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: AUGUST 9 , 2011 ----------------------------------------------------------------------------- BASIN ELEV. SNOW WATER EQUIVALENT TOTAL PRECIPITATION Data Site Name (Ft) % % Current Average Avg Current Average Avg ----------------------------------------------------------------------------- WYOMING SNAKE RIVER BASE CAMP 7030 .5 .0 * 39.6 30.7 129 COTTONWOOD CREEK 7670 .0 .0 100* 56.7 39.5 144 GRAND TARGHEE 9260 .0 -M * 63.2 -M * GRANITE CREEK 6770 .0 .0 100* 39.3 28.3 139 GRASSY LAKE 7265 .0 .0 100* 65.9 50.1 132 GROS VENTRE SUMMIT 8750 .0 .0 100* 26.5 21.8 122 GUNSIGHT PASS 9820 -M -M * 32.5 -M * LEWIS LAKE DIVIDE 7850 .1 .0 * 59.7 50.1 119 PHILLIPS BENCH 8200 .0 .0 100* 52.9 40.6 130 SALT RIVER SUMMIT 7760 .0 .0 100* 33.2 26.9 123 SNAKE RIVER STATION 6920 .0 .0 100* 44.4 32.5 137 SPRING CREEK DIVIDE 9000 -M .0 * -M 36.4 * THUMB DIVIDE 7980 .1 .0 * 35.7 28.2 127 TOGWOTEE PASS 9580 .0 .0 100* 50.0 37.4 134 TWO OCEAN PLATEAU 9240 .0 .0 100* 51.1 41.7 123 WILLOW CREEK 8380 .0 .0 100* 65.5 47.6 138 ----- ----- Basin wide percent of average * 131 UPPER YELLOWSTONE-MADISON BEARTOOTH LAKE 9360 .0 .0 100* 41.5 32.3 128 BLACK BEAR 8170 .0 .0 100* 72.8 55.9 130 CANYON 7870 .0 .0 100* 29.8 24.8 120 FISHER CREEK 9100 .0 .0 100* 61.3 53.8 114 MADISON PLATEAU 7750 .0 .0 100* 52.1 38.9 134 NORTHEAST ENTRANCE 7350 .1 .0 * 27.5 22.8 121 PARKER PEAK 9400 .0 .0 100* 45.8 28.2 162 SYLVAN LAKE 8420 .1 .0 * 47.6 34.5 138 THUMB DIVIDE 7980 .1 .0 * 35.7 28.2 127 TWO OCEAN PLATEAU 9240 .0 .0 100* 51.1 41.7 123 WHISKEY CREEK 6800 .0 .0 100* 40.9 31.8 129 WHITE MILL 8700 .0 .0 100* 44.8 41.5 108 WOLVERINE 7650 -M .0 * 26.4 22.7 116 ----- ----- Basin wide percent of average * 126 WIND RIVER BURROUGHS CREEK 8750 .0 .0 100* 31.1 26.7 116 CASTLE CREEK 8400 .1 -M * 16.6 -M * COLD SPRINGS 9630 .0 .0 100* 22.2 21.2 105 DEER PARK 9700 .0 .0 100* 36.8 35.2 105 HOBBS PARK 10100 .0 .0 100* 30.2 25.5 118 LITTLE WARM 9370 .0 .0 100* 27.1 24.4 111 SOUTH PASS 9040 .0 .0 100* 26.8 29.6 91 ST. LAWRENCE ALT 8620 .0 .0 100* 21.9 19.2 114 TOGWOTEE PASS 9580 .0 .0 100* 50.0 37.4 134 TOWNSEND CREEK 8700 .0 .0 100* 23.9 22.7 105 ----- ----- Basin wide percent of average * 112 BIGHORN BASIN BALD MTN. 9380 -M .0 * 38.2 30.8 124 BEAR TRAP MEADOW 8200 .0 .0 100* 22.1 18.8 118 BLACKWATER 9780 .0 .0 100* 43.6 35.0 125 BONE SPRINGS DIV 9350 -M .0 * 34.5 28.3 122 EVENING STAR 9200 .1 .0 * 57.5 40.9 141 GRAVE SPRINGS 8550 .2 .0 * 24.0 20.9 115 KIRWIN 9550 .0 .0 100* 26.5 23.5 113 MARQUETTE 8760 .0 -M * 21.7 23.8 91 MIDDLE POWDER 7760 .0 .0 100* 25.4 23.7 107 OWL CREEK 8975 .0 .0 100* 16.3 15.6 104 POWDER RIVER PASS 9480 .0 .0 100* 33.1 24.6 135 SHELL CREEK 9580 .0 .0 100* 33.3 26.2 127 SYLVAN LAKE 8420 .1 .0 * 47.6 34.5 138 SYLVAN ROAD 7120 .0 .0 100* 35.5 27.6 129 TIMBER CREEK 7950 .0 .0 100* 18.5 18.9 98 YOUNTS PEAK 8350 .0 .0 100* 29.3 27.5 107 ----- ----- Basin wide percent of average * 121 SHOSHONE RIVER BLACKWATER 9780 .0 .0 100* 43.6 35.0 125 EVENING STAR 9200 .1 .0 * 57.5 40.9 141 KIRWIN 9550 .0 .0 100* 26.5 23.5 113 MARQUETTE 8760 .0 -M * 21.7 23.8 91 SYLVAN LAKE 8420 .1 .0 * 47.6 34.5 138 SYLVAN ROAD 7120 .0 .0 100* 35.5 27.6 129 YOUNTS PEAK 8350 .0 .0 100* 29.3 27.5 107 ----- ----- Basin wide percent of average * 123 POWDER-TONGUE BEAR TRAP MEADOW 8200 .0 .0 100* 22.1 18.8 118 BIG GOOSE 7990 -M .0 * 27.5 19.9 138 BONE SPRINGS DIV 9350 -M .0 * 34.5 28.3 122 BURGESS JUNCTION 7880 -M .0 * 29.1 23.9 122 CLOUD PEAK RESERVOIR 9860 .1 .0 * 34.2 27.7 123 DOME LAKE 8880 .0 .0 100* 30.5 25.6 119 GRAVE SPRINGS 8550 .2 .0 * 24.0 20.9 115 HANSEN SAWMILL 8360 -M .0 * 23.8 19.4 123 LITTLE GOOSE 8870 .1 -M * 31.6 -M * MIDDLE POWDER 7760 .0 .0 100* 25.4 23.7 107 POWDER RIVER PASS 9480 .0 .0 100* 33.1 24.6 135 SOLDIER PARK 8720 -M -M * 23.7 -M * SUCKER CREEK 8880 -M .0 * 34.3 27.0 127 TIE CREEK 6870 .0 .0 100* 28.9 21.9 132 ----- ----- Basin wide percent of average * 123 BELLE FOURCHE BLIND PARK 6890 .0 .0 100* 32.2 24.4 132 COLE CANYON 5910 .0 .0 100* 30.8 19.9 155 NORTH RAPID CREEK 6130 .0 .0 100* 30.9 22.9 135 ----- ----- Basin wide percent of average * 140 UPPER N. PLATTE RIVER BLACKHALL MTN 9820 .0 -M * 62.1 -M * CINNABAR PARK 9574 .0 .0 100* 50.3 30.4 165 COLUMBINE 9160 .0 .0 100* 51.9 35.6 146 DIVIDE PEAK 8880 .0 .0 100* 44.1 30.7 144 ELK RIVER 8700 .0 .0 100* 40.9 29.5 139 JOE WRIGHT 10120 .1 .0 * 60.3 40.5 149 NORTH FRENCH CREEK 10130 -M .0 * -M 39.4 * OLD BATTLE 10000 .0 .0 100* 70.0 48.1 146 SAGE CREEK BASIN 7850 .0 .0 100* 28.2 17.8 158 SOUTH BRUSH CREEK 8440 .0 .0 100* 36.4 27.8 131 TOWER 10500 .0 .0 100* 79.8 54.6 146 WEBBER SPRINGS 9250 .0 .0 100* 53.2 38.3 139 WILLOW CREEK PASS 9540 .0 .0 100* 35.3 23.4 151 ----- ----- Basin wide percent of average * 146 LOWER N. PLATTE - SWEETWATER - LARAMIE BROOKLYN LAKE 10240 .0 .0 100* 49.4 35.6 139 CASPER MTN. 7900 .0 .0 100* 27.8 27.9 100 DEADMAN HILL 10220 .0 .0 100* 37.8 28.6 132 DEER PARK 9700 .0 .0 100* 36.8 35.2 105 LAPRELE CREEK 8375 .0 .0 100* 25.5 24.6 104 RENO HILL 8400 .0 .0 100* 30.9 28.7 108 ROACH 9700 .0 .0 100* 39.4 30.6 129 SAND LAKE 10050 .0 .0 100* 57.1 38.9 147 SOUTH PASS 9040 .0 .0 100* 26.8 29.6 91 WINDY PEAK 7900 .0 .0 100* 22.7 21.5 106 ----- ----- Basin wide percent of average * 118 LITTLE SNAKE RIVER BATTLE MOUNTAIN 7440 -M .0 * -M 23.4 * DIVIDE PEAK 8880 .0 .0 100* 44.1 30.7 144 OLD BATTLE 10000 .0 .0 100* 70.0 48.1 146 SANDSTONE RS 8150 2.1 .0 * 41.8 28.0 149 WHISKEY PARK 8950 .0 .0 100* 64.3 42.0 153 ----- ----- Basin wide percent of average * 148 UPPER GREEN RIVER BIG SANDY OPENING 9080 .0 .0 100* 26.8 22.1 121 BLIND BULL SUM 8650 .0 .0 100* 37.0 31.5 117 EAST RIM DIVIDE 7930 .3 .0 * 23.7 18.9 125 ELKHART PARK G.S. 9400 .0 .0 100* 23.8 22.8 104 GROS VENTRE SUMMIT 8750 .0 .0 100* 26.5 21.8 122 GUNSIGHT PASS 9820 -M -M * 32.5 -M * KENDALL R.S. 7740 .0 .0 100* 24.7 21.6 114 LOOMIS PARK 8240 .1 .0 * 33.9 25.8 131 NEW FORK LAKE 8340 .1 .0 * 19.3 19.3 100 POCKET CREEK 9360 .0 -M * 25.1 -M * SNIDER BASIN 8060 .0 .0 100* 28.7 22.8 126 SPRING CREEK DIVIDE 9000 -M .0 * -M 36.4 * TRIPLE PEAK 8500 .0 .0 100* 51.8 35.6 146 ----- ----- Basin wide percent of average * 122 LOWER GREEN RIVER HAMS FORK 7840 .2 .0 * 25.5 19.8 129 HEWINTA 9519 .0 .0 100* 33.2 24.4 136 HICKERSON PARK 9145 .0 .0 100* 23.2 16.3 142 HOLE-IN-ROCK 9150 .2 .0 * 25.4 16.1 158 INDIAN CREEK 9425 .0 .0 100* 41.6 35.5 117 KELLEY R.S. 8180 .0 .0 100* 37.0 29.1 127 STEEL CREEK PARK 10200 .0 .0 100* 37.6 27.5 137 ----- ----- Basin wide percent of average * 132 UPPER BEAR RIVER BUG LAKE 7950 .0 .0 100* 45.3 27.7 164 HAYDEN FORK 9212 .0 .0 100* 47.5 32.2 148 KELLEY R.S. 8180 .0 .0 100* 37.0 29.1 127 LILY LAKE 9156 .0 .0 100* 37.8 27.5 137 MONTE CRISTO 8960 .0 .0 100* 57.6 37.0 156 SALT RIVER SUMMIT 7760 .0 .0 100* 33.2 26.9 123 TRIAL LAKE 9992 .0 .0 100* 52.5 37.8 139 ----- ----- 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.