Supercell over Laramie
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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: DECEMBER 20 , 2025 ------------------------------------------------------------------------------ BASIN ELEV. SNOW WATER EQUIVALENT TOTAL PRECIPITATION Data Site Name (Ft) % % Current Median Median Current Median Med ------------------------------------------------------------------------------ WYOMING SNAKE RIVER Base Camp 7040 5.3 5.7 93 10.8 8.8 123 Blind Bull Sum 8880 10.0 7.8 128 7.8 7.4 105 Cottonwood Creek 7710 8.4 7.3 115 13.1 9.0 146 East Rim Divide 8010 3.0 3.6 83 5.9 4.4 134 Grand Targhee 9260 -M 17.0 * -M 13.6 * Granite Creek 6770 4.7 4.8 98 9.8 7.6 129 Grassy Lake 7330 6.8 9.8 69 12.3 12.6 98 Gros Ventre Summit 8760 5.4 4.8 112 7.3 5.5 133 Gunsight Pass 9820 6.4 4.8 133 8.9 5.8 153 Lewis Lake Divide 7880 9.8 10.0 98 16.2 12.4 131 Loomis Park 8240 5.3 5.1 104 8.0 6.4 125 Phillips Bench 8170 8.1 8.2 99 12.2 9.6 127 Salt River Summit 7630 4.9 3.8 129 7.8 5.7 137 Snake River Station 6900 4.1 5.4 76 9.7 9.2 105 Somsen Ranch 6830 2.7 3.4 79 7.8 6.6 118 Spring Creek Divide 9020 -M 7.8 * -M 8.6 * Thumb Divide 7970 4.7 5.0 94 8.2 7.3 112 Togwotee Pass 9590 10.2 9.6 106 14.5 9.8 148 Triple Peak 8520 10.3 7.6 136 13.3 9.1 146 Two Ocean Plateau 9240 13.3 11.2 119 13.7 10.8 127 Willow Creek 8060 8.6 9.1 95 14.8 12.7 117 Younts Peak 8340 6.2 5.6 111 11.6 6.1 190 ----- ----- Basin Index (%) 104 128 MADISON HEADWATERS IN WYOMING Black Bear 8160 9.0 13.0 69 12.6 14.2 89 Canyon 7870 3.4 4.6 74 7.1 6.2 115 Madison Plateau 7710 4.6 7.4 62 9.5 10.1 94 West Yellowstone 6680 2.1 3.6 58 5.9 5.8 102 Whiskey Creek 6790 3.3 4.8 69 8.3 7.8 106 ----- ----- Basin Index (%) 67 98 YELLOWSTONE HEADWATERS IN WYOMING Beartooth Lake 9360 10.5 8.4 125 12.0 8.0 150 Canyon 7870 3.4 4.6 74 7.1 6.2 115 Evening Star 9030 13.9 10.2 136 18.4 12.2 151 Fisher Creek 9110 15.3 12.6 121 17.8 12.6 141 Monument Peak 8740 9.6 7.8 123 12.9 9.1 142 Northeast Entrance 7420 3.7 2.8 132 8.7 5.6 155 Parker Peak 9420 10.7 8.4 127 12.0 8.6 140 Sylvan Lake 8440 5.9 7.4 80 11.7 10.0 117 Thumb Divide 7970 4.7 5.0 94 8.2 7.3 112 Two Ocean Plateau 9240 13.3 11.2 119 13.7 10.8 127 White Mill 8730 12.8 9.2 139 13.8 9.0 153 Wolverine 7660 3.8 4.2 90 9.1 5.4 169 ----- ----- Basin Index (%) 117 139 WIND RIVER Burroughs Creek 8760 4.5 -M * 10.2 -M * Castle Creek 8410 2.5 3.0 83 4.8 4.1 117 Cold Springs 9640 2.7 3.1 87 6.8 4.2 162 Deer Park 9690 5.8 5.0 116 7.4 6.7 110 Hobbs Park 10080 4.1 5.4 76 5.8 5.1 114 Kirwin 9580 5.8 4.7 123 9.9 5.2 190 Little Warm 9370 4.6 3.7 124 7.6 5.3 143 South Pass 9040 4.9 5.2 94 6.4 6.4 100 St. Lawrence Alt 8610 1.0 -M * 3.4 -M * Togwotee Pass 9590 10.2 9.6 106 14.5 9.8 148 Townsend Creek 8720 1.6 3.2 50 4.5 5.0 90 ----- ----- Basin Index (%) 98 131 BIGHORN BASIN Bald Mtn. 9360 8.2 7.2 114 9.6 6.6 145 Bear Trap Meadow 8200 1.8 2.4 75 5.9 3.8 155 Bone Springs Div 9340 6.1 6.3 97 7.0 6.2 113 Grave Springs 8560 1.6 2.6 62 5.4 3.9 138 Kirwin 9580 5.8 4.7 123 9.9 5.2 190 Marquette 8800 .5 3.2 16 3.8 4.2 90 Middle Powder 7760 2.1 3.4 62 6.2 4.6 135 Owl Creek 8990 .7 2.2 32 3.3 2.9 114 Powder River Pass 9480 6.2 4.4 141 9.9 5.3 187 Shell Creek 9570 6.4 6.6 97 8.6 5.8 148 Timber Creek 7910 .1 1.9 5 2.4 3.8 63 ----- ----- Basin Index (%) 88 138 SHOSHONE RIVER Blackwater 9830 10.1 9.4 107 12.2 9.0 136 Evening Star 9030 13.9 10.2 136 18.4 12.2 151 Marquette 8800 .5 3.2 16 3.8 4.2 90 Sylvan Lake 8440 5.9 7.4 80 11.7 10.0 117 Sylvan Road 7140 3.6 4.6 78 9.6 7.6 126 Younts Peak 8340 6.2 5.6 111 11.6 6.1 190 ----- ----- Basin Index (%) 100 137 POWDER RIVER Bear Trap Meadow 8200 1.8 2.4 75 5.9 3.8 155 Cloud Peak Reservoir 9830 5.3 5.3 100 7.1 5.7 125 Grave Springs 8560 1.6 2.6 62 5.4 3.9 138 Hansen Sawmill 8360 1.8 2.6 69 6.7 3.8 176 Middle Powder 7760 2.1 3.4 62 6.2 4.6 135 Powder River Pass 9480 6.2 4.4 141 9.9 5.3 187 Soldier Park 8680 1.1 2.0 55 4.5 3.9 115 ----- ----- Basin Index (%) 88 147 TONGUE RIVER Big Goose 8010 1.6 2.9 55 5.2 4.4 118 Bone Springs Div 9340 6.1 6.3 97 7.0 6.2 113 Burgess Junction 7910 2.5 3.6 69 5.5 5.0 110 Dome Lake 8890 2.6 3.9 67 6.8 5.4 126 Little Goose 8560 2.3 3.4 68 5.9 5.2 113 Sucker Creek 8840 3.0 4.6 65 6.6 5.6 118 Tie Creek 7050 .6 1.4 43 4.8 4.6 104 ----- ----- Basin Index (%) 72 115 BELLE FOURCHE Blind Park 6900 2.3 2.4 96 7.8 4.5 173 Cole Canyon 5930 1.7 1.6 106 6.9 3.5 197 North Rapid Creek 6150 1.4 2.6 54 5.6 3.4 165 ----- ----- Basin Index (%) 82 178 CHEYENNE RIVER BASIN Blind Park 6900 2.3 2.4 96 7.8 4.5 173 North Rapid Creek 6150 1.4 2.6 54 5.6 3.4 165 ----- ----- Basin Index (%) 74 170 UPPER N. PLATTE Arapaho Ridge 10960 5.2 8.2 63 6.8 8.8 77 Blackhall Mtn 9830 6.2 10.1 61 9.2 11.7 79 Cinnabar Park 9670 5.5 7.1 77 8.4 8.8 95 Columbine 9170 5.9 6.8 87 8.3 8.9 93 Divide Peak 8700 3.6 6.4 56 6.8 8.6 79 Joe Wright 10140 3.3 7.2 46 8.0 10.1 79 Laprele Creek 8370 1.8 2.8 64 5.5 4.7 117 Med Bow 10500 12.0 -M * 13.8 -M * Never Summer 10300 4.6 6.9 67 3.6 6.8 53 North French Creek 10150 9.1 9.5 96 11.4 9.7 118 Old Battle 9840 8.0 10.2 78 13.4 12.7 106 Rawah 9100 1.8 4.0 45 4.0 6.8 59 Sage Creek Basin 7830 2.2 4.2 52 4.7 5.5 85 Sand Lake 10080 7.1 9.4 76 9.2 9.5 97 South Brush Creek 8480 2.5 3.8 66 4.7 5.4 87 Tower 10610 9.0 14.0 64 11.7 15.3 76 Webber Springs 9250 5.6 7.6 74 9.0 10.0 90 Whiskey Park 8950 6.8 8.2 83 12.0 10.6 113 Willow Creek Pass 9520 2.0 5.0 40 4.0 5.6 71 Zirkel 9320 7.9 7.8 101 11.5 11.0 105 ----- ----- Basin Index (%) 70 89 SWEETWATER Deer Park 9690 5.8 5.0 116 7.4 6.7 110 Larsen Creek 8880 1.6 2.6 62 5.4 4.8 112 South Pass 9040 4.9 5.2 94 6.4 6.4 100 ----- ----- Basin Index (%) 96 107 LOWER N. PLATTE Casper Mtn. 7940 1.0 4.6 22 4.0 5.8 69 Laprele Creek 8370 1.8 2.8 64 5.5 4.7 117 Reno Hill 8410 1.3 5.0 26 4.9 5.6 88 Windy Peak 7890 .8 2.6 31 4.3 4.2 102 ----- ----- Basin Index (%) 33 92 LARAMIE RIVER Brooklyn Lake 10250 6.2 6.8 91 9.1 7.4 123 Cinnabar Park 9670 5.5 7.1 77 8.4 8.8 95 Crow Creek 8320 .3 3.2 9 3.0 4.3 70 Deadman Hill 10240 4.1 6.4 64 4.6 6.7 69 Rawah 9100 1.8 4.0 45 4.0 6.8 59 Roach 9710 3.3 5.5 60 5.6 7.4 76 Windy Peak 7890 .8 2.6 31 4.3 4.2 102 ----- ----- Basin Index (%) 62 86 S. PLATTE Crow Creek 8320 .3 3.2 9 3.0 4.3 70 ----- ----- Basin Index (%) 9 70 LITTLE SNAKE RIVER Battle Mountain 7460 1.7 3.3 52 6.2 5.8 107 Divide Peak 8700 3.6 6.4 56 6.8 8.6 79 Elk River 8710 3.9 5.3 74 8.1 7.0 116 Elkhead Divide 8780 3.4 -M * 7.4 -M * Little Snake River 8930 6.6 7.6 87 12.0 12.4 97 Old Battle 9840 8.0 10.2 78 13.4 12.7 106 Sage Creek Basin 7830 2.2 4.2 52 4.7 5.5 85 Sandstone RS 8150 3.2 4.0 80 6.3 7.0 90 Whiskey Park 8950 6.8 8.2 83 12.0 10.6 113 ----- ----- Basin Index (%) 73 100 UPPER GREEN RIVER Big Sandy Opening 9100 4.2 4.6 91 4.8 4.8 100 Blind Bull Sum 8880 10.0 7.8 128 7.8 7.4 105 East Rim Divide 8010 3.0 3.6 83 5.9 4.4 134 Elkhart Park G.S. 9410 4.6 4.3 107 6.2 5.5 113 Gros Ventre Summit 8760 5.4 4.8 112 7.3 5.5 133 Gunsight Pass 9820 6.4 4.8 133 8.9 5.8 153 Indian Creek 9400 8.4 7.7 109 9.8 7.6 129 Kendall R.S. 7790 4.9 4.2 117 8.4 5.4 156 Larsen Creek 8880 1.6 2.6 62 5.4 4.8 112 Loomis Park 8240 5.3 5.1 104 8.0 6.4 125 New Fork Lake 8380 4.5 3.8 118 7.2 4.4 164 Pocket Creek 9370 -M -M * -M -M * Snider Basin 8080 3.8 4.1 93 7.0 5.3 132 Spring Creek Divide 9020 -M 7.8 * -M 8.6 * Triple Peak 8520 10.3 7.6 136 13.3 9.1 146 ----- ----- Basin Index (%) 111 131 LOWER GREEN RIVER Blacks Fork Jct 8880 2.9 2.7 107 4.8 5.0 96 Buck Pasture 9630 4.7 -M * 6.7 -M * EF Blacks Fork GS 9360 2.1 3.2 66 4.8 4.8 100 Hams Fork 7860 4.5 3.6 125 6.1 4.6 133 Henrys Fork 10180 -M -M * 5.4 -M * Hewinta 9510 1.5 2.9 52 5.4 5.8 93 Hickerson Park 9120 .9 2.2 41 4.0 4.6 87 Hole-in-Rock 9170 1.0 2.3 43 4.7 4.4 107 Indian Creek 9400 8.4 7.7 109 9.8 7.6 129 Kelley R.S. 8240 5.0 4.6 109 8.9 6.2 144 Spirit Lk 10240 3.9 4.5 87 7.8 7.1 110 Steel Creek Park 10140 4.5 5.2 87 6.6 6.6 100 ----- ----- Basin Index (%) 89 111 UPPER BEAR RIVER Bear River RS 8510 1.3 2.7 48 4.2 5.0 84 Bug Lake 7980 3.7 5.2 71 8.6 6.8 126 Burts Miller Ranch 7900 1.0 2.1 48 4.6 3.3 139 Chalk Creek #1 9160 3.8 7.8 49 7.9 9.2 86 Giveout 6940 2.5 2.6 96 6.8 5.0 136 Hayden Fork 9170 2.7 4.4 61 7.1 7.8 91 Kelley R.S. 8240 5.0 4.6 109 8.9 6.2 144 Lily Lake 9130 2.5 4.4 57 4.8 6.5 74 Monte Cristo 8930 5.1 7.8 65 10.2 9.3 110 Salt River Summit 7630 4.9 3.8 129 7.8 5.7 137 Spring Creek Divide 9020 -M 7.8 * -M 8.6 * Trial Lake 9970 6.2 6.4 97 7.3 8.1 90 ----- ----- Basin Index (%) 75 107 ---------------------------------------------------------------------------- -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.