Supercell over Laramie
WRDS/SCO may be working remotely so there could be a slight delay returning phone calls. Please email wrds@uwyo.edu if you are in need of information and we will respond as soon as possible

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 SUNDAY: OCTOBER 29 , 2023 ------------------------------------------------------------------------------ BASIN ELEV. SNOW WATER EQUIVALENT TOTAL PRECIPITATION Data Site Name (Ft) % % Current Median Median Current Median Med ------------------------------------------------------------------------------ WYOMING SNAKE RIVER Base Camp 7060 .3 .2 150* 3.0 1.9 158 Blind Bull Sum 8650 .6 1.2 50* 1.8 2.0 90 Cottonwood Creek 7670 .8 1.0 80* 3.7 2.4 154 East Rim Divide 7930 -M .0 * 1.3 1.3 100 Grand Targhee 9260 3.3 4.2 79* 5.7 4.3 133 Granite Creek 6770 .0 .0 * 1.5 1.8 83 Grassy Lake 7265 -M .6 * -M 3.0 * Gros Ventre Summit 8750 .3 1.4 21 3.0 1.6 188 Gunsight Pass 9820 1.1 .8 138* 3.5 2.0 175 Lewis Lake Divide 7850 2.3 .6 383* 4.6 2.6 177 Loomis Park 8240 .3 .3 100* 1.7 1.8 94 Phillips Bench 8200 .9 1.0 90* 3.2 2.4 133 Salt River Summit 7640 .0 .0 * .6 1.7 35 Snake River Station 6920 .5 .0 * 3.3 2.2 150 Somsen Ranch 6800 .4 .0 * 2.8 1.6 175 Spring Creek Divide 9000 .0 1.1 0* 2.2 2.2 100 Thumb Divide 7980 1.7 .2 850* 2.9 2.0 145 Togwotee Pass 9580 1.6 2.4 67* 3.0 2.9 103 Triple Peak 8500 .4 .9 44* 1.7 2.0 85 Two Ocean Plateau 9240 2.0 3.0 67* 4.2 2.8 150 Willow Creek 8080 .5 .6 83* 4.4 3.6 122 Younts Peak 8350 -M 1.4 * -M 2.0 * ----- ----- Basin Index (%) 90* 129 MADISON HEADWATERS IN WYOMING Black Bear 8170 3.2 2.4 133* 6.0 3.8 158 Canyon 7870 .8 -M * 2.3 -M * Madison Plateau 7750 1.6 1.2 133* 3.8 2.6 146 West Yellowstone 6700 .5 .0 * 2.8 1.4 200 Whiskey Creek 6800 .6 .2 300* 3.4 1.8 189 ----- ----- Basin Index (%) 155* 167 YELLOWSTONE HEADWATERS IN WYOMING Beartooth Lake 9360 2.3 2.3 100* 3.0 2.4 125 Canyon 7870 .8 -M * 2.3 -M * Evening Star 9200 2.4 2.1 114* 5.7 3.2 178 Fisher Creek 9100 2.1 2.4 88* 3.9 3.0 130 Monument Peak 8850 1.6 1.8 89* 4.3 2.6 165 Northeast Entrance 7350 .3 .0 * 2.1 1.8 117 Parker Peak 9400 1.9 2.2 86* 4.4 2.3 191 Sylvan Lake 8420 -M 1.4 * -M 2.8 * Thumb Divide 7980 1.7 .2 850* 2.9 2.0 145 Two Ocean Plateau 9240 2.0 3.0 67* 4.2 2.8 150 White Mill 8700 1.9 1.8 106* 3.2 2.4 133 Wolverine 7650 .5 .0 * 4.0 1.8 222 ----- ----- Basin Index (%) 106* 155 WIND RIVER Burroughs Creek 8750 .4 -M * 1.9 -M * Castle Creek 8400 .6 .0 * 2.0 1.2 167 Cold Springs 9630 .5 .6 83* 2.6 1.8 144 Deer Park 9700 .8 1.4 57* 2.6 2.2 118 Hobbs Park 10100 3.0 1.9 158 4.2 2.0 210 Kirwin 9550 3.5 1.6 219 4.9 1.8 272 Little Warm 9370 1.0 1.1 91 2.6 1.7 153 South Pass 9040 .6 1.0 60* 2.1 1.7 124 St. Lawrence Alt 8620 .1 -M * 2.4 -M * Togwotee Pass 9580 1.6 2.4 67* 3.0 2.9 103 Townsend Creek 8700 .2 .8 25* 3.5 2.0 175 ----- ----- Basin Index (%) 109* 159 BIGHORN BASIN Bald Mtn. 9380 2.9 2.7 107 3.6 2.7 133 Bear Trap Meadow 8200 .7 .3 233* 2.9 1.8 161 Bone Springs Div 9350 2.6 2.2 118 4.6 2.6 177 Grave Springs 8550 .0 .5 0* 2.2 1.6 138 Kirwin 9550 3.5 1.6 219 4.9 1.8 272 Marquette 8760 3.7 .8 462* 7.0 2.0 350 Middle Powder 7760 .1 .6 17* 3.2 2.0 160 Owl Creek 8975 .3 .6 50 2.0 1.3 154 Powder River Pass 9480 .4 1.4 29 2.8 2.2 127 Shell Creek 9580 3.6 2.7 133 4.6 2.2 209 Timber Creek 7950 1.8 .2 900* 5.4 1.8 300 ----- ----- Basin Index (%) 144 196 SHOSHONE RIVER Blackwater 9780 3.7 2.5 148* 4.2 2.6 162 Evening Star 9200 2.4 2.1 114* 5.7 3.2 178 Marquette 8760 3.7 .8 462* 7.0 2.0 350 Sylvan Lake 8420 -M 1.4 * -M 2.8 * Sylvan Road 7120 .9 .0 * 4.7 2.0 235 Younts Peak 8350 -M 1.4 * -M 2.0 * ----- ----- Basin Index (%) 198* 220 POWDER RIVER Bear Trap Meadow 8200 .7 .3 233* 2.9 1.8 161 Cloud Peak Reservoir 9860 3.3 1.7 194 5.6 2.5 224 Grave Springs 8550 .0 .5 0* 2.2 1.6 138 Hansen Sawmill 8360 .3 .2 150* 2.6 1.8 144 Middle Powder 7760 .1 .6 17* 3.2 2.0 160 Powder River Pass 9480 .4 1.4 29 2.8 2.2 127 Soldier Park 8720 .0 .0 * 4.0 1.6 250 ----- ----- Basin Index (%) 102* 173 TONGUE RIVER Big Goose 7990 .3 .4 75* 4.9 2.0 245 Bone Springs Div 9350 2.6 2.2 118 4.6 2.6 177 Burgess Junction 7880 1.3 .9 144* 5.2 2.2 236 Dome Lake 8880 2.0 1.4 143 5.0 2.4 208 Little Goose 8870 1.5 .2 750* 4.9 1.9 258 Sucker Creek 8880 2.4 1.6 150 5.6 2.4 233 Tie Creek 6870 .6 .0 * 6.3 2.4 262 ----- ----- Basin Index (%) 160* 230 BELLE FOURCHE Blind Park 6890 .3 .0 * 1.5 1.5 100 Cole Canyon 5910 .0 .0 * 1.2 1.6 75 North Rapid Creek 6130 .0 .0 * 2.6 1.3 200 ----- ----- Basin Index (%) * 120 CHEYENNE RIVER BASIN Blind Park 6890 .3 .0 * 1.5 1.5 100 North Rapid Creek 6130 .0 .0 * 2.6 1.3 200 ----- ----- Basin Index (%) * 146 UPPER N. PLATTE Arapaho Ridge 10976 .4 2.4 17 1.7 3.0 57 Blackhall Mtn 9839 1.0 2.3 43* 3.2 3.6 89 Cinnabar Park 9707 .5 1.3 38* 1.4 2.2 64 Columbine 9167 .2 .2 100* 1.6 2.9 55 Divide Peak 8730 .5 .7 71* 3.4 2.8 121 Joe Wright 10158 .9 1.4 64* 2.8 3.4 82 Laprele Creek 8390 .1 .2 50* 2.8 1.6 175 Med Bow 10512 1.8 -M * 2.9 -M * Never Summer 10323 2.0 2.0 100* 2.0 2.9 69 North French Creek 10153 .4 2.2 18* 2.4 2.8 86 Old Battle 9860 .8 2.0 40* 2.4 3.8 63 Rawah 9069 .4 .4 100* 2.6 3.0 87 Sage Creek Basin 7850 .4 .0 * 1.9 2.0 95 Sand Lake 10098 2.2 2.3 96* 2.3 2.8 82 South Brush Creek 8495 .1 .3 33* 1.5 1.9 79 Tower 10620 1.1 2.1 52* 3.1 3.8 82 Webber Springs 9260 .7 .8 88* 1.8 3.2 56 Whiskey Park 9020 .7 .7 100* 2.3 2.8 82 Willow Creek Pass 9523 1.6 1.4 114* 2.0 2.1 95 Zirkel 9338 .7 .4 175* 1.9 3.2 59 ----- ----- Basin Index (%) 64* 80 SWEETWATER Deer Park 9700 .8 1.4 57* 2.6 2.2 118 Larsen Creek 9000 -M .0 * 1.8 1.8 100 South Pass 9040 .6 1.0 60* 2.1 1.7 124 ----- ----- Basin Index (%) 58* 114 LOWER N. PLATTE Casper Mtn. 7920 1.4 .8 175* 5.4 2.1 257 Laprele Creek 8390 .1 .2 50* 2.8 1.6 175 Reno Hill 8430 .4 1.0 40* 4.4 2.0 220 Windy Peak 7915 .0 .2 0* 1.9 1.5 127 ----- ----- Basin Index (%) 86* 201 LARAMIE RIVER Brooklyn Lake 10250 .3 .9 33* 1.3 2.0 65 Cinnabar Park 9707 .5 1.3 38* 1.4 2.2 64 Crow Creek 8335 .1 .0 * 1.8 1.7 106 Deadman Hill 10239 2.0 2.2 91 2.0 2.6 77 Rawah 9069 .4 .4 100* 2.6 3.0 87 Roach 9740 .6 1.1 55* 1.8 2.4 75 Windy Peak 7915 .0 .2 0* 1.9 1.5 127 ----- ----- Basin Index (%) 64* 83 S. PLATTE Crow Creek 8335 .1 .0 * 1.8 1.7 106 ----- ----- Basin Index (%) * 106 LITTLE SNAKE RIVER Battle Mountain 7498 .1 .0 * 2.1 1.9 111 Divide Peak 8730 .5 .7 71* 3.4 2.8 121 Elk River 8739 .8 .2 400* 1.7 2.3 74 Elkhead Divide 8800 .5 -M * 2.1 -M * Little Snake River 8928 .5 .0 * 2.7 4.2 64 Old Battle 9860 .8 2.0 40* 2.4 3.8 63 Sage Creek Basin 7850 .4 .0 * 1.9 2.0 95 Sandstone RS 8152 .1 .0 * 1.4 2.1 67 Whiskey Park 9020 .7 .7 100* 2.3 2.8 82 ----- ----- Basin Index (%) 108* 82 UPPER GREEN RIVER Big Sandy Opening 9080 .4 1.2 33* 1.9 1.6 119 Blind Bull Sum 8650 .6 1.2 50* 1.8 2.0 90 East Rim Divide 7930 -M .0 * 1.3 1.3 100 Elkhart Park G.S. 9400 .3 .8 38* 2.5 1.7 147 Gros Ventre Summit 8750 .3 1.4 21 3.0 1.6 188 Gunsight Pass 9820 1.1 .8 138* 3.5 2.0 175 Indian Creek 9425 .5 1.4 36* 2.0 2.1 95 Kendall R.S. 7740 .0 .2 0* 2.2 1.5 147 Larsen Creek 9000 -M .0 * 1.8 1.8 100 Loomis Park 8240 .3 .3 100* 1.7 1.8 94 New Fork Lake 8340 -M .2 * .5 1.2 42 Pocket Creek 9360 -M -M * -M -M * Snider Basin 8060 -M .1 * .7 1.3 54 Spring Creek Divide 9000 .0 1.1 0* 2.2 2.2 100 Triple Peak 8500 .4 .9 44* 1.7 2.0 85 ----- ----- Basin Index (%) 42* 111 LOWER GREEN RIVER Blacks Fork Jct 8869 .7 .0 * 2.0 1.5 133 Buck Pasture 9632 .4 -M * 2.3 -M * EF Blacks Fork GS 9360 .2 .0 * 2.0 1.6 125 Hams Fork 7840 -M .0 * .9 1.4 64 Henrys Fork 10182 -M -M * 2.8 -M * Hewinta 9500 .2 .0 * 2.0 1.9 105 Hickerson Park 9122 1.0 .0 * 2.9 1.6 181 Hole-in-Rock 9168 .0 .2 0* 1.9 1.8 106 Indian Creek 9425 .5 1.4 36* 2.0 2.1 95 Kelley R.S. 8180 .5 .3 167* 1.5 1.8 83 Spirit Lk 10235 .2 .7 29* 3.1 2.2 141 Steel Creek Park 10158 .7 1.2 58* 2.5 2.0 125 ----- ----- Basin Index (%) 105* 116 UPPER BEAR RIVER Bear River RS 8777 .4 .0 * 1.9 1.4 136 Bug Lake 7987 1.1 .0 * 2.3 1.8 128 Burts Miller Ranch 8000 .3 .0 * 1.7 1.1 155 Chalk Creek #1 9171 .8 1.0 80* 2.8 2.8 100 Giveout 6930 -M .0 * .8 1.5 53 Hayden Fork 9130 .6 .0 * 3.0 2.4 125 Kelley R.S. 8180 .5 .3 167* 1.5 1.8 83 Lily Lake 9133 .6 .4 150* 2.4 2.2 109 Monte Cristo 8932 .6 .0 * 2.7 2.4 112 Salt River Summit 7640 .0 .0 * .6 1.7 35 Spring Creek Divide 9000 .0 1.1 0* 2.2 2.2 100 Trial Lake 9992 .4 .8 50* 2.4 2.2 109 ----- ----- Basin Index (%) 147* 103 ----------------------------------------------------------------------------- -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. ---------------------------------------------------------------------------- -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.