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 SUNDAY: JULY 27 , 1997 ----------------------------------------------------------------------------- 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 * 47.3 30.7 154 COTTONWOOD CREEK 7600 .0 .0 100* 48.0 34.2 140 GRANITE CREEK 6770 .0 .0 100* 41.4 33.6 123 GRASSY LAKE 7265 .0 .0 100* 71.3 50.8 140 GROS VENTRE SUMMIT 8775 .0 .0 100* 29.7 22.8 130 LEWIS LAKE DIVIDE 7860 .0 .0 100* 71.4 51.6 138 PHILLIPS BENCH 8200 .0 .0 100* 60.4 40.7 148 SALT RIVER SUMMIT 7600 .0 .0 100* 33.5 24.2 138 SNAKE RIVER STATION 6920 .0 .0 100* 48.8 35.7 137 SPRING CREEK DIVIDE 9000 .1 .0 * 43.0 36.8 117 THUMB DIVIDE 7980 .0 .0 100* 44.5 28.8 155 TOGWOTEE PASS 9580 .0 .0 100* 48.2 38.7 125 TWO OCEAN PLATEAU 9360 -M .0 * 58.3 42.3 138 WILLOW CREEK 8450 .1 .0 * 65.3 43.8 149 ----- ----- Basin wide percent of average * 138 UPPER YELLOWSTONE-MADISON BEARTOOTH LAKE 9275 .2 .0 * 41.9 29.3 143 BLACK BEAR 7950 -M .0 * 83.9 56.2 149 CANYON 7940 .2 .0 * 34.0 23.0 148 FISHER CREEK 9100 .6 .0 * 67.2 53.2 126 MADISON PLATEAU 7750 .1 .0 * 51.5 37.7 137 NORTHEAST ENTRANCE 7350 .0 .0 100* 31.5 20.8 151 PARKER PEAK 9400 .2 .2 100* 34.8 26.6 131 SYLVAN LAKE 8420 .0 .0 100* 47.1 31.7 149 THUMB DIVIDE 7980 .0 .0 100* 44.5 28.8 155 TWO OCEAN PLATEAU 9360 -M .0 * 58.3 42.3 138 WHISKEY CREEK 6800 .4 .0 * 40.4 32.2 125 WHITE MILL 8700 .6 .0 * 45.8 41.8 110 WOLVERINE 7650 .4 .0 * 24.4 22.4 109 ----- ----- Basin wide percent of average 100* 136 WIND RIVER BURROUGHS CREEK 8750 .0 .0 100* 35.2 25.5 138 CHRISTINA LAKE 9980 .0 .0 100* 31.5 27.4 115 COLD SPRINGS 9630 .1 .0 * 22.5 19.6 115 HOBBS PARK 10100 .0 .0 100* 23.8 24.6 97 LITTLE WARM 9620 .4 .0 * 30.6 22.9 134 SOUTH PASS 9040 .2 .0 * 31.4 27.7 113 ST. LAWRENCE ALT 8620 .0 .0 100* 20.6 18.1 114 TOGWOTEE PASS 9580 .0 .0 100* 48.2 38.7 125 TOWNSEND CREEK 8700 .0 .0 100* 22.6 22.1 102 ----- ----- Basin wide percent of average * 118 BIGHORN BASIN BALD MTN. 9375 -M .0 * 34.8 29.2 119 BEAR TRAP MEADOW 7900 .1 .0 * 21.4 17.5 122 BLACKWATER 9780 .2 .1 200* 42.0 30.3 139 BONE SPRINGS DIV 9350 .1 .0 * 31.1 27.0 115 EVENING STAR 9200 .1 .1 100* 54.2 37.1 146 GRAVE SPRINGS 8550 .1 -M * 21.8 20.5 106 KIRWIN 9550 .2 .0 * 28.7 21.2 135 LOST CREEK 8080 -M .0 * -M 22.8 * MARQUETTE 8760 .0 .0 100* 25.7 21.7 118 MIDDLE POWDER 7760 .0 .0 100* 27.7 22.4 124 OWL CREEK 8975 .2 .0 * 15.9 14.2 112 POWDER RIVER PASS 9480 .2 .0 * 31.9 22.2 144 SHELL CREEK 9580 .0 .0 100* 27.2 24.6 111 SYLVAN LAKE 8420 .0 .0 100* 47.1 31.7 149 SYLVAN ROAD 8120 .3 .0 * 36.2 26.9 135 TIMBER CREEK 7950 .2 .0 * 19.4 17.3 112 YOUNTS PEAK 8350 .4 .0 * 37.5 26.6 141 ----- ----- Basin wide percent of average 150* 129 SHOSHONE RIVER BLACKWATER 9780 .2 .1 200* 42.0 30.3 139 EVENING STAR 9200 .1 .1 100* 54.2 37.1 146 KIRWIN 9550 .2 .0 * 28.7 21.2 135 MARQUETTE 8760 .0 .0 100* 25.7 21.7 118 SYLVAN LAKE 8420 .0 .0 100* 47.1 31.7 149 SYLVAN ROAD 8120 .3 .0 * 36.2 26.9 135 YOUNTS PEAK 8350 .4 .0 * 37.5 26.6 141 ----- ----- Basin wide percent of average 150* 139 POWDER-TONGUE BEAR TRAP MEADOW 7900 .1 .0 * 21.4 17.5 122 BONE SPRINGS DIV 9350 .1 .0 * 31.1 27.0 115 BURGESS JUNCTION 7880 .1 .0 * 26.5 21.8 122 CLOUD PEAK RESERVOIR 9860 .2 .0 * 31.3 26.1 120 DOME LAKE 8880 .1 .0 * 29.6 24.1 123 GRAVE SPRINGS 8550 .1 -M * 21.8 20.5 106 HANSEN SAWMILL 8760 .0 .0 100* 23.0 17.2 134 LOST CREEK 8080 -M .0 * -M 22.8 * MIDDLE POWDER 7760 .0 .0 100* 27.7 22.4 124 POWDER RIVER PASS 9480 .2 .0 * 31.9 22.2 144 SUCKER CREEK 8880 .0 .0 100* 30.5 25.1 122 TIE CREEK 6870 .1 -M * 30.6 20.9 146 ----- ----- Basin wide percent of average * 125 BELLE FOURCHE BLIND PARK 6890 .5 .0 * 28.6 24.1 119 NORTH RAPID CREEK 6130 .2 -M * 30.9 -M * WARREN PEAK 6520 .2 .0 * 33.0 18.3 180 ----- ----- Basin wide percent of average * 145 UPPER N. PLATTE RIVER COLUMBINE 9400 .0 .0 100* 43.8 33.7 130 DIVIDE PEAK 8800 .0 .0 100* 34.0 33.4 102 ELK RIVER 8700 .1 .0 * 35.2 27.5 128 JOE WRIGHT 10120 .0 .0 100* 44.1 40.0 110 NORTH FRENCH CREEK 10100 .0 .0 100* 42.1 35.9 117 OLD BATTLE 10000 .0 .0 100* 51.4 43.4 118 SOUTH BRUSH CREEK 8400 .0 .0 100* 26.8 27.2 99 TOWER 10500 1.6 .0 * 66.2 53.3 124 WEBBER SPRINGS 9200 .0 .0 100* 45.1 37.1 122 WILLOW CREEK PASS 9540 .2 .0 * 25.4 21.9 116 ----- ----- Basin wide percent of average * 117 LOWER N. PLATTE - SWEETWATER - LARAMIE BROOKLYN LAKE 10240 .0 .0 100* 39.4 30.4 130 CASPER MTN. 7900 .0 .0 100* 30.8 26.8 115 CHRISTINA LAKE 9980 .0 .0 100* 31.5 27.4 115 DEADMAN HILL 10220 .0 .0 100* 29.0 28.7 101 LAPRELE CREEK 8320 .0 .0 100* 22.5 22.0 102 RENO HILL 8400 .0 .0 100* 30.9 28.2 110 ROACH 9700 .0 .0 100* 31.6 34.0 93 SAND LAKE 10080 .0 .0 100* 42.5 31.9 133 SOUTH PASS 9040 .2 .0 * 31.4 27.7 113 WINDY PEAK 7840 .0 .0 100* 19.2 19.7 97 ----- ----- Basin wide percent of average * 112 LITTLE SNAKE RIVER BATTLE MOUNTAIN 7440 .5 .0 * 17.5 22.7 77 DIVIDE PEAK 8800 .0 .0 100* 34.0 33.4 102 OLD BATTLE 10000 .0 .0 100* 51.4 43.4 118 SANDSTONE RS 8150 .0 .0 100* 29.3 28.4 103 WHISKEY PARK 8950 .0 .0 100* 47.1 41.2 114 ----- ----- Basin wide percent of average * 106 UPPER GREEN RIVER BIG SANDY OPENING 9100 .0 .0 100* 23.1 23.3 99 BLIND BULL SUM 8650 .0 .0 100* 45.2 32.0 141 EAST RIM DIVIDE 7930 .0 .0 100* 24.7 21.7 114 ELKHART PARK G.S. 9400 .0 .0 100* 27.2 22.9 119 GROS VENTRE SUMMIT 8775 .0 .0 100* 29.7 22.8 130 KENDALL R.S. 7740 .1 .0 * 32.3 22.2 145 LOOMIS PARK 8240 .0 .0 100* 36.7 27.0 136 NEW FORK LAKE 8340 .0 .0 100* 21.3 20.7 103 SNIDER BASIN 8250 .0 .0 100* 24.4 21.7 112 SPRING CREEK DIVIDE 9000 .1 .0 * 43.0 36.8 117 TRIPLE PEAK 8500 .0 .0 100* 51.6 42.7 121 ----- ----- Basin wide percent of average * 122 LOWER GREEN RIVER HAMS FORK 7840 .0 .0 100* 22.4 19.1 117 HEWINTA 9500 .0 .0 100* 22.3 22.5 99 HICKERSON PARK 9150 .0 .0 100* 16.9 18.7 90 HOLE-IN-ROCK 9150 .0 .0 100* 17.6 18.7 94 INDIAN CREEK 9425 .0 .0 100* 40.9 35.5 115 KELLEY R.S. 8180 .0 .0 100* 38.9 26.9 145 STEEL CREEK PARK 10100 .1 .0 * 24.0 25.6 94 ----- ----- Basin wide percent of average * 110 UPPER BEAR RIVER BUG LAKE 7950 .1 .0 * 39.6 26.9 147 HAYDEN FORK 9400 .0 .0 100* 34.3 29.9 115 KELLEY R.S. 8180 .0 .0 100* 38.9 26.9 145 LILY LAKE 9050 .0 .0 100* 28.2 24.4 116 MONTE CRISTO 8960 .2 .0 * 45.2 36.5 124 SALT RIVER SUMMIT 7600 .0 .0 100* 33.5 24.2 138 TRIAL LAKE 9960 -M .0 * 44.2 35.2 126 ----- ----- Basin wide percent of average * 129 ----------------------------------------------------------------------------- -M = Missing data * = Data may not provide a valid measure of conditions. 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 1961-90. 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.