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 26 , 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 12.4 12.2 102 21.3 22.0 97
Blind Bull Sum 8880 28.4 25.0 114 20.2 19.2 105
Cottonwood Creek 7710 21.4 19.2 111 30.4 27.2 112
East Rim Divide 8010 5.4 8.6 63 13.7 12.0 114
Grand Targhee 9260 41.3 47.4 87 31.7 35.6 89
Granite Creek 6770 12.5 11.4 110 19.4 20.2 96
Grassy Lake 7330 26.9 31.0 87 35.8 37.8 95
Gros Ventre Summit 8760 12.5 12.9 97 14.9 13.9 107
Gunsight Pass 9830 13.9 13.4 104 15.9 15.6 102
Lewis Lake Divide 7880 28.5 31.3 91 36.8 35.8 103
Loomis Park 8240 12.9 12.0 108 19.4 17.5 111
Phillips Bench 8160 24.7 27.3 90 28.2 28.2 100
Salt River Summit 7630 11.3 10.2 111 15.0 17.4 86
Snake River Station 6900 11.6 13.2 88 22.8 23.9 95
Somsen Ranch 6830 3.0 4.7 64 17.5 17.8 98
Spring Creek Divide 9020 28.6 25.4 113 27.1 25.1 108
Thumb Divide 7970 -M 16.0 * -M 20.2 *
Togwotee Pass 9590 24.8 25.1 99 27.4 26.6 103
Triple Peak 8520 25.1 19.9 126 29.4 27.2 108
Two Ocean Plateau 9240 30.8 32.6 94 26.1 28.7 91
Willow Creek 8060 31.6 28.1 112 39.1 36.2 108
Younts Peak 8340 13.0 15.0 87 15.8 16.6 95
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Basin Index (%) 99 101
MADISON HEADWATERS IN WYOMING
Black Bear 8160 33.2 40.0 83 36.1 39.4 92
Canyon 7870 11.5 13.1 88 14.7 17.1 86
Madison Plateau 7710 21.6 23.2 93 26.5 26.6 100
West Yellowstone 6680 2.4 4.2 57 13.8 15.5 89
Whiskey Creek 6790 13.6 15.0 91 22.1 22.2 100
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Basin Index (%) 86 94
YELLOWSTONE HEADWATERS IN WYOMING
Beartooth Lake 9360 24.4 24.1 101 22.7 22.3 102
Canyon 7870 11.5 13.1 88 14.7 17.1 86
Evening Star 9040 27.5 26.8 103 30.5 30.6 100
Fisher Creek 9110 32.2 35.6 90 33.9 35.9 94
Monument Peak 8740 20.0 22.4 89 23.7 24.3 98
Northeast Entrance 7420 4.2 4.8 88 14.6 14.0 104
Parker Peak 9420 26.8 23.5 114 25.5 21.8 117
Sylvan Lake 8440 15.5 20.2 77 23.3 25.5 91
Thumb Divide 7970 -M 16.0 * -M 20.2 *
Two Ocean Plateau 9240 30.8 32.6 94 26.1 28.7 91
White Mill 8730 26.6 25.8 103 24.2 24.8 98
Wolverine 7650 9.4 5.3 177 16.6 13.3 125
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Basin Index (%) 98 99
WIND RIVER
Burroughs Creek 8760 10.6 -M * 18.2 -M *
Castle Creek 8410 2.2 2.4 92 9.8 9.2 107
Cold Springs 9640 4.4 5.9 75 11.0 11.0 100
Deer Park 9690 17.5 15.6 112 22.1 20.7 107
Hobbs Park 10080 15.1 16.1 94 17.1 15.7 109
Kirwin 9580 12.7 12.1 105 15.8 14.0 113
Little Warm 9370 9.9 10.1 98 15.1 13.0 116
South Pass 9040 14.4 14.7 98 19.2 17.8 108
St. Lawrence Alt 8610 .6 -M * 11.5 -M *
Togwotee Pass 9590 24.8 25.1 99 27.4 26.6 103
Townsend Creek 8720 11.4 9.5 120 16.1 13.2 122
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Basin Index (%) 101 109
BIGHORN BASIN
Bald Mtn. 9360 22.1 20.6 107 18.6 18.0 103
Bear Trap Meadow 8200 .5 3.0 17 8.1 10.6 76
Bone Springs Div 9340 17.7 17.4 102 13.2 17.7 75
Grave Springs 8560 6.0 8.2 73 11.1 11.4 97
Kirwin 9580 12.7 12.1 105 15.8 14.0 113
Marquette 8800 9.6 8.0 120 12.9 11.3 114
Middle Powder 7760 9.3 11.8 79 9.6 11.8 81
Owl Creek 8990 1.2 2.7 44 9.1 7.7 118
Powder River Pass 9480 6.3 11.0 57 12.2 15.2 80
Shell Creek 9570 14.5 16.6 87 13.7 15.4 89
Timber Creek 7910 5.5 3.8 145 10.4 9.6 108
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Basin Index (%) 91 94
SHOSHONE RIVER
Blackwater 9840 27.1 25.5 106 25.3 24.6 103
Evening Star 9040 27.5 26.8 103 30.5 30.6 100
Marquette 8800 9.6 8.0 120 12.9 11.3 114
Sylvan Lake 8440 15.5 20.2 77 23.3 25.5 91
Sylvan Road 7140 .0 7.6 0 14.8 17.8 83
Younts Peak 8340 13.0 15.0 87 15.8 16.6 95
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Basin Index (%) 90 97
POWDER RIVER
Bear Trap Meadow 8200 .5 3.0 17 8.1 10.6 76
Cloud Peak Reservoir 9830 11.9 15.8 75 14.2 16.3 87
Grave Springs 8560 6.0 8.2 73 11.1 11.4 97
Hansen Sawmill 8360 4.0 4.8 83 9.2 10.1 91
Middle Powder 7760 9.3 11.8 79 9.6 11.8 81
Powder River Pass 9480 6.3 11.0 57 12.2 15.2 80
Soldier Park 8680 1.5 6.2 24 8.5 11.0 77
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Basin Index (%) 65 84
TONGUE RIVER
Big Goose 8010 8.1 9.0 90 11.5 12.4 93
Bone Springs Div 9340 17.7 17.4 102 13.2 17.7 75
Burgess Junction 7900 12.7 12.0 106 13.7 14.2 96
Dome Lake 8890 11.2 11.4 98 11.0 15.4 71
Little Goose 8560 9.9 11.0 90 14.1 15.2 93
Sucker Creek 8840 12.0 13.3 90 16.3 16.6 98
Tie Creek 7050 5.1 3.0 170 13.6 13.3 102
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Basin Index (%) 99 89
BELLE FOURCHE
Blind Park 6900 .2 3.2 6 10.6 13.0 82
Cole Canyon 5930 -M 1.2 * -M 10.6 *
North Rapid Creek 6150 .0 2.6 0 9.2 10.7 86
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Basin Index (%) 3 84
CHEYENNE RIVER BASIN
Blind Park 6900 .2 3.2 6 10.6 13.0 82
North Rapid Creek 6150 .0 2.6 0 9.2 10.7 86
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Basin Index (%) 3 84
UPPER N. PLATTE
Arapaho Ridge 10960 19.8 23.9 83 21.8 24.8 88
Blackhall Mtn 9830 30.0 32.3 93 33.3 33.4 100
Cinnabar Park 9670 14.7 20.1 73 23.3 25.5 91
Columbine 9170 15.0 20.6 73 28.3 28.4 100
Divide Peak 8700 11.5 17.3 66 21.1 24.2 87
Joe Wright 10140 22.4 22.8 98 30.0 29.6 101
Laprele Creek 8370 4.3 7.2 60 11.4 13.7 83
Med Bow 10500 41.3 -M * 36.2 -M *
Never Summer 10300 21.2 22.1 96 18.2 19.1 95
North French Creek 10150 32.8 31.4 104 31.9 31.2 102
Old Battle 9850 30.2 35.2 86 30.8 37.0 83
Rawah 9100 5.7 8.6 66 15.4 18.4 84
Sage Creek Basin 7830 .0 2.6 0 12.9 14.4 90
Sand Lake 10080 29.4 31.1 95 29.2 28.3 103
South Brush Creek 8480 3.8 8.4 45 13.1 15.5 85
Tower 10610 43.0 46.8 92 44.6 44.9 99
Webber Springs 9250 17.5 22.1 79 24.4 28.5 86
Whiskey Park 8950 24.8 27.4 91 30.4 31.5 97
Willow Creek Pass 9520 13.6 14.9 91 14.4 15.6 92
Zirkel 9320 15.2 24.3 63 32.0 34.0 94
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Basin Index (%) 85 94
SWEETWATER
Deer Park 9690 17.5 15.6 112 22.1 20.7 107
Larsen Creek 8880 1.3 5.8 22 14.0 15.4 91
South Pass 9040 14.4 14.7 98 19.2 17.8 108
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Basin Index (%) 92 103
LOWER N. PLATTE
Casper Mtn. 7940 8.2 13.6 60 13.0 16.8 77
Laprele Creek 8370 4.3 7.2 60 11.4 13.7 83
Reno Hill 8410 12.2 14.0 87 16.4 17.8 92
Windy Peak 7900 3.3 6.0 55 8.8 12.3 72
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Basin Index (%) 69 82
LARAMIE RIVER
Brooklyn Lake 10250 22.1 23.1 96 26.0 24.6 106
Cinnabar Park 9670 14.7 20.1 73 23.3 25.5 91
Crow Creek 8320 .1 .8 12 9.5 12.2 78
Deadman Hill 10240 17.2 19.4 89 19.1 20.7 92
Rawah 9100 5.7 8.6 66 15.4 18.4 84
Roach 9710 11.3 16.3 69 18.4 21.2 87
Windy Peak 7900 3.3 6.0 55 8.8 12.3 72
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Basin Index (%) 79 89
S. PLATTE
Crow Creek 8320 .1 .8 12 9.5 12.2 78
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Basin Index (%) 12 78
LITTLE SNAKE RIVER
Battle Mountain 7460 .0 2.7 0 16.5 17.0 97
Divide Peak 8700 11.5 17.3 66 21.1 24.2 87
Elk River 8710 7.5 14.2 53 21.2 21.8 97
Elkhead Divide 8780 10.5 -M * 20.6 -M *
Little Snake River 8930 19.7 24.2 81 32.6 36.1 90
Old Battle 9850 30.2 35.2 86 30.8 37.0 83
Sage Creek Basin 7830 .0 2.6 0 12.9 14.4 90
Sandstone RS 8150 4.7 8.0 59 15.9 19.2 83
Whiskey Park 8950 24.8 27.4 91 30.4 31.5 97
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Basin Index (%) 75 90
UPPER GREEN RIVER
Big Sandy Opening 9100 12.3 12.6 98 13.8 14.6 95
Blind Bull Sum 8880 28.4 25.0 114 20.2 19.2 105
East Rim Divide 8010 5.4 8.6 63 13.7 12.0 114
Elkhart Park G.S. 9410 11.8 12.1 98 14.8 13.8 107
Gros Ventre Summit 8760 12.5 12.9 97 14.9 13.9 107
Gunsight Pass 9830 13.9 13.4 104 15.9 15.6 102
Indian Creek 9400 25.4 23.4 109 24.7 20.9 118
Kendall R.S. 7790 8.9 6.6 135 16.5 14.0 118
Larsen Creek 8880 1.3 5.8 22 14.0 15.4 91
Loomis Park 8240 12.9 12.0 108 19.4 17.5 111
New Fork Lake 8380 6.7 7.4 91 -M 11.6 *
Pocket Creek 9370 -M -M * -M -M *
Snider Basin 8080 9.5 9.4 101 17.7 14.8 120
Spring Creek Divide 9020 28.6 25.4 113 27.1 25.1 108
Triple Peak 8520 25.1 19.9 126 29.4 27.2 108
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Basin Index (%) 104 108
LOWER GREEN RIVER
Blacks Fork Jct 8880 5.4 5.6 96 14.3 13.8 104
Buck Pasture 9620 9.1 -M * 19.8 -M *
EF Blacks Fork GS 9360 4.5 8.4 54 13.6 13.0 105
Hams Fork 7870 -M 5.6 * -M 11.8 *
Henrys Fork 10180 -M -M * 13.6 -M *
Hewinta 9510 2.9 6.7 43 15.4 15.4 100
Hickerson Park 9130 .0 4.8 0 10.6 11.9 89
Hole-in-Rock 9170 .0 4.6 0 11.3 11.6 97
Indian Creek 9400 25.4 23.4 109 24.7 20.9 118
Kelley R.S. 8240 13.8 13.0 106 19.5 17.8 110
Spirit Lk 10240 10.2 13.2 77 15.9 19.4 82
Steel Creek Park 10140 15.9 16.8 95 18.4 17.9 103
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Basin Index (%) 81 101
UPPER BEAR RIVER
Bear River RS 8510 .0 .9 0* 13.7 13.4 102
Bug Lake 7980 12.1 16.0 76 20.6 19.2 107
Burts Miller Ranch 7900 .0 .0 * 12.9 8.7 148
Chalk Creek #1 9160 16.8 21.9 77 24.6 24.6 100
Giveout 6940 .0 .2 0* 14.2 13.6 104
Hayden Fork 9160 4.4 10.2 43 22.3 22.1 101
Kelley R.S. 8240 13.8 13.0 106 19.5 17.8 110
Lily Lake 9130 6.9 10.2 68 15.9 16.9 94
Monte Cristo 8930 19.6 26.0 75 25.9 27.6 94
Salt River Summit 7630 11.3 10.2 111 15.0 17.4 86
Spring Creek Divide 9020 28.6 25.4 113 27.1 25.1 108
Trial Lake 9970 21.6 22.7 95 25.7 24.2 106
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Basin Index (%) 86 103
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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.
