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 22 , 2006 ----------------------------------------------------------------------------- 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* 2.2 1.4 157 COTTONWOOD CREEK 7600 1.0 .5 200* 2.9 2.1 138 GRANITE CREEK 6770 .1 .3 33* 2.4 1.2 200 GRASSY LAKE 7265 1.4 .8 175* 5.3 2.4 221 GROS VENTRE SUMMIT 8750 1.4 .9 156* 2.4 1.3 185 LEWIS LAKE DIVIDE 7850 1.1 .6 183* 3.7 2.2 168 PHILLIPS BENCH 8200 1.0 .7 143* 3.5 1.7 206 SALT RIVER SUMMIT 7600 .2 .2 100* 1.9 1.4 136 SNAKE RIVER STATION 6920 .4 .2 200* 4.2 1.6 262 SPRING CREEK DIVIDE 9000 1.0 .8 125* 2.1 1.8 117 THUMB DIVIDE 7980 .3 .4 75* 2.1 1.4 150 TOGWOTEE PASS 9580 2.5 1.7 147* 3.1 2.0 155 TWO OCEAN PLATEAU 9240 1.4 2.0 70* 2.8 2.2 127 WILLOW CREEK 8450 1.1 1.0 110* 3.4 2.6 131 ----- ----- Basin wide percent of average 124* 166 UPPER YELLOWSTONE-MADISON BEARTOOTH LAKE 9275 1.8 1.9 95* 2.2 1.5 147 BLACK BEAR 8170 2.2 1.7 129* 5.0 2.4 208 CANYON 8090 .8 .4 200* 2.8 1.3 215 FISHER CREEK 9100 -M 1.7 * -M 2.3 * MADISON PLATEAU 7750 .7 .9 78* 2.8 1.8 156 NORTHEAST ENTRANCE 7350 .1 .2 50* 3.3 1.1 300 PARKER PEAK 9400 1.4 1.8 78* 2.9 1.6 181 SYLVAN LAKE 8420 .9 1.4 64* 4.0 1.8 222 THUMB DIVIDE 7980 .3 .4 75* 2.1 1.4 150 TWO OCEAN PLATEAU 9240 1.4 2.0 70* 2.8 2.2 127 WHISKEY CREEK 6800 .3 .4 75* -M 1.6 * WHITE MILL 8700 2.2 1.3 169* 3.6 1.9 189 WOLVERINE 7650 .1 .3 33* 1.6 1.3 123 ----- ----- Basin wide percent of average 96* 181 WIND RIVER BURROUGHS CREEK 8750 1.4 .6 233* 2.2 1.2 183 COLD SPRINGS 9630 .3 .6 50* 1.1 1.4 79 DEER PARK 9700 1.1 1.6 69* 2.3 1.8 128 HOBBS PARK 10100 1.1 1.4 79* 1.3 1.5 87 LITTLE WARM 9370 .9 .7 129* 1.0 1.2 83 SOUTH PASS 9040 .7 .9 78* 2.4 1.5 160 ST. LAWRENCE ALT 8620 .6 .4 150* 1.2 1.2 100 TOGWOTEE PASS 9580 2.5 1.7 147* 3.1 2.0 155 TOWNSEND CREEK 8700 1.1 .6 183* 2.4 1.5 160 ----- ----- Basin wide percent of average 114* 128 BIGHORN BASIN BALD MTN. 9380 4.6 2.0 230* 3.1 1.7 182 BEAR TRAP MEADOW 8200 .3 .4 75* .9 1.2 75 BLACKWATER 9780 1.3 2.2 59* 2.0 1.9 105 BONE SPRINGS DIV 9350 3.7 1.9 195 2.5 1.8 139 EVENING STAR 9200 1.9 1.9 100* 3.1 2.0 155 GRAVE SPRINGS 8550 .6 .6 100* 1.1 1.5 73 KIRWIN 9550 1.3 1.3 100* 1.8 1.3 138 MARQUETTE 8760 .5 1.4 36 1.4 1.6 87 MIDDLE POWDER 7760 1.3 .9 144* 1.3 1.8 72 OWL CREEK 8975 1.3 .5 260* 1.8 .8 225 POWDER RIVER PASS 9480 1.0 .8 125* 1.5 1.4 107 SHELL CREEK 9580 3.7 2.1 176 2.1 1.4 150 SYLVAN LAKE 8420 .9 1.4 64* 4.0 1.8 222 SYLVAN ROAD 7120 .5 .3 167* 2.8 1.5 187 TIMBER CREEK 7950 .0 .5 0* 1.5 1.2 125 YOUNTS PEAK 8350 .7 .9 78* 1.8 1.3 138 ----- ----- Basin wide percent of average 124* 135 SHOSHONE RIVER BLACKWATER 9780 1.3 2.2 59* 2.0 1.9 105 EVENING STAR 9200 1.9 1.9 100* 3.1 2.0 155 KIRWIN 9550 1.3 1.3 100* 1.8 1.3 138 MARQUETTE 8760 .5 1.4 36 1.4 1.6 87 SYLVAN LAKE 8420 .9 1.4 64* 4.0 1.8 222 SYLVAN ROAD 7120 .5 .3 167* 2.8 1.5 187 YOUNTS PEAK 8350 .7 .9 78* 1.8 1.3 138 ----- ----- Basin wide percent of average 76* 148 POWDER-TONGUE BEAR TRAP MEADOW 8200 .3 .4 75* .9 1.2 75 BIG GOOSE 7990 -M .5 * -M 1.5 * BONE SPRINGS DIV 9350 3.7 1.9 195 2.5 1.8 139 BURGESS JUNCTION 7880 1.1 1.0 110* 2.2 1.6 138 CLOUD PEAK RESERVOIR 9860 .7 .9 78* 1.2 1.8 67 DOME LAKE 8880 .7 1.2 58* 1.5 1.8 83 GRAVE SPRINGS 8550 .6 .6 100* 1.1 1.5 73 HANSEN SAWMILL 8360 .3 .5 60* .3 1.3 23 MIDDLE POWDER 7760 1.3 .9 144* 1.3 1.8 72 POWDER RIVER PASS 9480 1.0 .8 125* 1.5 1.4 107 SUCKER CREEK 8880 1.7 .9 189* 2.2 1.7 129 TIE CREEK 6870 .5 .4 125* 2.5 1.8 139 ----- ----- Basin wide percent of average 125* 97 BELLE FOURCHE BLIND PARK 6890 -M .2 * 1.5 1.8 83 COLE CANYON 5910 .2 .4 50* 1.4 -M * NORTH RAPID CREEK 6130 .3 .3 100* 1.1 1.8 61 ----- ----- Basin wide percent of average 71* 72 UPPER N. PLATTE RIVER COLUMBINE 9160 1.6 .4 400* 3.5 1.7 206 DIVIDE PEAK 8860 3.1 1.2 258* 4.7 1.9 247 ELK RIVER 8700 1.4 .3 467* 3.1 1.6 194 JOE WRIGHT 10120 2.1 1.6 131* 3.3 2.4 138 NORTH FRENCH CREEK 10130 3.1 2.2 141* 4.0 2.4 167 OLD BATTLE 9920 3.8 2.0 190* 5.1 2.5 204 SAGE CREEK BASIN 7850 2.6 .6 433* 3.4 1.1 309 SOUTH BRUSH CREEK 8440 1.5 .4 375* 2.2 1.8 122 TOWER 10500 4.5 2.1 214* 6.1 2.8 218 WEBBER SPRINGS 9250 2.3 1.1 209* 4.7 2.2 214 WILLOW CREEK PASS 9540 1.6 .7 229* 1.7 1.4 121 ----- ----- Basin wide percent of average 219* 192 LOWER N. PLATTE - SWEETWATER - LARAMIE BROOKLYN LAKE 10220 2.3 1.5 153* 3.0 1.8 167 CASPER MTN. 7850 .7 1.1 64* 1.1 1.8 61 DEADMAN HILL 10220 1.2 1.5 80* 2.1 1.8 117 DEER PARK 9700 1.1 1.6 69* 2.3 1.8 128 LAPRELE CREEK 8375 .9 .6 150* 1.2 1.4 86 RENO HILL 8500 1.6 1.2 133* 2.2 1.8 122 ROACH 9700 2.4 .7 343* 3.1 1.6 194 SAND LAKE 10050 3.0 2.2 136* 3.6 2.2 164 SOUTH PASS 9040 .7 .9 78* 2.4 1.5 160 WINDY PEAK 7900 .9 .3 300* 1.1 1.2 92 ----- ----- Basin wide percent of average 128* 131 LITTLE SNAKE RIVER BATTLE MOUNTAIN 7440 .4 .2 200* 2.5 1.4 179 DIVIDE PEAK 8860 3.1 1.2 258* 4.7 1.9 247 OLD BATTLE 9920 3.8 2.0 190* 5.1 2.5 204 SANDSTONE RS 8150 .6 .3 200* 2.8 1.6 175 WHISKEY PARK 8950 2.0 1.0 200* 4.1 2.0 205 ----- ----- Basin wide percent of average 211* 204 UPPER GREEN RIVER BIG SANDY OPENING 9080 .8 .8 100* 1.6 1.3 123 BLIND BULL SUM 8900 1.2 1.0 120* 2.0 1.6 125 EAST RIM DIVIDE 7930 .0 .3 0* 1.7 .9 189 ELKHART PARK G.S. 9400 .2 .5 40* 1.9 1.4 136 GROS VENTRE SUMMIT 8750 1.4 .9 156* 2.4 1.3 185 KENDALL R.S. 7740 -M .3 * -M 1.1 * LOOMIS PARK 8240 .3 .5 60* 2.1 1.3 162 NEW FORK LAKE 8340 .4 .2 200* 1.2 1.1 109 SNIDER BASIN 8060 .5 .4 125* 1.5 1.2 125 SPRING CREEK DIVIDE 9000 1.0 .8 125* 2.1 1.8 117 TRIPLE PEAK 8500 1.0 .7 143* 2.2 1.6 138 ----- ----- Basin wide percent of average 111* 139 LOWER GREEN RIVER HAMS FORK 7840 .1 .2 50* 1.4 1.0 140 HEWINTA 9500 .0 .6 0* 2.7 1.7 159 HICKERSON PARK 9100 .5 .2 250* 1.9 1.2 158 HOLE-IN-ROCK 9150 .6 .2 300* 2.3 1.2 192 INDIAN CREEK 9425 .9 .9 100* 2.0 1.8 111 KELLEY R.S. 8180 .4 .5 80* 1.7 1.5 113 STEEL CREEK PARK 10100 1.2 1.2 100* 2.6 1.6 162 ----- ----- Basin wide percent of average 97* 146 UPPER BEAR RIVER BUG LAKE 7950 .8 .8 100* 1.8 1.6 112 HAYDEN FORK 9100 .0 .6 0* 3.9 1.7 229 KELLEY R.S. 8180 .4 .5 80* 1.7 1.5 113 LILY LAKE 9050 .5 .6 83* 2.8 1.7 165 MONTE CRISTO 8960 1.0 1.1 91* 3.4 2.0 170 SALT RIVER SUMMIT 7600 .2 .2 100* 1.9 1.4 136 TRIAL LAKE 9960 .6 1.3 46* 3.7 2.0 185 ----- ----- Basin wide percent of average 69* 161 ----------------------------------------------------------------------------- -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.