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: OCTOBER 24 , 2016 ------------------------------------------------------------------------------ BASIN ELEV. SNOW WATER EQUIVALENT TOTAL PRECIPITATION Data Site Name (Ft) % % Current Median Median Current Average Avg ------------------------------------------------------------------------------ WYOMING SNAKE RIVER Base Camp 7030 .8 .0 * 5.3 1.5 353 Black Bear 8170 1.6 2.0 80* 6.4 2.9 221 Blind Bull Sum 8650 2.5 .8 312* 4.2 1.5 280 Cottonwood Creek 7670 -M .2 * -M 1.9 * East Rim Divide 7930 .3 .0 * 3.0 1.0 300 Grand Targhee 9260 8.1 4.0 202* 9.6 4.6 209 Granite Creek 6770 .6 .0 * 4.4 1.4 314 Grassy Lake 7265 1.3 .4 325* 8.1 2.5 324 Gros Ventre Summit 8750 .9 1.2 75* 3.4 1.3 262 Gunsight Pass 9820 1.3 .7 186* 4.2 1.8 233 Lewis Lake Divide 7850 1.5 .3 500* 6.8 2.4 283 Phillips Bench 8200 1.3 .2 650* 6.4 1.8 356 Salt River Summit 7760 .9 .0 * 4.1 1.3 315 Snake River Station 6920 .3 .0 * 5.4 2.1 257 Spring Creek Divide 9000 2.6 .7 371* 5.5 1.6 344 Thumb Divide 7980 .8 .0 * 4.3 1.7 253 Togwotee Pass 9580 2.6 2.1 124* 4.7 2.0 235 Two Ocean Plateau 9240 -M 2.5 * -M 2.3 * Willow Creek 8380 1.7 .4 425* 7.4 2.7 274 Younts Peak 8350 -M 1.0 * -M 1.7 * ----- ----- Basin Index (%) 227* 273 MADISON-GALLATIN Black Bear 8170 1.6 2.0 80* 6.4 2.9 221 Canyon 7870 .6 .3 200* 3.6 1.5 240 Madison Plateau 7750 .9 .8 112* 5.8 2.1 276 West Yellowstone 6700 .0 .0 * 3.6 1.5 240 Whiskey Creek 6800 .0 .2 0* 3.6 1.8 200 ----- ----- Basin Index (%) 94* 235 YELLOWSTONE Beartooth Lake 9360 1.6 1.9 84* 2.5 1.7 147 Burnt Mtn 5880 .0 .0 * 2.0 2.8 71 Canyon 7870 .6 .3 200* 3.6 1.5 240 Cole Creek 7850 .2 1.7 12* 1.7 2.4 71 Evening Star 9200 3.6 1.6 225* 7.1 2.4 296 Fisher Creek 9100 2.6 1.8 144* 5.4 2.7 200 Northeast Entrance 7350 .1 .0 * 2.9 1.4 207 Parker Peak 9400 3.4 1.8 189* 5.6 2.1 267 Sylvan Lake 8420 2.7 1.1 245* 8.1 2.3 352 Thumb Divide 7980 .8 .0 * 4.3 1.7 253 Two Ocean Plateau 9240 -M 2.5 * -M 2.3 * White Mill 8700 2.0 1.5 133* 3.4 2.1 162 Wolverine 7650 .0 .0 * 3.3 1.5 220 ----- ----- Basin Index (%) 150* 203 WIND RIVER Burroughs Creek 8750 .0 -M * 2.4 -M * Castle Creek 8400 -M -M * 1.4 -M * Cold Springs 9630 .6 .3 200* 2.1 1.5 140 Deer Park 9700 1.2 1.4 86* 2.8 2.2 127 Hobbs Park 10100 2.0 1.3 154* 2.9 1.8 161 Kirwin 9550 .9 1.2 75 2.1 1.5 140 Little Warm 9370 1.0 .8 125* 3.2 1.4 229 Owl Creek 8975 .0 .4 0* 1.1 1.0 110 South Pass 9040 .9 .7 129* 2.0 1.8 111 St. Lawrence Alt 8620 .0 .3 0* 2.0 1.4 143 Togwotee Pass 9580 2.6 2.1 124* 4.7 2.0 235 Townsend Creek 8700 .8 .3 267* 2.2 1.8 122 ----- ----- Basin Index (%) 114* 153 BIGHORN BASIN Bald Mtn. 9380 2.8 2.3 122 2.3 2.2 105 Bear Trap Meadow 8200 .4 .3 133* 1.8 1.4 129 Bone Springs Div 9350 1.2 1.9 63 2.3 2.2 105 Grave Springs 8550 .5 .6 83* 1.9 1.8 106 Kirwin 9550 .9 1.2 75 2.1 1.5 140 Marquette 8760 .3 -M * 1.6 -M * Middle Powder 7760 .2 .6 33* 2.1 1.9 111 Owl Creek 8975 .0 .4 0* 1.1 1.0 110 Powder River Pass 9480 1.1 .9 122* 2.5 1.8 139 Shell Creek 9580 3.1 2.4 129 2.9 2.0 145 Timber Creek 7950 .0 .2 0* 1.0 1.6 62 ----- ----- Basin Index (%) 94* 115 SHOSHONE RIVER Blackwater 9780 4.5 2.0 225* 6.6 2.2 300 Evening Star 9200 3.6 1.6 225* 7.1 2.4 296 Marquette 8760 .3 -M * 1.6 -M * Sylvan Road 7120 .0 .0 * 6.0 1.8 333 Younts Peak 8350 -M 1.0 * -M 1.7 * ----- ----- Basin Index (%) 225* 308 POWDER RIVER Bear Trap Meadow 8200 .4 .3 133* 1.8 1.4 129 Cloud Peak Reservoir 9860 .2 1.3 15* 2.4 2.3 104 Grave Springs 8550 .5 .6 83* 1.9 1.8 106 Hansen Sawmill 8360 .2 .1 200* 1.0 1.5 67 Middle Powder 7760 .2 .6 33* 2.1 1.9 111 Powder River Pass 9480 1.1 .9 122* 2.5 1.8 139 Soldier Park 8720 -M -M * 1.5 -M * ----- ----- Basin Index (%) 68* 109 TONGUE RIVER Big Goose 7990 .0 .7 0* .7 2.1 33 Bone Springs Div 9350 1.2 1.9 63 2.3 2.2 105 Burgess Junction 7880 .0 .8 0* 1.0 1.9 53 Dome Lake 8880 .3 1.2 25 1.6 2.2 73 Little Goose 8870 -M -M * 1.5 -M * Sucker Creek 8880 .0 1.1 0* 1.2 2.1 57 Tie Creek 6870 .1 .0 * 1.1 2.3 48 ----- ----- Basin Index (%) 28* 62 BELLE FOURCHE Cole Canyon 5910 .0 .0 * .7 1.5 47 ----- ----- Basin Index (%) * 47 CHEYENNE RIVER BASIN Blind Park 6890 .0 .0 * 1.5 1.8 83 North Rapid Creek 6130 .0 .0 * .8 1.6 50 ----- ----- Basin Index (%) * 68 UPPER N. PLATTE Arapaho Ridge 10960 1.0 2.1 48* 2.0 2.5 80 Blackhall Mtn 9820 1.1 -M * 2.5 -M * Columbine 9160 .0 .1 0* 2.8 2.0 140 Divide Peak 8880 .3 .8 38* 1.5 2.4 62 Joe Wright 10120 .1 1.4 7* 2.7 2.6 104 Laprele Creek 8375 .0 .2 0* .4 1.5 27 Med Bow 10500 2.3 -M * 3.4 -M * North French Creek 10130 1.1 2.0 55* 2.2 2.5 88 Never Summer 10280 1.1 1.5 73* 2.1 -M * Old Battle 10000 1.3 1.8 72* 2.0 3.1 65 Rawah 9020 .2 .1 200* 2.0 1.8 111 Sage Creek Basin 7850 .1 .0 * .8 1.8 44 Sand Lake 10050 2.1 1.8 117* 1.9 2.4 79 South Brush Creek 8440 .0 .3 0* 1.4 1.8 78 Tower 10500 1.4 2.3 61* 2.7 3.2 84 Webber Springs 9250 .4 .6 67* 2.2 2.4 92 Willow Creek Pass 9540 .3 .6 50* 1.4 1.5 93 Zirkel 9340 .2 .4 50* 2.9 3.1 94 ----- ----- Basin Index (%) 60* 84 SWEETWATER Deer Park 9700 1.2 1.4 86* 2.8 2.2 127 Larsen Creek 9000 .2 .0 * 3.7 -M * South Pass 9040 .9 .7 129* 2.0 1.8 111 ----- ----- Basin Index (%) 110* 120 LOWER N. PLATTE Casper Mtn. 7900 .2 .4 50* 1.0 2.0 50 Laprele Creek 8375 .0 .2 0* .4 1.5 27 Reno Hill 8400 -M .9 * -M 2.0 * Windy Peak 7900 .0 .0 * .3 1.3 23 ----- ----- Basin Index (%) 33* 35 LARAMIE RIVER Brooklyn Lake 10240 .6 .7 86* 1.0 1.8 56 Cinnabar Park 9574 1.0 .8 125* 1.8 2.2 82 Crow Creek 8330 .0 .0 * .9 1.5 60 Deadman Hill 10220 1.2 1.5 80* 2.0 1.9 105 Rawah 9020 .2 .1 200* 2.0 1.8 111 Roach 9700 .2 .5 40* 1.2 1.8 67 ----- ----- Basin Index (%) 89* 81 S. PLATTE Black Mountain 8920 .6 -M * 1.3 -M * Crow Creek 8330 .0 .0 * .9 1.5 60 Deadman Hill 10220 1.2 1.5 80* 2.0 1.9 105 ----- ----- Basin Index (%) 80* 85 LITTLE SNAKE RIVER Battle Mountain 7440 .0 .0 * 1.7 1.4 121 Divide Peak 8880 .3 .8 38* 1.5 2.4 62 Elk River 8700 .2 .0 * 1.7 1.9 89 Little Snake River 8915 .1 .7 14* 2.9 3.5 83 Old Battle 10000 1.3 1.8 72* 2.0 3.1 65 Sage Creek Basin 7850 .1 .0 * .8 1.8 44 Sandstone RS 8150 .0 .0 * 1.1 1.6 69 Whiskey Park 8950 .0 .4 0* 2.2 2.1 105 ----- ----- Basin Index (%) 54* 78 UPPER GREEN RIVER Big Sandy Opening 9080 1.7 .8 212* 3.8 1.4 271 Blind Bull Sum 8650 2.5 .8 312* 4.2 1.5 280 East Rim Divide 7930 .3 .0 * 3.0 1.0 300 Elkhart Park G.S. 9400 1.4 .6 233* 3.6 1.4 257 Gros Ventre Summit 8750 .9 1.2 75* 3.4 1.3 262 Gunsight Pass 9820 1.3 .7 186* 4.2 1.8 233 Kendall R.S. 7740 .2 .0 * 3.2 1.1 291 Loomis Park 8240 .8 .2 400* 3.9 1.3 300 New Fork Lake 8340 .6 .0 * 1.8 1.0 180 Pocket Creek 9360 -M -M * -M -M * Snider Basin 8060 .9 .0 * 4.0 1.0 400 Spring Creek Divide 9000 2.6 .7 371* 5.5 1.6 344 Triple Peak 8500 1.9 .5 380* 6.0 1.7 353 ----- ----- Basin Index (%) 275* 289 LOWER GREEN RIVER Blacks Fork Jct 8870 .0 -M * 1.1 -M * Buck Pasture 9700 .1 -M * 1.7 -M * EF Blacks Fork GS 9360 .1 -M * 1.5 -M * Hams Fork 7840 .0 .0 * 2.9 1.0 290 Hewinta 9519 .0 .0 * 1.3 1.6 81 Hickerson Park 9145 .5 .0 * 1.1 1.4 79 Hole-in-Rock 9150 .0 .0 * 1.5 1.5 100 Indian Creek 9425 1.9 1.1 173* 4.2 1.6 262 Kelley R.S. 8180 1.1 .2 550* 3.6 1.4 257 Spirit Lk 10235 .2 -M * 1.5 -M * Steel Creek Park 10200 1.0 .9 111* 1.7 1.8 94 ----- ----- Basin Index (%) 205* 158 UPPER BEAR RIVER Bear River RS 8777 .0 -M * 1.0 -M * Bug Lake 7950 .8 .0 * 3.1 1.7 182 Burts Miller Ranch 8000 .0 -M * .8 -M * Chalk Creek #1 8993 .4 .7 57* 1.9 2.3 83 Hayden Fork 9212 .0 .0 * 1.4 2.0 70 Kelley R.S. 8180 1.1 .2 550* 3.6 1.4 257 Lily Lake 9156 .1 .5 20* 1.1 1.9 58 Monte Cristo 8960 1.7 .0 * 3.3 2.1 157 Salt River Summit 7760 .9 .0 * 4.1 1.3 315 ----- ----- Basin Index (%) 357* 146 ----------------------------------------------------------------------------- -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.