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: JULY 25 , 2011 ----------------------------------------------------------------------------- BASIN ELEV. SNOW WATER EQUIVALENT TOTAL PRECIPITATION Data Site Name (Ft) % % Current Average Avg Current Average Avg ----------------------------------------------------------------------------- WYOMING SNAKE RIVER BASE CAMP 7030 .2 .0 * 38.9 30.0 130 COTTONWOOD CREEK 7670 .0 .0 100* 55.0 38.8 142 GRAND TARGHEE 9260 .0 -M * 61.8 -M * GRANITE CREEK 6770 .0 .0 100* 38.5 27.7 139 GRASSY LAKE 7265 .0 .0 100* 64.0 49.4 130 GROS VENTRE SUMMIT 8750 .0 .0 100* 25.6 21.0 122 GUNSIGHT PASS 9820 -M -M * 31.3 -M * LEWIS LAKE DIVIDE 7850 -M .0 * 57.4 49.3 116 PHILLIPS BENCH 8200 .7 .0 * 51.8 39.9 130 SALT RIVER SUMMIT 7760 .0 .0 100* 31.7 26.4 120 SNAKE RIVER STATION 6920 .0 .0 100* -M 31.8 * SPRING CREEK DIVIDE 9000 -M .0 * -M 35.7 * THUMB DIVIDE 7980 .1 .0 * -M 27.7 * TOGWOTEE PASS 9580 .0 .0 100* 49.1 36.4 135 TWO OCEAN PLATEAU 9240 .0 .0 100* 50.1 40.8 123 WILLOW CREEK 8380 -M .0 * 63.8 46.6 137 ----- ----- Basin wide percent of average * 129 UPPER YELLOWSTONE-MADISON BEARTOOTH LAKE 9360 .0 .0 100* 40.8 31.5 130 BLACK BEAR 8170 .0 .0 100* 72.3 55.0 131 CANYON 7870 .0 .0 100* 29.9 24.0 125 FISHER CREEK 9100 .0 .0 100* 60.7 52.6 115 MADISON PLATEAU 7750 .0 .0 100* 51.7 38.2 135 NORTHEAST ENTRANCE 7350 .0 .0 100* 26.9 21.9 123 PARKER PEAK 9400 .0 .0 100* 45.4 27.4 166 SYLVAN LAKE 8420 .0 .0 100* 46.6 33.7 138 THUMB DIVIDE 7980 .1 .0 * -M 27.7 * TWO OCEAN PLATEAU 9240 .0 .0 100* 50.1 40.8 123 WHISKEY CREEK 6800 .0 .0 100* 40.9 31.2 131 WHITE MILL 8700 .0 .0 100* 44.2 40.4 109 WOLVERINE 7650 .0 .0 100* 25.2 21.9 115 ----- ----- Basin wide percent of average * 128 WIND RIVER BURROUGHS CREEK 8750 .0 .0 100* 31.1 25.9 120 CASTLE CREEK 8400 .0 -M * 15.9 -M * COLD SPRINGS 9630 .0 .0 100* 22.3 20.4 109 DEER PARK 9700 -M .0 * 37.1 34.5 108 HOBBS PARK 10100 -M .0 * 30.5 24.7 123 LITTLE WARM 9370 .0 .0 100* 26.5 23.6 112 SOUTH PASS 9040 .1 .0 * 27.1 29.0 93 ST. LAWRENCE ALT 8620 .0 .0 100* 21.8 18.5 118 TOGWOTEE PASS 9580 .0 .0 100* 49.1 36.4 135 TOWNSEND CREEK 8700 .0 .0 100* 23.7 22.1 107 ----- ----- Basin wide percent of average * 115 BIGHORN BASIN BALD MTN. 9380 .0 .0 100* 38.8 30.0 129 BEAR TRAP MEADOW 8200 .0 .0 100* 22.1 18.2 121 BLACKWATER 9780 .0 .0 100* 44.5 34.0 131 BONE SPRINGS DIV 9350 .0 .0 100* 34.5 27.3 126 EVENING STAR 9200 .0 .0 100* 56.6 39.8 142 GRAVE SPRINGS 8550 .0 .0 100* 23.8 20.1 118 KIRWIN 9550 .0 .0 100* 25.6 22.3 115 MARQUETTE 8760 .0 -M * 21.7 22.8 95 MIDDLE POWDER 7760 .0 .0 100* 25.9 23.1 112 OWL CREEK 8975 .0 .0 100* 16.6 14.8 112 POWDER RIVER PASS 9480 .0 .0 100* 33.0 23.8 139 SHELL CREEK 9580 .0 .0 100* 32.9 25.4 130 SYLVAN LAKE 8420 .0 .0 100* 46.6 33.7 138 SYLVAN ROAD 7120 .0 .0 100* 35.0 27.0 130 TIMBER CREEK 7950 .0 .0 100* 18.1 18.0 101 YOUNTS PEAK 8350 .0 .0 100* 28.6 26.5 108 ----- ----- Basin wide percent of average * 124 SHOSHONE RIVER BLACKWATER 9780 .0 .0 100* 44.5 34.0 131 EVENING STAR 9200 .0 .0 100* 56.6 39.8 142 KIRWIN 9550 .0 .0 100* 25.6 22.3 115 MARQUETTE 8760 .0 -M * 21.7 22.8 95 SYLVAN LAKE 8420 .0 .0 100* 46.6 33.7 138 SYLVAN ROAD 7120 .0 .0 100* 35.0 27.0 130 YOUNTS PEAK 8350 .0 .0 100* 28.6 26.5 108 ----- ----- Basin wide percent of average * 125 POWDER-TONGUE BEAR TRAP MEADOW 8200 .0 .0 100* 22.1 18.2 121 BIG GOOSE 7990 .0 .0 100* 27.5 19.5 141 BONE SPRINGS DIV 9350 .0 .0 100* 34.5 27.3 126 BURGESS JUNCTION 7880 .0 .0 100* 29.0 23.0 126 CLOUD PEAK RESERVOIR 9860 .0 .0 100* 33.8 26.7 127 DOME LAKE 8880 .0 .0 100* 30.5 24.7 123 GRAVE SPRINGS 8550 .0 .0 100* 23.8 20.1 118 HANSEN SAWMILL 8360 .0 .0 100* 23.6 18.5 128 LITTLE GOOSE 8870 .0 -M * 31.0 -M * MIDDLE POWDER 7760 .0 .0 100* 25.9 23.1 112 POWDER RIVER PASS 9480 .0 .0 100* 33.0 23.8 139 SOLDIER PARK 8720 .0 -M * 23.5 -M * SUCKER CREEK 8880 .0 .0 100* 34.6 26.1 133 TIE CREEK 6870 .0 .0 100* 28.6 21.2 135 ----- ----- Basin wide percent of average * 127 BELLE FOURCHE BLIND PARK 6890 .0 .0 100* 32.0 23.2 138 COLE CANYON 5910 .0 .0 100* 30.4 18.6 163 NORTH RAPID CREEK 6130 .0 .0 100* 30.3 21.3 142 ----- ----- Basin wide percent of average * 147 UPPER N. PLATTE RIVER BLACKHALL MTN 9820 .0 -M * 61.8 -M * CINNABAR PARK 9574 -M .0 * 49.8 29.8 167 COLUMBINE 9160 .0 .0 100* 51.7 34.8 149 DIVIDE PEAK 8880 .0 .0 100* 43.6 30.0 145 ELK RIVER 8700 .0 .0 100* 40.7 28.7 142 JOE WRIGHT 10120 .0 .0 100* 59.6 39.2 152 NORTH FRENCH CREEK 10130 .0 .0 100* -M 38.4 * OLD BATTLE 10000 .0 .0 100* 69.8 47.4 147 SAGE CREEK BASIN 7850 -M .0 * -M 17.4 * SOUTH BRUSH CREEK 8440 .0 .0 100* 36.2 27.0 134 TOWER 10500 .0 .0 100* 78.9 53.7 147 WEBBER SPRINGS 9250 .0 .0 100* 53.3 37.6 142 WILLOW CREEK PASS 9540 .0 .0 100* 35.0 22.4 156 ----- ----- Basin wide percent of average * 148 LOWER N. PLATTE - SWEETWATER - LARAMIE BROOKLYN LAKE 10240 .0 .0 100* 49.4 34.7 142 CASPER MTN. 7900 .0 .0 100* 27.2 27.2 100 DEADMAN HILL 10220 .0 .0 100* 37.3 27.6 135 DEER PARK 9700 -M .0 * 37.1 34.5 108 LAPRELE CREEK 8375 .0 .0 100* 25.2 23.4 108 RENO HILL 8400 .0 .0 100* 30.7 27.7 111 ROACH 9700 .0 .0 100* 39.3 29.6 133 SAND LAKE 10050 .0 .0 100* 56.8 38.0 149 SOUTH PASS 9040 .1 .0 * 27.1 29.0 93 WINDY PEAK 7900 .0 .0 100* 22.8 20.5 111 ----- ----- Basin wide percent of average * 121 LITTLE SNAKE RIVER BATTLE MOUNTAIN 7440 -M .0 * -M 22.9 * DIVIDE PEAK 8880 .0 .0 100* 43.6 30.0 145 OLD BATTLE 10000 .0 .0 100* 69.8 47.4 147 SANDSTONE RS 8150 1.9 .0 * 40.9 27.3 150 WHISKEY PARK 8950 -M .0 * 64.0 41.2 155 ----- ----- Basin wide percent of average * 150 UPPER GREEN RIVER BIG SANDY OPENING 9080 .0 .0 100* 26.6 21.5 124 BLIND BULL SUM 8650 .0 .0 100* 35.9 30.8 117 EAST RIM DIVIDE 7930 .2 .0 * 22.9 18.3 125 ELKHART PARK G.S. 9400 .0 .0 100* 23.1 22.0 105 GROS VENTRE SUMMIT 8750 .0 .0 100* 25.6 21.0 122 GUNSIGHT PASS 9820 -M -M * 31.3 -M * KENDALL R.S. 7740 -M .0 * 23.9 21.0 114 LOOMIS PARK 8240 .1 .0 * 33.1 25.0 132 NEW FORK LAKE 8340 -M .0 * -M 18.6 * POCKET CREEK 9360 .0 -M * 24.9 -M * SNIDER BASIN 8060 .0 .0 100* 28.3 22.3 127 SPRING CREEK DIVIDE 9000 -M .0 * -M 35.7 * TRIPLE PEAK 8500 .0 .0 100* 50.3 35.0 144 ----- ----- Basin wide percent of average * 124 LOWER GREEN RIVER HAMS FORK 7840 .1 .0 * 25.1 19.3 130 HEWINTA 9519 .0 .0 100* 32.3 23.5 137 HICKERSON PARK 9145 .0 .0 100* 22.3 15.3 146 HOLE-IN-ROCK 9150 .2 .0 * 24.1 15.2 159 INDIAN CREEK 9425 .0 .0 100* 41.0 34.9 117 KELLEY R.S. 8180 .0 .0 100* -M 28.5 * STEEL CREEK PARK 10200 .0 .0 100* 36.9 26.5 139 ----- ----- Basin wide percent of average * 135 UPPER BEAR RIVER BUG LAKE 7950 .0 .0 100* 44.1 27.2 162 HAYDEN FORK 9212 .0 .0 100* 46.8 31.3 150 KELLEY R.S. 8180 .0 .0 100* -M 28.5 * LILY LAKE 9156 .0 .0 100* 36.9 26.7 138 MONTE CRISTO 8960 .0 .0 100* 56.0 36.5 153 SALT RIVER SUMMIT 7760 .0 .0 100* 31.7 26.4 120 TRIAL LAKE 9992 .1 .0 * 51.9 36.6 142 ----- ----- Basin wide percent of average * 145 ----------------------------------------------------------------------------- -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.