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 29 , 2011 ----------------------------------------------------------------------------- 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* 3.4 1.9 179 COTTONWOOD CREEK 7670 .3 .8 38* 4.6 2.8 164 GRAND TARGHEE 9260 2.7 -M * 5.3 -M * GRANITE CREEK 6770 .1 .4 25* 2.5 1.6 156 GRASSY LAKE 7265 .4 1.2 33* 5.2 3.0 173 GROS VENTRE SUMMIT 8750 .4 1.3 31* 2.3 1.7 135 GUNSIGHT PASS 9820 .7 -M * 2.5 -M * LEWIS LAKE DIVIDE 7850 .2 1.0 20* 4.4 2.8 157 PHILLIPS BENCH 8200 .0 1.2 0* 2.6 2.1 124 SALT RIVER SUMMIT 7760 .2 .3 67* 2.2 1.8 122 SNAKE RIVER STATION 6920 .1 .5 20* 3.8 2.1 181 SPRING CREEK DIVIDE 9000 1.2 1.3 92* 3.3 2.3 143 THUMB DIVIDE 7980 .1 .7 14* 2.8 1.9 147 TOGWOTEE PASS 9580 1.4 2.3 61* 3.2 2.6 123 TWO OCEAN PLATEAU 9240 4.3 2.8 154* 3.8 2.8 136 WILLOW CREEK 8380 .1 1.6 6* 5.3 3.4 156 ----- ----- Basin wide percent of average 56* 151 UPPER YELLOWSTONE-MADISON BEARTOOTH LAKE 9360 2.3 2.5 92* 3.0 1.9 158 BLACK BEAR 8170 1.7 2.5 68* 5.4 3.1 174 CANYON 7870 .1 .6 17* 2.1 1.7 124 FISHER CREEK 9100 2.0 2.4 83* 4.4 3.0 147 MADISON PLATEAU 7750 .1 1.5 7* 3.9 2.3 170 NORTHEAST ENTRANCE 7350 .0 .2 0* 2.0 1.4 143 PARKER PEAK 9400 1.3 2.4 54* 3.4 2.2 155 SYLVAN LAKE 8420 .2 1.7 12* 3.9 2.4 163 THUMB DIVIDE 7980 .1 .7 14* 2.8 1.9 147 TWO OCEAN PLATEAU 9240 4.3 2.8 154* 3.8 2.8 136 WHISKEY CREEK 6800 .1 .7 14* 3.2 2.0 160 WHITE MILL 8700 1.0 1.7 59* 3.6 2.5 144 WOLVERINE 7650 .4 .4 100* 2.9 1.7 171 ----- ----- Basin wide percent of average 68* 154 WIND RIVER BURROUGHS CREEK 8750 .2 .8 25* 1.5 1.5 100 CASTLE CREEK 8400 .2 -M * 1.1 -M * COLD SPRINGS 9630 .5 1.0 50 1.9 1.8 106 DEER PARK 9700 1.0 1.9 53* 2.7 2.3 117 HOBBS PARK 10100 1.9 2.1 90 2.6 2.0 130 LITTLE WARM 9370 .0 .9 0* 1.6 1.6 100 SOUTH PASS 9040 .6 1.4 43* 2.3 1.9 121 ST. LAWRENCE ALT 8620 .2 .9 22 1.3 1.6 81 TOGWOTEE PASS 9580 1.4 2.3 61* 3.2 2.6 123 TOWNSEND CREEK 8700 .4 1.1 36 2.8 2.0 140 ----- ----- Basin wide percent of average 50* 115 BIGHORN BASIN BALD MTN. 9380 3.5 2.6 135 3.7 2.3 161 BEAR TRAP MEADOW 8200 .4 .5 80* 1.9 1.6 119 BLACKWATER 9780 3.3 2.9 114* 3.8 2.5 152 BONE SPRINGS DIV 9350 3.5 2.4 146 4.3 2.3 187 EVENING STAR 9200 1.5 2.4 63* 4.2 2.6 162 GRAVE SPRINGS 8550 .4 1.1 36* 2.1 2.0 105 KIRWIN 9550 1.8 1.8 100 3.1 1.7 182 MARQUETTE 8760 .3 -M * 3.5 2.2 159 MIDDLE POWDER 7760 .3 1.3 23* 4.1 2.4 171 OWL CREEK 8975 .7 .8 88 1.6 1.1 145 POWDER RIVER PASS 9480 2.0 1.1 182* 3.2 1.8 178 SHELL CREEK 9580 4.1 2.6 158 3.9 1.9 205 SYLVAN LAKE 8420 .2 1.7 12* 3.9 2.4 163 SYLVAN ROAD 7120 .0 .4 0* 2.2 1.9 116 TIMBER CREEK 7950 .3 1.1 27 3.7 1.5 247 YOUNTS PEAK 8350 .7 1.3 54* 3.0 1.7 176 ----- ----- Basin wide percent of average 95* 164 SHOSHONE RIVER BLACKWATER 9780 3.3 2.9 114* 3.8 2.5 152 EVENING STAR 9200 1.5 2.4 63* 4.2 2.6 162 KIRWIN 9550 1.8 1.8 100 3.1 1.7 182 MARQUETTE 8760 .3 -M * 3.5 2.2 159 SYLVAN LAKE 8420 .2 1.7 12* 3.9 2.4 163 SYLVAN ROAD 7120 .0 .4 0* 2.2 1.9 116 YOUNTS PEAK 8350 .7 1.3 54* 3.0 1.7 176 ----- ----- Basin wide percent of average 71* 158 POWDER-TONGUE BEAR TRAP MEADOW 8200 .4 .5 80* 1.9 1.6 119 BIG GOOSE 7990 1.3 .8 163* 4.5 2.0 225 BONE SPRINGS DIV 9350 3.5 2.4 146 4.3 2.3 187 BURGESS JUNCTION 7880 1.3 1.5 87 4.4 2.1 210 CLOUD PEAK RESERVOIR 9860 2.0 1.5 133* 3.9 2.5 156 DOME LAKE 8880 2.2 1.8 122 4.7 2.4 196 GRAVE SPRINGS 8550 .4 1.1 36* 2.1 2.0 105 HANSEN SAWMILL 8360 .3 .8 38 2.0 1.7 118 LITTLE GOOSE 8870 1.6 -M * 5.0 -M * MIDDLE POWDER 7760 .3 1.3 23* 4.1 2.4 171 POWDER RIVER PASS 9480 2.0 1.1 182* 3.2 1.8 178 SOLDIER PARK 8720 .2 -M * 2.8 -M * SUCKER CREEK 8880 2.8 1.4 200 4.4 2.3 191 TIE CREEK 6870 .1 .8 13 4.6 2.4 192 ----- ----- Basin wide percent of average 111* 173 BELLE FOURCHE BLIND PARK 6890 .0 .4 0* 1.1 2.4 46 COLE CANYON 5910 .0 .8 0 1.4 1.7 82 NORTH RAPID CREEK 6130 .3 .4 75* .6 2.4 25 ----- ----- Basin wide percent of average 19* 48 UPPER N. PLATTE RIVER BLACKHALL MTN 9820 2.3 -M * 3.7 -M * CINNABAR PARK 9574 1.1 1.4 79* 3.3 2.3 143 COLUMBINE 9160 .3 .6 50* 2.6 2.2 118 DIVIDE PEAK 8880 .3 1.6 19* 3.0 2.5 120 ELK RIVER 8700 .2 .5 40* 2.4 2.0 120 JOE WRIGHT 10120 .4 2.3 17* 3.7 3.2 116 NORTH FRENCH CREEK 10130 2.5 2.9 86* 3.9 3.1 126 OLD BATTLE 10000 2.2 2.7 81* 3.6 3.3 109 SAGE CREEK BASIN 7850 .0 .9 0* 2.0 1.5 133 SOUTH BRUSH CREEK 8440 .4 .6 67* 2.8 2.5 112 TOWER 10500 2.0 3.1 65* 3.6 3.6 100 WEBBER SPRINGS 9250 .4 1.6 25* 3.3 2.8 118 WILLOW CREEK PASS 9540 1.8 1.0 180* 2.2 1.9 116 ----- ----- Basin wide percent of average 60* 118 LOWER N. PLATTE - SWEETWATER - LARAMIE BROOKLYN LAKE 10240 .8 2.0 40* 3.2 2.2 145 CASPER MTN. 7900 1.2 1.6 75* 5.1 2.3 222 DEADMAN HILL 10220 2.5 2.0 125 3.2 2.3 139 DEER PARK 9700 1.0 1.9 53* 2.7 2.3 117 LAPRELE CREEK 8375 .0 .9 0* 2.2 1.7 129 RENO HILL 8400 1.2 1.6 75 3.3 2.3 143 ROACH 9700 1.4 1.0 140* 3.2 2.2 145 SAND LAKE 10050 3.0 3.0 100* 3.9 2.8 139 SOUTH PASS 9040 .6 1.4 43* 2.3 1.9 121 WINDY PEAK 7900 .1 .5 20* 1.5 1.6 94 ----- ----- Basin wide percent of average 74* 142 LITTLE SNAKE RIVER BATTLE MOUNTAIN 7440 .0 .5 0* 1.6 1.8 89 DIVIDE PEAK 8880 .3 1.6 19* 3.0 2.5 120 OLD BATTLE 10000 2.2 2.7 81* 3.6 3.3 109 SANDSTONE RS 8150 .0 .4 0* 1.6 2.2 73 WHISKEY PARK 8950 .3 1.5 20* 3.2 2.7 119 ----- ----- Basin wide percent of average 42* 104 UPPER GREEN RIVER BIG SANDY OPENING 9080 .9 1.1 82* 1.9 1.7 112 BLIND BULL SUM 8650 .6 1.4 43* 2.1 2.0 105 EAST RIM DIVIDE 7930 .3 .5 60* 2.1 1.3 162 ELKHART PARK G.S. 9400 .7 .8 88* 2.7 1.8 150 GROS VENTRE SUMMIT 8750 .4 1.3 31* 2.3 1.7 135 GUNSIGHT PASS 9820 .7 -M * 2.5 -M * KENDALL R.S. 7740 .2 .6 33* 2.2 1.4 157 LOOMIS PARK 8240 .1 .8 13* 2.5 1.7 147 NEW FORK LAKE 8340 .5 .5 100* 2.6 1.4 186 POCKET CREEK 9360 1.6 -M * 2.6 -M * SNIDER BASIN 8060 .2 .6 33* 1.6 1.4 114 SPRING CREEK DIVIDE 9000 1.2 1.3 92* 3.3 2.3 143 TRIPLE PEAK 8500 .9 1.0 90* 3.0 2.0 150 ----- ----- Basin wide percent of average 61* 141 LOWER GREEN RIVER HAMS FORK 7840 .1 .4 25* 2.6 1.3 200 HEWINTA 9519 -M .8 * 2.9 2.2 132 HICKERSON PARK 9145 .0 .4 0* 3.5 1.6 219 HOLE-IN-ROCK 9150 .2 .4 50* 3.1 1.6 194 INDIAN CREEK 9425 1.4 1.3 108* 3.1 2.3 135 KELLEY R.S. 8180 .3 .8 38* 2.8 2.0 140 STEEL CREEK PARK 10200 .0 1.5 0* 3.5 2.1 167 ----- ----- Basin wide percent of average 42* 164 UPPER BEAR RIVER BUG LAKE 7950 .3 1.1 27* 1.6 2.2 73 HAYDEN FORK 9212 .3 .8 38* 4.1 2.2 186 KELLEY R.S. 8180 .3 .8 38* 2.8 2.0 140 LILY LAKE 9156 .0 .9 0* 2.8 2.2 127 MONTE CRISTO 8960 .3 1.4 21* 2.5 2.6 96 SALT RIVER SUMMIT 7760 .2 .3 67* 2.2 1.8 122 TRIAL LAKE 9992 1.1 1.8 61* 2.5 2.5 100 ----- ----- Basin wide percent of average 35* 119 ----------------------------------------------------------------------------- -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.