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 TUESDAY: JUNE 13 , 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 * 44.1 27.0 163 Black Bear 8170 20.8 14.0 149 63.5 48.4 131 Blind Bull Sum 8650 -M 2.2 * 40.9 25.5 160 Cottonwood Creek 7670 .1 .0 * 47.1 33.0 143 East Rim Divide 7930 .0 .0 * 24.6 15.9 155 Grand Targhee 9260 30.0 35.2 85 54.8 42.1 130 Granite Creek 6770 .0 .0 * 40.8 25.2 162 Grassy Lake 7265 -M .0 * 64.3 45.8 140 Gros Ventre Summit 8750 -M .0 * 28.2 18.2 155 Gunsight Pass 9820 4.0 .0 * 30.9 20.0 154 Lewis Lake Divide 7850 5.2 .0 * 60.9 44.5 137 Phillips Bench 8200 6.1 .0 * 52.5 35.8 147 Salt River Summit 7760 .0 .0 * 32.8 21.9 150 Snake River Station 6920 .0 .0 * 40.6 29.2 139 Spring Creek Divide 9000 12.9 .7 1843* 46.7 30.4 154 Thumb Divide 7980 .2 .0 * 32.1 25.2 127 Togwotee Pass 9580 17.8 15.6 114 46.0 32.5 142 Two Ocean Plateau 9240 -M 18.1 * -M 36.1 * Willow Creek 8380 -M .0 * 61.1 44.5 137 Younts Peak 8350 .0 .0 * 36.3 22.1 164 ----- ----- Basin Index (%) 148* 144 MADISON-GALLATIN Black Bear 8170 20.8 14.0 149 63.5 48.4 131 Canyon 7870 .0 .0 * 30.4 22.2 137 Madison Plateau 7750 .0 .0 * 42.7 34.8 123 West Yellowstone 6700 .1 .0 * 27.7 20.1 138 Whiskey Creek 6800 .0 .0 * 32.4 27.4 118 ----- ----- Basin Index (%) 149* 129 YELLOWSTONE Beartooth Lake 9360 22.1 10.3 215 33.7 26.6 127 Burnt Mtn 5880 .0 .0 * 24.7 23.0 107 Canyon 7870 .0 .0 * 30.4 22.2 137 Cole Creek 7850 .0 .7 0* 20.5 23.1 89 Evening Star 9200 17.3 11.0 157 51.7 37.1 139 Fisher Creek 9100 24.6 20.5 120 54.5 42.3 129 Northeast Entrance 7350 .0 .0 * 24.6 18.1 136 Parker Peak 9400 11.7 7.7 152 42.2 25.6 165 Sylvan Lake 8420 .3 .0 * 44.7 31.3 143 Thumb Divide 7980 .2 .0 * 32.1 25.2 127 Two Ocean Plateau 9240 -M 18.1 * -M 36.1 * White Mill 8700 10.6 9.7 109 40.8 32.3 126 Wolverine 7650 -M .0 * 25.3 17.6 144 ----- ----- Basin Index (%) 145* 131 WIND RIVER Burroughs Creek 8750 .0 -M * 32.4 -M * Castle Creek 8400 .0 -M * 20.0 -M * Cold Springs 9630 .0 .0 * 25.7 16.5 156 Deer Park 9700 14.9 .0 * 47.9 28.8 166 Hobbs Park 10100 13.9 .0 * 38.6 21.8 177 Kirwin 9550 .0 .0 * 31.7 18.4 172 Little Warm 9370 .0 .0 * 28.9 19.6 147 Owl Creek 8975 .0 .0 * 18.4 11.8 156 South Pass 9040 3.3 .0 * 38.7 24.8 156 St. Lawrence Alt 8620 .0 .0 * 23.6 15.7 150 Togwotee Pass 9580 17.8 15.6 114 46.0 32.5 142 Townsend Creek 8700 -M .0 * 32.6 19.3 169 ----- ----- Basin Index (%) 320* 159 BIGHORN BASIN Bald Mtn. 9380 2.5 5.4 46 24.4 25.2 97 Bear Trap Meadow 8200 .0 .0 * 18.8 15.1 125 Bone Springs Div 9350 .0 .0 * 24.8 24.1 103 Grave Springs 8550 .0 .0 * 16.0 17.3 92 Kirwin 9550 .0 .0 * 31.7 18.4 172 Marquette 8760 .0 -M * 28.1 -M * Middle Powder 7760 .0 .0 * 17.3 18.6 93 Owl Creek 8975 .0 .0 * 18.4 11.8 156 Powder River Pass 9480 .0 .0 * 21.9 20.5 107 Shell Creek 9580 .0 .5 0* 21.4 21.7 99 Timber Creek 7950 .0 .0 * 20.0 15.0 133 ----- ----- Basin Index (%) 42* 114 SHOSHONE RIVER Blackwater 9780 25.6 13.6 188 49.7 29.0 171 Evening Star 9200 17.3 11.0 157 51.7 37.1 139 Marquette 8760 .0 -M * 28.1 -M * Sylvan Road 7120 .0 .0 * 33.8 22.8 148 Younts Peak 8350 .0 .0 * 36.3 22.1 164 ----- ----- Basin Index (%) 174* 155 POWDER RIVER Bear Trap Meadow 8200 .0 .0 * 18.8 15.1 125 Cloud Peak Reservoir 9860 .0 .0 * 30.1 22.9 131 Grave Springs 8550 .0 .0 * 16.0 17.3 92 Hansen Sawmill 8360 .0 .0 * 22.2 15.6 142 Middle Powder 7760 .0 .0 * 17.3 18.6 93 Powder River Pass 9480 .0 .0 * 21.9 20.5 107 Soldier Park 8720 .0 -M * 24.8 -M * ----- ----- Basin Index (%) * 115 TONGUE RIVER Big Goose 7990 .0 .0 * 22.7 19.4 117 Bone Springs Div 9350 .0 .0 * 24.8 24.1 103 Burgess Junction 7880 .0 .0 * 21.8 19.4 112 Dome Lake 8880 .0 .0 * 26.1 21.8 120 Little Goose 8870 .0 -M * 27.0 -M * Sucker Creek 8880 .0 .0 * 23.5 23.1 102 Tie Creek 6870 .0 .0 * 25.8 20.3 127 ----- ----- Basin Index (%) * 113 BELLE FOURCHE Cole Canyon 5910 .0 .0 * 15.6 18.7 83 ----- ----- Basin Index (%) * 83 CHEYENNE RIVER BASIN Blind Park 6890 .0 .0 * 16.8 20.1 84 North Rapid Creek 6130 .0 .0 * 17.2 17.8 97 ----- ----- Basin Index (%) * 90 UPPER N. PLATTE Arapaho Ridge 10960 5.9 .7 843* 33.6 30.9 109 Blackhall Mtn 9820 7.9 -M * 45.8 -M * Columbine 9160 .0 .0 * 35.2 32.4 109 Divide Peak 8880 .0 .0 * 28.5 28.4 100 Joe Wright 10120 1.8 5.5 33 38.2 35.6 107 Laprele Creek 8375 .0 .0 * 18.7 19.2 97 Med Bow 10500 20.0 -M * 45.0 -M * North French Creek 10130 4.8 11.4 42 37.1 36.5 102 Never Summer 10280 6.2 7.2 86 26.7 -M * Old Battle 10000 21.4 7.0 306 46.9 44.9 104 Rawah 9020 .1 .0 * 23.4 21.1 111 Sage Creek Basin 7850 -M .0 * 19.6 18.8 104 Sand Lake 10050 20.6 11.1 186 35.9 34.8 103 South Brush Creek 8440 .0 .0 * 17.9 22.1 81 Tower 10500 21.1 24.0 88 56.3 50.8 111 Webber Springs 9250 .0 .0 * 40.6 34.1 119 Willow Creek Pass 9540 .1 .0 * 23.9 19.5 123 Zirkel 9340 .0 .0 * 50.9 35.9 142 ----- ----- Basin Index (%) 123* 109 SWEETWATER Deer Park 9700 14.9 .0 * 47.9 28.8 166 Larsen Creek 9000 .0 .0 * 28.5 -M * South Pass 9040 3.3 .0 * 38.7 24.8 156 ----- ----- Basin Index (%) * 162 LOWER N. PLATTE Casper Mtn. 7900 .0 .0 * 23.2 23.1 100 Laprele Creek 8375 .0 .0 * 18.7 19.2 97 Reno Hill 8400 .0 .0 * 23.0 23.9 96 Windy Peak 7900 .0 .0 * 19.2 17.4 110 ----- ----- Basin Index (%) * 101 LARAMIE RIVER Brooklyn Lake 10240 .1 .0 * 30.9 29.5 105 Cinnabar Park 9574 .0 .0 * 30.3 32.1 94 Crow Creek 8330 .0 .0 * 16.4 18.3 90 Deadman Hill 10220 .5 .0 * 30.3 25.0 121 Rawah 9020 .1 .0 * 23.4 21.1 111 Roach 9700 .0 .0 * 29.1 27.0 108 ----- ----- Basin Index (%) * 105 S. PLATTE Black Mountain 8920 -M -M * 21.3 -M * Crow Creek 8330 .0 .0 * 16.4 18.3 90 Deadman Hill 10220 .5 .0 * 30.3 25.0 121 ----- ----- Basin Index (%) * 108 LITTLE SNAKE RIVER Battle Mountain 7440 .0 .0 * 21.0 20.0 105 Divide Peak 8880 .0 .0 * 28.5 28.4 100 Elk River 8700 .0 .0 * 25.1 26.5 95 Little Snake River 8915 .0 .0 * 45.9 38.0 121 Old Battle 10000 21.4 7.0 306 46.9 44.9 104 Sage Creek Basin 7850 -M .0 * 19.6 18.8 104 Sandstone RS 8150 .0 .0 * 20.2 24.2 83 Whiskey Park 8950 .0 .0 * 37.7 36.1 104 ----- ----- Basin Index (%) 306* 103 UPPER GREEN RIVER Big Sandy Opening 9080 .0 .0 * 27.9 19.1 146 Blind Bull Sum 8650 -M 2.2 * 40.9 25.5 160 East Rim Divide 7930 .0 .0 * 24.6 15.9 155 Elkhart Park G.S. 9400 -M .0 * 28.2 19.0 148 Gros Ventre Summit 8750 -M .0 * 28.2 18.2 155 Gunsight Pass 9820 4.0 .0 * 30.9 20.0 154 Kendall R.S. 7740 .0 .0 * 32.6 18.5 176 Loomis Park 8240 .1 .0 * 36.2 22.5 161 New Fork Lake 8340 .0 .0 * 23.2 15.7 148 Pocket Creek 9360 -M -M * -M -M * Snider Basin 8060 .0 .0 * 30.2 18.3 165 Spring Creek Divide 9000 12.9 .7 1843* 46.7 30.4 154 Triple Peak 8500 .0 .0 * 47.2 32.8 144 ----- ----- Basin Index (%) 2429* 155 LOWER GREEN RIVER Blacks Fork Jct 8869 .0 -M * 20.1 -M * Buck Pasture 9632 .0 -M * 29.1 -M * EF Blacks Fork GS 9360 -M -M * 24.3 -M * Hams Fork 7840 .0 .0 * 25.3 16.2 156 Hewinta 9500 .0 .0 * 22.6 19.6 115 Hickerson Park 9122 .0 .0 * 16.6 15.1 110 Hole-in-Rock 9168 .0 .0 * 17.5 14.7 119 Indian Creek 9425 11.0 .3 3667* 47.5 29.2 163 Kelley R.S. 8180 .0 .0 * 36.1 23.9 151 Spirit Lk 10235 .0 -M * 22.6 -M * Steel Creek Park 10158 .0 .0 * 27.1 23.0 118 ----- ----- Basin Index (%) 3667* 136 UPPER BEAR RIVER Bear River RS 8777 .0 -M * 22.7 -M * Bug Lake 7987 .9 .0 * 39.6 25.5 155 Burts Miller Ranch 8000 .0 -M * 12.6 -M * Chalk Creek #1 9171 .1 .0 * 43.2 33.3 130 Hayden Fork 9130 .2 .0 * 33.2 27.9 119 Kelley R.S. 8180 .0 .0 * 36.1 23.9 151 Lily Lake 9133 .0 .0 * 24.6 23.4 105 Monte Cristo 8932 .9 .0 * 47.4 34.1 139 Salt River Summit 7760 .0 .0 * 32.8 21.9 150 ----- ----- 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.