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 23 , 2011 ----------------------------------------------------------------------------- BASIN ELEV. SNOW WATER EQUIVALENT TOTAL PRECIPITATION Data Site Name (Ft) % % Current Average Avg Current Average Avg ----------------------------------------------------------------------------- WYOMING SNAKE RIVER BASE CAMP 7030 .1 .3 33* 3.2 1.4 229 COTTONWOOD CREEK 7670 .0 .4 0* 4.4 2.0 220 GRAND TARGHEE 9260 2.6 -M * 5.1 -M * GRANITE CREEK 6770 .1 .2 50* 2.4 1.2 200 GRASSY LAKE 7265 .1 .7 14* 5.2 2.3 226 GROS VENTRE SUMMIT 8750 .4 .9 44* 2.0 1.3 154 GUNSIGHT PASS 9820 .9 -M * 2.5 -M * LEWIS LAKE DIVIDE 7850 .2 .5 40* 4.3 2.1 205 PHILLIPS BENCH 8200 .0 .7 0* 2.6 1.6 163 SALT RIVER SUMMIT 7760 .0 .1 0* 2.2 1.3 169 SNAKE RIVER STATION 6920 .1 .2 50* 3.6 1.6 225 SPRING CREEK DIVIDE 9000 1.2 .8 150* 3.2 1.6 200 THUMB DIVIDE 7980 .0 .4 0* 2.6 1.5 173 TOGWOTEE PASS 9580 1.5 1.7 88* 2.9 1.9 153 TWO OCEAN PLATEAU 9240 3.4 2.0 170* 3.8 2.1 181 WILLOW CREEK 8380 .0 1.0 0* 4.9 2.6 188 ----- ----- Basin wide percent of average 72* 193 UPPER YELLOWSTONE-MADISON BEARTOOTH LAKE 9360 1.6 1.9 84* 2.4 1.5 160 BLACK BEAR 8170 1.8 1.5 120* 4.9 2.3 213 CANYON 7870 .0 .3 0* 1.7 1.2 142 FISHER CREEK 9100 1.7 1.7 100* 3.7 2.2 168 MADISON PLATEAU 7750 .0 .8 0* 3.7 1.8 206 NORTHEAST ENTRANCE 7350 .0 .1 0* 1.8 1.1 164 PARKER PEAK 9400 .7 2.0 35* 2.3 1.7 135 SYLVAN LAKE 8420 .1 1.2 8* 3.8 1.8 211 THUMB DIVIDE 7980 .0 .4 0* 2.6 1.5 173 TWO OCEAN PLATEAU 9240 3.4 2.0 170* 3.8 2.1 181 WHISKEY CREEK 6800 .1 .3 33* 3.4 1.5 227 WHITE MILL 8700 1.0 1.2 83* 3.1 1.9 163 WOLVERINE 7650 .0 .3 0* 1.8 1.3 138 ----- ----- Basin wide percent of average 76* 178 WIND RIVER BURROUGHS CREEK 8750 .2 .5 40* 1.4 1.1 127 CASTLE CREEK 8400 .2 -M * 1.2 -M * COLD SPRINGS 9630 .1 .7 14* 1.6 1.3 123 DEER PARK 9700 .9 1.1 82* 2.3 1.8 128 HOBBS PARK 10100 1.6 1.7 94* 2.4 1.5 160 LITTLE WARM 9370 .0 .7 0* 1.7 1.2 142 SOUTH PASS 9040 .6 1.0 60* 2.1 1.4 150 ST. LAWRENCE ALT 8620 .0 .6 0* 1.1 1.2 92 TOGWOTEE PASS 9580 1.5 1.7 88* 2.9 1.9 153 TOWNSEND CREEK 8700 .2 .7 29* 2.4 1.6 150 ----- ----- Basin wide percent of average 59* 138 BIGHORN BASIN BALD MTN. 9380 3.0 2.0 150* 3.3 1.8 183 BEAR TRAP MEADOW 8200 .4 .5 80* 1.8 1.3 138 BLACKWATER 9780 2.8 2.3 122* 3.2 1.9 168 BONE SPRINGS DIV 9350 3.3 1.9 174 4.1 1.9 216 EVENING STAR 9200 .9 1.8 50* 3.3 1.9 174 GRAVE SPRINGS 8550 .4 .8 50* 1.8 1.6 113 KIRWIN 9550 1.7 1.3 131 2.8 1.3 215 MARQUETTE 8760 .2 -M * 3.3 1.7 194 MIDDLE POWDER 7760 .6 1.0 60* 4.0 1.9 211 OWL CREEK 8975 .8 .7 114 1.5 .9 167 POWDER RIVER PASS 9480 1.7 .9 189* 2.8 1.4 200 SHELL CREEK 9580 3.9 2.1 186 3.4 1.5 227 SYLVAN LAKE 8420 .1 1.2 8* 3.8 1.8 211 SYLVAN ROAD 7120 .0 .2 0* 2.0 1.3 154 TIMBER CREEK 7950 .1 .6 17 3.5 1.2 292 YOUNTS PEAK 8350 .2 .9 22* 2.5 1.3 192 ----- ----- Basin wide percent of average 109* 191 SHOSHONE RIVER BLACKWATER 9780 2.8 2.3 122* 3.2 1.9 168 EVENING STAR 9200 .9 1.8 50* 3.3 1.9 174 KIRWIN 9550 1.7 1.3 131 2.8 1.3 215 MARQUETTE 8760 .2 -M * 3.3 1.7 194 SYLVAN LAKE 8420 .1 1.2 8* 3.8 1.8 211 SYLVAN ROAD 7120 .0 .2 0* 2.0 1.3 154 YOUNTS PEAK 8350 .2 .9 22* 2.5 1.3 192 ----- ----- Basin wide percent of average 74* 187 POWDER-TONGUE BEAR TRAP MEADOW 8200 .4 .5 80* 1.8 1.3 138 BIG GOOSE 7990 1.2 .6 200* 4.0 1.6 250 BONE SPRINGS DIV 9350 3.3 1.9 174 4.1 1.9 216 BURGESS JUNCTION 7880 1.2 1.0 120* 3.9 1.7 229 CLOUD PEAK RESERVOIR 9860 1.6 1.1 145* 3.6 2.0 180 DOME LAKE 8880 2.0 1.3 154* 4.2 1.9 221 GRAVE SPRINGS 8550 .4 .8 50* 1.8 1.6 113 HANSEN SAWMILL 8360 .0 .5 0* 1.7 1.4 121 LITTLE GOOSE 8870 1.3 -M * 4.4 -M * MIDDLE POWDER 7760 .6 1.0 60* 4.0 1.9 211 POWDER RIVER PASS 9480 1.7 .9 189* 2.8 1.4 200 SOLDIER PARK 8720 .0 -M * 2.4 -M * SUCKER CREEK 8880 2.3 .9 256* 3.9 1.8 217 TIE CREEK 6870 .1 .4 25* 4.2 1.9 221 ----- ----- Basin wide percent of average 136* 196 BELLE FOURCHE BLIND PARK 6890 .1 .2 50* 1.0 1.9 53 COLE CANYON 5910 .0 .6 0* 1.3 1.4 93 NORTH RAPID CREEK 6130 .1 .3 33* .7 1.9 37 ----- ----- Basin wide percent of average 18* 58 UPPER N. PLATTE RIVER BLACKHALL MTN 9820 1.6 -M * 3.2 -M * CINNABAR PARK 9574 .4 .8 50* 2.5 1.6 156 COLUMBINE 9160 .0 .2 0* 2.0 1.6 125 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 -M 1.6 * -M 2.4 * NORTH FRENCH CREEK 10130 1.8 2.2 82* 3.2 2.3 139 OLD BATTLE 10000 1.7 1.9 89* 3.1 2.5 124 SAGE CREEK BASIN 7850 .0 .7 0* 1.7 1.1 155 SOUTH BRUSH CREEK 8440 .1 .4 25* 2.3 1.9 121 TOWER 10500 .7 2.0 35* 2.8 2.6 108 WEBBER SPRINGS 9250 .1 1.1 9* 2.7 2.1 129 WILLOW CREEK PASS 9540 1.5 .7 214* -M 1.4 * ----- ----- Basin wide percent of average 56* 128 LOWER N. PLATTE - SWEETWATER - LARAMIE BROOKLYN LAKE 10240 .3 1.4 21* 2.5 1.7 147 CASPER MTN. 7900 1.6 1.1 145* 4.9 1.8 272 DEADMAN HILL 10220 1.0 1.5 67* 2.0 1.8 111 DEER PARK 9700 .9 1.1 82* 2.3 1.8 128 LAPRELE CREEK 8375 .0 .6 0* 1.9 1.3 146 RENO HILL 8400 1.5 1.2 125* 3.2 1.8 178 ROACH 9700 .6 .6 100* 2.2 1.7 129 SAND LAKE 10050 2.3 2.2 105* 3.0 2.1 143 SOUTH PASS 9040 .6 1.0 60* 2.1 1.4 150 WINDY PEAK 7900 .2 .3 67* 1.2 1.2 100 ----- ----- Basin wide percent of average 82* 152 LITTLE SNAKE RIVER BATTLE MOUNTAIN 7440 .0 .2 0* 1.4 1.3 108 DIVIDE PEAK 8880 .1 1.2 8* 2.5 2.0 125 OLD BATTLE 10000 1.7 1.9 89* 3.1 2.5 124 SANDSTONE RS 8150 .0 .3 0* 1.4 1.6 88 WHISKEY PARK 8950 .1 1.0 10* 2.8 2.1 133 ----- ----- Basin wide percent of average 41* 118 UPPER GREEN RIVER BIG SANDY OPENING 9080 1.0 .8 125* 1.9 1.3 146 BLIND BULL SUM 8650 .7 .9 78* 2.1 1.5 140 EAST RIM DIVIDE 7930 .2 .3 67* 2.1 .9 233 ELKHART PARK G.S. 9400 .8 .5 160* 2.7 1.4 193 GROS VENTRE SUMMIT 8750 .4 .9 44* 2.0 1.3 154 GUNSIGHT PASS 9820 .9 -M * 2.5 -M * KENDALL R.S. 7740 .1 .3 33* 2.2 1.1 200 LOOMIS PARK 8240 .1 .5 20* 2.5 1.2 208 NEW FORK LAKE 8340 .1 .2 50* 2.6 1.1 236 POCKET CREEK 9360 1.4 -M * 2.6 -M * SNIDER BASIN 8060 .1 .4 25* 1.7 1.0 170 SPRING CREEK DIVIDE 9000 1.2 .8 150* 3.2 1.6 200 TRIPLE PEAK 8500 .2 .6 33* 2.9 1.5 193 ----- ----- Basin wide percent of average 79* 186 LOWER GREEN RIVER HAMS FORK 7840 .1 .2 50* 2.6 1.0 260 HEWINTA 9519 .0 .6 0* 2.7 1.7 159 HICKERSON PARK 9145 -M .2 * -M 1.2 * HOLE-IN-ROCK 9150 .2 .2 100* 2.9 1.2 242 INDIAN CREEK 9425 1.8 .8 225* 3.2 1.7 188 KELLEY R.S. 8180 .2 .5 40* 2.9 1.4 207 STEEL CREEK PARK 10200 1.4 1.2 117* 3.3 1.7 194 ----- ----- Basin wide percent of average 106* 202 UPPER BEAR RIVER BUG LAKE 7950 .1 .8 13* 1.5 1.7 88 HAYDEN FORK 9212 .1 .6 17* 3.9 1.7 229 KELLEY R.S. 8180 .2 .5 40* 2.9 1.4 207 LILY LAKE 9156 .0 .7 0* 2.7 1.7 159 MONTE CRISTO 8960 .1 1.1 9* 2.4 2.0 120 SALT RIVER SUMMIT 7760 .0 .1 0* 2.2 1.3 169 TRIAL LAKE 9992 .5 1.3 38* 2.4 1.9 126 ----- ----- Basin wide percent of average 20* 154 ----------------------------------------------------------------------------- -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.