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 SUNDAY: OCTOBER 30 , 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 .1 100* 6.6 1.9 347 Black Bear 8170 .4 2.6 15* 9.7 3.7 262 Blind Bull Sum 8650 2.0 1.2 167* 5.2 1.9 274 Cottonwood Creek 7670 -M .8 * -M 2.5 * East Rim Divide 7930 -M .2 * -M 1.2 * Grand Targhee 9260 -M 4.4 * -M 5.0 * Granite Creek 6770 .0 .0 * 5.9 1.8 328 Grassy Lake 7265 .2 1.0 20* 10.1 3.2 316 Gros Ventre Summit 8750 -M 1.7 * -M 1.7 * Gunsight Pass 9820 .8 .9 89* 4.8 2.1 229 Lewis Lake Divide 7850 .0 .8 0* 8.9 3.0 297 Phillips Bench 8200 .4 1.0 40* 8.2 2.2 373 Salt River Summit 7760 .1 .2 50* 5.4 1.7 318 Snake River Station 6920 -M .2 * -M 2.4 * Spring Creek Divide 9000 -M 1.0 * -M 2.1 * Thumb Divide 7980 .3 .3 100* 5.5 2.1 262 Togwotee Pass 9580 2.3 2.5 92* 5.7 2.6 219 Two Ocean Plateau 9240 -M 3.0 * -M 2.8 * Willow Creek 8380 .1 .8 12* 9.0 3.4 265 Younts Peak 8350 .2 1.4 14* 4.0 2.0 200 ----- ----- Basin Index (%) 54* 282 MADISON-GALLATIN Black Bear 8170 .4 2.6 15* 9.7 3.7 262 Canyon 7870 .2 .5 40* 5.1 1.8 283 Madison Plateau 7750 .0 1.2 0* 8.3 2.7 307 West Yellowstone 6700 .1 .0 * -M 1.7 * Whiskey Creek 6800 .2 .4 50* 4.5 2.2 205 ----- ----- Basin Index (%) 19* 265 YELLOWSTONE Beartooth Lake 9360 2.1 2.5 84 3.4 2.1 162 Burnt Mtn 5880 .2 .0 * 2.9 3.2 91 Canyon 7870 .2 .5 40* 5.1 1.8 283 Cole Creek 7850 .6 2.6 23 1.8 3.0 60 Evening Star 9200 3.5 2.3 152* 8.1 3.0 270 Fisher Creek 9100 2.7 2.5 108* 7.2 3.3 218 Northeast Entrance 7350 .0 .0 * 4.4 1.7 259 Parker Peak 9400 4.0 2.5 160 6.6 2.5 264 Sylvan Lake 8420 1.3 1.5 87* 9.7 2.8 346 Thumb Divide 7980 .3 .3 100* 5.5 2.1 262 Two Ocean Plateau 9240 -M 3.0 * -M 2.8 * White Mill 8700 1.6 2.0 80* 5.3 2.6 204 Wolverine 7650 .1 .0 * 4.2 1.8 233 ----- ----- Basin Index (%) 99* 215 WIND RIVER Burroughs Creek 8750 .1 -M * 3.0 -M * Castle Creek 8400 .1 -M * 1.9 -M * Cold Springs 9630 .1 .6 17* 2.3 1.8 128 Deer Park 9700 .0 1.6 0* 3.2 2.8 114 Hobbs Park 10100 1.9 1.9 100 2.9 2.2 132 Kirwin 9550 1.0 1.6 62 2.9 1.9 153 Little Warm 9370 .2 1.1 18 3.7 1.8 206 Owl Creek 8975 .1 .6 17 1.3 1.2 108 South Pass 9040 .1 1.3 8* 2.4 2.2 109 St. Lawrence Alt 8620 .0 .7 0 2.2 1.7 129 Togwotee Pass 9580 2.3 2.5 92* 5.7 2.6 219 Townsend Creek 8700 .1 .8 12* 2.8 2.2 127 ----- ----- Basin Index (%) 46* 144 BIGHORN BASIN Bald Mtn. 9380 4.0 2.9 138 3.3 2.6 127 Bear Trap Meadow 8200 .1 .4 25* 1.8 1.6 112 Bone Springs Div 9350 1.7 2.6 65 3.5 2.6 135 Grave Springs 8550 .1 .8 12* 2.1 2.2 95 Kirwin 9550 1.0 1.6 62 2.9 1.9 153 Marquette 8760 .0 -M * 2.0 -M * Middle Powder 7760 .3 .9 33* 2.3 2.4 96 Owl Creek 8975 .1 .6 17 1.3 1.2 108 Powder River Pass 9480 .5 1.3 38 2.7 2.1 129 Shell Creek 9580 3.2 2.7 119 3.1 2.3 135 Timber Creek 7950 .1 .5 20* 1.4 2.0 70 ----- ----- Basin Index (%) 78 117 SHOSHONE RIVER Blackwater 9780 5.2 2.7 193 7.6 2.6 292 Evening Star 9200 3.5 2.3 152* 8.1 3.0 270 Marquette 8760 .0 -M * 2.0 -M * Sylvan Road 7120 .1 .2 50* 7.0 2.2 318 Younts Peak 8350 .2 1.4 14* 4.0 2.0 200 ----- ----- Basin Index (%) 136* 272 POWDER RIVER Bear Trap Meadow 8200 .1 .4 25* 1.8 1.6 112 Cloud Peak Reservoir 9860 .2 1.8 11 2.3 2.6 88 Grave Springs 8550 .1 .8 12* 2.1 2.2 95 Hansen Sawmill 8360 .0 .3 0* 1.5 1.8 83 Middle Powder 7760 .3 .9 33* 2.3 2.4 96 Powder River Pass 9480 .5 1.3 38 2.7 2.1 129 Soldier Park 8720 .3 -M * 2.2 -M * ----- ----- Basin Index (%) 22* 100 TONGUE RIVER Big Goose 7990 .2 1.0 20* 1.2 2.5 48 Bone Springs Div 9350 1.7 2.6 65 3.5 2.6 135 Burgess Junction 7880 .5 1.2 42* 1.4 2.3 61 Dome Lake 8880 .3 1.8 17 2.0 2.7 74 Little Goose 8870 .1 -M * 2.0 -M * Sucker Creek 8880 .3 1.5 20 1.5 2.6 58 Tie Creek 6870 .0 .1 0* 2.3 2.7 85 ----- ----- Basin Index (%) 37* 77 BELLE FOURCHE Cole Canyon 5910 .0 .0 * .7 1.9 37 ----- ----- Basin Index (%) * 37 CHEYENNE RIVER BASIN Blind Park 6890 .0 .1 0* 1.6 2.2 73 North Rapid Creek 6130 .1 .0 * .9 2.1 43 ----- ----- Basin Index (%) 100* 58 UPPER N. PLATTE Arapaho Ridge 10960 .6 2.8 21 2.5 3.2 78 Blackhall Mtn 9820 .2 -M * 2.7 -M * Columbine 9160 .1 .4 25* 3.0 2.6 115 Divide Peak 8880 .1 1.3 8* 1.7 3.1 55 Joe Wright 10120 .1 2.3 4* 3.1 3.3 94 Laprele Creek 8375 .0 .3 0* .6 1.9 32 Med Bow 10500 2.3 -M * 3.5 -M * North French Creek 10130 .3 2.6 12* 2.5 3.1 81 Never Summer 10280 .5 2.2 23* 2.4 -M * Old Battle 10000 .1 2.5 4* 2.4 4.0 60 Rawah 9020 .2 .2 100* 2.1 2.3 91 Sage Creek Basin 7850 .0 .1 0* .9 2.3 39 Sand Lake 10050 1.9 2.4 79* 2.0 3.0 67 South Brush Creek 8440 .1 .4 25* 1.5 2.2 68 Tower 10500 .3 3.0 10* 3.1 4.2 74 Webber Springs 9250 .0 1.0 0* 2.6 3.1 84 Willow Creek Pass 9540 .2 1.1 18* 1.5 1.9 79 Zirkel 9340 .2 .7 29* 3.9 3.7 105 ----- ----- Basin Index (%) 20* 76 SWEETWATER Deer Park 9700 .0 1.6 0* 3.2 2.8 114 Larsen Creek 9000 .3 .0 * 4.2 -M * South Pass 9040 .1 1.3 8* 2.4 2.2 109 ----- ----- Basin Index (%) 14* 112 LOWER N. PLATTE Casper Mtn. 7900 .2 1.1 18* 1.1 2.8 39 Laprele Creek 8375 .0 .3 0* .6 1.9 32 Reno Hill 8400 -M 1.2 * -M 2.6 * Windy Peak 7900 .0 .3 0* .3 1.7 18 ----- ----- Basin Index (%) 12* 31 LARAMIE RIVER Brooklyn Lake 10240 .1 1.2 8* 1.4 2.2 64 Cinnabar Park 9574 .2 1.0 20* 1.8 2.8 64 Crow Creek 8330 .0 .0 * .9 1.9 47 Deadman Hill 10220 1.1 2.1 52 2.0 2.3 87 Rawah 9020 .2 .2 100* 2.1 2.3 91 Roach 9700 .1 1.0 10* 1.4 2.4 58 ----- ----- Basin Index (%) 31* 69 S. PLATTE Black Mountain 8920 .1 -M * 1.3 -M * Crow Creek 8330 .0 .0 * .9 1.9 47 Deadman Hill 10220 1.1 2.1 52 2.0 2.3 87 ----- ----- Basin Index (%) 52* 69 LITTLE SNAKE RIVER Battle Mountain 7440 .0 .0 * 2.0 1.9 105 Divide Peak 8880 .1 1.3 8* 1.7 3.1 55 Elk River 8700 .3 .2 150* 1.8 2.4 75 Little Snake River 8915 .2 .8 25* 3.4 4.5 76 Old Battle 10000 .1 2.5 4* 2.4 4.0 60 Sage Creek Basin 7850 .0 .1 0* .9 2.3 39 Sandstone RS 8150 .0 .0 * 1.3 2.1 62 Whiskey Park 8950 .0 .8 0* 2.6 2.7 96 ----- ----- Basin Index (%) 12* 70 UPPER GREEN RIVER Big Sandy Opening 9080 1.6 1.3 123 4.3 1.7 253 Blind Bull Sum 8650 2.0 1.2 167* 5.2 1.9 274 East Rim Divide 7930 -M .2 * -M 1.2 * Elkhart Park G.S. 9400 .1 .9 11* 4.6 1.8 256 Gros Ventre Summit 8750 -M 1.7 * -M 1.7 * Gunsight Pass 9820 .8 .9 89* 4.8 2.1 229 Kendall R.S. 7740 .0 .2 0* 4.3 1.4 307 Loomis Park 8240 -M .5 * -M 1.6 * New Fork Lake 8340 .1 .4 25* 2.2 1.3 169 Pocket Creek 9360 -M -M * -M -M * Snider Basin 8060 .0 .2 0* 4.7 1.3 362 Spring Creek Divide 9000 -M 1.0 * -M 2.1 * Triple Peak 8500 1.3 1.0 130* 7.0 2.1 333 ----- ----- Basin Index (%) 97* 273 LOWER GREEN RIVER Blacks Fork Jct 8870 -M -M * -M -M * Buck Pasture 9700 .1 -M * 2.0 -M * EF Blacks Fork GS 9360 .1 -M * 1.7 -M * Hams Fork 7840 .0 .0 * 3.6 1.3 277 Hewinta 9519 .1 .0 * 1.4 2.0 70 Hickerson Park 9145 .5 .0 * 1.1 1.9 58 Hole-in-Rock 9150 .0 .0 * 1.6 2.0 80 Indian Creek 9425 1.0 1.8 56* 5.1 2.1 243 Kelley R.S. 8180 .1 .5 20* 4.6 1.8 256 Spirit Lk 10235 .1 -M * 1.8 -M * Steel Creek Park 10200 .5 1.4 36* 1.9 2.3 83 ----- ----- Basin Index (%) 59* 144 UPPER BEAR RIVER Bear River RS 8777 .1 -M * 1.3 -M * Bug Lake 7950 .2 .3 67* 3.9 2.1 186 Burts Miller Ranch 8000 .0 -M * .9 -M * Chalk Creek #1 8993 .3 1.4 21* 2.3 3.0 77 Hayden Fork 9212 -M .0 * -M 2.4 * Kelley R.S. 8180 .1 .5 20* 4.6 1.8 256 Lily Lake 9156 .0 .6 0* 1.4 2.4 58 Monte Cristo 8960 .2 .4 50* 3.6 2.7 133 Salt River Summit 7760 .1 .2 50* 5.4 1.7 318 ----- ----- Basin Index (%) 26* 155 ----------------------------------------------------------------------------- -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.