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 30 , 2013 ------------------------------------------------------------------------------ BASIN ELEV. SNOW WATER EQUIVALENT TOTAL PRECIPITATION Data Site Name (Ft) % % Current Median Median Current Average Avg ------------------------------------------------------------------------------ WYOMING SNAKE RIVER BASE CAMP 7030 .3 .1 300* 1.4 1.9 74 BLACK BEAR 8170 2.1 2.6 81* 2.5 3.7 68 BLIND BULL SUM 8650 1.2 1.2 100* 2.0 1.9 105 COTTONWOOD CREEK 7670 1.4 .8 175* 2.6 2.5 104 EAST RIM DIVIDE 7930 .3 .2 150* 1.5 1.2 125 GRAND TARGHEE 9260 3.4 4.4 77* 3.9 5.0 78 GRANITE CREEK 6770 .3 .0 * 1.5 1.8 83 GRASSY LAKE 7265 .6 1.0 60* 2.1 3.2 66 GROS VENTRE SUMMIT 8750 2.5 1.7 147 2.4 1.7 141 GUNSIGHT PASS 9820 2.4 .9 267* 2.7 2.1 129 LEWIS LAKE DIVIDE 7850 .3 .8 38* 1.7 3.0 57 PHILLIPS BENCH 8200 1.7 1.0 170* 2.6 2.2 118 SALT RIVER SUMMIT 7760 1.0 .2 500* 2.5 1.7 147 SNAKE RIVER STATION 6920 .3 .2 150* 1.3 2.4 54 SPRING CREEK DIVIDE 9000 1.4 1.0 140* 1.9 2.1 90 THUMB DIVIDE 7980 .3 .3 100* 1.5 2.1 71 TOGWOTEE PASS 9580 3.8 2.5 152* 2.8 2.6 108 TWO OCEAN PLATEAU 9240 3.6 3.0 120 2.6 2.8 93 WILLOW CREEK 8380 .9 .8 112* 3.6 3.4 106 YOUNTS PEAK 8350 -M 1.4 * -M 2.0 * ----- ----- Basin Index (%) 122* 91 MADISON-GALLATIN BLACK BEAR 8170 2.1 2.6 81* 2.5 3.7 68 CANYON 7870 .5 .5 100* 1.8 1.8 100 MADISON PLATEAU 7750 .1 1.2 8* 1.9 2.7 70 WEST YELLOWSTONE 6700 .0 .0 * 1.2 1.7 71 WHISKEY CREEK 6800 .3 .4 75* 1.2 2.2 55 ----- ----- Basin Index (%) 64* 71 YELLOWSTONE BEARTOOTH LAKE 9360 2.8 2.5 112 1.6 2.1 76 BURNT MTN 5880 1.8 .0 * 5.8 3.2 181 CANYON 7870 .5 .5 100* 1.8 1.8 100 COLE CREEK 7850 5.0 2.6 192 4.2 3.0 140 EVENING STAR 9200 3.2 2.3 139* 2.7 3.0 90 FISHER CREEK 9100 3.3 2.5 132* 2.4 3.3 73 NORTHEAST ENTRANCE 7350 .0 .0 * .9 1.7 53 PARKER PEAK 9400 3.4 2.5 136 2.4 2.5 96 SYLVAN LAKE 8420 1.4 1.5 93* 2.8 2.8 100 THUMB DIVIDE 7980 .3 .3 100* 1.5 2.1 71 TWO OCEAN PLATEAU 9240 3.6 3.0 120 2.6 2.8 93 WHITE MILL 8700 2.5 2.0 125* 2.0 2.6 77 WOLVERINE 7650 .0 .0 * 1.3 1.8 72 ----- ----- Basin Index (%) 141* 98 WIND RIVER BURROUGHS CREEK 8750 -M 1.0 * -M 1.8 * CASTLE CREEK 8400 .0 -M * 2.0 -M * COLD SPRINGS 9630 2.6 .6 433* 3.9 1.8 217 DEER PARK 9700 2.8 1.6 175* 3.3 2.8 118 HOBBS PARK 10100 4.0 1.9 211 4.0 2.2 182 KIRWIN 9550 3.6 1.6 225 2.7 1.9 142 LITTLE WARM 9370 2.6 1.1 236 3.4 1.8 189 OWL CREEK 8975 2.0 .6 333 2.2 1.2 183 SOUTH PASS 9040 2.2 1.3 169* 2.9 2.2 132 ST. LAWRENCE ALT 8620 1.4 .7 200 3.3 1.7 194 TOGWOTEE PASS 9580 3.8 2.5 152* 2.8 2.6 108 TOWNSEND CREEK 8700 1.4 .8 175* 2.5 2.2 114 ----- ----- Basin Index (%) 208* 152 BIGHORN BASIN BALD MTN. 9380 5.2 2.9 179 4.0 2.6 154 BEAR TRAP MEADOW 8200 2.2 .4 550* 3.7 1.6 231 BONE SPRINGS DIV 9350 3.3 2.6 127 3.0 2.6 115 GRAVE SPRINGS 8550 3.5 .8 438* 4.2 2.2 191 KIRWIN 9550 3.6 1.6 225 2.7 1.9 142 MARQUETTE 8760 3.6 -M * 4.3 -M * MIDDLE POWDER 7760 5.4 .9 600* 5.2 2.4 217 OWL CREEK 8975 2.0 .6 333 2.2 1.2 183 POWDER RIVER PASS 9480 3.2 1.3 246 3.4 2.1 162 SHELL CREEK 9580 3.9 2.7 144 3.0 2.3 130 TIMBER CREEK 7950 2.2 .5 440* 3.7 2.0 185 ----- ----- Basin Index (%) 241 168 SHOSHONE RIVER BLACKWATER 9780 4.5 2.7 167 2.5 2.6 96 EVENING STAR 9200 3.2 2.3 139* 2.7 3.0 90 MARQUETTE 8760 3.6 -M * 4.3 -M * SYLVAN ROAD 7120 .3 .2 150* 2.3 2.2 105 YOUNTS PEAK 8350 -M 1.4 * -M 2.0 * ----- ----- Basin Index (%) 154* 96 POWDER RIVER BEAR TRAP MEADOW 8200 2.2 .4 550* 3.7 1.6 231 CLOUD PEAK RESERVOIR 9860 3.5 1.8 194 4.6 2.6 177 GRAVE SPRINGS 8550 3.5 .8 438* 4.2 2.2 191 HANSEN SAWMILL 8360 2.5 .3 833* 3.8 1.8 211 MIDDLE POWDER 7760 5.4 .9 600* 5.2 2.4 217 POWDER RIVER PASS 9480 3.2 1.3 246 3.4 2.1 162 SOLDIER PARK 8720 2.0 -M * 3.6 -M * ----- ----- Basin Index (%) 369* 196 TONGUE RIVER BIG GOOSE 7990 2.2 1.0 220* 4.1 2.5 164 BONE SPRINGS DIV 9350 3.3 2.6 127 3.0 2.6 115 BURGESS JUNCTION 7880 2.8 1.2 233* 4.2 2.3 183 DOME LAKE 8880 2.3 1.8 128 3.8 2.7 141 LITTLE GOOSE 8870 3.1 -M * 5.1 -M * SUCKER CREEK 8880 4.2 1.5 280 5.0 2.6 192 TIE CREEK 6870 1.2 .1 1200* 4.5 2.7 167 ----- ----- Basin Index (%) 195* 160 BELLE FOURCHE COLE CANYON 5910 1.2 .0 * 6.8 1.9 358 ----- ----- Basin Index (%) * 358 CHEYENNE RIVER BASIN BLIND PARK 6890 1.6 .1 1600* 7.1 2.2 323 NORTH RAPID CREEK 6130 2.8 .0 * 7.4 2.1 352 ----- ----- Basin Index (%) 4400* 337 UPPER N. PLATTE ARAPAHO RIDGE 10960 3.2 2.8 114 3.9 3.2 122 BLACKHALL MTN 9820 4.1 -M * 5.3 -M * COLUMBINE 9160 1.2 .4 300* 3.8 2.6 146 DIVIDE PEAK 8880 2.3 1.3 177* 5.1 3.1 165 JOE WRIGHT 10120 2.0 2.3 87* 5.3 3.3 161 LAPRELE CREEK 8375 .6 .3 200* 2.7 1.9 142 MED BOW 10500 4.1 -M * 5.4 -M * NORTH FRENCH CREEK 10130 -M 2.6 * -M 3.1 * NEVER SUMMER 10280 3.2 2.2 145* 4.0 -M * OLD BATTLE 10000 3.8 2.5 152* 4.6 4.0 115 RAWAH 9020 1.7 .2 850* 4.5 2.3 196 SAGE CREEK BASIN 7850 .5 .1 500* 3.2 2.3 139 SAND LAKE 10050 4.4 2.4 183* 5.1 3.0 170 SOUTH BRUSH CREEK 8440 2.2 .4 550* 4.3 2.2 195 TOWER 10500 5.5 3.0 183* 6.1 4.2 145 WEBBER SPRINGS 9250 1.8 1.0 180* 3.8 3.1 123 WILLOW CREEK PASS 9540 2.7 1.1 245* 3.1 1.9 163 ZIRKEL 9340 .6 .7 86* 3.3 3.7 89 ----- ----- Basin Index (%) 172* 144 SWEETWATER DEER PARK 9700 2.8 1.6 175* 3.3 2.8 118 LARSEN CREEK 9000 .0 -M * 2.0 -M * SOUTH PASS 9040 2.2 1.3 169* 2.9 2.2 132 ----- ----- Basin Index (%) 172* 124 LOWER N. PLATTE CASPER MTN. 7900 6.6 1.1 600* 6.6 2.8 236 LAPRELE CREEK 8375 .6 .3 200* 2.7 1.9 142 RENO HILL 8400 6.3 1.2 525* 7.7 2.6 296 WINDY PEAK 7900 .2 .3 67* 2.6 1.7 153 ----- ----- Basin Index (%) 472* 218 LARAMIE RIVER BROOKLYN LAKE 10240 1.7 1.2 142* 2.7 2.2 123 CINNABAR PARK 9574 2.1 1.0 210* 3.5 2.8 125 CROW CREEK 8330 .5 .0 * 3.0 1.9 158 DEADMAN HILL 10220 3.3 2.1 157 4.1 2.3 178 RAWAH 9020 1.7 .2 850* 4.5 2.3 196 ROACH 9700 -M 1.0 * -M 2.4 * ----- ----- Basin Index (%) 207* 155 S. PLATTE BLACK MOUNTAIN 8920 1.8 -M * 3.1 -M * CROW CREEK 8330 .5 .0 * 3.0 1.9 158 DEADMAN HILL 10220 3.3 2.1 157 4.1 2.3 178 ----- ----- Basin Index (%) 181* 169 LITTLE SNAKE RIVER BATTLE MOUNTAIN 7440 1.0 .0 * 3.4 1.9 179 DIVIDE PEAK 8880 2.3 1.3 177* 5.1 3.1 165 ELK RIVER 8700 .4 .2 200* 3.2 2.4 133 LITTLE SNAKE RIVER 8915 1.1 .8 138* 4.9 4.5 109 OLD BATTLE 10000 3.8 2.5 152* 4.6 4.0 115 SAGE CREEK BASIN 7850 .5 .1 500* 3.2 2.3 139 SANDSTONE RS 8150 .4 .0 * 3.6 2.1 171 WHISKEY PARK 8950 3.2 .8 400* 5.4 2.7 200 ----- ----- Basin Index (%) 223* 145 UPPER GREEN RIVER BIG SANDY OPENING 9080 1.6 1.3 123 1.7 1.7 100 BLIND BULL SUM 8650 1.2 1.2 100* 2.0 1.9 105 EAST RIM DIVIDE 7930 .3 .2 150* 1.5 1.2 125 ELKHART PARK G.S. 9400 1.6 .9 178* 1.9 1.8 106 GROS VENTRE SUMMIT 8750 2.5 1.7 147 2.4 1.7 141 GUNSIGHT PASS 9820 2.4 .9 267* 2.7 2.1 129 KENDALL R.S. 7740 .2 .2 100* 1.6 1.4 114 LOOMIS PARK 8240 .6 .5 120* 1.8 1.6 112 NEW FORK LAKE 8340 .4 .4 100* .8 1.3 62 POCKET CREEK 9360 2.5 -M * 2.7 -M * SNIDER BASIN 8060 .5 .2 250* 1.4 1.3 108 SPRING CREEK DIVIDE 9000 1.4 1.0 140* 1.9 2.1 90 TRIPLE PEAK 8500 2.1 1.0 210* 1.9 2.1 90 ----- ----- Basin Index (%) 156* 107 LOWER GREEN RIVER BLACKS FORK JCT 8870 .0 -M * 2.4 -M * BUCK PASTURE 9700 .6 -M * 3.0 -M * EF BLACKS FORK GS 9360 .7 -M * 2.4 -M * HAMS FORK 7840 .5 .0 * 2.4 1.3 185 HEWINTA 9519 .4 .0 * 2.6 2.0 130 HICKERSON PARK 9145 1.3 .0 * 2.5 1.9 132 HOLE-IN-ROCK 9150 1.1 .0 * 2.2 2.0 110 INDIAN CREEK 9425 1.4 1.8 78* 2.5 2.1 119 KELLEY R.S. 8180 1.3 .5 260* 2.6 1.8 144 SPIRIT LK 10235 1.6 -M * 3.4 -M * STEEL CREEK PARK 10200 .4 1.4 29* 3.1 2.3 135 ----- ----- Basin Index (%) 173* 134 UPPER BEAR RIVER BEAR RIVER RS 8777 .5 -M * 2.3 -M * BUG LAKE 7950 .4 .3 133* 1.9 2.1 90 BURTS MILLER RANCH 8000 .6 -M * 1.3 -M * CHALK CREEK #1 8993 2.1 1.4 150* 3.4 3.0 113 HAYDEN FORK 9212 .6 .0 * 3.2 2.4 133 KELLEY R.S. 8180 1.3 .5 260* 2.6 1.8 144 LILY LAKE 9156 .6 .6 100* 3.3 2.4 138 MONTE CRISTO 8960 .9 .4 225* 2.4 2.7 89 SALT RIVER SUMMIT 7760 1.0 .2 500* 2.5 1.7 147 ----- ----- Basin Index (%) 203* 120 ----------------------------------------------------------------------------- -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. ---------------------------------------------------------------------------- -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.