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 WEDNESDAY: OCTOBER 25 , 2006 ----------------------------------------------------------------------------- BASIN ELEV. SNOW WATER EQUIVALENT TOTAL PRECIPITATION Data Site Name (Ft) % % Current Average Avg Current Average Avg ----------------------------------------------------------------------------- WYOMING SNAKE RIVER BASE CAMP 7030 .1 .5 20* 2.2 1.6 138 COTTONWOOD CREEK 7600 1.2 .6 200* 2.9 2.4 121 GRANITE CREEK 6770 .1 .4 25* 2.5 1.4 179 GRASSY LAKE 7265 1.6 1.0 160* 5.6 2.7 207 GROS VENTRE SUMMIT 8750 1.5 1.1 136* 2.5 1.5 167 LEWIS LAKE DIVIDE 7850 1.3 .8 162* 4.0 2.6 154 PHILLIPS BENCH 8200 1.1 1.0 110* 3.5 1.9 184 SALT RIVER SUMMIT 7600 .3 .2 150* 2.0 1.5 133 SNAKE RIVER STATION 6920 .2 .4 50* 4.2 1.8 233 SPRING CREEK DIVIDE 9000 1.1 1.1 100* 2.2 2.1 105 THUMB DIVIDE 7980 .3 .6 50* 2.2 1.6 138 TOGWOTEE PASS 9580 2.5 2.0 125* 3.2 2.2 145 TWO OCEAN PLATEAU 9240 1.6 2.4 67* 2.9 2.5 116 WILLOW CREEK 8450 1.1 1.3 85* 3.3 2.9 114 ----- ----- Basin wide percent of average 104* 151 UPPER YELLOWSTONE-MADISON BEARTOOTH LAKE 9275 2.1 2.1 100* 2.6 1.7 153 BLACK BEAR 8170 2.4 2.0 120* 5.1 2.8 182 CANYON 8090 .9 .5 180* 2.8 1.5 187 FISHER CREEK 9100 -M 2.1 * -M 2.6 * MADISON PLATEAU 7750 .8 1.2 67* 2.9 2.0 145 NORTHEAST ENTRANCE 7350 .0 .2 0* 3.4 1.2 283 PARKER PEAK 9400 1.6 2.0 80* 3.0 1.9 158 SYLVAN LAKE 8420 1.1 1.5 73* 4.1 2.1 195 THUMB DIVIDE 7980 .3 .6 50* 2.2 1.6 138 TWO OCEAN PLATEAU 9240 1.6 2.4 67* 2.9 2.5 116 WHISKEY CREEK 6800 .1 .5 20* -M 1.8 * WHITE MILL 8700 2.4 1.5 160* 3.9 2.2 177 WOLVERINE 7650 .1 .3 33* 1.8 1.5 120 ----- ----- Basin wide percent of average 91* 165 WIND RIVER BURROUGHS CREEK 8750 1.5 .7 214* 2.4 1.3 185 COLD SPRINGS 9630 .4 .7 57* 1.2 1.5 80 DEER PARK 9700 1.3 1.9 68 2.4 2.0 120 HOBBS PARK 10100 1.2 1.6 75* 1.5 1.7 88 LITTLE WARM 9370 1.0 .8 125* 1.3 1.4 93 SOUTH PASS 9040 .9 1.1 82* 2.3 1.7 135 ST. LAWRENCE ALT 8620 .7 .6 117* 1.2 1.4 86 TOGWOTEE PASS 9580 2.5 2.0 125* 3.2 2.2 145 TOWNSEND CREEK 8700 1.3 .8 162* 2.9 1.7 171 ----- ----- Basin wide percent of average 106* 123 BIGHORN BASIN BALD MTN. 9380 4.6 2.3 200* 3.4 1.9 179 BEAR TRAP MEADOW 8200 .4 .4 100* 1.1 1.4 79 BLACKWATER 9780 1.6 2.5 64* 2.2 2.2 100 BONE SPRINGS DIV 9350 3.7 2.1 176 2.8 2.0 140 EVENING STAR 9200 2.0 2.1 95* 3.7 2.2 168 GRAVE SPRINGS 8550 .7 .8 87* 1.1 1.7 65 KIRWIN 9550 1.5 1.4 107 2.2 1.5 147 MARQUETTE 8760 .8 1.5 53 1.6 1.9 84 MIDDLE POWDER 7760 1.1 1.0 110* 1.4 2.1 67 OWL CREEK 8975 1.4 .7 200 1.8 .9 200 POWDER RIVER PASS 9480 1.1 1.0 110* 1.7 1.5 113 SHELL CREEK 9580 3.8 2.2 173 2.1 1.6 131 SYLVAN LAKE 8420 1.1 1.5 73* 4.1 2.1 195 SYLVAN ROAD 7120 .0 .3 0* 2.7 1.7 159 TIMBER CREEK 7950 .4 .7 57 1.4 1.3 108 YOUNTS PEAK 8350 .8 1.1 73* 2.6 1.5 173 ----- ----- Basin wide percent of average 116* 131 SHOSHONE RIVER BLACKWATER 9780 1.6 2.5 64* 2.2 2.2 100 EVENING STAR 9200 2.0 2.1 95* 3.7 2.2 168 KIRWIN 9550 1.5 1.4 107 2.2 1.5 147 MARQUETTE 8760 .8 1.5 53 1.6 1.9 84 SYLVAN LAKE 8420 1.1 1.5 73* 4.1 2.1 195 SYLVAN ROAD 7120 .0 .3 0* 2.7 1.7 159 YOUNTS PEAK 8350 .8 1.1 73* 2.6 1.5 173 ----- ----- Basin wide percent of average 75* 146 POWDER-TONGUE BEAR TRAP MEADOW 8200 .4 .4 100* 1.1 1.4 79 BIG GOOSE 7990 .5 .7 71* 1.0 1.7 59 BONE SPRINGS DIV 9350 3.7 2.1 176 2.8 2.0 140 BURGESS JUNCTION 7880 1.0 1.2 83* 2.4 1.8 133 CLOUD PEAK RESERVOIR 9860 .9 1.1 82* 1.4 2.1 67 DOME LAKE 8880 .8 1.4 57 1.5 2.0 75 GRAVE SPRINGS 8550 .7 .8 87* 1.1 1.7 65 HANSEN SAWMILL 8360 .0 .6 0* .5 1.5 33 MIDDLE POWDER 7760 1.1 1.0 110* 1.4 2.1 67 POWDER RIVER PASS 9480 1.1 1.0 110* 1.7 1.5 113 SUCKER CREEK 8880 1.7 1.0 170* 2.3 1.9 121 TIE CREEK 6870 .5 .5 100* 2.6 2.0 130 ----- ----- Basin wide percent of average 105* 91 BELLE FOURCHE BLIND PARK 6890 -M .4 * 1.6 2.1 76 COLE CANYON 5910 .4 .5 80* 1.6 -M * NORTH RAPID CREEK 6130 .5 .3 167* 1.2 2.0 60 ----- ----- Basin wide percent of average 112* 68 UPPER N. PLATTE RIVER COLUMBINE 9160 1.4 .5 280* 3.6 1.9 189 DIVIDE PEAK 8860 3.0 1.3 231* 4.8 2.2 218 ELK RIVER 8700 1.5 .5 300* 3.2 1.8 178 JOE WRIGHT 10120 2.2 1.9 116* 3.4 2.7 126 NORTH FRENCH CREEK 10130 3.2 2.5 128* 4.3 2.7 159 OLD BATTLE 9920 3.8 2.3 165* 5.6 2.9 193 SAGE CREEK BASIN 7850 2.4 .7 343* 3.4 1.2 283 SOUTH BRUSH CREEK 8440 1.5 .6 250* 2.6 2.1 124 TOWER 10500 4.5 2.6 173* 6.1 3.2 191 WEBBER SPRINGS 9250 2.3 1.4 164* 4.7 2.5 188 WILLOW CREEK PASS 9540 1.7 .8 212* 1.6 1.6 100 ----- ----- Basin wide percent of average 182* 175 LOWER N. PLATTE - SWEETWATER - LARAMIE BROOKLYN LAKE 10220 2.4 1.7 141* 3.2 2.0 160 CASPER MTN. 7850 .8 1.3 62* 1.4 2.0 70 DEADMAN HILL 10220 .9 1.7 53* 2.2 2.0 110 DEER PARK 9700 1.3 1.9 68 2.4 2.0 120 LAPRELE CREEK 8375 1.0 .8 125* 1.4 1.5 93 RENO HILL 8500 1.6 1.3 123* 2.3 2.0 115 ROACH 9700 2.5 .9 278* 3.3 1.9 174 SAND LAKE 10050 3.2 2.5 128* 3.9 2.5 156 SOUTH PASS 9040 .9 1.1 82* 2.3 1.7 135 WINDY PEAK 7900 1.0 .4 250* 1.5 1.4 107 ----- ----- Basin wide percent of average 115* 126 LITTLE SNAKE RIVER BATTLE MOUNTAIN 7440 .1 .4 25* 2.6 1.5 173 DIVIDE PEAK 8860 3.0 1.3 231* 4.8 2.2 218 OLD BATTLE 9920 3.8 2.3 165* 5.6 2.9 193 SANDSTONE RS 8150 .6 .4 150* 2.7 1.9 142 WHISKEY PARK 8950 2.0 1.3 154* 4.2 2.3 183 ----- ----- Basin wide percent of average 167* 184 UPPER GREEN RIVER BIG SANDY OPENING 9080 1.1 .9 122* 1.8 1.5 120 BLIND BULL SUM 8900 1.2 1.2 100* 2.0 1.8 111 EAST RIM DIVIDE 7930 .0 .4 0* 1.8 1.1 164 ELKHART PARK G.S. 9400 .5 .6 83* 2.1 1.5 140 GROS VENTRE SUMMIT 8750 1.5 1.1 136* 2.5 1.5 167 KENDALL R.S. 7740 -M .4 * -M 1.2 * LOOMIS PARK 8240 .4 .7 57* 2.2 1.5 147 NEW FORK LAKE 8340 .6 .4 150* 1.5 1.2 125 SNIDER BASIN 8060 .7 .5 140* 1.6 1.3 123 SPRING CREEK DIVIDE 9000 1.1 1.1 100* 2.2 2.1 105 TRIPLE PEAK 8500 1.0 .8 125* 2.3 1.8 128 ----- ----- Basin wide percent of average 105* 131 LOWER GREEN RIVER HAMS FORK 7840 .0 .3 0* 1.5 1.2 125 HEWINTA 9500 .0 .7 0* 2.6 1.9 137 HICKERSON PARK 9100 .3 .3 100* 2.1 1.4 150 HOLE-IN-ROCK 9150 .7 .3 233* 2.3 1.3 177 INDIAN CREEK 9425 1.0 1.1 91* 2.1 2.1 100 KELLEY R.S. 8180 .5 .7 71* 1.8 1.7 106 STEEL CREEK PARK 10100 1.7 1.3 131* 3.0 1.9 158 ----- ----- Basin wide percent of average 89* 134 UPPER BEAR RIVER BUG LAKE 7950 .8 1.0 80* 1.8 1.9 95 HAYDEN FORK 9100 .0 .7 0* 4.2 1.9 221 KELLEY R.S. 8180 .5 .7 71* 1.8 1.7 106 LILY LAKE 9050 .2 .8 25* 2.8 1.9 147 MONTE CRISTO 8960 1.0 1.3 77* 3.4 2.2 155 SALT RIVER SUMMIT 7600 .3 .2 150* 2.0 1.5 133 TRIAL LAKE 9960 .7 1.5 47* 3.6 2.2 164 ----- ----- Basin wide percent of average 56* 147 ----------------------------------------------------------------------------- -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.