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 21 , 2011 ----------------------------------------------------------------------------- BASIN ELEV. SNOW WATER EQUIVALENT TOTAL PRECIPITATION Data Site Name (Ft) % % Current Average Avg Current Average Avg ----------------------------------------------------------------------------- WYOMING SNAKE RIVER BASE CAMP 7030 .0 .0 100* 39.0 28.5 137 COTTONWOOD CREEK 7670 12.7 .0 * 53.7 37.4 144 GRAND TARGHEE 9260 65.8 -M * 60.9 -M * GRANITE CREEK 6770 .0 .0 100* 37.0 26.3 141 GRASSY LAKE 7265 -M .0 * 63.3 47.3 134 GROS VENTRE SUMMIT 8750 .1 .0 * 24.9 19.2 130 GUNSIGHT PASS 9820 18.7 -M * 30.5 -M * LEWIS LAKE DIVIDE 7850 23.5 .9 2611* 55.4 47.4 117 PHILLIPS BENCH 8200 21.3 .7 3043* 50.7 38.4 132 SALT RIVER SUMMIT 7760 .0 .0 100* 31.5 25.2 125 SNAKE RIVER STATION 6920 -M .0 * 40.6 30.0 135 SPRING CREEK DIVIDE 9000 26.8 .0 * 46.7 34.3 136 THUMB DIVIDE 7980 .1 .0 * 33.4 26.3 127 TOGWOTEE PASS 9580 34.2 10.1 339 49.2 34.4 143 TWO OCEAN PLATEAU 9240 46.4 13.3 349 48.7 38.4 127 WILLOW CREEK 8380 23.1 .0 * 63.2 44.5 142 ----- ----- Basin wide percent of average 753* 133 UPPER YELLOWSTONE-MADISON BEARTOOTH LAKE 9360 27.4 7.5 365 39.2 29.0 135 BLACK BEAR 8170 43.9 8.9 493 69.4 52.7 132 CANYON 7870 .0 .1 0* 29.4 22.1 133 FISHER CREEK 9100 45.5 15.5 294 59.4 49.4 120 MADISON PLATEAU 7750 14.8 .1 14800* 50.0 36.1 139 NORTHEAST ENTRANCE 7350 .0 .0 100* 25.5 19.4 131 PARKER PEAK 9400 32.2 6.6 488 44.1 25.3 174 SYLVAN LAKE 8420 15.5 1.9 816* 45.5 31.4 145 THUMB DIVIDE 7980 .1 .0 * 33.4 26.3 127 TWO OCEAN PLATEAU 9240 46.4 13.3 349 48.7 38.4 127 WHISKEY CREEK 6800 .0 .0 100* 38.9 29.3 133 WHITE MILL 8700 25.2 6.6 382 43.8 37.5 117 WOLVERINE 7650 .0 .0 100* 23.2 19.9 117 ----- ----- Basin wide percent of average 415* 132 WIND RIVER BURROUGHS CREEK 8750 6.2 .1 6200* 30.2 24.2 125 CASTLE CREEK 8400 .0 -M * 15.5 -M * COLD SPRINGS 9630 .0 .0 100* 20.6 18.9 109 DEER PARK 9700 12.9 1.6 806* 35.4 32.9 108 HOBBS PARK 10100 11.8 2.9 407 28.5 22.8 125 LITTLE WARM 9370 .0 .0 100* 24.2 21.6 112 SOUTH PASS 9040 .8 .9 89* 26.7 27.6 97 ST. LAWRENCE ALT 8620 .0 .0 100* 21.0 17.0 124 TOGWOTEE PASS 9580 34.2 10.1 339 49.2 34.4 143 TOWNSEND CREEK 8700 .0 .0 100* 22.9 20.5 112 ----- ----- Basin wide percent of average 422* 118 BIGHORN BASIN BALD MTN. 9380 31.8 4.8 663 37.4 27.5 136 BEAR TRAP MEADOW 8200 .0 .0 100* 20.8 16.2 128 BLACKWATER 9780 35.6 13.1 272 43.9 31.4 140 BONE SPRINGS DIV 9350 20.3 1.0 2030* 32.9 24.7 133 EVENING STAR 9200 30.9 12.2 253 54.7 36.9 148 GRAVE SPRINGS 8550 .0 .0 100* 22.4 18.0 124 KIRWIN 9550 3.9 .3 1300* 25.4 19.6 130 MARQUETTE 8760 .0 -M * 21.6 20.4 106 MIDDLE POWDER 7760 .0 .0 100* 23.5 21.0 112 OWL CREEK 8975 .0 .0 100* 15.4 12.9 119 POWDER RIVER PASS 9480 8.4 .0 * 32.7 21.8 150 SHELL CREEK 9580 18.9 1.8 1050 32.0 23.0 139 SYLVAN LAKE 8420 15.5 1.9 816* 45.5 31.4 145 SYLVAN ROAD 7120 .0 .0 100* 33.7 25.1 134 TIMBER CREEK 7950 .0 .0 100* 17.5 16.2 108 YOUNTS PEAK 8350 4.7 .1 4700* 27.8 23.9 116 ----- ----- Basin wide percent of average 483* 132 SHOSHONE RIVER BLACKWATER 9780 35.6 13.1 272 43.9 31.4 140 EVENING STAR 9200 30.9 12.2 253 54.7 36.9 148 KIRWIN 9550 3.9 .3 1300* 25.4 19.6 130 MARQUETTE 8760 .0 -M * 21.6 20.4 106 SYLVAN LAKE 8420 15.5 1.9 816* 45.5 31.4 145 SYLVAN ROAD 7120 .0 .0 100* 33.7 25.1 134 YOUNTS PEAK 8350 4.7 .1 4700* 27.8 23.9 116 ----- ----- Basin wide percent of average 328* 134 POWDER-TONGUE BEAR TRAP MEADOW 8200 .0 .0 100* 20.8 16.2 128 BIG GOOSE 7990 .0 .0 100* 26.4 17.7 149 BONE SPRINGS DIV 9350 20.3 1.0 2030* 32.9 24.7 133 BURGESS JUNCTION 7880 .0 .0 100* 27.8 20.5 136 CLOUD PEAK RESERVOIR 9860 10.9 1.1 991* 31.9 24.1 132 DOME LAKE 8880 .0 .1 0* 28.9 22.6 128 GRAVE SPRINGS 8550 .0 .0 100* 22.4 18.0 124 HANSEN SAWMILL 8360 .0 .0 100* 22.1 16.4 135 LITTLE GOOSE 8870 1.3 -M * 29.9 -M * MIDDLE POWDER 7760 .0 .0 100* 23.5 21.0 112 POWDER RIVER PASS 9480 8.4 .0 * 32.7 21.8 150 SOLDIER PARK 8720 .0 -M * 22.4 -M * SUCKER CREEK 8880 7.7 .1 7700* 33.3 23.8 140 TIE CREEK 6870 .0 .0 100* 27.3 19.5 140 ----- ----- Basin wide percent of average 2057* 134 BELLE FOURCHE BLIND PARK 6890 .0 .0 100* 30.1 20.2 149 COLE CANYON 5910 .0 .0 100* 26.8 15.5 173 NORTH RAPID CREEK 6130 .0 .0 100* 26.6 16.8 158 ----- ----- Basin wide percent of average * 159 UPPER N. PLATTE RIVER BLACKHALL MTN 9820 23.4 -M * 58.5 -M * CINNABAR PARK 9574 16.8 .0 * 51.0 28.1 181 COLUMBINE 9160 .2 .0 * 49.4 33.3 148 DIVIDE PEAK 8880 .0 .0 100* 41.7 28.7 145 ELK RIVER 8700 .1 .0 * 38.2 27.2 140 JOE WRIGHT 10120 30.6 4.2 729 55.9 36.7 152 NORTH FRENCH CREEK 10130 39.5 8.2 482 -M 36.1 * OLD BATTLE 10000 38.9 7.9 492 68.3 45.7 149 SAGE CREEK BASIN 7850 .0 .0 100* 26.6 16.6 160 SOUTH BRUSH CREEK 8440 .0 .0 100* 33.5 25.1 133 TOWER 10500 54.6 19.3 283 76.0 51.8 147 WEBBER SPRINGS 9250 2.6 .4 650* 52.1 36.0 145 WILLOW CREEK PASS 9540 .0 .0 100* 30.9 20.5 151 ----- ----- Basin wide percent of average 458* 150 LOWER N. PLATTE - SWEETWATER - LARAMIE BROOKLYN LAKE 10240 14.2 2.1 676* 47.6 32.7 146 CASPER MTN. 7900 .1 .6 17* 26.1 25.7 102 DEADMAN HILL 10220 7.4 1.9 389* 35.7 26.0 137 DEER PARK 9700 12.9 1.6 806* 35.4 32.9 108 LAPRELE CREEK 8375 .0 .0 100* 24.2 21.7 112 RENO HILL 8400 .0 .1 0* 29.5 26.3 112 ROACH 9700 .2 .6 33* 36.8 27.9 132 SAND LAKE 10050 -M 8.4 * 54.2 36.1 150 SOUTH PASS 9040 .8 .9 89* 26.7 27.6 97 WINDY PEAK 7900 .0 .0 100* 21.4 18.7 114 ----- ----- Basin wide percent of average 456* 122 LITTLE SNAKE RIVER BATTLE MOUNTAIN 7440 -M .0 * 26.4 21.9 121 DIVIDE PEAK 8880 .0 .0 100* 41.7 28.7 145 OLD BATTLE 10000 38.9 7.9 492 68.3 45.7 149 SANDSTONE RS 8150 .4 .0 * 37.9 25.9 146 WHISKEY PARK 8950 -M 1.4 * 60.3 39.4 153 ----- ----- Basin wide percent of average 497* 145 UPPER GREEN RIVER BIG SANDY OPENING 9080 .0 .0 100* 25.1 20.0 126 BLIND BULL SUM 8650 32.1 5.0 642 34.6 29.4 118 EAST RIM DIVIDE 7930 .0 .0 100* 21.5 17.2 125 ELKHART PARK G.S. 9400 .0 .0 100* 21.9 20.5 107 GROS VENTRE SUMMIT 8750 .1 .0 * 24.9 19.2 130 GUNSIGHT PASS 9820 18.7 -M * 30.5 -M * KENDALL R.S. 7740 .0 .0 100* 24.1 19.8 122 LOOMIS PARK 8240 .1 .0 * 32.3 23.6 137 NEW FORK LAKE 8340 .0 .0 100* 18.0 17.2 105 POCKET CREEK 9360 .0 -M * 23.7 -M * SNIDER BASIN 8060 .0 .0 100* 27.4 21.3 129 SPRING CREEK DIVIDE 9000 26.8 .0 * 46.7 34.3 136 TRIPLE PEAK 8500 12.7 .0 * 49.4 33.4 148 ----- ----- Basin wide percent of average 1436* 127 LOWER GREEN RIVER HAMS FORK 7840 .0 .0 100* 24.0 18.1 133 HEWINTA 9519 .0 .0 100* 29.1 21.4 136 HICKERSON PARK 9145 .0 .0 100* 19.8 13.7 145 HOLE-IN-ROCK 9150 .1 .0 * 20.8 13.5 154 INDIAN CREEK 9425 23.8 1.4 1700* 39.9 33.8 118 KELLEY R.S. 8180 .0 .0 100* 35.4 27.4 129 STEEL CREEK PARK 10200 16.6 2.5 664 33.6 24.5 137 ----- ----- Basin wide percent of average 1038* 133 UPPER BEAR RIVER BUG LAKE 7950 4.4 .0 * 43.1 26.3 164 HAYDEN FORK 9212 .1 .0 * 43.9 29.9 147 KELLEY R.S. 8180 .0 .0 100* 35.4 27.4 129 LILY LAKE 9156 .0 .0 100* 35.0 25.4 138 MONTE CRISTO 8960 31.1 1.3 2392* 55.6 35.4 157 SALT RIVER SUMMIT 7760 .0 .0 100* 31.5 25.2 125 TRIAL LAKE 9992 30.3 3.5 866 48.8 34.9 140 ----- ----- Basin wide percent of average 1373* 143 ----------------------------------------------------------------------------- -M = Missing data * = Data may not provide a valid measure of conditions. Units = inches for the Current and Average Snow Water Equivalent and Total Precipitation values If the Basin wide percent of average 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 Average represents the snow water equivalent found at selected SNOTEL sites in or near the basin compared to the average 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. Reference period for average conditions is 1971-2000. Provisional data, subject to revision. ---------------------------------------------------------------------------- -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.