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 31 , 1997 ----------------------------------------------------------------------------- BASIN ELEV. SNOW WATER EQUIVALENT TOTAL PRECIPITATION Data Site Name (Ft) % % Current Average Avg Current Average Avg ----------------------------------------------------------------------------- WYOMING SNAKE RIVER BASE CAMP 7030 .5 .7 71* 2.4 1.9 126 COTTONWOOD CREEK 7600 1.2 .7 171* 2.8 2.1 133 GRANITE CREEK 6770 .5 .6 83* 1.8 2.2 82 GRASSY LAKE 7265 1.5 1.0 150* 3.6 3.2 112 GROS VENTRE SUMMIT 8775 -M 1.0 * 1.3 1.5 87 LEWIS LAKE DIVIDE 7860 2.0 1.3 154* 3.5 3.3 106 PHILLIPS BENCH 8200 1.4 1.1 127* 2.3 2.5 92 SALT RIVER SUMMIT 7600 .3 .0 * 2.6 1.6 162 SNAKE RIVER STATION 6920 -M .6 * -M 2.2 * SPRING CREEK DIVIDE 9000 .9 1.3 69* 1.9 2.0 95 THUMB DIVIDE 7980 -M .5 * -M 1.8 * TOGWOTEE PASS 9580 3.1 2.2 141* 2.8 2.4 117 TWO OCEAN PLATEAU 9360 4.4 3.4 129 4.3 2.7 159 WILLOW CREEK 8450 1.3 1.1 118* 4.1 2.7 152 ----- ----- Basin wide percent of average 125* 119 UPPER YELLOWSTONE-MADISON BEARTOOTH LAKE 9275 -M 2.9 * 2.7 1.8 150 BLACK BEAR 7950 3.6 2.6 138* 4.3 3.4 126 CANYON 7940 1.8 .8 225* 2.9 1.7 171 FISHER CREEK 9100 4.7 2.5 188* 4.4 2.9 152 MADISON PLATEAU 7750 1.9 1.4 136* 3.2 2.4 133 NORTHEAST ENTRANCE 7350 .2 .3 67* -M 1.5 * PARKER PEAK 9400 3.0 3.6 83 2.9 2.1 138 SYLVAN LAKE 8420 2.5 2.4 104 -M 2.5 * THUMB DIVIDE 7980 -M .5 * -M 1.8 * TWO OCEAN PLATEAU 9360 4.4 3.4 129 4.3 2.7 159 WHISKEY CREEK 6800 .8 .8 100* 2.4 2.1 114 WHITE MILL 8700 -M 1.8 * -M 2.6 * WOLVERINE 7650 .4 .3 133* 2.3 1.5 153 ----- ----- Basin wide percent of average 129* 143 WIND RIVER BURROUGHS CREEK 8750 1.9 .9 211* 2.3 1.5 153 COLD SPRINGS 9630 1.9 .9 211* 2.5 1.8 139 DEER PARK 9700 .0 -M * .0 -M * HOBBS PARK 10100 2.6 2.0 130 2.8 1.9 147 LITTLE WARM 9620 1.4 1.0 140* 2.6 1.7 153 SOUTH PASS 9040 1.7 2.5 68 2.7 2.1 129 ST. LAWRENCE ALT 8620 1.9 .8 238 2.4 1.6 150 TOGWOTEE PASS 9580 3.1 2.2 141* 2.8 2.4 117 TOWNSEND CREEK 8700 1.9 1.0 190* 3.1 1.8 172 ----- ----- Basin wide percent of average 145* 143 BIGHORN BASIN BALD MTN. 9375 3.2 2.5 128 3.0 2.2 136 BEAR TRAP MEADOW 7900 .6 .7 86* 1.6 1.5 107 BLACKWATER 9780 -M 2.4 * 3.3 2.3 143 BONE SPRINGS DIV 9350 -M 2.6 * 3.6 2.1 171 EVENING STAR 9200 -M 3.7 * 4.8 2.8 171 GRAVE SPRINGS 8550 .7 -M * 1.8 1.8 100 KIRWIN 9550 2.3 1.5 153 2.5 1.5 167 LOST CREEK 8080 -M 1.3 * -M 1.9 * MARQUETTE 8760 3.8 1.0 380 4.3 1.7 253 MIDDLE POWDER 7760 .8 1.3 62* 1.8 2.0 90 OWL CREEK 8975 1.5 .5 300 1.8 1.0 180 POWDER RIVER PASS 9480 .6 1.2 50* 1.5 1.8 83 SHELL CREEK 9580 2.6 2.4 108 1.9 1.8 106 SYLVAN LAKE 8420 2.5 2.4 104 -M 2.5 * SYLVAN ROAD 8120 .5 1.5 33 2.7 2.1 129 TIMBER CREEK 7950 2.2 .3 733* 3.1 1.3 238 YOUNTS PEAK 8350 3.0 2.2 136 2.5 1.8 139 ----- ----- Basin wide percent of average 135* 145 SHOSHONE RIVER BLACKWATER 9780 -M 2.4 * 3.3 2.3 143 EVENING STAR 9200 -M 3.7 * 4.8 2.8 171 KIRWIN 9550 2.3 1.5 153 2.5 1.5 167 MARQUETTE 8760 3.8 1.0 380 4.3 1.7 253 SYLVAN LAKE 8420 2.5 2.4 104 -M 2.5 * SYLVAN ROAD 8120 .5 1.5 33 2.7 2.1 129 YOUNTS PEAK 8350 3.0 2.2 136 2.5 1.8 139 ----- ----- Basin wide percent of average 141 165 POWDER-TONGUE BEAR TRAP MEADOW 7900 .6 .7 86* 1.6 1.5 107 BONE SPRINGS DIV 9350 -M 2.6 * 3.6 2.1 171 BURGESS JUNCTION 7880 1.1 1.5 73 2.5 1.9 132 CLOUD PEAK RESERVOIR 9860 1.2 1.3 92* 3.3 2.0 165 DOME LAKE 8880 2.1 1.8 117 3.0 2.2 136 GRAVE SPRINGS 8550 .7 -M * 1.8 1.8 100 HANSEN SAWMILL 8760 1.1 .8 138 2.0 1.5 133 LOST CREEK 8080 -M 1.3 * -M 1.9 * MIDDLE POWDER 7760 .8 1.3 62* 1.8 2.0 90 POWDER RIVER PASS 9480 .6 1.2 50* 1.5 1.8 83 SUCKER CREEK 8880 1.5 1.2 125* 3.3 2.1 157 TIE CREEK 6870 1.3 -M * 3.0 1.8 167 ----- ----- Basin wide percent of average 92* 132 BELLE FOURCHE BLIND PARK 6890 .2 1.6 12 1.6 1.7 94 NORTH RAPID CREEK 6130 .5 -M * 1.3 -M * WARREN PEAK 6520 .1 1.6 6 2.0 1.4 143 ----- ----- Basin wide percent of average 9 116 UPPER N. PLATTE RIVER COLUMBINE 9400 .9 1.5 60* 3.7 2.4 154 DIVIDE PEAK 8800 1.6 2.0 80* 3.5 3.0 117 ELK RIVER 8700 .7 .4 175* 3.1 2.2 141 JOE WRIGHT 10120 2.2 3.0 73 4.3 3.4 126 NORTH FRENCH CREEK 10100 3.3 2.1 157* 3.9 2.2 177 OLD BATTLE 10000 3.3 3.5 94* 5.1 3.1 165 SOUTH BRUSH CREEK 8400 .4 .4 100* 1.9 2.2 86 TOWER 10500 4.8 5.8 83 -M 3.9 * WEBBER SPRINGS 9200 1.7 1.8 94* 4.1 2.9 141 WILLOW CREEK PASS 9540 1.7 1.0 170* 2.4 1.7 141 ----- ----- Basin wide percent of average 96* 139 LOWER N. PLATTE - SWEETWATER - LARAMIE BROOKLYN LAKE 10240 1.7 1.8 94* 3.1 2.3 135 CASPER MTN. 7900 2.5 1.2 208* 2.7 2.4 113 DEADMAN HILL 10220 3.6 1.3 277* 3.0 2.3 130 DEER PARK 9700 .0 -M * .0 -M * LAPRELE CREEK 8320 1.1 .9 122* 2.1 1.5 140 RENO HILL 8400 1.7 1.6 106 2.1 2.4 88 ROACH 9700 1.6 1.3 123* 2.9 2.6 112 SAND LAKE 10080 4.2 3.0 140* 4.8 2.5 192 SOUTH PASS 9040 1.7 2.5 68 2.7 2.1 129 WINDY PEAK 7840 .9 .2 450* 2.0 1.2 167 ----- ----- Basin wide percent of average 138* 132 LITTLE SNAKE RIVER BATTLE MOUNTAIN 7440 .0 .4 0* 3.2 1.7 188 DIVIDE PEAK 8800 1.6 2.0 80* 3.5 3.0 117 OLD BATTLE 10000 3.3 3.5 94* 5.1 3.1 165 SANDSTONE RS 8150 .1 .8 12* 3.1 1.6 194 WHISKEY PARK 8950 1.4 2.2 64* 4.1 1.8 228 ----- ----- Basin wide percent of average 72* 170 UPPER GREEN RIVER BIG SANDY OPENING 9100 1.4 .7 200* 2.0 1.5 133 BLIND BULL SUM 8650 1.4 2.2 64* 1.8 1.9 95 EAST RIM DIVIDE 7930 .6 .4 150* .7 1.5 47 ELKHART PARK G.S. 9400 1.1 .9 122* 1.8 1.5 120 GROS VENTRE SUMMIT 8775 -M 1.0 * 1.3 1.5 87 KENDALL R.S. 7740 .8 .0 * 1.7 1.5 113 LOOMIS PARK 8240 .6 .5 120* 1.2 1.7 71 NEW FORK LAKE 8340 1.0 .0 * 1.3 1.4 93 SNIDER BASIN 8250 .5 .0 * .9 1.5 60 SPRING CREEK DIVIDE 9000 .9 1.3 69* 1.9 2.0 95 TRIPLE PEAK 8500 1.7 .9 189* 2.1 2.7 78 ----- ----- Basin wide percent of average 112* 89 LOWER GREEN RIVER HAMS FORK 7840 .4 .0 * .8 1.3 62 HEWINTA 9500 1.4 .2 700* 3.3 2.3 143 HICKERSON PARK 9150 2.8 .2 1400* 3.9 2.0 195 HOLE-IN-ROCK 9150 1.4 .1 1400* 3.1 2.0 155 INDIAN CREEK 9425 1.7 1.6 106* 1.6 2.2 73 KELLEY R.S. 8180 .8 .5 160* 1.5 1.7 88 STEEL CREEK PARK 10100 1.6 1.9 84 4.4 2.3 191 ----- ----- Basin wide percent of average 216* 135 UPPER BEAR RIVER BUG LAKE 7950 .7 1.1 64* 2.0 3.2 62 HAYDEN FORK 9400 .0 .9 0* 2.7 2.4 113 KELLEY R.S. 8180 .8 .5 160* 1.5 1.7 88 LILY LAKE 9050 .8 1.0 80* 2.7 2.6 104 MONTE CRISTO 8960 1.1 1.4 79* 2.4 3.4 71 SALT RIVER SUMMIT 7600 .3 .0 * 2.6 1.6 162 TRIAL LAKE 9960 .9 1.8 50* 2.1 2.8 75 ----- ----- Basin wide percent of average 64* 90 ----------------------------------------------------------------------------- -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.