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 TUESDAY: MARCH 19 , 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 16.1 94 18.9 18.3 103
Blind Bull Sum 8650 22.0 22.1 100 15.3 16.5 93
Cottonwood Creek 7670 19.9 19.8 101 23.7 22.6 105
East Rim Divide 7930 8.6 10.1 85 9.8 10.2 96
Grand Targhee 9260 34.4 37.0 93 25.0 27.6 91
Granite Creek 6770 13.9 15.6 89 14.7 16.9 87
Grassy Lake 7265 26.4 29.5 89 32.0 31.8 101
Gros Ventre Summit 8750 10.7 11.3 95 11.9 11.0 108
Gunsight Pass 9820 11.6 12.1 96 12.9 12.5 103
Lewis Lake Divide 7850 29.1 28.2 103 32.8 29.5 111
Loomis Park 8240 11.6 14.1 82 13.3 15.5 86
Phillips Bench 8200 23.0 23.4 98 25.5 24.0 106
Salt River Summit 7640 14.6 12.5 117 13.8 13.7 101
Snake River Station 6920 15.5 16.2 96 21.6 19.6 110
Somsen Ranch 6800 16.6 11.6 143 19.7 14.6 135
Spring Creek Divide 9000 -M 22.4 * -M 21.7 *
Thumb Divide 7980 15.7 14.4 109 16.5 15.4 107
Togwotee Pass 9580 17.7 21.2 83 17.3 22.6 77
Triple Peak 8500 21.8 21.8 100 22.4 23.2 97
Two Ocean Plateau 9240 24.6 26.0 95 23.6 23.5 100
Willow Creek 8080 31.6 26.8 118 31.1 29.4 106
Younts Peak 8350 13.0 13.4 97 13.8 13.0 106
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Basin Index (%) 99 101
MADISON HEADWATERS IN WYOMING
Black Bear 8170 30.8 35.6 87 34.4 33.2 104
Canyon 7870 9.7 -M * 12.5 -M *
Madison Plateau 7750 18.6 20.3 92 21.4 22.0 97
West Yellowstone 6700 8.2 10.3 80 12.5 13.0 96
Whiskey Creek 6800 12.2 14.6 84 18.1 17.6 103
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Basin Index (%) 86 101
YELLOWSTONE HEADWATERS IN WYOMING
Beartooth Lake 9360 13.7 19.8 69 13.3 18.2 73
Canyon 7870 9.7 -M * 12.5 -M *
Evening Star 9200 19.2 23.6 81 24.4 25.6 95
Fisher Creek 9100 20.0 28.7 70 22.5 28.8 78
Monument Peak 8850 12.9 18.6 69 15.9 19.0 84
Northeast Entrance 7350 5.2 9.8 53 9.0 11.9 76
Parker Peak 9400 18.3 19.0 96 19.8 18.2 109
Sylvan Lake 8420 14.2 18.2 78 20.6 20.4 101
Thumb Divide 7980 15.7 14.4 109 16.5 15.4 107
Two Ocean Plateau 9240 24.6 26.0 95 23.6 23.5 100
White Mill 8700 14.9 22.0 68 15.7 20.8 75
Wolverine 7650 9.3 10.6 88 12.4 11.0 113
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Basin Index (%) 80 91
WIND RIVER
Burroughs Creek 8750 11.3 -M * 10.7 -M *
Castle Creek 8400 6.2 6.9 90 7.2 7.8 92
Cold Springs 9630 8.0 6.4 125 10.7 7.8 137
Deer Park 9700 15.5 12.0 129 17.8 15.4 116
Hobbs Park 10100 15.4 12.0 128 15.7 10.9 144
Kirwin 9550 12.3 9.4 131 14.7 10.3 143
Little Warm 9370 9.2 8.9 103 11.9 10.8 110
South Pass 9040 13.6 13.0 105 15.5 13.2 117
St. Lawrence Alt 8620 6.0 -M * 9.4 -M *
Togwotee Pass 9580 17.7 21.2 83 17.3 22.6 77
Townsend Creek 8700 9.3 8.0 116 12.8 8.9 144
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Basin Index (%) 110 115
BIGHORN BASIN
Bald Mtn. 9380 11.3 16.5 68 10.8 14.0 77
Bear Trap Meadow 8200 3.8 5.9 64 6.6 7.2 92
Bone Springs Div 9350 10.7 14.2 75 10.4 13.2 79
Grave Springs 8550 3.8 7.7 49 6.1 8.4 73
Kirwin 9550 12.3 9.4 131 14.7 10.3 143
Marquette 8760 10.3 6.2 166 13.3 7.7 173
Middle Powder 7760 -M 9.0 * 6.6 8.8 75
Owl Creek 8975 5.2 4.8 108 6.6 5.2 127
Powder River Pass 9480 5.6 9.8 57 9.1 11.0 83
Shell Creek 9580 10.3 13.1 79 11.1 11.8 94
Timber Creek 7950 7.2 4.1 176 11.3 6.6 171
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Basin Index (%) 88 102
SHOSHONE RIVER
Blackwater 9780 20.0 20.4 98 21.1 19.4 109
Evening Star 9200 19.2 23.6 81 24.4 25.6 95
Marquette 8760 10.3 6.2 166 13.3 7.7 173
Sylvan Lake 8420 14.2 18.2 78 20.6 20.4 101
Sylvan Road 7120 7.6 11.0 69 14.4 14.9 97
Younts Peak 8350 13.0 13.4 97 13.8 13.0 106
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Basin Index (%) 91 107
POWDER RIVER
Bear Trap Meadow 8200 3.8 5.9 64 6.6 7.2 92
Cloud Peak Reservoir 9860 10.7 13.0 82 12.3 11.4 108
Grave Springs 8550 3.8 7.7 49 6.1 8.4 73
Hansen Sawmill 8360 4.6 5.8 79 7.5 7.4 101
Middle Powder 7760 -M 9.0 * 6.6 8.8 75
Powder River Pass 9480 5.6 9.8 57 9.1 11.0 83
Soldier Park 8720 3.6 5.9 61 8.5 8.0 106
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Basin Index (%) 67 91
TONGUE RIVER
Big Goose 7990 5.3 7.3 73 9.1 8.6 106
Bone Springs Div 9350 10.7 14.2 75 10.4 13.2 79
Burgess Junction 7880 6.2 9.4 66 9.7 10.2 95
Dome Lake 8880 -M 10.0 * 9.3 10.8 86
Little Goose 8870 7.2 8.3 87 10.5 9.9 106
Sucker Creek 8880 8.5 10.8 79 11.9 12.0 99
Tie Creek 6870 -M 4.7 * 10.5 9.2 114
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Basin Index (%) 76 97
BELLE FOURCHE
Blind Park 6890 2.0 7.1 28 -M 9.8 *
Cole Canyon 5910 2.4 5.0 48 4.5 7.6 59
North Rapid Creek 6130 4.8 6.4 75 6.0 7.8 77
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Basin Index (%) 50 68
CHEYENNE RIVER BASIN
Blind Park 6890 2.0 7.1 28 -M 9.8 *
North Rapid Creek 6130 4.8 6.4 75 6.0 7.8 77
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Basin Index (%) 50 77
UPPER N. PLATTE
Arapaho Ridge 10976 -M 19.2 * -M 19.1 *
Blackhall Mtn 9839 30.3 26.7 113 31.0 26.0 119
Cinnabar Park 9707 18.6 18.1 103 20.7 21.0 99
Columbine 9167 25.0 21.2 118 23.2 21.6 107
Divide Peak 8730 19.1 17.4 110 22.1 18.9 117
Joe Wright 10158 17.7 18.3 97 21.5 23.0 93
Laprele Creek 8390 6.8 8.8 77 9.9 10.0 99
Med Bow 10512 33.6 -M * 29.5 -M *
Never Summer 10323 16.3 17.6 93 12.5 14.5 86
North French Creek 10153 24.7 24.3 102 23.9 23.1 103
Old Battle 9860 28.6 26.1 110 29.3 29.3 100
Rawah 9069 11.3 9.8 115 14.4 13.5 107
Sage Creek Basin 7850 15.4 11.8 131 14.0 11.6 121
Sand Lake 10098 26.7 23.1 116 25.8 21.6 119
South Brush Creek 8495 9.9 11.0 90 10.8 11.8 92
Tower 10620 37.2 38.8 96 34.5 35.8 96
Webber Springs 9260 21.3 19.7 108 22.9 21.9 105
Whiskey Park 9020 29.6 24.4 121 27.1 24.4 111
Willow Creek Pass 9523 12.5 11.4 110 13.2 12.0 110
Zirkel 9338 24.6 26.2 94 25.7 27.6 93
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Basin Index (%) 106 104
SWEETWATER
Deer Park 9700 15.5 12.0 129 17.8 15.4 116
Larsen Creek 9000 7.9 10.4 76 11.8 11.4 104
South Pass 9040 13.6 13.0 105 15.5 13.2 117
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Basin Index (%) 105 113
LOWER N. PLATTE
Casper Mtn. 7920 8.8 11.8 75 12.7 11.4 111
Laprele Creek 8390 6.8 8.8 77 9.9 10.0 99
Reno Hill 8430 8.7 11.7 74 12.4 12.0 103
Windy Peak 7915 7.9 6.8 116 9.2 8.4 110
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Basin Index (%) 82 106
LARAMIE RIVER
Brooklyn Lake 10250 22.6 18.4 123 23.0 18.7 123
Cinnabar Park 9707 18.6 18.1 103 20.7 21.0 99
Crow Creek 8335 4.9 6.5 75 9.0 9.3 97
Deadman Hill 10239 17.6 14.8 119 16.4 15.2 108
Rawah 9069 11.3 9.8 115 14.4 13.5 107
Roach 9740 13.0 13.7 95 15.2 16.1 94
Windy Peak 7915 7.9 6.8 116 9.2 8.4 110
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Basin Index (%) 109 106
S. PLATTE
Crow Creek 8335 4.9 6.5 75 9.0 9.3 97
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Basin Index (%) 75 97
LITTLE SNAKE RIVER
Battle Mountain 7498 11.9 11.0 108 17.2 13.2 130
Divide Peak 8730 19.1 17.4 110 22.1 18.9 117
Elk River 8739 17.9 16.6 108 17.3 17.0 102
Elkhead Divide 8800 21.1 -M * 21.5 -M *
Little Snake River 8928 27.1 24.0 113 30.0 28.4 106
Old Battle 9860 28.6 26.1 110 29.3 29.3 100
Sage Creek Basin 7850 15.4 11.8 131 14.0 11.6 121
Sandstone RS 8152 18.0 11.5 157 16.4 16.1 102
Whiskey Park 9020 29.6 24.4 121 27.1 24.4 111
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Basin Index (%) 117 109
UPPER GREEN RIVER
Big Sandy Opening 9080 10.5 11.8 89 11.4 11.2 102
Blind Bull Sum 8650 22.0 22.1 100 15.3 16.5 93
East Rim Divide 7930 8.6 10.1 85 9.8 10.2 96
Elkhart Park G.S. 9400 9.0 11.1 81 9.9 11.2 88
Gros Ventre Summit 8750 10.7 11.3 95 11.9 11.0 108
Gunsight Pass 9820 11.6 12.1 96 12.9 12.5 103
Indian Creek 9425 20.7 20.7 100 18.0 17.4 103
Kendall R.S. 7740 9.1 11.2 81 11.7 12.2 96
Larsen Creek 9000 7.9 10.4 76 11.8 11.4 104
Loomis Park 8240 11.6 14.1 82 13.3 15.5 86
New Fork Lake 8340 7.8 9.6 81 -M 9.5 *
Pocket Creek 9360 -M -M * -M -M *
Snider Basin 8060 9.0 12.0 75 11.1 12.7 87
Spring Creek Divide 9000 -M 22.4 * -M 21.7 *
Triple Peak 8500 21.8 21.8 100 22.4 23.2 97
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Basin Index (%) 90 97
LOWER GREEN RIVER
Blacks Fork Jct 8869 11.2 7.8 144 13.2 10.5 126
Buck Pasture 9632 14.4 -M * 14.4 -M *
EF Blacks Fork GS 9360 8.2 10.6 77 9.4 9.8 96
Hams Fork 7840 -M 10.2 * 10.3 9.5 108
Henrys Fork 10182 -M -M * 12.2 -M *
Hewinta 9500 12.2 8.9 137 14.1 11.8 119
Hickerson Park 9122 10.8 7.0 154 13.0 8.8 148
Hole-in-Rock 9168 8.6 6.6 130 10.0 8.6 116
Indian Creek 9425 20.7 20.7 100 18.0 17.4 103
Kelley R.S. 8180 15.2 13.2 115 15.7 14.5 108
Spirit Lk 10235 13.6 10.8 126 17.0 14.4 118
Steel Creek Park 10158 14.3 12.8 112 16.4 13.8 119
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Basin Index (%) 117 115
UPPER BEAR RIVER
Bear River RS 8777 11.7 8.4 139 13.2 10.1 131
Bug Lake 7987 21.9 16.6 132 21.3 15.6 137
Burts Miller Ranch 8000 9.0 4.9 184 11.8 6.6 179
Chalk Creek #1 9171 21.1 20.0 106 22.1 20.6 107
Giveout 6930 10.9 7.8 140 11.9 10.4 114
Hayden Fork 9130 17.0 13.3 128 20.4 17.6 116
Kelley R.S. 8180 15.2 13.2 115 15.7 14.5 108
Lily Lake 9133 12.9 11.2 115 14.5 13.6 107
Monte Cristo 8932 27.0 24.0 112 25.6 21.9 117
Salt River Summit 7640 14.6 12.5 117 13.8 13.7 101
Spring Creek Divide 9000 -M 22.4 * -M 21.7 *
Trial Lake 9992 23.6 19.6 120 23.0 19.8 116
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Basin Index (%) 122 118
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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.