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: NOVEMBER 1 , 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* 2.5 2.0 125 COTTONWOOD CREEK 7600 1.2 .7 171* 2.9 2.2 132 GRANITE CREEK 6770 .2 .6 33* 2.3 2.3 100 GRASSY LAKE 7265 1.6 1.1 145* 3.8 3.3 115 GROS VENTRE SUMMIT 8775 -M 1.1 * 1.4 1.6 88 LEWIS LAKE DIVIDE 7860 2.0 1.4 143* 3.5 3.4 103 PHILLIPS BENCH 8200 1.5 1.2 125* 2.4 2.6 92 SALT RIVER SUMMIT 7600 .1 .0 * 2.2 1.7 129 SNAKE RIVER STATION 6920 -M .6 * -M 2.3 * SPRING CREEK DIVIDE 9000 1.1 1.4 79* 2.2 2.1 105 THUMB DIVIDE 7980 -M .5 * -M 1.9 * TOGWOTEE PASS 9580 3.2 2.3 139* 3.1 2.5 124 TWO OCEAN PLATEAU 9360 4.7 3.5 134 4.7 2.8 168 WILLOW CREEK 8450 1.1 1.2 92* 4.3 2.8 154 ----- ----- Basin wide percent of average 121* 120 UPPER YELLOWSTONE-MADISON BEARTOOTH LAKE 9275 3.8 3.0 127 2.9 1.9 153 BLACK BEAR 7950 3.8 2.7 141* 4.4 3.5 126 CANYON 7940 1.7 .8 212* 3.0 1.8 167 FISHER CREEK 9100 5.1 2.6 196* 4.8 3.0 160 MADISON PLATEAU 7750 1.8 1.5 120* 3.3 2.5 132 NORTHEAST ENTRANCE 7350 .1 .3 33* 3.5 1.5 233 PARKER PEAK 9400 3.3 3.7 89 3.2 2.2 145 SYLVAN LAKE 8420 2.7 2.5 108 -M 2.6 * THUMB DIVIDE 7980 -M .5 * -M 1.9 * TWO OCEAN PLATEAU 9360 4.7 3.5 134 4.7 2.8 168 WHISKEY CREEK 6800 .6 .8 75* 2.5 2.2 114 WHITE MILL 8700 -M 1.9 * 5.0 2.7 185 WOLVERINE 7650 .1 .3 33* 2.3 1.6 144 ----- ----- Basin wide percent of average 128* 154 WIND RIVER BURROUGHS CREEK 8750 1.9 .9 211* 2.5 1.6 156 COLD SPRINGS 9630 1.9 .9 211 2.6 1.9 137 DEER PARK 9700 .0 -M * .0 -M * HOBBS PARK 10100 2.8 2.1 133 3.0 2.0 150 LITTLE WARM 9620 1.3 1.0 130* 2.7 1.8 150 SOUTH PASS 9040 2.4 2.6 92 3.6 2.2 164 ST. LAWRENCE ALT 8620 2.2 .8 275 2.5 1.7 147 TOGWOTEE PASS 9580 3.2 2.3 139* 3.1 2.5 124 TOWNSEND CREEK 8700 1.9 1.0 190* 2.9 1.9 153 ----- ----- Basin wide percent of average 152* 147 BIGHORN BASIN BALD MTN. 9375 3.9 2.6 150 3.6 2.3 157 BEAR TRAP MEADOW 7900 .7 .7 100* 1.4 1.6 88 BLACKWATER 9780 4.3 2.5 172* 3.4 2.4 142 BONE SPRINGS DIV 9350 3.7 2.7 137 4.1 2.2 186 EVENING STAR 9200 -M 3.8 * 5.4 2.9 186 GRAVE SPRINGS 8550 1.1 -M * 2.1 1.9 111 KIRWIN 9550 2.6 1.5 173 2.9 1.6 181 LOST CREEK 8080 -M 1.3 * -M 2.0 * MARQUETTE 8760 3.8 1.0 380 4.3 1.8 239 MIDDLE POWDER 7760 .9 1.3 69* 1.9 2.1 90 OWL CREEK 8975 1.6 .5 320 1.7 1.0 170 POWDER RIVER PASS 9480 .9 1.2 75 1.6 1.9 84 SHELL CREEK 9580 2.9 2.5 116 2.2 1.9 116 SYLVAN LAKE 8420 2.7 2.5 108 -M 2.6 * SYLVAN ROAD 8120 .4 1.6 25 3.3 2.2 150 TIMBER CREEK 7950 2.3 .3 767* 3.1 1.3 238 YOUNTS PEAK 8350 3.1 2.3 135 2.9 1.9 153 ----- ----- Basin wide percent of average 146 151 SHOSHONE RIVER BLACKWATER 9780 4.3 2.5 172* 3.4 2.4 142 EVENING STAR 9200 -M 3.8 * 5.4 2.9 186 KIRWIN 9550 2.6 1.5 173 2.9 1.6 181 MARQUETTE 8760 3.8 1.0 380 4.3 1.8 239 SYLVAN LAKE 8420 2.7 2.5 108 -M 2.6 * SYLVAN ROAD 8120 .4 1.6 25 3.3 2.2 150 YOUNTS PEAK 8350 3.1 2.3 135 2.9 1.9 153 ----- ----- Basin wide percent of average 148 173 POWDER-TONGUE BEAR TRAP MEADOW 7900 .7 .7 100* 1.4 1.6 88 BONE SPRINGS DIV 9350 3.7 2.7 137 4.1 2.2 186 BURGESS JUNCTION 7880 1.2 1.6 75 2.7 2.0 135 CLOUD PEAK RESERVOIR 9860 1.4 1.3 108* 3.6 2.1 171 DOME LAKE 8880 2.3 1.9 121 3.4 2.3 148 GRAVE SPRINGS 8550 1.1 -M * 2.1 1.9 111 HANSEN SAWMILL 8760 1.1 .8 138 2.1 1.6 131 LOST CREEK 8080 -M 1.3 * -M 2.0 * MIDDLE POWDER 7760 .9 1.3 69* 1.9 2.1 90 POWDER RIVER PASS 9480 .9 1.2 75 1.6 1.9 84 SUCKER CREEK 8880 1.8 1.2 150* 3.3 2.2 150 TIE CREEK 6870 1.2 -M * 3.2 1.9 168 ----- ----- Basin wide percent of average 110* 135 BELLE FOURCHE BLIND PARK 6890 .6 1.6 38 2.0 1.8 111 NORTH RAPID CREEK 6130 .7 -M * 1.4 -M * WARREN PEAK 6520 .1 1.6 6 1.8 1.4 129 ----- ----- Basin wide percent of average 22 119 UPPER N. PLATTE RIVER COLUMBINE 9400 1.3 1.6 81* 3.7 2.5 148 DIVIDE PEAK 8800 1.5 2.1 71* 3.3 3.1 106 ELK RIVER 8700 .8 .4 200* 3.1 2.3 135 JOE WRIGHT 10120 2.4 3.1 77 4.6 3.5 131 NORTH FRENCH CREEK 10100 -M 2.2 * 3.9 2.3 170 OLD BATTLE 10000 3.2 3.6 89* 5.0 3.2 156 SOUTH BRUSH CREEK 8400 .3 .4 75* 1.9 2.3 83 TOWER 10500 5.3 6.0 88 5.8 4.0 145 WEBBER SPRINGS 9200 1.5 1.9 79* 4.1 3.0 137 WILLOW CREEK PASS 9540 1.9 1.1 173* 2.4 1.8 133 ----- ----- Basin wide percent of average 90* 135 LOWER N. PLATTE - SWEETWATER - LARAMIE BROOKLYN LAKE 10240 1.6 1.9 84* 3.1 2.4 129 CASPER MTN. 7900 2.9 1.3 223* 3.1 2.5 124 DEADMAN HILL 10220 3.7 1.4 264* 3.1 2.4 129 DEER PARK 9700 .0 -M * .0 -M * LAPRELE CREEK 8320 1.2 .9 133* 2.2 1.5 147 RENO HILL 8400 1.9 1.7 112 2.3 2.5 92 ROACH 9700 1.8 1.4 129* 3.1 2.7 115 SAND LAKE 10080 4.2 3.1 135* 4.8 2.6 185 SOUTH PASS 9040 2.4 2.6 92 3.6 2.2 164 WINDY PEAK 7840 .8 .2 400* 1.9 1.2 158 ----- ----- Basin wide percent of average 141* 136 LITTLE SNAKE RIVER BATTLE MOUNTAIN 7440 .0 .4 0* 3.2 1.8 178 DIVIDE PEAK 8800 1.5 2.1 71* 3.3 3.1 106 OLD BATTLE 10000 3.2 3.6 89* 5.0 3.2 156 SANDSTONE RS 8150 .0 .8 0* 3.2 1.7 188 WHISKEY PARK 8950 1.5 2.3 65* 4.1 1.9 216 ----- ----- Basin wide percent of average 67* 161 UPPER GREEN RIVER BIG SANDY OPENING 9100 1.6 .7 229* 2.3 1.6 144 BLIND BULL SUM 8650 1.7 2.3 74* 2.1 2.0 105 EAST RIM DIVIDE 7930 .6 .4 150* .9 1.5 60 ELKHART PARK G.S. 9400 1.2 1.0 120* 2.1 1.6 131 GROS VENTRE SUMMIT 8775 -M 1.1 * 1.4 1.6 88 KENDALL R.S. 7740 1.0 .0 * 2.3 1.5 153 LOOMIS PARK 8240 1.1 .5 220* 1.7 1.8 94 NEW FORK LAKE 8340 1.2 .0 * 1.3 1.4 93 SNIDER BASIN 8250 .5 .0 * 1.1 1.5 73 SPRING CREEK DIVIDE 9000 1.1 1.4 79* 2.2 2.1 105 TRIPLE PEAK 8500 2.1 1.0 210* 2.5 2.8 89 ----- ----- Basin wide percent of average 129* 103 LOWER GREEN RIVER HAMS FORK 7840 .1 .0 * 1.1 1.3 85 HEWINTA 9500 1.6 .2 800* 3.6 2.4 150 HICKERSON PARK 9150 2.8 .2 1400* 3.8 2.1 181 HOLE-IN-ROCK 9150 1.3 .1 1300* 3.3 2.1 157 INDIAN CREEK 9425 1.7 1.7 100* 1.4 2.3 61 KELLEY R.S. 8180 .7 .5 140* 1.4 1.8 78 STEEL CREEK PARK 10100 1.7 2.0 85 4.4 2.4 183 ----- ----- Basin wide percent of average 209* 132 UPPER BEAR RIVER BUG LAKE 7950 .5 1.1 45* 2.1 3.3 64 HAYDEN FORK 9400 .3 .9 33* 3.3 2.5 132 KELLEY R.S. 8180 .7 .5 140* 1.4 1.8 78 LILY LAKE 9050 1.0 1.0 100* 3.0 2.7 111 MONTE CRISTO 8960 .9 1.4 64* 2.6 3.5 74 SALT RIVER SUMMIT 7600 .1 .0 * 2.2 1.7 129 TRIAL LAKE 9960 1.5 1.9 79* 2.7 2.9 93 ----- ----- Basin wide percent of average 72* 94 ----------------------------------------------------------------------------- -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.