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 FRIDAY: NOVEMBER 3 , 2023 ------------------------------------------------------------------------------ BASIN ELEV. SNOW WATER EQUIVALENT TOTAL PRECIPITATION Data Site Name (Ft) % % Current Median Median Current Median Med ------------------------------------------------------------------------------ WYOMING SNAKE RIVER Base Camp 7060 1.2 .3 400* 3.4 2.4 142 Blind Bull Sum 8650 1.2 1.7 71* 1.7 2.2 77 Cottonwood Creek 7670 1.3 1.2 108* 3.9 3.3 118 East Rim Divide 7930 .2 .3 67* 1.8 1.6 112 Grand Targhee 9260 5.3 5.0 106 7.2 5.6 129 Granite Creek 6770 .2 .2 100* 1.8 2.3 78 Grassy Lake 7265 1.8 1.3 138* 5.0 3.8 132 Gros Ventre Summit 8750 .3 1.5 20 2.6 2.0 130 Gunsight Pass 9820 1.6 1.2 133* 4.0 2.4 167 Lewis Lake Divide 7850 2.9 1.2 242* 5.4 4.0 135 Loomis Park 8240 .6 .7 86* 1.9 2.2 86 Phillips Bench 8200 1.7 1.5 113* 3.8 3.1 123 Salt River Summit 7640 .3 .0 * 1.0 2.0 50 Snake River Station 6920 1.3 .2 650* 4.5 3.0 150 Somsen Ranch 6800 .6 .0 * 3.3 2.4 138 Spring Creek Divide 9000 .9 1.6 56* 2.4 2.9 83 Thumb Divide 7980 1.9 .6 317* 3.4 2.5 136 Togwotee Pass 9580 2.1 2.8 75 3.4 3.4 100 Triple Peak 8500 1.0 1.4 71* 2.3 2.6 88 Two Ocean Plateau 9240 2.8 3.9 72 5.1 3.5 146 Willow Creek 8080 1.0 1.2 83* 4.8 4.2 114 Younts Peak 8350 -M 1.4 * -M 2.5 * ----- ----- Basin Index (%) 109* 118 MADISON HEADWATERS IN WYOMING Black Bear 8170 4.0 3.0 133* 7.1 4.6 154 Canyon 7870 1.3 -M * 2.7 -M * Madison Plateau 7750 2.1 1.4 150* 4.4 3.1 142 West Yellowstone 6700 .9 .1 900* 2.9 1.8 161 Whiskey Creek 6800 1.1 .6 183* 4.4 2.4 183 ----- ----- Basin Index (%) 159* 158 YELLOWSTONE HEADWATERS IN WYOMING Beartooth Lake 9360 2.9 3.0 97 3.4 2.8 121 Canyon 7870 1.3 -M * 2.7 -M * Evening Star 9200 3.3 2.6 127* 7.2 4.2 171 Fisher Creek 9100 2.7 3.2 84* 5.0 4.7 106 Monument Peak 8850 2.4 2.4 100 5.2 3.6 144 Northeast Entrance 7350 .8 .0 * 2.4 2.3 104 Parker Peak 9400 3.0 2.6 115 5.5 3.0 183 Sylvan Lake 8420 2.6 1.8 144* 6.7 3.6 186 Thumb Divide 7980 1.9 .6 317* 3.4 2.5 136 Two Ocean Plateau 9240 2.8 3.9 72 5.1 3.5 146 White Mill 8700 2.5 2.4 104* 4.0 3.4 118 Wolverine 7650 1.1 .1 1100* 4.7 2.2 214 ----- ----- Basin Index (%) 115* 147 WIND RIVER Burroughs Creek 8750 .9 -M * 2.0 -M * Castle Creek 8400 .9 .2 450* 2.3 1.4 164 Cold Springs 9630 .8 1.0 80 2.6 2.0 130 Deer Park 9700 .9 1.5 60* 3.1 2.5 124 Hobbs Park 10100 3.2 2.0 160 4.5 2.4 188 Kirwin 9550 3.8 1.8 211 5.2 2.2 236 Little Warm 9370 1.4 1.4 100 3.4 2.0 170 South Pass 9040 .5 1.1 45* 2.4 2.0 120 St. Lawrence Alt 8620 .2 -M * 2.5 -M * Togwotee Pass 9580 2.1 2.8 75 3.4 3.4 100 Townsend Creek 8700 .5 1.0 50 3.7 2.4 154 ----- ----- Basin Index (%) 110 151 BIGHORN BASIN Bald Mtn. 9380 3.8 3.4 112 4.5 3.2 141 Bear Trap Meadow 8200 .7 .7 100 3.4 1.9 179 Bone Springs Div 9350 3.6 2.7 133 5.3 2.7 196 Grave Springs 8550 .3 .8 38* 2.4 2.0 120 Kirwin 9550 3.8 1.8 211 5.2 2.2 236 Marquette 8760 4.0 1.1 364 7.4 2.2 336 Middle Powder 7760 .4 .8 50* 3.4 2.3 148 Owl Creek 8975 .4 .8 50 2.3 1.5 153 Powder River Pass 9480 .7 1.6 44 3.2 2.5 128 Shell Creek 9580 4.2 3.2 131 5.2 2.8 186 Timber Creek 7950 1.6 .6 267 5.6 2.0 280 ----- ----- Basin Index (%) 134 189 SHOSHONE RIVER Blackwater 9780 4.6 3.2 144 5.1 3.0 170 Evening Star 9200 3.3 2.6 127* 7.2 4.2 171 Marquette 8760 4.0 1.1 364 7.4 2.2 336 Sylvan Lake 8420 2.6 1.8 144* 6.7 3.6 186 Sylvan Road 7120 1.2 .4 300* 5.1 2.7 189 Younts Peak 8350 -M 1.4 * -M 2.5 * ----- ----- Basin Index (%) 173* 201 POWDER RIVER Bear Trap Meadow 8200 .7 .7 100 3.4 1.9 179 Cloud Peak Reservoir 9860 3.5 2.0 175 5.9 2.9 203 Grave Springs 8550 .3 .8 38* 2.4 2.0 120 Hansen Sawmill 8360 .9 .8 112 2.8 2.0 140 Middle Powder 7760 .4 .8 50* 3.4 2.3 148 Powder River Pass 9480 .7 1.6 44 3.2 2.5 128 Soldier Park 8720 .5 .2 250* 4.4 2.1 210 ----- ----- Basin Index (%) 101 162 TONGUE RIVER Big Goose 7990 .7 .7 100* 4.9 2.2 223 Bone Springs Div 9350 3.6 2.7 133 5.3 2.7 196 Burgess Junction 7880 1.6 1.4 114 5.4 2.5 216 Dome Lake 8880 2.4 2.0 120 5.3 2.6 204 Little Goose 8870 1.8 .4 450* 5.4 2.4 225 Sucker Creek 8880 2.7 1.8 150 6.2 2.7 230 Tie Creek 6870 .7 .2 350* 6.6 2.6 254 ----- ----- Basin Index (%) 147 221 BELLE FOURCHE Blind Park 6890 .5 .6 83* 1.9 2.2 86 Cole Canyon 5910 .1 .0 * 1.6 1.8 89 North Rapid Creek 6130 .0 .0 * 2.5 1.5 167 ----- ----- Basin Index (%) 100* 109 CHEYENNE RIVER BASIN Blind Park 6890 .5 .6 83* 1.9 2.2 86 North Rapid Creek 6130 .0 .0 * 2.5 1.5 167 ----- ----- Basin Index (%) 83* 119 UPPER N. PLATTE Arapaho Ridge 10976 .6 2.8 21 1.7 3.6 47 Blackhall Mtn 9839 1.3 2.6 50* 3.3 4.2 79 Cinnabar Park 9707 .7 1.6 44* 1.5 3.0 50 Columbine 9167 .0 1.0 0* 2.0 3.2 62 Divide Peak 8730 .7 1.3 54* 3.6 3.3 109 Joe Wright 10158 1.0 2.5 40 3.0 4.6 65 Laprele Creek 8390 .2 .6 33* 2.9 1.9 153 Med Bow 10512 2.2 -M * 2.9 -M * Never Summer 10323 2.2 2.9 76 2.2 3.2 69 North French Creek 10153 .7 2.6 27* 2.5 3.9 64 Old Battle 9860 1.0 2.6 38* 2.8 4.6 61 Rawah 9069 .6 1.0 60* 2.7 3.2 84 Sage Creek Basin 7850 .4 .2 200* 1.9 2.2 86 Sand Lake 10098 2.5 2.5 100* 2.7 3.3 82 South Brush Creek 8495 .3 .8 38* 1.7 2.5 68 Tower 10620 1.3 3.2 41* 3.4 5.0 68 Webber Springs 9260 .8 1.2 67* 2.0 3.8 53 Whiskey Park 9020 .9 1.2 75* 2.4 3.6 67 Willow Creek Pass 9523 1.7 1.8 94 2.3 2.5 92 Zirkel 9338 .6 .8 75* 2.0 3.6 56 ----- ----- Basin Index (%) 53* 71 SWEETWATER Deer Park 9700 .9 1.5 60* 3.1 2.5 124 Larsen Creek 9000 -M .0 * 1.9 2.1 90 South Pass 9040 .5 1.1 45* 2.4 2.0 120 ----- ----- Basin Index (%) 54* 112 LOWER N. PLATTE Casper Mtn. 7920 1.6 1.2 133* 5.7 2.6 219 Laprele Creek 8390 .2 .6 33* 2.9 1.9 153 Reno Hill 8430 .9 1.2 75* 4.6 2.3 200 Windy Peak 7915 .3 .6 50* 2.1 2.0 105 ----- ----- Basin Index (%) 83* 174 LARAMIE RIVER Brooklyn Lake 10250 .3 1.2 25* 1.5 2.7 56 Cinnabar Park 9707 .7 1.6 44* 1.5 3.0 50 Crow Creek 8335 .1 .2 50* 1.9 2.0 95 Deadman Hill 10239 2.2 2.6 85 2.1 3.0 70 Rawah 9069 .6 1.0 60* 2.7 3.2 84 Roach 9740 .7 1.8 39 2.0 3.0 67 Windy Peak 7915 .3 .6 50* 2.1 2.0 105 ----- ----- Basin Index (%) 54* 73 S. PLATTE Crow Creek 8335 .1 .2 50* 1.9 2.0 95 ----- ----- Basin Index (%) 50* 95 LITTLE SNAKE RIVER Battle Mountain 7498 .1 .0 * 2.2 2.4 92 Divide Peak 8730 .7 1.3 54* 3.6 3.3 109 Elk River 8739 .6 .2 300* 1.9 2.9 66 Elkhead Divide 8800 .7 -M * 2.4 -M * Little Snake River 8928 .5 .6 83* 2.8 4.6 61 Old Battle 9860 1.0 2.6 38* 2.8 4.6 61 Sage Creek Basin 7850 .4 .2 200* 1.9 2.2 86 Sandstone RS 8152 .1 .2 50* 1.6 2.4 67 Whiskey Park 9020 .9 1.2 75* 2.4 3.6 67 ----- ----- Basin Index (%) 68* 74 UPPER GREEN RIVER Big Sandy Opening 9080 1.0 1.4 71 2.3 2.0 115 Blind Bull Sum 8650 1.2 1.7 71* 1.7 2.2 77 East Rim Divide 7930 .2 .3 67* 1.8 1.6 112 Elkhart Park G.S. 9400 .7 1.0 70* 2.7 2.2 123 Gros Ventre Summit 8750 .3 1.5 20 2.6 2.0 130 Gunsight Pass 9820 1.6 1.2 133* 4.0 2.4 167 Indian Creek 9425 .8 1.8 44* 2.2 2.6 85 Kendall R.S. 7740 .3 .3 100* 2.2 1.8 122 Larsen Creek 9000 -M .0 * 1.9 2.1 90 Loomis Park 8240 .6 .7 86* 1.9 2.2 86 New Fork Lake 8340 .4 .6 67* 1.0 1.4 71 Pocket Creek 9360 -M -M * -M -M * Snider Basin 8060 -M .4 * 1.0 1.8 56 Spring Creek Divide 9000 .9 1.6 56* 2.4 2.9 83 Triple Peak 8500 1.0 1.4 71* 2.3 2.6 88 ----- ----- Basin Index (%) 67* 101 LOWER GREEN RIVER Blacks Fork Jct 8869 .8 .0 * 2.0 1.8 111 Buck Pasture 9632 .4 -M * 2.5 -M * EF Blacks Fork GS 9360 .3 .2 150* 2.0 2.0 100 Hams Fork 7840 -M .0 * .8 1.8 44 Henrys Fork 10182 -M -M * 2.4 -M * Hewinta 9500 .1 .2 50* 2.1 2.4 88 Hickerson Park 9122 .8 .4 200* 3.0 2.0 150 Hole-in-Rock 9168 .3 .3 100* 2.2 2.0 110 Indian Creek 9425 .8 1.8 44* 2.2 2.6 85 Kelley R.S. 8180 .5 .6 83* 1.7 2.2 77 Spirit Lk 10235 .5 1.0 50* 3.4 2.5 136 Steel Creek Park 10158 .9 1.4 64* 2.6 2.6 100 ----- ----- Basin Index (%) 85* 100 UPPER BEAR RIVER Bear River RS 8777 .4 .0 * 1.9 1.8 106 Bug Lake 7987 1.2 .4 300* 2.4 2.1 114 Burts Miller Ranch 8000 .3 .0 * 1.8 1.3 138 Chalk Creek #1 9171 1.1 1.5 73* 3.1 3.4 91 Giveout 6930 -M .0 * 1.0 1.8 56 Hayden Fork 9130 .4 .2 200* 3.2 3.0 107 Kelley R.S. 8180 .5 .6 83* 1.7 2.2 77 Lily Lake 9133 .6 .6 100* 2.4 2.7 89 Monte Cristo 8932 .8 .7 114* 2.9 3.0 97 Salt River Summit 7640 .3 .0 * 1.0 2.0 50 Spring Creek Divide 9000 .9 1.6 56* 2.4 2.9 83 Trial Lake 9992 .7 1.0 70* 2.4 2.8 86 ----- ----- Basin Index (%) 109* 90 ----------------------------------------------------------------------------- -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.