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 15 , 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 .1 100* 1.7 .9 189 COTTONWOOD CREEK 7600 .0 .1 0* 1.7 1.4 121 GRANITE CREEK 6770 .0 .1 0* 1.3 .8 162 GRASSY LAKE 7265 .1 .3 33* 1.5 1.6 94 GROS VENTRE SUMMIT 8750 .7 .6 117* 1.8 .9 200 LEWIS LAKE DIVIDE 7850 .2 .1 200* 1.0 1.5 67 PHILLIPS BENCH 8200 .0 .2 0* 1.4 1.1 127 SALT RIVER SUMMIT 7600 .1 .0 * 1.1 .9 122 SNAKE RIVER STATION 6920 .0 .0 100* 1.6 1.0 160 SPRING CREEK DIVIDE 9000 .1 .3 33* 1.0 1.2 83 THUMB DIVIDE 7980 .1 .1 100* 1.9 .9 211 TOGWOTEE PASS 9580 1.6 1.0 160* 2.4 1.3 185 TWO OCEAN PLATEAU 9240 2.1 1.2 175* 2.8 1.4 200 WILLOW CREEK 8450 .1 .4 25* 1.9 1.7 112 ----- ----- Basin wide percent of average 113* 139 UPPER YELLOWSTONE-MADISON BEARTOOTH LAKE 9275 2.0 1.3 154* 1.9 1.0 190 BLACK BEAR 8170 .8 .8 100* 2.2 1.6 138 CANYON 8090 .4 .2 200* 2.0 .9 222 FISHER CREEK 9100 2.6 1.0 260* 3.0 1.5 200 MADISON PLATEAU 7750 .5 .4 125* 2.1 1.2 175 NORTHEAST ENTRANCE 7350 -M .1 * -M .7 * PARKER PEAK 9400 1.7 1.2 142* 2.5 1.1 227 SYLVAN LAKE 8420 .1 .9 11* 2.2 1.2 183 THUMB DIVIDE 7980 .1 .1 100* 1.9 .9 211 TWO OCEAN PLATEAU 9240 2.1 1.2 175* 2.8 1.4 200 WHISKEY CREEK 6800 .2 .1 200* 2.2 1.0 220 WHITE MILL 8700 1.9 .7 271* 2.2 1.3 169 WOLVERINE 7650 .0 .1 0* 1.4 .9 156 ----- ----- Basin wide percent of average 155* 189 WIND RIVER BURROUGHS CREEK 8750 .3 .3 100* 1.5 .8 188 COLD SPRINGS 9630 .1 .2 50* 1.7 .9 189 DEER PARK 9700 .8 .8 100* 2.3 1.2 192 HOBBS PARK 10100 .9 .7 129* 2.3 1.0 230 LITTLE WARM 9370 .2 .4 50* 1.5 .8 188 SOUTH PASS 9040 .1 .4 25* 1.6 1.0 160 ST. LAWRENCE ALT 8620 .1 .1 100* 1.1 .8 138 TOGWOTEE PASS 9580 1.6 1.0 160* 2.4 1.3 185 TOWNSEND CREEK 8700 .0 .3 0* 2.0 1.0 200 ----- ----- Basin wide percent of average 98* 186 BIGHORN BASIN BALD MTN. 9380 1.3 1.5 87* 1.9 1.1 173 BEAR TRAP MEADOW 8200 .1 .2 50* .9 .8 112 BLACKWATER 9780 1.9 1.5 127* 2.3 1.3 177 BONE SPRINGS DIV 9350 -M 1.3 * -M 1.2 * EVENING STAR 9200 1.7 1.2 142* 2.6 1.3 200 GRAVE SPRINGS 8550 .0 .2 0* 1.2 1.0 120 KIRWIN 9550 1.8 .8 225* 2.6 .9 289 MARQUETTE 8760 .0 .9 0* 1.5 1.1 136 MIDDLE POWDER 7760 .3 .6 50* .9 1.2 75 OWL CREEK 8975 .1 .3 33* 1.6 .5 320 POWDER RIVER PASS 9480 .1 .5 20* 1.8 .9 200 SHELL CREEK 9580 1.6 1.6 100* 2.5 .9 278 SYLVAN LAKE 8420 .1 .9 11* 2.2 1.2 183 SYLVAN ROAD 7120 .0 .1 0* 2.0 1.0 200 TIMBER CREEK 7950 .1 .1 100* 2.1 .8 262 YOUNTS PEAK 8350 .8 .6 133* 1.9 .9 211 ----- ----- Basin wide percent of average 90* 188 SHOSHONE RIVER BLACKWATER 9780 1.9 1.5 127* 2.3 1.3 177 EVENING STAR 9200 1.7 1.2 142* 2.6 1.3 200 KIRWIN 9550 1.8 .8 225* 2.6 .9 289 MARQUETTE 8760 .0 .9 0* 1.5 1.1 136 SYLVAN LAKE 8420 .1 .9 11* 2.2 1.2 183 SYLVAN ROAD 7120 .0 .1 0* 2.0 1.0 200 YOUNTS PEAK 8350 .8 .6 133* 1.9 .9 211 ----- ----- Basin wide percent of average 105* 196 POWDER-TONGUE BEAR TRAP MEADOW 8200 .1 .2 50* .9 .8 112 BIG GOOSE 7990 .2 .3 67* 1.6 1.0 160 BONE SPRINGS DIV 9350 -M 1.3 * -M 1.2 * BURGESS JUNCTION 7880 .0 .6 0* 1.2 1.0 120 CLOUD PEAK RESERVOIR 9860 .9 .4 225* 2.5 1.2 208 DOME LAKE 8880 .2 .7 29* 2.1 1.2 175 GRAVE SPRINGS 8550 .0 .2 0* 1.2 1.0 120 HANSEN SAWMILL 8360 .3 .2 150* 1.6 .9 178 MIDDLE POWDER 7760 .3 .6 50* .9 1.2 75 POWDER RIVER PASS 9480 .1 .5 20* 1.8 .9 200 SUCKER CREEK 8880 .1 .5 20* 1.0 1.1 91 TIE CREEK 6870 .0 .0 100* 1.2 1.2 100 ----- ----- Basin wide percent of average 52* 139 BELLE FOURCHE BLIND PARK 6890 .0 .0 100* .7 1.2 58 COLE CANYON 5910 .0 .0 100* .5 -M * NORTH RAPID CREEK 6130 -M .1 * .6 1.2 50 ----- ----- Basin wide percent of average * 54 UPPER N. PLATTE RIVER COLUMBINE 9160 .0 .0 100* 2.0 1.1 182 DIVIDE PEAK 8860 -M .7 * -M 1.3 * ELK RIVER 8700 .0 .1 0* 1.4 1.0 140 JOE WRIGHT 10120 1.4 .8 175* 3.2 1.6 200 NORTH FRENCH CREEK 10130 .3 1.4 21* 1.7 1.6 106 OLD BATTLE 9920 .8 1.1 73* 2.3 1.7 135 SAGE CREEK BASIN 7850 .0 .3 0* 1.4 .7 200 SOUTH BRUSH CREEK 8440 .1 .2 50* 1.3 1.2 108 TOWER 10500 .4 1.0 40* 2.3 1.9 121 WEBBER SPRINGS 9250 .4 .5 80* 2.0 1.4 143 WILLOW CREEK PASS 9540 1.0 .3 333* 1.6 .9 178 ----- ----- Basin wide percent of average 77* 147 LOWER N. PLATTE - SWEETWATER - LARAMIE BROOKLYN LAKE 10220 .2 .9 22* 1.2 1.2 100 CASPER MTN. 7850 .0 .6 0* 1.4 1.2 117 DEADMAN HILL 10220 1.9 .9 211* 2.1 1.2 175 DEER PARK 9700 .8 .8 100* 2.3 1.2 192 LAPRELE CREEK 8375 .0 .3 0* .7 .9 78 RENO HILL 8500 .2 .7 29* 1.2 1.2 100 ROACH 9700 1.2 .3 400* 2.1 1.1 191 SAND LAKE 10050 1.6 1.3 123* 2.2 1.4 157 SOUTH PASS 9040 .1 .4 25* 1.6 1.0 160 WINDY PEAK 7900 .0 .1 0* .6 .8 75 ----- ----- Basin wide percent of average 95* 137 LITTLE SNAKE RIVER BATTLE MOUNTAIN 7440 .0 .0 100* .8 .9 89 DIVIDE PEAK 8860 -M .7 * -M 1.3 * OLD BATTLE 9920 .8 1.1 73* 2.3 1.7 135 SANDSTONE RS 8150 .0 .1 0* .9 1.1 82 WHISKEY PARK 8950 .0 .5 0* 1.6 1.4 114 ----- ----- Basin wide percent of average 47* 110 UPPER GREEN RIVER BIG SANDY OPENING 9080 .2 .4 50* 1.3 .9 144 BLIND BULL SUM 8900 .0 .4 0* .9 1.0 90 EAST RIM DIVIDE 7930 .0 .0 100* 1.1 .6 183 ELKHART PARK G.S. 9400 .0 .2 0* 1.3 .9 144 GROS VENTRE SUMMIT 8750 .7 .6 117* 1.8 .9 200 KENDALL R.S. 7740 .1 .0 * 1.0 .7 143 LOOMIS PARK 8240 .0 .2 0* 1.1 .9 122 NEW FORK LAKE 8340 .0 .0 100* 1.1 .7 157 SNIDER BASIN 8060 .2 .1 200* .6 .8 75 SPRING CREEK DIVIDE 9000 .1 .3 33* 1.0 1.2 83 TRIPLE PEAK 8500 .1 .2 50* .9 1.0 90 ----- ----- Basin wide percent of average 54* 126 LOWER GREEN RIVER HAMS FORK 7840 .0 .0 100* .8 .7 114 HEWINTA 9500 .0 .4 0* 3.1 1.1 282 HICKERSON PARK 9100 -M .0 * -M .8 * HOLE-IN-ROCK 9150 .0 .0 100* 2.8 .8 350 INDIAN CREEK 9425 .1 .4 25* 1.2 1.2 100 KELLEY R.S. 8180 .0 .2 0* 1.5 1.0 150 STEEL CREEK PARK 10100 2.2 .8 275* 3.1 1.1 282 ----- ----- Basin wide percent of average 128* 212 UPPER BEAR RIVER BUG LAKE 7950 .1 .5 20* .5 1.1 45 HAYDEN FORK 9100 .1 .4 25* 1.5 1.1 136 KELLEY R.S. 8180 .0 .2 0* 1.5 1.0 150 LILY LAKE 9050 .0 .4 0* 2.1 1.1 191 MONTE CRISTO 8960 .0 .7 0* 1.5 1.3 115 SALT RIVER SUMMIT 7600 .1 .0 * 1.1 .9 122 TRIAL LAKE 9960 .0 .8 0* 1.0 1.3 77 ----- ----- Basin wide percent of average 7* 118 ----------------------------------------------------------------------------- -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.