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 29 , 1997 ----------------------------------------------------------------------------- BASIN ELEV. SNOW WATER EQUIVALENT TOTAL PRECIPITATION Data Site Name (Ft) % % Current Average Avg Current Average Avg ----------------------------------------------------------------------------- WYOMING SNAKE RIVER BASE CAMP 7030 .1 .6 17* 1.7 1.8 94 COTTONWOOD CREEK 7600 .6 .6 100* 2.3 2.0 115 GRANITE CREEK 6770 .2 .5 40* .7 2.1 33 GRASSY LAKE 7265 1.0 .9 111* 3.0 3.0 100 GROS VENTRE SUMMIT 8775 2.9 .9 322* 1.1 1.4 79 LEWIS LAKE DIVIDE 7860 .7 1.2 58* 2.3 3.1 74 PHILLIPS BENCH 8200 .7 1.0 70* 1.7 2.3 74 SALT RIVER SUMMIT 7600 .3 .0 * 2.2 1.5 147 SNAKE RIVER STATION 6920 -M .5 * -M 2.1 * SPRING CREEK DIVIDE 9000 .3 1.2 25* 1.4 1.9 74 THUMB DIVIDE 7980 -M .4 * -M 1.7 * TOGWOTEE PASS 9580 2.2 2.1 105* 2.1 2.3 91 TWO OCEAN PLATEAU 9360 2.9 3.1 94 2.8 2.5 112 WILLOW CREEK 8450 .6 1.0 60* 3.5 2.5 140 ----- ----- Basin wide percent of average 93* 94 UPPER YELLOWSTONE-MADISON BEARTOOTH LAKE 9275 2.2 2.7 81 1.8 1.7 106 BLACK BEAR 7950 2.9 2.4 121* 3.7 3.2 116 CANYON 7940 1.3 .7 186* 2.7 1.6 169 FISHER CREEK 9100 2.2 2.3 96* 2.4 2.7 89 MADISON PLATEAU 7750 1.6 1.3 123* 2.7 2.3 117 NORTHEAST ENTRANCE 7350 .1 .2 50* 1.8 1.4 129 PARKER PEAK 9400 2.3 3.3 70 2.5 2.0 125 SYLVAN LAKE 8420 1.8 2.3 78* -M 2.3 * THUMB DIVIDE 7980 -M .4 * -M 1.7 * TWO OCEAN PLATEAU 9360 2.9 3.1 94 2.8 2.5 112 WHISKEY CREEK 6800 .6 .7 86* 2.1 2.0 105 WHITE MILL 8700 2.0 1.7 118* 2.2 2.4 92 WOLVERINE 7650 .2 .3 67* 2.0 1.4 143 ----- ----- Basin wide percent of average 96* 115 WIND RIVER BURROUGHS CREEK 8750 1.1 .8 138* 1.5 1.4 107 COLD SPRINGS 9630 1.8 .8 225* 2.4 1.7 141 DEER PARK 9700 .0 -M * .0 -M * HOBBS PARK 10100 2.4 1.9 126 2.8 1.8 156 LITTLE WARM 9620 .9 .9 100* 2.2 1.6 138 SOUTH PASS 9040 1.7 2.4 71 2.7 2.0 135 ST. LAWRENCE ALT 8620 1.9 .7 271* 2.4 1.5 160 TOGWOTEE PASS 9580 2.2 2.1 105* 2.1 2.3 91 TOWNSEND CREEK 8700 1.9 .9 211* 2.9 1.7 171 ----- ----- Basin wide percent of average 132* 136 BIGHORN BASIN BALD MTN. 9375 2.7 2.4 113* 2.8 2.1 133 BEAR TRAP MEADOW 7900 .5 .6 83* 1.4 1.4 100 BLACKWATER 9780 2.5 2.3 109* 2.6 2.2 118 BONE SPRINGS DIV 9350 2.3 2.5 92 2.8 2.0 140 EVENING STAR 9200 1.9 3.4 56 3.3 2.6 127 GRAVE SPRINGS 8550 .7 -M * 1.8 1.7 106 KIRWIN 9550 -M 1.4 * -M 1.4 * LOST CREEK 8080 -M 1.2 * -M 1.8 * MARQUETTE 8760 3.8 .9 422 4.3 1.6 269 MIDDLE POWDER 7760 .8 1.2 67* 1.8 1.9 95 OWL CREEK 8975 1.4 .5 280 1.6 .9 178 POWDER RIVER PASS 9480 .4 1.1 36* 1.3 1.7 76 SHELL CREEK 9580 2.1 2.3 91 1.7 1.7 100 SYLVAN LAKE 8420 1.8 2.3 78* -M 2.3 * SYLVAN ROAD 8120 .3 1.4 21 1.9 2.0 95 TIMBER CREEK 7950 2.2 .3 733* 3.1 1.2 258 YOUNTS PEAK 8350 2.3 2.1 110 1.6 1.7 94 ----- ----- Basin wide percent of average 107* 130 SHOSHONE RIVER BLACKWATER 9780 2.5 2.3 109* 2.6 2.2 118 EVENING STAR 9200 1.9 3.4 56 3.3 2.6 127 KIRWIN 9550 -M 1.4 * -M 1.4 * MARQUETTE 8760 3.8 .9 422 4.3 1.6 269 SYLVAN LAKE 8420 1.8 2.3 78* -M 2.3 * SYLVAN ROAD 8120 .3 1.4 21 1.9 2.0 95 YOUNTS PEAK 8350 2.3 2.1 110 1.6 1.7 94 ----- ----- Basin wide percent of average 102 136 POWDER-TONGUE BEAR TRAP MEADOW 7900 .5 .6 83* 1.4 1.4 100 BONE SPRINGS DIV 9350 2.3 2.5 92 2.8 2.0 140 BURGESS JUNCTION 7880 .9 1.4 64 2.3 1.8 128 CLOUD PEAK RESERVOIR 9860 1.1 1.2 92* 3.2 1.9 168 DOME LAKE 8880 1.9 1.7 112 2.9 2.1 138 GRAVE SPRINGS 8550 .7 -M * 1.8 1.7 106 HANSEN SAWMILL 8760 1.1 .7 157* 2.0 1.4 143 LOST CREEK 8080 -M 1.2 * -M 1.8 * MIDDLE POWDER 7760 .8 1.2 67* 1.8 1.9 95 POWDER RIVER PASS 9480 .4 1.1 36* 1.3 1.7 76 SUCKER CREEK 8880 1.4 1.1 127* 3.0 2.0 150 TIE CREEK 6870 1.5 -M * 3.0 1.7 176 ----- ----- Basin wide percent of average 90* 130 BELLE FOURCHE BLIND PARK 6890 .4 1.5 27 1.6 1.6 100 NORTH RAPID CREEK 6130 .6 -M * 1.1 -M * WARREN PEAK 6520 .2 1.5 13 1.7 1.3 131 ----- ----- Basin wide percent of average 20 114 UPPER N. PLATTE RIVER COLUMBINE 9400 .8 1.4 57* 3.3 2.3 143 DIVIDE PEAK 8800 1.6 1.8 89* 3.3 2.8 118 ELK RIVER 8700 .1 .3 33* 3.0 2.1 143 JOE WRIGHT 10120 2.3 2.7 85 4.3 3.2 134 NORTH FRENCH CREEK 10100 2.2 1.9 116* 3.4 2.1 162 OLD BATTLE 10000 3.1 3.3 94* 4.7 2.9 162 SOUTH BRUSH CREEK 8400 .3 .3 100* 1.8 2.1 86 TOWER 10500 4.4 5.3 83 -M 3.6 * WEBBER SPRINGS 9200 1.6 1.7 94* 3.9 2.7 144 WILLOW CREEK PASS 9540 1.7 .9 189* 2.1 1.6 131 ----- ----- Basin wide percent of average 92* 137 LOWER N. PLATTE - SWEETWATER - LARAMIE BROOKLYN LAKE 10240 1.3 1.7 76* 2.7 2.2 123 CASPER MTN. 7900 2.6 1.1 236* 2.7 2.3 117 DEADMAN HILL 10220 3.4 1.2 283* 2.9 2.2 132 DEER PARK 9700 .0 -M * .0 -M * LAPRELE CREEK 8320 1.1 .8 138* 2.1 1.4 150 RENO HILL 8400 1.7 1.5 113* 2.1 2.3 91 ROACH 9700 1.5 1.2 125* 2.7 2.4 113 SAND LAKE 10080 3.6 2.7 133* 4.6 2.3 200 SOUTH PASS 9040 1.7 2.4 71 2.7 2.0 135 WINDY PEAK 7840 1.0 .2 500* 2.0 1.1 182 ----- ----- Basin wide percent of average 140* 135 LITTLE SNAKE RIVER BATTLE MOUNTAIN 7440 .0 .3 0* 3.2 1.6 200 DIVIDE PEAK 8800 1.6 1.8 89* 3.3 2.8 118 OLD BATTLE 10000 3.1 3.3 94* 4.7 2.9 162 SANDSTONE RS 8150 -M .7 * 3.0 1.5 200 WHISKEY PARK 8950 1.2 2.0 60* 3.7 1.7 218 ----- ----- Basin wide percent of average 80* 170 UPPER GREEN RIVER BIG SANDY OPENING 9100 1.3 .6 217* 1.3 1.4 93 BLIND BULL SUM 8650 .7 1.9 37* 1.3 1.8 72 EAST RIM DIVIDE 7930 .3 .3 100* .4 1.4 29 ELKHART PARK G.S. 9400 .7 .8 88* 1.5 1.4 107 GROS VENTRE SUMMIT 8775 2.9 .9 322* 1.1 1.4 79 KENDALL R.S. 7740 .3 .0 * .9 1.4 64 LOOMIS PARK 8240 .2 .4 50* .7 1.6 44 NEW FORK LAKE 8340 .7 .0 * 1.0 1.3 77 SNIDER BASIN 8250 .0 .0 100* .6 1.4 43 SPRING CREEK DIVIDE 9000 .3 1.2 25* 1.4 1.9 74 TRIPLE PEAK 8500 1.0 .8 125* 1.4 2.5 56 ----- ----- Basin wide percent of average 107* 66 LOWER GREEN RIVER HAMS FORK 7840 .3 .0 * .8 1.2 67 HEWINTA 9500 1.4 .2 700* 3.4 2.2 155 HICKERSON PARK 9150 3.0 .2 1500* 3.8 1.9 200 HOLE-IN-ROCK 9150 1.4 .1 1400* 3.2 1.9 168 INDIAN CREEK 9425 1.2 1.4 86* 1.2 2.1 57 KELLEY R.S. 8180 .5 .4 125* 1.2 1.6 75 STEEL CREEK PARK 10100 1.2 1.8 67* 4.2 2.2 191 ----- ----- Basin wide percent of average 212* 136 UPPER BEAR RIVER BUG LAKE 7950 .7 1.0 70* 1.9 3.0 63 HAYDEN FORK 9400 .0 .8 0* 2.7 2.3 117 KELLEY R.S. 8180 .5 .4 125* 1.2 1.6 75 LILY LAKE 9050 .8 .9 89* 2.7 2.4 113 MONTE CRISTO 8960 1.1 1.3 85* 2.3 3.2 72 SALT RIVER SUMMIT 7600 .3 .0 * 2.2 1.5 147 TRIAL LAKE 9960 .9 1.7 53* 2.1 2.6 81 ----- ----- Basin wide percent of average 66* 91 ----------------------------------------------------------------------------- -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.