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 FRIDAY: OCTOBER 10 , 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 * .8 .6 133 COTTONWOOD CREEK 7600 .0 .0 100* 1.1 .6 183 GRANITE CREEK 6770 .2 .0 * .2 .7 29 GRASSY LAKE 7265 .3 .0 * 1.4 1.0 140 GROS VENTRE SUMMIT 8775 .4 .0 * .6 .5 120 LEWIS LAKE DIVIDE 7860 .5 .0 * 1.1 1.0 110 PHILLIPS BENCH 8200 .1 .0 * .8 .8 100 SALT RIVER SUMMIT 7600 .2 .0 * 1.5 .5 300 SNAKE RIVER STATION 6920 .1 .0 * .6 .7 86 SPRING CREEK DIVIDE 9000 .0 .0 100* .4 .6 67 THUMB DIVIDE 7980 .3 .0 * .7 .6 117 TOGWOTEE PASS 9580 .7 .6 117* .7 .7 100 TWO OCEAN PLATEAU 9360 .7 .8 88* 1.4 .8 175 WILLOW CREEK 8450 .1 .0 * 1.7 .8 212 ----- ----- Basin wide percent of average 100* 131 UPPER YELLOWSTONE-MADISON BEARTOOTH LAKE 9275 .7 1.2 58* .8 .6 133 BLACK BEAR 7950 .8 .9 89* 1.1 1.0 110 CANYON 7940 .4 .2 200* .4 .5 80 FISHER CREEK 9100 .8 .7 114* .6 .9 67 MADISON PLATEAU 7750 .4 .4 100* .8 .7 114 NORTHEAST ENTRANCE 7350 .0 .0 100* .9 .4 225 PARKER PEAK 9400 .8 1.4 57* 1.1 .6 183 SYLVAN LAKE 8420 1.0 1.0 100* 2.3 .8 288 THUMB DIVIDE 7980 .3 .0 * .7 .6 117 TWO OCEAN PLATEAU 9360 .7 .8 88* 1.4 .8 175 WHISKEY CREEK 6800 .3 .1 300* .6 .6 100 WHITE MILL 8700 .5 .6 83* 1.0 .8 125 WOLVERINE 7650 .3 .1 300* 1.4 .5 280 ----- ----- Basin wide percent of average 91* 149 WIND RIVER BURROUGHS CREEK 8750 .2 .2 100* .5 .5 100 COLD SPRINGS 9630 .1 .2 50* .3 .6 50 DEER PARK 9700 .0 -M * .0 -M * HOBBS PARK 10100 .4 .6 67* .2 .6 33 LITTLE WARM 9620 .3 .3 100* .9 .5 180 SOUTH PASS 9040 .2 .9 22* .7 .6 117 ST. LAWRENCE ALT 8620 .4 .2 200* .5 .5 100 TOGWOTEE PASS 9580 .7 .6 117* .7 .7 100 TOWNSEND CREEK 8700 .1 .2 50* .9 .6 150 ----- ----- Basin wide percent of average 75* 102 BIGHORN BASIN BALD MTN. 9375 1.5 1.1 136* 1.2 .7 171 BEAR TRAP MEADOW 7900 .1 .2 50* .4 .5 80 BLACKWATER 9780 .4 1.1 36* .7 .7 100 BONE SPRINGS DIV 9350 1.0 1.4 71* 1.3 .6 217 EVENING STAR 9200 .7 1.3 54* 1.5 .8 188 GRAVE SPRINGS 8550 .3 -M * .6 .6 100 KIRWIN 9550 .3 .6 50* .5 .5 100 LOST CREEK 8080 -M .5 * -M .6 * MARQUETTE 8760 .7 .4 175* 1.0 .5 200 MIDDLE POWDER 7760 .6 .5 120* .7 .6 117 OWL CREEK 8975 .5 .4 125* .5 .3 167 POWDER RIVER PASS 9480 .3 .4 75* .5 .6 83 SHELL CREEK 9580 .9 1.2 75* .7 .6 117 SYLVAN LAKE 8420 1.0 1.0 100* 2.3 .8 288 SYLVAN ROAD 8120 .1 .5 20* 1.2 .6 200 TIMBER CREEK 7950 .7 .1 700* 1.0 .4 250 YOUNTS PEAK 8350 .1 .8 12* .5 .6 83 ----- ----- Basin wide percent of average 81* 155 SHOSHONE RIVER BLACKWATER 9780 .4 1.1 36* .7 .7 100 EVENING STAR 9200 .7 1.3 54* 1.5 .8 188 KIRWIN 9550 .3 .6 50* .5 .5 100 MARQUETTE 8760 .7 .4 175* 1.0 .5 200 SYLVAN LAKE 8420 1.0 1.0 100* 2.3 .8 288 SYLVAN ROAD 8120 .1 .5 20* 1.2 .6 200 YOUNTS PEAK 8350 .1 .8 12* .5 .6 83 ----- ----- Basin wide percent of average 58* 171 POWDER-TONGUE BEAR TRAP MEADOW 7900 .1 .2 50* .4 .5 80 BONE SPRINGS DIV 9350 1.0 1.4 71* 1.3 .6 217 BURGESS JUNCTION 7880 .4 .6 67* .8 .6 133 CLOUD PEAK RESERVOIR 9860 .1 .5 20* 1.5 .6 250 DOME LAKE 8880 .5 .7 71* 1.0 .7 143 GRAVE SPRINGS 8550 .3 -M * .6 .6 100 HANSEN SAWMILL 8760 .1 .2 50* .8 .5 160 LOST CREEK 8080 -M .5 * -M .6 * MIDDLE POWDER 7760 .6 .5 120* .7 .6 117 POWDER RIVER PASS 9480 .3 .4 75* .5 .6 83 SUCKER CREEK 8880 .6 .5 120* .9 .6 150 TIE CREEK 6870 .0 -M * .8 .6 133 ----- ----- Basin wide percent of average 74* 143 BELLE FOURCHE BLIND PARK 6890 .1 .6 17* .6 .5 120 NORTH RAPID CREEK 6130 .1 -M * .3 -M * WARREN PEAK 6520 .1 .6 17* .8 .4 200 ----- ----- Basin wide percent of average 17* 156 UPPER N. PLATTE RIVER COLUMBINE 9400 .0 .3 0* 1.0 .7 143 DIVIDE PEAK 8800 .0 .4 0* .8 .9 89 ELK RIVER 8700 .0 .0 100* 1.2 .7 171 JOE WRIGHT 10120 .1 .7 14* .8 1.0 80 NORTH FRENCH CREEK 10100 .0 .4 0* 1.0 .7 143 OLD BATTLE 10000 .7 1.3 54* 1.7 .9 189 SOUTH BRUSH CREEK 8400 .0 .1 0* .5 .7 71 TOWER 10500 -M 1.4 * -M 1.2 * WEBBER SPRINGS 9200 .0 .3 0* 1.2 .9 133 WILLOW CREEK PASS 9540 .0 .1 0* .2 .5 40 ----- ----- Basin wide percent of average 22* 120 LOWER N. PLATTE - SWEETWATER - LARAMIE BROOKLYN LAKE 10240 .0 .7 0* .2 .7 29 CASPER MTN. 7900 .4 .3 133* .6 .7 86 DEADMAN HILL 10220 .9 .3 300* .1 .7 14 DEER PARK 9700 .0 -M * .0 -M * LAPRELE CREEK 8320 .1 .1 100* .4 .4 100 RENO HILL 8400 .3 .4 75* .5 .7 71 ROACH 9700 .0 .3 0* .5 .8 62 SAND LAKE 10080 .4 .6 67* .6 .8 75 SOUTH PASS 9040 .2 .9 22* .7 .6 117 WINDY PEAK 7840 .0 .0 100* .5 .3 167 ----- ----- Basin wide percent of average 64* 72 LITTLE SNAKE RIVER BATTLE MOUNTAIN 7440 .0 .0 100* 1.5 .5 300 DIVIDE PEAK 8800 .0 .4 0* .8 .9 89 OLD BATTLE 10000 .7 1.3 54* 1.7 .9 189 SANDSTONE RS 8150 .0 .0 100* 1.4 .5 280 WHISKEY PARK 8950 .0 .4 0* 1.5 .6 250 ----- ----- Basin wide percent of average 33* 203 UPPER GREEN RIVER BIG SANDY OPENING 9100 .5 .0 * .9 .5 180 BLIND BULL SUM 8650 .3 .0 * .8 .6 133 EAST RIM DIVIDE 7930 .0 .0 100* .1 .4 25 ELKHART PARK G.S. 9400 .8 .0 * 1.0 .5 200 GROS VENTRE SUMMIT 8775 .4 .0 * .6 .5 120 KENDALL R.S. 7740 .1 .0 * .7 .4 175 LOOMIS PARK 8240 .0 .0 100* .3 .5 60 NEW FORK LAKE 8340 .0 .0 100* .7 .4 175 SNIDER BASIN 8250 .1 .0 * .1 .4 25 SPRING CREEK DIVIDE 9000 .0 .0 100* .4 .6 67 TRIPLE PEAK 8500 .1 .0 * .8 .8 100 ----- ----- Basin wide percent of average * 114 LOWER GREEN RIVER HAMS FORK 7840 .1 .0 * .2 .4 50 HEWINTA 9500 .1 .1 100* 1.2 .7 171 HICKERSON PARK 9150 .0 .0 100* 1.3 .6 217 HOLE-IN-ROCK 9150 .0 .0 100* 1.2 .6 200 INDIAN CREEK 9425 .2 .0 * .4 .7 57 KELLEY R.S. 8180 .0 .0 100* .3 .5 60 STEEL CREEK PARK 10100 .4 .7 57* 1.7 .7 243 ----- ----- Basin wide percent of average 63* 150 UPPER BEAR RIVER BUG LAKE 7950 .0 .5 0* .7 1.0 70 HAYDEN FORK 9400 .0 .2 0* 1.0 .7 143 KELLEY R.S. 8180 .0 .0 100* .3 .5 60 LILY LAKE 9050 .0 .3 0* .8 .8 100 MONTE CRISTO 8960 .1 .6 17* .6 1.0 60 SALT RIVER SUMMIT 7600 .2 .0 * 1.5 .5 300 TRIAL LAKE 9960 .1 .6 17* .7 .8 88 ----- ----- Basin wide percent of average 9* 106 ----------------------------------------------------------------------------- -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.