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 SUNDAY: OCTOBER 18 , 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 * 1.8 1.2 150 Blind Bull Sum 8880 .1 .3 33* 1.3 1.0 130 Cottonwood Creek 7710 .0 .0 * 2.0 1.4 143 East Rim Divide 8010 .0 .0 * 1.9 .6 317 Grand Targhee 9260 .4 2.4 17* 1.9 2.6 73 Granite Creek 6770 .0 .0 * 2.4 .8 300 Grassy Lake 7330 .0 .0 * 1.3 1.8 72 Gros Ventre Summit 8760 .0 .6 0* 3.7 1.0 370 Gunsight Pass 9820 .4 .0 * 2.2 1.1 200 Lewis Lake Divide 7880 .0 .0 * 1.5 1.6 94 Loomis Park 8240 .0 .0 * 2.9 .9 322 Phillips Bench 8170 .0 .0 * 2.2 1.3 169 Salt River Summit 7630 .1 .0 * 1.3 .8 162 Snake River Station 6900 .0 .0 * 1.2 1.0 120 Somsen Ranch 6830 .1 .0 * 2.0 .9 222 Spring Creek Divide 9020 .8 .2 400* 2.3 1.0 230 Thumb Divide 7970 .1 .0 * 1.5 1.2 125 Togwotee Pass 9590 .0 1.4 0* 2.3 1.4 164 Triple Peak 8520 .0 .2 0* 1.8 1.2 150 Two Ocean Plateau 9240 .4 1.8 22* 1.7 1.6 106 Willow Creek 8060 .0 .0 * 2.2 2.0 110 Younts Peak 8340 .3 .2 150* 2.6 1.0 260 ----- ----- Basin Index (%) 38* 161 MADISON HEADWATERS IN WYOMING Black Bear 8160 .1 1.2 8* 1.3 2.1 62 Canyon 7870 .1 .1 100* 1.3 1.2 108 Madison Plateau 7710 .1 .4 25* 1.4 1.7 82 West Yellowstone 6680 .1 .0 * 1.4 .8 175 Whiskey Creek 6790 .1 .0 * 1.6 1.2 133 ----- ----- Basin Index (%) 29* 100 YELLOWSTONE HEADWATERS IN WYOMING Beartooth Lake 9360 .4 1.2 33* .7 1.3 54 Canyon 7870 .1 .1 100* 1.3 1.2 108 Evening Star 9030 .1 1.0 10* 1.3 2.0 65 Fisher Creek 9110 .8 1.4 57* 1.8 1.8 100 Monument Peak 8740 1.1 1.0 110* 1.8 1.6 112 Northeast Entrance 7420 .0 .0 * 1.0 .8 125 Parker Peak 9420 .0 1.2 0* .7 1.6 44 Sylvan Lake 8440 .0 .6 0* 1.6 1.8 89 Thumb Divide 7970 .1 .0 * 1.5 1.2 125 Two Ocean Plateau 9240 .4 1.8 22* 1.7 1.6 106 White Mill 8730 .6 1.1 55* 1.4 1.4 100 Wolverine 7660 .0 .0 * .8 1.2 67 ----- ----- Basin Index (%) 38* 89 WIND RIVER Burroughs Creek 8760 .0 -M * 2.8 -M * Castle Creek 8410 .0 .0 * 1.8 .8 225 Cold Springs 9640 .1 .0 * 1.8 .8 225 Deer Park 9690 .1 .3 33* 3.8 1.3 292 Hobbs Park 10080 .6 .8 75* 2.0 1.0 200 Kirwin 9580 .0 .8 0* 1.9 1.2 158 Little Warm 9370 .0 .3 0* 2.2 1.0 220 South Pass 9040 .0 .0 * 2.4 1.1 218 St. Lawrence Alt 8610 .2 -M * 1.4 -M * Togwotee Pass 9590 .0 1.4 0* 2.3 1.4 164 Townsend Creek 8720 .2 .0 * 2.2 1.0 220 ----- ----- Basin Index (%) 28* 212 BIGHORN BASIN Bald Mtn. 9360 .2 2.0 10* 1.9 1.7 112 Bear Trap Meadow 8200 .1 .2 50* 1.1 1.1 100 Bone Springs Div 9340 .0 1.3 0* 1.4 1.7 82 Grave Springs 8560 .1 .2 50* 1.7 1.0 170 Kirwin 9580 .0 .8 0* 1.9 1.2 158 Marquette 8800 .1 .3 33* 1.0 1.3 77 Middle Powder 7760 .0 .2 0* 1.3 1.2 108 Owl Creek 8990 .0 .2 0* 1.3 1.0 130 Powder River Pass 9480 .1 .7 14* 1.4 1.4 100 Shell Creek 9570 .0 1.8 0 1.4 1.4 100 Timber Creek 7910 .0 .0 * 1.2 1.2 100 ----- ----- Basin Index (%) 8* 110 SHOSHONE RIVER Blackwater 9830 .5 1.5 33* 1.8 1.8 100 Evening Star 9030 .1 1.0 10* 1.3 2.0 65 Marquette 8800 .1 .3 33* 1.0 1.3 77 Sylvan Lake 8440 .0 .6 0* 1.6 1.8 89 Sylvan Road 7140 .0 .0 * 1.4 1.3 108 Younts Peak 8340 .3 .2 150* 2.6 1.0 260 ----- ----- Basin Index (%) 28* 105 POWDER RIVER Bear Trap Meadow 8200 .1 .2 50* 1.1 1.1 100 Cloud Peak Reservoir 9830 .0 .9 0* 1.0 1.7 59 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 1.2 108 Powder River Pass 9480 .1 .7 14* 1.4 1.4 100 Soldier Park 8680 .0 .0 * .7 1.2 58 ----- ----- Basin Index (%) 18* 91 TONGUE RIVER Big Goose 8010 .0 .4 0* .8 1.3 62 Bone Springs Div 9340 .0 1.3 0* 1.4 1.7 82 Burgess Junction 7910 .1 .4 25* 1.0 1.3 77 Dome Lake 8890 .1 .7 14* 1.2 1.5 80 Little Goose 8560 .1 .0 * .9 1.4 64 Sucker Creek 8840 .1 .8 12* .8 1.4 57 Tie Creek 7050 .1 .0 * .8 1.1 73 ----- ----- Basin Index (%) 14* 71 BELLE FOURCHE Blind Park 6900 .1 .0 * .5 1.1 45 Cole Canyon 5930 .0 .0 * .5 1.0 50 North Rapid Creek 6150 .1 .0 * .3 .9 33 ----- ----- Basin Index (%) * 43 CHEYENNE RIVER BASIN Blind Park 6900 .1 .0 * .5 1.1 45 North Rapid Creek 6150 .1 .0 * .3 .9 33 ----- ----- Basin Index (%) * 40 UPPER N. PLATTE Arapaho Ridge 10960 .7 1.0 70* 2.0 1.6 125 Blackhall Mtn 9830 .4 .8 50* 2.0 2.0 100 Cinnabar Park 9670 .0 .3 0* 1.3 1.2 108 Columbine 9170 .6 .0 * 1.7 1.8 94 Divide Peak 8700 .5 .2 250* 2.8 1.6 175 Joe Wright 10140 .2 .4 50* .9 2.2 41 Laprele Creek 8370 .3 .0 * 1.3 .9 144 Med Bow 10500 .4 -M * 1.4 -M * Never Summer 10300 2.7 .8 338* .8 1.7 47 North French Creek 10150 1.5 .6 250* 1.2 1.8 67 Old Battle 9840 -M .8 * -M 1.8 * Rawah 9100 .4 .0 * 1.4 1.6 88 Sage Creek Basin 7830 .4 .0 * 2.8 1.1 255 Sand Lake 10080 1.6 1.1 145* 1.8 1.6 112 South Brush Creek 8480 .0 .0 * 1.0 .9 111 Tower 10610 .8 .8 100* 2.6 2.0 130 Webber Springs 9250 .2 .2 100* 3.4 1.6 212 Whiskey Park 8950 .0 .0 * 1.8 1.8 100 Willow Creek Pass 9520 .8 .2 400* 1.0 1.0 100 Zirkel 9320 .2 .0 * 1.6 2.2 73 ----- ----- Basin Index (%) 177* 110 SWEETWATER Deer Park 9690 .1 .3 33* 3.8 1.3 292 Larsen Creek 8880 .1 .0 * 2.4 .8 300 South Pass 9040 .0 .0 * 2.4 1.1 218 ----- ----- Basin Index (%) 67* 269 LOWER N. PLATTE Casper Mtn. 7940 .2 .2 100* 1.7 1.0 170 Laprele Creek 8370 .3 .0 * 1.3 .9 144 Reno Hill 8410 1.0 .4 250* 1.9 1.2 158 Windy Peak 7890 .0 .0 * 1.2 .7 171 ----- ----- Basin Index (%) 250* 161 LARAMIE RIVER Brooklyn Lake 10250 .2 .0 * 1.6 1.0 160 Cinnabar Park 9670 .0 .3 0* 1.3 1.2 108 Crow Creek 8320 1.4 .0 * 1.4 .8 175 Deadman Hill 10240 1.0 1.0 100* 1.3 1.2 108 Rawah 9100 .4 .0 * 1.4 1.6 88 Roach 9710 .4 .3 133* 1.4 1.1 127 Windy Peak 7890 .0 .0 * 1.2 .7 171 ----- ----- Basin Index (%) 212* 126 S. PLATTE Crow Creek 8320 1.4 .0 * 1.4 .8 175 ----- ----- Basin Index (%) * 175 LITTLE SNAKE RIVER Battle Mountain 7460 .2 .0 * 1.9 1.0 190 Divide Peak 8700 .5 .2 250* 2.8 1.6 175 Elk River 8710 .2 .0 * 2.2 1.4 157 Elkhead Divide 8780 .0 -M * 2.6 -M * Little Snake River 8930 .1 .0 * 2.0 2.3 87 Old Battle 9840 -M .8 * -M 1.8 * Sage Creek Basin 7830 .4 .0 * 2.8 1.1 255 Sandstone RS 8150 .0 .0 * 1.8 1.1 164 Whiskey Park 8950 .0 .0 * 1.8 1.8 100 ----- ----- Basin Index (%) 700* 149 UPPER GREEN RIVER Big Sandy Opening 9100 .0 .4 0* 2.3 1.0 230 Blind Bull Sum 8880 .1 .3 33* 1.3 1.0 130 East Rim Divide 8010 .0 .0 * 1.9 .6 317 Elkhart Park G.S. 9410 .1 .0 * 1.0 1.2 83 Gros Ventre Summit 8760 .0 .6 0* 3.7 1.0 370 Gunsight Pass 9820 .4 .0 * 2.2 1.1 200 Indian Creek 9400 .2 .4 50* 1.7 1.0 170 Kendall R.S. 7790 .0 .0 * 2.6 .8 325 Larsen Creek 8880 .1 .0 * 2.4 .8 300 Loomis Park 8240 .0 .0 * 2.9 .9 322 New Fork Lake 8380 .0 .0 * 2.1 .7 300 Pocket Creek 9370 -M -M * -M -M * Snider Basin 8080 .0 .0 * 2.2 .6 367 Spring Creek Divide 9020 .8 .2 400* 2.3 1.0 230 Triple Peak 8520 .0 .2 0* 1.8 1.2 150 ----- ----- Basin Index (%) 81* 236 LOWER GREEN RIVER Blacks Fork Jct 8880 .1 -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 * 1.6 .6 267 Henrys Fork 10180 -M -M * 2.6 -M * Hewinta 9510 .0 .0 * 1.5 1.0 150 Hickerson Park 9120 .0 .0 * 1.8 .7 257 Hole-in-Rock 9170 .0 .0 * 2.1 .9 233 Indian Creek 9400 .2 .4 50* 1.7 1.0 170 Kelley R.S. 8240 .0 .0 * 1.3 .7 186 Spirit Lk 10240 .5 .0 * 5.3 1.1 482 Steel Creek Park 10140 .3 .4 75* 2.1 1.0 210 ----- ----- Basin Index (%) 125* 249 UPPER BEAR RIVER Bear River RS 8510 .0 .0 * 1.5 .8 188 Bug Lake 7980 .0 .0 * 2.1 .7 300 Burts Miller Ranch 7900 .0 .0 * 1.2 .6 200 Chalk Creek #1 9160 .1 .0 * 3.7 1.3 285 Giveout 6940 .0 .0 * 1.8 .8 225 Hayden Fork 9170 .0 .0 * 2.8 1.2 233 Kelley R.S. 8240 .0 .0 * 1.3 .7 186 Lily Lake 9130 .0 .0 * 1.5 1.1 136 Monte Cristo 8930 .2 .0 * 2.6 1.1 236 Salt River Summit 7630 .1 .0 * 1.3 .8 162 Spring Creek Divide 9020 .8 .2 400* 2.3 1.0 230 Trial Lake 9970 .9 .0 * 3.0 1.2 250 ----- ----- Basin Index (%) 1050* 222 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.