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 SUNDAY: NOVEMBER 2 , 1997 ----------------------------------------------------------------------------- BASIN ELEV. SNOW WATER EQUIVALENT TOTAL PRECIPITATION Data Site Name (Ft) % % Current Average Avg Current Average Avg ----------------------------------------------------------------------------- WYOMING SNAKE RIVER BASE CAMP 7030 .4 .8 50* 2.6 2.2 118 COTTONWOOD CREEK 7600 1.3 .8 162* 3.0 2.4 125 GRANITE CREEK 6770 .2 .7 29* 2.3 2.5 92 GRASSY LAKE 7265 1.6 1.3 123* 3.9 3.5 111 GROS VENTRE SUMMIT 8775 -M 1.2 * 1.4 1.7 82 LEWIS LAKE DIVIDE 7860 2.1 1.6 131* 3.5 3.6 97 PHILLIPS BENCH 8200 1.4 1.3 108* 2.5 2.8 89 SALT RIVER SUMMIT 7600 .2 .1 200* 2.0 1.8 111 SNAKE RIVER STATION 6920 -M .7 * -M 2.5 * SPRING CREEK DIVIDE 9000 1.1 1.6 69* 2.2 2.3 96 THUMB DIVIDE 7980 -M .6 * -M 2.0 * TOGWOTEE PASS 9580 3.2 2.4 133* 3.1 2.7 115 TWO OCEAN PLATEAU 9360 4.7 3.6 131 4.7 3.0 157 WILLOW CREEK 8450 1.1 1.4 79* 4.3 3.0 143 ----- ----- Basin wide percent of average 111* 113 UPPER YELLOWSTONE-MADISON BEARTOOTH LAKE 9275 3.6 3.1 116 2.9 2.0 145 BLACK BEAR 7950 3.8 2.9 131* 4.3 3.7 116 CANYON 7940 1.8 .9 200* 3.0 1.9 158 FISHER CREEK 9100 5.3 2.8 189* 4.9 3.2 153 MADISON PLATEAU 7750 1.8 1.6 112* 3.3 2.6 127 NORTHEAST ENTRANCE 7350 .1 .4 25* 3.5 1.6 219 PARKER PEAK 9400 3.4 3.8 89 3.4 2.3 148 SYLVAN LAKE 8420 2.7 2.6 104 -M 2.7 * THUMB DIVIDE 7980 -M .6 * -M 2.0 * TWO OCEAN PLATEAU 9360 4.7 3.6 131 4.7 3.0 157 WHISKEY CREEK 6800 .6 .9 67* 2.5 2.3 109 WHITE MILL 8700 5.0 2.0 250* 5.1 2.9 176 WOLVERINE 7650 .1 .4 25* 2.4 1.7 141 ----- ----- Basin wide percent of average 132* 147 WIND RIVER BURROUGHS CREEK 8750 1.9 1.0 190* 2.6 1.7 153 COLD SPRINGS 9630 1.9 1.0 190 2.6 2.0 130 DEER PARK 9700 .0 -M * .0 -M * HOBBS PARK 10100 2.8 2.2 127 3.1 2.1 148 LITTLE WARM 9620 1.3 1.1 118* 2.7 1.9 142 SOUTH PASS 9040 2.4 2.7 89 3.6 2.3 157 ST. LAWRENCE ALT 8620 2.2 .8 275 2.5 1.8 139 TOGWOTEE PASS 9580 3.2 2.4 133* 3.1 2.7 115 TOWNSEND CREEK 8700 1.7 1.1 155 2.9 2.0 145 ----- ----- Basin wide percent of average 141 140 BIGHORN BASIN BALD MTN. 9375 4.3 2.7 159 3.9 2.4 163 BEAR TRAP MEADOW 7900 .7 .8 88 1.4 1.7 82 BLACKWATER 9780 4.3 2.6 165 3.4 2.5 136 BONE SPRINGS DIV 9350 3.8 2.8 136 4.2 2.3 183 EVENING STAR 9200 4.1 4.0 102 5.5 3.0 183 GRAVE SPRINGS 8550 1.3 -M * 2.2 2.0 110 KIRWIN 9550 2.5 1.6 156 2.9 1.7 171 LOST CREEK 8080 -M 1.4 * -M 2.1 * MARQUETTE 8760 3.7 1.0 370 4.2 1.9 221 MIDDLE POWDER 7760 .9 1.4 64* 1.9 2.2 86 OWL CREEK 8975 1.5 .5 300 1.7 1.0 170 POWDER RIVER PASS 9480 1.1 1.3 85 1.8 2.0 90 SHELL CREEK 9580 3.2 2.6 123 2.4 2.0 120 SYLVAN LAKE 8420 2.7 2.6 104 -M 2.7 * SYLVAN ROAD 8120 .4 1.7 24 3.4 2.3 148 TIMBER CREEK 7950 2.4 .3 800* 3.2 1.3 246 YOUNTS PEAK 8350 3.1 2.4 129 2.9 2.0 145 ----- ----- Basin wide percent of average 137 149 SHOSHONE RIVER BLACKWATER 9780 4.3 2.6 165 3.4 2.5 136 EVENING STAR 9200 4.1 4.0 102 5.5 3.0 183 KIRWIN 9550 2.5 1.6 156 2.9 1.7 171 MARQUETTE 8760 3.7 1.0 370 4.2 1.9 221 SYLVAN LAKE 8420 2.7 2.6 104 -M 2.7 * SYLVAN ROAD 8120 .4 1.7 24 3.4 2.3 148 YOUNTS PEAK 8350 3.1 2.4 129 2.9 2.0 145 ----- ----- Basin wide percent of average 131 166 POWDER-TONGUE BEAR TRAP MEADOW 7900 .7 .8 88 1.4 1.7 82 BONE SPRINGS DIV 9350 3.8 2.8 136 4.2 2.3 183 BURGESS JUNCTION 7880 1.2 1.7 71 2.8 2.1 133 CLOUD PEAK RESERVOIR 9860 1.6 1.4 114* 3.6 2.2 164 DOME LAKE 8880 2.4 2.0 120 3.6 2.4 150 GRAVE SPRINGS 8550 1.3 -M * 2.2 2.0 110 HANSEN SAWMILL 8760 1.1 .8 138 2.2 1.6 138 LOST CREEK 8080 -M 1.4 * -M 2.1 * MIDDLE POWDER 7760 .9 1.4 64* 1.9 2.2 86 POWDER RIVER PASS 9480 1.1 1.3 85 1.8 2.0 90 SUCKER CREEK 8880 2.0 1.2 167* 3.4 2.3 148 TIE CREEK 6870 1.1 -M * 3.3 2.0 165 ----- ----- Basin wide percent of average 110 133 BELLE FOURCHE BLIND PARK 6890 1.1 1.7 65 2.5 1.8 139 NORTH RAPID CREEK 6130 .9 -M * 1.6 -M * WARREN PEAK 6520 .4 1.7 24 2.1 1.4 150 ----- ----- Basin wide percent of average 44 144 UPPER N. PLATTE RIVER COLUMBINE 9400 1.4 1.7 82* 3.6 2.6 138 DIVIDE PEAK 8800 1.5 2.2 68 3.3 3.2 103 ELK RIVER 8700 .5 .5 100* 3.1 2.4 129 JOE WRIGHT 10120 2.6 3.2 81 4.7 3.6 131 NORTH FRENCH CREEK 10100 2.9 2.4 121* 4.0 2.4 167 OLD BATTLE 10000 3.1 3.8 82* 4.9 3.4 144 SOUTH BRUSH CREEK 8400 .2 .5 40* 1.9 2.4 79 TOWER 10500 5.5 6.3 87 5.9 4.2 140 WEBBER SPRINGS 9200 1.5 2.1 71* 4.1 3.2 128 WILLOW CREEK PASS 9540 2.0 1.2 167* 2.3 1.9 121 ----- ----- Basin wide percent of average 89* 129 LOWER N. PLATTE - SWEETWATER - LARAMIE BROOKLYN LAKE 10240 1.6 2.1 76* 3.2 2.5 128 CASPER MTN. 7900 2.8 1.4 200* 3.1 2.6 119 DEADMAN HILL 10220 3.7 1.5 247* 3.2 2.5 128 DEER PARK 9700 .0 -M * .0 -M * LAPRELE CREEK 8320 1.3 1.0 130* 2.2 1.6 138 RENO HILL 8400 1.9 1.8 106 2.3 2.6 88 ROACH 9700 1.8 1.5 120* 3.2 2.8 114 SAND LAKE 10080 4.2 3.3 127* 4.8 2.7 178 SOUTH PASS 9040 2.4 2.7 89 3.6 2.3 157 WINDY PEAK 7840 .8 .3 267* 2.0 1.2 167 ----- ----- Basin wide percent of average 131* 133 LITTLE SNAKE RIVER BATTLE MOUNTAIN 7440 .0 .5 0* 3.2 1.9 168 DIVIDE PEAK 8800 1.5 2.2 68 3.3 3.2 103 OLD BATTLE 10000 3.1 3.8 82* 4.9 3.4 144 SANDSTONE RS 8150 .0 .9 0* 3.1 1.8 172 WHISKEY PARK 8950 1.5 2.5 60* 3.9 2.0 195 ----- ----- Basin wide percent of average 62* 150 UPPER GREEN RIVER BIG SANDY OPENING 9100 1.6 .8 200* 2.2 1.7 129 BLIND BULL SUM 8650 1.6 2.5 64* 2.1 2.1 100 EAST RIM DIVIDE 7930 .7 .5 140* .9 1.6 56 ELKHART PARK G.S. 9400 1.2 1.1 109* 2.1 1.7 124 GROS VENTRE SUMMIT 8775 -M 1.2 * 1.4 1.7 82 KENDALL R.S. 7740 1.0 .1 1000* 2.3 1.6 144 LOOMIS PARK 8240 1.1 .6 183* 1.6 1.9 84 NEW FORK LAKE 8340 1.2 .1 1200* 1.4 1.5 93 SNIDER BASIN 8250 1.0 .1 1000* 1.1 1.6 69 SPRING CREEK DIVIDE 9000 1.1 1.6 69* 2.2 2.3 96 TRIPLE PEAK 8500 2.1 1.2 175* 2.4 3.0 80 ----- ----- Basin wide percent of average 147* 95 LOWER GREEN RIVER HAMS FORK 7840 .1 .1 100* 1.1 1.4 79 HEWINTA 9500 1.4 .3 467* 3.7 2.5 148 HICKERSON PARK 9150 2.9 .3 967* 3.8 2.2 173 HOLE-IN-ROCK 9150 1.4 .2 700* 3.3 2.2 150 INDIAN CREEK 9425 1.7 1.9 89* 1.5 2.5 60 KELLEY R.S. 8180 .7 .6 117* 1.4 1.9 74 STEEL CREEK PARK 10100 1.7 2.1 81 4.4 2.5 176 ----- ----- Basin wide percent of average 180* 126 UPPER BEAR RIVER BUG LAKE 7950 .9 1.2 75* 2.1 3.4 62 HAYDEN FORK 9400 .2 1.0 20* 3.3 2.6 127 KELLEY R.S. 8180 .7 .6 117* 1.4 1.9 74 LILY LAKE 9050 1.0 1.1 91* 3.1 2.8 111 MONTE CRISTO 8960 .5 1.5 33* 2.6 3.6 72 SALT RIVER SUMMIT 7600 .2 .1 200* 2.0 1.8 111 TRIAL LAKE 9960 1.5 2.0 75* 2.7 3.0 90 ----- ----- Basin wide percent of average 67* 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.