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 30 , 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 2.0 120 COTTONWOOD CREEK 7600 1.5 .9 167* 3.1 2.9 107 GRANITE CREEK 6770 .2 .5 40* 2.6 1.7 153 GRASSY LAKE 7265 1.8 1.4 129* 5.9 3.3 179 GROS VENTRE SUMMIT 8750 1.9 1.3 146* 2.8 1.8 156 LEWIS LAKE DIVIDE 7850 1.5 1.2 125* 4.2 3.1 135 PHILLIPS BENCH 8200 1.2 1.3 92* 3.6 2.3 157 SALT RIVER SUMMIT 7600 .4 .4 100* 2.1 1.9 111 SNAKE RIVER STATION 6920 .2 .5 40* 4.4 2.2 200 SPRING CREEK DIVIDE 9000 1.3 1.4 93* 2.4 2.5 96 THUMB DIVIDE 7980 .2 .8 25* 2.4 2.0 120 TOGWOTEE PASS 9580 2.7 2.5 108* 3.4 2.7 126 TWO OCEAN PLATEAU 9240 2.1 3.0 70* 3.1 3.0 103 WILLOW CREEK 8450 1.2 1.7 71* 3.6 3.6 100 ----- ----- Basin wide percent of average 94* 131 UPPER YELLOWSTONE-MADISON BEARTOOTH LAKE 9275 2.2 2.5 88* 2.6 2.1 124 BLACK BEAR 8170 2.4 2.7 89* 5.2 3.4 153 CANYON 8090 .9 .6 150* 2.9 1.8 161 FISHER CREEK 9100 -M 2.6 * -M 3.2 * MADISON PLATEAU 7750 .9 1.5 60* 3.0 2.4 125 NORTHEAST ENTRANCE 7350 .0 .3 0* 3.4 1.5 227 PARKER PEAK 9400 1.8 2.4 75* 3.1 2.2 141 SYLVAN LAKE 8420 1.3 1.9 68* 4.3 2.5 172 THUMB DIVIDE 7980 .2 .8 25* 2.4 2.0 120 TWO OCEAN PLATEAU 9240 2.1 3.0 70* 3.1 3.0 103 WHISKEY CREEK 6800 .2 .7 29* -M 2.2 * WHITE MILL 8700 2.4 1.9 126* 3.9 2.6 150 WOLVERINE 7650 .1 .5 20* 1.9 1.8 106 ----- ----- Basin wide percent of average 77* 142 WIND RIVER BURROUGHS CREEK 8750 2.0 .9 222* 2.7 1.6 169 COLD SPRINGS 9630 .8 1.0 80 1.6 1.9 84 DEER PARK 9700 1.7 2.5 68 2.8 2.4 117 HOBBS PARK 10100 1.8 2.1 86 2.1 2.1 100 LITTLE WARM 9370 1.5 1.0 150* 1.8 1.7 106 SOUTH PASS 9040 1.5 1.5 100* 2.9 2.1 138 ST. LAWRENCE ALT 8620 1.4 .8 175 1.8 1.7 106 TOGWOTEE PASS 9580 2.7 2.5 108* 3.4 2.7 126 TOWNSEND CREEK 8700 1.9 1.0 190 3.3 2.1 157 ----- ----- Basin wide percent of average 115 122 BIGHORN BASIN BALD MTN. 9380 5.0 2.6 192 3.9 2.3 170 BEAR TRAP MEADOW 8200 .9 .6 150 1.5 1.7 88 BLACKWATER 9780 2.1 3.0 70 2.6 2.6 100 BONE SPRINGS DIV 9350 4.1 2.5 164 3.3 2.4 138 EVENING STAR 9200 2.4 2.6 92* 4.0 2.7 148 GRAVE SPRINGS 8550 1.0 1.1 91* 1.4 2.1 67 KIRWIN 9550 1.8 1.8 100 2.5 1.8 139 MARQUETTE 8760 1.1 1.9 58 2.1 2.2 95 MIDDLE POWDER 7760 1.3 1.2 108* 1.6 2.5 64 OWL CREEK 8975 1.7 .8 212 2.0 1.1 182 POWDER RIVER PASS 9480 1.4 1.2 117 2.1 1.9 111 SHELL CREEK 9580 4.3 2.6 165 2.4 2.0 120 SYLVAN LAKE 8420 1.3 1.9 68* 4.3 2.5 172 SYLVAN ROAD 7120 .7 .5 140* 2.9 2.1 138 TIMBER CREEK 7950 1.1 1.0 110 2.1 1.6 131 YOUNTS PEAK 8350 1.1 1.3 85* 3.2 1.8 178 ----- ----- Basin wide percent of average 118 126 SHOSHONE RIVER BLACKWATER 9780 2.1 3.0 70 2.6 2.6 100 EVENING STAR 9200 2.4 2.6 92* 4.0 2.7 148 KIRWIN 9550 1.8 1.8 100 2.5 1.8 139 MARQUETTE 8760 1.1 1.9 58 2.1 2.2 95 SYLVAN LAKE 8420 1.3 1.9 68* 4.3 2.5 172 SYLVAN ROAD 7120 .7 .5 140* 2.9 2.1 138 YOUNTS PEAK 8350 1.1 1.3 85* 3.2 1.8 178 ----- ----- Basin wide percent of average 81* 138 POWDER-TONGUE BEAR TRAP MEADOW 8200 .9 .6 150 1.5 1.7 88 BIG GOOSE 7990 1.0 .8 125* 1.5 2.1 71 BONE SPRINGS DIV 9350 4.1 2.5 164 3.3 2.4 138 BURGESS JUNCTION 7880 1.4 1.5 93 2.7 2.2 123 CLOUD PEAK RESERVOIR 9860 1.5 1.5 100* 1.9 2.5 76 DOME LAKE 8880 1.3 1.8 72 2.1 2.4 88 GRAVE SPRINGS 8550 1.0 1.1 91* 1.4 2.1 67 HANSEN SAWMILL 8360 .7 .8 87 .8 1.8 44 MIDDLE POWDER 7760 1.3 1.2 108* 1.6 2.5 64 POWDER RIVER PASS 9480 1.4 1.2 117 2.1 1.9 111 SUCKER CREEK 8880 2.2 1.3 169* 2.8 2.3 122 TIE CREEK 6870 .2 .8 25 2.7 2.4 113 ----- ----- Basin wide percent of average 113 93 BELLE FOURCHE BLIND PARK 6890 .8 .5 160* 1.6 2.5 64 COLE CANYON 5910 .0 .8 0 1.7 -M * NORTH RAPID CREEK 6130 .0 .5 0* 1.3 2.4 54 ----- ----- Basin wide percent of average 44* 59 UPPER N. PLATTE RIVER COLUMBINE 9160 2.0 .8 250* 4.4 2.3 191 DIVIDE PEAK 8860 3.7 1.7 218* 5.6 2.6 215 ELK RIVER 8700 2.0 .6 333* 4.0 2.2 182 JOE WRIGHT 10120 3.5 2.5 140* 4.7 3.3 142 NORTH FRENCH CREEK 10130 3.7 3.1 119* 4.8 3.3 145 OLD BATTLE 9920 4.6 3.0 153* 6.5 3.5 186 SAGE CREEK BASIN 7850 2.8 .9 311* 3.9 1.5 260 SOUTH BRUSH CREEK 8440 1.7 .7 243* 3.1 2.5 124 TOWER 10500 5.4 3.4 159* 7.0 3.8 184 WEBBER SPRINGS 9250 3.0 1.8 167* 5.8 3.0 193 WILLOW CREEK PASS 9540 2.6 1.1 236* 2.4 2.0 120 ----- ----- Basin wide percent of average 179* 174 LOWER N. PLATTE - SWEETWATER - LARAMIE BROOKLYN LAKE 10220 3.0 2.1 143* 3.9 2.4 162 CASPER MTN. 7850 1.3 1.7 76* 1.8 2.4 75 DEADMAN HILL 10220 1.5 2.1 71 3.4 2.4 142 DEER PARK 9700 1.7 2.5 68 2.8 2.4 117 LAPRELE CREEK 8375 1.2 1.0 120* 1.7 1.9 89 RENO HILL 8500 2.0 1.7 118 2.8 2.4 117 ROACH 9700 3.8 1.2 317* 4.8 2.2 218 SAND LAKE 10050 3.9 3.2 122* 4.6 3.0 153 SOUTH PASS 9040 1.5 1.5 100* 2.9 2.1 138 WINDY PEAK 7900 1.0 .5 200* 1.6 1.7 94 ----- ----- Basin wide percent of average 119* 132 LITTLE SNAKE RIVER BATTLE MOUNTAIN 7440 .3 .5 60* 3.4 1.9 179 DIVIDE PEAK 8860 3.7 1.7 218* 5.6 2.6 215 OLD BATTLE 9920 4.6 3.0 153* 6.5 3.5 186 SANDSTONE RS 8150 .9 .5 180* 3.4 2.2 155 WHISKEY PARK 8950 2.5 1.6 156* 4.9 2.8 175 ----- ----- Basin wide percent of average 164* 183 UPPER GREEN RIVER BIG SANDY OPENING 9080 1.5 1.2 125* 2.2 1.8 122 BLIND BULL SUM 8900 1.3 1.6 81* 2.1 2.2 95 EAST RIM DIVIDE 7930 .1 .6 17* 1.9 1.3 146 ELKHART PARK G.S. 9400 .6 .8 75* 2.3 1.9 121 GROS VENTRE SUMMIT 8750 1.9 1.3 146* 2.8 1.8 156 KENDALL R.S. 7740 .3 .6 50* 2.3 1.5 153 LOOMIS PARK 8240 .5 .9 56* 2.3 1.8 128 NEW FORK LAKE 8340 .7 .5 140* 2.5 1.5 167 SNIDER BASIN 8060 .9 .7 129* 1.7 1.6 106 SPRING CREEK DIVIDE 9000 1.3 1.4 93* 2.4 2.5 96 TRIPLE PEAK 8500 1.2 1.2 100* 2.4 2.2 109 ----- ----- Basin wide percent of average 95* 124 LOWER GREEN RIVER HAMS FORK 7840 .5 .4 125* 2.0 1.4 143 HEWINTA 9500 -M .8 * 3.4 2.3 148 HICKERSON PARK 9100 .0 .4 0* 2.9 1.7 171 HOLE-IN-ROCK 9150 1.1 .4 275* 2.6 1.6 162 INDIAN CREEK 9425 1.4 1.5 93* 2.5 2.5 100 KELLEY R.S. 8180 1.0 .9 111* 2.3 2.1 110 STEEL CREEK PARK 10100 1.9 1.6 119* 3.3 2.2 150 ----- ----- Basin wide percent of average 113* 138 UPPER BEAR RIVER BUG LAKE 7950 1.2 1.2 100* 2.3 2.2 105 HAYDEN FORK 9100 -M .8 * -M 2.3 * KELLEY R.S. 8180 1.0 .9 111* 2.3 2.1 110 LILY LAKE 9050 .6 .9 67* 3.4 2.3 148 MONTE CRISTO 8960 1.7 1.6 106* 3.9 2.7 144 SALT RIVER SUMMIT 7600 .4 .4 100* 2.1 1.9 111 TRIAL LAKE 9960 1.0 1.9 53* 4.1 2.7 152 ----- ----- Basin wide percent of average 86* 130 ----------------------------------------------------------------------------- -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.