Wyoming Snow Precipitation Update
United States Natural Resources Water and Climate Center
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 FRIDAY: MARCH 20 , 2026
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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 14.5 16.0 91 22.3 18.6 120
Blind Bull Sum 8880 22.3 22.1 101 15.7 16.6 95
Cottonwood Creek 7710 15.8 19.9 79 23.8 22.6 105
East Rim Divide 8010 7.3 10.0 73 11.0 10.2 108
Grand Targhee 9260 -M 37.1 * -M 27.9 *
Granite Creek 6770 12.0 15.8 76 19.9 16.9 118
Grassy Lake 7330 17.4 29.6 59 28.7 32.0 90
Gros Ventre Summit 8760 11.8 11.3 104 14.3 11.1 129
Gunsight Pass 9820 12.5 12.1 103 15.1 12.6 120
Lewis Lake Divide 7880 28.6 28.6 100 36.0 29.5 122
Loomis Park 8240 11.2 14.2 79 15.4 15.6 99
Phillips Bench 8170 19.7 23.6 83 25.9 24.0 108
Salt River Summit 7630 8.9 12.4 72 15.2 13.8 110
Snake River Station 6900 10.7 16.5 65 20.1 19.8 102
Somsen Ranch 6830 3.7 11.5 32 15.9 14.7 108
Spring Creek Divide 9020 21.1 22.6 93 23.3 21.8 107
Thumb Divide 7970 14.7 14.6 101 19.6 15.4 127
Togwotee Pass 9590 21.9 21.4 102 26.9 22.6 119
Triple Peak 8520 21.8 21.8 100 25.6 23.2 110
Two Ocean Plateau 9240 31.8 26.4 120 30.4 23.5 129
Willow Creek 8060 22.7 26.8 85 29.2 29.8 98
Younts Peak 8340 15.3 13.6 112 21.3 13.1 163
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Basin Index (%) 88 112
MADISON HEADWATERS IN WYOMING
Black Bear 8160 25.6 36.0 71 32.0 33.2 96
Canyon 7870 10.4 12.6 83 14.8 14.0 106
Madison Plateau 7710 17.1 20.5 83 24.3 22.0 110
West Yellowstone 6680 7.7 10.3 75 14.0 13.0 108
Whiskey Creek 6790 11.1 14.4 77 20.3 17.6 115
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Basin Index (%) 77 106
YELLOWSTONE HEADWATERS IN WYOMING
Beartooth Lake 9360 23.7 19.8 120 25.3 18.2 139
Canyon 7870 10.4 12.6 83 14.8 14.0 106
Evening Star 9030 27.6 23.7 116 33.3 25.7 130
Fisher Creek 9110 34.1 29.2 117 35.6 28.9 123
Monument Peak 8740 20.0 18.7 107 24.7 19.1 129
Northeast Entrance 7420 7.7 10.0 77 15.6 11.9 131
Parker Peak 9420 24.1 19.0 127 25.3 18.2 139
Sylvan Lake 8440 16.1 18.5 87 23.7 20.6 115
Thumb Divide 7970 14.7 14.6 101 19.6 15.4 127
Two Ocean Plateau 9240 31.8 26.4 120 30.4 23.5 129
White Mill 8730 25.5 22.0 116 25.6 21.0 122
Wolverine 7660 7.9 10.6 75 15.8 11.2 141
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Basin Index (%) 108 127
WIND RIVER
Burroughs Creek 8760 9.6 -M * 17.9 -M *
Castle Creek 8410 4.9 7.0 70 7.7 7.8 99
Cold Springs 9640 6.1 6.4 95 12.1 7.8 155
Deer Park 9690 13.2 12.6 105 16.5 15.7 105
Hobbs Park 10080 11.9 12.2 98 14.1 11.0 128
Kirwin 9580 13.1 9.4 139 18.3 10.3 178
Little Warm 9370 9.4 9.0 104 14.0 11.0 127
South Pass 9040 11.6 13.3 87 13.8 13.3 104
St. Lawrence Alt 8610 -M -M * -M -M *
Togwotee Pass 9590 21.9 21.4 102 26.9 22.6 119
Townsend Creek 8720 5.7 8.0 71 10.1 9.0 112
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Basin Index (%) 98 123
BIGHORN BASIN
Bald Mtn. 9360 15.2 16.4 93 15.1 14.2 106
Bear Trap Meadow 8200 4.1 5.8 71 9.0 7.2 125
Bone Springs Div 9340 12.3 14.5 85 10.6 13.3 80
Grave Springs 8560 4.2 7.8 54 8.0 8.4 95
Kirwin 9580 13.1 9.4 139 18.3 10.3 178
Marquette 8800 2.7 6.2 44 6.8 7.7 88
Middle Powder 7760 6.0 9.1 66 9.8 8.8 111
Owl Creek 8990 1.8 4.8 38 5.6 5.2 108
Powder River Pass 9480 9.3 9.8 95 14.0 11.0 127
Shell Creek 9570 12.0 13.0 92 13.2 12.0 110
Timber Creek 7910 .0 4.1 0 3.5 6.6 53
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Basin Index (%) 80 109
SHOSHONE RIVER
Blackwater 9830 21.6 20.4 106 25.6 19.5 131
Evening Star 9030 27.6 23.7 116 33.3 25.7 130
Marquette 8800 2.7 6.2 44 6.8 7.7 88
Sylvan Lake 8440 16.1 18.5 87 23.7 20.6 115
Sylvan Road 7140 6.4 11.2 57 17.9 15.1 119
Younts Peak 8340 15.3 13.6 112 21.3 13.1 163
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Basin Index (%) 96 126
POWDER RIVER
Bear Trap Meadow 8200 4.1 5.8 71 9.0 7.2 125
Cloud Peak Reservoir 9830 11.4 13.2 86 12.6 11.4 111
Grave Springs 8560 4.2 7.8 54 8.0 8.4 95
Hansen Sawmill 8360 3.2 5.8 55 9.4 7.5 125
Middle Powder 7760 6.0 9.1 66 9.8 8.8 111
Powder River Pass 9480 9.3 9.8 95 14.0 11.0 127
Soldier Park 8680 1.1 5.9 19 7.0 8.0 88
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Basin Index (%) 68 112
TONGUE RIVER
Big Goose 8010 -M 7.3 * 8.0 8.6 93
Bone Springs Div 9340 12.3 14.5 85 10.6 13.3 80
Burgess Junction 7910 6.2 9.4 66 9.8 10.2 96
Dome Lake 8890 7.3 10.1 72 10.9 10.8 101
Little Goose 8560 5.2 8.3 63 10.5 10.0 105
Sucker Creek 8840 7.1 10.8 66 11.8 12.0 98
Tie Creek 7050 .0 4.8 0 8.0 9.2 87
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Basin Index (%) 66 94
BELLE FOURCHE
Blind Park 6900 1.5 7.1 21 11.2 9.8 114
Cole Canyon 5930 2.2 5.0 44 9.8 7.6 129
North Rapid Creek 6150 3.2 6.4 50 8.5 8.0 106
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Basin Index (%) 37 116
CHEYENNE RIVER BASIN
Blind Park 6900 1.5 7.1 21 11.2 9.8 114
North Rapid Creek 6150 3.2 6.4 50 8.5 8.0 106
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Basin Index (%) 35 111
UPPER N. PLATTE
Arapaho Ridge 10960 13.4 19.3 69 15.0 19.1 79
Blackhall Mtn 9830 16.4 26.7 61 20.2 26.0 78
Cinnabar Park 9670 12.1 18.1 67 16.5 21.0 79
Columbine 9170 14.4 21.6 67 18.7 21.7 86
Divide Peak 8700 9.0 17.4 52 14.1 19.0 74
Joe Wright 10140 10.5 18.4 57 18.1 23.0 79
Laprele Creek 8370 4.7 8.8 53 9.4 10.1 93
Med Bow 10500 26.2 -M * 25.2 -M *
Never Summer 10300 13.4 17.6 76 9.8 14.5 68
North French Creek 10150 20.8 24.5 85 21.9 23.2 94
Old Battle 9840 20.9 26.4 79 26.0 29.7 88
Rawah 9100 5.6 10.2 55 9.3 13.8 67
Sage Creek Basin 7830 -M 12.1 * 9.2 11.6 79
Sand Lake 10080 17.7 23.3 76 19.1 21.7 88
South Brush Creek 8480 5.4 10.6 51 8.3 12.0 69
Tower 10610 25.1 38.8 65 29.1 36.1 81
Webber Springs 9250 13.8 19.8 70 19.0 22.4 85
Whiskey Park 8950 19.4 24.4 80 23.4 24.8 94
Willow Creek Pass 9520 7.1 11.6 61 9.4 12.0 78
Zirkel 9320 14.3 26.0 55 23.9 27.6 87
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Basin Index (%) 67 82
SWEETWATER
Deer Park 9690 13.2 12.6 105 16.5 15.7 105
Larsen Creek 8880 4.9 10.4 47 10.5 11.6 91
South Pass 9040 11.6 13.3 87 13.8 13.3 104
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Basin Index (%) 82 100
LOWER N. PLATTE
Casper Mtn. 7940 4.6 11.8 39 9.2 11.4 81
Laprele Creek 8370 4.7 8.8 53 9.4 10.1 93
Reno Hill 8410 6.8 11.8 58 10.8 12.0 90
Windy Peak 7890 2.2 6.8 32 7.4 8.4 88
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Basin Index (%) 47 88
LARAMIE RIVER
Brooklyn Lake 10250 14.8 18.6 80 18.2 18.9 96
Cinnabar Park 9670 12.1 18.1 67 16.5 21.0 79
Crow Creek 8320 .1 6.5 2 6.2 9.3 67
Deadman Hill 10240 10.7 14.8 72 10.5 15.4 68
Rawah 9100 5.6 10.2 55 9.3 13.8 67
Roach 9710 7.9 14.0 56 11.7 16.2 72
Windy Peak 7890 2.2 6.8 32 7.4 8.4 88
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Basin Index (%) 60 77
S. PLATTE
Crow Creek 8320 .1 6.5 2 6.2 9.3 67
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Basin Index (%) 2 67
LITTLE SNAKE RIVER
Battle Mountain 7460 -M 11.0 * 12.0 13.2 91
Divide Peak 8700 9.0 17.4 52 14.1 19.0 74
Elk River 8710 10.4 16.5 63 15.7 17.0 92
Elkhead Divide 8780 9.7 -M * -M -M *
Little Snake River 8930 17.0 24.0 71 24.3 28.4 86
Old Battle 9840 20.9 26.4 79 26.0 29.7 88
Sage Creek Basin 7830 -M 12.1 * 9.2 11.6 79
Sandstone RS 8150 6.4 11.6 55 12.4 16.2 77
Whiskey Park 8950 19.4 24.4 80 23.4 24.8 94
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Basin Index (%) 69 86
UPPER GREEN RIVER
Big Sandy Opening 9100 9.8 12.0 82 10.2 11.5 89
Blind Bull Sum 8880 22.3 22.1 101 15.7 16.6 95
East Rim Divide 8010 7.3 10.0 73 11.0 10.2 108
Elkhart Park G.S. 9410 10.4 11.2 93 12.8 11.4 112
Gros Ventre Summit 8760 11.8 11.3 104 14.3 11.1 129
Gunsight Pass 9820 12.5 12.1 103 15.1 12.6 120
Indian Creek 9400 19.1 20.7 92 19.4 17.8 109
Kendall R.S. 7790 11.5 11.2 103 16.1 12.3 131
Larsen Creek 8880 4.9 10.4 47 10.5 11.6 91
Loomis Park 8240 11.2 14.2 79 15.4 15.6 99
New Fork Lake 8380 8.2 9.6 85 12.3 9.6 128
Pocket Creek 9370 -M -M * -M -M *
Snider Basin 8080 7.8 12.1 64 13.8 12.7 109
Spring Creek Divide 9020 21.1 22.6 93 23.3 21.8 107
Triple Peak 8520 21.8 21.8 100 25.6 23.2 110
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Basin Index (%) 89 109
LOWER GREEN RIVER
Blacks Fork Jct 8880 5.4 7.8 69 10.1 10.6 95
Buck Pasture 9630 11.0 -M * 14.2 -M *
EF Blacks Fork GS 9360 4.3 10.6 41 9.3 9.8 95
Hams Fork 7860 6.8 10.3 66 11.4 9.5 120
Henrys Fork 10180 -M -M * 10.1 -M *
Hewinta 9510 5.1 9.1 56 10.6 11.9 89
Hickerson Park 9120 4.1 7.2 57 7.5 8.8 85
Hole-in-Rock 9170 3.1 6.6 47 8.1 8.6 94
Indian Creek 9400 19.1 20.7 92 19.4 17.8 109
Kelley R.S. 8240 11.1 13.2 84 16.1 14.5 111
Spirit Lk 10240 9.5 11.2 85 14.2 14.4 99
Steel Creek Park 10140 11.0 13.0 85 13.3 13.8 96
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Basin Index (%) 72 100
UPPER BEAR RIVER
Bear River RS 8510 4.4 8.4 52 9.9 10.2 97
Bug Lake 7980 12.3 16.8 73 18.7 15.8 118
Burts Miller Ranch 7900 .5 4.9 10 10.3 6.6 156
Chalk Creek #1 9160 14.2 20.7 69 19.2 20.6 93
Giveout 6940 2.2 7.8 28 13.5 10.6 127
Hayden Fork 9170 10.0 13.2 76 17.3 18.1 96
Kelley R.S. 8240 11.1 13.2 84 16.1 14.5 111
Lily Lake 9130 6.4 11.2 57 11.7 13.7 85
Monte Cristo 8930 18.1 24.2 75 23.8 22.2 107
Salt River Summit 7630 8.9 12.4 72 15.2 13.8 110
Spring Creek Divide 9020 21.1 22.6 93 23.3 21.8 107
Trial Lake 9970 17.5 19.6 89 19.0 19.8 96
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Basin Index (%) 72 105
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.
