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 MONDAY: NOVEMBER 13 , 2023 ------------------------------------------------------------------------------ BASIN ELEV. SNOW WATER EQUIVALENT TOTAL PRECIPITATION Data Site Name (Ft) % % Current Median Median Current Median Med ------------------------------------------------------------------------------ WYOMING SNAKE RIVER Base Camp 7060 .8 1.6 50* 4.7 3.4 138 Blind Bull Sum 8650 2.5 2.8 89 2.8 3.2 88 Cottonwood Creek 7670 1.5 2.4 62 5.3 4.6 115 East Rim Divide 7930 .3 .7 43* 2.1 2.2 95 Grand Targhee 9260 7.0 7.3 96 8.4 7.2 117 Granite Creek 6770 .1 .8 12* 2.7 3.4 79 Grassy Lake 7265 1.2 2.4 50* 6.7 5.4 124 Gros Ventre Summit 8750 1.2 2.2 55 3.3 2.6 127 Gunsight Pass 9820 2.1 2.0 105 4.8 3.2 150 Lewis Lake Divide 7850 3.7 2.8 132* 7.8 5.4 144 Loomis Park 8240 1.0 1.4 71* 2.5 3.0 83 Phillips Bench 8200 2.0 2.5 80* 5.0 4.4 114 Salt River Summit 7640 .3 .6 50* 1.3 2.7 48 Snake River Station 6920 .7 1.2 58* 5.5 3.8 145 Somsen Ranch 6800 .4 .7 57* 4.5 3.2 141 Spring Creek Divide 9000 1.8 2.8 64 3.5 3.8 92 Thumb Divide 7980 2.7 1.5 180* 4.6 3.2 144 Togwotee Pass 9580 3.2 4.0 80 4.5 4.8 94 Triple Peak 8500 2.1 2.6 81 3.7 4.1 90 Two Ocean Plateau 9240 4.8 5.0 96 7.0 4.8 146 Willow Creek 8080 1.8 2.8 64* 6.6 6.1 108 Younts Peak 8350 -M 2.0 * -M 3.0 * ----- ----- Basin Index (%) 82* 115 MADISON HEADWATERS IN WYOMING Black Bear 8170 4.7 4.8 98 8.6 6.4 134 Canyon 7870 1.7 -M * 3.6 -M * Madison Plateau 7750 2.6 2.4 108 6.4 4.6 139 West Yellowstone 6700 .8 1.0 80* 4.2 2.4 175 Whiskey Creek 6800 .9 1.6 56 5.8 3.4 171 ----- ----- Basin Index (%) 92 149 YELLOWSTONE HEADWATERS IN WYOMING Beartooth Lake 9360 3.7 4.1 90 4.3 3.6 119 Canyon 7870 1.7 -M * 3.6 -M * Evening Star 9200 5.2 3.7 141 9.7 5.8 167 Fisher Creek 9100 4.7 4.8 98 7.0 5.9 119 Monument Peak 8850 3.4 3.2 106 6.2 4.7 132 Northeast Entrance 7350 .2 .6 33* 3.3 3.0 110 Parker Peak 9400 4.6 3.8 121 7.2 4.2 171 Sylvan Lake 8420 3.8 2.8 136 8.7 5.0 174 Thumb Divide 7980 2.7 1.5 180* 4.6 3.2 144 Two Ocean Plateau 9240 4.8 5.0 96 7.0 4.8 146 White Mill 8700 3.8 3.4 112 5.2 4.6 113 Wolverine 7650 1.2 .6 200* 5.7 2.8 204 ----- ----- Basin Index (%) 114 145 WIND RIVER Burroughs Creek 8750 1.2 -M * 2.7 -M * Castle Creek 8400 1.1 .4 275* 2.6 1.9 137 Cold Springs 9630 1.0 1.3 77 3.1 2.4 129 Deer Park 9700 1.5 2.4 62 3.7 3.4 109 Hobbs Park 10100 3.8 2.4 158 5.0 3.2 156 Kirwin 9550 4.4 2.4 183 6.0 2.8 214 Little Warm 9370 2.1 1.6 131 4.3 2.6 165 South Pass 9040 .9 1.9 47 2.7 2.8 96 St. Lawrence Alt 8620 .1 -M * 2.7 -M * Togwotee Pass 9580 3.2 4.0 80 4.5 4.8 94 Townsend Creek 8700 .6 1.5 40 3.8 2.6 146 ----- ----- Basin Index (%) 104 135 BIGHORN BASIN Bald Mtn. 9380 4.3 4.2 102 4.9 3.8 129 Bear Trap Meadow 8200 .5 1.0 50 3.5 2.4 146 Bone Springs Div 9350 4.0 3.5 114 5.6 3.6 156 Grave Springs 8550 .1 1.2 8 2.4 2.4 100 Kirwin 9550 4.4 2.4 183 6.0 2.8 214 Marquette 8760 4.4 1.2 367 7.4 2.6 285 Middle Powder 7760 .6 1.4 43 3.4 2.7 126 Owl Creek 8975 .3 1.2 25 2.3 2.0 115 Powder River Pass 9480 .8 2.3 35 3.5 3.1 113 Shell Creek 9580 4.4 3.8 116 5.5 3.4 162 Timber Creek 7950 1.6 .8 200 5.6 2.3 243 ----- ----- Basin Index (%) 110 161 SHOSHONE RIVER Blackwater 9780 6.2 4.2 148 6.8 4.0 170 Evening Star 9200 5.2 3.7 141 9.7 5.8 167 Marquette 8760 4.4 1.2 367 7.4 2.6 285 Sylvan Lake 8420 3.8 2.8 136 8.7 5.0 174 Sylvan Road 7120 1.3 1.3 100 6.8 3.7 184 Younts Peak 8350 -M 2.0 * -M 3.0 * ----- ----- Basin Index (%) 158 187 POWDER RIVER Bear Trap Meadow 8200 .5 1.0 50 3.5 2.4 146 Cloud Peak Reservoir 9860 3.8 2.6 146 6.2 3.4 182 Grave Springs 8550 .1 1.2 8 2.4 2.4 100 Hansen Sawmill 8360 .7 1.0 70 2.8 2.4 117 Middle Powder 7760 .6 1.4 43 3.4 2.7 126 Powder River Pass 9480 .8 2.3 35 3.5 3.1 113 Soldier Park 8720 .2 .6 33* 4.5 2.3 196 ----- ----- Basin Index (%) 66 141 TONGUE RIVER Big Goose 7990 1.1 1.2 92 5.1 2.5 204 Bone Springs Div 9350 4.0 3.5 114 5.6 3.6 156 Burgess Junction 7880 1.7 1.7 100 5.7 3.1 184 Dome Lake 8880 2.4 2.4 100 5.5 3.2 172 Little Goose 8870 1.8 1.0 180* 5.5 2.8 196 Sucker Creek 8880 3.1 2.4 129 6.5 3.9 167 Tie Creek 6870 .3 .4 75* 6.8 3.0 227 ----- ----- Basin Index (%) 114 184 BELLE FOURCHE Blind Park 6890 .6 1.0 60 2.0 2.7 74 Cole Canyon 5910 .1 .3 33* 1.8 2.1 86 North Rapid Creek 6130 .3 .6 50* 2.7 2.0 135 ----- ----- Basin Index (%) 53* 96 CHEYENNE RIVER BASIN Blind Park 6890 .6 1.0 60 2.0 2.7 74 North Rapid Creek 6130 .3 .6 50* 2.7 2.0 135 ----- ----- Basin Index (%) 56 100 UPPER N. PLATTE Arapaho Ridge 10976 .7 3.8 18 1.9 4.8 40 Blackhall Mtn 9839 1.5 4.3 35 3.5 5.4 65 Cinnabar Park 9707 .8 2.7 30 1.7 3.7 46 Columbine 9167 .2 2.0 10* 1.9 4.3 44 Divide Peak 8730 .5 2.4 21 3.8 4.4 86 Joe Wright 10158 1.4 3.6 39 3.4 5.6 61 Laprele Creek 8390 .2 1.1 18 3.0 2.5 120 Med Bow 10512 2.3 -M * 3.3 -M * Never Summer 10323 2.7 3.4 79 2.5 4.2 60 North French Creek 10153 1.0 3.8 26 2.8 5.0 56 Old Battle 9860 1.0 4.6 22 2.9 6.2 47 Rawah 9069 .2 1.7 12 2.8 3.9 72 Sage Creek Basin 7850 .1 1.0 10* 2.1 2.9 72 Sand Lake 10098 2.6 4.4 59 2.8 4.6 61 South Brush Creek 8495 .0 1.4 0 1.8 3.2 56 Tower 10620 1.5 6.3 24 3.7 7.2 51 Webber Springs 9260 .9 2.4 38 2.1 4.8 44 Whiskey Park 9020 .9 2.6 35* 2.7 4.8 56 Willow Creek Pass 9523 2.1 2.6 81 2.7 3.1 87 Zirkel 9338 .2 2.0 10* 2.1 5.2 40 ----- ----- Basin Index (%) 33 59 SWEETWATER Deer Park 9700 1.5 2.4 62 3.7 3.4 109 Larsen Creek 9000 .3 .2 150* 2.7 2.4 112 South Pass 9040 .9 1.9 47 2.7 2.8 96 ----- ----- Basin Index (%) 60 106 LOWER N. PLATTE Casper Mtn. 7920 1.3 1.7 76 6.0 3.3 182 Laprele Creek 8390 .2 1.1 18 3.0 2.5 120 Reno Hill 8430 .7 2.1 33 4.8 3.2 150 Windy Peak 7915 .3 .8 38 2.1 2.4 88 ----- ----- Basin Index (%) 44 139 LARAMIE RIVER Brooklyn Lake 10250 .2 2.3 9* 1.6 3.4 47 Cinnabar Park 9707 .8 2.7 30 1.7 3.7 46 Crow Creek 8335 .1 .7 14 2.0 2.5 80 Deadman Hill 10239 2.6 3.0 87 2.4 3.8 63 Rawah 9069 .2 1.7 12 2.8 3.9 72 Roach 9740 .7 2.6 27 2.0 3.8 53 Windy Peak 7915 .3 .8 38 2.1 2.4 88 ----- ----- Basin Index (%) 36 62 S. PLATTE Crow Creek 8335 .1 .7 14 2.0 2.5 80 ----- ----- Basin Index (%) 14 80 LITTLE SNAKE RIVER Battle Mountain 7498 -M .6 * 2.3 3.4 68 Divide Peak 8730 .5 2.4 21 3.8 4.4 86 Elk River 8739 .5 1.0 50* 2.0 3.8 53 Elkhead Divide 8800 .2 -M * 2.5 -M * Little Snake River 8928 .1 2.2 5* 2.8 5.5 51 Old Battle 9860 1.0 4.6 22 2.9 6.2 47 Sage Creek Basin 7850 .1 1.0 10* 2.1 2.9 72 Sandstone RS 8152 .0 .8 0* 1.6 3.6 44 Whiskey Park 9020 .9 2.6 35* 2.7 4.8 56 ----- ----- Basin Index (%) 21* 58 UPPER GREEN RIVER Big Sandy Opening 9080 1.8 2.0 90 3.1 2.6 119 Blind Bull Sum 8650 2.5 2.8 89 2.8 3.2 88 East Rim Divide 7930 .3 .7 43* 2.1 2.2 95 Elkhart Park G.S. 9400 1.1 1.8 61 3.0 2.9 103 Gros Ventre Summit 8750 1.2 2.2 55 3.3 2.6 127 Gunsight Pass 9820 2.1 2.0 105 4.8 3.2 150 Indian Creek 9425 1.4 2.6 54 2.7 3.4 79 Kendall R.S. 7740 -M .8 * 2.8 2.6 108 Larsen Creek 9000 .3 .2 150* 2.7 2.4 112 Loomis Park 8240 1.0 1.4 71* 2.5 3.0 83 New Fork Lake 8340 .5 1.1 45 1.2 2.1 57 Pocket Creek 9360 -M -M * -M -M * Snider Basin 8060 -M 1.0 * 1.5 2.2 68 Spring Creek Divide 9000 1.8 2.8 64 3.5 3.8 92 Triple Peak 8500 2.1 2.6 81 3.7 4.1 90 ----- ----- Basin Index (%) 73 99 LOWER GREEN RIVER Blacks Fork Jct 8869 .9 .2 450* 2.5 2.2 114 Buck Pasture 9632 .9 -M * 2.7 -M * EF Blacks Fork GS 9360 .4 .8 50* 2.2 2.6 85 Hams Fork 7840 -M .4 * 1.2 2.4 50 Henrys Fork 10182 -M -M * 2.8 -M * Hewinta 9500 .8 .6 133* 2.5 3.0 83 Hickerson Park 9122 1.1 .9 122 3.7 2.7 137 Hole-in-Rock 9168 1.2 .8 150 2.7 2.6 104 Indian Creek 9425 1.4 2.6 54 2.7 3.4 79 Kelley R.S. 8180 .5 1.4 36* 2.1 3.1 68 Spirit Lk 10235 1.0 1.8 56 4.0 3.9 103 Steel Creek Park 10158 1.2 2.0 60 3.0 3.5 86 ----- ----- Basin Index (%) 77 90 UPPER BEAR RIVER Bear River RS 8777 .5 .3 167* 2.7 2.3 117 Bug Lake 7987 1.0 1.2 83* 3.3 3.3 100 Burts Miller Ranch 8000 .5 .0 * 2.5 1.6 156 Chalk Creek #1 9171 1.5 2.8 54 3.9 4.6 85 Giveout 6930 -M .2 * 1.4 2.4 58 Hayden Fork 9130 .7 .8 88* 3.7 3.8 97 Kelley R.S. 8180 .5 1.4 36* 2.1 3.1 68 Lily Lake 9133 .6 1.2 50* 3.0 3.6 83 Monte Cristo 8932 1.6 2.1 76* 4.0 4.2 95 Salt River Summit 7640 .3 .6 50* 1.3 2.7 48 Spring Creek Divide 9000 1.8 2.8 64 3.5 3.8 92 Trial Lake 9992 1.2 2.4 50 2.6 3.6 72 ----- ----- Basin Index (%) 65* 87 ----------------------------------------------------------------------------- -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.