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: AUGUST 1 , 1999 ----------------------------------------------------------------------------- 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* 35.3 30.9 114 COTTONWOOD CREEK 7600 .2 .0 * 42.3 34.4 123 GRANITE CREEK 6770 .3 .0 * 32.2 33.9 95 GRASSY LAKE 7265 .0 .0 100* 57.7 51.3 113 GROS VENTRE SUMMIT 8775 .0 .0 100* 24.2 23.0 105 LEWIS LAKE DIVIDE 7860 .0 .0 100* 52.2 52.0 101 PHILLIPS BENCH 8200 .3 .0 * 42.8 41.0 105 SALT RIVER SUMMIT 7600 .0 .0 100* 27.9 24.4 114 SNAKE RIVER STATION 6920 .0 .0 100* 36.7 35.9 102 SPRING CREEK DIVIDE 9000 .0 .0 100* 40.9 37.0 111 THUMB DIVIDE 7980 .0 .0 100* 32.7 29.0 113 TOGWOTEE PASS 9580 .0 .0 100* 40.3 39.0 104 TWO OCEAN PLATEAU 9360 .0 .0 100* 43.9 42.8 103 WILLOW CREEK 8450 .0 .0 100* 55.3 44.3 125 ----- ----- Basin wide percent of average * 109 UPPER YELLOWSTONE-MADISON BEARTOOTH LAKE 9275 .0 .0 100* 33.8 29.7 114 BLACK BEAR 7950 .0 .0 100* 65.8 56.5 117 CANYON 7940 .0 .0 100* 27.7 23.4 118 FISHER CREEK 9100 .0 .0 100* 50.8 53.8 95 MADISON PLATEAU 7750 -M .0 * 43.0 38.0 114 NORTHEAST ENTRANCE 7350 .0 .0 100* 22.0 21.2 104 PARKER PEAK 9400 .2 .0 * 31.7 27.0 118 SYLVAN LAKE 8420 -M .0 * -M 32.3 * THUMB DIVIDE 7980 .0 .0 100* 32.7 29.0 113 TWO OCEAN PLATEAU 9360 .0 .0 100* 43.9 42.8 103 WHISKEY CREEK 6800 .0 .0 100* 35.3 32.5 109 WHITE MILL 8700 -M .0 * -M 42.3 * WOLVERINE 7650 .0 .0 100* 19.9 22.9 87 ----- ----- Basin wide percent of average * 108 WIND RIVER BURROUGHS CREEK 8750 .3 .0 * 28.7 25.9 111 COLD SPRINGS 9630 .0 .0 100* 27.7 19.9 139 DEER PARK 9700 .2 -M * 38.9 -M * HOBBS PARK 10100 .0 .0 100* 32.5 24.9 131 LITTLE WARM 9620 .2 .0 * 29.7 23.2 129 SOUTH PASS 9040 -M .0 * -M 28.0 * ST. LAWRENCE ALT 8620 .2 .0 * 24.4 18.4 133 TOGWOTEE PASS 9580 .0 .0 100* 40.3 39.0 104 TOWNSEND CREEK 8700 .2 .0 * 29.7 22.4 133 ----- ----- Basin wide percent of average * 123 BIGHORN BASIN BALD MTN. 9375 .0 .0 100* 30.2 29.5 103 BEAR TRAP MEADOW 7900 .0 .0 100* -M 17.7 * BLACKWATER 9780 .0 .0 100* 36.5 30.9 119 BONE SPRINGS DIV 9350 .0 .0 100* 30.4 27.4 111 EVENING STAR 9200 .0 .0 100* 47.8 37.8 127 GRAVE SPRINGS 8550 .2 .0 * 22.0 20.7 107 KIRWIN 9550 .2 .0 * 26.2 21.7 121 MARQUETTE 8760 .0 .0 100* 25.7 22.2 116 MIDDLE POWDER 7760 .2 .0 * 28.9 22.7 127 OWL CREEK 8975 .0 .0 100* 20.4 14.5 141 POWDER RIVER PASS 9480 .0 .0 100* 26.7 22.4 120 SHELL CREEK 9580 .0 .0 100* 26.7 24.9 108 SYLVAN LAKE 8420 -M .0 * -M 32.3 * SYLVAN ROAD 8120 -M .0 * -M 27.4 * TIMBER CREEK 7950 .2 .0 * 20.7 17.7 117 YOUNTS PEAK 8350 .0 .0 100* 28.7 26.9 107 ----- ----- Basin wide percent of average * 117 SHOSHONE RIVER BLACKWATER 9780 .0 .0 100* 36.5 30.9 119 EVENING STAR 9200 .0 .0 100* 47.8 37.8 127 KIRWIN 9550 .2 .0 * 26.2 21.7 121 MARQUETTE 8760 .0 .0 100* 25.7 22.2 116 SYLVAN LAKE 8420 -M .0 * -M 32.3 * SYLVAN ROAD 8120 -M .0 * -M 27.4 * YOUNTS PEAK 8350 .0 .0 100* 28.7 26.9 107 ----- ----- Basin wide percent of average * 119 POWDER-TONGUE BEAR TRAP MEADOW 7900 .0 .0 100* -M 17.7 * BIG GOOSE 7990 .0 -M * 22.5 -M * BONE SPRINGS DIV 9350 .0 .0 100* 30.4 27.4 111 BURGESS JUNCTION 7880 .2 .0 * 21.7 22.2 98 CLOUD PEAK RESERVOIR 9860 .0 .0 100* 29.2 26.4 111 DOME LAKE 8880 .0 .0 100* 21.4 24.4 88 GRAVE SPRINGS 8550 .2 .0 * 22.0 20.7 107 HANSEN SAWMILL 8760 .3 .0 * 20.4 17.4 117 MIDDLE POWDER 7760 .2 .0 * 28.9 22.7 127 POWDER RIVER PASS 9480 .0 .0 100* 26.7 22.4 120 SUCKER CREEK 8880 .6 .0 * 27.5 25.4 109 TIE CREEK 6870 .3 -M * 23.9 21.2 113 ----- ----- Basin wide percent of average * 110 BELLE FOURCHE BLIND PARK 6890 .3 .0 * 30.0 24.5 123 NORTH RAPID CREEK 6130 .2 -M * 28.2 -M * WARREN PEAK 6520 .0 .0 100* 29.0 18.7 156 ----- ----- Basin wide percent of average * 137 UPPER N. PLATTE RIVER COLUMBINE 9400 .2 .0 * 34.5 34.0 102 DIVIDE PEAK 8800 .2 .0 * 37.7 33.8 112 ELK RIVER 8700 .0 .0 100* 33.7 27.7 122 JOE WRIGHT 10120 .0 .0 100* 41.4 40.5 103 NORTH FRENCH CREEK 10100 .0 .0 100* 42.5 36.3 118 OLD BATTLE 10000 .0 .0 100* 54.8 43.8 126 SOUTH BRUSH CREEK 8400 5.8 .0 * 41.5 27.5 151 TOWER 10500 .0 .0 100* 56.8 53.8 106 WEBBER SPRINGS 9200 .2 .0 * 40.8 37.4 110 WILLOW CREEK PASS 9540 .2 .0 * 21.2 22.2 96 ----- ----- Basin wide percent of average * 114 LOWER N. PLATTE - SWEETWATER - LARAMIE BROOKLYN LAKE 10240 -M .0 * 36.8 30.7 120 CASPER MTN. 7900 .2 .0 * 28.2 27.2 104 DEADMAN HILL 10220 .0 .0 100* 29.0 29.2 100 DEER PARK 9700 .2 -M * 38.9 -M * LAPRELE CREEK 8320 .5 .0 * 27.4 22.4 122 RENO HILL 8400 .2 .0 * 31.4 28.5 111 ROACH 9700 .0 .0 100* 31.7 34.4 93 SAND LAKE 10080 .0 .0 100* 46.2 32.3 144 SOUTH PASS 9040 -M .0 * -M 28.0 * WINDY PEAK 7840 .2 .0 * 24.4 20.0 122 ----- ----- Basin wide percent of average * 114 LITTLE SNAKE RIVER BATTLE MOUNTAIN 7440 .0 .0 100* 26.0 22.9 114 DIVIDE PEAK 8800 .2 .0 * 37.7 33.8 112 OLD BATTLE 10000 .0 .0 100* 54.8 43.8 126 SANDSTONE RS 8150 .0 .0 100* 30.5 28.7 107 WHISKEY PARK 8950 .0 .0 100* 43.9 41.5 106 ----- ----- Basin wide percent of average * 114 UPPER GREEN RIVER BIG SANDY OPENING 9100 .0 .0 100* 23.7 23.5 101 BLIND BULL SUM 8650 .0 .0 100* 33.3 32.3 103 EAST RIM DIVIDE 7930 .0 .0 100* 21.5 21.9 99 ELKHART PARK G.S. 9400 .3 .0 * 25.2 23.2 109 GROS VENTRE SUMMIT 8775 .0 .0 100* 24.2 23.0 105 KENDALL R.S. 7740 .0 .0 100* 24.2 22.4 109 LOOMIS PARK 8240 .0 .0 100* 28.9 27.2 107 NEW FORK LAKE 8340 .0 .0 100* 20.9 20.9 100 SNIDER BASIN 8250 .0 .0 100* 26.9 21.9 123 SPRING CREEK DIVIDE 9000 .0 .0 100* 40.9 37.0 111 TRIPLE PEAK 8500 .0 .0 100* 43.2 43.0 101 ----- ----- Basin wide percent of average * 106 LOWER GREEN RIVER HAMS FORK 7840 .0 .0 100* 21.7 19.4 112 HEWINTA 9500 .0 .0 100* 24.5 22.9 107 HICKERSON PARK 9150 .3 .0 * 19.2 19.0 102 HOLE-IN-ROCK 9150 .0 .0 100* 20.0 19.0 106 INDIAN CREEK 9425 .0 .0 100* 38.8 35.8 109 KELLEY R.S. 8180 .0 .0 100* 28.9 27.2 107 STEEL CREEK PARK 10100 .0 .0 100* 30.4 26.2 117 ----- ----- Basin wide percent of average * 109 UPPER BEAR RIVER BUG LAKE 7950 .0 .0 100* 32.5 27.0 121 HAYDEN FORK 9400 .0 .0 100* 33.8 30.2 112 KELLEY R.S. 8180 .0 .0 100* 28.9 27.2 107 LILY LAKE 9050 .2 .0 * 30.2 24.7 122 MONTE CRISTO 8960 .0 .0 100* 42.9 36.8 117 SALT RIVER SUMMIT 7600 .0 .0 100* 27.9 24.4 114 TRIAL LAKE 9960 .0 .0 100* 36.5 35.5 103 ----- ----- Basin wide percent of average * 113 ----------------------------------------------------------------------------- -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.