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: JUNE 5 , 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 * 42.9 26.1 164 Black Bear 8170 30.4 20.2 150 62.0 47.0 132 Blind Bull Sum 8650 -M 8.2 * 40.5 24.7 164 Cottonwood Creek 7670 .4 .0 * 46.5 31.9 146 East Rim Divide 7930 .2 .0 * 24.0 15.4 156 Grand Targhee 9260 -M 38.3 * -M 39.3 * Granite Creek 6770 .0 .0 * 41.0 24.6 167 Grassy Lake 7265 7.2 .3 2400* 63.2 44.3 143 Gros Ventre Summit 8750 -M .0 * -M 17.3 * Gunsight Pass 9820 11.7 .4 2925* 30.1 19.0 158 Lewis Lake Divide 7850 17.1 7.3 234 60.6 43.2 140 Phillips Bench 8200 16.0 6.3 254 51.7 34.8 149 Salt River Summit 7760 .1 .0 * 32.8 21.2 155 Snake River Station 6920 .0 .0 * 39.9 28.2 141 Spring Creek Divide 9000 23.0 8.2 280 46.7 29.5 158 Thumb Divide 7980 .4 .0 * 31.5 24.2 130 Togwotee Pass 9580 24.3 18.0 135 45.0 31.4 143 Two Ocean Plateau 9240 -M 22.5 * -M 34.8 * Willow Creek 8380 -M .4 * -M 43.2 * Younts Peak 8350 .1 1.1 9* 36.1 21.1 171 ----- ----- Basin Index (%) 212* 149 MADISON-GALLATIN Black Bear 8170 30.4 20.2 150 62.0 47.0 132 Canyon 7870 .0 .0 * 30.6 21.3 144 Madison Plateau 7750 3.5 2.9 121 41.6 33.8 123 West Yellowstone 6700 .0 .0 * 26.8 19.2 140 Whiskey Creek 6800 .1 .0 * 32.2 26.3 122 ----- ----- Basin Index (%) 147* 131 YELLOWSTONE Beartooth Lake 9360 28.2 14.7 192 33.5 25.6 131 Burnt Mtn 5880 .0 .0 * 24.1 21.2 114 Canyon 7870 .0 .0 * 30.6 21.3 144 Cole Creek 7850 4.5 5.3 85 20.2 21.8 93 Evening Star 9200 25.2 15.2 166 51.4 35.5 145 Fisher Creek 9100 32.2 25.9 124 53.8 40.7 132 Northeast Entrance 7350 .0 .0 * 23.9 17.1 140 Parker Peak 9400 20.8 11.0 189 41.7 24.2 172 Sylvan Lake 8420 1.9 2.5 76 43.7 29.8 147 Thumb Divide 7980 .4 .0 * 31.5 24.2 130 Two Ocean Plateau 9240 -M 22.5 * -M 34.8 * White Mill 8700 19.1 14.2 135 40.7 31.0 131 Wolverine 7650 -M .0 * 24.9 16.8 148 ----- ----- Basin Index (%) 149 136 WIND RIVER Burroughs Creek 8750 .0 -M * 31.8 -M * Castle Creek 8400 .0 -M * 19.2 -M * Cold Springs 9630 .0 .0 * 25.4 15.8 161 Deer Park 9700 25.8 .1 25800* 47.6 27.5 173 Hobbs Park 10100 24.5 3.6 681 38.9 21.0 185 Kirwin 9550 8.0 .5 1600* 31.4 17.4 180 Little Warm 9370 .0 .0 * 28.4 18.8 151 Owl Creek 8975 .0 .0 * 17.6 11.1 159 South Pass 9040 22.3 .0 * 38.2 24.0 159 St. Lawrence Alt 8620 .0 .0 * 23.5 15.0 157 Togwotee Pass 9580 24.3 18.0 135 45.0 31.4 143 Townsend Creek 8700 1.4 .0 * 33.0 18.6 177 ----- ----- Basin Index (%) 479* 164 BIGHORN BASIN Bald Mtn. 9380 14.2 11.3 126 23.9 23.9 100 Bear Trap Meadow 8200 .0 .0 * 17.8 14.2 125 Bone Springs Div 9350 8.9 4.9 182 24.2 22.7 107 Grave Springs 8550 .0 .0 * 16.4 16.4 100 Kirwin 9550 8.0 .5 1600* 31.4 17.4 180 Marquette 8760 4.4 -M * 27.3 -M * Middle Powder 7760 .0 .0 * 17.0 17.7 96 Owl Creek 8975 .0 .0 * 17.6 11.1 159 Powder River Pass 9480 .0 .0 * 20.1 19.2 105 Shell Creek 9580 6.2 6.3 98 20.2 20.3 100 Timber Creek 7950 .0 .0 * 19.1 14.0 136 ----- ----- Basin Index (%) 162* 117 SHOSHONE RIVER Blackwater 9780 31.3 16.8 186 48.5 27.8 174 Evening Star 9200 25.2 15.2 166 51.4 35.5 145 Marquette 8760 4.4 -M * 27.3 -M * Sylvan Road 7120 .0 .0 * 33.1 21.7 153 Younts Peak 8350 .1 1.1 9* 36.1 21.1 171 ----- ----- Basin Index (%) 171* 159 POWDER RIVER Bear Trap Meadow 8200 .0 .0 * 17.8 14.2 125 Cloud Peak Reservoir 9860 11.6 1.9 611 29.2 21.6 135 Grave Springs 8550 .0 .0 * 16.4 16.4 100 Hansen Sawmill 8360 .0 .0 * 21.4 14.6 147 Middle Powder 7760 .0 .0 * 17.0 17.7 96 Powder River Pass 9480 .0 .0 * 20.1 19.2 105 Soldier Park 8720 .0 -M * 23.1 -M * ----- ----- Basin Index (%) 611* 118 TONGUE RIVER Big Goose 7990 .0 .0 * 22.3 18.5 121 Bone Springs Div 9350 8.9 4.9 182 24.2 22.7 107 Burgess Junction 7880 .0 .0 * 20.4 18.4 111 Dome Lake 8880 3.1 .0 * 25.6 20.6 124 Little Goose 8870 2.7 -M * 26.4 -M * Sucker Creek 8880 .0 .0 * 22.9 21.9 105 Tie Creek 6870 .0 .0 * 24.7 19.0 130 ----- ----- Basin Index (%) 245* 116 BELLE FOURCHE Cole Canyon 5910 .0 .0 * 14.2 17.5 81 ----- ----- Basin Index (%) * 81 CHEYENNE RIVER BASIN Blind Park 6890 .0 .0 * 15.1 19.0 79 North Rapid Creek 6130 .0 .0 * 13.6 16.6 82 ----- ----- Basin Index (%) * 81 UPPER N. PLATTE Arapaho Ridge 10960 15.1 4.8 315 33.6 29.8 113 Blackhall Mtn 9820 20.3 -M * 45.3 -M * Columbine 9160 -M .0 * 35.5 31.8 112 Divide Peak 8880 .0 .0 * 28.8 27.7 104 Joe Wright 10120 11.2 11.8 95 38.2 34.8 110 Laprele Creek 8375 .4 .0 * 19.0 18.4 103 Med Bow 10500 30.8 -M * 44.3 -M * North French Creek 10130 15.1 17.6 86 37.1 35.5 105 Never Summer 10280 20.1 13.6 148 26.5 -M * Old Battle 10000 31.5 19.4 162 47.1 44.0 107 Rawah 9020 .1 .0 * 23.3 20.3 115 Sage Creek Basin 7850 -M .0 * 19.5 18.1 108 Sand Lake 10050 28.2 18.5 152 35.8 33.7 106 South Brush Creek 8440 .0 .0 * 18.4 21.4 86 Tower 10500 34.1 33.6 101 56.5 49.8 113 Webber Springs 9250 1.0 .0 * 40.4 33.4 121 Willow Creek Pass 9540 2.2 .0 * 23.8 18.9 126 Zirkel 9340 .0 .0 * 50.7 34.6 147 ----- ----- Basin Index (%) 133* 112 SWEETWATER Deer Park 9700 25.8 .1 25800* 47.6 27.5 173 Larsen Creek 9000 .0 .0 * 28.4 -M * South Pass 9040 22.3 .0 * 38.2 24.0 159 ----- ----- Basin Index (%) 48100* 167 LOWER N. PLATTE Casper Mtn. 7900 .5 .0 * 23.3 22.2 105 Laprele Creek 8375 .4 .0 * 19.0 18.4 103 Reno Hill 8400 .0 .0 * 23.5 23.1 102 Windy Peak 7900 .1 .0 * 19.1 16.6 115 ----- ----- Basin Index (%) * 106 LARAMIE RIVER Brooklyn Lake 10240 1.0 1.8 56* 30.5 28.6 107 Cinnabar Park 9574 .0 .0 * 29.3 31.0 95 Crow Creek 8330 .0 .0 * 16.2 17.3 94 Deadman Hill 10220 12.3 3.7 332 30.2 24.4 124 Rawah 9020 .1 .0 * 23.3 20.3 115 Roach 9700 .8 .2 400* 29.1 26.1 111 ----- ----- Basin Index (%) 249* 107 S. PLATTE Black Mountain 8920 -M -M * 21.2 -M * Crow Creek 8330 .0 .0 * 16.2 17.3 94 Deadman Hill 10220 12.3 3.7 332 30.2 24.4 124 ----- ----- Basin Index (%) 332* 111 LITTLE SNAKE RIVER Battle Mountain 7440 .0 .0 * 21.0 19.5 108 Divide Peak 8880 .0 .0 * 28.8 27.7 104 Elk River 8700 .0 .0 * 24.9 25.8 97 Little Snake River 8915 .1 .5 20* 46.0 36.7 125 Old Battle 10000 31.5 19.4 162 47.1 44.0 107 Sage Creek Basin 7850 -M .0 * 19.5 18.1 108 Sandstone RS 8150 .0 .0 * 20.4 23.6 86 Whiskey Park 8950 1.8 2.0 90* 37.7 35.3 107 ----- ----- Basin Index (%) 153* 106 UPPER GREEN RIVER Big Sandy Opening 9080 .0 .0 * 27.5 18.3 150 Blind Bull Sum 8650 -M 8.2 * 40.5 24.7 164 East Rim Divide 7930 .2 .0 * 24.0 15.4 156 Elkhart Park G.S. 9400 .0 .0 * 27.8 18.3 152 Gros Ventre Summit 8750 -M .0 * -M 17.3 * Gunsight Pass 9820 11.7 .4 2925* 30.1 19.0 158 Kendall R.S. 7740 .0 .0 * 32.1 18.0 178 Loomis Park 8240 .4 .0 * 36.0 21.8 165 New Fork Lake 8340 .0 .0 * 23.2 15.0 155 Pocket Creek 9360 -M -M * -M -M * Snider Basin 8060 .0 .0 * 30.3 17.8 170 Spring Creek Divide 9000 23.0 8.2 280 46.7 29.5 158 Triple Peak 8500 7.0 .0 * 46.4 31.9 145 ----- ----- Basin Index (%) 492* 159 LOWER GREEN RIVER Blacks Fork Jct 8869 .0 -M * 20.0 -M * Buck Pasture 9632 .0 -M * 28.8 -M * EF Blacks Fork GS 9360 .0 -M * 24.1 -M * Hams Fork 7840 .2 .0 * 25.2 15.6 162 Hewinta 9500 .0 .0 * 22.4 18.9 119 Hickerson Park 9122 .0 .0 * 16.3 14.6 112 Hole-in-Rock 9168 .0 .0 * 17.3 14.2 122 Indian Creek 9425 21.2 7.3 290 47.5 28.4 167 Kelley R.S. 8180 .0 .0 * 35.8 23.2 154 Spirit Lk 10235 .0 -M * 22.6 -M * Steel Creek Park 10158 5.9 7.6 78 26.9 22.4 120 ----- ----- Basin Index (%) 183* 139 UPPER BEAR RIVER Bear River RS 8777 .0 -M * 22.5 -M * Bug Lake 7987 .0 .0 * 39.2 24.8 158 Burts Miller Ranch 8000 .0 -M * 12.6 -M * Chalk Creek #1 9171 3.9 2.8 139 42.9 32.4 132 Hayden Fork 9130 .0 .0 * 33.3 27.1 123 Kelley R.S. 8180 .0 .0 * 35.8 23.2 154 Lily Lake 9133 .0 .0 * 24.2 22.7 107 Monte Cristo 8932 9.5 .0 * 46.5 33.2 140 Salt River Summit 7760 .1 .0 * 32.8 21.2 155 ----- ----- Basin Index (%) 482* 138 ----------------------------------------------------------------------------- -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.