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 27 , 2004 ----------------------------------------------------------------------------- BASIN ELEV. SNOW WATER EQUIVALENT TOTAL PRECIPITATION Data Site Name (Ft) % % Current Average Avg Current Average Avg ----------------------------------------------------------------------------- WYOMING SNAKE RIVER BASE CAMP 7030 1.1 .5 220* 2.2 1.8 122 COTTONWOOD CREEK 7600 1.1 .7 157* 2.8 2.6 108 GRANITE CREEK 6770 1.6 .5 320* 3.2 1.5 213 GRASSY LAKE 7265 2.4 1.1 218* 3.4 2.9 117 GROS VENTRE SUMMIT 8750 2.1 1.2 175* 2.2 1.6 138 LEWIS LAKE DIVIDE 7850 3.6 .9 400* 4.2 2.8 150 PHILLIPS BENCH 8200 2.7 1.1 245* 3.3 2.1 157 SALT RIVER SUMMIT 7600 1.3 .3 433* 3.0 1.7 176 SNAKE RIVER STATION 6920 .8 .4 200* 2.3 1.9 121 SPRING CREEK DIVIDE 9000 3.6 1.2 300* 4.0 2.3 174 THUMB DIVIDE 7980 1.7 .7 243* 2.2 1.8 122 TOGWOTEE PASS 9580 2.4 2.2 109* 2.5 2.4 104 TWO OCEAN PLATEAU 9240 3.4 2.6 131* 3.2 2.7 119 WILLOW CREEK 8450 2.0 1.5 133* 3.5 3.2 109 ----- ----- Basin wide percent of average 200* 134 UPPER YELLOWSTONE-MADISON BEARTOOTH LAKE 9275 1.8 2.3 78* 2.1 1.8 117 BLACK BEAR 8170 5.1 2.3 222* 5.6 3.0 187 CANYON 8090 .9 .6 150* 2.0 1.6 125 FISHER CREEK 9100 2.5 2.3 109* 3.4 2.9 117 MADISON PLATEAU 7750 2.8 1.3 215* 3.9 2.2 177 NORTHEAST ENTRANCE 7350 .2 .2 100* .9 1.3 69 PARKER PEAK 9400 1.9 2.2 86* 2.0 2.0 100 SYLVAN LAKE 8420 1.6 1.7 94* 2.5 2.3 109 THUMB DIVIDE 7980 1.7 .7 243* 2.2 1.8 122 TWO OCEAN PLATEAU 9240 3.4 2.6 131* 3.2 2.7 119 WHISKEY CREEK 6800 -M .6 * -M 1.9 * WHITE MILL 8700 1.5 1.7 88* 2.1 2.3 91 WOLVERINE 7650 .3 .4 75* 1.3 1.6 81 ----- ----- Basin wide percent of average 130* 122 WIND RIVER BURROUGHS CREEK 8750 1.2 .8 150* 1.4 1.4 100 COLD SPRINGS 9630 1.3 .8 162* 1.8 1.7 106 DEER PARK 9700 4.5 2.1 214 5.4 2.2 245 HOBBS PARK 10100 2.6 1.8 144 2.8 1.8 156 LITTLE WARM 9370 1.3 .9 144* 1.6 1.5 107 SOUTH PASS 9040 3.2 1.2 267* 4.0 1.8 222 ST. LAWRENCE ALT 8620 .7 .7 100* 1.5 1.5 100 TOGWOTEE PASS 9580 2.4 2.2 109* 2.5 2.4 104 TOWNSEND CREEK 8700 1.0 .9 111* 3.1 1.8 172 ----- ----- Basin wide percent of average 160* 150 BIGHORN BASIN BALD MTN. 9380 2.8 2.4 117 3.3 2.1 157 BEAR TRAP MEADOW 8200 .6 .5 120* 2.2 1.5 147 BLACKWATER 9780 2.3 2.7 85* 2.6 2.3 113 BONE SPRINGS DIV 9350 3.3 2.3 143 3.5 2.2 159 EVENING STAR 9200 2.2 2.3 96* 3.1 2.4 129 GRAVE SPRINGS 8550 .5 .9 56* 1.6 1.8 89 KIRWIN 9550 1.2 1.6 75 1.5 1.6 94 MARQUETTE 8760 .3 1.7 18 .9 2.0 45 MIDDLE POWDER 7760 .4 1.1 36* 1.8 2.3 78 OWL CREEK 8975 .0 .7 0 .4 1.0 40 POWDER RIVER PASS 9480 2.6 1.1 236* 3.3 1.7 194 SHELL CREEK 9580 2.9 2.4 121 2.9 1.8 161 SYLVAN LAKE 8420 1.6 1.7 94* 2.5 2.3 109 SYLVAN ROAD 7120 .5 .4 125* 2.1 1.8 117 TIMBER CREEK 7950 .0 .8 0 .5 1.4 36 YOUNTS PEAK 8350 1.3 1.2 108* 2.3 1.6 144 ----- ----- Basin wide percent of average 95* 116 SHOSHONE RIVER BLACKWATER 9780 2.3 2.7 85* 2.6 2.3 113 EVENING STAR 9200 2.2 2.3 96* 3.1 2.4 129 KIRWIN 9550 1.2 1.6 75 1.5 1.6 94 MARQUETTE 8760 .3 1.7 18 .9 2.0 45 SYLVAN LAKE 8420 1.6 1.7 94* 2.5 2.3 109 SYLVAN ROAD 7120 .5 .4 125* 2.1 1.8 117 YOUNTS PEAK 8350 1.3 1.2 108* 2.3 1.6 144 ----- ----- Basin wide percent of average 81* 107 POWDER-TONGUE BEAR TRAP MEADOW 8200 .6 .5 120* 2.2 1.5 147 BIG GOOSE 7990 .4 .7 57* 1.8 1.8 100 BONE SPRINGS DIV 9350 3.3 2.3 143 3.5 2.2 159 BURGESS JUNCTION 7880 -M 1.3 * -M 1.9 * CLOUD PEAK RESERVOIR 9860 1.9 1.2 158* 2.4 2.3 104 DOME LAKE 8880 1.8 1.5 120 2.6 2.2 118 GRAVE SPRINGS 8550 .5 .9 56* 1.6 1.8 89 HANSEN SAWMILL 8360 .4 .7 57 1.5 1.6 94 MIDDLE POWDER 7760 .4 1.1 36* 1.8 2.3 78 POWDER RIVER PASS 9480 2.6 1.1 236* 3.3 1.7 194 SUCKER CREEK 8880 2.1 1.1 191* 2.9 2.1 138 TIE CREEK 6870 -M .6 * -M 2.2 * ----- ----- Basin wide percent of average 126* 121 BELLE FOURCHE BLIND PARK 6890 .0 .4 0* 1.5 2.3 65 COLE CANYON 5910 .0 .6 0 1.2 -M * NORTH RAPID CREEK 6130 .0 .4 0* 1.2 2.2 55 ----- ----- Basin wide percent of average 0* 60 UPPER N. PLATTE RIVER COLUMBINE 9160 .0 .6 0* 2.1 2.1 100 DIVIDE PEAK 8860 2.3 1.5 153* 4.6 2.3 200 ELK RIVER 8700 .6 .5 120* 2.8 1.9 147 JOE WRIGHT 10120 2.7 2.1 129* .9 2.9 31 NORTH FRENCH CREEK 10130 2.3 2.7 85* 2.7 2.9 93 OLD BATTLE 9920 5.5 2.6 212* 6.5 3.1 210 SAGE CREEK BASIN 7850 .9 .8 112* 3.9 1.3 300 SOUTH BRUSH CREEK 8440 .4 .6 67* 1.5 2.3 65 TOWER 10500 5.0 2.9 172* 3.9 3.4 115 WEBBER SPRINGS 9250 3.1 1.6 194* 4.5 2.7 167 WILLOW CREEK PASS 9540 1.2 .9 133* 1.5 1.8 83 ----- ----- Basin wide percent of average 143* 131 LOWER N. PLATTE - SWEETWATER - LARAMIE BROOKLYN LAKE 10220 .6 1.9 32* 1.5 2.2 68 CASPER MTN. 7850 .3 1.4 21* 1.7 2.2 77 DEADMAN HILL 10220 2.8 1.9 147* 1.8 2.2 82 DEER PARK 9700 4.5 2.1 214 5.4 2.2 245 LAPRELE CREEK 8375 .4 .9 44* 1.8 1.7 106 RENO HILL 8500 .5 1.5 33* 1.4 2.2 64 ROACH 9700 .7 1.0 70* 2.1 2.0 105 SAND LAKE 10050 3.5 2.8 125* 2.4 2.7 89 SOUTH PASS 9040 3.2 1.2 267* 4.0 1.8 222 WINDY PEAK 7900 .0 .5 0* 1.1 1.5 73 ----- ----- Basin wide percent of average 109* 112 LITTLE SNAKE RIVER BATTLE MOUNTAIN 7440 .1 .4 25* 2.2 1.7 129 DIVIDE PEAK 8860 2.3 1.5 153* 4.6 2.3 200 OLD BATTLE 9920 5.5 2.6 212* 6.5 3.1 210 SANDSTONE RS 8150 .4 .5 80* 2.5 2.0 125 WHISKEY PARK 8950 1.8 1.4 129* 3.0 2.5 120 ----- ----- Basin wide percent of average 158* 162 UPPER GREEN RIVER BIG SANDY OPENING 9080 -M 1.0 * 4.5 1.6 281 BLIND BULL SUM 8900 2.4 1.4 171* 2.6 1.9 137 EAST RIM DIVIDE 7930 .7 .5 140* 1.5 1.2 125 ELKHART PARK G.S. 9400 3.0 .7 429* 3.7 1.7 218 GROS VENTRE SUMMIT 8750 2.1 1.2 175* 2.2 1.6 138 KENDALL R.S. 7740 1.6 .5 320* 2.7 1.3 208 LOOMIS PARK 8240 2.0 .8 250* 2.7 1.6 169 NEW FORK LAKE 8340 1.3 .4 325* 1.8 1.3 138 SNIDER BASIN 8060 2.1 .6 350* 2.8 1.4 200 SPRING CREEK DIVIDE 9000 3.6 1.2 300* 4.0 2.3 174 TRIPLE PEAK 8500 1.6 1.0 160* 2.4 1.9 126 ----- ----- Basin wide percent of average 246* 174 LOWER GREEN RIVER HAMS FORK 7840 1.5 .4 375* 3.0 1.3 231 HEWINTA 9500 .4 .8 50* 2.4 2.1 114 HICKERSON PARK 9100 1.1 .4 275* 2.9 1.5 193 HOLE-IN-ROCK 9150 1.1 .4 275* 2.6 1.4 186 INDIAN CREEK 9425 4.3 1.2 358* 4.4 2.3 191 KELLEY R.S. 8180 3.3 .8 412* 4.0 1.8 222 STEEL CREEK PARK 10100 2.8 1.4 200* 3.0 2.0 150 ----- ----- Basin wide percent of average 269* 180 UPPER BEAR RIVER BUG LAKE 7950 2.2 1.1 200* 4.0 2.0 200 HAYDEN FORK 9100 2.8 .8 350* 5.4 2.1 257 KELLEY R.S. 8180 3.3 .8 412* 4.0 1.8 222 LILY LAKE 9050 1.8 .8 225* 4.0 2.1 190 MONTE CRISTO 8960 -M 1.4 * -M 2.4 * SALT RIVER SUMMIT 7600 1.3 .3 433* 3.0 1.7 176 TRIAL LAKE 9960 5.5 1.6 344* 7.0 2.4 292 ----- ----- Basin wide percent of average 313* 226 ----------------------------------------------------------------------------- -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.