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 SATURDAY: OCTOBER 8 , 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 * 2.7 .5 540 Black Bear 8170 1.0 .1 1000* 3.0 1.0 300 Blind Bull Sum 8650 .7 .0 * .8 .5 160 Cottonwood Creek 7670 .8 .0 * 2.3 .7 329 East Rim Divide 7930 .0 .0 * 1.1 .4 275 Grand Targhee 9260 5.1 1.1 464* -M 1.7 * Granite Creek 6770 .0 .0 * 1.8 .4 450 Grassy Lake 7265 1.9 .0 * 3.8 .9 422 Gros Ventre Summit 8750 .3 .0 * 1.8 .4 450 Gunsight Pass 9820 .8 .0 * 2.1 .7 300 Lewis Lake Divide 7850 .3 .0 * 2.4 .8 300 Phillips Bench 8200 1.1 .0 * 3.1 .5 620 Salt River Summit 7760 .1 .0 * 1.4 .4 350 Snake River Station 6920 .2 .0 * 2.6 .7 371 Spring Creek Divide 9000 .8 .0 * 1.8 .5 360 Thumb Divide 7980 .6 .0 * 1.7 .7 243 Togwotee Pass 9580 1.5 .1 1500* 2.5 .6 417 Two Ocean Plateau 9240 -M .4 * -M .8 * Willow Creek 8380 1.0 .0 * 2.9 .9 322 Younts Peak 8350 .1 .1 100* .4 .6 67 ----- ----- Basin Index (%) 1171* 341 MADISON-GALLATIN Black Bear 8170 1.0 .1 1000* 3.0 1.0 300 Canyon 7870 .6 .0 * 1.7 .5 340 Madison Plateau 7750 .0 .0 * 2.3 .7 329 West Yellowstone 6700 .0 .0 * 1.5 .5 300 Whiskey Creek 6800 .1 .0 * 1.9 .6 317 ----- ----- Basin Index (%) 1700* 315 YELLOWSTONE Beartooth Lake 9360 .4 .6 67* .9 .5 180 Burnt Mtn 5880 .1 .0 * 1.3 1.3 100 Canyon 7870 .6 .0 * 1.7 .5 340 Cole Creek 7850 1.2 .7 171* 1.1 1.0 110 Evening Star 9200 1.2 .2 600* 2.7 .8 338 Fisher Creek 9100 .3 .0 * 1.7 .8 212 Northeast Entrance 7350 .2 .0 * 1.4 .5 280 Parker Peak 9400 1.3 .5 260* 2.3 .8 288 Sylvan Lake 8420 2.5 .0 * 4.0 .8 500 Thumb Divide 7980 .6 .0 * 1.7 .7 243 Two Ocean Plateau 9240 -M .4 * -M .8 * White Mill 8700 .3 .0 * 1.1 .7 157 Wolverine 7650 .0 .0 * 1.4 .5 280 ----- ----- Basin Index (%) 435* 239 WIND RIVER Burroughs Creek 8750 .1 -M * .8 -M * Castle Creek 8400 .0 -M * .7 -M * Cold Springs 9630 .2 .0 * .7 .6 117 Deer Park 9700 .9 .0 * 1.1 .8 138 Hobbs Park 10100 .1 .0 * .9 .6 150 Kirwin 9550 .1 .1 100* .8 .6 133 Little Warm 9370 .6 .0 * 1.5 .5 300 Owl Creek 8975 .1 .0 * .8 .4 200 South Pass 9040 .2 .0 * .9 .6 150 St. Lawrence Alt 8620 .0 .0 * .4 .5 80 Togwotee Pass 9580 1.5 .1 1500* 2.5 .6 417 Townsend Creek 8700 .0 .0 * .9 .6 150 ----- ----- Basin Index (%) 1850* 181 BIGHORN BASIN Bald Mtn. 9380 1.9 .8 238* 1.2 .7 171 Bear Trap Meadow 8200 .6 .0 * 1.1 .4 275 Bone Springs Div 9350 .8 .7 114* 1.2 .8 150 Grave Springs 8550 .9 .0 * 1.3 .8 162 Kirwin 9550 .1 .1 100* .8 .6 133 Marquette 8760 .2 -M * 1.5 -M * Middle Powder 7760 2.4 .0 * 1.0 .7 143 Owl Creek 8975 .1 .0 * .8 .4 200 Powder River Pass 9480 .9 .0 * 1.7 .6 283 Shell Creek 9580 2.1 .9 233* 1.8 .7 257 Timber Creek 7950 .0 .0 * .7 .7 100 ----- ----- Basin Index (%) 392* 181 SHOSHONE RIVER Blackwater 9780 1.9 .6 317* 3.4 .8 425 Evening Star 9200 1.2 .2 600* 2.7 .8 338 Marquette 8760 .2 -M * 1.5 -M * Sylvan Road 7120 .1 .0 * 2.6 .7 371 Younts Peak 8350 .1 .1 100* .4 .6 67 ----- ----- Basin Index (%) 367* 314 POWDER RIVER Bear Trap Meadow 8200 .6 .0 * 1.1 .4 275 Cloud Peak Reservoir 9860 .1 .0 * 1.4 .7 200 Grave Springs 8550 .9 .0 * 1.3 .8 162 Hansen Sawmill 8360 .1 .0 * .7 .5 140 Middle Powder 7760 2.4 .0 * 1.0 .7 143 Powder River Pass 9480 .9 .0 * 1.7 .6 283 Soldier Park 8720 .2 -M * 1.2 -M * ----- ----- Basin Index (%) * 195 TONGUE RIVER Big Goose 7990 .1 .0 * .4 .8 50 Bone Springs Div 9350 .8 .7 114* 1.2 .8 150 Burgess Junction 7880 .1 .1 100* .7 .7 100 Dome Lake 8880 .0 .2 0* .7 .8 88 Little Goose 8870 .2 -M * 1.0 -M * Sucker Creek 8880 .4 .1 400* .9 .7 129 Tie Creek 6870 .1 .0 * .8 .9 89 ----- ----- Basin Index (%) 136* 100 BELLE FOURCHE Cole Canyon 5910 .0 .0 * .5 .6 83 ----- ----- Basin Index (%) * 83 CHEYENNE RIVER BASIN Blind Park 6890 .0 .0 * 1.3 .8 162 North Rapid Creek 6130 .0 .0 * .6 .6 100 ----- ----- Basin Index (%) * 136 UPPER N. PLATTE Arapaho Ridge 10960 .5 .1 500* .6 .6 100 Blackhall Mtn 9820 .7 -M * .9 -M * Columbine 9160 .0 .0 * .5 .7 71 Divide Peak 8880 .0 .0 * .1 .9 11 Joe Wright 10120 .5 .0 * .9 .8 112 Laprele Creek 8375 .0 .0 * .1 .5 20 Med Bow 10500 1.0 -M * 1.3 -M * North French Creek 10130 .4 .1 400* .7 .8 88 Never Summer 10280 .4 .0 * .7 -M * Old Battle 10000 1.2 .0 * .5 1.1 45 Rawah 9020 .6 .0 * .8 .6 133 Sage Creek Basin 7850 .0 .0 * .4 .7 57 Sand Lake 10050 .4 .0 * .0 .8 0 South Brush Creek 8440 .0 .0 * .3 .6 50 Tower 10500 .9 .0 * .4 1.1 36 Webber Springs 9250 .3 .0 * 1.1 .8 138 Willow Creek Pass 9540 .3 .0 * .4 .4 100 Zirkel 9340 .1 .0 * .7 1.1 64 ----- ----- Basin Index (%) 2800* 65 SWEETWATER Deer Park 9700 .9 .0 * 1.1 .8 138 Larsen Creek 9000 .3 .0 * 2.0 -M * South Pass 9040 .2 .0 * .9 .6 150 ----- ----- Basin Index (%) * 143 LOWER N. PLATTE Casper Mtn. 7900 .0 .0 * .2 .6 33 Laprele Creek 8375 .0 .0 * .1 .5 20 Reno Hill 8400 .8 .0 * .7 .6 117 Windy Peak 7900 .0 .0 * .2 .4 50 ----- ----- Basin Index (%) * 57 LARAMIE RIVER Brooklyn Lake 10240 .0 .0 * -M .5 * Cinnabar Park 9574 .1 .0 * .6 .6 100 Crow Creek 8330 -M .0 * .3 .3 100 Deadman Hill 10220 .5 .0 * .6 .5 120 Rawah 9020 .6 .0 * .8 .6 133 Roach 9700 .2 .0 * .3 .5 60 ----- ----- Basin Index (%) * 104 S. PLATTE Black Mountain 8920 .2 -M * .2 -M * Crow Creek 8330 -M .0 * .3 .3 100 Deadman Hill 10220 .5 .0 * .6 .5 120 ----- ----- Basin Index (%) * 112 LITTLE SNAKE RIVER Battle Mountain 7440 .3 .0 * .7 .6 117 Divide Peak 8880 .0 .0 * .1 .9 11 Elk River 8700 .2 .0 * .6 .7 86 Little Snake River 8915 .0 .0 * 1.1 1.0 110 Old Battle 10000 1.2 .0 * .5 1.1 45 Sage Creek Basin 7850 .0 .0 * .4 .7 57 Sandstone RS 8150 1.0 .0 * -M .7 * Whiskey Park 8950 .2 .0 * .9 .8 112 ----- ----- Basin Index (%) * 74 UPPER GREEN RIVER Big Sandy Opening 9080 .7 .0 * 1.9 .4 475 Blind Bull Sum 8650 .7 .0 * .8 .5 160 East Rim Divide 7930 .0 .0 * 1.1 .4 275 Elkhart Park G.S. 9400 1.2 .0 * 2.1 .5 420 Gros Ventre Summit 8750 .3 .0 * 1.8 .4 450 Gunsight Pass 9820 .8 .0 * 2.1 .7 300 Kendall R.S. 7740 .0 .0 * 1.2 .4 300 Loomis Park 8240 .0 .0 * 1.7 .4 425 New Fork Lake 8340 .1 .0 * .6 .4 150 Pocket Creek 9360 1.1 -M * 1.8 -M * Snider Basin 8060 .0 .0 * 1.2 .2 600 Spring Creek Divide 9000 .8 .0 * 1.8 .5 360 Triple Peak 8500 .2 .0 * 1.7 .5 340 ----- ----- Basin Index (%) * 340 LOWER GREEN RIVER Blacks Fork Jct 8870 .0 -M * .4 -M * Buck Pasture 9700 .0 -M * .8 -M * EF Blacks Fork GS 9360 .0 -M * .8 -M * Hams Fork 7840 .0 .0 * .7 .3 233 Hewinta 9519 .0 .0 * .5 .6 83 Hickerson Park 9145 .0 .0 * .5 .5 100 Hole-in-Rock 9150 .0 .0 * .6 .5 120 Indian Creek 9425 .9 .0 * 1.4 .5 280 Kelley R.S. 8180 .1 .0 * 1.2 .4 300 Spirit Lk 10235 .0 -M * .9 -M * Steel Creek Park 10200 .6 .0 * .8 .6 133 ----- ----- Basin Index (%) * 168 UPPER BEAR RIVER Bear River RS 8777 .0 -M * .3 -M * Bug Lake 7950 .1 .0 * .3 .6 50 Burts Miller Ranch 8000 .4 -M * .2 -M * Chalk Creek #1 8993 .3 .0 * 1.0 .8 125 Hayden Fork 9212 .1 .0 * .7 .7 100 Kelley R.S. 8180 .1 .0 * 1.2 .4 300 Lily Lake 9156 .0 .0 * .4 .6 67 Monte Cristo 8960 .1 .0 * .5 .7 71 Salt River Summit 7760 .1 .0 * 1.4 .4 350 ----- ----- Basin Index (%) * 131 ----------------------------------------------------------------------------- -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.