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 MONDAY: JULY 26 , 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* 34.7 30.7 113 COTTONWOOD CREEK 7600 .0 .0 100* 41.3 34.3 121 GRANITE CREEK 6770 .3 .0 * 32.0 33.7 96 GRASSY LAKE 7265 -M .0 * -M 50.8 * GROS VENTRE SUMMIT 8775 .0 .0 100* 23.7 22.9 104 LEWIS LAKE DIVIDE 7860 .0 .0 100* 52.0 51.7 101 PHILLIPS BENCH 8200 .3 .0 * 42.4 40.8 105 SALT RIVER SUMMIT 7600 .0 .0 100* 27.5 24.2 114 SNAKE RIVER STATION 6920 .0 .0 100* 36.3 35.8 102 SPRING CREEK DIVIDE 9000 .0 .0 100* 40.8 36.8 111 THUMB DIVIDE 7980 .0 .0 100* 32.3 28.9 112 TOGWOTEE PASS 9580 -M .0 * -M 38.8 * TWO OCEAN PLATEAU 9360 .0 .0 100* 43.8 42.3 104 WILLOW CREEK 8450 .0 .0 100* 55.2 43.8 126 ----- ----- Basin wide percent of average * 109 UPPER YELLOWSTONE-MADISON BEARTOOTH LAKE 9275 .0 .0 100* 33.5 29.2 115 BLACK BEAR 7950 .0 .0 100* 65.8 56.2 118 CANYON 7940 .0 .0 100* 27.4 23.0 120 FISHER CREEK 9100 .0 .0 100* 50.7 53.3 96 MADISON PLATEAU 7750 -M .0 * 42.8 37.8 114 NORTHEAST ENTRANCE 7350 -M .0 * -M 20.7 * PARKER PEAK 9400 .0 .3 0* 31.4 26.7 118 SYLVAN LAKE 8420 -M .0 * -M 31.7 * THUMB DIVIDE 7980 .0 .0 100* 32.3 28.9 112 TWO OCEAN PLATEAU 9360 .0 .0 100* 43.8 42.3 104 WHISKEY CREEK 6800 -M .0 * -M 32.3 * WHITE MILL 8700 -M .0 * -M 41.8 * WOLVERINE 7650 .0 .0 100* 19.7 22.4 88 ----- ----- Basin wide percent of average 0* 109 WIND RIVER BURROUGHS CREEK 8750 .3 .0 * 28.4 25.5 111 COLD SPRINGS 9630 .0 .0 100* 27.0 19.7 138 DEER PARK 9700 .2 -M * 38.5 -M * HOBBS PARK 10100 .0 .0 100* 32.5 24.7 133 LITTLE WARM 9620 .2 .0 * 29.0 22.9 127 SOUTH PASS 9040 -M .0 * -M 27.7 * ST. LAWRENCE ALT 8620 .2 .0 * 23.9 18.2 133 TOGWOTEE PASS 9580 -M .0 * -M 38.8 * TOWNSEND CREEK 8700 .2 .0 * 29.2 22.2 133 ----- ----- Basin wide percent of average * 128 BIGHORN BASIN BALD MTN. 9375 .0 .0 100* 29.9 29.2 103 BEAR TRAP MEADOW 7900 .0 .0 100* 21.4 17.5 122 BLACKWATER 9780 .0 .2 0* 36.0 30.4 119 BONE SPRINGS DIV 9350 .0 .0 100* 30.2 27.0 112 EVENING STAR 9200 .0 .3 0* 47.5 37.0 129 GRAVE SPRINGS 8550 .2 .0 * 21.9 20.5 107 KIRWIN 9550 -M .0 * -M 21.2 * MARQUETTE 8760 .0 .0 100* 25.5 21.7 118 MIDDLE POWDER 7760 -M .0 * -M 22.4 * OWL CREEK 8975 -M .0 * -M 14.2 * POWDER RIVER PASS 9480 -M .0 * -M 22.2 * SHELL CREEK 9580 .0 .0 100* 26.7 24.7 109 SYLVAN LAKE 8420 -M .0 * -M 31.7 * SYLVAN ROAD 8120 -M .0 * -M 26.9 * TIMBER CREEK 7950 .0 .0 100* 20.7 17.4 120 YOUNTS PEAK 8350 -M .0 * -M 26.5 * ----- ----- Basin wide percent of average 0* 116 SHOSHONE RIVER BLACKWATER 9780 .0 .2 0* 36.0 30.4 119 EVENING STAR 9200 .0 .3 0* 47.5 37.0 129 KIRWIN 9550 -M .0 * -M 21.2 * MARQUETTE 8760 .0 .0 100* 25.5 21.7 118 SYLVAN LAKE 8420 -M .0 * -M 31.7 * SYLVAN ROAD 8120 -M .0 * -M 26.9 * YOUNTS PEAK 8350 -M .0 * -M 26.5 * ----- ----- Basin wide percent of average 0* 123* POWDER-TONGUE BEAR TRAP MEADOW 7900 .0 .0 100* 21.4 17.5 122 BIG GOOSE 7990 .0 -M * 22.7 -M * BONE SPRINGS DIV 9350 .0 .0 100* 30.2 27.0 112 BURGESS JUNCTION 7880 .2 .0 * 21.7 21.9 100 CLOUD PEAK RESERVOIR 9860 .0 .0 100* 29.2 26.2 112 DOME LAKE 8880 .0 .0 100* 21.2 24.2 88 GRAVE SPRINGS 8550 .2 .0 * 21.9 20.5 107 HANSEN SAWMILL 8760 -M .0 * -M 17.2 * MIDDLE POWDER 7760 -M .0 * -M 22.4 * POWDER RIVER PASS 9480 -M .0 * -M 22.2 * SUCKER CREEK 8880 .5 .0 * 27.5 25.2 110 TIE CREEK 6870 .3 -M * 23.7 20.9 114 ----- ----- Basin wide percent of average * 108 BELLE FOURCHE BLIND PARK 6890 -M .0 * -M 24.2 * NORTH RAPID CREEK 6130 .0 -M * 26.7 -M * WARREN PEAK 6520 .0 .0 100* 28.4 18.4 155 ----- ----- Basin wide percent of average * 155* UPPER N. PLATTE RIVER COLUMBINE 9400 .2 .0 * 34.0 33.8 101 DIVIDE PEAK 8800 -M .0 * -M 33.4 * ELK RIVER 8700 -M .0 * -M 27.5 * JOE WRIGHT 10120 .0 .0 100* 40.9 39.9 103 NORTH FRENCH CREEK 10100 -M .0 * -M 35.9 * OLD BATTLE 10000 -M .0 * -M 43.4 * SOUTH BRUSH CREEK 8400 5.5 .0 * 41.5 27.2 153 TOWER 10500 .0 .0 100* 55.8 53.3 105 WEBBER SPRINGS 9200 .0 .0 100* 39.8 37.2 108 WILLOW CREEK PASS 9540 .0 .0 100* 20.2 21.9 93 ----- ----- Basin wide percent of average * 109 LOWER N. PLATTE - SWEETWATER - LARAMIE BROOKLYN LAKE 10240 -M .0 * -M 30.4 * CASPER MTN. 7900 -M .0 * -M 26.9 * DEADMAN HILL 10220 .0 .0 100* 27.9 28.7 98 DEER PARK 9700 .2 -M * 38.5 -M * LAPRELE CREEK 8320 .0 .0 100* 26.9 22.0 123 RENO HILL 8400 .0 .0 100* 30.7 28.2 109 ROACH 9700 .0 .0 100* 31.0 34.0 92 SAND LAKE 10080 .0 .0 100* 45.7 31.9 143 SOUTH PASS 9040 -M .0 * -M 27.7 * WINDY PEAK 7840 .0 .0 100* 24.0 19.7 122 ----- ----- Basin wide percent of average * 114 LITTLE SNAKE RIVER BATTLE MOUNTAIN 7440 .2 .0 * 25.2 22.7 111 DIVIDE PEAK 8800 -M .0 * -M 33.4 * OLD BATTLE 10000 -M .0 * -M 43.4 * SANDSTONE RS 8150 .6 .0 * 30.0 28.4 106 WHISKEY PARK 8950 -M .0 * -M 41.3 * ----- ----- Basin wide percent of average * 108* UPPER GREEN RIVER BIG SANDY OPENING 9100 .0 .0 100* 23.5 23.4 101 BLIND BULL SUM 8650 .0 .0 100* 33.0 32.0 104 EAST RIM DIVIDE 7930 .0 .0 100* 21.2 21.7 98 ELKHART PARK G.S. 9400 .2 .0 * 24.4 22.9 107 GROS VENTRE SUMMIT 8775 .0 .0 100* 23.7 22.9 104 KENDALL R.S. 7740 .0 .0 100* 23.0 22.2 104 LOOMIS PARK 8240 .0 .0 100* 28.7 27.0 106 NEW FORK LAKE 8340 .0 .0 100* 21.0 20.7 102 SNIDER BASIN 8250 .0 .0 100* 26.7 21.7 124 SPRING CREEK DIVIDE 9000 .0 .0 100* 40.8 36.8 111 TRIPLE PEAK 8500 .0 .0 100* 43.3 42.8 102 ----- ----- Basin wide percent of average * 106 LOWER GREEN RIVER HAMS FORK 7840 .0 .0 100* 21.5 19.2 113 HEWINTA 9500 .0 .0 100* 23.2 22.5 104 HICKERSON PARK 9150 .3 .0 * 18.9 18.7 101 HOLE-IN-ROCK 9150 .0 .0 100* 19.7 18.7 105 INDIAN CREEK 9425 .0 .0 100* 38.7 35.5 109 KELLEY R.S. 8180 .0 .0 100* 28.7 26.9 107 STEEL CREEK PARK 10100 .0 .0 100* 28.4 25.7 111 ----- ----- Basin wide percent of average * 108 UPPER BEAR RIVER BUG LAKE 7950 .2 .0 * 32.2 26.9 120 HAYDEN FORK 9400 .0 .0 100* 32.5 29.9 109 KELLEY R.S. 8180 .0 .0 100* 28.7 26.9 107 LILY LAKE 9050 .2 .0 * 28.7 24.4 118 MONTE CRISTO 8960 .0 .0 100* 42.0 36.7 115 SALT RIVER SUMMIT 7600 .0 .0 100* 27.5 24.2 114 TRIAL LAKE 9960 .0 .0 100* 35.3 35.3 100 ----- ----- Basin wide percent of average * 112 ----------------------------------------------------------------------------- -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.