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 SATURDAY: MARCH 9 , 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 14.9 15.4 97 18.7 17.4 107
Blind Bull Sum 8650 20.9 20.6 101 14.8 15.8 94
Cottonwood Creek 7670 19.6 18.9 104 23.1 21.2 109
East Rim Divide 7930 8.4 9.6 88 9.6 9.8 98
Grand Targhee 9260 33.3 34.2 97 24.5 26.5 92
Granite Creek 6770 13.7 15.2 90 14.4 16.3 88
Grassy Lake 7265 25.3 27.4 92 31.1 29.8 104
Gros Ventre Summit 8750 10.2 10.6 96 11.8 10.2 116
Gunsight Pass 9820 11.3 11.0 103 12.8 11.7 109
Lewis Lake Divide 7850 28.3 25.6 111 31.8 28.0 114
Loomis Park 8240 11.7 13.4 87 13.1 14.4 91
Phillips Bench 8200 22.5 22.1 102 25.1 23.0 109
Salt River Summit 7640 13.9 11.4 122 13.2 13.1 101
Snake River Station 6920 15.3 15.2 101 21.0 19.0 111
Somsen Ranch 6800 16.2 11.3 143 19.5 14.1 138
Spring Creek Divide 9000 -M 20.6 * -M 20.0 *
Thumb Divide 7980 15.9 13.5 118 16.2 14.8 109
Togwotee Pass 9580 17.5 20.3 86 17.2 21.4 80
Triple Peak 8500 21.0 20.8 101 21.8 21.9 100
Two Ocean Plateau 9240 23.8 24.1 99 19.8 22.3 89
Willow Creek 8080 29.1 25.4 115 -M 28.0 *
Younts Peak 8350 12.8 13.0 98 13.6 12.4 110
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Basin Index (%) 102 103
MADISON HEADWATERS IN WYOMING
Black Bear 8170 29.2 32.2 91 32.9 31.9 103
Canyon 7870 9.5 -M * 12.2 -M *
Madison Plateau 7750 17.6 19.2 92 20.6 21.2 97
West Yellowstone 6700 8.0 9.6 83 12.3 12.4 99
Whiskey Creek 6800 11.7 13.8 85 17.4 16.9 103
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Basin Index (%) 89 101
YELLOWSTONE HEADWATERS IN WYOMING
Beartooth Lake 9360 13.3 18.8 71 12.9 17.4 74
Canyon 7870 9.5 -M * 12.2 -M *
Evening Star 9200 18.8 22.6 83 23.8 24.6 97
Fisher Creek 9100 19.2 27.7 69 21.4 27.2 79
Monument Peak 8850 12.3 17.4 71 15.2 18.0 84
Northeast Entrance 7350 5.1 9.4 54 8.8 11.4 77
Parker Peak 9400 17.5 18.4 95 19.1 17.2 111
Sylvan Lake 8420 14.4 16.8 86 20.2 19.2 105
Thumb Divide 7980 15.9 13.5 118 16.2 14.8 109
Two Ocean Plateau 9240 23.8 24.1 99 19.8 22.3 89
White Mill 8700 14.3 20.6 69 15.1 19.6 77
Wolverine 7650 9.3 10.5 89 12.3 10.7 115
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Basin Index (%) 82 91
WIND RIVER
Burroughs Creek 8750 10.7 -M * 10.8 -M *
Castle Creek 8400 6.0 6.9 87 7.1 7.4 96
Cold Springs 9630 7.5 6.3 119 10.3 7.4 139
Deer Park 9700 13.7 11.0 125 15.8 14.1 112
Hobbs Park 10100 13.3 11.2 119 13.7 10.0 137
Kirwin 9550 11.5 9.2 125 14.0 9.8 143
Little Warm 9370 9.0 8.4 107 11.8 10.0 118
South Pass 9040 11.7 12.2 96 13.4 12.6 106
St. Lawrence Alt 8620 4.6 -M * 8.1 -M *
Togwotee Pass 9580 17.5 20.3 86 17.2 21.4 80
Townsend Creek 8700 7.2 7.5 96 10.6 8.5 125
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Basin Index (%) 105 113
BIGHORN BASIN
Bald Mtn. 9380 10.9 15.9 69 10.6 13.4 79
Bear Trap Meadow 8200 3.4 5.4 63 6.0 6.6 91
Bone Springs Div 9350 10.2 13.6 75 10.0 12.7 79
Grave Springs 8550 3.3 7.0 47 5.6 7.6 74
Kirwin 9550 11.5 9.2 125 14.0 9.8 143
Marquette 8760 9.6 5.6 171 12.6 7.2 175
Middle Powder 7760 4.4 8.5 52 6.3 8.3 76
Owl Creek 8975 5.0 4.6 109 6.6 4.9 135
Powder River Pass 9480 5.3 9.2 58 8.7 10.2 85
Shell Creek 9580 10.0 12.4 81 10.7 11.2 96
Timber Creek 7950 7.2 4.2 171 11.0 6.0 183
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Basin Index (%) 85 104
SHOSHONE RIVER
Blackwater 9780 19.4 19.2 101 20.3 18.3 111
Evening Star 9200 18.8 22.6 83 23.8 24.6 97
Marquette 8760 9.6 5.6 171 12.6 7.2 175
Sylvan Lake 8420 14.4 16.8 86 20.2 19.2 105
Sylvan Road 7120 8.1 10.4 78 14.6 14.4 101
Younts Peak 8350 12.8 13.0 98 13.6 12.4 110
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Basin Index (%) 95 109
POWDER RIVER
Bear Trap Meadow 8200 3.4 5.4 63 6.0 6.6 91
Cloud Peak Reservoir 9860 9.8 12.2 80 11.4 10.8 106
Grave Springs 8550 3.3 7.0 47 5.6 7.6 74
Hansen Sawmill 8360 3.7 5.8 64 6.5 6.6 98
Middle Powder 7760 4.4 8.5 52 6.3 8.3 76
Powder River Pass 9480 5.3 9.2 58 8.7 10.2 85
Soldier Park 8720 3.2 5.7 56 8.1 7.5 108
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Basin Index (%) 62 91
TONGUE RIVER
Big Goose 7990 4.3 6.6 65 8.4 8.2 102
Bone Springs Div 9350 10.2 13.6 75 10.0 12.7 79
Burgess Junction 7880 5.9 9.0 66 9.4 9.6 98
Dome Lake 8880 -M 9.4 * 8.4 9.8 86
Little Goose 8870 6.1 7.9 77 9.3 9.6 97
Sucker Creek 8880 7.6 10.4 73 11.0 11.5 96
Tie Creek 6870 1.9 4.8 40 10.1 8.8 115
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Basin Index (%) 69 95
BELLE FOURCHE
Blind Park 6890 3.0 6.8 44 5.1 9.0 57
Cole Canyon 5910 -M 4.8 * 4.4 7.4 59
North Rapid Creek 6130 4.7 6.1 77 6.1 7.4 82
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Basin Index (%) 60 66
CHEYENNE RIVER BASIN
Blind Park 6890 3.0 6.8 44 5.1 9.0 57
North Rapid Creek 6130 4.7 6.1 77 6.1 7.4 82
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Basin Index (%) 60 68
UPPER N. PLATTE
Arapaho Ridge 10976 18.4 17.9 103 18.2 18.0 101
Blackhall Mtn 9839 29.0 23.5 123 29.9 23.2 129
Cinnabar Park 9707 14.7 17.8 83 17.2 20.5 84
Columbine 9167 23.8 20.4 117 22.3 20.2 110
Divide Peak 8730 17.2 16.5 104 20.3 18.0 113
Joe Wright 10158 15.7 18.0 87 19.6 21.7 90
Laprele Creek 8390 5.7 7.8 73 8.5 9.4 90
Med Bow 10512 30.9 -M * 28.0 -M *
Never Summer 10323 15.4 16.7 92 11.6 14.3 81
North French Creek 10153 22.4 22.8 98 22.3 22.0 101
Old Battle 9860 27.0 25.4 106 26.5 28.4 93
Rawah 9069 9.7 9.6 101 13.0 12.9 101
Sage Creek Basin 7850 11.5 11.9 97 12.7 10.9 117
Sand Lake 10098 23.0 22.0 105 22.0 19.7 112
South Brush Creek 8495 8.8 10.3 85 9.7 11.2 87
Tower 10620 35.8 37.5 95 33.2 33.4 99
Webber Springs 9260 20.4 18.2 112 21.5 21.0 102
Whiskey Park 9020 27.2 23.0 118 25.9 23.4 111
Willow Creek Pass 9523 11.9 10.8 110 12.6 11.1 114
Zirkel 9338 23.1 25.2 92 24.8 26.4 94
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Basin Index (%) 102 102
SWEETWATER
Deer Park 9700 13.7 11.0 125 15.8 14.1 112
Larsen Creek 9000 7.2 10.0 72 10.9 11.1 98
South Pass 9040 11.7 12.2 96 13.4 12.6 106
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Basin Index (%) 98 106
LOWER N. PLATTE
Casper Mtn. 7920 6.2 10.7 58 10.9 10.8 101
Laprele Creek 8390 5.7 7.8 73 8.5 9.4 90
Reno Hill 8430 6.9 11.2 62 10.8 11.6 93
Windy Peak 7915 6.2 6.6 94 7.6 7.8 97
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Basin Index (%) 69 95
LARAMIE RIVER
Brooklyn Lake 10250 19.9 17.3 115 20.3 17.9 113
Cinnabar Park 9707 14.7 17.8 83 17.2 20.5 84
Crow Creek 8335 3.3 6.4 52 7.3 8.2 89
Deadman Hill 10239 14.5 13.9 104 13.8 14.0 99
Rawah 9069 9.7 9.6 101 13.0 12.9 101
Roach 9740 10.9 12.8 85 13.1 15.4 85
Windy Peak 7915 6.2 6.6 94 7.6 7.8 97
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Basin Index (%) 94 95
S. PLATTE
Crow Creek 8335 3.3 6.4 52 7.3 8.2 89
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Basin Index (%) 52 89
LITTLE SNAKE RIVER
Battle Mountain 7498 11.0 10.6 104 15.9 12.7 125
Divide Peak 8730 17.2 16.5 104 20.3 18.0 113
Elk River 8739 16.9 16.6 102 16.8 16.0 105
Elkhead Divide 8800 20.3 -M * 20.7 -M *
Little Snake River 8928 25.8 22.9 113 28.8 27.4 105
Old Battle 9860 27.0 25.4 106 26.5 28.4 93
Sage Creek Basin 7850 11.5 11.9 97 12.7 10.9 117
Sandstone RS 8152 16.6 11.4 146 15.3 15.5 99
Whiskey Park 9020 27.2 23.0 118 25.9 23.4 111
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Basin Index (%) 111 107
UPPER GREEN RIVER
Big Sandy Opening 9080 9.9 11.0 90 10.7 10.6 101
Blind Bull Sum 8650 20.9 20.6 101 14.8 15.8 94
East Rim Divide 7930 8.4 9.6 88 9.6 9.8 98
Elkhart Park G.S. 9400 8.6 10.4 83 9.8 10.8 91
Gros Ventre Summit 8750 10.2 10.6 96 11.8 10.2 116
Gunsight Pass 9820 11.3 11.0 103 12.8 11.7 109
Indian Creek 9425 20.2 19.6 103 17.4 17.0 102
Kendall R.S. 7740 8.9 10.8 82 11.6 11.6 100
Larsen Creek 9000 7.2 10.0 72 10.9 11.1 98
Loomis Park 8240 11.7 13.4 87 13.1 14.4 91
New Fork Lake 8340 7.9 9.2 86 -M 9.2 *
Pocket Creek 9360 -M -M * -M -M *
Snider Basin 8060 8.7 11.4 76 10.9 12.0 91
Spring Creek Divide 9000 -M 20.6 * -M 20.0 *
Triple Peak 8500 21.0 20.8 101 21.8 21.9 100
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Basin Index (%) 92 99
LOWER GREEN RIVER
Blacks Fork Jct 8869 10.3 7.3 141 12.6 10.0 126
Buck Pasture 9632 13.4 -M * 13.8 -M *
EF Blacks Fork GS 9360 7.6 9.9 77 8.8 9.3 95
Hams Fork 7840 -M 9.8 * 9.8 9.2 107
Henrys Fork 10182 -M -M * 11.7 -M *
Hewinta 9500 10.9 8.6 127 13.2 11.0 120
Hickerson Park 9122 8.0 6.6 121 10.7 8.6 124
Hole-in-Rock 9168 7.0 6.1 115 8.4 8.1 104
Indian Creek 9425 20.2 19.6 103 17.4 17.0 102
Kelley R.S. 8180 14.6 12.6 116 15.4 14.0 110
Spirit Lk 10235 11.4 9.9 115 15.0 13.6 110
Steel Creek Park 10158 13.4 12.4 108 15.7 13.0 121
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Basin Index (%) 111 112
UPPER BEAR RIVER
Bear River RS 8777 10.5 8.0 131 12.6 9.6 131
Bug Lake 7987 21.3 15.9 134 20.6 15.0 137
Burts Miller Ranch 8000 8.3 5.7 146 11.2 6.1 184
Chalk Creek #1 9171 20.0 19.0 105 21.0 18.8 112
Giveout 6930 10.0 8.5 118 11.4 10.2 112
Hayden Fork 9130 16.1 12.8 126 19.9 16.9 118
Kelley R.S. 8180 14.6 12.6 116 15.4 14.0 110
Lily Lake 9133 12.2 10.8 113 13.9 12.9 108
Monte Cristo 8932 26.0 22.7 115 25.2 21.2 119
Salt River Summit 7640 13.9 11.4 122 13.2 13.1 101
Spring Creek Divide 9000 -M 20.6 * -M 20.0 *
Trial Lake 9992 22.4 18.6 120 22.2 18.4 121
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Basin Index (%) 120 119
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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.