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 WEDNESDAY: AUGUST 12 , 1998 ----------------------------------------------------------------------------- BASIN ELEV. SNOW WATER EQUIVALENT TOTAL PRECIPITATION Data Site Name (Ft) % % Current Average Avg Current Average Avg ----------------------------------------------------------------------------- WYOMING SNAKE RIVER BASE CAMP 7030 .0 .0 100* 30.9 31.4 98 COTTONWOOD CREEK 7600 .0 .0 100* 36.3 34.9 104 GRANITE CREEK 6770 .1 .0 * 30.6 34.6 88 GRASSY LAKE 7265 .0 .0 100* 51.0 51.9 98 GROS VENTRE SUMMIT 8775 .0 .0 100* 25.4 23.5 108 LEWIS LAKE DIVIDE 7860 .0 .0 100* 44.8 52.8 85 PHILLIPS BENCH 8200 .0 .0 100* 37.9 41.6 91 SALT RIVER SUMMIT 7600 .1 .0 * 31.3 24.9 126 SNAKE RIVER STATION 6920 .0 .0 100* 35.2 36.4 97 SPRING CREEK DIVIDE 9000 .0 .0 100* 33.7 37.5 90 THUMB DIVIDE 7980 -M .0 * 30.1 29.4 102 TOGWOTEE PASS 9580 .0 .0 100* 36.6 39.6 92 TWO OCEAN PLATEAU 9360 .1 .0 * 41.9 43.3 97 WILLOW CREEK 8450 .0 .0 100* 48.4 44.7 108 ----- ----- Basin wide percent of average * 98 UPPER YELLOWSTONE-MADISON BEARTOOTH LAKE 9275 .0 .0 100* -M 30.2 * BLACK BEAR 7950 .0 .0 100* 51.8 57.3 90 CANYON 7940 .0 .0 100* 24.4 24.0 102 FISHER CREEK 9100 -M .0 * -M 54.6 * MADISON PLATEAU 7750 .1 .0 * 38.1 38.8 98 NORTHEAST ENTRANCE 7350 -M .0 * -M 21.8 * PARKER PEAK 9400 .0 .0 100* 28.4 27.8 102 SYLVAN LAKE 8420 .1 .0 * 34.3 33.0 104 THUMB DIVIDE 7980 -M .0 * 30.1 29.4 102 TWO OCEAN PLATEAU 9360 .1 .0 * 41.9 43.3 97 WHISKEY CREEK 6800 .0 .0 100* 34.3 33.2 103 WHITE MILL 8700 -M .0 * -M 43.0 * WOLVERINE 7650 -M .0 * -M 23.4 * ----- ----- Basin wide percent of average * 99 WIND RIVER BURROUGHS CREEK 8750 .2 .0 * 29.7 26.4 113 COLD SPRINGS 9630 .2 .0 * 24.3 20.3 120 DEER PARK 9700 -M -M * 36.1 -M * HOBBS PARK 10100 .0 .0 100* 22.1 25.5 87 LITTLE WARM 9620 .0 .0 100* 24.3 23.8 102 SOUTH PASS 9040 .0 .0 100* 31.1 28.4 110 ST. LAWRENCE ALT 8620 .3 .0 * 22.4 18.7 120 TOGWOTEE PASS 9580 .0 .0 100* 36.6 39.6 92 TOWNSEND CREEK 8700 .1 .0 * 27.3 22.7 120 ----- ----- Basin wide percent of average * 106 BIGHORN BASIN BALD MTN. 9375 .0 .0 100* 31.6 29.9 106 BEAR TRAP MEADOW 7900 .0 .0 100* 19.8 18.1 109 BLACKWATER 9780 .0 .0 100* 32.1 32.0 100 BONE SPRINGS DIV 9350 .0 .0 100* 28.9 28.1 103 EVENING STAR 9200 .1 .0 * -M 38.9 * GRAVE SPRINGS 8550 .1 -M * 23.8 21.2 112 KIRWIN 9550 -M .0 * 26.6 22.4 119 MARQUETTE 8760 .0 .0 100* 28.3 22.7 125 MIDDLE POWDER 7760 .1 .0 * 25.2 23.1 109 OWL CREEK 8975 .1 .0 * 18.6 14.9 125 POWDER RIVER PASS 9480 .1 .0 * 24.7 22.9 108 SHELL CREEK 9580 .0 .0 100* 20.6 25.4 81 SYLVAN LAKE 8420 .1 .0 * 34.3 33.0 104 SYLVAN ROAD 8120 .1 .0 * 23.5 28.2 83 TIMBER CREEK 7950 .0 .0 100* 20.5 18.2 113 YOUNTS PEAK 8350 .0 .0 100* 26.2 27.6 95 ----- ----- Basin wide percent of average * 105 SHOSHONE RIVER BLACKWATER 9780 .0 .0 100* 32.1 32.0 100 EVENING STAR 9200 .1 .0 * -M 38.9 * KIRWIN 9550 -M .0 * 26.6 22.4 119 MARQUETTE 8760 .0 .0 100* 28.3 22.7 125 SYLVAN LAKE 8420 .1 .0 * 34.3 33.0 104 SYLVAN ROAD 8120 .1 .0 * 23.5 28.2 83 YOUNTS PEAK 8350 .0 .0 100* 26.2 27.6 95 ----- ----- Basin wide percent of average * 103 POWDER-TONGUE BEAR TRAP MEADOW 7900 .0 .0 100* 19.8 18.1 109 BONE SPRINGS DIV 9350 .0 .0 100* 28.9 28.1 103 BURGESS JUNCTION 7880 .0 .0 100* 23.5 22.5 104 CLOUD PEAK RESERVOIR 9860 .0 .0 100* 23.1 26.9 86 DOME LAKE 8880 .0 .0 100* 21.6 24.9 87 GRAVE SPRINGS 8550 .1 -M * 23.8 21.2 112 HANSEN SAWMILL 8760 .0 .0 100* 22.6 17.9 126 MIDDLE POWDER 7760 .1 .0 * 25.2 23.1 109 POWDER RIVER PASS 9480 .1 .0 * 24.7 22.9 108 SUCKER CREEK 8880 .0 .0 100* 27.0 25.9 104 TIE CREEK 6870 .0 -M * -M 21.6 * ----- ----- Basin wide percent of average * 104 BELLE FOURCHE BLIND PARK 6890 .0 .0 100* 26.9 25.2 107 NORTH RAPID CREEK 6130 .0 -M * 33.2 -M * WARREN PEAK 6520 .0 .0 100* 23.8 19.2 124 ----- ----- Basin wide percent of average * 114 UPPER N. PLATTE RIVER COLUMBINE 9400 .0 .0 100* 33.2 34.6 96 DIVIDE PEAK 8800 .0 .0 100* 31.3 34.2 92 ELK RIVER 8700 .0 .0 100* 30.9 28.2 110 JOE WRIGHT 10120 .0 .0 100* 39.2 41.4 95 NORTH FRENCH CREEK 10100 -M .0 * 44.5 36.8 121 OLD BATTLE 10000 .0 .0 100* 50.0 44.3 113 SOUTH BRUSH CREEK 8400 .0 .0 100* 23.2 28.0 83 TOWER 10500 .0 .0 100* 57.0 54.5 105 WEBBER SPRINGS 9200 .0 .0 100* 38.0 37.9 100 WILLOW CREEK PASS 9540 .0 .0 100* 18.6 22.9 81 ----- ----- Basin wide percent of average * 101 LOWER N. PLATTE - SWEETWATER - LARAMIE BROOKLYN LAKE 10240 .1 .0 * 33.2 31.3 106 CASPER MTN. 7900 .0 .0 100* 21.9 27.5 80 DEADMAN HILL 10220 .0 .0 100* 25.7 29.7 87 DEER PARK 9700 -M -M * 36.1 -M * LAPRELE CREEK 8320 .0 .0 100* 19.5 22.8 86 RENO HILL 8400 .0 .0 100* 19.9 28.8 69 ROACH 9700 .0 .0 100* 28.0 34.9 80 SAND LAKE 10080 .0 .0 100* 36.8 32.5 113 SOUTH PASS 9040 .0 .0 100* 31.1 28.4 110 WINDY PEAK 7840 .0 .0 100* 18.2 20.3 90 ----- ----- Basin wide percent of average * 91 LITTLE SNAKE RIVER BATTLE MOUNTAIN 7440 .1 .0 * 25.1 23.3 108 DIVIDE PEAK 8800 .0 .0 100* 31.3 34.2 92 OLD BATTLE 10000 .0 .0 100* 50.0 44.3 113 SANDSTONE RS 8150 .1 .0 * 29.5 29.5 100 WHISKEY PARK 8950 .0 .0 100* 44.2 42.0 105 ----- ----- Basin wide percent of average * 104 UPPER GREEN RIVER BIG SANDY OPENING 9100 .0 .0 100* 25.1 24.0 105 BLIND BULL SUM 8650 .0 .0 100* 29.7 32.7 91 EAST RIM DIVIDE 7930 .0 .0 100* 20.6 22.4 92 ELKHART PARK G.S. 9400 .0 .0 100* 25.1 23.6 106 GROS VENTRE SUMMIT 8775 .0 .0 100* 25.4 23.5 108 KENDALL R.S. 7740 .0 .0 100* 23.4 22.9 102 LOOMIS PARK 8240 .0 .0 100* 28.3 27.7 102 NEW FORK LAKE 8340 .0 .0 100* 22.4 21.3 105 SNIDER BASIN 8250 .0 .0 100* 20.5 22.4 92 SPRING CREEK DIVIDE 9000 .0 .0 100* 33.7 37.5 90 TRIPLE PEAK 8500 .0 .0 100* 33.9 43.7 78 ----- ----- Basin wide percent of average * 95 LOWER GREEN RIVER HAMS FORK 7840 .0 .0 100* 21.3 19.7 108 HEWINTA 9500 .0 .0 100* 20.5 23.3 88 HICKERSON PARK 9150 .0 .0 100* 26.0 19.5 133 HOLE-IN-ROCK 9150 .0 .0 100* 24.3 19.5 125 INDIAN CREEK 9425 .1 .0 * 32.3 36.2 89 KELLEY R.S. 8180 .0 .0 100* 28.9 27.6 105 STEEL CREEK PARK 10100 .0 .0 100* 30.6 26.9 114 ----- ----- Basin wide percent of average * 106 UPPER BEAR RIVER BUG LAKE 7950 .0 .0 100* 33.2 27.4 121 HAYDEN FORK 9400 -M .0 * -M 30.7 * KELLEY R.S. 8180 .0 .0 100* 28.9 27.6 105 LILY LAKE 9050 -M .0 * 30.4 25.1 121 MONTE CRISTO 8960 .2 .0 * 42.4 37.2 114 SALT RIVER SUMMIT 7600 .1 .0 * 31.3 24.9 126 TRIAL LAKE 9960 .1 .0 * 38.0 36.2 105 ----- ----- Basin wide percent of average * 114 ----------------------------------------------------------------------------- -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.