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 28 , 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 15.5 16.2 96 19.6 19.4 101
Blind Bull Sum 8650 22.7 23.4 97 15.6 17.4 90
Cottonwood Creek 7670 20.3 20.9 97 24.5 24.1 102
East Rim Divide 7930 8.3 10.5 79 10.0 10.6 94
Grand Targhee 9260 36.7 39.3 93 25.7 29.0 89
Granite Creek 6770 14.1 15.3 92 15.1 17.2 88
Grassy Lake 7265 27.8 31.2 89 33.3 33.0 101
Gros Ventre Summit 8750 11.0 12.2 90 12.5 11.7 107
Gunsight Pass 9820 11.9 12.4 96 13.4 13.2 102
Lewis Lake Divide 7850 30.3 29.4 103 33.5 31.4 107
Loomis Park 8240 11.3 15.0 75 13.9 16.4 85
Phillips Bench 8200 23.5 25.4 93 26.4 26.0 102
Salt River Summit 7640 15.1 12.8 118 14.1 14.8 95
Snake River Station 6920 15.9 16.6 96 22.3 20.9 107
Somsen Ranch 6800 17.1 11.9 144 20.5 15.4 133
Spring Creek Divide 9000 -M 23.8 * -M 22.6 *
Thumb Divide 7980 16.0 15.6 103 17.0 16.6 102
Togwotee Pass 9580 18.7 22.7 82 18.3 23.6 78
Triple Peak 8500 22.4 22.3 100 22.5 24.4 92
Two Ocean Plateau 9240 26.2 27.6 95 25.0 24.8 101
Willow Creek 8080 32.4 28.6 113 32.7 31.0 105
Younts Peak 8350 14.0 13.9 101 14.7 13.8 107
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Basin Index (%) 97 99
MADISON HEADWATERS IN WYOMING
Black Bear 8170 31.3 36.4 86 35.5 34.4 103
Canyon 7870 10.3 -M * 12.9 -M *
Madison Plateau 7750 19.0 21.4 89 21.9 22.8 96
West Yellowstone 6700 8.4 10.4 81 12.9 13.2 98
Whiskey Creek 6800 12.8 14.4 89 18.8 18.4 102
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Basin Index (%) 87 100
YELLOWSTONE HEADWATERS IN WYOMING
Beartooth Lake 9360 14.4 20.8 69 14.0 19.0 74
Canyon 7870 10.3 -M * 12.9 -M *
Evening Star 9200 20.1 24.2 83 25.4 26.6 95
Fisher Creek 9100 21.0 30.8 68 23.6 31.0 76
Monument Peak 8850 13.6 19.3 70 16.6 20.1 83
Northeast Entrance 7350 5.5 9.6 57 9.6 12.4 77
Parker Peak 9400 19.3 20.0 96 20.8 19.1 109
Sylvan Lake 8420 15.3 18.8 81 21.7 21.4 101
Thumb Divide 7980 16.0 15.6 103 17.0 16.6 102
Two Ocean Plateau 9240 26.2 27.6 95 25.0 24.8 101
White Mill 8700 15.7 23.0 68 16.5 21.8 76
Wolverine 7650 9.3 10.9 85 13.0 11.7 111
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Basin Index (%) 80 91
WIND RIVER
Burroughs Creek 8750 11.4 -M * 11.3 -M *
Castle Creek 8400 6.5 6.8 96 7.8 8.0 98
Cold Springs 9630 8.1 7.0 116 10.9 8.2 133
Deer Park 9700 16.4 13.6 121 18.7 16.4 114
Hobbs Park 10100 15.6 13.0 120 16.1 11.6 139
Kirwin 9550 13.1 10.0 131 15.4 10.8 143
Little Warm 9370 9.6 9.9 97 12.4 11.3 110
South Pass 9040 14.2 14.2 100 16.2 14.4 112
St. Lawrence Alt 8620 6.0 -M * 9.6 -M *
Togwotee Pass 9580 18.7 22.7 82 18.3 23.6 78
Townsend Creek 8700 9.6 8.4 114 13.2 9.7 136
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Basin Index (%) 106 113
BIGHORN BASIN
Bald Mtn. 9380 12.0 17.2 70 11.4 15.2 75
Bear Trap Meadow 8200 3.9 6.1 64 7.1 7.4 96
Bone Springs Div 9350 11.8 15.4 77 11.2 14.1 79
Grave Springs 8550 3.9 7.9 49 6.3 8.8 72
Kirwin 9550 13.1 10.0 131 15.4 10.8 143
Marquette 8760 11.6 6.6 176 14.4 8.1 178
Middle Powder 7760 5.2 9.9 53 6.9 9.2 75
Owl Creek 8975 5.2 5.1 102 6.8 5.4 126
Powder River Pass 9480 -M 10.4 * 9.6 11.7 82
Shell Creek 9580 10.8 14.2 76 11.5 12.9 89
Timber Creek 7950 7.7 3.9 197 11.8 7.0 169
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Basin Index (%) 88 102
SHOSHONE RIVER
Blackwater 9780 21.4 21.1 101 22.3 20.6 108
Evening Star 9200 20.1 24.2 83 25.4 26.6 95
Marquette 8760 11.6 6.6 176 14.4 8.1 178
Sylvan Lake 8420 15.3 18.8 81 21.7 21.4 101
Sylvan Road 7120 7.5 11.0 68 14.8 15.3 97
Younts Peak 8350 14.0 13.9 101 14.7 13.8 107
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Basin Index (%) 94 107
POWDER RIVER
Bear Trap Meadow 8200 3.9 6.1 64 7.1 7.4 96
Cloud Peak Reservoir 9860 10.9 13.6 80 12.6 12.0 105
Grave Springs 8550 3.9 7.9 49 6.3 8.8 72
Hansen Sawmill 8360 4.7 6.0 78 7.8 7.8 100
Middle Powder 7760 5.2 9.9 53 6.9 9.2 75
Powder River Pass 9480 -M 10.4 * 9.6 11.7 82
Soldier Park 8720 3.7 6.6 56 8.7 8.4 104
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Basin Index (%) 64 90
TONGUE RIVER
Big Goose 7990 5.5 7.7 71 9.5 9.0 106
Bone Springs Div 9350 11.8 15.4 77 11.2 14.1 79
Burgess Junction 7880 6.9 9.8 70 10.4 10.6 98
Dome Lake 8880 -M 10.7 * 9.8 11.6 84
Little Goose 8870 7.4 9.2 80 10.8 11.0 98
Sucker Creek 8880 8.8 11.1 79 12.5 12.4 101
Tie Creek 6870 2.2 4.6 48 11.0 9.6 115
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Basin Index (%) 74 96
BELLE FOURCHE
Blind Park 6890 .2 7.0 3 5.8 10.4 56
Cole Canyon 5910 2.0 5.4 37 5.1 8.1 63
North Rapid Creek 6130 5.4 6.6 82 6.6 8.3 80
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Basin Index (%) 40 65
CHEYENNE RIVER BASIN
Blind Park 6890 .2 7.0 3 5.8 10.4 56
North Rapid Creek 6130 5.4 6.6 82 6.6 8.3 80
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Basin Index (%) 41 66
UPPER N. PLATTE
Arapaho Ridge 10976 20.1 20.4 99 20.0 20.4 98
Blackhall Mtn 9839 30.1 28.8 105 32.2 27.6 117
Cinnabar Park 9707 19.3 19.4 99 21.7 22.3 97
Columbine 9167 26.2 21.5 122 24.4 22.6 108
Divide Peak 8730 20.0 18.4 109 22.7 20.6 110
Joe Wright 10158 17.9 19.4 92 22.0 24.4 90
Laprele Creek 8390 6.8 9.2 74 10.0 10.8 93
Med Bow 10512 35.3 -M * 30.5 -M *
Never Summer 10323 17.4 18.9 92 13.4 16.0 84
North French Creek 10153 24.7 26.4 94 24.9 24.3 102
Old Battle 9860 30.2 28.2 107 30.5 31.1 98
Rawah 9069 11.8 10.4 113 15.1 14.4 105
Sage Creek Basin 7850 15.2 12.5 122 14.3 12.2 117
Sand Lake 10098 27.7 25.2 110 26.6 23.0 116
South Brush Creek 8495 9.7 11.4 85 11.1 12.7 87
Tower 10620 39.2 40.6 97 35.7 37.6 95
Webber Springs 9260 22.2 21.1 105 23.9 24.0 100
Whiskey Park 9020 30.0 25.3 119 28.1 26.0 108
Willow Creek Pass 9523 13.2 12.2 108 13.9 12.8 109
Zirkel 9338 24.8 27.2 91 27.0 29.4 92
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Basin Index (%) 103 101
SWEETWATER
Deer Park 9700 16.4 13.6 121 18.7 16.4 114
Larsen Creek 9000 8.1 10.6 76 12.7 12.4 102
South Pass 9040 14.2 14.2 100 16.2 14.4 112
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Basin Index (%) 101 110
LOWER N. PLATTE
Casper Mtn. 7920 8.9 12.4 72 12.8 12.6 102
Laprele Creek 8390 6.8 9.2 74 10.0 10.8 93
Reno Hill 8430 8.7 12.8 68 12.4 13.0 95
Windy Peak 7915 7.8 7.8 100 9.2 9.2 100
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Basin Index (%) 76 97
LARAMIE RIVER
Brooklyn Lake 10250 23.3 20.2 115 23.6 20.4 116
Cinnabar Park 9707 19.3 19.4 99 21.7 22.3 97
Crow Creek 8335 5.4 5.7 95 9.8 9.9 99
Deadman Hill 10239 18.2 15.5 117 17.1 16.5 104
Rawah 9069 11.8 10.4 113 15.1 14.4 105
Roach 9740 14.1 14.8 95 16.4 17.3 95
Windy Peak 7915 7.8 7.8 100 9.2 9.2 100
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Basin Index (%) 107 103
S. PLATTE
Crow Creek 8335 5.4 5.7 95 9.8 9.9 99
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Basin Index (%) 95 99
LITTLE SNAKE RIVER
Battle Mountain 7498 11.8 11.0 107 17.9 14.1 127
Divide Peak 8730 20.0 18.4 109 22.7 20.6 110
Elk River 8739 17.6 17.5 101 18.4 17.6 105
Elkhead Divide 8800 21.7 -M * 22.4 -M *
Little Snake River 8928 27.6 25.0 110 31.0 30.2 103
Old Battle 9860 30.2 28.2 107 30.5 31.1 98
Sage Creek Basin 7850 15.2 12.5 122 14.3 12.2 117
Sandstone RS 8152 17.8 12.4 144 17.0 16.9 101
Whiskey Park 9020 30.0 25.3 119 28.1 26.0 108
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Basin Index (%) 113 107
UPPER GREEN RIVER
Big Sandy Opening 9080 11.5 12.7 91 12.5 12.0 104
Blind Bull Sum 8650 22.7 23.4 97 15.6 17.4 90
East Rim Divide 7930 8.3 10.5 79 10.0 10.6 94
Elkhart Park G.S. 9400 9.6 12.0 80 10.5 12.1 87
Gros Ventre Summit 8750 11.0 12.2 90 12.5 11.7 107
Gunsight Pass 9820 11.9 12.4 96 13.4 13.2 102
Indian Creek 9425 21.7 22.2 98 18.5 18.4 101
Kendall R.S. 7740 8.7 11.2 78 12.1 12.7 95
Larsen Creek 9000 8.1 10.6 76 12.7 12.4 102
Loomis Park 8240 11.3 15.0 75 13.9 16.4 85
New Fork Lake 8340 8.0 10.2 78 -M 10.0 *
Pocket Creek 9360 -M -M * -M -M *
Snider Basin 8060 9.1 12.2 75 11.6 13.4 87
Spring Creek Divide 9000 -M 23.8 * -M 22.6 *
Triple Peak 8500 22.4 22.3 100 22.5 24.4 92
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Basin Index (%) 88 95
LOWER GREEN RIVER
Blacks Fork Jct 8869 11.2 8.4 133 13.5 11.4 118
Buck Pasture 9632 14.9 -M * 15.3 -M *
EF Blacks Fork GS 9360 11.4 11.1 103 9.7 10.1 96
Hams Fork 7840 -M 10.6 * 10.7 10.4 103
Henrys Fork 10182 -M -M * 12.9 -M *
Hewinta 9500 12.4 9.8 127 14.4 12.2 118
Hickerson Park 9122 11.0 7.3 151 13.4 9.3 144
Hole-in-Rock 9168 8.9 7.0 127 10.4 9.0 116
Indian Creek 9425 21.7 22.2 98 18.5 18.4 101
Kelley R.S. 8180 15.9 14.2 112 16.4 15.2 108
Spirit Lk 10235 14.4 11.8 122 17.8 15.6 114
Steel Creek Park 10158 14.8 13.6 109 17.1 15.0 114
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Basin Index (%) 115 112
UPPER BEAR RIVER
Bear River RS 8777 12.0 8.9 135 13.9 11.1 125
Bug Lake 7987 21.7 17.8 122 21.8 16.8 130
Burts Miller Ranch 8000 8.8 5.6 157 12.3 7.1 173
Chalk Creek #1 9171 22.6 22.0 103 23.5 21.6 109
Giveout 6930 10.5 8.0 131 12.2 11.2 109
Hayden Fork 9130 18.0 14.3 126 21.8 19.3 113
Kelley R.S. 8180 15.9 14.2 112 16.4 15.2 108
Lily Lake 9133 13.6 12.0 113 15.2 14.2 107
Monte Cristo 8932 27.7 25.3 109 26.4 24.3 109
Salt River Summit 7640 15.1 12.8 118 14.1 14.8 95
Spring Creek Divide 9000 -M 23.8 * -M 22.6 *
Trial Lake 9992 26.0 20.9 124 24.7 21.0 118
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Basin Index (%) 119 115
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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.
