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 25 , 2007 ----------------------------------------------------------------------------- BASIN ELEV. SNOW WATER EQUIVALENT TOTAL PRECIPITATION Data Site Name (Ft) % % Current Average Avg Current Average Avg ----------------------------------------------------------------------------- WYOMING SNAKE RIVER BASE CAMP 7030 1.1 .5 220* 5.0 1.6 312 COTTONWOOD CREEK 7600 2.0 .6 333* 5.0 2.4 208 GRANITE CREEK 6770 1.3 .4 325* 4.0 1.4 286 GRASSY LAKE 7265 1.3 1.0 130* 5.8 2.7 215 GROS VENTRE SUMMIT 8750 2.0 1.1 182* 3.9 1.5 260 LEWIS LAKE DIVIDE 7850 1.3 .8 162* 5.6 2.6 215 PHILLIPS BENCH 8200 1.6 1.0 160* 5.0 1.9 263 SALT RIVER SUMMIT 7600 .2 .2 100* 2.5 1.5 167 SNAKE RIVER STATION 6920 .3 .4 75* 4.6 1.8 256 SPRING CREEK DIVIDE 9000 1.9 1.1 173* 3.4 2.1 162 THUMB DIVIDE 7980 1.1 .6 183* 4.3 1.6 269 TOGWOTEE PASS 9580 4.7 2.0 235* 5.6 2.2 255 TWO OCEAN PLATEAU 9240 5.9 2.4 246* 6.1 2.5 244 WILLOW CREEK 8450 2.7 1.3 208* 6.4 2.9 221 ----- ----- Basin wide percent of average 204* 234 UPPER YELLOWSTONE-MADISON BEARTOOTH LAKE 9275 4.6 2.1 219* 4.5 1.7 265 BLACK BEAR 8170 3.6 2.0 180* 6.0 2.8 214 CANYON 8090 1.2 .5 240* 3.9 1.5 260 FISHER CREEK 9100 5.8 2.1 276* 6.8 2.6 262 MADISON PLATEAU 7750 1.7 1.2 142* 4.7 2.0 235 NORTHEAST ENTRANCE 7350 .0 .2 0* 3.2 1.2 267 PARKER PEAK 9400 4.3 2.0 215* 5.3 1.9 279 SYLVAN LAKE 8420 2.1 1.5 140* 5.6 2.1 267 THUMB DIVIDE 7980 1.1 .6 183* 4.3 1.6 269 TWO OCEAN PLATEAU 9240 5.9 2.4 246* 6.1 2.5 244 WHISKEY CREEK 6800 .9 .5 180* 4.4 1.8 244 WHITE MILL 8700 4.2 1.5 280* 5.2 2.2 236 WOLVERINE 7650 .0 .3 0* 3.4 1.5 227 ----- ----- Basin wide percent of average 209* 250 WIND RIVER BURROUGHS CREEK 8750 2.0 .7 286* 3.9 1.3 300 COLD SPRINGS 9630 .0 .7 0* 2.3 1.5 153 DEER PARK 9700 1.7 1.9 89 3.2 2.0 160 HOBBS PARK 10100 1.5 1.6 94* 3.2 1.7 188 LITTLE WARM 9370 1.2 .8 150* 3.1 1.4 221 SOUTH PASS 9040 .4 1.1 36* 2.4 1.7 141 ST. LAWRENCE ALT 8620 .0 .6 0* 1.4 1.4 100 TOGWOTEE PASS 9580 4.7 2.0 235* 5.6 2.2 255 TOWNSEND CREEK 8700 .4 .8 50* 2.6 1.7 153 ----- ----- Basin wide percent of average 117* 186 BIGHORN BASIN BALD MTN. 9380 3.0 2.3 130* 3.8 1.9 200 BEAR TRAP MEADOW 8200 .8 .4 200* 1.9 1.4 136 BLACKWATER 9780 5.1 2.5 204* 4.9 2.2 223 BONE SPRINGS DIV 9350 2.2 2.1 105 3.9 2.0 195 EVENING STAR 9200 4.2 2.1 200* 6.4 2.2 291 GRAVE SPRINGS 8550 1.3 .8 162* 2.5 1.7 147 KIRWIN 9550 3.5 1.4 250 4.8 1.5 320 MARQUETTE 8760 .0 1.5 0 3.1 1.9 163 MIDDLE POWDER 7760 2.3 1.0 230* 2.4 2.1 114 OWL CREEK 8975 .8 .7 114 2.4 .9 267 POWDER RIVER PASS 9480 1.2 1.0 120* 3.1 1.5 207 SHELL CREEK 9580 3.9 2.2 177 4.6 1.6 287 SYLVAN LAKE 8420 2.1 1.5 140* 5.6 2.1 267 SYLVAN ROAD 7120 .5 .3 167* 5.0 1.7 294 TIMBER CREEK 7950 .0 .7 0 3.0 1.3 231 YOUNTS PEAK 8350 2.0 1.1 182* 5.3 1.5 353 ----- ----- Basin wide percent of average 152* 228 SHOSHONE RIVER BLACKWATER 9780 5.1 2.5 204* 4.9 2.2 223 EVENING STAR 9200 4.2 2.1 200* 6.4 2.2 291 KIRWIN 9550 3.5 1.4 250 4.8 1.5 320 MARQUETTE 8760 .0 1.5 0 3.1 1.9 163 SYLVAN LAKE 8420 2.1 1.5 140* 5.6 2.1 267 SYLVAN ROAD 7120 .5 .3 167* 5.0 1.7 294 YOUNTS PEAK 8350 2.0 1.1 182* 5.3 1.5 353 ----- ----- Basin wide percent of average 167* 268 POWDER-TONGUE BEAR TRAP MEADOW 8200 .8 .4 200* 1.9 1.4 136 BIG GOOSE 7990 1.9 .7 271* 4.2 1.7 247 BONE SPRINGS DIV 9350 2.2 2.1 105 3.9 2.0 195 BURGESS JUNCTION 7880 1.6 1.2 133* 3.2 1.8 178 CLOUD PEAK RESERVOIR 9860 2.9 1.1 264* 5.2 2.1 248 DOME LAKE 8880 2.1 1.4 150 4.5 2.0 225 GRAVE SPRINGS 8550 1.3 .8 162* 2.5 1.7 147 HANSEN SAWMILL 8360 1.0 .6 167* 3.1 1.5 207 MIDDLE POWDER 7760 2.3 1.0 230* 2.4 2.1 114 POWDER RIVER PASS 9480 1.2 1.0 120* 3.1 1.5 207 SUCKER CREEK 8880 1.9 1.0 190* 4.0 1.9 211 TIE CREEK 6870 .0 .5 0* 2.9 2.0 145 ----- ----- Basin wide percent of average 163* 188 BELLE FOURCHE BLIND PARK 6890 .0 .4 0* 1.5 2.1 71 COLE CANYON 5910 .0 .5 0* 1.4 -M * NORTH RAPID CREEK 6130 .0 .3 0* 1.2 2.0 60 ----- ----- Basin wide percent of average 0* 66 UPPER N. PLATTE RIVER COLUMBINE 9160 .2 .5 40* 3.6 1.9 189 DIVIDE PEAK 8860 1.4 1.3 108* 2.7 2.2 123 ELK RIVER 8700 -M .5 * 3.2 1.8 178 JOE WRIGHT 10120 2.3 1.9 121* 4.8 2.7 178 NORTH FRENCH CREEK 10130 2.3 2.5 92* 3.8 2.7 141 OLD BATTLE 9920 2.6 2.3 113* 4.3 2.9 148 SAGE CREEK BASIN 7850 .2 .7 29* 2.1 1.2 175 SOUTH BRUSH CREEK 8440 1.1 .6 183* 3.1 2.1 148 TOWER 10500 2.8 2.6 108* 4.8 3.2 150 WEBBER SPRINGS 9250 1.4 1.4 100* 3.6 2.5 144 WILLOW CREEK PASS 9540 2.1 .8 262* 3.0 1.6 188 ----- ----- Basin wide percent of average 112* 157 LOWER N. PLATTE - SWEETWATER - LARAMIE BROOKLYN LAKE 10220 1.0 1.7 59* 2.7 2.0 135 CASPER MTN. 7850 1.6 1.3 123* 3.3 2.0 165 DEADMAN HILL 10220 2.4 1.7 141* 3.3 2.0 165 DEER PARK 9700 1.7 1.9 89 3.2 2.0 160 LAPRELE CREEK 8375 .7 .8 87* 2.2 1.5 147 RENO HILL 8500 2.1 1.3 162* 3.7 2.0 185 ROACH 9700 1.9 .9 211* 3.2 1.9 168 SAND LAKE 10050 3.7 2.5 148* 4.3 2.5 172 SOUTH PASS 9040 .4 1.1 36* 2.4 1.7 141 WINDY PEAK 7900 1.1 .4 275* 1.9 1.4 136 ----- ----- Basin wide percent of average 122* 159 LITTLE SNAKE RIVER BATTLE MOUNTAIN 7440 .2 .4 50* 2.1 1.5 140 DIVIDE PEAK 8860 1.4 1.3 108* 2.7 2.2 123 OLD BATTLE 9920 2.6 2.3 113* 4.3 2.9 148 SANDSTONE RS 8150 .0 .4 0* 2.2 1.9 116 WHISKEY PARK 8950 1.1 1.3 85* 3.7 2.3 161 ----- ----- Basin wide percent of average 93* 139 UPPER GREEN RIVER BIG SANDY OPENING 9080 .9 .9 100* 2.0 1.5 133 BLIND BULL SUM 8900 1.8 1.2 150* 3.1 1.8 172 EAST RIM DIVIDE 7930 .0 .4 0* 2.1 1.1 191 ELKHART PARK G.S. 9400 1.2 .6 200* 2.6 1.5 173 GROS VENTRE SUMMIT 8750 2.0 1.1 182* 3.9 1.5 260 KENDALL R.S. 7740 .4 .4 100* 2.3 1.2 192 LOOMIS PARK 8240 1.1 .7 157* 2.4 1.5 160 NEW FORK LAKE 8340 .7 .4 175* 2.3 1.2 192 SNIDER BASIN 8060 .3 .5 60* 1.7 1.3 131 SPRING CREEK DIVIDE 9000 1.9 1.1 173* 3.4 2.1 162 TRIPLE PEAK 8500 1.4 .8 175* 4.4 1.8 244 ----- ----- Basin wide percent of average 144* 183 LOWER GREEN RIVER HAMS FORK 7840 .0 .3 0* 1.6 1.2 133 HEWINTA 9500 -M .7 * 4.3 1.9 226 HICKERSON PARK 9100 .3 .3 100* 2.7 1.4 193 HOLE-IN-ROCK 9150 .0 .3 0* 3.4 1.3 262 INDIAN CREEK 9425 1.8 1.1 164* 2.8 2.1 133 KELLEY R.S. 8180 .7 .7 100* 2.8 1.7 165 STEEL CREEK PARK 10100 3.9 1.3 300* 4.6 1.9 242 ----- ----- Basin wide percent of average 167* 193 UPPER BEAR RIVER BUG LAKE 7950 .3 1.0 30* 1.6 1.9 84 HAYDEN FORK 9100 .2 .7 29* 3.4 1.9 179 KELLEY R.S. 8180 .7 .7 100* 2.8 1.7 165 LILY LAKE 9050 .1 .8 12* 3.5 1.9 184 MONTE CRISTO 8960 .6 1.3 46* 3.5 2.2 159 SALT RIVER SUMMIT 7600 .2 .2 100* 2.5 1.5 167 TRIAL LAKE 9960 1.3 1.5 87* 2.7 2.2 123 ----- ----- Basin wide percent of average 55* 150 ----------------------------------------------------------------------------- -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.