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: OCTOBER 14 , 2016 ------------------------------------------------------------------------------ BASIN ELEV. SNOW WATER EQUIVALENT TOTAL PRECIPITATION Data Site Name (Ft) % % Current Median Median Current Average Avg ------------------------------------------------------------------------------ WYOMING SNAKE RIVER Base Camp 7030 .1 .0 * 2.8 .8 350 Black Bear 8170 .7 .8 88* 3.2 1.6 200 Blind Bull Sum 8650 .8 .1 800* 1.0 .8 125 Cottonwood Creek 7670 .3 .0 * 2.4 1.0 240 East Rim Divide 7930 .0 .0 * 1.2 .6 200 Grand Targhee 9260 4.8 1.3 369* -M 2.6 * Granite Creek 6770 .0 .0 * 2.0 .7 286 Grassy Lake 7265 .3 .0 * 4.1 1.4 293 Gros Ventre Summit 8750 .5 .5 100* 1.9 .7 271 Gunsight Pass 9820 .4 .0 * 2.4 1.0 240 Lewis Lake Divide 7850 .0 .0 * 2.6 1.3 200 Phillips Bench 8200 .5 .0 * 3.1 .9 344 Salt River Summit 7760 .0 .0 * 1.5 .7 214 Snake River Station 6920 .3 .0 * 2.7 1.1 245 Spring Creek Divide 9000 .4 .0 * 1.9 .8 238 Thumb Divide 7980 .3 .0 * 2.1 1.0 210 Togwotee Pass 9580 1.4 1.0 140* 2.7 1.0 270 Two Ocean Plateau 9240 2.3 1.2 192* -M 1.2 * Willow Creek 8380 .0 .0 * 2.9 1.4 207 Younts Peak 8350 .4 .4 100* 1.0 1.0 100 ----- ----- Basin Index (%) 255* 233 MADISON-GALLATIN Black Bear 8170 .7 .8 88* 3.2 1.6 200 Canyon 7870 .0 .0 * 2.1 .9 233 Madison Plateau 7750 .0 .3 0* 2.4 1.2 200 West Yellowstone 6700 .0 .0 * 1.6 .9 178 Whiskey Creek 6800 .0 .0 * 1.9 1.0 190 ----- ----- Basin Index (%) 64* 200 YELLOWSTONE Beartooth Lake 9360 .6 1.0 60* 1.5 .9 167 Burnt Mtn 5880 .0 .0 * 2.0 2.2 91 Canyon 7870 .0 .0 * 2.1 .9 233 Cole Creek 7850 .7 1.0 70* 1.6 1.5 107 Evening Star 9200 1.6 .8 200* 4.0 1.4 286 Fisher Creek 9100 .0 1.0 0* 2.2 1.4 157 Northeast Entrance 7350 .0 .0 * 1.6 .8 200 Parker Peak 9400 1.2 1.0 120* 2.9 1.3 223 Sylvan Lake 8420 1.6 .4 400* 4.4 1.4 314 Thumb Divide 7980 .3 .0 * 2.1 1.0 210 Two Ocean Plateau 9240 2.3 1.2 192* -M 1.2 * White Mill 8700 .0 .8 0* 1.5 1.2 125 Wolverine 7650 .0 .0 * 1.6 .9 178 ----- ----- Basin Index (%) 115* 185 WIND RIVER Burroughs Creek 8750 .0 -M * 1.4 -M * Castle Creek 8400 .0 -M * 1.2 -M * Cold Springs 9630 .0 .0 * 1.1 .8 138 Deer Park 9700 .0 .6 0* 1.2 1.4 86 Hobbs Park 10100 .2 .6 33* .9 .9 100 Kirwin 9550 .3 .6 50* 1.1 .9 122 Little Warm 9370 .4 .2 200* 1.6 .8 200 Owl Creek 8975 .0 .0 * .9 .7 129 South Pass 9040 .1 .0 * 1.1 1.0 110 St. Lawrence Alt 8620 .0 .0 * .5 .8 62 Togwotee Pass 9580 1.4 1.0 140* 2.7 1.0 270 Townsend Creek 8700 .0 .0 * 1.4 1.0 140 ----- ----- Basin Index (%) 80* 134 BIGHORN BASIN Bald Mtn. 9380 2.0 1.5 133* 1.6 1.3 123 Bear Trap Meadow 8200 .0 .0 * 1.3 .8 162 Bone Springs Div 9350 .8 1.2 67* 1.7 1.3 131 Grave Springs 8550 .0 .0 * 1.5 1.1 136 Kirwin 9550 .3 .6 50* 1.1 .9 122 Marquette 8760 .0 -M * 1.4 -M * Middle Powder 7760 1.7 .3 567* 1.3 1.1 118 Owl Creek 8975 .0 .0 * .9 .7 129 Powder River Pass 9480 .9 .2 450* 1.9 1.0 190 Shell Creek 9580 2.3 1.4 164* 2.2 1.2 183 Timber Creek 7950 .0 .0 * .9 1.0 90 ----- ----- Basin Index (%) 154* 138 SHOSHONE RIVER Blackwater 9780 2.4 1.1 218* 4.0 1.3 308 Evening Star 9200 1.6 .8 200* 4.0 1.4 286 Marquette 8760 .0 -M * 1.4 -M * Sylvan Road 7120 .0 .0 * 3.3 1.0 330 Younts Peak 8350 .4 .4 100* 1.0 1.0 100 ----- ----- Basin Index (%) 191* 262 POWDER RIVER Bear Trap Meadow 8200 .0 .0 * 1.3 .8 162 Cloud Peak Reservoir 9860 .0 .4 0* 1.8 1.3 138 Grave Springs 8550 .0 .0 * 1.5 1.1 136 Hansen Sawmill 8360 .2 .0 * .8 .9 89 Middle Powder 7760 1.7 .3 567* 1.3 1.1 118 Powder River Pass 9480 .9 .2 450* 1.9 1.0 190 Soldier Park 8720 .0 -M * 1.4 -M * ----- ----- Basin Index (%) 311* 139 TONGUE RIVER Big Goose 7990 .0 .1 0* .6 1.3 46 Bone Springs Div 9350 .8 1.2 67* 1.7 1.3 131 Burgess Junction 7880 .0 .4 0* 1.3 1.2 108 Dome Lake 8880 .0 .6 0* 1.2 1.3 92 Little Goose 8870 .0 -M * 1.1 -M * Sucker Creek 8880 .0 .4 0* 1.2 1.3 92 Tie Creek 6870 .0 .0 * 1.0 1.4 71 ----- ----- Basin Index (%) 30* 90 BELLE FOURCHE Cole Canyon 5910 .0 .0 * .8 1.2 67 ----- ----- Basin Index (%) * 67 CHEYENNE RIVER BASIN Blind Park 6890 .0 .0 * 1.3 1.1 118 North Rapid Creek 6130 .0 .0 * .7 1.0 70 ----- ----- Basin Index (%) * 95 UPPER N. PLATTE Arapaho Ridge 10960 1.2 .5 240* 1.8 1.2 150 Blackhall Mtn 9820 .3 -M * 1.4 -M * Columbine 9160 .0 .0 * 2.0 1.2 167 Divide Peak 8880 .1 .0 * .3 1.4 21 Joe Wright 10120 .1 .4 25* 2.0 1.5 133 Laprele Creek 8375 .0 .0 * .3 .8 38 Med Bow 10500 1.1 -M * 1.7 -M * North French Creek 10130 .0 .6 0* 1.0 1.4 71 Never Summer 10280 1.1 .5 220* 1.6 -M * Old Battle 10000 1.0 .7 143* 1.0 1.8 56 Rawah 9020 .2 .0 * 1.6 1.0 160 Sage Creek Basin 7850 .1 .0 * .4 1.1 36 Sand Lake 10050 .9 .7 129* .2 1.4 14 South Brush Creek 8440 .1 .0 * .8 1.1 73 Tower 10500 .9 .9 100* 1.4 1.8 78 Webber Springs 9250 .0 .0 * 1.3 1.4 93 Willow Creek Pass 9540 .3 .0 * 1.2 .8 150 Zirkel 9340 .1 .0 * 1.7 1.9 89 ----- ----- Basin Index (%) 142* 86 SWEETWATER Deer Park 9700 .0 .6 0* 1.2 1.4 86 Larsen Creek 9000 .2 .0 * 2.0 -M * South Pass 9040 .1 .0 * 1.1 1.0 110 ----- ----- Basin Index (%) 50* 96 LOWER N. PLATTE Casper Mtn. 7900 .0 .1 0* .6 1.1 55 Laprele Creek 8375 .0 .0 * .3 .8 38 Reno Hill 8400 .2 .0 * 1.0 1.0 100 Windy Peak 7900 .0 .0 * .2 .8 25 ----- ----- Basin Index (%) 200* 57 LARAMIE RIVER Brooklyn Lake 10240 .0 .0 * -M 1.0 * Cinnabar Park 9574 .2 .0 * .7 1.2 58 Crow Creek 8330 -M .0 * .2 1.0 20 Deadman Hill 10220 .4 .4 100* .9 1.0 90 Rawah 9020 .2 .0 * 1.6 1.0 160 Roach 9700 .1 .0 * .7 1.0 70 ----- ----- Basin Index (%) 225* 79 S. PLATTE Black Mountain 8920 .1 -M * .3 -M * Crow Creek 8330 -M .0 * .2 1.0 20 Deadman Hill 10220 .4 .4 100* .9 1.0 90 ----- ----- Basin Index (%) 100* 55 LITTLE SNAKE RIVER Battle Mountain 7440 .3 .0 * .9 .8 112 Divide Peak 8880 .1 .0 * .3 1.4 21 Elk River 8700 .2 .0 * 1.1 1.2 92 Little Snake River 8915 .2 .0 * 1.7 1.9 89 Old Battle 10000 1.0 .7 143* 1.0 1.8 56 Sage Creek Basin 7850 .1 .0 * .4 1.1 36 Sandstone RS 8150 1.0 .0 * .2 1.0 20 Whiskey Park 8950 .0 .0 * 1.3 1.3 100 ----- ----- Basin Index (%) 414* 66 UPPER GREEN RIVER Big Sandy Opening 9080 .9 .1 900* 2.0 .8 250 Blind Bull Sum 8650 .8 .1 800* 1.0 .8 125 East Rim Divide 7930 .0 .0 * 1.2 .6 200 Elkhart Park G.S. 9400 .9 .0 * 2.1 .8 262 Gros Ventre Summit 8750 .5 .5 100* 1.9 .7 271 Gunsight Pass 9820 .4 .0 * 2.4 1.0 240 Kendall R.S. 7740 .0 .0 * 1.4 .6 233 Loomis Park 8240 .1 .0 * 1.8 .8 225 New Fork Lake 8340 .1 .0 * .8 .6 133 Pocket Creek 9360 1.1 -M * 2.1 -M * Snider Basin 8060 .3 .0 * 1.6 .5 320 Spring Creek Divide 9000 .4 .0 * 1.9 .8 238 Triple Peak 8500 .4 .0 * 2.1 .9 233 ----- ----- Basin Index (%) 686* 227 LOWER GREEN RIVER Blacks Fork Jct 8870 .0 -M * .4 -M * Buck Pasture 9700 .1 -M * .7 -M * EF Blacks Fork GS 9360 .0 -M * .9 -M * Hams Fork 7840 .0 .0 * .8 .5 160 Hewinta 9519 .2 .0 * -M .9 * Hickerson Park 9145 .5 .0 * .7 .8 88 Hole-in-Rock 9150 .0 .0 * .7 .8 88 Indian Creek 9425 .1 .5 20* 1.5 .9 167 Kelley R.S. 8180 .3 .0 * 1.3 .7 186 Spirit Lk 10235 .1 -M * 1.1 -M * Steel Creek Park 10200 .3 .4 75* .8 1.1 73 ----- ----- Basin Index (%) 156* 121 UPPER BEAR RIVER Bear River RS 8777 .0 -M * .3 -M * Bug Lake 7950 .1 .0 * .3 1.0 30 Burts Miller Ranch 8000 .0 -M * .3 -M * Chalk Creek #1 8993 .2 .0 * .9 1.3 69 Hayden Fork 9212 .0 .0 * .7 1.1 64 Kelley R.S. 8180 .3 .0 * 1.3 .7 186 Lily Lake 9156 .0 .0 * .3 1.1 27 Monte Cristo 8960 .2 .0 * .4 1.2 33 Salt River Summit 7760 .0 .0 * 1.5 .7 214 ----- ----- Basin Index (%) * 76 ----------------------------------------------------------------------------- -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. ---------------------------------------------------------------------------- -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.