Supercell over Laramie
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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 TUESDAY: OCTOBER 20 , 2026 ------------------------------------------------------------------------------ BASIN ELEV. SNOW WATER EQUIVALENT TOTAL PRECIPITATION Data Site Name (Ft) % % Current Median Median Current Median Med ------------------------------------------------------------------------------ WYOMING SNAKE RIVER Base Camp 7040 .0 .0 * 1.9 1.4 136 Blind Bull Sum 8880 .0 .6 0* 1.6 1.0 160 Cottonwood Creek 7710 .0 .0 * 2.4 1.5 160 East Rim Divide 8010 .0 .0 * 1.9 .6 317 Grand Targhee 9260 .0 2.4 0* 1.9 2.8 68 Granite Creek 6770 .0 .0 * 2.6 1.0 260 Grassy Lake 7330 .0 .0 * 1.4 2.0 70 Gros Ventre Summit 8760 .1 .8 12* 3.7 1.0 370 Gunsight Pass 9820 .2 .2 100* 2.3 1.2 192 Lewis Lake Divide 7880 .0 .0 * 1.5 1.7 88 Loomis Park 8240 .0 .0 * 3.5 1.2 292 Phillips Bench 8170 .1 .0 * 2.3 1.4 164 Salt River Summit 7630 .1 .0 * 1.4 1.0 140 Snake River Station 6900 .0 .0 * 1.3 1.3 100 Somsen Ranch 6830 .1 .0 * 2.0 1.1 182 Spring Creek Divide 9020 .8 .5 160* 2.4 1.2 200 Thumb Divide 7970 .1 .0 * 1.5 1.3 115 Togwotee Pass 9590 .1 1.4 7* 2.2 2.0 110 Triple Peak 8520 .0 .2 0* 1.9 1.2 158 Two Ocean Plateau 9240 .6 2.0 30* 1.7 1.6 106 Willow Creek 8060 .1 .0 * 2.2 2.2 100 Younts Peak 8340 .4 .5 80* 2.7 1.1 245 ----- ----- Basin Index (%) 31* 150 MADISON HEADWATERS IN WYOMING Black Bear 8160 .1 1.6 6* 1.2 2.4 50 Canyon 7870 .1 .2 50* 1.3 1.4 93 Madison Plateau 7710 .1 .6 17* 1.4 1.8 78 West Yellowstone 6680 .1 .0 * 1.4 1.0 140 Whiskey Creek 6790 .1 .0 * 1.6 1.2 133 ----- ----- Basin Index (%) 21* 88 YELLOWSTONE HEADWATERS IN WYOMING Beartooth Lake 9360 .4 1.4 29* .7 1.4 50 Canyon 7870 .1 .2 50* 1.3 1.4 93 Evening Star 9030 .1 1.2 8* 1.3 2.1 62 Fisher Creek 9110 .8 1.4 57* 1.8 1.9 95 Monument Peak 8740 1.1 1.1 100* 1.8 1.7 106 Northeast Entrance 7420 .0 .0 * 1.0 1.0 100 Parker Peak 9420 .0 1.2 0* .7 1.8 39 Sylvan Lake 8440 .0 .8 0* 1.6 2.0 80 Thumb Divide 7970 .1 .0 * 1.5 1.3 115 Two Ocean Plateau 9240 .6 2.0 30* 1.7 1.6 106 White Mill 8730 .5 1.0 50* 1.4 1.4 100 Wolverine 7660 .0 .0 * .8 1.3 62 ----- ----- Basin Index (%) 36* 83 WIND RIVER Burroughs Creek 8760 .0 -M * 2.8 -M * Castle Creek 8410 .0 .0 * 1.9 .9 211 Cold Springs 9640 .0 .0 * 1.8 1.0 180 Deer Park 9690 .1 .7 14* 3.8 1.4 271 Hobbs Park 10080 .4 .9 44* 2.0 1.2 167 Kirwin 9580 .0 1.0 0* 1.9 1.2 158 Little Warm 9370 .0 .4 0* 2.2 1.2 183 South Pass 9040 .0 .2 0* 2.4 1.1 218 St. Lawrence Alt 8610 .2 -M * 1.4 -M * Togwotee Pass 9590 .1 1.4 7* 2.2 2.0 110 Townsend Creek 8720 .2 .0 * 2.2 1.2 183 ----- ----- Basin Index (%) 17* 182 BIGHORN BASIN Bald Mtn. 9360 .2 2.0 10* 1.9 1.8 106 Bear Trap Meadow 8200 .1 .1 100* 1.1 1.2 92 Bone Springs Div 9340 .0 1.4 0* 1.3 1.8 72 Grave Springs 8560 .1 .2 50* 1.7 1.0 170 Kirwin 9580 .0 1.0 0* 1.9 1.2 158 Marquette 8800 .1 .2 50* 1.0 1.4 71 Middle Powder 7760 .0 .2 0* 1.3 1.3 100 Owl Creek 8990 .0 .1 0* 1.4 1.0 140 Powder River Pass 9480 .1 .8 12* 1.5 1.4 107 Shell Creek 9570 .0 1.8 0 1.4 1.6 88 Timber Creek 7910 .0 .0 * 1.2 1.2 100 ----- ----- Basin Index (%) 8* 105 SHOSHONE RIVER Blackwater 9830 .4 1.6 25* 1.9 1.9 100 Evening Star 9030 .1 1.2 8* 1.3 2.1 62 Marquette 8800 .1 .2 50* 1.0 1.4 71 Sylvan Lake 8440 .0 .8 0* 1.6 2.0 80 Sylvan Road 7140 .0 .0 * 1.4 1.4 100 Younts Peak 8340 .4 .5 80* 2.7 1.1 245 ----- ----- Basin Index (%) 23* 100 POWDER RIVER Bear Trap Meadow 8200 .1 .1 100* 1.1 1.2 92 Cloud Peak Reservoir 9830 .0 .9 0* 1.0 1.8 56 Grave Springs 8560 .1 .2 50* 1.7 1.0 170 Hanson Sawmill 8360 .1 .0 * .8 1.2 67 Middle Powder 7760 .0 .2 0* 1.3 1.3 100 Powder River Pass 9480 .1 .8 12* 1.5 1.4 107 Soldier Park 8680 .0 .0 * .7 1.3 54 ----- ----- Basin Index (%) 18* 88 TONGUE RIVER Big Goose 8010 .0 .2 0* .8 1.4 57 Bone Springs Div 9340 .0 1.4 0* 1.3 1.8 72 Burgess Junction 7910 .1 .5 20* .9 1.4 64 Dome Lake 8890 .0 .8 0* 1.2 1.5 80 Little Goose 8560 .1 .0 * .8 1.5 53 Sucker Creek 8840 .1 .8 12* .7 1.5 47 Tie Creek 7050 .1 .0 * .8 1.2 67 ----- ----- Basin Index (%) 11* 63 BELLE FOURCHE Blind Park 6900 .1 .0 * .4 1.1 36 Cole Canyon 5930 .0 .0 * .6 1.0 60 North Rapid Creek 6150 .1 .0 * .4 .9 44 ----- ----- Basin Index (%) * 47 CHEYENNE RIVER BASIN Blind Park 6900 .1 .0 * .4 1.1 36 North Rapid Creek 6150 .1 .0 * .4 .9 44 ----- ----- Basin Index (%) * 40 UPPER N. PLATTE Arapaho Ridge 10960 .6 1.0 60* 2.0 1.6 125 Blackhall Mtn 9830 .0 1.2 0* 2.0 2.4 83 Cinnabar Park 9670 .0 .5 0* 1.2 1.5 80 Columbine 9170 .6 .0 * 1.9 1.8 106 Divide Peak 8700 .3 .2 150* 2.8 1.8 156 Joe Wright 10140 .2 .4 50* .9 2.3 39 Laprele Creek 8370 .3 .0 * 1.3 1.0 130 Med Bow 10500 .4 -M * 1.4 -M * Never Summer 10300 2.5 1.0 250* .9 1.8 50 North French Creek 10150 1.3 .8 162* 1.2 2.0 60 Old Battle 9840 .2 1.2 17* 3.6 2.3 157 Rawah 9100 .0 .0 * 1.5 1.6 94 Sage Creek Basin 7830 .1 .0 * 2.8 1.1 255 Sand Lake 10080 1.5 1.4 107* 1.8 1.7 106 South Brush Creek 8480 .0 .0 * 1.0 1.0 100 Tower 10610 .3 1.0 30* 2.7 2.3 117 Webber Springs 9250 .2 .4 50* 3.3 1.8 183 Whiskey Park 8950 .0 .2 0* 1.8 1.8 100 Willow Creek Pass 9520 .6 .2 300* 1.0 1.2 83 Zirkel 9320 .1 .0 * 1.6 2.2 73 ----- ----- Basin Index (%) 93* 106 SWEETWATER Deer Park 9690 .1 .7 14* 3.8 1.4 271 Larsen Creek 8880 .0 .0 * 2.4 .8 300 South Pass 9040 .0 .2 0* 2.4 1.1 218 ----- ----- Basin Index (%) 11* 261 LOWER N. PLATTE Casper Mtn. 7940 .1 .0 * 1.6 1.2 133 Laprele Creek 8370 .3 .0 * 1.3 1.0 130 Reno Hill 8410 .5 .6 83* 1.9 1.3 146 Windy Peak 7890 .0 .0 * 1.2 1.0 120 ----- ----- Basin Index (%) 150* 133 LARAMIE RIVER Brooklyn Lake 10250 .2 .2 100* 1.6 1.0 160 Cinnabar Park 9670 .0 .5 0* 1.2 1.5 80 Crow Creek 8320 1.2 .0 * 1.4 1.0 140 Deadman Hill 10240 .8 1.2 67* 1.3 1.3 100 Rawah 9100 .0 .0 * 1.5 1.6 94 Roach 9710 .1 .5 20* 1.4 1.2 117 Windy Peak 7890 .0 .0 * 1.2 1.0 120 ----- ----- Basin Index (%) 96* 112 S. PLATTE Crow Creek 8320 1.2 .0 * 1.4 1.0 140 ----- ----- Basin Index (%) * 140 LITTLE SNAKE RIVER Battle Mountain 7460 .0 .0 * 2.0 1.2 167 Divide Peak 8700 .3 .2 150* 2.8 1.8 156 Elk River 8710 .2 .0 * 2.2 1.4 157 Elkhead Divide 8780 .0 -M * 2.7 -M * Little Snake River 8930 .1 .0 * 2.1 2.6 81 Old Battle 9840 .2 1.2 17* 3.6 2.3 157 Sage Creek Basin 7830 .1 .0 * 2.8 1.1 255 Sandstone RS 8150 .0 .0 * 1.8 1.2 150 Whiskey Park 8950 .0 .2 0* 1.8 1.8 100 ----- ----- Basin Index (%) 56* 143 UPPER GREEN RIVER Big Sandy Opening 9100 .2 .6 33* 2.4 1.2 200 Blind Bull Sum 8880 .0 .6 0* 1.6 1.0 160 East Rim Divide 8010 .0 .0 * 1.9 .6 317 Elkhart Park G.S. 9410 .1 .4 25* .8 1.4 57 Gros Ventre Summit 8760 .1 .8 12* 3.7 1.0 370 Gunsight Pass 9820 .2 .2 100* 2.3 1.2 192 Indian Creek 9400 .0 .7 0* 1.8 1.4 129 Kendall R.S. 7790 .1 .0 * 2.7 .8 338 Larsen Creek 8880 .0 .0 * 2.4 .8 300 Loomis Park 8240 .0 .0 * 3.5 1.2 292 New Fork Lake 8380 .0 .0 * 2.2 .7 314 Pocket Creek 9370 -M -M * -M -M * Snider Basin 8080 .0 .0 * 2.5 .8 312 Spring Creek Divide 9020 .8 .5 160* 2.4 1.2 200 Triple Peak 8520 .0 .2 0* 1.9 1.2 158 ----- ----- Basin Index (%) 38* 221 LOWER GREEN RIVER Blacks Fork Jct 8880 .0 -M * 1.1 -M * Buck Pasture 9630 .0 -M * 2.7 -M * EF Blacks Fork GS 9360 .0 -M * 1.5 -M * Hams Fork 7860 .0 .0 * 1.5 .9 167 Henrys Fork 10180 -M -M * 2.8 -M * Hewinta 9510 .0 .0 * 1.5 1.2 125 Hickerson Park 9120 .0 .0 * 1.8 .9 200 Hole-in-Rock 9170 .0 .0 * 2.1 1.0 210 Indian Creek 9400 .0 .7 0* 1.8 1.4 129 Kelley R.S. 8240 .1 .0 * 1.4 1.0 140 Spirit Lk 10240 .0 .0 * 5.3 1.4 379 Steel Creek Park 10140 .0 .6 0* 2.1 1.2 175 ----- ----- Basin Index (%) 8* 194 UPPER BEAR RIVER Bear River RS 8510 .0 .0 * 1.5 .8 188 Bug Lake 7980 .0 .0 * 2.1 1.1 191 Burts Miller Ranch 7900 .0 .0 * 1.2 .6 200 Chalk Creek #1 9160 .0 .0 * 3.8 1.4 271 Giveout 6940 .0 .0 * 1.9 .9 211 Hayden Fork 9170 .0 .0 * 2.8 1.4 200 Kelley R.S. 8240 .1 .0 * 1.4 1.0 140 Lily Lake 9130 .0 .0 * 1.5 1.2 125 Monte Cristo 8930 .0 .0 * 2.6 1.4 186 Salt River Summit 7630 .1 .0 * 1.4 1.0 140 Spring Creek Divide 9020 .8 .5 160* 2.4 1.2 200 Trial Lake 9970 .0 .0 * 3.0 1.4 214 ----- ----- Basin Index (%) 200* 191 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.