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 TUESDAY: OCTOBER 24 , 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 .4 25* 2.2 1.6 138 COTTONWOOD CREEK 7600 1.2 .6 200* 2.9 2.3 126 GRANITE CREEK 6770 .1 .4 25* 2.4 1.3 185 GRASSY LAKE 7265 1.5 .9 167* 5.4 2.6 208 GROS VENTRE SUMMIT 8750 1.4 1.0 140* 2.4 1.4 171 LEWIS LAKE DIVIDE 7850 1.3 .7 186* 3.8 2.4 158 PHILLIPS BENCH 8200 1.0 .9 111* 3.5 1.9 184 SALT RIVER SUMMIT 7600 .3 .2 150* 2.0 1.5 133 SNAKE RIVER STATION 6920 .1 .3 33* 4.2 1.7 247 SPRING CREEK DIVIDE 9000 1.1 1.0 110* 2.2 2.0 110 THUMB DIVIDE 7980 .5 .5 100* 2.2 1.6 138 TOGWOTEE PASS 9580 2.5 1.9 132* 3.2 2.2 145 TWO OCEAN PLATEAU 9240 1.4 2.3 61* 2.8 2.4 117 WILLOW CREEK 8450 1.1 1.2 92* 3.4 2.8 121 ----- ----- Basin wide percent of average 111* 154 UPPER YELLOWSTONE-MADISON BEARTOOTH LAKE 9275 1.9 2.0 95* 2.4 1.6 150 BLACK BEAR 8170 2.2 1.9 116* 5.1 2.7 189 CANYON 8090 .9 .5 180* 2.8 1.4 200 FISHER CREEK 9100 -M 2.0 * -M 2.5 * MADISON PLATEAU 7750 .8 1.1 73* 2.9 1.9 153 NORTHEAST ENTRANCE 7350 .1 .2 50* 3.3 1.2 275 PARKER PEAK 9400 1.5 1.9 79* 2.9 1.8 161 SYLVAN LAKE 8420 1.0 1.5 67* 4.0 2.0 200 THUMB DIVIDE 7980 .5 .5 100* 2.2 1.6 138 TWO OCEAN PLATEAU 9240 1.4 2.3 61* 2.8 2.4 117 WHISKEY CREEK 6800 .1 .5 20* -M 1.7 * WHITE MILL 8700 2.3 1.4 164* 3.7 2.1 176 WOLVERINE 7650 .1 .3 33* 1.8 1.4 129 ----- ----- Basin wide percent of average 91* 169 WIND RIVER BURROUGHS CREEK 8750 1.5 .7 214* 2.4 1.3 185 COLD SPRINGS 9630 .5 .7 71* 1.2 1.5 80 DEER PARK 9700 1.3 1.8 72* 2.4 1.9 126 HOBBS PARK 10100 1.2 1.5 80* 1.5 1.6 94 LITTLE WARM 9370 1.0 .8 125* 1.3 1.3 100 SOUTH PASS 9040 .9 1.0 90* 2.3 1.6 144 ST. LAWRENCE ALT 8620 .7 .5 140* 1.2 1.3 92 TOGWOTEE PASS 9580 2.5 1.9 132* 3.2 2.2 145 TOWNSEND CREEK 8700 1.3 .7 186* 2.8 1.6 175 ----- ----- Basin wide percent of average 114* 128 BIGHORN BASIN BALD MTN. 9380 4.6 2.2 209* 3.4 1.9 179 BEAR TRAP MEADOW 8200 .3 .4 75* 1.1 1.3 85 BLACKWATER 9780 1.6 2.4 67* 2.1 2.1 100 BONE SPRINGS DIV 9350 3.7 2.0 185 2.7 1.9 142 EVENING STAR 9200 2.0 2.0 100* 3.6 2.2 164 GRAVE SPRINGS 8550 .7 .7 100* 1.1 1.6 69 KIRWIN 9550 1.4 1.4 100 2.1 1.4 150 MARQUETTE 8760 .8 1.5 53 1.6 1.8 89 MIDDLE POWDER 7760 1.1 1.0 110* 1.4 2.0 70 OWL CREEK 8975 1.4 .6 233 1.8 .9 200 POWDER RIVER PASS 9480 1.1 .9 122* 1.6 1.5 107 SHELL CREEK 9580 3.8 2.2 173 2.1 1.6 131 SYLVAN LAKE 8420 1.0 1.5 67* 4.0 2.0 200 SYLVAN ROAD 7120 .5 .3 167* 2.7 1.6 169 TIMBER CREEK 7950 .4 .6 67 1.5 1.3 115 YOUNTS PEAK 8350 .8 1.0 80* 2.2 1.4 157 ----- ----- Basin wide percent of average 122* 132 SHOSHONE RIVER BLACKWATER 9780 1.6 2.4 67* 2.1 2.1 100 EVENING STAR 9200 2.0 2.0 100* 3.6 2.2 164 KIRWIN 9550 1.4 1.4 100 2.1 1.4 150 MARQUETTE 8760 .8 1.5 53 1.6 1.8 89 SYLVAN LAKE 8420 1.0 1.5 67* 4.0 2.0 200 SYLVAN ROAD 7120 .5 .3 167* 2.7 1.6 169 YOUNTS PEAK 8350 .8 1.0 80* 2.2 1.4 157 ----- ----- Basin wide percent of average 80* 146 POWDER-TONGUE BEAR TRAP MEADOW 8200 .3 .4 75* 1.1 1.3 85 BIG GOOSE 7990 .5 .6 83* .9 1.6 56 BONE SPRINGS DIV 9350 3.7 2.0 185 2.7 1.9 142 BURGESS JUNCTION 7880 1.0 1.1 91* 2.3 1.7 135 CLOUD PEAK RESERVOIR 9860 .7 1.0 70* 1.3 2.0 65 DOME LAKE 8880 .8 1.3 62* 1.5 1.9 79 GRAVE SPRINGS 8550 .7 .7 100* 1.1 1.6 69 HANSEN SAWMILL 8360 .4 .6 67* .4 1.4 29 MIDDLE POWDER 7760 1.1 1.0 110* 1.4 2.0 70 POWDER RIVER PASS 9480 1.1 .9 122* 1.6 1.5 107 SUCKER CREEK 8880 1.7 1.0 170* 2.3 1.9 121 TIE CREEK 6870 .5 .5 100* 2.5 1.9 132 ----- ----- Basin wide percent of average 113* 92 BELLE FOURCHE BLIND PARK 6890 -M .3 * 1.5 2.0 75 COLE CANYON 5910 .3 .5 60* 1.5 -M * NORTH RAPID CREEK 6130 .5 .3 167* 1.2 1.9 63 ----- ----- Basin wide percent of average 100* 69 UPPER N. PLATTE RIVER COLUMBINE 9160 1.5 .5 300* 3.6 1.9 189 DIVIDE PEAK 8860 3.1 1.3 238* 4.8 2.1 229 ELK RIVER 8700 1.6 .4 400* 3.2 1.7 188 JOE WRIGHT 10120 2.2 1.8 122* 3.4 2.6 131 NORTH FRENCH CREEK 10130 3.2 2.4 133* 4.3 2.6 165 OLD BATTLE 9920 3.8 2.2 173* 5.5 2.7 204 SAGE CREEK BASIN 7850 2.5 .7 357* 3.4 1.2 283 SOUTH BRUSH CREEK 8440 1.5 .5 300* 2.5 2.0 125 TOWER 10500 4.6 2.4 192* 6.1 3.0 203 WEBBER SPRINGS 9250 2.3 1.3 177* 4.8 2.4 200 WILLOW CREEK PASS 9540 1.7 .8 212* 1.7 1.6 106 ----- ----- Basin wide percent of average 196* 182 LOWER N. PLATTE - SWEETWATER - LARAMIE BROOKLYN LAKE 10220 2.4 1.6 150* 3.2 1.9 168 CASPER MTN. 7850 .9 1.2 75* 1.4 1.9 74 DEADMAN HILL 10220 1.0 1.6 62* 2.2 1.9 116 DEER PARK 9700 1.3 1.8 72* 2.4 1.9 126 LAPRELE CREEK 8375 1.0 .7 143* 1.4 1.5 93 RENO HILL 8500 1.6 1.3 123* 2.3 1.9 121 ROACH 9700 2.5 .8 312* 3.3 1.8 183 SAND LAKE 10050 3.2 2.4 133* 3.8 2.4 158 SOUTH PASS 9040 .9 1.0 90* 2.3 1.6 144 WINDY PEAK 7900 1.1 .4 275* 1.5 1.3 115 ----- ----- Basin wide percent of average 124* 131 LITTLE SNAKE RIVER BATTLE MOUNTAIN 7440 .2 .3 67* 2.6 1.5 173 DIVIDE PEAK 8860 3.1 1.3 238* 4.8 2.1 229 OLD BATTLE 9920 3.8 2.2 173* 5.5 2.7 204 SANDSTONE RS 8150 .6 .4 150* 2.8 1.8 156 WHISKEY PARK 8950 2.0 1.2 167* 4.2 2.2 191 ----- ----- Basin wide percent of average 180* 193 UPPER GREEN RIVER BIG SANDY OPENING 9080 1.0 .9 111* 1.7 1.4 121 BLIND BULL SUM 8900 1.1 1.1 100* 2.0 1.7 118 EAST RIM DIVIDE 7930 .0 .4 0* 1.8 1.0 180 ELKHART PARK G.S. 9400 .4 .6 67* 2.1 1.5 140 GROS VENTRE SUMMIT 8750 1.4 1.0 140* 2.4 1.4 171 KENDALL R.S. 7740 -M .4 * -M 1.2 * LOOMIS PARK 8240 .3 .6 50* 2.1 1.4 150 NEW FORK LAKE 8340 .5 .3 167* 1.4 1.2 117 SNIDER BASIN 8060 .7 .5 140* 1.6 1.3 123 SPRING CREEK DIVIDE 9000 1.1 1.0 110* 2.2 2.0 110 TRIPLE PEAK 8500 1.0 .8 125* 2.3 1.7 135 ----- ----- Basin wide percent of average 104* 134 LOWER GREEN RIVER HAMS FORK 7840 .0 .3 0* 1.5 1.1 136 HEWINTA 9500 -M .7 * 2.6 1.9 137 HICKERSON PARK 9100 -M .3 * 2.0 1.3 154 HOLE-IN-ROCK 9150 .7 .3 233* 2.3 1.3 177 INDIAN CREEK 9425 1.0 1.0 100* 2.1 2.0 105 KELLEY R.S. 8180 .5 .6 83* 1.7 1.6 106 STEEL CREEK PARK 10100 1.7 1.3 131* 2.9 1.8 161 ----- ----- Basin wide percent of average 111* 137 UPPER BEAR RIVER BUG LAKE 7950 .8 .9 89* 1.8 1.8 100 HAYDEN FORK 9100 .0 .7 0* 4.0 1.9 211 KELLEY R.S. 8180 .5 .6 83* 1.7 1.6 106 LILY LAKE 9050 .3 .7 43* 2.8 1.9 147 MONTE CRISTO 8960 1.1 1.2 92* 3.4 2.2 155 SALT RIVER SUMMIT 7600 .3 .2 150* 2.0 1.5 133 TRIAL LAKE 9960 .7 1.4 50* 3.6 2.2 164 ----- ----- Basin wide percent of average 65* 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.