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 FRIDAY: NOVEMBER 2 , 2007 ----------------------------------------------------------------------------- BASIN ELEV. SNOW WATER EQUIVALENT TOTAL PRECIPITATION Data Site Name (Ft) % % Current Average Avg Current Average Avg ----------------------------------------------------------------------------- WYOMING SNAKE RIVER BASE CAMP 7030 .8 .8 100* 5.3 2.2 241 COTTONWOOD CREEK 7600 1.7 1.1 155* 5.1 3.3 155 GRANITE CREEK 6770 .9 .7 129* 4.2 1.9 221 GRASSY LAKE 7265 1.3 1.7 76* 6.8 3.7 184 GROS VENTRE SUMMIT 8750 2.5 1.5 167 4.0 2.0 200 LEWIS LAKE DIVIDE 7850 1.4 1.5 93* 6.3 3.5 180 PHILLIPS BENCH 8200 1.6 1.6 100* 5.4 2.7 200 SALT RIVER SUMMIT 7600 .1 .5 20* 2.5 2.1 119 SNAKE RIVER STATION 6920 .1 .7 14* 5.2 2.4 217 SPRING CREEK DIVIDE 9000 1.8 1.7 106* 3.4 2.9 117 THUMB DIVIDE 7980 .7 1.0 70* 4.6 2.2 209 TOGWOTEE PASS 9580 4.7 2.8 168 5.8 3.0 193 TWO OCEAN PLATEAU 9240 6.2 3.4 182 6.5 3.4 191 WILLOW CREEK 8450 1.9 2.1 90* 6.9 4.0 172 ----- ----- Basin wide percent of average 122* 183 UPPER YELLOWSTONE-MADISON BEARTOOTH LAKE 9275 5.0 2.8 179 4.9 2.3 213 BLACK BEAR 8170 4.4 3.1 142* 6.9 3.8 182 CANYON 8090 1.4 .8 175* 4.2 2.0 210 FISHER CREEK 9100 5.8 3.0 193* 7.0 3.6 194 MADISON PLATEAU 7750 1.8 1.8 100* 5.2 2.8 186 NORTHEAST ENTRANCE 7350 .0 .4 0* 3.3 1.7 194 PARKER PEAK 9400 4.7 2.7 174 5.8 2.5 232 SYLVAN LAKE 8420 2.1 2.1 100* 6.1 2.8 218 THUMB DIVIDE 7980 .7 1.0 70* 4.6 2.2 209 TWO OCEAN PLATEAU 9240 6.2 3.4 182 6.5 3.4 191 WHISKEY CREEK 6800 .8 .9 89* 4.7 2.4 196 WHITE MILL 8700 4.3 2.2 195* 5.4 3.0 180 WOLVERINE 7650 .0 .6 0* 3.7 2.0 185 ----- ----- Basin wide percent of average 150* 198 WIND RIVER BURROUGHS CREEK 8750 2.0 1.1 182* 4.2 1.8 233 COLD SPRINGS 9630 .0 1.2 0 2.4 2.1 114 DEER PARK 9700 1.4 2.8 50 3.2 2.8 114 HOBBS PARK 10100 1.6 2.4 67 3.2 2.3 139 LITTLE WARM 9370 1.1 1.2 92* 3.2 1.9 168 SOUTH PASS 9040 .2 1.7 12* 2.5 2.3 109 ST. LAWRENCE ALT 8620 .2 1.0 20 1.5 1.9 79 TOGWOTEE PASS 9580 4.7 2.8 168 5.8 3.0 193 TOWNSEND CREEK 8700 .1 1.2 8 2.7 2.3 117 ----- ----- Basin wide percent of average 73 141 BIGHORN BASIN BALD MTN. 9380 3.2 2.9 110 3.7 2.6 142 BEAR TRAP MEADOW 8200 .8 .6 133 2.2 1.9 116 BLACKWATER 9780 5.2 3.3 158 5.1 2.9 176 BONE SPRINGS DIV 9350 2.6 2.8 93 4.1 2.7 152 EVENING STAR 9200 4.3 3.0 143* 6.6 3.1 213 GRAVE SPRINGS 8550 1.3 1.3 100 2.8 2.2 127 KIRWIN 9550 3.7 2.0 185 5.1 2.0 255 MARQUETTE 8760 .2 2.1 10 3.3 2.5 132 MIDDLE POWDER 7760 1.8 1.4 129* 2.8 2.8 100 OWL CREEK 8975 .9 .9 100 2.6 1.2 217 POWDER RIVER PASS 9480 1.7 1.4 121 3.5 2.1 167 SHELL CREEK 9580 4.4 2.8 157 5.1 2.2 232 SYLVAN LAKE 8420 2.1 2.1 100* 6.1 2.8 218 SYLVAN ROAD 7120 .0 .6 0* 5.3 2.3 230 TIMBER CREEK 7950 .3 1.2 25 3.5 1.7 206 YOUNTS PEAK 8350 2.3 1.5 153* 5.6 2.0 280 ----- ----- Basin wide percent of average 116 182 SHOSHONE RIVER BLACKWATER 9780 5.2 3.3 158 5.1 2.9 176 EVENING STAR 9200 4.3 3.0 143* 6.6 3.1 213 KIRWIN 9550 3.7 2.0 185 5.1 2.0 255 MARQUETTE 8760 .2 2.1 10 3.3 2.5 132 SYLVAN LAKE 8420 2.1 2.1 100* 6.1 2.8 218 SYLVAN ROAD 7120 .0 .6 0* 5.3 2.3 230 YOUNTS PEAK 8350 2.3 1.5 153* 5.6 2.0 280 ----- ----- Basin wide percent of average 122* 211 POWDER-TONGUE BEAR TRAP MEADOW 8200 .8 .6 133 2.2 1.9 116 BIG GOOSE 7990 1.6 .9 178* 4.4 2.2 200 BONE SPRINGS DIV 9350 2.6 2.8 93 4.1 2.7 152 BURGESS JUNCTION 7880 1.5 1.7 88 3.6 2.4 150 CLOUD PEAK RESERVOIR 9860 3.1 1.7 182 5.4 2.8 193 DOME LAKE 8880 2.0 2.0 100 4.7 2.7 174 GRAVE SPRINGS 8550 1.3 1.3 100 2.8 2.2 127 HANSEN SAWMILL 8360 .5 .9 56 3.4 1.9 179 MIDDLE POWDER 7760 1.8 1.4 129* 2.8 2.8 100 POWDER RIVER PASS 9480 1.7 1.4 121 3.5 2.1 167 SUCKER CREEK 8880 2.1 1.5 140 3.9 2.6 150 TIE CREEK 6870 .0 .9 0 3.1 2.6 119 ----- ----- Basin wide percent of average 111 152 BELLE FOURCHE BLIND PARK 6890 .0 .7 0* 1.5 2.8 54 COLE CANYON 5910 .0 .9 0 1.1 -M * NORTH RAPID CREEK 6130 .0 .5 0* 1.1 2.6 42 ----- ----- Basin wide percent of average 0* 48 UPPER N. PLATTE RIVER COLUMBINE 9160 .0 1.0 0* 3.9 2.6 150 DIVIDE PEAK 8860 1.5 1.9 79* 3.3 2.9 114 ELK RIVER 8700 .5 .8 62* 3.2 2.4 133 JOE WRIGHT 10120 2.2 2.8 79 5.4 3.6 150 NORTH FRENCH CREEK 10130 3.1 3.4 91* 4.6 3.6 128 OLD BATTLE 9920 2.9 3.4 85* 4.6 3.9 118 SAGE CREEK BASIN 7850 .0 1.1 0* 2.8 1.7 165 SOUTH BRUSH CREEK 8440 1.1 .9 122* 3.8 2.8 136 TOWER 10500 3.2 4.0 80* 5.2 4.3 121 WEBBER SPRINGS 9250 1.4 2.1 67* 3.9 3.4 115 WILLOW CREEK PASS 9540 2.2 1.3 169* 3.2 2.2 145 ----- ----- Basin wide percent of average 80* 131 LOWER N. PLATTE - SWEETWATER - LARAMIE BROOKLYN LAKE 10220 1.6 2.4 67* 3.1 2.7 115 CASPER MTN. 7850 1.1 1.9 58 3.7 2.7 137 DEADMAN HILL 10220 2.7 2.4 113 3.6 2.7 133 DEER PARK 9700 1.4 2.8 50 3.2 2.8 114 LAPRELE CREEK 8375 .3 1.2 25 2.2 2.1 105 RENO HILL 8500 2.1 1.9 111 4.0 2.7 148 ROACH 9700 1.9 1.4 136* 3.4 2.5 136 SAND LAKE 10050 4.3 3.6 119* 5.0 3.3 152 SOUTH PASS 9040 .2 1.7 12* 2.5 2.3 109 WINDY PEAK 7900 .5 .7 71* 1.7 1.9 89 ----- ----- Basin wide percent of average 80 126 LITTLE SNAKE RIVER BATTLE MOUNTAIN 7440 -M .6 * 2.3 2.1 110 DIVIDE PEAK 8860 1.5 1.9 79* 3.3 2.9 114 OLD BATTLE 9920 2.9 3.4 85* 4.6 3.9 118 SANDSTONE RS 8150 .0 .6 0* 2.4 2.5 96 WHISKEY PARK 8950 1.2 1.9 63* 4.3 3.2 134 ----- ----- Basin wide percent of average 72* 116 UPPER GREEN RIVER BIG SANDY OPENING 9080 1.3 1.4 93* 2.0 2.0 100 BLIND BULL SUM 8900 1.8 2.0 90* 3.2 2.4 133 EAST RIM DIVIDE 7930 .0 .8 0* 2.0 1.5 133 ELKHART PARK G.S. 9400 .9 1.0 90* 2.3 2.1 110 GROS VENTRE SUMMIT 8750 2.5 1.5 167 4.0 2.0 200 KENDALL R.S. 7740 .2 .8 25* 2.3 1.7 135 LOOMIS PARK 8240 .6 1.1 55* 2.4 2.0 120 NEW FORK LAKE 8340 .5 .7 71* 2.0 1.7 118 SNIDER BASIN 8060 .2 .9 22* 1.8 1.8 100 SPRING CREEK DIVIDE 9000 1.8 1.7 106* 3.4 2.9 117 TRIPLE PEAK 8500 2.2 1.4 157* 4.6 2.4 192 ----- ----- Basin wide percent of average 90* 133 LOWER GREEN RIVER HAMS FORK 7840 .0 .6 0* 1.6 1.6 100 HEWINTA 9500 -M .9 * 4.4 2.6 169 HICKERSON PARK 9100 .0 .5 0* 2.8 1.8 156 HOLE-IN-ROCK 9150 .0 .5 0* 3.4 1.7 200 INDIAN CREEK 9425 1.1 1.8 61* 2.7 2.8 96 KELLEY R.S. 8180 .2 1.1 18* 2.8 2.3 122 STEEL CREEK PARK 10100 2.4 1.8 133* 4.8 2.5 192 ----- ----- Basin wide percent of average 59* 147 UPPER BEAR RIVER BUG LAKE 7950 -M 1.4 * 1.2 2.5 48 HAYDEN FORK 9100 .2 1.0 20* 3.6 2.6 138 KELLEY R.S. 8180 .2 1.1 18* 2.8 2.3 122 LILY LAKE 9050 .1 1.1 9* 3.7 2.6 142 MONTE CRISTO 8960 .1 1.8 6* 3.0 3.0 100 SALT RIVER SUMMIT 7600 .1 .5 20* 2.5 2.1 119 TRIAL LAKE 9960 1.1 2.1 52* 3.0 3.0 100 ----- ----- Basin wide percent of average 24* 109 ----------------------------------------------------------------------------- -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.