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 SATURDAY: JULY 19 , 1997 ----------------------------------------------------------------------------- BASIN ELEV. SNOW WATER EQUIVALENT TOTAL PRECIPITATION Data Site Name (Ft) % % Current Average Avg Current Average Avg ----------------------------------------------------------------------------- WYOMING SNAKE RIVER BASE CAMP 7030 -M .0 * 46.5 30.4 153 COTTONWOOD CREEK 7600 .0 .0 100* 47.5 33.8 141 GRANITE CREEK 6770 .0 .0 100* 41.0 33.1 124 GRASSY LAKE 7265 .0 .0 100* 70.8 50.3 141 GROS VENTRE SUMMIT 8775 .0 .0 100* 28.9 22.5 128 LEWIS LAKE DIVIDE 7860 .3 .0 * 71.0 51.1 139 PHILLIPS BENCH 8200 .7 .0 * 59.2 40.2 147 SALT RIVER SUMMIT 7600 .0 .0 100* 33.3 23.8 140 SNAKE RIVER STATION 6920 .0 .0 100* 48.0 35.3 136 SPRING CREEK DIVIDE 9000 .1 .0 * 42.9 36.4 118 THUMB DIVIDE 7980 .0 .0 100* 44.3 28.5 155 TOGWOTEE PASS 9580 1.5 .0 * 46.3 38.3 121 TWO OCEAN PLATEAU 9360 -M .0 * 57.8 41.8 138 WILLOW CREEK 8450 .0 .0 100* 64.8 43.3 150 ----- ----- Basin wide percent of average * 138 UPPER YELLOWSTONE-MADISON BEARTOOTH LAKE 9275 .3 .0 * 41.9 28.7 146 BLACK BEAR 7950 -M .0 * 83.3 55.6 150 CANYON 7940 .2 .0 * 33.4 22.5 148 FISHER CREEK 9100 .8 .0 * 66.4 52.5 126 MADISON PLATEAU 7750 .0 .0 100* 50.5 37.3 135 NORTHEAST ENTRANCE 7350 .1 .0 * 30.9 20.2 153 PARKER PEAK 9400 .2 .5 40* 34.7 26.0 133 SYLVAN LAKE 8420 .0 .0 100* 46.4 31.0 150 THUMB DIVIDE 7980 .0 .0 100* 44.3 28.5 155 TWO OCEAN PLATEAU 9360 -M .0 * 57.8 41.8 138 WHISKEY CREEK 6800 .3 .0 * 40.1 31.7 126 WHITE MILL 8700 .8 .0 * 45.0 41.2 109 WOLVERINE 7650 .3 .0 * 24.1 21.8 111 ----- ----- Basin wide percent of average 40* 136 WIND RIVER BURROUGHS CREEK 8750 .0 .0 100* 34.2 25.1 136 CHRISTINA LAKE 9980 .0 .0 100* 31.5 26.9 117 COLD SPRINGS 9630 .2 .0 * 22.1 19.1 116 HOBBS PARK 10100 .0 .0 100* 22.9 24.1 95 LITTLE WARM 9620 .4 .0 * 29.9 22.4 133 SOUTH PASS 9040 .3 .0 * 31.6 27.3 116 ST. LAWRENCE ALT 8620 .0 .0 100* 20.2 17.7 114 TOGWOTEE PASS 9580 1.5 .0 * 46.3 38.3 121 TOWNSEND CREEK 8700 .1 .0 * 22.3 21.7 103 ----- ----- Basin wide percent of average * 117 BIGHORN BASIN BALD MTN. 9375 .2 .0 * 33.0 28.7 115 BEAR TRAP MEADOW 7900 .1 .0 * 20.2 17.2 117 BLACKWATER 9780 .2 .2 100* 41.8 29.6 141 BONE SPRINGS DIV 9350 .2 .0 * 30.0 26.5 113 EVENING STAR 9200 .1 .3 33* 53.9 36.2 149 GRAVE SPRINGS 8550 .1 -M * 19.5 20.1 97 KIRWIN 9550 .2 .0 * 27.3 20.4 134 LOST CREEK 8080 -M .0 * -M 22.4 * MARQUETTE 8760 .0 .0 100* 24.8 21.2 117 MIDDLE POWDER 7760 .0 .0 100* 26.5 22.0 120 OWL CREEK 8975 .2 .0 * 15.1 13.7 110 POWDER RIVER PASS 9480 .2 .0 * 30.0 21.8 138 SHELL CREEK 9580 .1 .0 * 25.5 24.2 105 SYLVAN LAKE 8420 .0 .0 100* 46.4 31.0 150 SYLVAN ROAD 8120 .3 .0 * 36.0 26.3 137 TIMBER CREEK 7950 .2 .0 * 18.2 16.9 108 YOUNTS PEAK 8350 .5 .0 * 37.0 26.0 142 ----- ----- Basin wide percent of average 60* 127 SHOSHONE RIVER BLACKWATER 9780 .2 .2 100* 41.8 29.6 141 EVENING STAR 9200 .1 .3 33* 53.9 36.2 149 KIRWIN 9550 .2 .0 * 27.3 20.4 134 MARQUETTE 8760 .0 .0 100* 24.8 21.2 117 SYLVAN LAKE 8420 .0 .0 100* 46.4 31.0 150 SYLVAN ROAD 8120 .3 .0 * 36.0 26.3 137 YOUNTS PEAK 8350 .5 .0 * 37.0 26.0 142 ----- ----- Basin wide percent of average 60* 140 POWDER-TONGUE BEAR TRAP MEADOW 7900 .1 .0 * 20.2 17.2 117 BONE SPRINGS DIV 9350 .2 .0 * 30.0 26.5 113 BURGESS JUNCTION 7880 .1 .0 * 24.9 21.3 117 CLOUD PEAK RESERVOIR 9860 .2 .0 * 29.6 25.6 116 DOME LAKE 8880 .1 .0 * 27.0 23.7 114 GRAVE SPRINGS 8550 .1 -M * 19.5 20.1 97 HANSEN SAWMILL 8760 .0 .0 100* 21.3 16.8 127 LOST CREEK 8080 -M .0 * -M 22.4 * MIDDLE POWDER 7760 .0 .0 100* 26.5 22.0 120 POWDER RIVER PASS 9480 .2 .0 * 30.0 21.8 138 SUCKER CREEK 8880 .1 .0 * 29.7 24.6 121 TIE CREEK 6870 .1 -M * 28.5 20.4 140 ----- ----- Basin wide percent of average * 120 BELLE FOURCHE BLIND PARK 6890 .4 .0 * 27.0 23.5 115 NORTH RAPID CREEK 6130 .1 -M * 26.8 -M * WARREN PEAK 6520 .2 .0 * 32.0 17.8 180 ----- ----- Basin wide percent of average * 143 UPPER N. PLATTE RIVER COLUMBINE 9400 .0 .0 100* 43.6 33.3 131 DIVIDE PEAK 8800 .0 .0 100* 33.3 33.0 101 ELK RIVER 8700 .1 .0 * 34.7 27.1 128 JOE WRIGHT 10120 .0 .0 100* 44.1 39.2 112 NORTH FRENCH CREEK 10100 .0 .0 100* 41.4 35.4 117 OLD BATTLE 10000 .0 .0 100* 51.3 42.9 120 SOUTH BRUSH CREEK 8400 .0 .0 100* 26.0 26.8 97 TOWER 10500 1.4 .0 * 66.2 52.8 125 WEBBER SPRINGS 9200 .0 .0 100* 45.0 36.7 123 WILLOW CREEK PASS 9540 .2 .0 * 24.8 21.4 116 ----- ----- Basin wide percent of average * 118 LOWER N. PLATTE - SWEETWATER - LARAMIE BROOKLYN LAKE 10240 .0 .0 100* 39.2 29.9 131 CASPER MTN. 7900 .0 .0 100* 30.7 26.4 116 CHRISTINA LAKE 9980 .0 .0 100* 31.5 26.9 117 DEADMAN HILL 10220 .3 .0 * 28.8 28.1 102 LAPRELE CREEK 8320 .2 .0 * 22.3 21.5 104 RENO HILL 8400 .1 .0 * 30.9 27.8 111 ROACH 9700 .0 .0 100* 31.5 33.5 94 SAND LAKE 10080 .0 .0 100* 42.0 31.6 133 SOUTH PASS 9040 .3 .0 * 31.6 27.3 116 WINDY PEAK 7840 .1 .0 * 18.6 19.2 97 ----- ----- Basin wide percent of average * 113 LITTLE SNAKE RIVER BATTLE MOUNTAIN 7440 .5 .0 * 17.5 22.4 78 DIVIDE PEAK 8800 .0 .0 100* 33.3 33.0 101 OLD BATTLE 10000 .0 .0 100* 51.3 42.9 120 SANDSTONE RS 8150 .0 .0 100* 29.2 28.0 104 WHISKEY PARK 8950 .0 .0 100* 46.6 40.7 114 ----- ----- Basin wide percent of average * 107 UPPER GREEN RIVER BIG SANDY OPENING 9100 .0 .0 100* 22.8 22.9 100 BLIND BULL SUM 8650 .0 .0 100* 44.2 31.7 139 EAST RIM DIVIDE 7930 .0 .0 100* 24.2 21.4 113 ELKHART PARK G.S. 9400 .0 .0 100* 27.0 22.6 119 GROS VENTRE SUMMIT 8775 .0 .0 100* 28.9 22.5 128 KENDALL R.S. 7740 .2 .0 * 31.4 21.9 143 LOOMIS PARK 8240 .0 .0 100* 36.5 26.6 137 NEW FORK LAKE 8340 .0 .0 100* 20.2 20.4 99 SNIDER BASIN 8250 .0 .0 100* 24.2 21.4 113 SPRING CREEK DIVIDE 9000 .1 .0 * 42.9 36.4 118 TRIPLE PEAK 8500 .0 .0 100* 50.2 42.2 119 ----- ----- Basin wide percent of average * 122 LOWER GREEN RIVER HAMS FORK 7840 .0 .0 100* 22.2 18.8 118 HEWINTA 9500 .0 .0 100* 22.1 22.0 100 HICKERSON PARK 9150 .0 .0 100* 16.1 18.2 88 HOLE-IN-ROCK 9150 .0 .0 100* 17.1 18.2 94 INDIAN CREEK 9425 .0 .0 100* 40.7 35.1 116 KELLEY R.S. 8180 .1 .0 * 38.7 26.5 146 STEEL CREEK PARK 10100 .1 .0 * 23.1 24.9 93 ----- ----- Basin wide percent of average * 110 UPPER BEAR RIVER BUG LAKE 7950 -M .0 * 39.4 26.7 148 HAYDEN FORK 9400 .0 .0 100* 32.8 29.4 112 KELLEY R.S. 8180 .1 .0 * 38.7 26.5 146 LILY LAKE 9050 .0 .0 100* 27.6 24.0 115 MONTE CRISTO 8960 -M .0 * -M 36.3 * SALT RIVER SUMMIT 7600 .0 .0 100* 33.3 23.8 140 TRIAL LAKE 9960 .0 .0 100* 43.6 34.7 126 ----- ----- Basin wide percent of average * 130 ----------------------------------------------------------------------------- -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.