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: FEBRUARY 15 , 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 9.4 13.8 68 12.9 15.2 85
Blind Bull Sum 8650 13.9 16.4 85 9.7 13.2 73
Cottonwood Creek 7670 14.7 15.3 96 17.8 17.3 103
East Rim Divide 7930 6.0 7.8 77 7.1 8.1 88
Grand Targhee 9260 26.1 30.6 85 20.2 23.8 85
Granite Creek 6770 8.7 12.7 69 10.0 14.0 71
Grassy Lake 7265 16.9 23.0 73 22.7 25.6 89
Gros Ventre Summit 8750 6.8 8.6 79 8.3 8.4 99
Gunsight Pass 9820 8.1 9.3 87 10.2 9.8 104
Lewis Lake Divide 7850 18.2 21.0 87 22.6 24.2 93
Loomis Park 8240 8.3 11.0 75 9.5 12.2 78
Phillips Bench 8200 14.8 18.1 82 17.7 19.1 93
Salt River Summit 7640 9.6 9.5 101 9.3 11.2 83
Snake River Station 6920 10.2 13.4 76 15.7 16.4 96
Somsen Ranch 6800 10.6 9.4 113 14.8 12.0 123
Spring Creek Divide 9000 14.3 16.8 85 14.8 17.4 85
Thumb Divide 7980 9.4 10.9 86 10.7 12.4 86
Togwotee Pass 9580 12.4 16.4 76 12.2 17.5 70
Triple Peak 8500 13.3 16.0 83 15.1 17.6 86
Two Ocean Plateau 9240 15.8 20.9 76 16.5 18.3 90
Willow Creek 8080 19.8 20.6 96 22.6 23.2 97
Younts Peak 8350 7.2 10.6 68 9.2 10.7 86
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Basin Index (%) 83 89
MADISON HEADWATERS IN WYOMING
Black Bear 8170 20.2 27.0 75 24.1 25.4 95
Canyon 7870 6.3 -M * 8.7 -M *
Madison Plateau 7750 12.1 15.6 78 15.2 16.9 90
West Yellowstone 6700 5.0 8.0 62 8.9 10.2 87
Whiskey Creek 6800 8.0 10.8 74 13.5 13.0 104
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Basin Index (%) 74 94
YELLOWSTONE HEADWATERS IN WYOMING
Beartooth Lake 9360 9.2 16.3 56 9.0 15.0 60
Canyon 7870 6.3 -M * 8.7 -M *
Evening Star 9200 12.5 20.0 62 18.2 21.1 86
Fisher Creek 9100 12.2 23.8 51 15.2 23.4 65
Monument Peak 8850 9.0 14.8 61 11.8 15.6 76
Northeast Entrance 7350 2.7 7.5 36 6.2 9.8 63
Parker Peak 9400 12.0 15.6 77 13.9 14.6 95
Sylvan Lake 8420 9.9 13.8 72 15.5 16.6 93
Thumb Divide 7980 9.4 10.9 86 10.7 12.4 86
Two Ocean Plateau 9240 15.8 20.9 76 16.5 18.3 90
White Mill 8700 9.9 17.3 57 10.9 16.4 66
Wolverine 7650 6.2 9.0 69 9.2 9.0 102
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Basin Index (%) 64 80
WIND RIVER
Burroughs Creek 8750 7.5 -M * 7.9 -M *
Castle Creek 8400 4.6 5.1 90 5.8 6.3 92
Cold Springs 9630 5.6 5.4 104 8.1 6.6 123
Deer Park 9700 10.1 9.2 110 12.1 11.7 103
Hobbs Park 10100 10.4 8.8 118 11.4 8.0 142
Kirwin 9550 8.1 7.4 109 10.4 8.3 125
Little Warm 9370 6.2 7.2 86 8.7 8.4 104
South Pass 9040 8.7 10.0 87 10.3 10.0 103
St. Lawrence Alt 8620 3.8 -M * 6.8 -M *
Togwotee Pass 9580 12.4 16.4 76 12.2 17.5 70
Townsend Creek 8700 5.9 5.9 100 9.2 7.4 124
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Basin Index (%) 95 105
BIGHORN BASIN
Bald Mtn. 9380 8.7 13.1 66 8.4 10.9 77
Bear Trap Meadow 8200 2.6 4.4 59 5.2 5.6 93
Bone Springs Div 9350 7.5 11.0 68 8.0 10.4 77
Grave Springs 8550 2.6 5.4 48 4.9 6.4 77
Kirwin 9550 8.1 7.4 109 10.4 8.3 125
Marquette 8760 8.4 4.7 179 11.2 6.3 178
Middle Powder 7760 3.6 6.8 53 5.5 6.4 86
Owl Creek 8975 -M 3.8 * -M 4.3 *
Powder River Pass 9480 4.2 7.5 56 7.4 8.8 84
Shell Creek 9580 8.3 10.4 80 9.0 9.4 96
Timber Creek 7950 5.5 3.2 172 9.2 5.2 177
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Basin Index (%) 81 102
SHOSHONE RIVER
Blackwater 9780 14.0 16.0 88 14.2 15.6 91
Evening Star 9200 12.5 20.0 62 18.2 21.1 86
Marquette 8760 8.4 4.7 179 11.2 6.3 178
Sylvan Lake 8420 9.9 13.8 72 15.5 16.6 93
Sylvan Road 7120 4.4 8.8 50 10.9 12.9 84
Younts Peak 8350 7.2 10.6 68 9.2 10.7 86
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Basin Index (%) 76 95
POWDER RIVER
Bear Trap Meadow 8200 2.6 4.4 59 5.2 5.6 93
Cloud Peak Reservoir 9860 8.0 9.6 83 9.6 9.0 107
Grave Springs 8550 2.6 5.4 48 4.9 6.4 77
Hansen Sawmill 8360 2.5 4.6 54 5.2 5.6 93
Middle Powder 7760 3.6 6.8 53 5.5 6.4 86
Powder River Pass 9480 4.2 7.5 56 7.4 8.8 84
Soldier Park 8720 2.0 4.4 45 6.7 6.4 105
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Basin Index (%) 60 92
TONGUE RIVER
Big Goose 7990 3.2 5.4 59 7.2 7.0 103
Bone Springs Div 9350 7.5 11.0 68 8.0 10.4 77
Burgess Junction 7880 4.4 7.4 59 7.8 8.2 95
Dome Lake 8880 -M 7.7 * 6.9 8.4 82
Little Goose 8870 4.9 6.6 74 8.2 8.1 101
Sucker Creek 8880 6.1 8.3 73 9.4 9.2 102
Tie Creek 6870 1.0 3.7 27 8.7 7.5 116
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Basin Index (%) 64 96
BELLE FOURCHE
Blind Park 6890 2.7 5.5 49 4.7 7.3 64
Cole Canyon 5910 1.9 4.0 48 3.9 5.7 68
North Rapid Creek 6130 4.4 5.1 86 5.8 6.1 95
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Basin Index (%) 62 75
CHEYENNE RIVER BASIN
Blind Park 6890 2.7 5.5 49 4.7 7.3 64
North Rapid Creek 6130 4.4 5.1 86 5.8 6.1 95
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Basin Index (%) 67 78
UPPER N. PLATTE
Arapaho Ridge 10976 14.4 15.9 91 14.6 15.9 92
Blackhall Mtn 9839 20.4 20.0 102 22.0 20.3 108
Cinnabar Park 9707 9.9 15.0 66 12.0 17.0 71
Columbine 9167 17.2 16.2 106 17.5 17.1 102
Divide Peak 8730 11.7 13.8 85 15.3 15.0 102
Joe Wright 10158 10.6 14.0 76 14.6 17.7 82
Laprele Creek 8390 4.1 6.2 66 6.8 7.7 88
Med Bow 10512 21.2 -M * 20.2 -M *
Never Summer 10323 11.7 14.0 84 8.8 11.5 77
North French Creek 10153 14.9 19.2 78 15.6 18.5 84
Old Battle 9860 17.7 21.8 81 18.5 24.2 76
Rawah 9069 7.2 8.2 88 10.3 11.5 90
Sage Creek Basin 7850 7.6 9.9 77 9.5 9.6 99
Sand Lake 10098 15.2 18.0 84 15.1 16.6 91
South Brush Creek 8495 5.7 8.2 70 7.3 9.3 78
Tower 10620 27.5 30.6 90 26.0 28.2 92
Webber Springs 9260 13.3 15.0 89 14.5 17.9 81
Whiskey Park 9020 20.1 19.1 105 20.5 20.0 102
Willow Creek Pass 9523 8.9 9.5 94 10.0 9.4 106
Zirkel 9338 16.4 20.8 79 18.3 22.5 81
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Basin Index (%) 86 89
SWEETWATER
Deer Park 9700 10.1 9.2 110 12.1 11.7 103
Larsen Creek 9000 4.4 7.4 59 8.4 9.6 88
South Pass 9040 8.7 10.0 87 10.3 10.0 103
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Basin Index (%) 87 98
LOWER N. PLATTE
Casper Mtn. 7920 5.3 8.6 62 9.8 9.0 109
Laprele Creek 8390 4.1 6.2 66 6.8 7.7 88
Reno Hill 8430 5.6 8.8 64 9.6 9.4 102
Windy Peak 7915 4.4 5.3 83 5.9 6.8 87
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Basin Index (%) 67 98
LARAMIE RIVER
Brooklyn Lake 10250 12.9 14.8 87 13.7 14.7 93
Cinnabar Park 9707 9.9 15.0 66 12.0 17.0 71
Crow Creek 8335 2.0 5.8 34 5.6 7.2 78
Deadman Hill 10239 10.8 11.8 92 10.1 12.0 84
Rawah 9069 7.2 8.2 88 10.3 11.5 90
Roach 9740 7.9 11.2 71 9.9 13.0 76
Windy Peak 7915 4.4 5.3 83 5.9 6.8 87
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Basin Index (%) 76 82
S. PLATTE
Crow Creek 8335 2.0 5.8 34 5.6 7.2 78
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Basin Index (%) 34 78
LITTLE SNAKE RIVER
Battle Mountain 7498 7.6 8.8 86 12.4 11.1 112
Divide Peak 8730 11.7 13.8 85 15.3 15.0 102
Elk River 8739 12.2 13.7 89 13.1 13.7 96
Elkhead Divide 8800 15.0 -M * 16.8 -M *
Little Snake River 8928 18.2 19.6 93 21.6 24.0 90
Old Battle 9860 17.7 21.8 81 18.5 24.2 76
Sage Creek Basin 7850 7.6 9.9 77 9.5 9.6 99
Sandstone RS 8152 11.5 9.6 120 11.4 13.0 88
Whiskey Park 9020 20.1 19.1 105 20.5 20.0 102
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Basin Index (%) 92 94
UPPER GREEN RIVER
Big Sandy Opening 9080 7.8 9.0 87 8.6 8.5 101
Blind Bull Sum 8650 13.9 16.4 85 9.7 13.2 73
East Rim Divide 7930 6.0 7.8 77 7.1 8.1 88
Elkhart Park G.S. 9400 6.4 8.6 74 7.8 9.0 87
Gros Ventre Summit 8750 6.8 8.6 79 8.3 8.4 99
Gunsight Pass 9820 8.1 9.3 87 10.2 9.8 104
Indian Creek 9425 14.1 16.3 87 12.7 14.2 89
Kendall R.S. 7740 5.8 8.6 67 8.5 10.0 85
Larsen Creek 9000 4.4 7.4 59 8.4 9.6 88
Loomis Park 8240 8.3 11.0 75 9.5 12.2 78
New Fork Lake 8340 5.8 7.6 76 3.9 7.5 52
Pocket Creek 9360 -M -M * -M -M *
Snider Basin 8060 6.1 9.0 68 8.1 9.6 84
Spring Creek Divide 9000 14.3 16.8 85 14.8 17.4 85
Triple Peak 8500 13.3 16.0 83 15.1 17.6 86
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Basin Index (%) 79 86
LOWER GREEN RIVER
Blacks Fork Jct 8869 7.9 5.9 134 10.1 9.0 112
Buck Pasture 9632 10.4 -M * 11.4 -M *
EF Blacks Fork GS 9360 5.8 7.4 78 7.3 7.6 96
Hams Fork 7840 -M 8.3 * 7.2 7.8 92
Henrys Fork 10182 -M -M * 9.1 -M *
Hewinta 9500 7.2 6.4 112 10.6 9.6 110
Hickerson Park 9122 6.3 5.1 124 8.7 7.0 124
Hole-in-Rock 9168 5.7 4.9 116 7.0 6.8 103
Indian Creek 9425 14.1 16.3 87 12.7 14.2 89
Kelley R.S. 8180 10.5 10.5 100 11.4 11.7 97
Spirit Lk 10235 8.9 7.9 113 12.5 11.1 113
Steel Creek Park 10158 10.0 10.1 99 12.3 11.2 110
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Basin Index (%) 103 104
UPPER BEAR RIVER
Bear River RS 8777 7.2 6.4 112 9.7 8.3 117
Bug Lake 7987 15.2 13.4 113 15.3 13.2 116
Burts Miller Ranch 8000 5.8 4.8 121 9.1 5.4 169
Chalk Creek #1 9171 14.0 15.0 93 16.2 16.0 101
Giveout 6930 7.0 7.2 97 8.7 9.2 95
Hayden Fork 9130 11.6 10.2 114 15.7 14.3 110
Kelley R.S. 8180 10.5 10.5 100 11.4 11.7 97
Lily Lake 9133 9.5 8.8 108 11.0 11.0 100
Monte Cristo 8932 18.2 18.0 101 18.5 18.1 102
Salt River Summit 7640 9.6 9.5 101 9.3 11.2 83
Spring Creek Divide 9000 14.3 16.8 85 14.8 17.4 85
Trial Lake 9992 15.5 15.4 101 16.3 16.2 101
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Basin Index (%) 102 103
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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.
