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 SATURDAY: OCTOBER 11 , 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 * .9 .6 150 COTTONWOOD CREEK 7600 .0 .0 100* 1.1 .7 157 GRANITE CREEK 6770 .2 .0 * .3 .7 43 GRASSY LAKE 7265 .1 .0 * 1.5 1.1 136 GROS VENTRE SUMMIT 8775 .2 .0 * .6 .5 120 LEWIS LAKE DIVIDE 7860 .4 .0 * 1.2 1.1 109 PHILLIPS BENCH 8200 .1 .0 * .8 .8 100 SALT RIVER SUMMIT 7600 .2 .0 * 2.1 .5 420 SNAKE RIVER STATION 6920 .0 .0 100* .7 .7 100 SPRING CREEK DIVIDE 9000 .0 .0 100* .4 .7 57 THUMB DIVIDE 7980 .2 .0 * .9 .6 150 TOGWOTEE PASS 9580 .7 .7 100* .8 .8 100 TWO OCEAN PLATEAU 9360 .8 .9 89* 1.4 .9 156 WILLOW CREEK 8450 .1 .0 * 1.6 .9 178 ----- ----- Basin wide percent of average 94* 135 UPPER YELLOWSTONE-MADISON BEARTOOTH LAKE 9275 .7 1.2 58* .9 .6 150 BLACK BEAR 7950 1.3 1.0 130* 1.7 1.1 155 CANYON 7940 .6 .2 300* .8 .6 133 FISHER CREEK 9100 1.1 .8 138* 1.0 1.0 100 MADISON PLATEAU 7750 .7 .4 175* 1.4 .8 175 NORTHEAST ENTRANCE 7350 .0 .0 100* 1.1 .5 220 PARKER PEAK 9400 .9 1.4 64* 1.2 .7 171 SYLVAN LAKE 8420 1.0 1.0 100* 2.4 .8 300 THUMB DIVIDE 7980 .2 .0 * .9 .6 150 TWO OCEAN PLATEAU 9360 .8 .9 89* 1.4 .9 156 WHISKEY CREEK 6800 .2 .1 200* 1.1 .7 157 WHITE MILL 8700 .7 .7 100* 1.3 .9 144 WOLVERINE 7650 .0 .1 0* 1.4 .5 280 ----- ----- Basin wide percent of average 103* 171 WIND RIVER BURROUGHS CREEK 8750 .1 .2 50* .5 .5 100 COLD SPRINGS 9630 .1 .2 50* .4 .6 67 DEER PARK 9700 .0 -M * .0 -M * HOBBS PARK 10100 .2 .7 29* .2 .6 33 LITTLE WARM 9620 .1 .3 33* 1.0 .6 167 SOUTH PASS 9040 .1 1.0 10* .6 .7 86 ST. LAWRENCE ALT 8620 .2 .2 100* .6 .5 120 TOGWOTEE PASS 9580 .7 .7 100* .8 .8 100 TOWNSEND CREEK 8700 .0 .2 0* .9 .6 150 ----- ----- Basin wide percent of average 43* 102 BIGHORN BASIN BALD MTN. 9375 1.4 1.2 117* 1.3 .7 186 BEAR TRAP MEADOW 7900 .1 .2 50* 1.0 .5 200 BLACKWATER 9780 .5 1.1 45* .9 .8 112 BONE SPRINGS DIV 9350 1.0 1.4 71* 1.3 .7 186 EVENING STAR 9200 .8 1.4 57* 1.6 .9 178 GRAVE SPRINGS 8550 .1 -M * .6 .6 100 KIRWIN 9550 .4 .6 67* .6 .5 120 LOST CREEK 8080 -M .5 * -M .6 * MARQUETTE 8760 .8 .4 200* 1.1 .6 183 MIDDLE POWDER 7760 -M .5 * .8 .7 114 OWL CREEK 8975 .6 .4 150* .7 .3 233 POWDER RIVER PASS 9480 .1 .4 25* .7 .6 117 SHELL CREEK 9580 .9 1.3 69* .8 .6 133 SYLVAN LAKE 8420 1.0 1.0 100* 2.4 .8 300 SYLVAN ROAD 8120 .0 .5 0* 1.2 .7 171 TIMBER CREEK 7950 .6 .1 600* .9 .4 225 YOUNTS PEAK 8350 .1 .8 12* .7 .6 117 ----- ----- Basin wide percent of average 77* 166 SHOSHONE RIVER BLACKWATER 9780 .5 1.1 45* .9 .8 112 EVENING STAR 9200 .8 1.4 57* 1.6 .9 178 KIRWIN 9550 .4 .6 67* .6 .5 120 MARQUETTE 8760 .8 .4 200* 1.1 .6 183 SYLVAN LAKE 8420 1.0 1.0 100* 2.4 .8 300 SYLVAN ROAD 8120 .0 .5 0* 1.2 .7 171 YOUNTS PEAK 8350 .1 .8 12* .7 .6 117 ----- ----- Basin wide percent of average 62* 173 POWDER-TONGUE BEAR TRAP MEADOW 7900 .1 .2 50* 1.0 .5 200 BONE SPRINGS DIV 9350 1.0 1.4 71* 1.3 .7 186 BURGESS JUNCTION 7880 .1 .6 17* .8 .6 133 CLOUD PEAK RESERVOIR 9860 .0 .5 0* 1.4 .7 200 DOME LAKE 8880 .4 .7 57* .9 .7 129 GRAVE SPRINGS 8550 .1 -M * .6 .6 100 HANSEN SAWMILL 8760 .1 .2 50* .8 .5 160 LOST CREEK 8080 -M .5 * -M .6 * MIDDLE POWDER 7760 -M .5 * .8 .7 114 POWDER RIVER PASS 9480 .1 .4 25* .7 .6 117 SUCKER CREEK 8880 .3 .5 60* 1.1 .7 157 TIE CREEK 6870 .0 -M * .8 .6 133 ----- ----- Basin wide percent of average 47* 148 BELLE FOURCHE BLIND PARK 6890 .0 .6 0* .6 .6 100 NORTH RAPID CREEK 6130 .1 -M * .7 -M * WARREN PEAK 6520 .1 .6 17* .9 .5 180 ----- ----- Basin wide percent of average 8* 136 UPPER N. PLATTE RIVER COLUMBINE 9400 .0 .4 0* 1.0 .8 125 DIVIDE PEAK 8800 .0 .4 0* 1.0 1.0 100 ELK RIVER 8700 .0 .0 100* 1.3 .7 186 JOE WRIGHT 10120 .1 .8 12* 2.8 1.1 255 NORTH FRENCH CREEK 10100 .2 .4 50* 1.1 .7 157 OLD BATTLE 10000 .6 1.4 43* 1.8 1.0 180 SOUTH BRUSH CREEK 8400 .1 .1 100* .5 .7 71 TOWER 10500 -M 1.5 * -M 1.3 * WEBBER SPRINGS 9200 .0 .4 0* 1.2 1.0 120 WILLOW CREEK PASS 9540 .0 .1 0* .6 .6 100 ----- ----- Basin wide percent of average 25* 149 LOWER N. PLATTE - SWEETWATER - LARAMIE BROOKLYN LAKE 10240 .0 .7 0* .3 .8 38 CASPER MTN. 7900 .3 .3 100* .6 .8 75 DEADMAN HILL 10220 .4 .3 133* .2 .8 25 DEER PARK 9700 .0 -M * .0 -M * LAPRELE CREEK 8320 .1 .1 100* .4 .5 80 RENO HILL 8400 .1 .4 25* .4 .8 50 ROACH 9700 .0 .3 0* .5 .9 56 SAND LAKE 10080 .4 .6 67* .7 .8 88 SOUTH PASS 9040 .1 1.0 10* .6 .7 86 WINDY PEAK 7840 .1 .0 * .4 .4 100 ----- ----- Basin wide percent of average 38* 63 LITTLE SNAKE RIVER BATTLE MOUNTAIN 7440 .0 .0 100* 1.5 .6 250 DIVIDE PEAK 8800 .0 .4 0* 1.0 1.0 100 OLD BATTLE 10000 .6 1.4 43* 1.8 1.0 180 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 27* 195 UPPER GREEN RIVER BIG SANDY OPENING 9100 .5 .0 * 1.1 .5 220 BLIND BULL SUM 8650 .3 .0 * .7 .6 117 EAST RIM DIVIDE 7930 .0 .0 100* .2 .5 40 ELKHART PARK G.S. 9400 .7 .0 * 1.1 .5 220 GROS VENTRE SUMMIT 8775 .2 .0 * .6 .5 120 KENDALL R.S. 7740 .1 .0 * .7 .5 140 LOOMIS PARK 8240 .0 .0 100* .4 .6 67 NEW FORK LAKE 8340 .0 .0 100* .7 .5 140 SNIDER BASIN 8250 .2 .0 * .3 .5 60 SPRING CREEK DIVIDE 9000 .0 .0 100* .4 .7 57 TRIPLE PEAK 8500 .1 .0 * 1.0 .9 111 ----- ----- Basin wide percent of average * 114 LOWER GREEN RIVER HAMS FORK 7840 .0 .0 100* .1 .4 25 HEWINTA 9500 .1 .1 100* 1.1 .8 138 HICKERSON PARK 9150 .0 .0 100* 1.3 .7 186 HOLE-IN-ROCK 9150 .0 .0 100* 1.2 .7 171 INDIAN CREEK 9425 .2 .0 * .4 .7 57 KELLEY R.S. 8180 .1 .0 * .4 .6 67 STEEL CREEK PARK 10100 .4 .7 57* 1.9 .8 238 ----- ----- Basin wide percent of average 63* 136 UPPER BEAR RIVER BUG LAKE 7950 .0 .5 0* .7 1.1 64 HAYDEN FORK 9400 .0 .2 0* 1.0 .8 125 KELLEY R.S. 8180 .1 .0 * .4 .6 67 LILY LAKE 9050 .0 .3 0* .8 .9 89 MONTE CRISTO 8960 .1 .6 17* .7 1.1 64 SALT RIVER SUMMIT 7600 .2 .0 * 2.1 .5 420 TRIAL LAKE 9960 .1 .6 17* .6 .9 67 ----- ----- Basin wide percent of average 9* 107 ----------------------------------------------------------------------------- -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.