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 MONDAY: OCTOBER 24 , 2011 ----------------------------------------------------------------------------- BASIN ELEV. SNOW WATER EQUIVALENT TOTAL PRECIPITATION Data Site Name (Ft) % % Current Average Avg Current Average Avg ----------------------------------------------------------------------------- WYOMING SNAKE RIVER BASE CAMP 7030 .0 .3 0* 3.3 1.5 220 COTTONWOOD CREEK 7670 .0 .5 0* 4.3 2.2 195 GRAND TARGHEE 9260 2.7 -M * 5.1 -M * GRANITE CREEK 6770 .0 .3 0* 2.4 1.2 200 GRASSY LAKE 7265 .0 .8 0* 5.2 2.4 217 GROS VENTRE SUMMIT 8750 .4 1.0 40* 2.0 1.4 143 GUNSIGHT PASS 9820 .8 -M * 2.5 -M * LEWIS LAKE DIVIDE 7850 .1 .6 17* 4.2 2.2 191 PHILLIPS BENCH 8200 .0 .8 0* 2.6 1.7 153 SALT RIVER SUMMIT 7760 .0 .1 0* 2.2 1.4 157 SNAKE RIVER STATION 6920 .1 .3 33* 3.6 1.6 225 SPRING CREEK DIVIDE 9000 1.3 .9 144* 3.2 1.7 188 THUMB DIVIDE 7980 .0 .4 0* 2.6 1.5 173 TOGWOTEE PASS 9580 1.4 1.8 78* 2.9 2.0 145 TWO OCEAN PLATEAU 9240 3.4 2.1 162* 3.7 2.2 168 WILLOW CREEK 8380 .0 1.1 0* 4.9 2.7 181 ----- ----- Basin wide percent of average 61* 183 UPPER YELLOWSTONE-MADISON BEARTOOTH LAKE 9360 1.6 2.1 76* 2.4 1.5 160 BLACK BEAR 8170 1.6 1.6 100* 4.8 2.4 200 CANYON 7870 .0 .4 0* 1.7 1.3 131 FISHER CREEK 9100 1.6 1.8 89* 3.7 2.3 161 MADISON PLATEAU 7750 .0 .9 0* 3.7 1.9 195 NORTHEAST ENTRANCE 7350 .0 .1 0* 1.8 1.2 150 PARKER PEAK 9400 .0 2.1 0* 2.3 1.8 128 SYLVAN LAKE 8420 .0 1.3 0* 3.8 1.9 200 THUMB DIVIDE 7980 .0 .4 0* 2.6 1.5 173 TWO OCEAN PLATEAU 9240 3.4 2.1 162* 3.7 2.2 168 WHISKEY CREEK 6800 .1 .3 33* 3.3 1.6 206 WHITE MILL 8700 .8 1.3 62* 3.1 2.0 155 WOLVERINE 7650 .0 .3 0* 1.9 1.4 136 ----- ----- Basin wide percent of average 62* 169 WIND RIVER BURROUGHS CREEK 8750 .0 .6 0* 1.4 1.2 117 CASTLE CREEK 8400 .0 -M * 1.2 -M * COLD SPRINGS 9630 .0 .8 0* 1.6 1.4 114 DEER PARK 9700 .9 1.2 75* 2.4 1.9 126 HOBBS PARK 10100 1.7 1.7 100* 2.4 1.6 150 LITTLE WARM 9370 .0 .8 0* 1.7 1.3 131 SOUTH PASS 9040 .5 1.1 45* 2.1 1.5 140 ST. LAWRENCE ALT 8620 .0 .6 0* 1.1 1.3 85 TOGWOTEE PASS 9580 1.4 1.8 78* 2.9 2.0 145 TOWNSEND CREEK 8700 .0 .7 0* 2.4 1.6 150 ----- ----- Basin wide percent of average 48* 130 BIGHORN BASIN BALD MTN. 9380 3.0 2.1 143* 3.3 1.8 183 BEAR TRAP MEADOW 8200 .0 .5 0* 1.8 1.4 129 BLACKWATER 9780 2.8 2.4 117* 3.2 2.0 160 BONE SPRINGS DIV 9350 3.3 2.0 165 4.1 1.9 216 EVENING STAR 9200 .9 1.9 47* 3.3 2.0 165 GRAVE SPRINGS 8550 .0 .8 0* 1.9 1.7 112 KIRWIN 9550 1.6 1.4 114 2.8 1.3 215 MARQUETTE 8760 .0 -M * 3.3 1.8 183 MIDDLE POWDER 7760 .0 1.0 0* 4.0 2.0 200 OWL CREEK 8975 .7 .7 100 1.5 .9 167 POWDER RIVER PASS 9480 1.7 .9 189* 2.8 1.5 187 SHELL CREEK 9580 3.9 2.2 177 3.5 1.5 233 SYLVAN LAKE 8420 .0 1.3 0* 3.8 1.9 200 SYLVAN ROAD 7120 .0 .3 0* 2.0 1.4 143 TIMBER CREEK 7950 .0 .8 0 3.5 1.2 292 YOUNTS PEAK 8350 .0 1.0 0* 2.5 1.4 179 ----- ----- Basin wide percent of average 93* 184 SHOSHONE RIVER BLACKWATER 9780 2.8 2.4 117* 3.2 2.0 160 EVENING STAR 9200 .9 1.9 47* 3.3 2.0 165 KIRWIN 9550 1.6 1.4 114 2.8 1.3 215 MARQUETTE 8760 .0 -M * 3.3 1.8 183 SYLVAN LAKE 8420 .0 1.3 0* 3.8 1.9 200 SYLVAN ROAD 7120 .0 .3 0* 2.0 1.4 143 YOUNTS PEAK 8350 .0 1.0 0* 2.5 1.4 179 ----- ----- Basin wide percent of average 64* 177 POWDER-TONGUE BEAR TRAP MEADOW 8200 .0 .5 0* 1.8 1.4 129 BIG GOOSE 7990 1.0 .6 167* 4.0 1.7 235 BONE SPRINGS DIV 9350 3.3 2.0 165 4.1 1.9 216 BURGESS JUNCTION 7880 1.0 1.1 91* 3.9 1.7 229 CLOUD PEAK RESERVOIR 9860 1.6 1.1 145* 3.6 2.1 171 DOME LAKE 8880 2.0 1.3 154* 4.2 1.9 221 GRAVE SPRINGS 8550 .0 .8 0* 1.9 1.7 112 HANSEN SAWMILL 8360 .0 .5 0* 1.6 1.4 114 LITTLE GOOSE 8870 1.2 -M * 4.4 -M * MIDDLE POWDER 7760 .0 1.0 0* 4.0 2.0 200 POWDER RIVER PASS 9480 1.7 .9 189* 2.8 1.5 187 SOLDIER PARK 8720 .0 -M * 2.4 -M * SUCKER CREEK 8880 2.3 .9 256* 3.9 1.9 205 TIE CREEK 6870 .0 .5 0* 4.2 2.0 210 ----- ----- Basin wide percent of average 115* 189 BELLE FOURCHE BLIND PARK 6890 .0 .2 0* 1.0 2.0 50 COLE CANYON 5910 .0 .6 0* 1.3 1.4 93 NORTH RAPID CREEK 6130 .0 .3 0* .7 2.0 35 ----- ----- Basin wide percent of average 0* 56 UPPER N. PLATTE RIVER BLACKHALL MTN 9820 1.6 -M * 3.3 -M * CINNABAR PARK 9574 .4 .9 44* 2.5 1.7 147 COLUMBINE 9160 .0 .3 0* 2.0 1.7 118 DIVIDE PEAK 8880 .1 1.2 8* 2.5 2.0 125 ELK RIVER 8700 .0 .3 0* 2.0 1.6 125 JOE WRIGHT 10120 .0 1.7 0* 2.3 2.6 88 NORTH FRENCH CREEK 10130 1.8 2.3 78* 3.2 2.4 133 OLD BATTLE 10000 1.7 2.0 85* 3.1 2.6 119 SAGE CREEK BASIN 7850 .0 .7 0* 1.7 1.2 142 SOUTH BRUSH CREEK 8440 .1 .4 25* 2.3 2.0 115 TOWER 10500 .6 2.1 29* 2.8 2.8 100 WEBBER SPRINGS 9250 .1 1.1 9* 2.8 2.2 127 WILLOW CREEK PASS 9540 1.9 .7 271* -M 1.5 * ----- ----- Basin wide percent of average 49* 119 LOWER N. PLATTE - SWEETWATER - LARAMIE BROOKLYN LAKE 10240 .2 1.5 13* 2.5 1.8 139 CASPER MTN. 7900 1.4 1.2 117* 4.9 1.9 258 DEADMAN HILL 10220 1.0 1.6 63* 2.0 1.9 105 DEER PARK 9700 .9 1.2 75* 2.4 1.9 126 LAPRELE CREEK 8375 .0 .6 0* 1.9 1.4 136 RENO HILL 8400 1.4 1.3 108* 3.2 1.9 168 ROACH 9700 .6 .7 86* 2.2 1.7 129 SAND LAKE 10050 2.3 2.3 100* 3.0 2.2 136 SOUTH PASS 9040 .5 1.1 45* 2.1 1.5 140 WINDY PEAK 7900 .2 .3 67* 1.2 1.3 92 ----- ----- Basin wide percent of average 72* 145 LITTLE SNAKE RIVER BATTLE MOUNTAIN 7440 .0 .3 0* 1.4 1.4 100 DIVIDE PEAK 8880 .1 1.2 8* 2.5 2.0 125 OLD BATTLE 10000 1.7 2.0 85* 3.1 2.6 119 SANDSTONE RS 8150 .0 .3 0* 1.4 1.7 82 WHISKEY PARK 8950 .0 1.1 0* 2.8 2.2 127 ----- ----- Basin wide percent of average 37* 113 UPPER GREEN RIVER BIG SANDY OPENING 9080 .9 .8 113* 1.9 1.3 146 BLIND BULL SUM 8650 .7 1.0 70* 2.1 1.6 131 EAST RIM DIVIDE 7930 .2 .3 67* 2.2 1.0 220 ELKHART PARK G.S. 9400 .8 .5 160* 2.6 1.5 173 GROS VENTRE SUMMIT 8750 .4 1.0 40* 2.0 1.4 143 GUNSIGHT PASS 9820 .8 -M * 2.5 -M * KENDALL R.S. 7740 .1 .3 33* 2.2 1.1 200 LOOMIS PARK 8240 .1 .5 20* 2.5 1.3 192 NEW FORK LAKE 8340 .1 .3 33* 2.5 1.1 227 POCKET CREEK 9360 1.5 -M * 2.6 -M * SNIDER BASIN 8060 .1 .4 25* 1.6 1.1 145 SPRING CREEK DIVIDE 9000 1.3 .9 144* 3.2 1.7 188 TRIPLE PEAK 8500 .1 .7 14* 2.8 1.6 175 ----- ----- Basin wide percent of average 72* 174 LOWER GREEN RIVER HAMS FORK 7840 .1 .2 50* 2.5 1.0 250 HEWINTA 9519 .0 .6 0* 2.7 1.8 150 HICKERSON PARK 9145 -M .3 * -M 1.3 * HOLE-IN-ROCK 9150 .3 .3 100* 2.9 1.3 223 INDIAN CREEK 9425 1.7 .9 189* 3.2 1.8 178 KELLEY R.S. 8180 .2 .6 33* 2.9 1.5 193 STEEL CREEK PARK 10200 1.5 1.2 125* 3.3 1.7 194 ----- ----- Basin wide percent of average 100* 192 UPPER BEAR RIVER BUG LAKE 7950 .1 .9 11* 1.5 1.7 88 HAYDEN FORK 9212 .1 .6 17* 3.9 1.8 217 KELLEY R.S. 8180 .2 .6 33* 2.9 1.5 193 LILY LAKE 9156 .0 .7 0* 2.7 1.8 150 MONTE CRISTO 8960 .3 1.1 27* 2.3 2.1 110 SALT RIVER SUMMIT 7760 .0 .1 0* 2.2 1.4 157 TRIAL LAKE 9992 .5 1.4 36* 2.4 2.0 120 ----- ----- Basin wide percent of average 22* 146 ----------------------------------------------------------------------------- -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.