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: JULY 22 , 1997 ----------------------------------------------------------------------------- BASIN ELEV. SNOW WATER EQUIVALENT TOTAL PRECIPITATION Data Site Name (Ft) % % Current Average Avg Current Average Avg ----------------------------------------------------------------------------- WYOMING SNAKE RIVER BASE CAMP 7030 .1 .0 * 46.5 30.5 152 COTTONWOOD CREEK 7600 .0 .0 100* 47.6 33.9 140 GRANITE CREEK 6770 .0 .0 100* 41.1 33.3 123 GRASSY LAKE 7265 .0 .0 100* 70.8 50.5 140 GROS VENTRE SUMMIT 8775 .0 .0 100* 29.0 22.6 128 LEWIS LAKE DIVIDE 7860 .2 .0 * 71.2 51.3 139 PHILLIPS BENCH 8200 .7 .0 * 59.4 40.4 147 SALT RIVER SUMMIT 7600 .0 .0 100* 33.3 23.9 139 SNAKE RIVER STATION 6920 .0 .0 100* 48.3 35.4 136 SPRING CREEK DIVIDE 9000 .1 .0 * 42.9 36.5 118 THUMB DIVIDE 7980 .0 .0 100* 44.4 28.6 155 TOGWOTEE PASS 9580 1.5 .0 * 47.2 38.5 123 TWO OCEAN PLATEAU 9360 -M .0 * 57.8 42.0 138 WILLOW CREEK 8450 .0 .0 100* 64.7 43.5 149 ----- ----- Basin wide percent of average * 138 UPPER YELLOWSTONE-MADISON BEARTOOTH LAKE 9275 .2 .0 * 42.0 28.9 145 BLACK BEAR 7950 -M .0 * 83.5 55.8 150 CANYON 7940 .2 .0 * 33.5 22.7 148 FISHER CREEK 9100 -M .0 * 66.7 52.8 126 MADISON PLATEAU 7750 .1 .0 * 50.8 37.5 135 NORTHEAST ENTRANCE 7350 .0 .0 100* 31.0 20.4 152 PARKER PEAK 9400 .1 .4 25* 34.7 26.3 132 SYLVAN LAKE 8420 .0 .0 100* 46.6 31.3 149 THUMB DIVIDE 7980 .0 .0 100* 44.4 28.6 155 TWO OCEAN PLATEAU 9360 -M .0 * 57.8 42.0 138 WHISKEY CREEK 6800 .3 .0 * 40.0 31.9 125 WHITE MILL 8700 -M .0 * 45.3 41.4 109 WOLVERINE 7650 .3 .0 * 24.3 22.1 110 ----- ----- Basin wide percent of average 25* 136 WIND RIVER BURROUGHS CREEK 8750 .0 .0 100* 35.0 25.3 138 CHRISTINA LAKE 9980 .0 .0 100* 31.5 27.1 116 COLD SPRINGS 9630 .1 .0 * 22.2 19.3 115 HOBBS PARK 10100 .0 .0 100* 23.7 24.3 98 LITTLE WARM 9620 .4 .0 * 30.1 22.6 133 SOUTH PASS 9040 .2 .0 * 31.5 27.5 115 ST. LAWRENCE ALT 8620 .0 .0 100* 20.4 17.9 114 TOGWOTEE PASS 9580 1.5 .0 * 47.2 38.5 123 TOWNSEND CREEK 8700 .0 .0 100* 22.3 21.8 102 ----- ----- Basin wide percent of average * 118 BIGHORN BASIN BALD MTN. 9375 .2 .0 * 33.4 28.9 116 BEAR TRAP MEADOW 7900 .1 .0 * 20.9 17.3 121 BLACKWATER 9780 .2 .1 200* 42.1 29.9 141 BONE SPRINGS DIV 9350 .2 .0 * 30.2 26.7 113 EVENING STAR 9200 .1 .2 50* 53.9 36.5 148 GRAVE SPRINGS 8550 .1 -M * 20.7 20.2 102 KIRWIN 9550 .2 .0 * 27.9 20.7 135 LOST CREEK 8080 -M .0 * -M 22.6 * MARQUETTE 8760 -M .0 * 25.2 21.4 118 MIDDLE POWDER 7760 .0 .0 100* 27.6 22.1 125 OWL CREEK 8975 .2 .0 * 15.2 13.9 109 POWDER RIVER PASS 9480 .2 .0 * 31.4 21.9 143 SHELL CREEK 9580 .0 .0 100* 25.7 24.4 105 SYLVAN LAKE 8420 .0 .0 100* 46.6 31.3 149 SYLVAN ROAD 8120 .3 .0 * 35.9 26.5 135 TIMBER CREEK 7950 .2 .0 * 18.8 17.1 110 YOUNTS PEAK 8350 .5 .0 * 37.3 26.2 142 ----- ----- Basin wide percent of average 100* 128 SHOSHONE RIVER BLACKWATER 9780 .2 .1 200* 42.1 29.9 141 EVENING STAR 9200 .1 .2 50* 53.9 36.5 148 KIRWIN 9550 .2 .0 * 27.9 20.7 135 MARQUETTE 8760 -M .0 * 25.2 21.4 118 SYLVAN LAKE 8420 .0 .0 100* 46.6 31.3 149 SYLVAN ROAD 8120 .3 .0 * 35.9 26.5 135 YOUNTS PEAK 8350 .5 .0 * 37.3 26.2 142 ----- ----- Basin wide percent of average 100* 140 POWDER-TONGUE BEAR TRAP MEADOW 7900 .1 .0 * 20.9 17.3 121 BONE SPRINGS DIV 9350 .2 .0 * 30.2 26.7 113 BURGESS JUNCTION 7880 .1 .0 * 25.0 21.5 116 CLOUD PEAK RESERVOIR 9860 .2 .0 * 30.8 25.8 119 DOME LAKE 8880 .1 .0 * 29.0 23.9 121 GRAVE SPRINGS 8550 .1 -M * 20.7 20.2 102 HANSEN SAWMILL 8760 .0 .0 100* 22.5 16.9 133 LOST CREEK 8080 -M .0 * -M 22.6 * MIDDLE POWDER 7760 .0 .0 100* 27.6 22.1 125 POWDER RIVER PASS 9480 .2 .0 * 31.4 21.9 143 SUCKER CREEK 8880 .1 .0 * 30.1 24.8 121 TIE CREEK 6870 .0 -M * 28.9 20.6 140 ----- ----- Basin wide percent of average * 123 BELLE FOURCHE BLIND PARK 6890 .4 .0 * 28.1 23.8 118 NORTH RAPID CREEK 6130 .1 -M * 29.4 -M * WARREN PEAK 6520 .2 .0 * 32.9 18.0 183 ----- ----- Basin wide percent of average * 146 UPPER N. PLATTE RIVER COLUMBINE 9400 .0 .0 100* 43.6 33.5 130 DIVIDE PEAK 8800 .0 .0 100* 33.5 33.1 101 ELK RIVER 8700 .1 .0 * 34.7 27.2 128 JOE WRIGHT 10120 .0 .0 100* 44.1 39.5 112 NORTH FRENCH CREEK 10100 .0 .0 100* 41.9 35.6 118 OLD BATTLE 10000 .0 .0 100* 51.4 43.1 119 SOUTH BRUSH CREEK 8400 .0 .0 100* 26.5 27.0 98 TOWER 10500 1.6 .0 * 66.2 53.0 125 WEBBER SPRINGS 9200 .0 .0 100* 45.2 36.9 122 WILLOW CREEK PASS 9540 .1 .0 * 24.5 21.6 113 ----- ----- Basin wide percent of average * 117 LOWER N. PLATTE - SWEETWATER - LARAMIE BROOKLYN LAKE 10240 .0 .0 100* 39.3 30.1 131 CASPER MTN. 7900 .0 .0 100* 30.8 26.6 116 CHRISTINA LAKE 9980 .0 .0 100* 31.5 27.1 116 DEADMAN HILL 10220 .0 .0 100* 28.8 28.3 102 LAPRELE CREEK 8320 .5 .0 * -M 21.7 * RENO HILL 8400 .1 .0 * 30.7 28.0 110 ROACH 9700 .0 .0 100* 31.5 33.7 93 SAND LAKE 10080 .0 .0 100* 42.4 31.7 134 SOUTH PASS 9040 .2 .0 * 31.5 27.5 115 WINDY PEAK 7840 .1 .0 * 19.2 19.4 99 ----- ----- Basin wide percent of average * 113 LITTLE SNAKE RIVER BATTLE MOUNTAIN 7440 .4 .0 * 17.5 22.5 78 DIVIDE PEAK 8800 .0 .0 100* 33.5 33.1 101 OLD BATTLE 10000 .0 .0 100* 51.4 43.1 119 SANDSTONE RS 8150 .0 .0 100* 29.2 28.2 104 WHISKEY PARK 8950 .0 .0 100* 46.8 40.9 114 ----- ----- Basin wide percent of average * 106 UPPER GREEN RIVER BIG SANDY OPENING 9100 .0 .0 100* 22.9 23.0 100 BLIND BULL SUM 8650 .0 .0 100* 44.6 31.8 140 EAST RIM DIVIDE 7930 .0 .0 100* 24.4 21.5 113 ELKHART PARK G.S. 9400 .0 .0 100* 26.9 22.7 119 GROS VENTRE SUMMIT 8775 .0 .0 100* 29.0 22.6 128 KENDALL R.S. 7740 .1 .0 * 31.9 22.0 145 LOOMIS PARK 8240 .0 .0 100* 36.5 26.7 137 NEW FORK LAKE 8340 .0 .0 100* 20.6 20.5 100 SNIDER BASIN 8250 .0 .0 100* 24.3 21.5 113 SPRING CREEK DIVIDE 9000 .1 .0 * 42.9 36.5 118 TRIPLE PEAK 8500 .0 .0 100* 50.8 42.4 120 ----- ----- Basin wide percent of average * 122 LOWER GREEN RIVER HAMS FORK 7840 .0 .0 100* 22.3 18.9 118 HEWINTA 9500 .0 .0 100* 22.0 22.2 99 HICKERSON PARK 9150 .0 .0 100* 16.4 18.4 89 HOLE-IN-ROCK 9150 .0 .0 100* 17.3 18.4 94 INDIAN CREEK 9425 .0 .0 100* 40.8 35.2 116 KELLEY R.S. 8180 .0 .0 100* 38.8 26.6 146 STEEL CREEK PARK 10100 .1 .0 * 24.4 25.2 97 ----- ----- Basin wide percent of average * 110 UPPER BEAR RIVER BUG LAKE 7950 -M .0 * 39.3 26.8 147 HAYDEN FORK 9400 .0 .0 100* 34.1 29.6 115 KELLEY R.S. 8180 .0 .0 100* 38.8 26.6 146 LILY LAKE 9050 .0 .0 100* 27.9 24.1 116 MONTE CRISTO 8960 .2 .0 * -M 36.4 * SALT RIVER SUMMIT 7600 .0 .0 100* 33.3 23.9 139 TRIAL LAKE 9960 .0 .0 100* 43.6 34.9 125 ----- ----- Basin wide percent of average * 131 ----------------------------------------------------------------------------- -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.