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 25 , 2004 ----------------------------------------------------------------------------- BASIN ELEV. SNOW WATER EQUIVALENT TOTAL PRECIPITATION Data Site Name (Ft) % % Current Average Avg Current Average Avg ----------------------------------------------------------------------------- WYOMING SNAKE RIVER BASE CAMP 7030 1.0 .5 200* 2.1 1.6 131 COTTONWOOD CREEK 7600 .9 .6 150* 2.6 2.4 108 GRANITE CREEK 6770 1.3 .4 325* 3.0 1.4 214 GRASSY LAKE 7265 2.3 1.0 230* 3.0 2.7 111 GROS VENTRE SUMMIT 8750 1.7 1.1 155* 2.1 1.5 140 LEWIS LAKE DIVIDE 7850 3.5 .8 438* 4.0 2.6 154 PHILLIPS BENCH 8200 2.5 1.0 250* 3.1 1.9 163 SALT RIVER SUMMIT 7600 1.1 .2 550* 2.7 1.5 180 SNAKE RIVER STATION 6920 .6 .4 150* 2.3 1.8 128 SPRING CREEK DIVIDE 9000 2.9 1.1 264* 3.3 2.1 157 THUMB DIVIDE 7980 1.7 .6 283* 2.1 1.6 131 TOGWOTEE PASS 9580 2.0 2.0 100* 2.2 2.2 100 TWO OCEAN PLATEAU 9240 3.3 2.4 138* 3.2 2.5 128 WILLOW CREEK 8450 2.0 1.3 154* 3.3 2.9 114 ----- ----- Basin wide percent of average 200* 136 UPPER YELLOWSTONE-MADISON BEARTOOTH LAKE 9275 1.7 2.1 81* 2.1 1.7 124 BLACK BEAR 8170 5.0 2.0 250* 5.5 2.8 196 CANYON 8090 .9 .5 180* 1.8 1.5 120 FISHER CREEK 9100 2.5 2.1 119* 3.2 2.6 123 MADISON PLATEAU 7750 2.7 1.2 225* 3.7 2.0 185 NORTHEAST ENTRANCE 7350 .2 .2 100* .9 1.2 75 PARKER PEAK 9400 1.7 2.0 85* 1.8 1.9 95 SYLVAN LAKE 8420 1.5 1.5 100* 2.4 2.1 114 THUMB DIVIDE 7980 1.7 .6 283* 2.1 1.6 131 TWO OCEAN PLATEAU 9240 3.3 2.4 138* 3.2 2.5 128 WHISKEY CREEK 6800 1.5 .5 300* 3.0 1.8 167 WHITE MILL 8700 1.4 1.5 93* 2.0 2.2 91 WOLVERINE 7650 .3 .3 100* 1.2 1.5 80 ----- ----- Basin wide percent of average 144* 130 WIND RIVER BURROUGHS CREEK 8750 1.0 .7 143* 1.1 1.3 85 COLD SPRINGS 9630 1.1 .7 157* 1.7 1.5 113 DEER PARK 9700 -M 1.9 * -M 2.0 * HOBBS PARK 10100 2.6 1.6 162* 2.6 1.7 153 LITTLE WARM 9370 1.1 .8 138* 1.4 1.4 100 SOUTH PASS 9040 2.7 1.1 245* 3.6 1.7 212 ST. LAWRENCE ALT 8620 .5 .6 83* 1.5 1.4 107 TOGWOTEE PASS 9580 2.0 2.0 100* 2.2 2.2 100 TOWNSEND CREEK 8700 .8 .8 100* 2.8 1.7 165 ----- ----- Basin wide percent of average 142* 131 BIGHORN BASIN BALD MTN. 9380 2.8 2.3 122* 2.8 1.9 147 BEAR TRAP MEADOW 8200 .4 .4 100* 2.0 1.4 143 BLACKWATER 9780 2.1 2.5 84* 2.1 2.2 95 BONE SPRINGS DIV 9350 3.2 2.1 152 3.1 2.0 155 EVENING STAR 9200 2.0 2.1 95* 2.9 2.2 132 GRAVE SPRINGS 8550 .4 .8 50* 1.3 1.7 76 KIRWIN 9550 1.5 1.4 107 1.2 1.5 80 MARQUETTE 8760 .1 1.5 7 .7 1.9 37 MIDDLE POWDER 7760 .4 1.0 40* 1.7 2.1 81 OWL CREEK 8975 .0 .7 0 .3 .9 33 POWDER RIVER PASS 9480 2.5 1.0 250* 3.0 1.5 200 SHELL CREEK 9580 2.8 2.2 127 2.7 1.6 169 SYLVAN LAKE 8420 1.5 1.5 100* 2.4 2.1 114 SYLVAN ROAD 7120 .4 .3 133* 2.0 1.7 118 TIMBER CREEK 7950 .0 .7 0 .5 1.3 38 YOUNTS PEAK 8350 1.1 1.1 100* 2.0 1.5 133 ----- ----- Basin wide percent of average 98* 112 SHOSHONE RIVER BLACKWATER 9780 2.1 2.5 84* 2.1 2.2 95 EVENING STAR 9200 2.0 2.1 95* 2.9 2.2 132 KIRWIN 9550 1.5 1.4 107 1.2 1.5 80 MARQUETTE 8760 .1 1.5 7 .7 1.9 37 SYLVAN LAKE 8420 1.5 1.5 100* 2.4 2.1 114 SYLVAN ROAD 7120 .4 .3 133* 2.0 1.7 118 YOUNTS PEAK 8350 1.1 1.1 100* 2.0 1.5 133 ----- ----- Basin wide percent of average 84* 102 POWDER-TONGUE BEAR TRAP MEADOW 8200 .4 .4 100* 2.0 1.4 143 BIG GOOSE 7990 .2 .7 29* 1.6 1.7 94 BONE SPRINGS DIV 9350 3.2 2.1 152 3.1 2.0 155 BURGESS JUNCTION 7880 .5 1.2 42* 1.8 1.8 100 CLOUD PEAK RESERVOIR 9860 1.5 1.1 136* 2.0 2.1 95 DOME LAKE 8880 1.6 1.4 114 2.7 2.0 135 GRAVE SPRINGS 8550 .4 .8 50* 1.3 1.7 76 HANSEN SAWMILL 8360 .3 .6 50* 1.3 1.5 87 MIDDLE POWDER 7760 .4 1.0 40* 1.7 2.1 81 POWDER RIVER PASS 9480 2.5 1.0 250* 3.0 1.5 200 SUCKER CREEK 8880 1.9 1.0 190* 2.6 1.9 137 TIE CREEK 6870 .2 .5 40* 1.7 2.0 85 ----- ----- Basin wide percent of average 111* 114 BELLE FOURCHE BLIND PARK 6890 .0 .4 0* 1.3 2.1 62 COLE CANYON 5910 .0 .5 0* .9 -M * NORTH RAPID CREEK 6130 .0 .3 0* 1.0 2.0 50 ----- ----- Basin wide percent of average 0* 56 UPPER N. PLATTE RIVER COLUMBINE 9160 .7 .5 140* 2.1 1.9 111 DIVIDE PEAK 8860 1.7 1.3 131* 3.9 2.2 177 ELK RIVER 8700 .6 .5 120* 2.5 1.8 139 JOE WRIGHT 10120 3.1 1.9 163* 1.1 2.7 41 NORTH FRENCH CREEK 10130 2.3 2.5 92* 2.6 2.7 96 OLD BATTLE 9920 4.9 2.3 213* 5.9 2.9 203 SAGE CREEK BASIN 7850 .9 .7 129* 3.6 1.2 300 SOUTH BRUSH CREEK 8440 .6 .6 100* 1.4 2.1 67 TOWER 10500 4.9 2.6 188* 3.7 3.2 116 WEBBER SPRINGS 9250 2.9 1.4 207* 4.2 2.5 168 WILLOW CREEK PASS 9540 1.0 .8 125* 1.5 1.6 94 ----- ----- Basin wide percent of average 156* 131 LOWER N. PLATTE - SWEETWATER - LARAMIE BROOKLYN LAKE 10220 .5 1.7 29* 1.4 2.0 70 CASPER MTN. 7850 .0 1.3 0* 1.4 2.0 70 DEADMAN HILL 10220 2.8 1.7 165* 1.8 2.0 90 DEER PARK 9700 -M 1.9 * -M 2.0 * LAPRELE CREEK 8375 .1 .8 12* 1.4 1.5 93 RENO HILL 8500 .2 1.3 15* 1.1 2.0 55 ROACH 9700 .7 .9 78* 4.8 1.9 253 SAND LAKE 10050 3.5 2.5 140* 2.4 2.5 96 SOUTH PASS 9040 2.7 1.1 245* 3.6 1.7 212 WINDY PEAK 7900 .0 .4 0* .9 1.4 64 ----- ----- Basin wide percent of average 90* 111 LITTLE SNAKE RIVER BATTLE MOUNTAIN 7440 .6 .4 150* 2.1 1.5 140 DIVIDE PEAK 8860 1.7 1.3 131* 3.9 2.2 177 OLD BATTLE 9920 4.9 2.3 213* 5.9 2.9 203 SANDSTONE RS 8150 .0 .4 0* 2.3 1.9 121 WHISKEY PARK 8950 1.7 1.3 131* 2.7 2.3 117 ----- ----- Basin wide percent of average 156* 156 UPPER GREEN RIVER BIG SANDY OPENING 9080 -M .9 * 4.1 1.5 273 BLIND BULL SUM 8900 2.2 1.2 183* 2.4 1.8 133 EAST RIM DIVIDE 7930 .4 .4 100* 1.2 1.1 109 ELKHART PARK G.S. 9400 2.5 .6 417* 3.2 1.5 213 GROS VENTRE SUMMIT 8750 1.7 1.1 155* 2.1 1.5 140 KENDALL R.S. 7740 1.2 .4 300* 2.4 1.2 200 LOOMIS PARK 8240 1.6 .7 229* 2.3 1.5 153 NEW FORK LAKE 8340 .8 .4 200* 1.3 1.2 108 SNIDER BASIN 8060 1.5 .5 300* 2.2 1.3 169 SPRING CREEK DIVIDE 9000 2.9 1.1 264* 3.3 2.1 157 TRIPLE PEAK 8500 1.2 .8 150* 2.1 1.8 117 ----- ----- Basin wide percent of average 222* 161 LOWER GREEN RIVER HAMS FORK 7840 1.1 .3 367* 2.6 1.2 217 HEWINTA 9500 .5 .7 71* 2.1 1.9 111 HICKERSON PARK 9100 1.1 .3 367* 2.6 1.4 186 HOLE-IN-ROCK 9150 .9 .3 300* 2.3 1.3 177 INDIAN CREEK 9425 3.7 1.1 336* 3.8 2.1 181 KELLEY R.S. 8180 2.7 .7 386* 3.4 1.7 200 STEEL CREEK PARK 10100 2.4 1.3 185* 2.5 1.9 132 ----- ----- Basin wide percent of average 264* 168 UPPER BEAR RIVER BUG LAKE 7950 1.7 1.0 170* 3.4 1.9 179 HAYDEN FORK 9100 2.4 .7 343* 4.7 1.9 247 KELLEY R.S. 8180 2.7 .7 386* 3.4 1.7 200 LILY LAKE 9050 1.6 .8 200* 3.7 1.9 195 MONTE CRISTO 8960 4.1 1.3 315* 4.6 2.2 209 SALT RIVER SUMMIT 7600 1.1 .2 550* 2.7 1.5 180 TRIAL LAKE 9960 4.7 1.5 313* 6.0 2.2 273 ----- ----- Basin wide percent of average 295* 214 ----------------------------------------------------------------------------- -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.