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: OCTOBER 30 , 2010 ----------------------------------------------------------------------------- BASIN ELEV. SNOW WATER EQUIVALENT TOTAL PRECIPITATION Data Site Name (Ft) % % Current Average Avg Current Average Avg ----------------------------------------------------------------------------- WYOMING SNAKE RIVER BASE CAMP 7030 1.2 .6 200* 3.3 1.9 174 COTTONWOOD CREEK 7670 1.8 .8 225* 4.5 2.9 155 GRAND TARGHEE 9260 4.7 -M * 4.7 -M * GRANITE CREEK 6770 1.2 .5 240* 3.0 1.7 176 GRASSY LAKE 7265 1.1 1.3 85* 3.8 3.2 119 GROS VENTRE SUMMIT 8750 1.4 1.3 108* 1.9 1.8 106 GUNSIGHT PASS 9820 1.8 -M * 2.4 -M * LEWIS LAKE DIVIDE 7850 2.5 1.1 227* 4.2 3.0 140 PHILLIPS BENCH 8200 3.0 1.3 231* 3.9 2.3 170 SALT RIVER SUMMIT 7760 .5 .3 167* 2.5 1.9 132 SNAKE RIVER STATION 6920 .8 .5 160* 3.1 2.2 141 SPRING CREEK DIVIDE 9000 2.5 1.4 179* 3.8 2.4 158 THUMB DIVIDE 7980 .8 .7 114* 1.7 2.0 85 TOGWOTEE PASS 9580 2.9 2.4 121* 3.7 2.7 137 TWO OCEAN PLATEAU 9240 2.9 2.9 100* 2.6 2.9 90 WILLOW CREEK 8380 1.8 1.7 106* 5.1 3.6 142 ----- ----- Basin wide percent of average 145* 137 UPPER YELLOWSTONE-MADISON BEARTOOTH LAKE 9360 1.8 2.5 72* 2.3 2.0 115 BLACK BEAR 8170 1.8 2.6 69* 3.8 3.3 115 CANYON 7870 .0 .6 0* 1.5 1.7 88 FISHER CREEK 9100 1.5 2.5 60* 2.8 3.1 90 MADISON PLATEAU 7750 .8 1.5 53* 2.3 2.4 96 NORTHEAST ENTRANCE 7350 .2 .3 67* 1.8 1.5 120 PARKER PEAK 9400 1.1 2.5 44 2.3 2.3 100 SYLVAN LAKE 8420 .8 1.7 47* 2.4 2.5 96 THUMB DIVIDE 7980 .8 .7 114* 1.7 2.0 85 TWO OCEAN PLATEAU 9240 2.9 2.9 100* 2.6 2.9 90 WHISKEY CREEK 6800 .0 .7 0* 1.9 2.1 90 WHITE MILL 8700 1.1 1.8 61* 2.4 2.6 92 WOLVERINE 7650 .2 .5 40* 1.5 1.8 83 ----- ----- Basin wide percent of average 63* 97 WIND RIVER BURROUGHS CREEK 8750 1.7 .9 189* 1.9 1.6 119 CASTLE CREEK 8400 .5 -M * .9 -M * COLD SPRINGS 9630 .7 1.0 70 1.1 1.9 58 DEER PARK 9700 1.5 2.1 71 2.3 2.4 96 HOBBS PARK 10100 1.0 2.2 45 1.4 2.1 67 LITTLE WARM 9370 1.1 1.0 110* 1.1 1.7 65 SOUTH PASS 9040 .6 1.5 40* 1.7 2.0 85 ST. LAWRENCE ALT 8620 .2 .9 22 .7 1.7 41 TOGWOTEE PASS 9580 2.9 2.4 121* 3.7 2.7 137 TOWNSEND CREEK 8700 .2 1.0 20 1.8 2.1 86 ----- ----- Basin wide percent of average 76 86 BIGHORN BASIN BALD MTN. 9380 2.5 2.7 93 3.0 2.3 130 BEAR TRAP MEADOW 8200 .5 .6 83 1.9 1.7 112 BLACKWATER 9780 2.1 3.0 70 2.4 2.6 92 BONE SPRINGS DIV 9350 1.5 2.5 60 1.5 2.4 63 EVENING STAR 9200 2.1 2.5 84* 3.1 2.7 115 GRAVE SPRINGS 8550 .7 1.1 64* 1.1 2.1 52 KIRWIN 9550 1.3 1.8 72 1.7 1.8 94 MARQUETTE 8760 .1 1.9 5 .8 2.3 35 MIDDLE POWDER 7760 .7 1.3 54* 1.0 2.5 40 OWL CREEK 8975 .0 .8 0 .7 1.1 64 POWDER RIVER PASS 9480 2.1 1.2 175 2.8 1.9 147 SHELL CREEK 9580 2.1 2.6 81 1.9 2.0 95 SYLVAN LAKE 8420 .8 1.7 47* 2.4 2.5 96 SYLVAN ROAD 7120 .0 .5 0* 2.0 2.0 100 TIMBER CREEK 7950 .2 1.1 18 .5 1.6 31 YOUNTS PEAK 8350 1.3 1.3 100* 1.9 1.8 106 ----- ----- Basin wide percent of average 68 86 SHOSHONE RIVER BLACKWATER 9780 2.1 3.0 70 2.4 2.6 92 EVENING STAR 9200 2.1 2.5 84* 3.1 2.7 115 KIRWIN 9550 1.3 1.8 72 1.7 1.8 94 MARQUETTE 8760 .1 1.9 5 .8 2.3 35 SYLVAN LAKE 8420 .8 1.7 47* 2.4 2.5 96 SYLVAN ROAD 7120 .0 .5 0* 2.0 2.0 100 YOUNTS PEAK 8350 1.3 1.3 100* 1.9 1.8 106 ----- ----- Basin wide percent of average 61* 91 POWDER-TONGUE BEAR TRAP MEADOW 8200 .5 .6 83 1.9 1.7 112 BIG GOOSE 7990 .1 .8 13* 1.8 2.1 86 BONE SPRINGS DIV 9350 1.5 2.5 60 1.5 2.4 63 BURGESS JUNCTION 7880 .5 1.5 33 1.5 2.2 68 CLOUD PEAK RESERVOIR 9860 1.1 1.5 73* 2.6 2.5 104 DOME LAKE 8880 .4 1.8 22 1.9 2.4 79 GRAVE SPRINGS 8550 .7 1.1 64* 1.1 2.1 52 HANSEN SAWMILL 8360 .2 .8 25 .8 1.8 44 LITTLE GOOSE 8870 .0 -M * 3.1 -M * MIDDLE POWDER 7760 .7 1.3 54* 1.0 2.5 40 POWDER RIVER PASS 9480 2.1 1.2 175 2.8 1.9 147 SOLDIER PARK 8720 .1 -M * 1.1 -M * SUCKER CREEK 8880 .8 1.4 57 1.5 2.3 65 TIE CREEK 6870 .0 .9 0 1.2 2.5 48 ----- ----- Basin wide percent of average 56 74 BELLE FOURCHE BLIND PARK 6890 .5 .5 100* 4.5 2.5 180 COLE CANYON 5910 .3 1.0 30 1.7 1.8 94 NORTH RAPID CREEK 6130 .2 .5 40* 3.7 2.5 148 ----- ----- Basin wide percent of average 50* 146 UPPER N. PLATTE RIVER COLUMBINE 9160 2.4 .7 343* 5.4 2.3 235 DIVIDE PEAK 8880 .4 1.7 24* 2.7 2.6 104 ELK RIVER 8700 1.1 .6 183* 3.6 2.1 171 JOE WRIGHT 10120 3.4 2.4 142* 7.1 3.3 215 NORTH FRENCH CREEK 10130 3.1 3.0 103* 4.3 3.2 134 OLD BATTLE 10000 3.9 2.8 139* 5.4 3.4 159 SAGE CREEK BASIN 7850 .0 1.0 0* 2.9 1.5 193 SOUTH BRUSH CREEK 8440 .7 .7 100* 3.0 2.5 120 TOWER 10500 7.7 3.3 233* 9.1 3.8 239 WEBBER SPRINGS 9250 1.7 1.8 94* 5.1 2.9 176 WILLOW CREEK PASS 9540 2.3 1.1 209* -M 1.9 * ----- ----- Basin wide percent of average 140* 176 LOWER N. PLATTE - SWEETWATER - LARAMIE BROOKLYN LAKE 10240 2.3 2.1 110* 3.9 2.3 170 CASPER MTN. 7900 .5 1.7 29* 2.7 2.4 113 DEADMAN HILL 10220 2.7 2.1 129 4.9 2.4 204 DEER PARK 9700 1.5 2.1 71 2.3 2.4 96 LAPRELE CREEK 8375 .6 1.0 60* 1.6 1.8 89 RENO HILL 8400 .8 1.7 47 2.3 2.4 96 ROACH 9700 2.0 1.1 182* 3.9 2.2 177 SAND LAKE 10050 4.5 3.1 145* 4.7 2.9 162 SOUTH PASS 9040 .6 1.5 40* 1.7 2.0 85 WINDY PEAK 7900 .1 .5 20* 2.3 1.6 144 ----- ----- Basin wide percent of average 92* 135 LITTLE SNAKE RIVER BATTLE MOUNTAIN 7440 .0 .5 0* 3.2 1.8 178 DIVIDE PEAK 8880 .4 1.7 24* 2.7 2.6 104 OLD BATTLE 10000 3.9 2.8 139* 5.4 3.4 159 SANDSTONE RS 8150 -M .5 * 3.6 2.2 164 WHISKEY PARK 8950 2.1 1.6 131* 4.4 2.8 157 ----- ----- Basin wide percent of average 97* 151 UPPER GREEN RIVER BIG SANDY OPENING 9080 .8 1.2 67* 2.1 1.7 124 BLIND BULL SUM 8650 2.9 1.5 193* 2.3 2.1 110 EAST RIM DIVIDE 7930 .7 .6 117* 1.3 1.3 100 ELKHART PARK G.S. 9400 .8 .8 100* 1.7 1.9 89 GROS VENTRE SUMMIT 8750 1.4 1.3 108* 1.9 1.8 106 GUNSIGHT PASS 9820 1.8 -M * 2.4 -M * KENDALL R.S. 7740 .6 .6 100* 2.0 1.5 133 LOOMIS PARK 8240 1.2 .9 133* 2.3 1.7 135 NEW FORK LAKE 8340 .8 .5 160* 1.3 1.5 87 POCKET CREEK 9360 1.0 -M * 1.8 -M * SNIDER BASIN 8060 1.5 .7 214* 2.9 1.5 193 SPRING CREEK DIVIDE 9000 2.5 1.4 179* 3.8 2.4 158 TRIPLE PEAK 8500 2.7 1.1 245* 4.5 2.1 214 ----- ----- Basin wide percent of average 150* 134 LOWER GREEN RIVER HAMS FORK 7840 .5 .4 125* 2.2 1.4 157 HEWINTA 9519 -M .8 * 2.9 2.3 126 HICKERSON PARK 9145 .0 .4 0* 1.3 1.6 81 HOLE-IN-ROCK 9150 .4 .5 80* 1.6 1.6 100 INDIAN CREEK 9425 1.8 1.4 129* 3.0 2.4 125 KELLEY R.S. 8180 1.1 .9 122* 3.1 2.1 148 STEEL CREEK PARK 10200 1.3 1.6 81* 3.4 2.2 155 ----- ----- Basin wide percent of average 98* 129 UPPER BEAR RIVER BUG LAKE 7950 1.2 1.2 100* 3.9 2.3 170 HAYDEN FORK 9212 1.1 .8 138* 5.1 2.3 222 KELLEY R.S. 8180 1.1 .9 122* 3.1 2.1 148 LILY LAKE 9156 1.0 1.0 100* 4.1 2.3 178 MONTE CRISTO 8960 1.6 1.5 107* 4.3 2.7 159 SALT RIVER SUMMIT 7760 .5 .3 167* 2.5 1.9 132 TRIAL LAKE 9992 3.6 1.9 189* 5.7 2.6 219 ----- ----- Basin wide percent of average 133* 177 ----------------------------------------------------------------------------- -M = Missing data * = Data may not provide a valid measure of conditions. Units = inches for the Current and Average Snow Water Equivalent and Total Precipitation values 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 1971-2000. 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.