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 SATURDAY: OCTOBER 28 , 2006 ----------------------------------------------------------------------------- BASIN ELEV. SNOW WATER EQUIVALENT TOTAL PRECIPITATION Data Site Name (Ft) % % Current Average Avg Current Average Avg ----------------------------------------------------------------------------- WYOMING SNAKE RIVER BASE CAMP 7030 .2 .6 33* 2.4 1.8 133 COTTONWOOD CREEK 7600 1.3 .8 162* 3.1 2.7 115 GRANITE CREEK 6770 .1 .5 20* 2.5 1.6 156 GRASSY LAKE 7265 1.7 1.2 142* 5.6 3.0 187 GROS VENTRE SUMMIT 8750 1.6 1.2 133* 2.8 1.7 165 LEWIS LAKE DIVIDE 7850 1.5 1.0 150* 4.2 2.9 145 PHILLIPS BENCH 8200 1.1 1.2 92* 3.6 2.2 164 SALT RIVER SUMMIT 7600 .3 .3 100* 2.0 1.7 118 SNAKE RIVER STATION 6920 .2 .5 40* 4.4 2.0 220 SPRING CREEK DIVIDE 9000 1.2 1.3 92* 2.3 2.4 96 THUMB DIVIDE 7980 .3 .7 43* 2.3 1.8 128 TOGWOTEE PASS 9580 2.6 2.3 113* 3.2 2.5 128 TWO OCEAN PLATEAU 9240 1.8 2.7 67* 3.1 2.8 111 WILLOW CREEK 8450 1.1 1.5 73* 3.6 3.3 109 ----- ----- Basin wide percent of average 95* 139 UPPER YELLOWSTONE-MADISON BEARTOOTH LAKE 9275 2.1 2.4 88* 2.5 1.9 132 BLACK BEAR 8170 2.4 2.4 100* 5.2 3.1 168 CANYON 8090 .9 .6 150* 2.9 1.7 171 FISHER CREEK 9100 -M 2.4 * -M 3.0 * MADISON PLATEAU 7750 .9 1.4 64* 3.0 2.3 130 NORTHEAST ENTRANCE 7350 .0 .3 0* 3.4 1.4 243 PARKER PEAK 9400 1.7 2.3 74* 3.1 2.1 148 SYLVAN LAKE 8420 1.2 1.7 71* 4.3 2.4 179 THUMB DIVIDE 7980 .3 .7 43* 2.3 1.8 128 TWO OCEAN PLATEAU 9240 1.8 2.7 67* 3.1 2.8 111 WHISKEY CREEK 6800 .2 .6 33* -M 2.0 * WHITE MILL 8700 2.3 1.8 128* 3.8 2.4 158 WOLVERINE 7650 .2 .4 50* 1.9 1.7 112 ----- ----- Basin wide percent of average 81* 150 WIND RIVER BURROUGHS CREEK 8750 1.9 .8 237* 2.7 1.5 180 COLD SPRINGS 9630 .8 .9 89* 1.6 1.7 94 DEER PARK 9700 1.7 2.3 74 2.9 2.3 126 HOBBS PARK 10100 1.9 1.9 100 2.2 1.9 116 LITTLE WARM 9370 1.6 .9 178* 1.7 1.6 106 SOUTH PASS 9040 1.4 1.3 108* 2.9 1.9 153 ST. LAWRENCE ALT 8620 1.3 .7 186* 1.8 1.6 112 TOGWOTEE PASS 9580 2.6 2.3 113* 3.2 2.5 128 TOWNSEND CREEK 8700 1.8 .9 200* 3.0 1.9 158 ----- ----- Basin wide percent of average 125* 130 BIGHORN BASIN BALD MTN. 9380 5.0 2.5 200 3.8 2.2 173 BEAR TRAP MEADOW 8200 .9 .5 180* 1.5 1.6 94 BLACKWATER 9780 2.1 2.8 75* 2.6 2.4 108 BONE SPRINGS DIV 9350 4.2 2.4 175 3.2 2.3 139 EVENING STAR 9200 2.4 2.4 100* 3.9 2.5 156 GRAVE SPRINGS 8550 1.0 1.0 100* 1.4 1.9 74 KIRWIN 9550 1.7 1.6 106 2.4 1.7 141 MARQUETTE 8760 1.3 1.7 76 2.0 2.1 95 MIDDLE POWDER 7760 1.3 1.1 118* 1.6 2.4 67 OWL CREEK 8975 1.7 .8 212 2.0 1.0 200 POWDER RIVER PASS 9480 1.4 1.1 127* 2.1 1.7 124 SHELL CREEK 9580 4.2 2.4 175 2.5 1.8 139 SYLVAN LAKE 8420 1.2 1.7 71* 4.3 2.4 179 SYLVAN ROAD 7120 .6 .4 150* 3.0 1.9 158 TIMBER CREEK 7950 1.1 .9 122 2.1 1.5 140 YOUNTS PEAK 8350 1.0 1.2 83* 2.3 1.7 135 ----- ----- Basin wide percent of average 127* 131 SHOSHONE RIVER BLACKWATER 9780 2.1 2.8 75* 2.6 2.4 108 EVENING STAR 9200 2.4 2.4 100* 3.9 2.5 156 KIRWIN 9550 1.7 1.6 106 2.4 1.7 141 MARQUETTE 8760 1.3 1.7 76 2.0 2.1 95 SYLVAN LAKE 8420 1.2 1.7 71* 4.3 2.4 179 SYLVAN ROAD 7120 .6 .4 150* 3.0 1.9 158 YOUNTS PEAK 8350 1.0 1.2 83* 2.3 1.7 135 ----- ----- Basin wide percent of average 87* 139 POWDER-TONGUE BEAR TRAP MEADOW 8200 .9 .5 180* 1.5 1.6 94 BIG GOOSE 7990 1.1 .8 138* 1.5 1.9 79 BONE SPRINGS DIV 9350 4.2 2.4 175 3.2 2.3 139 BURGESS JUNCTION 7880 1.4 1.4 100 2.8 2.0 140 CLOUD PEAK RESERVOIR 9860 1.5 1.3 115* 2.0 2.4 83 DOME LAKE 8880 1.3 1.6 81 2.1 2.3 91 GRAVE SPRINGS 8550 1.0 1.0 100* 1.4 1.9 74 HANSEN SAWMILL 8360 .8 .7 114 .8 1.7 47 MIDDLE POWDER 7760 1.3 1.1 118* 1.6 2.4 67 POWDER RIVER PASS 9480 1.4 1.1 127* 2.1 1.7 124 SUCKER CREEK 8880 2.2 1.2 183* 2.8 2.2 127 TIE CREEK 6870 .6 .7 86 2.8 2.3 122 ----- ----- Basin wide percent of average 128* 100 BELLE FOURCHE BLIND PARK 6890 .8 .5 160* 1.6 2.4 67 COLE CANYON 5910 .1 .7 14 1.6 -M * NORTH RAPID CREEK 6130 .0 .4 0* 1.2 2.3 52 ----- ----- Basin wide percent of average 56* 60 UPPER N. PLATTE RIVER COLUMBINE 9160 2.0 .7 286* 4.4 2.2 200 DIVIDE PEAK 8860 3.7 1.5 247* 5.6 2.4 233 ELK RIVER 8700 2.1 .6 350* 3.8 2.0 190 JOE WRIGHT 10120 3.4 2.3 148* 4.7 3.0 157 NORTH FRENCH CREEK 10130 3.7 2.9 128* 4.8 3.0 160 OLD BATTLE 9920 4.6 2.7 170* 6.3 3.2 197 SAGE CREEK BASIN 7850 2.9 .8 362* 3.9 1.4 279 SOUTH BRUSH CREEK 8440 1.6 .7 229* 2.9 2.4 121 TOWER 10500 5.4 3.1 174* 6.9 3.6 192 WEBBER SPRINGS 9250 3.1 1.6 194* 5.8 2.8 207 WILLOW CREEK PASS 9540 2.5 1.0 250* 2.4 1.8 133 ----- ----- Basin wide percent of average 196* 185 LOWER N. PLATTE - SWEETWATER - LARAMIE BROOKLYN LAKE 10220 3.0 2.0 150* 3.8 2.3 165 CASPER MTN. 7850 1.3 1.5 87* 1.8 2.3 78 DEADMAN HILL 10220 1.8 2.0 90 3.3 2.3 143 DEER PARK 9700 1.7 2.3 74 2.9 2.3 126 LAPRELE CREEK 8375 1.2 .9 133* 1.6 1.7 94 RENO HILL 8500 2.0 1.5 133* 2.8 2.3 122 ROACH 9700 3.9 1.1 355* 4.8 2.1 229 SAND LAKE 10050 3.9 2.9 134* 4.5 2.8 161 SOUTH PASS 9040 1.4 1.3 108* 2.9 1.9 153 WINDY PEAK 7900 1.0 .5 200* 1.5 1.6 94 ----- ----- Basin wide percent of average 132* 138 LITTLE SNAKE RIVER BATTLE MOUNTAIN 7440 .6 .5 120* 3.2 1.7 188 DIVIDE PEAK 8860 3.7 1.5 247* 5.6 2.4 233 OLD BATTLE 9920 4.6 2.7 170* 6.3 3.2 197 SANDSTONE RS 8150 .8 .5 160* 3.3 2.1 157 WHISKEY PARK 8950 2.5 1.5 167* 4.8 2.6 185 ----- ----- Basin wide percent of average 182* 193 UPPER GREEN RIVER BIG SANDY OPENING 9080 1.5 1.1 136* 2.2 1.7 129 BLIND BULL SUM 8900 1.2 1.5 80* 2.1 2.0 105 EAST RIM DIVIDE 7930 .1 .5 20* 1.9 1.2 158 ELKHART PARK G.S. 9400 .6 .7 86* 2.3 1.7 135 GROS VENTRE SUMMIT 8750 1.6 1.2 133* 2.8 1.7 165 KENDALL R.S. 7740 .2 .5 40* 2.1 1.4 150 LOOMIS PARK 8240 .5 .8 62* 2.3 1.7 135 NEW FORK LAKE 8340 .6 .5 120* 2.4 1.4 171 SNIDER BASIN 8060 .9 .6 150* 1.7 1.5 113 SPRING CREEK DIVIDE 9000 1.2 1.3 92* 2.3 2.4 96 TRIPLE PEAK 8500 1.1 1.0 110* 2.4 2.0 120 ----- ----- Basin wide percent of average 98* 131 LOWER GREEN RIVER HAMS FORK 7840 .6 .4 150* 2.0 1.3 154 HEWINTA 9500 .0 .8 0* 3.2 2.2 145 HICKERSON PARK 9100 1.1 .4 275* 2.8 1.6 175 HOLE-IN-ROCK 9150 1.0 .4 250* 2.6 1.5 173 INDIAN CREEK 9425 1.5 1.3 115* 2.5 2.4 104 KELLEY R.S. 8180 .9 .8 112* 2.2 1.9 116 STEEL CREEK PARK 10100 1.7 1.5 113* 3.2 2.1 152 ----- ----- Basin wide percent of average 121* 142 UPPER BEAR RIVER BUG LAKE 7950 1.2 1.1 109* 2.3 2.1 110 HAYDEN FORK 9100 -M .8 * -M 2.2 * KELLEY R.S. 8180 .9 .8 112* 2.2 1.9 116 LILY LAKE 9050 1.0 .9 111* 3.4 2.2 155 MONTE CRISTO 8960 1.5 1.5 100* 3.9 2.5 156 SALT RIVER SUMMIT 7600 .3 .3 100* 2.0 1.7 118 TRIAL LAKE 9960 1.0 1.7 59* 4.1 2.5 164 ----- ----- Basin wide percent of average 94* 139 ----------------------------------------------------------------------------- -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.