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 WEDNESDAY: OCTOBER 24 , 2001 ----------------------------------------------------------------------------- BASIN ELEV. SNOW WATER EQUIVALENT TOTAL PRECIPITATION Data Site Name (Ft) % % Current Average Avg Current Average Avg ----------------------------------------------------------------------------- WYOMING SNAKE RIVER BASE CAMP 7030 .5 .4 125* 2.5 1.5 167 COTTONWOOD CREEK 7600 .8 .4 200* 2.4 1.6 150 GRANITE CREEK 6770 .5 .3 167* 2.5 1.7 147 GRASSY LAKE 7265 1.3 .6 217* 2.8 2.4 117 GROS VENTRE SUMMIT 8775 1.5 .6 250* 1.3 1.2 108 LEWIS LAKE DIVIDE 7860 1.8 .7 257* 2.5 2.5 100 PHILLIPS BENCH 8200 2.4 .6 400* 2.8 1.9 147 SALT RIVER SUMMIT 7600 .0 .0 100* 1.2 1.3 92 SNAKE RIVER STATION 6920 .0 .3 0* 2.0 1.7 118 SPRING CREEK DIVIDE 9000 2.7 .7 386* 2.9 1.6 181 THUMB DIVIDE 7980 .7 .3 233* 1.5 1.4 107 TOGWOTEE PASS 9580 3.0 1.7 176* 3.2 1.9 168 TWO OCEAN PLATEAU 9360 3.0 2.5 120* 2.6 2.1 124 WILLOW CREEK 8450 .9 .6 150* 2.5 2.1 119 ----- ----- Basin wide percent of average 197* 131 UPPER YELLOWSTONE-MADISON BEARTOOTH LAKE 9275 3.1 2.3 135* 2.8 1.4 200 BLACK BEAR 7950 3.2 2.0 160* 3.9 2.6 150 CANYON 7940 1.1 .5 220* 1.6 1.3 123 FISHER CREEK 9100 3.6 1.8 200* 3.7 2.2 168 MADISON PLATEAU 7750 1.4 1.0 140* 2.5 1.9 132 NORTHEAST ENTRANCE 7350 .0 .2 0* 1.3 1.1 118 PARKER PEAK 9400 1.8 2.8 64 1.3 1.6 81 SYLVAN LAKE 8420 2.0 1.8 111* 2.7 1.9 142 THUMB DIVIDE 7980 .7 .3 233* 1.5 1.4 107 TWO OCEAN PLATEAU 9360 3.0 2.5 120* 2.6 2.1 124 WHISKEY CREEK 6800 1.1 .5 220* 1.7 1.6 106 WHITE MILL 8700 3.1 1.4 221* 2.9 2.0 145 WOLVERINE 7650 .2 .2 100* 1.8 1.2 150 ----- ----- Basin wide percent of average 140* 136 WIND RIVER BURROUGHS CREEK 8750 2.1 .6 350* 2.2 1.2 183 COLD SPRINGS 9630 .3 .6 50* .8 1.4 57 DEER PARK 9700 1.4 -M * 1.7 -M * HOBBS PARK 10100 1.1 1.5 73* 1.0 1.5 67 LITTLE WARM 9620 1.3 .7 186* 1.7 1.3 131 SOUTH PASS 9040 .5 2.0 25 1.2 1.6 75 ST. LAWRENCE ALT 8620 .0 .6 0* .5 1.3 38 TOGWOTEE PASS 9580 3.0 1.7 176* 3.2 1.9 168 TOWNSEND CREEK 8700 .1 .7 14* .4 1.4 29 ----- ----- Basin wide percent of average 100* 95 BIGHORN BASIN BALD MTN. 9375 3.4 2.0 170* 3.2 1.7 188 BEAR TRAP MEADOW 7900 1.0 .5 200* 1.9 1.2 158 BLACKWATER 9780 2.1 1.9 111* 1.9 1.8 106 BONE SPRINGS DIV 9350 3.2 2.2 145 3.3 1.6 206 EVENING STAR 9200 2.7 2.8 96* 3.5 2.2 159 GRAVE SPRINGS 8550 1.0 .8 125* 2.3 1.4 164 KIRWIN 9550 1.6 1.1 145* 1.6 1.2 133 MARQUETTE 8760 .5 .8 62* .4 1.3 31 MIDDLE POWDER 7760 1.3 1.0 130* 2.2 1.6 138 OWL CREEK 8975 .0 .5 0* .3 .7 43 POWDER RIVER PASS 9480 1.8 .9 200* 2.9 1.4 207 SHELL CREEK 9580 3.4 2.0 170 3.2 1.4 229 SYLVAN LAKE 8420 2.0 1.8 111* 2.7 1.9 142 SYLVAN ROAD 8120 .6 1.1 55* 2.6 1.6 162 TIMBER CREEK 7950 .2 .2 100* 1.0 1.0 100 YOUNTS PEAK 8350 1.9 1.7 112* 1.8 1.4 129 ----- ----- Basin wide percent of average 125* 149 SHOSHONE RIVER BLACKWATER 9780 2.1 1.9 111* 1.9 1.8 106 EVENING STAR 9200 2.7 2.8 96* 3.5 2.2 159 KIRWIN 9550 1.6 1.1 145* 1.6 1.2 133 MARQUETTE 8760 .5 .8 62* .4 1.3 31 SYLVAN LAKE 8420 2.0 1.8 111* 2.7 1.9 142 SYLVAN ROAD 8120 .6 1.1 55* 2.6 1.6 162 YOUNTS PEAK 8350 1.9 1.7 112* 1.8 1.4 129 ----- ----- Basin wide percent of average 102* 127 POWDER-TONGUE BEAR TRAP MEADOW 7900 1.0 .5 200* 1.9 1.2 158 BIG GOOSE 7990 1.4 -M * 3.1 -M * BONE SPRINGS DIV 9350 3.2 2.2 145 3.3 1.6 206 BURGESS JUNCTION 7880 1.6 1.2 133* 2.8 1.5 187 CLOUD PEAK RESERVOIR 9860 2.1 1.0 210* 3.7 1.6 231 DOME LAKE 8880 2.3 1.4 164* 3.6 1.7 212 GRAVE SPRINGS 8550 1.0 .8 125* 2.3 1.4 164 HANSEN SAWMILL 8760 .4 .6 67* 1.9 1.2 158 MIDDLE POWDER 7760 1.3 1.0 130* 2.2 1.6 138 POWDER RIVER PASS 9480 1.8 .9 200* 2.9 1.4 207 SUCKER CREEK 8880 2.5 .9 278* 4.0 1.6 250 TIE CREEK 6870 .0 -M * 2.7 1.4 193 ----- ----- Basin wide percent of average 164* 193 BELLE FOURCHE BLIND PARK 6890 .1 1.2 8 2.3 1.3 177 COLE CANYON 5910 .0 .5 0* .9 1.0 90 NORTH RAPID CREEK 6130 .2 -M * 2.1 -M * ----- ----- Basin wide percent of average 6* 139 UPPER N. PLATTE RIVER COLUMBINE 9400 .2 1.1 18* 1.7 1.9 89 DIVIDE PEAK 8800 .5 1.4 36* .8 2.3 35 ELK RIVER 8700 .0 .2 0* 1.4 1.7 82 JOE WRIGHT 10120 1.5 2.2 68* 1.9 2.6 73 NORTH FRENCH CREEK 10100 2.5 1.4 179* 2.6 1.7 153 OLD BATTLE 10000 .9 2.8 32* 1.8 2.4 75 SOUTH BRUSH CREEK 8400 .1 .3 33* 1.3 1.7 76 TOWER 10500 1.7 4.2 40* 2.1 3.0 70 WEBBER SPRINGS 9200 .2 1.2 17* 1.6 2.2 73 WILLOW CREEK PASS 9540 -M .7 * .3 1.3 23 ----- ----- Basin wide percent of average 51* 75 LOWER N. PLATTE - SWEETWATER - LARAMIE BROOKLYN LAKE 10240 1.6 1.4 114* 2.5 1.8 139 CASPER MTN. 7900 2.0 .9 222* 3.0 1.9 158 DEADMAN HILL 10220 .6 .9 67* 1.1 1.8 61 DEER PARK 9700 1.4 -M * 1.7 -M * LAPRELE CREEK 8320 .9 .5 180* 2.8 1.1 255 RENO HILL 8400 2.0 1.2 167* 2.8 1.9 147 ROACH 9700 .3 .9 33* 1.2 2.0 60 SAND LAKE 10080 2.8 2.1 133* 3.0 1.9 158 SOUTH PASS 9040 .5 2.0 25 1.2 1.6 75 WINDY PEAK 7840 .1 .1 100* 2.1 .9 233 ----- ----- Basin wide percent of average 108* 132 LITTLE SNAKE RIVER BATTLE MOUNTAIN 7440 .0 .2 0* .8 1.3 62 DIVIDE PEAK 8800 .5 1.4 36* .8 2.3 35 OLD BATTLE 10000 .9 2.8 32* 1.8 2.4 75 SANDSTONE RS 8150 -M .4 * 1.6 1.3 123 WHISKEY PARK 8950 .6 1.5 40* 2.0 1.4 143 ----- ----- Basin wide percent of average 34* 80 UPPER GREEN RIVER BIG SANDY OPENING 9100 1.4 .4 350* 1.0 1.2 83 BLIND BULL SUM 8650 3.0 1.2 250* 2.5 1.5 167 EAST RIM DIVIDE 7930 .6 .2 300* 1.1 1.1 100 ELKHART PARK G.S. 9400 -M .5 * -M 1.2 * GROS VENTRE SUMMIT 8775 1.5 .6 250* 1.3 1.2 108 KENDALL R.S. 7740 .7 .0 * 1.6 1.1 145 LOOMIS PARK 8240 1.9 .3 633* 2.1 1.3 162 NEW FORK LAKE 8340 .8 .0 * 1.2 1.0 120 SNIDER BASIN 8250 1.2 .0 * 2.1 1.1 191 SPRING CREEK DIVIDE 9000 2.7 .7 386* 2.9 1.6 181 TRIPLE PEAK 8500 2.6 .5 520* 3.5 2.1 167 ----- ----- Basin wide percent of average 351* 146 LOWER GREEN RIVER HAMS FORK 7840 .1 .0 * .3 1.0 30 HEWINTA 9500 .1 .2 50* 1.9 1.8 106 HICKERSON PARK 9150 .0 .1 0* .7 1.6 44 HOLE-IN-ROCK 9150 .0 .1 0* 1.0 1.6 62 INDIAN CREEK 9425 1.5 .9 167* 1.1 1.7 65 KELLEY R.S. 8180 .2 .3 67* .7 1.3 54 STEEL CREEK PARK 10100 .9 1.4 64* 1.0 1.8 56 ----- ----- Basin wide percent of average 90* 62 UPPER BEAR RIVER BUG LAKE 7950 -M .9 * .6 2.4 25 HAYDEN FORK 9400 .2 .6 33* 1.4 1.9 74 KELLEY R.S. 8180 .2 .3 67* .7 1.3 54 LILY LAKE 9050 .0 .7 0* 1.3 2.0 65 MONTE CRISTO 8960 .0 1.1 0* 1.0 2.6 38 SALT RIVER SUMMIT 7600 .0 .0 100* 1.2 1.3 92 TRIAL LAKE 9960 .1 1.3 8* 1.8 2.2 82 ----- ----- Basin wide percent of average 12* 58 ----------------------------------------------------------------------------- -M = Missing data * = Data may not provide a valid measure of conditions. Units = inches for the Current and Average Snow Water Equivalent and Total Precipitation values 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.