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: SEPTEMBER 6 , 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* 37.5 32.7 115 COTTONWOOD CREEK 7600 .2 .0 * 44.8 36.3 124 GRANITE CREEK 6770 .2 .0 * 34.4 36.5 95 GRASSY LAKE 7265 .0 .0 100* 60.5 53.9 113 GROS VENTRE SUMMIT 8775 .0 .0 100* 26.0 24.7 106 LEWIS LAKE DIVIDE 7860 .0 .0 100* 55.0 54.8 101 PHILLIPS BENCH 8200 .2 .0 * 45.4 43.2 106 SALT RIVER SUMMIT 7600 .2 .0 * 31.0 26.2 119 SNAKE RIVER STATION 6920 .0 .0 100* 39.9 37.9 106 SPRING CREEK DIVIDE 9000 .3 .0 * 43.4 38.9 112 THUMB DIVIDE 7980 .0 .0 100* 35.5 30.5 117 TOGWOTEE PASS 9580 .0 .0 100* 41.8 41.2 102 TWO OCEAN PLATEAU 9360 .3 .0 * 47.2 45.0 105 WILLOW CREEK 8450 .0 .0 100* 58.8 46.4 127 ----- ----- Basin wide percent of average * 110 UPPER YELLOWSTONE-MADISON BEARTOOTH LAKE 9275 .0 .0 100* 36.9 31.7 117 BLACK BEAR 7950 .0 .0 100* 71.4 59.4 121 CANYON 7940 .0 .0 100* 30.4 25.9 118 FISHER CREEK 9100 .0 .0 100* 55.7 56.7 99 MADISON PLATEAU 7750 .0 .0 100* 47.0 40.8 116 NORTHEAST ENTRANCE 7350 .0 .0 100* 25.9 23.5 111 PARKER PEAK 9400 .2 .0 * 34.7 29.8 117 SYLVAN LAKE 8420 .0 .0 100* 44.2 35.0 127 THUMB DIVIDE 7980 .0 .0 100* 35.5 30.5 117 TWO OCEAN PLATEAU 9360 .3 .0 * 47.2 45.0 105 WHISKEY CREEK 6800 .0 .0 100* 39.0 34.9 112 WHITE MILL 8700 .0 .0 100* 39.0 45.0 87 WOLVERINE 7650 .0 .0 100* 22.4 25.0 90 ----- ----- Basin wide percent of average * 110 WIND RIVER BURROUGHS CREEK 8750 .4 .0 * 31.5 28.0 113 COLD SPRINGS 9630 .0 .0 100* 30.0 21.4 141 DEER PARK 9700 .3 -M * 42.2 -M * HOBBS PARK 10100 .2 .0 * 34.7 27.0 129 LITTLE WARM 9620 .2 .0 * 31.9 25.3 127 SOUTH PASS 9040 -M .0 * -M 29.7 * ST. LAWRENCE ALT 8620 .2 .0 * 25.8 19.7 132 TOGWOTEE PASS 9580 .0 .0 100* 41.8 41.2 102 TOWNSEND CREEK 8700 .3 .0 * 31.4 24.0 131 ----- ----- Basin wide percent of average * 122 BIGHORN BASIN BALD MTN. 9375 .0 .0 100* 32.3 31.3 104 BEAR TRAP MEADOW 7900 -M .0 * -M 19.4 * BLACKWATER 9780 .0 .0 100* 39.8 34.8 115 BONE SPRINGS DIV 9350 -M .0 * 32.8 30.0 110 EVENING STAR 9200 .0 .0 100* 51.0 42.0 122 GRAVE SPRINGS 8550 .3 .0 * 24.2 22.5 108 KIRWIN 9550 .2 .0 * 29.5 24.2 123 MARQUETTE 8760 .2 .0 * 31.0 24.4 128 MIDDLE POWDER 7760 .3 .0 * 32.0 24.4 132 OWL CREEK 8975 -M .0 * 23.0 16.0 145 POWDER RIVER PASS 9480 .0 .0 100* 29.9 24.2 124 SHELL CREEK 9580 .0 .0 100* 29.9 26.8 112 SYLVAN LAKE 8420 .0 .0 100* 44.2 35.0 127 SYLVAN ROAD 8120 .0 .0 100* 30.4 30.4 100 TIMBER CREEK 7950 .3 .0 * 25.3 19.7 129 YOUNTS PEAK 8350 .0 .0 100* 32.9 29.5 112 ----- ----- Basin wide percent of average * 118 SHOSHONE RIVER BLACKWATER 9780 .0 .0 100* 39.8 34.8 115 EVENING STAR 9200 .0 .0 100* 51.0 42.0 122 KIRWIN 9550 .2 .0 * 29.5 24.2 123 MARQUETTE 8760 .2 .0 * 31.0 24.4 128 SYLVAN LAKE 8420 .0 .0 100* 44.2 35.0 127 SYLVAN ROAD 8120 .0 .0 100* 30.4 30.4 100 YOUNTS PEAK 8350 .0 .0 100* 32.9 29.5 112 ----- ----- Basin wide percent of average * 118 POWDER-TONGUE BEAR TRAP MEADOW 7900 -M .0 * -M 19.4 * BIG GOOSE 7990 .0 -M * 25.0 -M * BONE SPRINGS DIV 9350 -M .0 * 32.8 30.0 110 BURGESS JUNCTION 7880 .3 .0 * 24.2 23.5 103 CLOUD PEAK RESERVOIR 9860 .2 .0 * 32.7 28.5 115 DOME LAKE 8880 .0 .0 100* 24.0 26.3 92 GRAVE SPRINGS 8550 .3 .0 * 24.2 22.5 108 HANSEN SAWMILL 8760 .5 .0 * 23.0 19.4 119 MIDDLE POWDER 7760 .3 .0 * 32.0 24.4 132 POWDER RIVER PASS 9480 .0 .0 100* 29.9 24.2 124 SUCKER CREEK 8880 -M .0 * 30.7 27.3 113 TIE CREEK 6870 .3 -M * 27.5 22.7 122 ----- ----- Basin wide percent of average * 114 BELLE FOURCHE BLIND PARK 6890 .4 .0 * 32.5 27.0 121 NORTH RAPID CREEK 6130 .3 -M * 29.9 -M * WARREN PEAK 6520 .2 .0 * 31.0 20.8 150 ----- ----- Basin wide percent of average * 133 UPPER N. PLATTE RIVER COLUMBINE 9400 .2 .0 * 36.0 36.2 100 DIVIDE PEAK 8800 .0 .0 100* 41.2 35.8 116 ELK RIVER 8700 .0 .0 100* 38.3 29.7 130 JOE WRIGHT 10120 .2 .0 * 43.2 43.5 100 NORTH FRENCH CREEK 10100 .3 .0 * 45.5 38.5 119 OLD BATTLE 10000 .0 .0 100* 58.2 46.0 127 SOUTH BRUSH CREEK 8400 .0 .0 100* 33.2 29.5 113 TOWER 10500 .0 .0 100* -M 56.5 * WEBBER SPRINGS 9200 .2 .0 * 43.4 39.4 111 WILLOW CREEK PASS 9540 .0 .0 100* 25.2 24.8 102 ----- ----- Basin wide percent of average * 113 LOWER N. PLATTE - SWEETWATER - LARAMIE BROOKLYN LAKE 10240 .4 .0 * 41.4 32.8 127 CASPER MTN. 7900 .2 .0 * 30.7 28.7 107 DEADMAN HILL 10220 .0 .0 100* 31.0 31.3 100 DEER PARK 9700 .3 -M * 42.2 -M * LAPRELE CREEK 8320 .2 .0 * 28.7 24.0 120 RENO HILL 8400 .0 .0 100* 32.5 29.8 110 ROACH 9700 .0 .0 100* 33.5 36.2 93 SAND LAKE 10080 .2 .0 * 48.0 33.9 142 SOUTH PASS 9040 -M .0 * -M 29.7 * WINDY PEAK 7840 .2 .0 * 26.3 21.2 125 ----- ----- Basin wide percent of average * 115 LITTLE SNAKE RIVER BATTLE MOUNTAIN 7440 .0 .0 100* 27.2 24.5 111 DIVIDE PEAK 8800 .0 .0 100* 41.2 35.8 116 OLD BATTLE 10000 .0 .0 100* 58.2 46.0 127 SANDSTONE RS 8150 .0 .0 100* 32.8 31.5 105 WHISKEY PARK 8950 .0 .0 100* -M 43.4 * ----- ----- Basin wide percent of average * 116 UPPER GREEN RIVER BIG SANDY OPENING 9100 .0 .0 100* 26.4 25.2 105 BLIND BULL SUM 8650 .4 .0 * 36.0 33.9 107 EAST RIM DIVIDE 7930 .4 .0 * 23.5 23.5 100 ELKHART PARK G.S. 9400 .4 .0 * 28.2 24.8 114 GROS VENTRE SUMMIT 8775 .0 .0 100* 26.0 24.7 106 KENDALL R.S. 7740 .0 .0 100* 26.9 24.0 112 LOOMIS PARK 8240 .0 .0 100* 30.8 29.2 106 NEW FORK LAKE 8340 .0 .0 100* 23.8 22.5 106 SNIDER BASIN 8250 .0 .0 100* 28.8 23.5 123 SPRING CREEK DIVIDE 9000 .3 .0 * 43.4 38.9 112 TRIPLE PEAK 8500 .0 .0 100* 45.7 45.5 101 ----- ----- Basin wide percent of average * 108 LOWER GREEN RIVER HAMS FORK 7840 .0 .0 100* 24.3 20.8 117 HEWINTA 9500 .2 .0 * 27.0 24.7 110 HICKERSON PARK 9150 .5 .0 * 22.7 20.9 109 HOLE-IN-ROCK 9150 .0 .0 100* 23.0 20.9 111 INDIAN CREEK 9425 .5 .0 * 41.4 37.7 110 KELLEY R.S. 8180 .0 .0 100* 31.0 29.0 107 STEEL CREEK PARK 10100 .0 .0 100* 32.7 28.9 114 ----- ----- Basin wide percent of average * 111 UPPER BEAR RIVER BUG LAKE 7950 .2 .0 * 34.2 28.5 120 HAYDEN FORK 9400 .3 .0 * 36.4 32.0 114 KELLEY R.S. 8180 .0 .0 100* 31.0 29.0 107 LILY LAKE 9050 -M .0 * 32.4 26.5 122 MONTE CRISTO 8960 .0 .0 100* 44.0 38.7 114 SALT RIVER SUMMIT 7600 .2 .0 * 31.0 26.2 119 TRIAL LAKE 9960 .0 .0 100* 39.5 38.0 104 ----- ----- 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.