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: JUNE 11 , 2017 ------------------------------------------------------------------------------ BASIN ELEV. SNOW WATER EQUIVALENT TOTAL PRECIPITATION Data Site Name (Ft) % % Current Median Median Current Average Avg ------------------------------------------------------------------------------ WYOMING SNAKE RIVER Base Camp 7030 .0 .0 * 43.7 26.8 163 Black Bear 8170 22.3 15.5 144 62.7 48.1 130 Blind Bull Sum 8650 -M 3.7 * 40.6 25.3 160 Cottonwood Creek 7670 .0 .0 * 46.9 32.8 143 East Rim Divide 7930 .1 .0 * 24.3 15.8 154 Grand Targhee 9260 31.5 36.1 87 54.3 41.5 131 Granite Creek 6770 .0 .0 * 40.8 25.0 163 Grassy Lake 7265 -M .0 * 63.7 45.5 140 Gros Ventre Summit 8750 -M .0 * 27.7 18.0 154 Gunsight Pass 9820 5.2 .0 * 30.2 19.7 153 Lewis Lake Divide 7850 7.7 .0 * 60.6 44.2 137 Phillips Bench 8200 8.5 .9 944* 52.3 35.7 146 Salt River Summit 7760 .0 .0 * 32.6 21.7 150 Snake River Station 6920 .0 .0 * 40.1 29.0 138 Spring Creek Divide 9000 14.9 1.9 784* 46.7 30.2 155 Thumb Divide 7980 .1 .0 * 31.7 25.0 127 Togwotee Pass 9580 19.0 16.6 114 45.3 32.2 141 Two Ocean Plateau 9240 -M 19.7 * -M 35.9 * Willow Creek 8380 -M .0 * 60.6 44.3 137 Younts Peak 8350 .1 .0 * 35.5 21.9 162 ----- ----- Basin Index (%) 154* 144 MADISON-GALLATIN Black Bear 8170 22.3 15.5 144 62.7 48.1 130 Canyon 7870 .0 .0 * 30.3 22.0 138 Madison Plateau 7750 .0 .0 * 42.0 34.6 121 West Yellowstone 6700 .0 .0 * 27.3 19.8 138 Whiskey Creek 6800 .0 .0 * 32.1 27.1 118 ----- ----- Basin Index (%) 144* 128 YELLOWSTONE Beartooth Lake 9360 23.3 11.6 201 33.6 26.5 127 Burnt Mtn 5880 .0 .0 * 24.2 22.6 107 Canyon 7870 .0 .0 * 30.3 22.0 138 Cole Creek 7850 .0 1.4 0* 20.1 22.9 88 Evening Star 9200 18.5 12.2 152 51.5 36.9 140 Fisher Creek 9100 26.2 21.8 120 54.0 42.0 129 Northeast Entrance 7350 .0 .0 * 24.4 17.9 136 Parker Peak 9400 13.7 8.6 159 42.1 25.4 166 Sylvan Lake 8420 .3 .4 75* 44.4 31.1 143 Thumb Divide 7980 .1 .0 * 31.7 25.0 127 Two Ocean Plateau 9240 -M 19.7 * -M 35.9 * White Mill 8700 12.2 11.0 111 40.6 32.1 126 Wolverine 7650 -M .0 * 25.0 17.4 144 ----- ----- Basin Index (%) 141* 131 WIND RIVER Burroughs Creek 8750 .0 -M * 32.2 -M * Castle Creek 8400 .0 -M * 19.5 -M * Cold Springs 9630 .0 .0 * 25.2 16.3 155 Deer Park 9700 19.0 .0 * 47.8 28.4 168 Hobbs Park 10100 15.9 .2 7950* 38.4 21.6 178 Kirwin 9550 .2 .0 * 31.3 18.2 172 Little Warm 9370 .0 .0 * 28.7 19.5 147 Owl Creek 8975 .0 .0 * 18.1 11.7 155 South Pass 9040 6.6 .0 * 38.8 24.6 158 St. Lawrence Alt 8620 .0 .0 * 23.5 15.5 152 Togwotee Pass 9580 19.0 16.6 114 45.3 32.2 141 Townsend Creek 8700 -M .0 * 33.1 19.1 173 ----- ----- Basin Index (%) 361* 159 BIGHORN BASIN Bald Mtn. 9380 5.2 7.1 73 24.0 24.9 96 Bear Trap Meadow 8200 .0 .0 * 17.8 14.9 119 Bone Springs Div 9350 .0 .8 0* 23.8 23.7 100 Grave Springs 8550 .0 .0 * 16.0 17.1 94 Kirwin 9550 .2 .0 * 31.3 18.2 172 Marquette 8760 .0 -M * 27.2 -M * Middle Powder 7760 .0 .0 * 16.9 18.5 91 Owl Creek 8975 .0 .0 * 18.1 11.7 155 Powder River Pass 9480 .0 .0 * 21.8 20.2 108 Shell Creek 9580 .1 2.2 5 20.8 21.3 98 Timber Creek 7950 .0 .0 * 19.2 14.8 130 ----- ----- Basin Index (%) 54* 113 SHOSHONE RIVER Blackwater 9780 26.5 14.5 183 49.1 28.8 170 Evening Star 9200 18.5 12.2 152 51.5 36.9 140 Marquette 8760 .0 -M * 27.2 -M * Sylvan Road 7120 .0 .0 * 33.7 22.6 149 Younts Peak 8350 .1 .0 * 35.5 21.9 162 ----- ----- Basin Index (%) 169* 154 POWDER RIVER Bear Trap Meadow 8200 .0 .0 * 17.8 14.9 119 Cloud Peak Reservoir 9860 2.1 .1 2100* 29.8 22.6 132 Grave Springs 8550 .0 .0 * 16.0 17.1 94 Hansen Sawmill 8360 .0 .0 * 18.3 15.5 118 Middle Powder 7760 .0 .0 * 16.9 18.5 91 Powder River Pass 9480 .0 .0 * 21.8 20.2 108 Soldier Park 8720 .0 -M * 23.5 -M * ----- ----- Basin Index (%) 2100* 111 TONGUE RIVER Big Goose 7990 .0 .0 * 22.6 19.3 117 Bone Springs Div 9350 .0 .8 0* 23.8 23.7 100 Burgess Junction 7880 .0 .0 * 21.2 19.2 110 Dome Lake 8880 -M .0 * 25.8 21.6 119 Little Goose 8870 .0 -M * 26.5 -M * Sucker Creek 8880 .0 .0 * 23.2 22.9 101 Tie Creek 6870 .1 .0 * 25.4 20.1 126 ----- ----- Basin Index (%) 12* 112 BELLE FOURCHE Cole Canyon 5910 .0 .0 * 14.6 18.5 79 ----- ----- Basin Index (%) * 79 CHEYENNE RIVER BASIN Blind Park 6890 .0 .0 * 15.9 19.9 80 North Rapid Creek 6130 .0 .0 * 16.3 17.6 93 ----- ----- Basin Index (%) * 86 UPPER N. PLATTE Arapaho Ridge 10960 8.4 1.6 525* 33.6 30.5 110 Blackhall Mtn 9820 11.6 -M * 45.8 -M * Columbine 9160 .1 .0 * 35.5 32.2 110 Divide Peak 8880 .0 .0 * 28.7 28.2 102 Joe Wright 10120 5.2 7.2 72 38.3 35.4 108 Laprele Creek 8375 .0 .0 * 19.1 19.0 101 Med Bow 10500 22.7 -M * 45.0 -M * North French Creek 10130 7.6 13.3 57 37.2 36.3 102 Never Summer 10280 9.8 9.1 108 26.7 -M * Old Battle 10000 25.0 10.0 250 47.2 44.7 106 Rawah 9020 .1 .0 * 23.5 20.8 113 Sage Creek Basin 7850 -M .0 * 19.5 18.6 105 Sand Lake 10050 23.4 13.4 175 35.8 34.5 104 South Brush Creek 8440 .0 .0 * 18.5 22.0 84 Tower 10500 24.7 26.6 93 56.6 50.6 112 Webber Springs 9250 .1 .0 * 40.6 33.9 120 Willow Creek Pass 9540 .1 .0 * 24.0 19.3 124 Zirkel 9340 .0 .0 * 51.0 35.5 144 ----- ----- Basin Index (%) 129* 110 SWEETWATER Deer Park 9700 19.0 .0 * 47.8 28.4 168 Larsen Creek 9000 .0 .0 * 28.3 -M * South Pass 9040 6.6 .0 * 38.8 24.6 158 ----- ----- Basin Index (%) * 163 LOWER N. PLATTE Casper Mtn. 7900 .0 .0 * 23.8 22.9 104 Laprele Creek 8375 .0 .0 * 19.1 19.0 101 Reno Hill 8400 .0 .0 * 23.6 23.7 100 Windy Peak 7900 .1 .0 * 19.1 17.2 111 ----- ----- Basin Index (%) * 103 LARAMIE RIVER Brooklyn Lake 10240 .3 .0 * 30.8 29.3 105 Cinnabar Park 9574 .0 .0 * 30.2 31.6 96 Crow Creek 8330 .0 .0 * 16.4 17.9 92 Deadman Hill 10220 4.3 .3 1433* 30.4 24.9 122 Rawah 9020 .1 .0 * 23.5 20.8 113 Roach 9700 .0 .0 * 29.0 26.7 109 ----- ----- Basin Index (%) 1567* 106 S. PLATTE Black Mountain 8920 -M -M * 21.3 -M * Crow Creek 8330 .0 .0 * 16.4 17.9 92 Deadman Hill 10220 4.3 .3 1433* 30.4 24.9 122 ----- ----- Basin Index (%) 1433* 109 LITTLE SNAKE RIVER Battle Mountain 7440 .0 .0 * 21.1 19.8 107 Divide Peak 8880 .0 .0 * 28.7 28.2 102 Elk River 8700 .0 .0 * 24.9 26.3 95 Little Snake River 8915 .1 .0 * 46.1 37.5 123 Old Battle 10000 25.0 10.0 250 47.2 44.7 106 Sage Creek Basin 7850 -M .0 * 19.5 18.6 105 Sandstone RS 8150 .0 .0 * 20.5 24.0 85 Whiskey Park 8950 .1 .0 * 37.7 35.9 105 ----- ----- Basin Index (%) 252* 105 UPPER GREEN RIVER Big Sandy Opening 9080 .0 .0 * 27.6 18.9 146 Blind Bull Sum 8650 -M 3.7 * 40.6 25.3 160 East Rim Divide 7930 .1 .0 * 24.3 15.8 154 Elkhart Park G.S. 9400 .0 .0 * 28.0 18.9 148 Gros Ventre Summit 8750 -M .0 * 27.7 18.0 154 Gunsight Pass 9820 5.2 .0 * 30.2 19.7 153 Kendall R.S. 7740 .0 .0 * 32.1 18.4 174 Loomis Park 8240 .2 .0 * 35.9 22.4 160 New Fork Lake 8340 .0 .0 * 23.3 15.5 150 Pocket Creek 9360 -M -M * -M -M * Snider Basin 8060 .0 .0 * 30.2 18.2 166 Spring Creek Divide 9000 14.9 1.9 784* 46.7 30.2 155 Triple Peak 8500 .1 .0 * 47.0 32.5 145 ----- ----- Basin Index (%) 1079* 155 LOWER GREEN RIVER Blacks Fork Jct 8869 .0 -M * 20.0 -M * Buck Pasture 9632 .0 -M * 28.7 -M * EF Blacks Fork GS 9360 -M -M * 24.2 -M * Hams Fork 7840 .0 .0 * 25.1 16.0 157 Hewinta 9500 .0 .0 * 22.4 19.3 116 Hickerson Park 9122 .0 .0 * 16.6 15.0 111 Hole-in-Rock 9168 .0 .0 * 17.4 14.6 119 Indian Creek 9425 12.8 2.1 610* 47.4 29.0 163 Kelley R.S. 8180 .0 .0 * 35.8 23.7 151 Spirit Lk 10235 .0 -M * 22.6 -M * Steel Creek Park 10158 .0 1.7 0* 26.9 22.8 118 ----- ----- Basin Index (%) 337* 136 UPPER BEAR RIVER Bear River RS 8777 .0 -M * 22.4 -M * Bug Lake 7987 .8 .0 * 39.2 25.3 155 Burts Miller Ranch 8000 .0 -M * 12.6 -M * Chalk Creek #1 9171 .0 .0 * 42.8 33.1 129 Hayden Fork 9130 .0 .0 * 32.9 27.7 119 Kelley R.S. 8180 .0 .0 * 35.8 23.7 151 Lily Lake 9133 .0 .0 * 24.2 23.2 104 Monte Cristo 8932 .4 .0 * 46.5 33.9 137 Salt River Summit 7760 .0 .0 * 32.6 21.7 150 ----- ----- Basin Index (%) * 135 ----------------------------------------------------------------------------- -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.