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: APRIL 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 14.4 14.6 99 20.8 20.3 102
Blind Bull Sum 8650 24.5 24.5 100 16.8 17.8 94
Cottonwood Creek 7670 20.6 21.0 98 26.4 25.7 103
East Rim Divide 7930 7.5 10.0 75 11.3 11.4 99
Grand Targhee 9260 40.2 45.4 89 -M 33.1 *
Granite Creek 6770 14.6 13.8 106 16.7 18.7 89
Grassy Lake 7265 28.3 32.3 88 35.2 35.7 99
Gros Ventre Summit 8750 11.8 12.8 92 13.8 12.4 111
Gunsight Pass 9820 13.3 12.8 104 15.3 14.4 106
Lewis Lake Divide 7850 31.6 32.0 99 35.8 33.4 107
Loomis Park 8240 11.3 14.8 76 15.4 17.0 91
Phillips Bench 8200 24.7 26.2 94 28.4 26.8 106
Salt River Summit 7640 15.0 12.0 125 15.4 16.4 94
Snake River Station 6920 14.3 15.2 94 23.2 22.8 102
Somsen Ranch 6800 15.8 9.8 161 21.9 16.8 130
Spring Creek Divide 9000 24.4 25.1 97 22.5 23.6 95
Thumb Divide 7980 17.1 15.8 108 18.5 18.3 101
Togwotee Pass 9580 20.2 23.9 85 20.4 25.0 82
Triple Peak 8500 23.2 22.4 104 23.9 25.6 93
Two Ocean Plateau 9240 28.5 30.7 93 26.8 27.4 98
Willow Creek 8080 34.7 28.6 121 35.4 34.1 104
Younts Peak 8350 14.8 14.4 103 15.6 15.2 103
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Basin Index (%) 98 100
MADISON HEADWATERS IN WYOMING
Black Bear 8170 32.8 38.6 85 38.5 37.6 102
Canyon 7870 10.8 -M * 14.0 -M *
Madison Plateau 7750 20.5 23.2 88 23.9 25.2 95
West Yellowstone 6700 7.4 8.2 90 13.8 14.0 99
Whiskey Creek 6800 13.7 15.2 90 20.2 20.8 97
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Basin Index (%) 87 99
YELLOWSTONE HEADWATERS IN WYOMING
Beartooth Lake 9360 15.8 22.2 71 15.3 20.4 75
Canyon 7870 10.8 -M * 14.0 -M *
Evening Star 9200 21.1 25.4 83 26.9 28.6 94
Fisher Creek 9100 22.9 34.0 67 26.2 34.0 77
Monument Peak 8850 14.3 21.2 67 18.5 22.4 83
Northeast Entrance 7350 5.1 8.2 62 10.7 13.3 80
Parker Peak 9400 21.0 21.9 96 22.6 20.4 111
Sylvan Lake 8420 15.8 20.0 79 23.5 23.6 100
Thumb Divide 7980 17.1 15.8 108 18.5 18.3 101
Two Ocean Plateau 9240 28.5 30.7 93 26.8 27.4 98
White Mill 8700 17.5 24.9 70 18.4 23.4 79
Wolverine 7650 7.8 8.8 89 13.5 12.8 105
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Basin Index (%) 80 90
WIND RIVER
Burroughs Creek 8750 10.0 -M * 12.0 -M *
Castle Creek 8400 5.2 6.0 87 8.2 9.0 91
Cold Springs 9630 7.3 6.9 106 11.7 9.7 121
Deer Park 9700 18.1 15.2 119 21.3 18.7 114
Hobbs Park 10100 16.3 15.4 106 17.1 14.2 120
Kirwin 9550 13.1 11.2 117 16.0 12.4 129
Little Warm 9370 10.2 9.8 104 13.6 12.0 113
South Pass 9040 14.4 15.6 92 18.0 16.4 110
St. Lawrence Alt 8620 5.7 -M * 10.4 -M *
Togwotee Pass 9580 20.2 23.9 85 20.4 25.0 82
Townsend Creek 8700 9.8 9.9 99 14.4 12.5 115
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Basin Index (%) 101 108
BIGHORN BASIN
Bald Mtn. 9380 14.5 19.6 74 13.6 16.4 83
Bear Trap Meadow 8200 6.3 5.6 112 9.8 9.4 104
Bone Springs Div 9350 13.8 18.0 77 12.7 16.3 78
Grave Springs 8550 7.9 8.8 90 10.4 10.2 102
Kirwin 9550 13.1 11.2 117 16.0 12.4 129
Marquette 8760 12.0 7.6 158 15.5 10.0 155
Middle Powder 7760 11.6 11.4 102 10.8 10.2 106
Owl Creek 8975 4.6 5.4 85 7.8 6.6 118
Powder River Pass 9480 7.0 10.6 66 11.9 13.3 89
Shell Creek 9580 13.4 16.1 83 13.8 14.2 97
Timber Creek 7950 7.3 5.2 140 12.4 8.3 149
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Basin Index (%) 93 106
SHOSHONE RIVER
Blackwater 9780 22.8 24.0 95 24.0 22.6 106
Evening Star 9200 21.1 25.4 83 26.9 28.6 94
Marquette 8760 12.0 7.6 158 15.5 10.0 155
Sylvan Lake 8420 15.8 20.0 79 23.5 23.6 100
Sylvan Road 7120 4.2 10.2 41 15.4 16.5 93
Younts Peak 8350 14.8 14.4 103 15.6 15.2 103
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Basin Index (%) 89 104
POWDER RIVER
Bear Trap Meadow 8200 6.3 5.6 112 9.8 9.4 104
Cloud Peak Reservoir 9860 11.8 15.2 78 14.7 14.2 104
Grave Springs 8550 7.9 8.8 90 10.4 10.2 102
Hansen Sawmill 8360 5.5 6.2 89 9.5 8.8 108
Middle Powder 7760 11.6 11.4 102 10.8 10.2 106
Powder River Pass 9480 7.0 10.6 66 11.9 13.3 89
Soldier Park 8720 3.9 6.1 64 10.0 10.0 100
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Basin Index (%) 85 101
TONGUE RIVER
Big Goose 7990 6.7 9.0 74 11.2 10.6 106
Bone Springs Div 9350 13.8 18.0 77 12.7 16.3 78
Burgess Junction 7880 9.0 11.4 79 12.6 12.6 100
Dome Lake 8880 -M 11.8 * 12.0 13.6 88
Little Goose 8870 8.7 10.4 84 13.0 12.8 102
Sucker Creek 8880 10.6 12.5 85 15.3 14.8 103
Tie Creek 6870 1.5 4.4 34 12.8 11.4 112
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Basin Index (%) 77 97
BELLE FOURCHE
Blind Park 6890 .0 5.1 0 7.1 11.9 60
Cole Canyon 5910 1.6 3.7 43 7.6 9.6 79
North Rapid Creek 6130 4.2 5.8 72 8.8 9.5 93
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Basin Index (%) 40 76
CHEYENNE RIVER BASIN
Blind Park 6890 .0 5.1 0 7.1 11.9 60
North Rapid Creek 6130 4.2 5.8 72 8.8 9.5 93
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Basin Index (%) 39 74
UPPER N. PLATTE
Arapaho Ridge 10976 22.0 22.8 96 22.0 22.4 98
Blackhall Mtn 9839 32.1 30.6 105 35.3 30.4 116
Cinnabar Park 9707 20.2 20.8 97 23.4 24.0 98
Columbine 9167 26.1 22.0 119 26.6 25.9 103
Divide Peak 8730 21.8 20.0 109 24.8 21.8 114
Joe Wright 10158 19.8 21.6 92 23.9 26.2 91
Laprele Creek 8390 7.5 9.0 83 11.7 12.2 96
Med Bow 10512 39.7 -M * 34.1 -M *
Never Summer 10323 19.2 20.8 92 14.9 17.8 84
North French Creek 10153 27.0 31.2 87 27.6 28.0 99
Old Battle 9860 33.8 32.2 105 34.5 35.4 97
Rawah 9069 11.1 10.3 108 16.5 16.2 102
Sage Creek Basin 7850 12.9 11.2 115 15.6 13.3 117
Sand Lake 10098 30.6 29.4 104 29.2 26.0 112
South Brush Creek 8495 9.5 10.2 93 12.4 14.1 88
Tower 10620 42.2 45.0 94 40.7 40.8 100
Webber Springs 9260 23.4 21.6 108 26.8 25.9 103
Whiskey Park 9020 31.8 26.6 120 30.7 28.0 110
Willow Creek Pass 9523 14.3 14.0 102 15.0 14.0 107
Zirkel 9338 25.5 25.6 100 29.5 31.0 95
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Basin Index (%) 101 102
SWEETWATER
Deer Park 9700 18.1 15.2 119 21.3 18.7 114
Larsen Creek 9000 8.8 8.5 104 15.0 14.0 107
South Pass 9040 14.4 15.6 92 18.0 16.4 110
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Basin Index (%) 105 111
LOWER N. PLATTE
Casper Mtn. 7920 11.9 13.7 87 15.8 14.2 111
Laprele Creek 8390 7.5 9.0 83 11.7 12.2 96
Reno Hill 8430 10.8 14.4 75 15.2 16.2 94
Windy Peak 7915 8.5 7.4 115 10.7 10.5 102
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Basin Index (%) 87 101
LARAMIE RIVER
Brooklyn Lake 10250 24.0 22.6 106 25.8 22.6 114
Cinnabar Park 9707 20.2 20.8 97 23.4 24.0 98
Crow Creek 8335 4.7 5.0 94 10.6 10.9 97
Deadman Hill 10239 20.3 16.8 121 18.5 18.5 100
Rawah 9069 11.1 10.3 108 16.5 16.2 102
Roach 9740 14.3 15.6 92 17.7 19.8 89
Windy Peak 7915 8.5 7.4 115 10.7 10.5 102
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Basin Index (%) 105 101
S. PLATTE
Crow Creek 8335 4.7 5.0 94 10.6 10.9 97
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Basin Index (%) 94 97
LITTLE SNAKE RIVER
Battle Mountain 7498 9.4 8.2 115 18.9 15.6 121
Divide Peak 8730 21.8 20.0 109 24.8 21.8 114
Elk River 8739 18.7 17.0 110 20.7 20.0 104
Elkhead Divide 8800 23.1 -M * 24.6 -M *
Little Snake River 8928 29.1 26.2 111 34.5 32.8 105
Old Battle 9860 33.8 32.2 105 34.5 35.4 97
Sage Creek Basin 7850 12.9 11.2 115 15.6 13.3 117
Sandstone RS 8152 16.2 12.2 133 18.5 18.3 101
Whiskey Park 9020 31.8 26.6 120 30.7 28.0 110
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Basin Index (%) 113 107
UPPER GREEN RIVER
Big Sandy Opening 9080 13.7 13.4 102 15.2 13.5 113
Blind Bull Sum 8650 24.5 24.5 100 16.8 17.8 94
East Rim Divide 7930 7.5 10.0 75 11.3 11.4 99
Elkhart Park G.S. 9400 11.5 12.8 90 12.9 12.9 100
Gros Ventre Summit 8750 11.8 12.8 92 13.8 12.4 111
Gunsight Pass 9820 13.3 12.8 104 15.3 14.4 106
Indian Creek 9425 23.0 23.5 98 20.6 19.8 104
Kendall R.S. 7740 7.9 10.2 77 13.2 13.3 99
Larsen Creek 9000 8.8 8.5 104 15.0 14.0 107
Loomis Park 8240 11.3 14.8 76 15.4 17.0 91
New Fork Lake 8340 7.6 9.9 77 -M 10.8 *
Pocket Creek 9360 -M -M * -M -M *
Snider Basin 8060 9.5 11.8 81 12.9 14.0 92
Spring Creek Divide 9000 24.4 25.1 97 22.5 23.6 95
Triple Peak 8500 23.2 22.4 104 23.9 25.6 93
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Basin Index (%) 93 100
LOWER GREEN RIVER
Blacks Fork Jct 8869 10.6 7.6 139 14.3 12.4 115
Buck Pasture 9632 15.8 -M * 16.6 -M *
EF Blacks Fork GS 9360 10.5 11.8 89 10.3 11.4 90
Hams Fork 7840 -M 9.2 * 11.4 11.2 102
Henrys Fork 10182 -M -M * 13.6 -M *
Hewinta 9500 11.2 9.8 114 15.2 13.6 112
Hickerson Park 9122 9.0 6.8 132 13.8 10.8 128
Hole-in-Rock 9168 7.9 7.2 110 11.1 10.4 107
Indian Creek 9425 23.0 23.5 98 20.6 19.8 104
Kelley R.S. 8180 16.0 14.6 110 18.0 16.4 110
Spirit Lk 10235 15.1 13.6 111 19.3 18.1 107
Steel Creek Park 10158 16.0 15.4 104 18.1 16.8 108
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Basin Index (%) 108 108
UPPER BEAR RIVER
Bear River RS 8777 9.9 6.9 143 14.7 12.2 120
Bug Lake 7987 21.8 18.4 118 23.5 18.4 128
Burts Miller Ranch 8000 7.0 2.3 304 12.6 8.1 156
Chalk Creek #1 9171 24.4 23.1 106 25.7 23.4 110
Giveout 6930 9.2 5.4 170 13.4 12.7 106
Hayden Fork 9130 17.0 14.2 120 23.5 21.1 111
Kelley R.S. 8180 16.0 14.6 110 18.0 16.4 110
Lily Lake 9133 12.8 12.6 102 16.2 15.6 104
Monte Cristo 8932 30.6 27.2 112 29.6 26.4 112
Salt River Summit 7640 15.0 12.0 125 15.4 16.4 94
Spring Creek Divide 9000 24.4 25.1 97 22.5 23.6 95
Trial Lake 9992 29.8 22.2 134 27.2 22.6 120
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Basin Index (%) 118 112
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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.