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: OCTOBER 27 , 2013 ------------------------------------------------------------------------------ BASIN ELEV. SNOW WATER EQUIVALENT TOTAL PRECIPITATION Data Site Name (Ft) % % Current Median Median Current Average Avg ------------------------------------------------------------------------------ WYOMING SNAKE RIVER BASE CAMP 7030 .1 .0 * 1.3 1.7 76 BLACK BEAR 8170 1.7 2.4 71* 2.1 3.2 66 BLIND BULL SUM 8650 .8 1.0 80* 1.3 1.7 76 COTTONWOOD CREEK 7670 .5 .5 100* 1.6 2.2 73 EAST RIM DIVIDE 7930 .1 .0 * 1.2 1.1 109 GRAND TARGHEE 9260 2.4 4.2 57* 2.8 4.7 60 GRANITE CREEK 6770 .1 .0 * 1.1 1.6 69 GRASSY LAKE 7265 .1 .7 14* 1.5 2.8 54 GROS VENTRE SUMMIT 8750 2.2 1.5 147 2.1 1.5 140 GUNSIGHT PASS 9820 2.2 .8 275* 2.5 1.9 132 LEWIS LAKE DIVIDE 7850 .0 .5 0* 1.3 2.7 48 PHILLIPS BENCH 8200 .6 .6 100* 1.5 2.0 75 SALT RIVER SUMMIT 7760 .0 .0 * 1.4 1.4 100 SNAKE RIVER STATION 6920 .0 .0 * 1.0 2.2 45 SPRING CREEK DIVIDE 9000 .5 .8 62* 1.1 1.8 61 THUMB DIVIDE 7980 .0 .3 0* 1.2 1.9 63 TOGWOTEE PASS 9580 3.4 2.4 142* 2.4 2.3 104 TWO OCEAN PLATEAU 9240 3.2 2.8 114* 2.3 2.6 88 WILLOW CREEK 8380 .0 .6 0* 2.5 3.0 83 YOUNTS PEAK 8350 -M 1.3 * -M 1.9 * ----- ----- Basin Index (%) 94* 76 MADISON-GALLATIN BLACK BEAR 8170 1.7 2.4 71* 2.1 3.2 66 CANYON 7870 .5 .3 167* 1.6 1.6 100 MADISON PLATEAU 7750 .0 1.0 0* 1.7 2.4 71 WEST YELLOWSTONE 6700 .2 .0 * 1.2 1.6 75 WHISKEY CREEK 6800 .2 .2 100* 1.2 2.0 60 ----- ----- Basin Index (%) 67* 72 YELLOWSTONE BEARTOOTH LAKE 9360 2.6 2.2 118* 1.5 1.9 79 BURNT MTN 5880 1.4 .0 * 5.3 2.9 183 CANYON 7870 .5 .3 167* 1.6 1.6 100 COLE CREEK 7850 4.6 2.2 209 3.9 2.6 150 EVENING STAR 9200 3.1 2.0 155* 2.6 2.7 96 FISHER CREEK 9100 3.2 2.2 145* 2.4 3.0 80 NORTHEAST ENTRANCE 7350 .1 .0 * .8 1.4 57 PARKER PEAK 9400 3.2 2.2 145* 2.2 2.3 96 SYLVAN LAKE 8420 .9 1.3 69* 2.1 2.5 84 THUMB DIVIDE 7980 .0 .3 0* 1.2 1.9 63 TWO OCEAN PLATEAU 9240 3.2 2.8 114* 2.3 2.6 88 WHITE MILL 8700 2.4 1.7 141* 1.8 2.3 78 WOLVERINE 7650 .0 .0 * 1.3 1.6 81 ----- ----- Basin Index (%) 147* 99 WIND RIVER BURROUGHS CREEK 8750 -M .8 * -M 1.6 * CASTLE CREEK 8400 .0 -M * 1.8 -M * COLD SPRINGS 9630 2.2 .5 440* 3.4 1.6 212 DEER PARK 9700 2.3 1.5 153* 2.8 2.5 112 HOBBS PARK 10100 3.5 1.6 219 3.7 2.0 185 KIRWIN 9550 3.4 1.4 243 2.5 1.6 156 LITTLE WARM 9370 2.4 1.0 240* 3.2 1.6 200 OWL CREEK 8975 1.8 .5 360* 2.0 1.1 182 SOUTH PASS 9040 1.8 1.0 180* 2.6 2.0 130 ST. LAWRENCE ALT 8620 1.1 .5 220* 3.1 1.5 207 TOGWOTEE PASS 9580 3.4 2.4 142* 2.4 2.3 104 TOWNSEND CREEK 8700 -M .6 * -M 2.0 * ----- ----- Basin Index (%) 211* 159 BIGHORN BASIN BALD MTN. 9380 5.1 2.6 196 3.8 2.4 158 BEAR TRAP MEADOW 8200 2.3 .3 767* 3.6 1.5 240 BONE SPRINGS DIV 9350 3.2 2.2 145 2.9 2.4 121 GRAVE SPRINGS 8550 3.3 .7 471* 4.0 2.0 200 KIRWIN 9550 3.4 1.4 243 2.5 1.6 156 MARQUETTE 8760 3.6 -M * 4.2 -M * MIDDLE POWDER 7760 5.4 .7 771* 5.1 2.1 243 OWL CREEK 8975 1.8 .5 360* 2.0 1.1 182 POWDER RIVER PASS 9480 3.1 1.1 282 3.4 1.9 179 SHELL CREEK 9580 3.7 2.6 142 2.9 2.1 138 TIMBER CREEK 7950 2.0 .3 667* 3.5 1.7 206 ----- ----- Basin Index (%) 269* 179 SHOSHONE RIVER BLACKWATER 9780 4.4 2.4 183* 2.4 2.4 100 EVENING STAR 9200 3.1 2.0 155* 2.6 2.7 96 MARQUETTE 8760 3.6 -M * 4.2 -M * SYLVAN ROAD 7120 .1 .0 * 2.0 1.9 105 YOUNTS PEAK 8350 -M 1.3 * -M 1.9 * ----- ----- Basin Index (%) 173* 100 POWDER RIVER BEAR TRAP MEADOW 8200 2.3 .3 767* 3.6 1.5 240 CLOUD PEAK RESERVOIR 9860 3.3 1.6 206* 4.3 2.5 172 GRAVE SPRINGS 8550 3.3 .7 471* 4.0 2.0 200 HANSEN SAWMILL 8360 2.2 .2 1100* 3.6 1.6 225 MIDDLE POWDER 7760 5.4 .7 771* 5.1 2.1 243 POWDER RIVER PASS 9480 3.1 1.1 282 3.4 1.9 179 SOLDIER PARK 8720 1.8 -M * 3.4 -M * ----- ----- Basin Index (%) 426* 207 TONGUE RIVER BIG GOOSE 7990 2.4 .8 300* 4.3 2.2 195 BONE SPRINGS DIV 9350 3.2 2.2 145 2.9 2.4 121 BURGESS JUNCTION 7880 2.9 1.0 290* 4.3 2.1 205 DOME LAKE 8880 2.5 1.4 179 3.9 2.4 162 LITTLE GOOSE 8870 3.2 -M * 5.1 -M * SUCKER CREEK 8880 4.2 1.3 323 5.2 2.4 217 TIE CREEK 6870 1.3 .0 * 4.5 2.5 180 ----- ----- Basin Index (%) 246* 179 BELLE FOURCHE COLE CANYON 5910 1.6 .0 * 6.8 1.6 425 ----- ----- Basin Index (%) * 425 CHEYENNE RIVER BASIN BLIND PARK 6890 1.8 .0 * 7.0 2.0 350 NORTH RAPID CREEK 6130 3.0 .0 * 7.4 1.8 411 ----- ----- Basin Index (%) * 379 UPPER N. PLATTE ARAPAHO RIDGE 10960 2.6 2.4 108 3.3 2.9 114 BLACKHALL MTN 9820 3.9 -M * 5.0 -M * COLUMBINE 9160 1.2 .2 600* 3.4 2.2 155 DIVIDE PEAK 8880 2.2 1.0 220* 4.9 2.7 181 JOE WRIGHT 10120 1.5 2.0 75* 4.7 2.9 162 LAPRELE CREEK 8375 .8 .2 400* 2.7 1.7 159 MED BOW 10500 4.5 -M * 5.7 -M * NORTH FRENCH CREEK 10130 -M 2.4 * -M 2.8 * NEVER SUMMER 10280 2.7 1.8 150* 3.5 -M * OLD BATTLE 10000 3.6 2.2 164* 4.5 3.5 129 RAWAH 9020 1.6 .1 1600* 4.2 2.0 210 SAGE CREEK BASIN 7850 .2 .0 * 2.9 2.0 145 SAND LAKE 10050 4.3 2.1 205* 5.1 2.6 196 SOUTH BRUSH CREEK 8440 2.3 .3 767* 4.3 1.9 226 TOWER 10500 4.9 2.6 188* 5.6 3.7 151 WEBBER SPRINGS 9250 1.6 .9 178* 3.7 2.8 132 WILLOW CREEK PASS 9540 2.2 .8 275* 2.6 1.7 153 ZIRKEL 9340 .8 .5 160* 3.1 3.4 91 ----- ----- Basin Index (%) 190* 153 SWEETWATER DEER PARK 9700 2.3 1.5 153* 2.8 2.5 112 LARSEN CREEK 9000 .0 -M * 1.9 -M * SOUTH PASS 9040 1.8 1.0 180* 2.6 2.0 130 ----- ----- Basin Index (%) 164* 120 LOWER N. PLATTE CASPER MTN. 7900 6.5 .8 812* 6.6 2.5 264 LAPRELE CREEK 8375 .8 .2 400* 2.7 1.7 159 RENO HILL 8400 6.4 1.1 582* 7.8 2.3 339 WINDY PEAK 7900 .4 .1 400* 2.6 1.4 186 ----- ----- Basin Index (%) 641* 249 LARAMIE RIVER BROOKLYN LAKE 10240 1.7 1.0 170* 2.7 2.0 135 CINNABAR PARK 9574 2.0 .9 222* 3.3 2.4 138 CROW CREEK 8330 .4 .0 * 2.8 1.6 175 DEADMAN HILL 10220 2.8 1.8 156* 3.8 2.1 181 RAWAH 9020 1.6 .1 1600* 4.2 2.0 210 ROACH 9700 -M .7 * -M 2.0 * ----- ----- Basin Index (%) 224* 166 S. PLATTE BLACK MOUNTAIN 8920 1.5 -M * 2.7 -M * CROW CREEK 8330 .4 .0 * 2.8 1.6 175 DEADMAN HILL 10220 2.8 1.8 156* 3.8 2.1 181 ----- ----- Basin Index (%) 178* 178 LITTLE SNAKE RIVER BATTLE MOUNTAIN 7440 .7 .0 * 3.1 1.6 194 DIVIDE PEAK 8880 2.2 1.0 220* 4.9 2.7 181 ELK RIVER 8700 .3 .0 * 3.0 2.2 136 LITTLE SNAKE RIVER 8915 1.3 .7 186* 4.7 4.0 118 OLD BATTLE 10000 3.6 2.2 164* 4.5 3.5 129 SAGE CREEK BASIN 7850 .2 .0 * 2.9 2.0 145 SANDSTONE RS 8150 .5 .0 * 3.4 1.8 189 WHISKEY PARK 8950 3.1 .6 517* 5.1 2.4 212 ----- ----- Basin Index (%) 264* 156 UPPER GREEN RIVER BIG SANDY OPENING 9080 1.3 1.1 118* 1.5 1.6 94 BLIND BULL SUM 8650 .8 1.0 80* 1.3 1.7 76 EAST RIM DIVIDE 7930 .1 .0 * 1.2 1.1 109 ELKHART PARK G.S. 9400 1.2 .7 171* 1.9 1.6 119 GROS VENTRE SUMMIT 8750 2.2 1.5 147 2.1 1.5 140 GUNSIGHT PASS 9820 2.2 .8 275* 2.5 1.9 132 KENDALL R.S. 7740 .0 .0 * 1.2 1.3 92 LOOMIS PARK 8240 .2 .2 100* 1.4 1.4 100 NEW FORK LAKE 8340 .3 .2 150* .7 1.2 58 POCKET CREEK 9360 2.4 -M * 2.6 -M * SNIDER BASIN 8060 .2 .0 * .9 1.2 75 SPRING CREEK DIVIDE 9000 .5 .8 62* 1.1 1.8 61 TRIPLE PEAK 8500 1.3 .7 186* 1.3 1.9 68 ----- ----- Basin Index (%) 147* 94 LOWER GREEN RIVER BLACKS FORK JCT 8870 -M -M * 1.8 -M * BUCK PASTURE 9700 .0 -M * 2.3 -M * EF BLACKS FORK GS 9360 .1 -M * 1.8 -M * HAMS FORK 7840 .0 .0 * 1.5 1.2 125 HEWINTA 9519 .0 .0 * 2.0 1.8 111 HICKERSON PARK 9145 .0 .0 * 1.5 1.6 94 HOLE-IN-ROCK 9150 .1 .0 * 1.3 1.7 76 INDIAN CREEK 9425 .4 1.4 29* 1.6 1.9 84 KELLEY R.S. 8180 .4 .3 133* 1.6 1.6 100 SPIRIT LK 10235 .5 -M * 2.1 -M * STEEL CREEK PARK 10200 .0 1.1 0* 2.4 2.0 120 ----- ----- Basin Index (%) 32* 101 UPPER BEAR RIVER BEAR RIVER RS 8777 .0 -M * 1.7 -M * BUG LAKE 7950 .5 .0 * 1.4 1.9 74 BURTS MILLER RANCH 8000 .1 -M * .9 -M * CHALK CREEK #1 8993 1.3 1.1 118* 2.4 2.6 92 HAYDEN FORK 9212 .1 .0 * 2.5 2.2 114 KELLEY R.S. 8180 .4 .3 133* 1.6 1.6 100 LILY LAKE 9156 .0 .5 0* 2.6 2.1 124 MONTE CRISTO 8960 .2 .0 * 1.6 2.4 67 SALT RIVER SUMMIT 7760 .0 .0 * 1.4 1.4 100 ----- ----- Basin Index (%) 132* 95 ----------------------------------------------------------------------------- -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.