14.7 17.1 86 20.5 19.4 106
Thumb Divide 7980 16.3 14.0 116 16.5 14.9 111
Two Ocean Plateau 9240 24.3 24.8 98 20.6 23.0 90
White Mill 8700 14.6 20.9 70 15.5 20.2 77
Wolverine 7650 9.4 10.8 87 12.4 11.0 113
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Basin Index (%) 82 92
WIND RIVER
Burroughs Creek 8750 10.8 -M * 10.8 -M *
Castle Creek 8400 6.0 6.9 87 7.1 7.5 95
Cold Springs 9630 7.6 6.3 121 10.2 7.4 138
Deer Park 9700 13.7 11.4 120 16.0 14.4 111
Hobbs Park 10100 13.3 11.4 117 13.8 10.1 137
Kirwin 9550 11.6 9.2 126 14.1 10.0 141
Little Warm 9370 9.0 8.9 101 11.8 10.3 115
South Pass 9040 11.7 12.5 94 13.6 12.6 108
St. Lawrence Alt 8620 4.8 -M * 8.2 -M *
Togwotee Pass 9580 17.5 21.0 83 17.3 22.1 78
Townsend Creek 8700 7.2 7.6 95 10.7 8.6 124
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Basin Index (%) 103 111
BIGHORN BASIN
Bald Mtn. 9380 11.0 16.0 69 10.4 13.5 77
Bear Trap Meadow 8200 3.2 5.7 56 6.1 6.7 91
Bone Springs Div 9350 10.3 13.8 75 10.1 12.8 79
Grave Springs 8550 3.4 7.4 46 5.6 7.8 72
Kirwin 9550 11.6 9.2 126 14.1 10.0 141
Marquette 8760 9.6 5.8 166 12.6 7.2 175
Middle Powder 7760 4.4 8.8 50 6.3 8.4 75
Owl Creek 8975 5.1 4.6 111 6.4 5.0 128
Powder River Pass 9480 5.3 9.2 58 8.7 10.4 84
Shell Creek 9580 10.1 12.6 80 10.8 11.4 95
Timber Creek 7950 7.1 4.3 165 11.1 6.2 179
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Basin Index (%) 83 103
SHOSHONE RIVER
Blackwater 9780 19.6 19.6 100 20.6 18.6 111
Evening Star 9200 19.0 22.6 84 24.2 24.8 98
Marquette 8760 9.6 5.8 166 12.6 7.2 175
Sylvan Lake 8420 14.7 17.1 86 20.5 19.4 106
Sylvan Road 7120 8.1 10.4 78 14.6 14.6 100
Younts Peak 8350 13.1 13.1 100 13.9 12.8 109
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Basin Index (%) 95 109
POWDER RIVER
Bear Trap Meadow 8200 3.2 5.7 56 6.1 6.7 91
Cloud Peak Reservoir 9860 9.9 12.4 80 11.6 11.0 105
Grave Springs 8550 3.4 7.4 46 5.6 7.8 72
Hansen Sawmill 8360 3.9 5.8 67 6.8 7.0 97
Middle Powder 7760 4.4 8.8 50 6.3 8.4 75
Powder River Pass 9480 5.3 9.2 58 8.7 10.4 84
Soldier Park 8720 3.3 5.8 57 8.2 7.7 106
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Basin Index (%) 61 90
TONGUE RIVER
Big Goose 7990 4.4 6.7 66 8.3 8.2 101
Bone Springs Div 9350 10.3 13.8 75 10.1 12.8 79
Burgess Junction 7880 5.9 9.1 65 9.4 9.9 95
Dome Lake 8880 -M 9.6 * 8.5 10.1 84
Little Goose 8870 6.1 7.8 78 9.5 9.8 97
Sucker Creek 8880 7.7 10.4 74 11.1 11.6 96
Tie Creek 6870 1.7 4.9 35 10.1 8.9 113
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Basin Index (%) 69 94
BELLE FOURCHE
Blind Park 6890 2.7 7.0 39 5.3 9.3 57
Cole Canyon 5910 2.4 5.1 47 4.3 7.4 58
North Rapid Creek 6130 4.8 6.2 77 6.0 7.6 79
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Basin Index (%) 54 64
CHEYENNE RIVER BASIN
Blind Park 6890 2.7 7.0 39 5.3 9.3 57
North Rapid Creek 6130 4.8 6.2 77 6.0 7.6 79
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Basin Index (%) 57 67
UPPER N. PLATTE
Arapaho Ridge 10976 18.7 18.3 102 18.5 18.4 101
Blackhall Mtn 9839 29.5 24.0 123 30.3 23.6 128
Cinnabar Park 9707 15.0 18.4 82 17.5 20.8 84
Columbine 9167 24.3 20.7 117 22.9 20.8 110
Divide Peak 8730 17.9 16.9 106 21.0 18.2 115
Joe Wright 10158 16.3 18.0 91 20.0 22.2 90
Laprele Creek 8390 5.7 8.3 69 8.6 9.6 90
Med Bow 10512 31.6 -M * 28.5 -M *
Never Summer 10323 15.5 17.2 90 12.0 14.5 83
North French Creek 10153 23.1 24.0 96 22.7 22.2 102
Old Battle 9860 27.6 26.0 106 28.5 28.4 100
Rawah 9069 10.0 9.6 104 13.0 13.2 98
Sage Creek Basin 7850 11.9 12.6 94 13.0 11.1 117
Sand Lake 10098 23.7 22.4 106 22.9 20.5 112
South Brush Creek 8495 9.3 10.3 90 10.1 11.5 88
Tower 10620 36.4 37.8 96 33.8 34.4 98
Webber Springs 9260 20.7 18.8 110 22.2 21.2 105
Whiskey Park 9020 28.3 23.8 119 26.4 23.8 111
Willow Creek Pass 9523 12.0 11.0 109 12.8 11.6 110
Zirkel 9338 23.8 25.0 95 25.2 26.5 95
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Basin Index (%) 102 102
SWEETWATER
Deer Park 9700 13.7 11.4 120 16.0 14.4 111
Larsen Creek 9000 7.5 10.2 74 11.1 11.1 100
South Pass 9040 11.7 12.5 94 13.6 12.6 108
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Basin Index (%) 96 107
LOWER N. PLATTE
Casper Mtn. 7920 6.2 11.0 56 11.0 11.1 99
Laprele Creek 8390 5.7 8.3 69 8.6 9.6 90
Reno Hill 8430 7.0 11.4 61 10.9 11.9 92
Windy Peak 7915 6.4 6.7 96 7.8 8.1 96
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Basin Index (%) 68 94
LARAMIE RIVER
Brooklyn Lake 10250 20.2 17.2 117 20.7 18.2 114
Cinnabar Park 9707 15.0 18.4 82 17.5 20.8 84
Crow Creek 8335 3.3 6.3 52 7.5 8.3 90
Deadman Hill 10239 14.8 14.2 104 14.0 14.4 97
Rawah 9069 10.0 9.6 104 13.0 13.2 98
Roach 9740 11.1 13.2 84 13.4 15.6 86
Windy Peak 7915 6.4 6.7 96 7.8 8.1 96
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Basin Index (%) 94 95
S. PLATTE
Crow Creek 8335 3.3 6.3 52 7.5 8.3 90
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Basin Index (%) 52 90
LITTLE SNAKE RIVER
Battle Mountain 7498 12.0 10.6 113 16.7 13.0 128
Divide Peak 8730 17.9 16.9 106 21.0 18.2 115
Elk River 8739 17.1 16.7 102 17.1 16.2 106
Elkhead Divide 8800 20.8 -M * 21.2 -M *
Little Snake River 8928 26.3 23.2 113 29.3 27.6 106
Old Battle 9860 27.6 26.0 106 28.5 28.4 100
Sage Creek Basin 7850 11.9 12.6 94 13.0 11.1 117
Sandstone RS 8152 17.4 11.8 147 16.0 15.8 101
Whiskey Park 9020 28.3 23.8 119 26.4 23.8 111
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Basin Index (%) 112 109
UPPER GREEN RIVER
Big Sandy Opening 9080 10.2 11.0 93 11.1 10.6 105
Blind Bull Sum 8650 21.8 20.8 105 15.2 15.9 96
East Rim Divide 7930 8.6 9.7 89 9.8 10.0 98
Elkhart Park G.S. 9400 8.7 10.5 83 9.9 10.8 92
Gros Ventre Summit 8750 10.5 10.7 98 11.8 10.4 113
Gunsight Pass 9820 11.5 11.4 101 12.8 11.9 108
Indian Creek 9425 20.4 20.2 101 17.7 17.1 104
Kendall R.S. 7740 9.1 10.8 84 11.8 11.7 101
Larsen Creek 9000 7.5 10.2 74 11.1 11.1 100
Loomis Park 8240 12.0 13.5 89 13.3 14.6 91
New Fork Lake 8340 8.0 9.3 86 -M 9.2 *
Pocket Creek 9360 -M -M * -M -M *
Snider Basin 8060 9.0 11.5 78 11.2 12.4 90
Spring Creek Divide 9000 -M 21.0 * -M 20.8 *
Triple Peak 8500 21.4 21.1 101 22.3 22.4 100
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Basin Index (%) 93 99
LOWER GREEN RIVER
Blacks Fork Jct 8869 10.7 7.4 145 12.8 10.2 125
Buck Pasture 9632 13.8 -M * 14.1 -M *
EF Blacks Fork GS 9360 7.9 10.0 79 9.2 9.6 96
Hams Fork 7840 -M 10.2 * 10.0 9.4 106
Henrys Fork 10182 -M -M * 11.6 -M *
Hewinta 9500 11.1 8.8 126 13.7 11.0 125
Hickerson Park 9122 9.4 6.6 142 11.6 8.6 135
Hole-in-Rock 9168 7.7 6.2 124 9.2 8.3 111
Indian Creek 9425 20.4 20.2 101 17.7 17.1 104
Kelley R.S. 8180 14.9 12.8 116 15.7 14.2 111
Spirit Lk 10235 12.4 9.9 125 15.9 13.8 115
Steel Creek Park 10158 13.7 12.5 110 15.9 13.0 122
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Basin Index (%) 115 114
UPPER BEAR RIVER
Bear River RS 8777 11.0 8.0 138 13.0 9.7 134
Bug Lake 7987 21.6 16.3 133 20.8 15.2 137
Burts Miller Ranch 8000 8.6 5.5 156 11.6 6.4 181
Chalk Creek #1 9171 20.7 19.7 105 21.5 19.6 110
Giveout 6930 10.9 8.2 133 11.9 10.2 117
Hayden Fork 9130 16.6 13.0 128 20.3 17.4 117
Kelley R.S. 8180 14.9 12.8 116 15.7 14.2 111
Lily Lake 9133 12.8 11.0 116 14.4 13.4 107
Monte Cristo 8932 26.2 22.9 114 25.2 21.7 116
Salt River Summit 7640 14.4 11.6 124 13.5 13.4 101
Spring Creek Divide 9000 -M 21.0 * -M 20.8 *
Trial Lake 9992 23.0 19.2 120 22.4 18.8 119
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Basin Index (%) 122 119
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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.