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: AUGUST 1 , 2011 ----------------------------------------------------------------------------- BASIN ELEV. SNOW WATER EQUIVALENT TOTAL PRECIPITATION Data Site Name (Ft) % % Current Average Avg Current Average Avg ----------------------------------------------------------------------------- WYOMING SNAKE RIVER BASE CAMP 7030 .3 .0 * 39.0 30.3 129 COTTONWOOD CREEK 7670 .0 .0 100* 55.2 39.1 141 GRAND TARGHEE 9260 .0 -M * 62.1 -M * GRANITE CREEK 6770 .1 .0 * 38.6 28.0 138 GRASSY LAKE 7265 .0 .0 100* 64.5 49.7 130 GROS VENTRE SUMMIT 8750 .0 .0 100* 25.6 21.4 120 GUNSIGHT PASS 9820 -M -M * 31.5 -M * LEWIS LAKE DIVIDE 7850 .2 .0 * 58.0 49.7 117 PHILLIPS BENCH 8200 -M .0 * 52.1 40.2 130 SALT RIVER SUMMIT 7760 .1 .0 * 31.8 26.6 120 SNAKE RIVER STATION 6920 .0 .0 100* 41.9 32.2 130 SPRING CREEK DIVIDE 9000 -M .0 * -M 36.0 * THUMB DIVIDE 7980 .2 .0 * 34.8 28.0 124 TOGWOTEE PASS 9580 .0 .0 100* 49.4 36.8 134 TWO OCEAN PLATEAU 9240 .0 .0 100* 50.2 41.2 122 WILLOW CREEK 8380 .1 .0 * 64.0 47.1 136 ----- ----- Basin wide percent of average * 129 UPPER YELLOWSTONE-MADISON BEARTOOTH LAKE 9360 .0 .0 100* 40.7 31.9 128 BLACK BEAR 8170 .0 .0 100* 72.4 55.4 131 CANYON 7870 .0 .0 100* 29.8 24.4 122 FISHER CREEK 9100 .0 .0 100* 60.6 53.2 114 MADISON PLATEAU 7750 .0 .0 100* 51.8 38.5 135 NORTHEAST ENTRANCE 7350 .0 .0 100* 26.9 22.3 121 PARKER PEAK 9400 .0 .0 100* 45.5 27.8 164 SYLVAN LAKE 8420 .0 .0 100* 46.8 34.1 137 THUMB DIVIDE 7980 .2 .0 * 34.8 28.0 124 TWO OCEAN PLATEAU 9240 .0 .0 100* 50.2 41.2 122 WHISKEY CREEK 6800 .1 .0 * 40.5 31.5 129 WHITE MILL 8700 .0 .0 100* 44.0 40.9 108 WOLVERINE 7650 .0 .0 100* 25.3 22.3 113 ----- ----- Basin wide percent of average * 126 WIND RIVER BURROUGHS CREEK 8750 .0 .0 100* 30.8 26.3 117 CASTLE CREEK 8400 .1 -M * 16.0 -M * COLD SPRINGS 9630 .1 .0 * 22.2 20.8 107 DEER PARK 9700 -M .0 * 37.1 34.8 107 HOBBS PARK 10100 -M .0 * 30.2 25.1 120 LITTLE WARM 9370 .0 .0 100* 26.5 24.0 110 SOUTH PASS 9040 .1 .0 * 26.9 29.3 92 ST. LAWRENCE ALT 8620 .1 .0 * 21.8 18.9 115 TOGWOTEE PASS 9580 .0 .0 100* 49.4 36.8 134 TOWNSEND CREEK 8700 .0 .0 100* 24.2 22.4 108 ----- ----- Basin wide percent of average * 113 BIGHORN BASIN BALD MTN. 9380 -M .0 * 38.7 30.4 127 BEAR TRAP MEADOW 8200 .0 .0 100* 22.0 18.5 119 BLACKWATER 9780 -M .0 * 43.8 34.6 127 BONE SPRINGS DIV 9350 .0 .0 100* 34.5 27.8 124 EVENING STAR 9200 -M .0 * 56.7 40.4 140 GRAVE SPRINGS 8550 .1 .0 * 23.9 20.6 116 KIRWIN 9550 .0 .0 100* 25.7 23.0 112 MARQUETTE 8760 .1 -M * 21.4 23.3 92 MIDDLE POWDER 7760 .0 .0 100* 25.9 23.4 111 OWL CREEK 8975 .1 .0 * 16.6 15.2 109 POWDER RIVER PASS 9480 .0 .0 100* 33.1 24.2 137 SHELL CREEK 9580 .0 .0 100* 33.2 25.8 129 SYLVAN LAKE 8420 .0 .0 100* 46.8 34.1 137 SYLVAN ROAD 7120 .0 .0 100* 35.0 27.3 128 TIMBER CREEK 7950 .0 .0 100* 18.1 18.4 98 YOUNTS PEAK 8350 .0 .0 100* 28.6 27.0 106 ----- ----- Basin wide percent of average * 122 SHOSHONE RIVER BLACKWATER 9780 -M .0 * 43.8 34.6 127 EVENING STAR 9200 -M .0 * 56.7 40.4 140 KIRWIN 9550 .0 .0 100* 25.7 23.0 112 MARQUETTE 8760 .1 -M * 21.4 23.3 92 SYLVAN LAKE 8420 .0 .0 100* 46.8 34.1 137 SYLVAN ROAD 7120 .0 .0 100* 35.0 27.3 128 YOUNTS PEAK 8350 .0 .0 100* 28.6 27.0 106 ----- ----- Basin wide percent of average * 123 POWDER-TONGUE BEAR TRAP MEADOW 8200 .0 .0 100* 22.0 18.5 119 BIG GOOSE 7990 .0 .0 100* 27.5 19.7 140 BONE SPRINGS DIV 9350 .0 .0 100* 34.5 27.8 124 BURGESS JUNCTION 7880 .0 .0 100* 28.9 23.5 123 CLOUD PEAK RESERVOIR 9860 .0 .0 100* 34.4 27.2 126 DOME LAKE 8880 .0 .0 100* 30.7 25.2 122 GRAVE SPRINGS 8550 .1 .0 * 23.9 20.6 116 HANSEN SAWMILL 8360 .0 .0 100* 23.7 19.0 125 LITTLE GOOSE 8870 .0 -M * 31.1 -M * MIDDLE POWDER 7760 .0 .0 100* 25.9 23.4 111 POWDER RIVER PASS 9480 .0 .0 100* 33.1 24.2 137 SOLDIER PARK 8720 -M -M * 23.6 -M * SUCKER CREEK 8880 .0 .0 100* 34.7 26.6 130 TIE CREEK 6870 .0 .0 100* 28.7 21.5 133 ----- ----- Basin wide percent of average * 126 BELLE FOURCHE BLIND PARK 6890 .1 .0 * 32.0 23.9 134 COLE CANYON 5910 .2 .0 * 30.6 19.2 159 NORTH RAPID CREEK 6130 .4 .0 * 30.6 22.2 138 ----- ----- Basin wide percent of average * 143 UPPER N. PLATTE RIVER BLACKHALL MTN 9820 .0 -M * 61.8 -M * CINNABAR PARK 9574 -M .0 * 50.1 30.1 166 COLUMBINE 9160 .0 .0 100* 52.0 35.2 148 DIVIDE PEAK 8880 .0 .0 100* 44.1 30.3 146 ELK RIVER 8700 .0 .0 100* 40.8 29.1 140 JOE WRIGHT 10120 .1 .0 * 60.3 39.8 152 NORTH FRENCH CREEK 10130 .0 .0 100* -M 38.9 * OLD BATTLE 10000 .0 .0 100* 69.9 47.7 147 SAGE CREEK BASIN 7850 .0 .0 100* 28.2 17.6 160 SOUTH BRUSH CREEK 8440 .0 .0 100* 36.4 27.4 133 TOWER 10500 .0 .0 100* 80.0 54.1 148 WEBBER SPRINGS 9250 .0 .0 100* 53.3 37.9 141 WILLOW CREEK PASS 9540 .0 .0 100* 35.0 22.9 153 ----- ----- Basin wide percent of average * 148 LOWER N. PLATTE - SWEETWATER - LARAMIE BROOKLYN LAKE 10240 .0 .0 100* 49.5 35.1 141 CASPER MTN. 7900 .0 .0 100* 27.7 27.6 100 DEADMAN HILL 10220 .0 .0 100* 37.5 28.0 134 DEER PARK 9700 -M .0 * 37.1 34.8 107 LAPRELE CREEK 8375 .0 .0 100* 25.1 24.0 105 RENO HILL 8400 .0 .0 100* 30.9 28.2 110 ROACH 9700 .0 .0 100* 39.3 30.1 131 SAND LAKE 10050 .0 .0 100* 57.2 38.4 149 SOUTH PASS 9040 .1 .0 * 26.9 29.3 92 WINDY PEAK 7900 .0 .0 100* 22.8 21.0 109 ----- ----- Basin wide percent of average * 119 LITTLE SNAKE RIVER BATTLE MOUNTAIN 7440 -M .0 * -M 23.2 * DIVIDE PEAK 8880 .0 .0 100* 44.1 30.3 146 OLD BATTLE 10000 .0 .0 100* 69.9 47.7 147 SANDSTONE RS 8150 1.7 .0 * 41.5 27.6 150 WHISKEY PARK 8950 .0 .0 100* 64.1 41.6 154 ----- ----- Basin wide percent of average * 149 UPPER GREEN RIVER BIG SANDY OPENING 9080 .1 .0 * 26.7 21.8 122 BLIND BULL SUM 8650 .0 .0 100* 36.1 31.1 116 EAST RIM DIVIDE 7930 .3 .0 * 23.0 18.5 124 ELKHART PARK G.S. 9400 .0 .0 100* 23.3 22.4 104 GROS VENTRE SUMMIT 8750 .0 .0 100* 25.6 21.4 120 GUNSIGHT PASS 9820 -M -M * 31.5 -M * KENDALL R.S. 7740 .1 .0 * 24.0 21.3 113 LOOMIS PARK 8240 .2 .0 * 33.2 25.3 131 NEW FORK LAKE 8340 .1 .0 * 18.7 18.9 99 POCKET CREEK 9360 .0 -M * 24.9 -M * SNIDER BASIN 8060 .0 .0 100* 28.5 22.5 127 SPRING CREEK DIVIDE 9000 -M .0 * -M 36.0 * TRIPLE PEAK 8500 .1 .0 * 50.4 35.2 143 ----- ----- Basin wide percent of average * 121 LOWER GREEN RIVER HAMS FORK 7840 .3 .0 * 25.1 19.5 129 HEWINTA 9519 .0 .0 100* 32.5 23.9 136 HICKERSON PARK 9145 .0 .0 100* 22.6 15.7 144 HOLE-IN-ROCK 9150 .3 .0 * 24.5 15.6 157 INDIAN CREEK 9425 .0 .0 100* 41.0 35.2 116 KELLEY R.S. 8180 .0 .0 100* 36.3 28.8 126 STEEL CREEK PARK 10200 .0 .0 100* 37.1 26.9 138 ----- ----- Basin wide percent of average * 132 UPPER BEAR RIVER BUG LAKE 7950 .0 .0 100* 44.3 27.4 162 HAYDEN FORK 9212 .0 .0 100* 47.3 31.7 149 KELLEY R.S. 8180 .0 .0 100* 36.3 28.8 126 LILY LAKE 9156 .0 .0 100* 37.4 27.1 138 MONTE CRISTO 8960 .1 .0 * 56.7 36.7 154 SALT RIVER SUMMIT 7760 .1 .0 * 31.8 26.6 120 TRIAL LAKE 9992 .1 .0 * 52.3 37.1 141 ----- ----- Basin wide percent of average * 142 ----------------------------------------------------------------------------- -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.