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 SUNDAY: NOVEMBER 1 , 2009 ----------------------------------------------------------------------------- BASIN ELEV. SNOW WATER EQUIVALENT TOTAL PRECIPITATION Data Site Name (Ft) % % Current Average Avg Current Average Avg ----------------------------------------------------------------------------- WYOMING SNAKE RIVER BASE CAMP 7030 .5 .6 83 2.5 2.0 125 COTTONWOOD CREEK 7670 .6 .9 67 4.4 3.0 147 GRAND TARGHEE 9260 6.2 -M * 5.6 -M * GRANITE CREEK 6770 .1 .5 20 2.6 1.8 144 GRASSY LAKE 7265 1.2 1.4 86 3.9 3.3 118 GROS VENTRE SUMMIT 8750 2.2 1.4 157 2.4 1.8 133 GUNSIGHT PASS 9820 1.8 -M * 3.1 -M * LEWIS LAKE DIVIDE 7850 .9 1.2 75 3.9 3.1 126 PHILLIPS BENCH 8200 1.3 1.4 93 3.5 2.4 146 SALT RIVER SUMMIT 7760 .3 .4 75 2.6 1.9 137 SNAKE RIVER STATION 6920 .5 .6 83 3.1 2.3 135 SPRING CREEK DIVIDE 9000 3.5 1.5 233 4.2 2.5 168 THUMB DIVIDE 7980 1.0 .8 125 4.1 2.1 195 TOGWOTEE PASS 9580 4.3 2.6 165 4.3 2.8 154 TWO OCEAN PLATEAU 9240 4.8 3.0 160 3.8 3.1 123 WILLOW CREEK 8380 2.1 1.8 117 5.5 3.7 149 ----- ----- Basin wide percent of average 129 142 UPPER YELLOWSTONE-MADISON BEARTOOTH LAKE 9360 3.6 2.7 133 3.0 2.1 143 BLACK BEAR 8170 4.7 2.8 168 6.0 3.4 176 CANYON 7870 1.4 .6 233 3.0 1.8 167 FISHER CREEK 9100 5.0 2.7 185 5.5 3.3 167 MADISON PLATEAU 7750 2.3 1.6 144 5.2 2.5 208 NORTHEAST ENTRANCE 7350 .5 .3 167 2.7 1.5 180 PARKER PEAK 9400 4.7 2.6 181 3.8 2.3 165 SYLVAN LAKE 8420 1.6 1.9 84 3.1 2.6 119 THUMB DIVIDE 7980 1.0 .8 125 4.1 2.1 195 TWO OCEAN PLATEAU 9240 4.8 3.0 160 3.8 3.1 123 WHISKEY CREEK 6800 .3 .8 37 3.3 2.2 150 WHITE MILL 8700 4.0 2.0 200 3.8 2.7 141 WOLVERINE 7650 .7 .5 140 2.3 1.8 128 ----- ----- Basin wide percent of average 155 158 WIND RIVER BURROUGHS CREEK 8750 3.0 1.0 300 3.0 1.6 188 COLD SPRINGS 9630 2.8 1.0 280 3.0 1.9 158 DEER PARK 9700 4.8 2.3 209 5.9 2.5 236 HOBBS PARK 10100 5.1 2.3 222 4.9 2.1 233 LITTLE WARM 9370 2.1 1.0 210 2.5 1.7 147 SOUTH PASS 9040 4.1 1.5 273 5.0 2.1 238 ST. LAWRENCE ALT 8620 2.2 .9 244 3.8 1.7 224 TOGWOTEE PASS 9580 4.3 2.6 165 4.3 2.8 154 TOWNSEND CREEK 8700 3.5 1.1 318 4.9 2.1 233 ----- ----- Basin wide percent of average 233 202 BIGHORN BASIN BALD MTN. 9380 3.9 2.8 139 3.4 2.4 142 BEAR TRAP MEADOW 8200 1.3 .6 217 2.1 1.7 124 BLACKWATER 9780 4.5 3.1 145 3.9 2.7 144 BONE SPRINGS DIV 9350 3.3 2.6 127 3.2 2.5 128 EVENING STAR 9200 4.8 2.7 178 5.7 2.8 204 GRAVE SPRINGS 8550 2.6 1.2 217 3.6 2.1 171 KIRWIN 9550 3.0 1.9 158 2.6 1.8 144 MARQUETTE 8760 3.0 2.0 150 -M 2.3 * MIDDLE POWDER 7760 2.8 1.3 215 3.2 2.6 123 OWL CREEK 8975 2.4 .9 267 2.0 1.2 167 POWDER RIVER PASS 9480 2.1 1.3 162 2.5 1.9 132 SHELL CREEK 9580 3.5 2.7 130 2.9 2.0 145 SYLVAN LAKE 8420 1.6 1.9 84 3.1 2.6 119 SYLVAN ROAD 7120 .5 .5 100 2.6 2.1 124 TIMBER CREEK 7950 1.4 1.1 127 2.5 1.6 156 YOUNTS PEAK 8350 2.2 1.4 157 2.2 1.8 122 ----- ----- Basin wide percent of average 153 143 SHOSHONE RIVER BLACKWATER 9780 4.5 3.1 145 3.9 2.7 144 EVENING STAR 9200 4.8 2.7 178 5.7 2.8 204 KIRWIN 9550 3.0 1.9 158 2.6 1.8 144 MARQUETTE 8760 3.0 2.0 150 -M 2.3 * SYLVAN LAKE 8420 1.6 1.9 84 3.1 2.6 119 SYLVAN ROAD 7120 .5 .5 100 2.6 2.1 124 YOUNTS PEAK 8350 2.2 1.4 157 2.2 1.8 122 ----- ----- Basin wide percent of average 145 146 POWDER-TONGUE BEAR TRAP MEADOW 8200 1.3 .6 217 2.1 1.7 124 BIG GOOSE 7990 1.7 .8 212 3.2 2.1 152 BONE SPRINGS DIV 9350 3.3 2.6 127 3.2 2.5 128 BURGESS JUNCTION 7880 3.1 1.5 207 3.8 2.2 173 CLOUD PEAK RESERVOIR 9860 3.2 1.6 200 3.3 2.6 127 DOME LAKE 8880 2.3 1.9 121 3.3 2.5 132 GRAVE SPRINGS 8550 2.6 1.2 217 3.6 2.1 171 HANSEN SAWMILL 8360 1.3 .9 144 2.1 1.8 117 MIDDLE POWDER 7760 2.8 1.3 215 3.2 2.6 123 POWDER RIVER PASS 9480 2.1 1.3 162 2.5 1.9 132 SUCKER CREEK 8880 3.5 1.4 250 4.3 2.4 179 TIE CREEK 6870 1.2 .9 133 3.9 2.5 156 ----- ----- Basin wide percent of average 178 143 BELLE FOURCHE BLIND PARK 6890 1.2 .5 240 4.0 2.6 154 COLE CANYON 5910 .8 1.0 80 4.0 1.9 211 NORTH RAPID CREEK 6130 1.2 .5 240 4.0 2.5 160 ----- ----- Basin wide percent of average 160 171 UPPER N. PLATTE RIVER COLUMBINE 9160 1.2 .8 150 3.9 2.4 162 DIVIDE PEAK 8880 2.6 1.8 144 5.3 2.7 196 ELK RIVER 8700 .2 .6 33 3.1 2.2 141 JOE WRIGHT 10120 4.2 2.5 168 5.0 3.4 147 NORTH FRENCH CREEK 10130 6.9 3.1 223 7.2 3.3 218 OLD BATTLE 10000 7.3 3.0 243 7.6 3.6 211 SAGE CREEK BASIN 7850 1.2 1.0 120 2.8 1.6 175 SOUTH BRUSH CREEK 8440 1.0 .7 143 4.2 2.6 162 TOWER 10500 7.3 3.5 209 7.4 4.0 185 WEBBER SPRINGS 9250 3.4 1.9 179 6.2 3.1 200 WILLOW CREEK PASS 9540 .7 1.2 58 3.1 2.0 155 ----- ----- Basin wide percent of average 179 181 LOWER N. PLATTE - SWEETWATER - LARAMIE BROOKLYN LAKE 10240 4.9 2.2 223 5.6 2.5 224 CASPER MTN. 7900 3.3 1.7 194 3.9 2.5 156 DEADMAN HILL 10220 1.4 2.2 64 4.7 2.5 188 DEER PARK 9700 4.8 2.3 209 5.9 2.5 236 LAPRELE CREEK 8375 1.6 1.0 160 3.6 1.9 189 RENO HILL 8400 3.7 1.7 218 4.9 2.5 196 ROACH 9700 3.6 1.2 300 5.2 2.3 226 SAND LAKE 10050 7.6 3.3 230 7.9 3.0 263 SOUTH PASS 9040 4.1 1.5 273 5.0 2.1 238 WINDY PEAK 7900 1.6 .6 267 3.8 1.7 224 ----- ----- Basin wide percent of average 207 215 LITTLE SNAKE RIVER BATTLE MOUNTAIN 7440 .0 .5 0 2.1 1.9 111 DIVIDE PEAK 8880 2.6 1.8 144 5.3 2.7 196 OLD BATTLE 10000 7.3 3.0 243 7.6 3.6 211 SANDSTONE RS 8150 .0 .5 0 2.4 2.3 104 WHISKEY PARK 8950 2.2 1.7 129 5.8 2.9 200 ----- ----- Basin wide percent of average 161 173 UPPER GREEN RIVER BIG SANDY OPENING 9080 3.2 1.2 267 3.4 1.8 189 BLIND BULL SUM 8650 2.7 1.6 169 2.4 2.2 109 EAST RIM DIVIDE 7930 .3 .6 50 2.0 1.4 143 ELKHART PARK G.S. 9400 2.5 .9 278 2.9 2.0 145 GROS VENTRE SUMMIT 8750 2.2 1.4 157 2.4 1.8 133 GUNSIGHT PASS 9820 1.8 -M * 3.1 -M * KENDALL R.S. 7740 .4 .7 57 2.1 1.6 131 LOOMIS PARK 8240 .5 .9 56 2.5 1.8 139 NEW FORK LAKE 8340 .4 .6 67 2.4 1.6 150 SNIDER BASIN 8060 1.2 .7 171 2.9 1.6 181 SPRING CREEK DIVIDE 9000 3.5 1.5 233 4.2 2.5 168 TRIPLE PEAK 8500 2.7 1.2 225 4.6 2.2 209 ----- ----- Basin wide percent of average 173 155 LOWER GREEN RIVER HAMS FORK 7840 .4 .4 100 3.1 1.4 221 HEWINTA 9519 .9 .9 100 2.4 2.4 100 HICKERSON PARK 9145 2.3 .5 460 3.2 1.7 188 HOLE-IN-ROCK 9150 1.7 .5 340 3.6 1.7 212 INDIAN CREEK 9425 4.6 1.5 307 5.1 2.6 196 KELLEY R.S. 8180 1.3 1.0 130 3.8 2.1 181 STEEL CREEK PARK 10200 1.3 1.6 81 3.1 2.3 135 ----- ----- Basin wide percent of average 195 171 UPPER BEAR RIVER BUG LAKE 7950 .5 1.3 38 3.3 2.4 138 HAYDEN FORK 9212 .6 .9 67 2.8 2.4 117 KELLEY R.S. 8180 1.3 1.0 130 3.8 2.1 181 LILY LAKE 9156 .7 1.0 70 2.2 2.4 92 MONTE CRISTO 8960 2.0 1.6 125 4.1 2.8 146 SALT RIVER SUMMIT 7760 .3 .4 75 2.6 1.9 137 TRIAL LAKE 9992 2.5 1.9 132 3.0 2.8 107 ----- ----- Basin wide percent of average 98 130 ----------------------------------------------------------------------------- -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 1961-90. 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.