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: JUNE 2 , 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 * 43.4 25.7 169 Black Bear 8170 35.1 23.4 150 62.0 46.5 133 Blind Bull Sum 8650 -M 10.7 * 40.2 24.4 165 Cottonwood Creek 7670 5.2 .0 * 46.3 31.5 147 East Rim Divide 7930 .2 .0 * 23.8 15.1 158 Grand Targhee 9260 48.1 39.6 121 53.4 38.8 138 Granite Creek 6770 .0 .0 * 40.5 24.2 167 Grassy Lake 7265 11.7 3.6 325 63.0 43.9 144 Gros Ventre Summit 8750 -M .0 * -M 17.1 * Gunsight Pass 9820 14.8 2.3 643 30.2 18.8 161 Lewis Lake Divide 7850 21.8 10.6 206 60.5 42.8 141 Phillips Bench 8200 20.3 8.8 231 51.7 34.3 151 Salt River Summit 7760 .1 .0 * 32.9 20.9 157 Snake River Station 6920 .0 .0 * 40.0 27.9 143 Spring Creek Divide 9000 27.2 10.7 254 46.6 29.2 160 Thumb Divide 7980 .4 .0 * 31.5 23.9 132 Togwotee Pass 9580 27.0 18.6 145 45.0 31.1 145 Two Ocean Plateau 9240 -M 24.2 * -M 34.5 * Willow Creek 8380 -M 3.0 * 60.2 42.7 141 Younts Peak 8350 .1 2.4 4 35.6 20.8 171 ----- ----- Basin Index (%) 177* 149 MADISON-GALLATIN Black Bear 8170 35.1 23.4 150 62.0 46.5 133 Canyon 7870 .0 .0 * 30.3 21.1 144 Madison Plateau 7750 8.3 5.2 160 41.6 33.4 125 West Yellowstone 6700 .0 .0 * 26.8 18.7 143 Whiskey Creek 6800 -M .0 * 32.0 25.8 124 ----- ----- Basin Index (%) 152* 132 YELLOWSTONE Beartooth Lake 9360 29.5 16.5 179 33.5 25.3 132 Burnt Mtn 5880 .0 .0 * 24.1 20.9 115 Canyon 7870 .0 .0 * 30.3 21.1 144 Cole Creek 7850 9.2 8.2 112 19.8 21.4 93 Evening Star 9200 29.2 17.1 171 51.3 35.0 147 Fisher Creek 9100 37.1 27.7 134 53.7 40.2 134 Northeast Entrance 7350 .0 .0 * 23.9 16.8 142 Parker Peak 9400 25.5 13.1 195 41.7 23.9 174 Sylvan Lake 8420 6.7 5.4 124 43.7 29.4 149 Thumb Divide 7980 .4 .0 * 31.5 23.9 132 Two Ocean Plateau 9240 -M 24.2 * -M 34.5 * White Mill 8700 23.2 16.2 143 40.7 30.6 133 Wolverine 7650 -M .0 * 25.0 16.6 151 ----- ----- Basin Index (%) 154 137 WIND RIVER Burroughs Creek 8750 .0 -M * 31.2 -M * Castle Creek 8400 .0 -M * 19.2 -M * Cold Springs 9630 .0 .0 * 25.1 15.4 163 Deer Park 9700 28.3 2.3 1230 47.6 27.1 176 Hobbs Park 10100 27.5 5.5 500 38.9 20.6 189 Kirwin 9550 12.3 1.3 946 31.4 17.0 185 Little Warm 9370 4.4 .0 * 28.4 18.5 154 Owl Creek 8975 .0 .0 * 17.7 10.8 164 South Pass 9040 -M .2 * 38.1 23.7 161 St. Lawrence Alt 8620 .1 .0 * 23.6 14.6 162 Togwotee Pass 9580 27.0 18.6 145 45.0 31.1 145 Townsend Creek 8700 5.3 .0 * 32.4 18.3 177 ----- ----- Basin Index (%) 379* 167 BIGHORN BASIN Bald Mtn. 9380 16.6 13.2 126 23.8 23.6 101 Bear Trap Meadow 8200 .0 .0 * 17.7 14.0 126 Bone Springs Div 9350 12.4 7.6 163 24.1 22.3 108 Grave Springs 8550 .0 .0 * 16.4 16.2 101 Kirwin 9550 12.3 1.3 946 31.4 17.0 185 Marquette 8760 9.3 -M * 27.5 -M * Middle Powder 7760 .0 .0 * 16.8 17.4 97 Owl Creek 8975 .0 .0 * 17.7 10.8 164 Powder River Pass 9480 .0 .0 * 19.7 18.8 105 Shell Creek 9580 9.9 8.2 121 20.0 20.0 100 Timber Creek 7950 .1 .0 * 19.1 13.6 140 ----- ----- Basin Index (%) 169* 119 SHOSHONE RIVER Blackwater 9780 33.3 18.8 177 48.5 27.5 176 Evening Star 9200 29.2 17.1 171 51.3 35.0 147 Marquette 8760 9.3 -M * 27.5 -M * Sylvan Road 7120 .0 .0 * 33.1 21.4 155 Younts Peak 8350 .1 2.4 4 35.6 20.8 171 ----- ----- Basin Index (%) 163 161 POWDER RIVER Bear Trap Meadow 8200 .0 .0 * 17.7 14.0 126 Cloud Peak Reservoir 9860 14.4 4.0 360 29.2 21.3 137 Grave Springs 8550 .0 .0 * 16.4 16.2 101 Hansen Sawmill 8360 .0 .0 * -M 14.2 * Middle Powder 7760 .0 .0 * 16.8 17.4 97 Powder River Pass 9480 .0 .0 * 19.7 18.8 105 Soldier Park 8720 .2 -M * 23.1 -M * ----- ----- Basin Index (%) 360* 114 TONGUE RIVER Big Goose 7990 1.4 .0 * 22.0 18.2 121 Bone Springs Div 9350 12.4 7.6 163 24.1 22.3 108 Burgess Junction 7880 .0 .0 * 19.2 18.1 106 Dome Lake 8880 7.9 .0 * 25.5 20.4 125 Little Goose 8870 6.1 -M * 26.4 -M * Sucker Creek 8880 4.1 .0 * 22.0 21.6 102 Tie Creek 6870 .2 .0 * 24.7 18.8 131 ----- ----- Basin Index (%) 342* 115 BELLE FOURCHE Cole Canyon 5910 .0 .0 * 14.2 17.0 84 ----- ----- Basin Index (%) * 84 CHEYENNE RIVER BASIN Blind Park 6890 .0 .0 * 15.1 18.6 81 North Rapid Creek 6130 .0 .0 * 13.4 16.2 83 ----- ----- Basin Index (%) * 82 UPPER N. PLATTE Arapaho Ridge 10960 17.5 7.0 250 33.5 29.3 114 Blackhall Mtn 9820 24.1 -M * 45.3 -M * Columbine 9160 .0 .0 * 35.6 31.6 113 Divide Peak 8880 .0 .0 * 28.7 27.5 104 Joe Wright 10120 13.4 13.4 100 38.2 34.4 111 Laprele Creek 8375 .4 .0 * 18.7 18.1 103 Med Bow 10500 33.4 -M * 44.2 -M * North French Creek 10130 18.1 19.6 92 37.0 35.1 105 Never Summer 10280 22.4 15.2 147 26.2 -M * Old Battle 10000 34.3 23.0 149 47.1 43.6 108 Rawah 9020 .2 .0 * 23.2 19.7 118 Sage Creek Basin 7850 -M .0 * 19.5 18.0 108 Sand Lake 10050 28.8 20.0 144 35.8 33.3 108 South Brush Creek 8440 .0 .0 * 18.0 21.1 85 Tower 10500 37.0 35.6 104 56.4 49.4 114 Webber Springs 9250 5.1 .0 * 40.5 33.2 122 Willow Creek Pass 9540 6.3 .0 * 23.7 18.6 127 Zirkel 9340 .2 .0 * 50.8 34.2 149 ----- ----- Basin Index (%) 137* 113 SWEETWATER Deer Park 9700 28.3 2.3 1230 47.6 27.1 176 Larsen Creek 9000 .2 .0 * 28.5 -M * South Pass 9040 -M .2 * 38.1 23.7 161 ----- ----- Basin Index (%) 1239* 169 LOWER N. PLATTE Casper Mtn. 7900 .6 .0 * 23.1 21.8 106 Laprele Creek 8375 .4 .0 * 18.7 18.1 103 Reno Hill 8400 .0 .0 * 23.3 22.8 102 Windy Peak 7900 .1 .0 * 19.0 16.2 117 ----- ----- Basin Index (%) * 107 LARAMIE RIVER Brooklyn Lake 10240 5.5 4.0 138 30.1 28.4 106 Cinnabar Park 9574 .4 .0 * 29.4 30.5 96 Crow Creek 8330 .0 .0 * 16.2 16.3 99 Deadman Hill 10220 15.2 6.8 224 30.1 24.1 125 Rawah 9020 .2 .0 * 23.2 19.7 118 Roach 9700 3.1 1.4 221* 29.0 25.8 112 ----- ----- Basin Index (%) 200* 109 S. PLATTE Black Mountain 8920 -M -M * 21.2 -M * Crow Creek 8330 .0 .0 * 16.2 16.3 99 Deadman Hill 10220 15.2 6.8 224 30.1 24.1 125 ----- ----- Basin Index (%) 224* 115 LITTLE SNAKE RIVER Battle Mountain 7440 .0 .0 * 21.1 19.3 109 Divide Peak 8880 .0 .0 * 28.7 27.5 104 Elk River 8700 .0 .0 * 25.0 25.5 98 Little Snake River 8915 2.8 1.4 200* 45.9 36.3 126 Old Battle 10000 34.3 23.0 149 47.1 43.6 108 Sage Creek Basin 7850 -M .0 * 19.5 18.0 108 Sandstone RS 8150 .0 .0 * 20.4 23.3 88 Whiskey Park 8950 5.6 5.2 108 37.8 35.0 108 ----- ----- Basin Index (%) 144* 107 UPPER GREEN RIVER Big Sandy Opening 9080 2.5 .0 * 27.6 17.9 154 Blind Bull Sum 8650 -M 10.7 * 40.2 24.4 165 East Rim Divide 7930 .2 .0 * 23.8 15.1 158 Elkhart Park G.S. 9400 2.7 .0 * 27.7 17.9 155 Gros Ventre Summit 8750 -M .0 * -M 17.1 * Gunsight Pass 9820 14.8 2.3 643 30.2 18.8 161 Kendall R.S. 7740 .0 .0 * 32.0 17.7 181 Loomis Park 8240 3.8 .0 * 35.7 21.6 165 New Fork Lake 8340 .0 .0 * 22.9 14.6 157 Pocket Creek 9360 -M -M * -M -M * Snider Basin 8060 .0 .0 * 30.3 17.6 172 Spring Creek Divide 9000 27.2 10.7 254 46.6 29.2 160 Triple Peak 8500 11.3 .0 * 46.3 31.6 147 ----- ----- Basin Index (%) 481* 160 LOWER GREEN RIVER Blacks Fork Jct 8869 .1 -M * 20.0 -M * Buck Pasture 9632 .2 -M * 28.8 -M * EF Blacks Fork GS 9360 -M -M * 24.1 -M * Hams Fork 7840 .1 .0 * 25.2 15.3 165 Hewinta 9500 .0 .0 * 22.5 18.7 120 Hickerson Park 9122 .0 .0 * 16.3 14.5 112 Hole-in-Rock 9168 .0 .0 * 17.3 14.0 124 Indian Creek 9425 24.8 9.8 253 47.3 28.1 168 Kelley R.S. 8180 .0 .0 * 35.7 22.9 156 Spirit Lk 10235 .0 -M * 22.6 -M * Steel Creek Park 10158 9.7 9.1 107 26.9 22.2 121 ----- ----- Basin Index (%) 183* 141 UPPER BEAR RIVER Bear River RS 8777 .0 -M * 22.5 -M * Bug Lake 7987 2.6 .0 * 39.3 24.5 160 Burts Miller Ranch 8000 .0 -M * 12.6 -M * Chalk Creek #1 9171 9.4 5.1 184 43.0 32.1 134 Hayden Fork 9130 .0 .0 * 33.2 26.8 124 Kelley R.S. 8180 .0 .0 * 35.7 22.9 156 Lily Lake 9133 .0 .0 * 24.3 22.4 108 Monte Cristo 8932 14.7 3.4 432 46.5 32.9 141 Salt River Summit 7760 .1 .0 * 32.9 20.9 157 ----- ----- Basin Index (%) 315* 140 ----------------------------------------------------------------------------- -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.