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: OCTOBER 27 , 1997 ----------------------------------------------------------------------------- BASIN ELEV. SNOW WATER EQUIVALENT TOTAL PRECIPITATION Data Site Name (Ft) % % Current Average Avg Current Average Avg ----------------------------------------------------------------------------- WYOMING SNAKE RIVER BASE CAMP 7030 .2 .5 40* 1.7 1.7 100 COTTONWOOD CREEK 7600 .6 .5 120* 2.3 1.8 128 GRANITE CREEK 6770 .2 .4 50* .6 1.9 32 GRASSY LAKE 7265 .9 .8 112* 2.9 2.8 104 GROS VENTRE SUMMIT 8775 2.6 .8 325* 1.1 1.3 85 LEWIS LAKE DIVIDE 7860 .6 1.0 60* 2.1 2.9 72 PHILLIPS BENCH 8200 .6 .8 75* 1.7 2.2 77 SALT RIVER SUMMIT 7600 .3 .0 * 2.0 1.4 143 SNAKE RIVER STATION 6920 -M .4 * -M 1.9 * SPRING CREEK DIVIDE 9000 .4 1.0 40* 1.4 1.8 78 THUMB DIVIDE 7980 -M .4 * -M 1.6 * TOGWOTEE PASS 9580 2.2 1.9 116* 2.0 2.1 95 TWO OCEAN PLATEAU 9360 2.8 2.9 97 2.7 2.3 117 WILLOW CREEK 8450 .6 .8 75* 3.5 2.3 152 ----- ----- Basin wide percent of average 103* 98 UPPER YELLOWSTONE-MADISON BEARTOOTH LAKE 9275 2.0 2.6 77* 1.7 1.6 106 BLACK BEAR 7950 2.9 2.3 126* 3.6 2.9 124 CANYON 7940 1.3 .6 217* 2.8 1.5 187 FISHER CREEK 9100 2.2 2.1 105* 2.3 2.5 92 MADISON PLATEAU 7750 1.5 1.2 125* 2.6 2.1 124 NORTHEAST ENTRANCE 7350 .1 .2 50* 1.8 1.3 138 PARKER PEAK 9400 2.2 3.1 71 2.5 1.8 139 SYLVAN LAKE 8420 1.8 2.1 86* -M 2.2 * THUMB DIVIDE 7980 -M .4 * -M 1.6 * TWO OCEAN PLATEAU 9360 2.8 2.9 97 2.7 2.3 117 WHISKEY CREEK 6800 .5 .6 83* 2.0 1.8 111 WHITE MILL 8700 1.9 1.6 119* 2.2 2.3 96 WOLVERINE 7650 .2 .2 100* 2.0 1.3 154 ----- ----- Basin wide percent of average 99* 122 WIND RIVER BURROUGHS CREEK 8750 1.1 .7 157* 1.5 1.3 115 COLD SPRINGS 9630 1.9 .7 271* 2.4 1.6 150 DEER PARK 9700 .0 -M * .0 -M * HOBBS PARK 10100 2.4 1.7 141* 2.7 1.7 159 LITTLE WARM 9620 .9 .8 112* 2.1 1.5 140 SOUTH PASS 9040 1.7 2.2 77 2.7 1.8 150 ST. LAWRENCE ALT 8620 2.0 .7 286* 2.4 1.4 171 TOGWOTEE PASS 9580 2.2 1.9 116* 2.0 2.1 95 TOWNSEND CREEK 8700 1.9 .8 238* 2.9 1.6 181 ----- ----- Basin wide percent of average 148* 144 BIGHORN BASIN BALD MTN. 9375 2.7 2.2 123* 2.8 1.9 147 BEAR TRAP MEADOW 7900 .5 .6 83* 1.5 1.3 115 BLACKWATER 9780 2.6 2.1 124* 2.6 2.0 130 BONE SPRINGS DIV 9350 2.3 2.4 96 2.7 1.8 150 EVENING STAR 9200 1.9 3.2 59 3.3 2.4 138 GRAVE SPRINGS 8550 .7 -M * 1.7 1.6 106 KIRWIN 9550 -M 1.3 * -M 1.3 * LOST CREEK 8080 -M 1.1 * -M 1.7 * MARQUETTE 8760 3.8 .9 422* 4.2 1.5 280 MIDDLE POWDER 7760 .8 1.1 73* 1.8 1.8 100 OWL CREEK 8975 1.3 .5 260 1.6 .8 200 POWDER RIVER PASS 9480 .4 1.0 40* 1.3 1.6 81 SHELL CREEK 9580 2.1 2.2 95 1.6 1.6 100 SYLVAN LAKE 8420 1.8 2.1 86* -M 2.2 * SYLVAN ROAD 8120 .2 1.3 15 2.0 1.8 111 TIMBER CREEK 7950 2.3 .2 1150* 3.1 1.1 282 YOUNTS PEAK 8350 2.2 1.9 116 1.5 1.6 94 ----- ----- Basin wide percent of average 115* 139 SHOSHONE RIVER BLACKWATER 9780 2.6 2.1 124* 2.6 2.0 130 EVENING STAR 9200 1.9 3.2 59 3.3 2.4 138 KIRWIN 9550 -M 1.3 * -M 1.3 * MARQUETTE 8760 3.8 .9 422* 4.2 1.5 280 SYLVAN LAKE 8420 1.8 2.1 86* -M 2.2 * SYLVAN ROAD 8120 .2 1.3 15 2.0 1.8 111 YOUNTS PEAK 8350 2.2 1.9 116 1.5 1.6 94 ----- ----- Basin wide percent of average 109* 146 POWDER-TONGUE BEAR TRAP MEADOW 7900 .5 .6 83* 1.5 1.3 115 BONE SPRINGS DIV 9350 2.3 2.4 96 2.7 1.8 150 BURGESS JUNCTION 7880 .9 1.3 69* 2.3 1.7 135 CLOUD PEAK RESERVOIR 9860 1.1 1.1 100* 3.1 1.8 172 DOME LAKE 8880 1.9 1.6 119 2.9 1.9 153 GRAVE SPRINGS 8550 .7 -M * 1.7 1.6 106 HANSEN SAWMILL 8760 1.1 .7 157* 2.0 1.3 154 LOST CREEK 8080 -M 1.1 * -M 1.7 * MIDDLE POWDER 7760 .8 1.1 73* 1.8 1.8 100 POWDER RIVER PASS 9480 .4 1.0 40* 1.3 1.6 81 SUCKER CREEK 8880 1.4 1.0 140* 3.1 1.8 172 TIE CREEK 6870 1.6 -M * 2.9 1.6 181 ----- ----- Basin wide percent of average 96* 139 BELLE FOURCHE BLIND PARK 6890 .4 1.4 29 1.6 1.5 107 NORTH RAPID CREEK 6130 .6 -M * 1.1 -M * WARREN PEAK 6520 .4 1.4 29 1.8 1.2 150 ----- ----- Basin wide percent of average 29 126 UPPER N. PLATTE RIVER COLUMBINE 9400 .7 1.3 54* 3.0 2.1 143 DIVIDE PEAK 8800 1.6 1.7 94* 3.1 2.6 119 ELK RIVER 8700 .5 .3 167* 2.8 1.9 147 JOE WRIGHT 10120 2.3 2.5 92 4.3 2.9 148 NORTH FRENCH CREEK 10100 1.8 1.7 106* 3.3 1.9 174 OLD BATTLE 10000 3.1 3.1 100* 4.6 2.7 170 SOUTH BRUSH CREEK 8400 .2 .3 67* 1.7 1.9 89 TOWER 10500 4.0 4.9 82* 14.6 3.4 429 WEBBER SPRINGS 9200 1.6 1.5 107* 3.8 2.5 152 WILLOW CREEK PASS 9540 1.7 .8 212* 1.7 1.5 113 ----- ----- Basin wide percent of average 97* 183 LOWER N. PLATTE - SWEETWATER - LARAMIE BROOKLYN LAKE 10240 1.3 1.6 81* 2.7 2.0 135 CASPER MTN. 7900 2.6 1.0 260* 2.6 2.1 124 DEADMAN HILL 10220 3.3 1.1 300* 2.8 2.0 140 DEER PARK 9700 .0 -M * .0 -M * LAPRELE CREEK 8320 1.1 .7 157* 2.0 1.3 154 RENO HILL 8400 1.7 1.4 121* 2.1 2.1 100 ROACH 9700 1.6 1.1 145* 2.7 2.3 117 SAND LAKE 10080 3.4 2.5 136* 4.6 2.2 209 SOUTH PASS 9040 1.7 2.2 77 2.7 1.8 150 WINDY PEAK 7840 1.0 .1 1000* 1.9 1.0 190 ----- ----- Basin wide percent of average 151* 143 LITTLE SNAKE RIVER BATTLE MOUNTAIN 7440 .0 .3 0* 3.2 1.5 213 DIVIDE PEAK 8800 1.6 1.7 94* 3.1 2.6 119 OLD BATTLE 10000 3.1 3.1 100* 4.6 2.7 170 SANDSTONE RS 8150 .3 .6 50* 3.0 1.4 214 WHISKEY PARK 8950 1.3 1.8 72* 3.6 1.6 225 ----- ----- Basin wide percent of average 84* 179 UPPER GREEN RIVER BIG SANDY OPENING 9100 1.3 .5 260* 1.2 1.3 92 BLIND BULL SUM 8650 .6 1.6 38* 1.3 1.7 76 EAST RIM DIVIDE 7930 .3 .3 100* .4 1.3 31 ELKHART PARK G.S. 9400 .6 .7 86* 1.5 1.3 115 GROS VENTRE SUMMIT 8775 2.6 .8 325* 1.1 1.3 85 KENDALL R.S. 7740 .2 .0 * .8 1.3 62 LOOMIS PARK 8240 .2 .4 50* .7 1.5 47 NEW FORK LAKE 8340 .5 .0 * .9 1.2 75 SNIDER BASIN 8250 .0 .0 100* .5 1.3 38 SPRING CREEK DIVIDE 9000 .4 1.0 40* 1.4 1.8 78 TRIPLE PEAK 8500 .8 .7 114* 1.4 2.3 61 ----- ----- Basin wide percent of average 113* 69 LOWER GREEN RIVER HAMS FORK 7840 .3 .0 * .8 1.1 73 HEWINTA 9500 1.4 .2 700* 3.4 2.0 170 HICKERSON PARK 9150 3.1 .1 3100* 3.8 1.8 211 HOLE-IN-ROCK 9150 1.4 .1 1400* 3.3 1.8 183 INDIAN CREEK 9425 1.2 1.2 100* 1.2 1.9 63 KELLEY R.S. 8180 .4 .4 100* 1.1 1.5 73 STEEL CREEK PARK 10100 .9 1.6 56* 3.8 2.0 190 ----- ----- Basin wide percent of average 233* 144 UPPER BEAR RIVER BUG LAKE 7950 .7 1.0 70* 1.9 2.8 68 HAYDEN FORK 9400 .3 .7 43* 2.6 2.1 124 KELLEY R.S. 8180 .4 .4 100* 1.1 1.5 73 LILY LAKE 9050 .8 .8 100* 2.8 2.3 122 MONTE CRISTO 8960 1.1 1.2 92* 2.3 2.9 79 SALT RIVER SUMMIT 7600 .3 .0 * 2.0 1.4 143 TRIAL LAKE 9960 .8 1.5 53* 2.2 2.4 92 ----- ----- Basin wide percent of average 73* 97 ----------------------------------------------------------------------------- -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.