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 MONDAY: FEBRUARY 17 , 2025
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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 7040 14.0 14.0 100 14.7 15.4 95
Blind Bull Sum 8880 19.7 17.2 115 14.7 13.3 111
Cottonwood Creek 7710 19.0 15.8 120 20.7 17.7 117
East Rim Divide 8010 8.5 7.9 108 8.6 8.2 105
Grand Targhee 9260 28.1 31.7 89 21.7 24.4 89
Granite Creek 6770 13.5 13.1 103 13.8 14.2 97
Grassy Lake 7330 23.2 23.4 99 25.8 26.2 98
Gros Ventre Summit 8760 9.2 8.8 105 9.0 8.6 105
Gunsight Pass 9830 10.9 9.4 116 10.1 10.2 99
Lewis Lake Divide 7880 22.0 21.3 103 21.9 24.6 89
Loomis Park 8240 12.5 11.4 110 12.7 12.3 103
Phillips Bench 8160 18.6 18.4 101 18.6 19.3 96
Salt River Summit 7630 11.8 9.7 122 10.2 11.4 89
Snake River Station 6900 14.8 13.6 109 15.9 16.4 97
Somsen Ranch 6830 11.0 9.6 115 12.1 12.3 98
Spring Creek Divide 9020 19.2 17.4 110 19.4 17.6 110
Thumb Divide 7970 10.6 11.2 95 10.3 12.4 83
Togwotee Pass 9590 16.3 17.0 96 17.8 18.2 98
Triple Peak 8520 20.9 16.6 126 21.0 18.4 114
Two Ocean Plateau 9240 20.0 21.2 94 17.0 18.6 91
Willow Creek 8060 25.0 21.0 119 25.9 23.5 110
Younts Peak 8340 10.7 10.9 98 10.0 11.0 91
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Basin Index (%) 106 99
MADISON HEADWATERS IN WYOMING
Black Bear 8160 24.2 27.5 88 24.4 26.0 94
Canyon 7870 9.4 -M * 9.8 -M *
Madison Plateau 7710 15.0 15.8 95 17.1 17.2 99
West Yellowstone 6680 8.4 8.0 105 9.4 10.4 90
Whiskey Creek 6790 11.3 11.1 102 14.7 13.2 111
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Basin Index (%) 94 98
YELLOWSTONE HEADWATERS IN WYOMING
Beartooth Lake 9360 14.9 16.6 90 14.0 15.2 92
Canyon 7870 9.4 -M * 9.8 -M *
Evening Star 9040 17.2 20.0 86 18.9 21.3 89
Fisher Creek 9110 20.8 24.3 86 22.1 23.7 93
Monument Peak 8740 12.8 15.0 85 15.0 16.0 94
Northeast Entrance 7420 8.2 7.6 108 9.0 10.0 90
Parker Peak 9420 16.5 15.8 104 16.4 14.8 111
Sylvan Lake 8440 13.4 13.9 96 16.2 17.0 95
Thumb Divide 7970 10.6 11.2 95 10.3 12.4 83
Two Ocean Plateau 9240 20.0 21.2 94 17.0 18.6 91
White Mill 8730 16.4 17.6 93 15.4 16.6 93
Wolverine 7650 9.9 9.0 110 11.1 9.2 121
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Basin Index (%) 93 95
WIND RIVER
Burroughs Creek 8760 8.1 -M * 11.2 -M *
Castle Creek 8410 4.8 5.2 92 5.3 6.4 83
Cold Springs 9640 5.6 5.5 102 5.9 6.6 89
Deer Park 9690 13.2 9.4 140 14.5 12.1 120
Hobbs Park 10080 10.6 8.8 120 10.2 8.0 128
Kirwin 9580 7.1 7.5 95 8.6 8.4 102
Little Warm 9370 7.8 7.4 105 9.4 8.6 109
South Pass 9040 11.0 10.1 109 12.0 10.2 118
St. Lawrence Alt 8610 3.2 -M * 5.7 -M *
Togwotee Pass 9590 16.3 17.0 96 17.8 18.2 98
Townsend Creek 8720 7.0 6.0 117 8.9 7.4 120
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Basin Index (%) 108 108
BIGHORN BASIN
Bald Mtn. 9360 15.9 13.4 119 12.9 11.0 117
Bear Trap Meadow 8200 4.7 4.6 102 4.4 5.7 77
Bone Springs Div 9340 11.1 11.2 99 8.5 10.7 79
Grave Springs 8560 5.8 5.7 102 6.9 6.4 108
Kirwin 9580 7.1 7.5 95 8.6 8.4 102
Marquette 8800 6.0 4.7 128 7.1 6.3 113
Middle Powder 7760 6.8 7.0 97 5.6 6.6 85
Owl Creek 8990 3.4 3.8 89 4.2 4.3 98
Powder River Pass 9480 5.7 7.8 73 7.4 9.0 82
Shell Creek 9570 9.1 10.6 86 8.2 9.7 85
Timber Creek 7910 3.3 3.2 103 3.5 5.2 67
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Basin Index (%) 99 93
SHOSHONE RIVER
Blackwater 9840 16.3 16.3 100 15.3 15.8 97
Evening Star 9040 17.2 20.0 86 18.9 21.3 89
Marquette 8800 6.0 4.7 128 7.1 6.3 113
Sylvan Lake 8440 13.4 13.9 96 16.2 17.0 95
Sylvan Road 7140 8.8 8.9 99 10.1 13.2 77
Younts Peak 8340 10.7 10.9 98 10.0 11.0 91
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Basin Index (%) 97 92
POWDER RIVER
Bear Trap Meadow 8200 4.7 4.6 102 4.4 5.7 77
Cloud Peak Reservoir 9830 7.8 9.8 80 8.0 9.2 87
Grave Springs 8560 5.8 5.7 102 6.9 6.4 108
Hansen Sawmill 8360 3.0 4.6 65 4.3 5.6 77
Middle Powder 7760 6.8 7.0 97 5.6 6.6 85
Powder River Pass 9480 5.7 7.8 73 7.4 9.0 82
Soldier Park 8680 1.9 4.5 42 4.2 6.5 65
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Basin Index (%) 81 83
TONGUE RIVER
Big Goose 8010 4.5 5.6 80 5.9 7.0 84
Bone Springs Div 9340 11.1 11.2 99 8.5 10.7 79
Burgess Junction 7900 8.0 7.6 105 8.9 8.3 107
Dome Lake 8890 6.2 7.9 78 6.2 8.5 73
Little Goose 8560 5.7 6.6 86 6.8 8.4 81
Sucker Creek 8840 8.6 8.5 101 10.5 9.6 109
Tie Creek 7050 5.3 4.0 132 7.5 7.7 97
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Basin Index (%) 96 90
BELLE FOURCHE
Blind Park 6900 5.0 5.6 89 7.3 7.6 96
Cole Canyon 5930 4.6 4.2 110 6.0 6.4 94
North Rapid Creek 6150 3.9 5.4 72 5.4 6.2 87
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Basin Index (%) 89 93
CHEYENNE RIVER BASIN
Blind Park 6900 5.0 5.6 89 7.3 7.6 96
North Rapid Creek 6150 3.9 5.4 72 5.4 6.2 87
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Basin Index (%) 81 92
UPPER N. PLATTE
Arapaho Ridge 10960 15.6 16.2 96 15.4 16.4 94
Blackhall Mtn 9830 20.9 20.4 102 22.1 20.7 107
Cinnabar Park 9670 14.0 15.8 89 16.1 17.3 93
Columbine 9170 19.9 16.7 119 20.4 17.4 117
Divide Peak 8700 13.0 13.8 94 15.3 15.3 100
Joe Wright 10140 16.4 14.4 114 20.9 18.2 115
Laprele Creek 8370 6.7 6.4 105 7.2 7.7 94
Med Bow 10500 28.2 -M * 24.9 -M *
Never Summer 10300 13.6 14.2 96 11.4 11.6 98
North French Creek 10150 23.3 19.5 119 22.2 18.6 119
Old Battle 9850 20.7 21.8 95 21.2 24.6 86
Rawah 9100 8.5 8.3 102 10.9 11.8 92
Sage Creek Basin 7830 9.4 10.2 92 9.6 9.8 98
Sand Lake 10080 20.3 18.5 110 19.9 16.7 119
South Brush Creek 8480 8.7 8.4 104 8.8 9.6 92
Tower 10610 31.8 30.8 103 31.7 28.4 112
Webber Springs 9250 14.3 15.4 93 16.3 18.4 89
Whiskey Park 8950 20.0 19.4 103 21.7 20.6 105
Willow Creek Pass 9520 9.3 9.7 96 9.4 9.8 96
Zirkel 9320 17.8 20.8 86 22.4 22.8 98
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Basin Index (%) 101 102
SWEETWATER
Deer Park 9690 13.2 9.4 140 14.5 12.1 120
Larsen Creek 8880 6.3 7.6 83 9.6 9.6 100
South Pass 9040 11.0 10.1 109 12.0 10.2 118
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Basin Index (%) 113 113
LOWER N. PLATTE
Casper Mtn. 7940 5.7 8.6 66 6.8 9.2 74
Laprele Creek 8370 6.7 6.4 105 7.2 7.7 94
Reno Hill 8410 7.6 9.0 84 9.6 9.6 100
Windy Peak 7900 4.9 5.5 89 5.1 7.0 73
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Basin Index (%) 84 86
LARAMIE RIVER
Brooklyn Lake 10250 17.0 15.0 113 17.4 15.2 114
Cinnabar Park 9670 14.0 15.8 89 16.1 17.3 93
Crow Creek 8320 2.8 5.8 48 5.5 7.3 75
Deadman Hill 10240 12.6 12.0 105 13.0 12.0 108
Rawah 9100 8.5 8.3 102 10.9 11.8 92
Roach 9710 10.2 11.5 89 12.5 13.2 95
Windy Peak 7900 4.9 5.5 89 5.1 7.0 73
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Basin Index (%) 95 96
S. PLATTE
Crow Creek 8320 2.8 5.8 48 5.5 7.3 75
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Basin Index (%) 48 75
LITTLE SNAKE RIVER
Battle Mountain 7460 9.0 8.8 102 12.2 11.1 110
Divide Peak 8700 13.0 13.8 94 15.3 15.3 100
Elk River 8710 12.2 13.8 88 14.7 14.0 105
Elkhead Divide 8780 12.3 -M * 14.0 -M *
Little Snake River 8930 18.8 20.1 94 24.0 24.3 99
Old Battle 9850 20.7 21.8 95 21.2 24.6 86
Sage Creek Basin 7830 9.4 10.2 92 9.6 9.8 98
Sandstone RS 8150 11.3 9.6 118 11.5 13.2 87
Whiskey Park 8950 20.0 19.4 103 21.7 20.6 105
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Basin Index (%) 97 98
UPPER GREEN RIVER
Big Sandy Opening 9100 8.0 9.0 89 8.3 8.8 94
Blind Bull Sum 8880 19.7 17.2 115 14.7 13.3 111
East Rim Divide 8010 8.5 7.9 108 8.6 8.2 105
Elkhart Park G.S. 9410 9.6 8.8 109 9.5 9.2 103
Gros Ventre Summit 8760 9.2 8.8 105 9.0 8.6 105
Gunsight Pass 9830 10.9 9.4 116 10.1 10.2 99
Indian Creek 9400 18.8 16.4 115 16.5 14.5 114
Kendall R.S. 7790 11.1 8.8 126 11.0 10.1 109
Larsen Creek 8880 6.3 7.6 83 9.6 9.6 100
Loomis Park 8240 12.5 11.4 110 12.7 12.3 103
New Fork Lake 8380 8.4 7.7 109 -M 7.8 *
Pocket Creek 9370 -M -M * -M -M *
Snider Basin 8080 10.9 9.2 118 12.4 9.8 127
Spring Creek Divide 9020 19.2 17.4 110 19.4 17.6 110
Triple Peak 8520 20.9 16.6 126 21.0 18.4 114
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Basin Index (%) 111 108
LOWER GREEN RIVER
Blacks Fork Jct 8880 8.8 6.2 142 10.5 9.2 114
Buck Pasture 9620 10.0 -M * 13.7 -M *
EF Blacks Fork GS 9360 7.5 7.7 97 9.3 7.7 121
Hams Fork 7870 9.7 8.5 114 9.4 8.0 118
Henrys Fork 10180 -M -M * 9.5 -M *
Hewinta 9510 7.6 6.6 115 11.2 9.7 115
Hickerson Park 9130 5.5 5.2 106 7.4 7.3 101
Hole-in-Rock 9170 3.8 5.0 76 7.3 7.0 104
Indian Creek 9400 18.8 16.4 115 16.5 14.5 114
Kelley R.S. 8240 12.3 10.6 116 13.1 12.0 109
Spirit Lk 10240 8.5 8.1 105 9.7 11.7 83
Steel Creek Park 10140 11.8 10.2 116 13.2 11.4 116
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Basin Index (%) 112 109
UPPER BEAR RIVER
Bear River RS 8510 7.4 6.8 109 10.0 8.6 116
Bug Lake 7980 13.8 13.5 102 13.4 13.5 99
Burts Miller Ranch 7900 4.9 5.0 98 9.3 5.5 169
Chalk Creek #1 9160 14.2 15.4 92 17.1 16.2 106
Giveout 6940 7.6 7.2 106 9.3 9.2 101
Hayden Fork 9160 10.6 10.4 102 16.0 14.6 110
Kelley R.S. 8240 12.3 10.6 116 13.1 12.0 109
Lily Lake 9130 9.0 9.3 97 11.3 11.2 101
Monte Cristo 8930 17.4 18.2 96 17.0 18.4 92
Salt River Summit 7630 11.8 9.7 122 10.2 11.4 89
Spring Creek Divide 9020 19.2 17.4 110 19.4 17.6 110
Trial Lake 9970 17.2 15.6 110 18.2 16.3 112
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Basin Index (%) 105 106
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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.
