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 THURSDAY: OCTOBER 20 , 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 .2 50* 3.2 1.2 267 COTTONWOOD CREEK 7670 .1 .3 33* 4.3 1.7 253 GRAND TARGHEE 9260 2.5 -M * 4.9 -M * GRANITE CREEK 6770 .0 .2 0* 2.3 1.0 230 GRASSY LAKE 7265 .0 .5 0* 5.0 1.9 263 GROS VENTRE SUMMIT 8750 .4 .8 50* 2.1 1.1 191 GUNSIGHT PASS 9820 .9 -M * 2.4 -M * LEWIS LAKE DIVIDE 7850 .2 .3 67* 4.1 1.7 241 PHILLIPS BENCH 8200 .0 .5 0* 2.5 1.3 192 SALT RIVER SUMMIT 7760 .0 .0 100* 2.2 1.1 200 SNAKE RIVER STATION 6920 .0 .1 0* 3.4 1.3 262 SPRING CREEK DIVIDE 9000 1.3 .6 217* 3.2 1.4 229 THUMB DIVIDE 7980 .0 .3 0* 2.3 1.3 177 TOGWOTEE PASS 9580 1.4 1.4 100* 2.8 1.6 175 TWO OCEAN PLATEAU 9240 3.0 1.7 176* 3.5 1.8 194 WILLOW CREEK 8380 .1 .8 13* 4.9 2.2 223 ----- ----- Basin wide percent of average 86* 222 UPPER YELLOWSTONE-MADISON BEARTOOTH LAKE 9360 1.2 1.7 71* 2.0 1.2 167 BLACK BEAR 8170 1.9 1.1 173* 4.7 1.9 247 CANYON 7870 .0 .3 0* 1.4 1.0 140 FISHER CREEK 9100 1.4 1.3 108* 3.4 1.9 179 MADISON PLATEAU 7750 .0 .6 0* 3.6 1.5 240 NORTHEAST ENTRANCE 7350 .0 .1 0* 1.6 1.0 160 PARKER PEAK 9400 .0 1.8 0* 2.0 1.5 133 SYLVAN LAKE 8420 .0 1.1 0* 3.5 1.6 219 THUMB DIVIDE 7980 .0 .3 0* 2.3 1.3 177 TWO OCEAN PLATEAU 9240 3.0 1.7 176* 3.5 1.8 194 WHISKEY CREEK 6800 .0 .2 0* 3.2 1.3 246 WHITE MILL 8700 .8 .9 89* 2.7 1.6 169 WOLVERINE 7650 .0 .2 0* 1.6 1.2 133 ----- ----- Basin wide percent of average 73* 189 WIND RIVER BURROUGHS CREEK 8750 .0 .4 0* 1.3 1.0 130 CASTLE CREEK 8400 .0 -M * 1.1 -M * COLD SPRINGS 9630 .0 .6 0* 1.6 1.1 145 DEER PARK 9700 .9 1.1 82* 2.4 1.4 171 HOBBS PARK 10100 1.7 1.4 121* 2.3 1.3 177 LITTLE WARM 9370 .0 .7 0* 1.6 1.0 160 SOUTH PASS 9040 .7 .7 100* 2.1 1.2 175 ST. LAWRENCE ALT 8620 .0 .5 0* 1.0 1.1 91 TOGWOTEE PASS 9580 1.4 1.4 100* 2.8 1.6 175 TOWNSEND CREEK 8700 .0 .6 0* 2.3 1.3 177 ----- ----- Basin wide percent of average 64* 158 BIGHORN BASIN BALD MTN. 9380 2.8 1.8 156* 3.2 1.5 213 BEAR TRAP MEADOW 8200 .0 .4 0* 1.8 1.1 164 BLACKWATER 9780 2.5 2.1 119* 2.9 1.6 181 BONE SPRINGS DIV 9350 3.1 1.7 182* 3.8 1.6 238 EVENING STAR 9200 .0 1.6 0* 2.9 1.6 181 GRAVE SPRINGS 8550 .0 .7 0* 1.9 1.4 136 KIRWIN 9550 1.6 1.1 145* 2.7 1.1 245 MARQUETTE 8760 .0 -M * 3.2 1.4 229 MIDDLE POWDER 7760 .9 .9 100* 3.9 1.7 229 OWL CREEK 8975 .8 .6 133 1.5 .7 214 POWDER RIVER PASS 9480 1.7 .8 213* 2.8 1.3 215 SHELL CREEK 9580 3.6 1.9 189 3.4 1.3 262 SYLVAN LAKE 8420 .0 1.1 0* 3.5 1.6 219 SYLVAN ROAD 7120 .0 .2 0* 1.9 1.1 173 TIMBER CREEK 7950 .0 .6 0 3.5 1.0 350 YOUNTS PEAK 8350 .0 .7 0* 2.2 1.2 183 ----- ----- Basin wide percent of average 105* 213 SHOSHONE RIVER BLACKWATER 9780 2.5 2.1 119* 2.9 1.6 181 EVENING STAR 9200 .0 1.6 0* 2.9 1.6 181 KIRWIN 9550 1.6 1.1 145* 2.7 1.1 245 MARQUETTE 8760 .0 -M * 3.2 1.4 229 SYLVAN LAKE 8420 .0 1.1 0* 3.5 1.6 219 SYLVAN ROAD 7120 .0 .2 0* 1.9 1.1 173 YOUNTS PEAK 8350 .0 .7 0* 2.2 1.2 183 ----- ----- Basin wide percent of average 60* 201 POWDER-TONGUE BEAR TRAP MEADOW 8200 .0 .4 0* 1.8 1.1 164 BIG GOOSE 7990 1.4 .5 280* 4.0 1.4 286 BONE SPRINGS DIV 9350 3.1 1.7 182* 3.8 1.6 238 BURGESS JUNCTION 7880 1.3 1.0 130* 3.9 1.5 260 CLOUD PEAK RESERVOIR 9860 1.5 .9 167* 3.4 1.7 200 DOME LAKE 8880 2.1 1.1 191* 4.1 1.6 256 GRAVE SPRINGS 8550 .0 .7 0* 1.9 1.4 136 HANSEN SAWMILL 8360 .0 .4 0* 1.6 1.2 133 LITTLE GOOSE 8870 1.6 -M * 4.4 -M * MIDDLE POWDER 7760 .9 .9 100* 3.9 1.7 229 POWDER RIVER PASS 9480 1.7 .8 213* 2.8 1.3 215 SOLDIER PARK 8720 .0 -M * 2.4 -M * SUCKER CREEK 8880 2.4 .8 300* 3.8 1.6 238 TIE CREEK 6870 .0 .4 0* 4.2 1.7 247 ----- ----- Basin wide percent of average 150* 220 BELLE FOURCHE BLIND PARK 6890 .0 .1 0* 1.0 1.6 63 COLE CANYON 5910 .0 .4 0* 1.3 1.2 108 NORTH RAPID CREEK 6130 .0 .2 0* .5 1.6 31 ----- ----- Basin wide percent of average 0* 64 UPPER N. PLATTE RIVER BLACKHALL MTN 9820 1.7 -M * 3.2 -M * CINNABAR PARK 9574 .5 .6 83* 2.5 1.3 192 COLUMBINE 9160 .0 .1 0* 2.0 1.3 154 DIVIDE PEAK 8880 .1 1.0 10* 2.5 1.7 147 ELK RIVER 8700 .0 .2 0* 2.0 1.3 154 JOE WRIGHT 10120 .0 1.3 0* 2.3 2.1 110 NORTH FRENCH CREEK 10130 1.7 1.9 89* 3.2 1.9 168 OLD BATTLE 10000 1.7 1.6 106* 3.0 2.1 143 SAGE CREEK BASIN 7850 .0 .6 0* 1.6 1.0 160 SOUTH BRUSH CREEK 8440 .1 .3 33* 2.2 1.6 138 TOWER 10500 .7 1.6 44* 2.7 2.2 123 WEBBER SPRINGS 9250 .3 .8 38* 2.8 1.8 156 WILLOW CREEK PASS 9540 1.1 .5 220* 5.3 1.2 442 ----- ----- Basin wide percent of average 59* 165 LOWER N. PLATTE - SWEETWATER - LARAMIE BROOKLYN LAKE 10240 .5 1.2 42* 2.5 1.4 179 CASPER MTN. 7900 1.9 .9 211* 4.6 1.5 307 DEADMAN HILL 10220 .8 1.3 62* 2.0 1.5 133 DEER PARK 9700 .9 1.1 82* 2.4 1.4 171 LAPRELE CREEK 8375 .0 .4 0* 1.9 1.1 173 RENO HILL 8400 1.6 1.0 160* 3.2 1.5 213 ROACH 9700 .8 .5 160* 2.2 1.4 157 SAND LAKE 10050 2.3 1.8 128* 3.0 1.8 167 SOUTH PASS 9040 .7 .7 100* 2.1 1.2 175 WINDY PEAK 7900 .1 .2 50* 1.2 1.1 109 ----- ----- Basin wide percent of average 105* 181 LITTLE SNAKE RIVER BATTLE MOUNTAIN 7440 .1 .1 100* 1.4 1.1 127 DIVIDE PEAK 8880 .1 1.0 10* 2.5 1.7 147 OLD BATTLE 10000 1.7 1.6 106* 3.0 2.1 143 SANDSTONE RS 8150 -M .2 * 1.4 1.4 100 WHISKEY PARK 8950 .3 .8 38* 2.7 1.8 150 ----- ----- Basin wide percent of average 63* 136 UPPER GREEN RIVER BIG SANDY OPENING 9080 .8 .6 133* 1.9 1.1 173 BLIND BULL SUM 8650 .7 .7 100* 2.1 1.2 175 EAST RIM DIVIDE 7930 .3 .2 150* 2.0 .8 250 ELKHART PARK G.S. 9400 .7 .4 175* 2.6 1.2 217 GROS VENTRE SUMMIT 8750 .4 .8 50* 2.1 1.1 191 GUNSIGHT PASS 9820 .9 -M * 2.4 -M * KENDALL R.S. 7740 .1 .2 50* 2.1 .9 233 LOOMIS PARK 8240 .1 .4 25* 2.4 1.0 240 NEW FORK LAKE 8340 .1 .2 50* 2.5 .9 278 POCKET CREEK 9360 1.3 -M * 2.6 -M * SNIDER BASIN 8060 .1 .3 33* 1.7 .9 189 SPRING CREEK DIVIDE 9000 1.3 .6 217* 3.2 1.4 229 TRIPLE PEAK 8500 .4 .4 100* 2.8 1.3 215 ----- ----- Basin wide percent of average 104* 215 LOWER GREEN RIVER HAMS FORK 7840 .1 .1 100* 2.4 .8 300 HEWINTA 9519 .0 .5 0* 2.7 1.5 180 HICKERSON PARK 9145 -M .1 * -M 1.0 * HOLE-IN-ROCK 9150 .1 .2 50* 2.9 1.1 264 INDIAN CREEK 9425 1.9 .7 271* 3.2 1.4 229 KELLEY R.S. 8180 .4 .4 100* 2.9 1.2 242 STEEL CREEK PARK 10200 1.9 1.0 190* 3.2 1.4 229 ----- ----- Basin wide percent of average 152* 234 UPPER BEAR RIVER BUG LAKE 7950 .1 .7 14* 1.5 1.4 107 HAYDEN FORK 9212 .1 .5 20* 3.9 1.4 279 KELLEY R.S. 8180 .4 .4 100* 2.9 1.2 242 LILY LAKE 9156 .0 .6 0* 2.7 1.4 193 MONTE CRISTO 8960 .3 .9 33* 2.4 1.7 141 SALT RIVER SUMMIT 7760 .0 .0 100* 2.2 1.1 200 TRIAL LAKE 9992 .7 1.1 64* -M 1.6 * ----- ----- Basin wide percent of average 38* 190 ----------------------------------------------------------------------------- -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.