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 SATURDAY: JUNE 3 , 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 25.9 168 Black Bear 8170 33.7 22.3 151 61.9 46.6 133 Blind Bull Sum 8650 -M 9.9 * 40.4 24.5 165 Cottonwood Creek 7670 3.3 .0 * 46.3 31.7 146 East Rim Divide 7930 .1 .0 * 24.0 15.2 158 Grand Targhee 9260 46.2 39.1 118 53.5 38.8 138 Granite Creek 6770 .0 .0 * 40.7 24.3 167 Grassy Lake 7265 10.2 2.2 464* 63.0 44.0 143 Gros Ventre Summit 8750 -M .0 * -M 17.2 * Gunsight Pass 9820 13.8 1.7 812 30.2 18.8 161 Lewis Lake Divide 7850 20.0 9.5 211 60.5 43.0 141 Phillips Bench 8200 18.8 7.9 238 51.7 34.4 150 Salt River Summit 7760 .0 .0 * 32.9 21.0 157 Snake River Station 6920 .0 .0 * 39.9 28.0 142 Spring Creek Divide 9000 25.8 10.1 255 46.7 29.3 159 Thumb Divide 7980 .3 .0 * 31.5 24.0 131 Togwotee Pass 9580 26.3 18.3 144 45.0 31.2 144 Two Ocean Plateau 9240 -M 23.6 * -M 34.6 * Willow Creek 8380 -M 2.3 * 60.4 42.8 141 Younts Peak 8350 .0 1.8 0 35.7 20.9 171 ----- ----- Basin Index (%) 176* 148 MADISON-GALLATIN Black Bear 8170 33.7 22.3 151 61.9 46.6 133 Canyon 7870 .0 .0 * 30.4 21.1 144 Madison Plateau 7750 6.8 4.3 158 41.6 33.5 124 West Yellowstone 6700 .0 .0 * 26.8 18.8 143 Whiskey Creek 6800 .1 .0 * 32.0 26.0 123 ----- ----- Basin Index (%) 153* 132 YELLOWSTONE Beartooth Lake 9360 29.2 15.9 184 33.4 25.4 131 Burnt Mtn 5880 .0 .0 * 24.1 21.0 115 Canyon 7870 .0 .0 * 30.4 21.1 144 Cole Creek 7850 7.7 7.2 107 19.9 21.6 92 Evening Star 9200 27.7 16.4 169 51.3 35.2 146 Fisher Creek 9100 35.7 27.2 131 53.7 40.4 133 Northeast Entrance 7350 .0 .0 * 23.9 16.9 141 Parker Peak 9400 24.0 12.3 195 41.7 24.0 174 Sylvan Lake 8420 5.3 4.3 123 43.7 29.5 148 Thumb Divide 7980 .3 .0 * 31.5 24.0 131 Two Ocean Plateau 9240 -M 23.6 * -M 34.6 * White Mill 8700 21.7 15.5 140 40.7 30.7 133 Wolverine 7650 -M .0 * 24.9 16.6 150 ----- ----- Basin Index (%) 153 137 WIND RIVER Burroughs Creek 8750 .0 -M * 31.6 -M * Castle Creek 8400 .0 -M * 19.1 -M * Cold Springs 9630 .0 .0 * 25.1 15.5 162 Deer Park 9700 27.2 1.5 1813* 47.6 27.2 175 Hobbs Park 10100 26.4 4.8 550 38.9 20.8 187 Kirwin 9550 10.8 .9 1200* 31.3 17.1 183 Little Warm 9370 3.0 .0 * 28.3 18.6 152 Owl Creek 8975 .0 .0 * 17.7 10.9 162 South Pass 9040 -M .2 * 38.2 23.8 161 St. Lawrence Alt 8620 .0 .0 * 23.5 14.7 160 Togwotee Pass 9580 26.3 18.3 144 45.0 31.2 144 Townsend Creek 8700 4.0 .0 * 32.6 18.4 177 ----- ----- Basin Index (%) 383* 166 BIGHORN BASIN Bald Mtn. 9380 16.3 12.6 129 23.8 23.7 100 Bear Trap Meadow 8200 .0 .0 * 17.5 14.1 124 Bone Springs Div 9350 11.4 6.6 173 24.1 22.4 108 Grave Springs 8550 .0 .0 * 16.0 16.3 98 Kirwin 9550 10.8 .9 1200* 31.3 17.1 183 Marquette 8760 7.5 -M * 27.4 -M * Middle Powder 7760 .0 .0 * 16.6 17.5 95 Owl Creek 8975 .0 .0 * 17.7 10.9 162 Powder River Pass 9480 .0 .0 * 19.6 19.0 103 Shell Creek 9580 9.1 7.5 121 20.0 20.1 100 Timber Creek 7950 .0 .0 * 19.1 13.8 138 ----- ----- Basin Index (%) 172* 118 SHOSHONE RIVER Blackwater 9780 32.4 18.0 180 48.5 27.6 176 Evening Star 9200 27.7 16.4 169 51.3 35.2 146 Marquette 8760 7.5 -M * 27.4 -M * Sylvan Road 7120 .0 .0 * 33.2 21.5 154 Younts Peak 8350 .0 1.8 0 35.7 20.9 171 ----- ----- Basin Index (%) 166 160 POWDER RIVER Bear Trap Meadow 8200 .0 .0 * 17.5 14.1 124 Cloud Peak Reservoir 9860 13.6 3.1 439 29.2 21.4 136 Grave Springs 8550 .0 .0 * 16.0 16.3 98 Hansen Sawmill 8360 .0 .0 * -M 14.3 * Middle Powder 7760 .0 .0 * 16.6 17.5 95 Powder River Pass 9480 .0 .0 * 19.6 19.0 103 Soldier Park 8720 .1 -M * 23.0 -M * ----- ----- Basin Index (%) 439* 112 TONGUE RIVER Big Goose 7990 .6 .0 * 21.9 18.3 120 Bone Springs Div 9350 11.4 6.6 173 24.1 22.4 108 Burgess Junction 7880 .0 .0 * 19.6 18.2 108 Dome Lake 8880 6.6 .0 * 25.4 20.4 125 Little Goose 8870 5.2 -M * 26.4 -M * Sucker Creek 8880 2.9 .0 * 21.9 21.7 101 Tie Creek 6870 .1 .0 * 24.7 18.9 131 ----- ----- Basin Index (%) 327* 115 BELLE FOURCHE Cole Canyon 5910 .0 .0 * 14.2 17.1 83 ----- ----- Basin Index (%) * 83 CHEYENNE RIVER BASIN Blind Park 6890 .0 .0 * 15.1 18.8 80 North Rapid Creek 6130 .0 .0 * 13.6 16.4 83 ----- ----- Basin Index (%) * 82 UPPER N. PLATTE Arapaho Ridge 10960 16.9 6.2 273 33.6 29.5 114 Blackhall Mtn 9820 23.1 -M * 45.4 -M * Columbine 9160 -M .0 * 35.4 31.6 112 Divide Peak 8880 .0 .0 * 28.6 27.6 104 Joe Wright 10120 13.0 13.0 100 38.2 34.6 110 Laprele Creek 8375 .3 .0 * 18.5 18.2 102 Med Bow 10500 32.5 -M * 44.4 -M * North French Creek 10130 17.4 18.8 93 37.0 35.2 105 Never Summer 10280 22.7 14.7 154 26.4 -M * Old Battle 10000 33.2 22.0 151 47.0 43.7 108 Rawah 9020 .1 .0 * 23.2 19.9 117 Sage Creek Basin 7850 -M .0 * 19.6 18.0 109 Sand Lake 10050 28.4 19.6 145 35.8 33.4 107 South Brush Creek 8440 .0 .0 * 17.9 21.2 84 Tower 10500 36.3 35.0 104 56.4 49.5 114 Webber Springs 9250 3.7 .0 * 40.5 33.2 122 Willow Creek Pass 9540 5.6 .0 * 23.8 18.7 127 Zirkel 9340 .0 .0 * 50.7 34.4 147 ----- ----- Basin Index (%) 137* 113 SWEETWATER Deer Park 9700 27.2 1.5 1813* 47.6 27.2 175 Larsen Creek 9000 .1 .0 * 28.4 -M * South Pass 9040 -M .2 * 38.2 23.8 161 ----- ----- Basin Index (%) 1820* 168 LOWER N. PLATTE Casper Mtn. 7900 .4 .0 * 22.8 21.9 104 Laprele Creek 8375 .3 .0 * 18.5 18.2 102 Reno Hill 8400 .0 .0 * 23.0 22.9 100 Windy Peak 7900 .1 .0 * 19.0 16.3 117 ----- ----- Basin Index (%) * 105 LARAMIE RIVER Brooklyn Lake 10240 4.7 3.2 147 30.1 28.5 106 Cinnabar Park 9574 .0 .0 * 29.4 30.6 96 Crow Creek 8330 .0 .0 * 16.2 16.4 99 Deadman Hill 10220 14.9 5.7 261 30.2 24.2 125 Rawah 9020 .1 .0 * 23.2 19.9 117 Roach 9700 2.2 1.0 220* 29.1 25.9 112 ----- ----- Basin Index (%) 221* 109 S. PLATTE Black Mountain 8920 -M -M * 21.2 -M * Crow Creek 8330 .0 .0 * 16.2 16.4 99 Deadman Hill 10220 14.9 5.7 261 30.2 24.2 125 ----- ----- Basin Index (%) 261* 114 LITTLE SNAKE RIVER Battle Mountain 7440 .0 .0 * 21.1 19.3 109 Divide Peak 8880 .0 .0 * 28.6 27.6 104 Elk River 8700 .0 .0 * 25.1 25.6 98 Little Snake River 8915 1.1 1.0 110* 45.9 36.3 126 Old Battle 10000 33.2 22.0 151 47.0 43.7 108 Sage Creek Basin 7850 -M .0 * 19.6 18.0 109 Sandstone RS 8150 .0 .0 * 20.3 23.4 87 Whiskey Park 8950 4.7 4.1 115 37.8 35.1 108 ----- ----- Basin Index (%) 144* 107 UPPER GREEN RIVER Big Sandy Opening 9080 .9 .0 * 27.6 18.0 153 Blind Bull Sum 8650 -M 9.9 * 40.4 24.5 165 East Rim Divide 7930 .1 .0 * 24.0 15.2 158 Elkhart Park G.S. 9400 .6 .0 * 27.7 18.1 153 Gros Ventre Summit 8750 -M .0 * -M 17.2 * Gunsight Pass 9820 13.8 1.7 812 30.2 18.8 161 Kendall R.S. 7740 .0 .0 * 32.0 17.8 180 Loomis Park 8240 2.3 .0 * 35.8 21.6 166 New Fork Lake 8340 .0 .0 * 23.0 14.7 156 Pocket Creek 9360 -M -M * -M -M * Snider Basin 8060 .0 .0 * 30.2 17.6 172 Spring Creek Divide 9000 25.8 10.1 255 46.7 29.3 159 Triple Peak 8500 9.9 .0 * 46.3 31.7 146 ----- ----- Basin Index (%) 453* 160 LOWER GREEN RIVER Blacks Fork Jct 8869 .0 -M * 20.0 -M * Buck Pasture 9632 .1 -M * 28.9 -M * EF Blacks Fork GS 9360 -M -M * 24.1 -M * Hams Fork 7840 .0 .0 * 25.2 15.4 164 Hewinta 9500 .0 .0 * 22.4 18.8 119 Hickerson Park 9122 .0 .0 * 16.3 14.5 112 Hole-in-Rock 9168 .0 .0 * 17.2 14.1 122 Indian Creek 9425 23.6 9.1 259 47.4 28.2 168 Kelley R.S. 8180 .0 .0 * 35.8 23.0 156 Spirit Lk 10235 .0 -M * 22.5 -M * Steel Creek Park 10158 8.4 8.7 97 26.9 22.3 121 ----- ----- Basin Index (%) 180* 140 UPPER BEAR RIVER Bear River RS 8777 .0 -M * 22.5 -M * Bug Lake 7987 .8 .0 * 39.3 24.6 160 Burts Miller Ranch 8000 .0 -M * 12.6 -M * Chalk Creek #1 9171 7.6 4.3 177 43.0 32.2 134 Hayden Fork 9130 .1 .0 * 33.2 26.9 123 Kelley R.S. 8180 .0 .0 * 35.8 23.0 156 Lily Lake 9133 .0 .0 * 24.2 22.5 108 Monte Cristo 8932 13.0 2.6 500* 46.5 33.0 141 Salt River Summit 7760 .0 .0 * 32.9 21.0 157 ----- ----- Basin Index (%) 312* 139 ----------------------------------------------------------------------------- -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.