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 SUNDAY: FEBRUARY 16 , 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 13.5 13.8 98 14.3 15.4 93
Blind Bull Sum 8880 18.9 17.2 110 14.4 13.2 109
Cottonwood Creek 7710 18.0 15.6 115 19.7 17.6 112
East Rim Divide 8010 8.1 7.9 103 8.3 8.2 101
Grand Targhee 9260 26.5 30.6 87 20.6 24.4 84
Granite Creek 6770 13.1 12.8 102 13.5 14.0 96
Grassy Lake 7330 22.3 23.1 97 25.1 26.0 97
Gros Ventre Summit 8760 8.8 8.6 102 8.8 8.4 105
Gunsight Pass 9830 10.7 9.3 115 9.9 10.1 98
Lewis Lake Divide 7880 21.1 21.3 99 21.8 24.6 89
Loomis Park 8240 12.2 11.2 109 12.4 12.3 101
Phillips Bench 8160 18.1 18.1 100 18.2 19.2 95
Salt River Summit 7630 11.2 9.6 117 9.7 11.3 86
Snake River Station 6900 14.2 13.4 106 15.3 16.4 93
Somsen Ranch 6830 10.6 9.4 113 11.7 12.2 96
Spring Creek Divide 9020 18.2 17.4 105 18.6 17.5 106
Thumb Divide 7970 10.4 11.0 95 10.1 12.4 81
Togwotee Pass 9590 15.8 16.6 95 17.3 18.1 96
Triple Peak 8520 20.2 16.6 122 20.3 18.4 110
Two Ocean Plateau 9240 19.6 21.1 93 16.7 18.5 90
Willow Creek 8060 24.2 20.8 116 25.4 23.2 109
Younts Peak 8340 10.3 10.8 95 9.7 10.8 90
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Basin Index (%) 103 97
MADISON HEADWATERS IN WYOMING
Black Bear 8160 23.3 27.5 85 23.6 25.8 91
Canyon 7870 9.1 -M * 9.5 -M *
Madison Plateau 7710 14.3 15.6 92 16.5 17.2 96
West Yellowstone 6680 8.0 8.0 100 9.2 10.4 88
Whiskey Creek 6790 10.8 11.0 98 14.2 13.0 109
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Basin Index (%) 91 96
YELLOWSTONE HEADWATERS IN WYOMING
Beartooth Lake 9360 14.4 16.4 88 13.5 15.1 89
Canyon 7870 9.1 -M * 9.5 -M *
Evening Star 9040 16.4 20.0 82 18.1 21.2 85
Fisher Creek 9110 20.2 23.8 85 21.4 23.6 91
Monument Peak 8740 12.4 14.8 84 14.6 15.8 92
Northeast Entrance 7420 7.9 7.6 104 8.7 9.9 88
Parker Peak 9420 15.9 15.8 101 15.9 14.8 107
Sylvan Lake 8440 12.8 13.8 93 15.5 17.0 91
Thumb Divide 7970 10.4 11.0 95 10.1 12.4 81
Two Ocean Plateau 9240 19.6 21.1 93 16.7 18.5 90
White Mill 8730 15.8 17.6 90 14.8 16.4 90
Wolverine 7650 9.4 9.0 104 10.6 9.2 115
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Basin Index (%) 91 92
WIND RIVER
Burroughs Creek 8760 8.0 -M * 10.9 -M *
Castle Creek 8410 4.7 5.2 90 5.2 6.4 81
Cold Springs 9640 5.4 5.4 100 5.8 6.6 88
Deer Park 9690 13.2 9.2 143 14.3 11.8 121
Hobbs Park 10080 10.4 8.8 118 10.0 8.0 125
Kirwin 9580 7.0 7.4 95 8.5 8.3 102
Little Warm 9370 7.6 7.2 106 9.1 8.6 106
South Pass 9040 11.0 10.1 109 11.9 10.2 117
St. Lawrence Alt 8610 3.0 -M * 5.6 -M *
Togwotee Pass 9590 15.8 16.6 95 17.3 18.1 96
Townsend Creek 8720 6.9 5.9 117 8.7 7.4 118
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Basin Index (%) 108 106
BIGHORN BASIN
Bald Mtn. 9360 15.7 13.2 119 12.7 10.9 117
Bear Trap Meadow 8200 4.7 4.5 104 4.4 5.6 79
Bone Springs Div 9340 10.8 11.0 98 8.2 10.4 79
Grave Springs 8560 5.8 5.7 102 6.8 6.4 106
Kirwin 9580 7.0 7.4 95 8.5 8.3 102
Marquette 8800 5.9 4.7 126 7.0 6.3 111
Middle Powder 7760 6.8 7.0 97 5.6 6.5 86
Owl Creek 8990 3.3 3.8 87 4.0 4.3 93
Powder River Pass 9480 5.6 7.8 72 7.2 8.8 82
Shell Creek 9570 8.9 10.4 86 8.0 9.5 84
Timber Creek 7910 3.3 3.2 103 3.8 5.2 73
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Basin Index (%) 99 93
SHOSHONE RIVER
Blackwater 9840 15.8 16.2 98 14.8 15.7 94
Evening Star 9040 16.4 20.0 82 18.1 21.2 85
Marquette 8800 5.9 4.7 126 7.0 6.3 111
Sylvan Lake 8440 12.8 13.8 93 15.5 17.0 91
Sylvan Road 7140 8.4 8.8 95 9.7 13.1 74
Younts Peak 8340 10.3 10.8 95 9.7 10.8 90
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Basin Index (%) 94 89
POWDER RIVER
Bear Trap Meadow 8200 4.7 4.5 104 4.4 5.6 79
Cloud Peak Reservoir 9830 7.7 9.7 79 8.0 9.1 88
Grave Springs 8560 5.8 5.7 102 6.8 6.4 106
Hansen Sawmill 8360 2.9 4.6 63 4.3 5.6 77
Middle Powder 7760 6.8 7.0 97 5.6 6.5 86
Powder River Pass 9480 5.6 7.8 72 7.2 8.8 82
Soldier Park 8680 2.0 4.4 45 4.3 6.4 67
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Basin Index (%) 81 84
TONGUE RIVER
Big Goose 8010 4.5 5.5 82 6.0 7.0 86
Bone Springs Div 9340 10.8 11.0 98 8.2 10.4 79
Burgess Junction 7900 8.0 7.4 108 8.9 8.3 107
Dome Lake 8890 6.1 7.8 78 6.2 8.4 74
Little Goose 8560 5.7 6.6 86 6.9 8.2 84
Sucker Creek 8840 8.5 8.4 101 10.4 9.4 111
Tie Creek 7050 5.2 3.8 137 7.5 7.6 99
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Basin Index (%) 97 91
BELLE FOURCHE
Blind Park 6900 4.9 5.6 88 7.2 7.3 99
Cole Canyon 5930 4.4 4.1 107 5.9 6.0 98
North Rapid Creek 6150 3.8 5.3 72 5.3 6.2 85
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Basin Index (%) 87 94
CHEYENNE RIVER BASIN
Blind Park 6900 4.9 5.6 88 7.2 7.3 99
North Rapid Creek 6150 3.8 5.3 72 5.3 6.2 85
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Basin Index (%) 80 93
UPPER N. PLATTE
Arapaho Ridge 10960 15.0 16.1 93 14.8 16.0 92
Blackhall Mtn 9830 20.0 20.4 98 21.2 20.6 103
Cinnabar Park 9670 12.7 15.0 85 14.8 17.0 87
Columbine 9170 18.9 16.6 114 19.7 17.2 115
Divide Peak 8700 12.2 13.8 88 14.6 15.1 97
Joe Wright 10140 15.8 14.2 111 20.5 18.0 114
Laprele Creek 8370 6.5 6.3 103 7.0 7.7 91
Med Bow 10500 26.2 -M * 23.2 -M *
Never Summer 10300 13.5 14.0 96 11.3 11.6 97
North French Creek 10150 21.4 19.3 111 20.3 18.6 109
Old Battle 9850 19.6 21.8 90 20.0 24.5 82
Rawah 9100 8.3 8.2 101 10.8 11.6 93
Sage Creek Basin 7830 8.8 10.1 87 9.2 9.7 95
Sand Lake 10080 19.2 18.2 105 18.8 16.6 113
South Brush Creek 8480 8.3 8.2 101 8.4 9.4 89
Tower 10610 30.7 30.8 100 30.7 28.2 109
Webber Springs 9250 13.6 15.0 91 15.5 18.2 85
Whiskey Park 8950 18.8 19.4 97 20.6 20.4 101
Willow Creek Pass 9520 9.1 9.6 95 9.2 9.6 96
Zirkel 9320 16.8 20.8 81 21.4 22.6 95
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Basin Index (%) 97 99
SWEETWATER
Deer Park 9690 13.2 9.2 143 14.3 11.8 121
Larsen Creek 8880 5.9 7.4 80 9.4 9.6 98
South Pass 9040 11.0 10.1 109 11.9 10.2 117
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Basin Index (%) 113 113
LOWER N. PLATTE
Casper Mtn. 7940 5.6 8.6 65 6.7 9.0 74
Laprele Creek 8370 6.5 6.3 103 7.0 7.7 91
Reno Hill 8410 7.4 8.8 84 9.4 9.4 100
Windy Peak 7900 4.5 5.5 82 4.8 7.0 69
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Basin Index (%) 82 84
LARAMIE RIVER
Brooklyn Lake 10250 15.8 14.8 107 16.2 15.0 108
Cinnabar Park 9670 12.7 15.0 85 14.8 17.0 87
Crow Creek 8320 2.6 5.8 45 5.4 7.2 75
Deadman Hill 10240 12.3 11.9 103 12.8 12.0 107
Rawah 9100 8.3 8.2 101 10.8 11.6 93
Roach 9710 9.9 11.4 87 12.2 13.2 92
Windy Peak 7900 4.5 5.5 82 4.8 7.0 69
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Basin Index (%) 91 93
S. PLATTE
Crow Creek 8320 2.6 5.8 45 5.4 7.2 75
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Basin Index (%) 45 75
LITTLE SNAKE RIVER
Battle Mountain 7460 8.2 8.8 93 11.7 11.1 105
Divide Peak 8700 12.2 13.8 88 14.6 15.1 97
Elk River 8710 11.6 13.8 84 14.2 13.8 103
Elkhead Divide 8780 11.6 -M * 13.4 -M *
Little Snake River 8930 17.7 20.0 88 23.0 24.3 95
Old Battle 9850 19.6 21.8 90 20.0 24.5 82
Sage Creek Basin 7830 8.8 10.1 87 9.2 9.7 95
Sandstone RS 8150 10.5 9.6 109 10.8 13.2 82
Whiskey Park 8950 18.8 19.4 97 20.6 20.4 101
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Basin Index (%) 92 94
UPPER GREEN RIVER
Big Sandy Opening 9100 7.8 9.0 87 8.1 8.6 94
Blind Bull Sum 8880 18.9 17.2 110 14.4 13.2 109
East Rim Divide 8010 8.1 7.9 103 8.3 8.2 101
Elkhart Park G.S. 9410 9.3 8.6 108 9.3 9.0 103
Gros Ventre Summit 8760 8.8 8.6 102 8.8 8.4 105
Gunsight Pass 9830 10.7 9.3 115 9.9 10.1 98
Indian Creek 9400 18.0 16.3 110 15.8 14.4 110
Kendall R.S. 7790 10.7 8.6 124 10.6 10.0 106
Larsen Creek 8880 5.9 7.4 80 9.4 9.6 98
Loomis Park 8240 12.2 11.2 109 12.4 12.3 101
New Fork Lake 8380 8.1 7.6 107 -M 7.7 *
Pocket Creek 9370 -M -M * -M -M *
Snider Basin 8080 10.4 9.2 113 11.9 9.7 123
Spring Creek Divide 9020 18.2 17.4 105 18.6 17.5 106
Triple Peak 8520 20.2 16.6 122 20.3 18.4 110
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Basin Index (%) 108 106
LOWER GREEN RIVER
Blacks Fork Jct 8880 8.4 5.9 142 10.2 9.1 112
Buck Pasture 9620 9.7 -M * 13.5 -M *
EF Blacks Fork GS 9360 7.2 7.7 94 9.1 7.6 120
Hams Fork 7870 9.1 8.4 108 8.9 7.8 114
Henrys Fork 10180 -M -M * 9.5 -M *
Hewinta 9510 7.2 6.4 112 10.8 9.6 112
Hickerson Park 9130 5.4 5.2 104 7.4 7.0 106
Hole-in-Rock 9170 3.8 4.9 78 7.1 6.8 104
Indian Creek 9400 18.0 16.3 110 15.8 14.4 110
Kelley R.S. 8240 11.6 10.6 109 12.4 11.8 105
Spirit Lk 10240 8.3 8.1 102 9.5 11.7 81
Steel Creek Park 10140 11.5 10.1 114 12.9 11.2 115
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Basin Index (%) 108 107
UPPER BEAR RIVER
Bear River RS 8510 7.1 6.4 111 9.9 8.3 119
Bug Lake 7980 13.2 13.4 99 12.9 13.3 97
Burts Miller Ranch 7900 4.5 5.0 90 9.1 5.5 165
Chalk Creek #1 9160 -M 15.0 * -M 16.0 *
Giveout 6940 7.0 7.2 97 8.9 9.2 97
Hayden Fork 9160 10.1 10.2 99 15.7 14.4 109
Kelley R.S. 8240 11.6 10.6 109 12.4 11.8 105
Lily Lake 9130 8.6 9.0 96 11.0 11.0 100
Monte Cristo 8930 16.8 18.2 92 16.5 18.2 91
Salt River Summit 7630 11.2 9.6 117 9.7 11.3 86
Spring Creek Divide 9020 18.2 17.4 105 18.6 17.5 106
Trial Lake 9970 16.7 15.6 107 17.8 16.2 110
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Basin Index (%) 102 104
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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.
