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 TUESDAY: NOVEMBER 3 , 2009 ----------------------------------------------------------------------------- BASIN ELEV. SNOW WATER EQUIVALENT TOTAL PRECIPITATION Data Site Name (Ft) % % Current Average Avg Current Average Avg ----------------------------------------------------------------------------- WYOMING SNAKE RIVER BASE CAMP 7030 .3 .8 37 2.6 2.2 118 COTTONWOOD CREEK 7670 .4 1.1 36 4.4 3.3 133 GRAND TARGHEE 9260 6.2 -M * 5.6 -M * GRANITE CREEK 6770 .0 .6 0 2.6 1.9 137 GRASSY LAKE 7265 1.0 1.7 59 3.8 3.6 106 GROS VENTRE SUMMIT 8750 2.1 1.5 140 2.2 2.0 110 GUNSIGHT PASS 9820 1.7 -M * 3.0 -M * LEWIS LAKE DIVIDE 7850 .9 1.5 60 3.8 3.4 112 PHILLIPS BENCH 8200 1.3 1.6 81 3.4 2.6 131 SALT RIVER SUMMIT 7760 .1 .4 25 2.5 2.1 119 SNAKE RIVER STATION 6920 .1 .7 14 3.0 2.4 125 SPRING CREEK DIVIDE 9000 3.4 1.7 200 4.1 2.8 146 THUMB DIVIDE 7980 .9 .9 100 4.1 2.2 186 TOGWOTEE PASS 9580 4.2 2.8 150 4.3 3.0 143 TWO OCEAN PLATEAU 9240 4.7 3.3 142 3.7 3.3 112 WILLOW CREEK 8380 2.1 2.1 100 5.5 4.0 138 ----- ----- Basin wide percent of average 104 129 UPPER YELLOWSTONE-MADISON BEARTOOTH LAKE 9360 3.8 2.9 131 3.2 2.3 139 BLACK BEAR 8170 4.8 3.0 160 6.0 3.8 158 CANYON 7870 1.4 .7 200 3.0 2.0 150 FISHER CREEK 9100 5.0 2.9 172 5.5 3.6 153 MADISON PLATEAU 7750 2.2 1.8 122 5.1 2.7 189 NORTHEAST ENTRANCE 7350 .2 .3 67 2.7 1.7 159 PARKER PEAK 9400 4.8 2.8 171 3.9 2.5 156 SYLVAN LAKE 8420 1.5 2.1 71 3.1 2.8 111 THUMB DIVIDE 7980 .9 .9 100 4.1 2.2 186 TWO OCEAN PLATEAU 9240 4.7 3.3 142 3.7 3.3 112 WHISKEY CREEK 6800 .0 .9 0 3.3 2.4 138 WHITE MILL 8700 4.0 2.1 190 3.8 2.9 131 WOLVERINE 7650 .0 .6 0 2.2 2.0 110 ----- ----- Basin wide percent of average 137 145 WIND RIVER BURROUGHS CREEK 8750 2.9 1.1 264 2.9 1.8 161 COLD SPRINGS 9630 2.5 1.2 208 3.0 2.1 143 DEER PARK 9700 4.7 2.7 174 5.8 2.7 215 HOBBS PARK 10100 5.1 2.4 212 4.9 2.3 213 LITTLE WARM 9370 1.9 1.1 173 2.5 1.9 132 SOUTH PASS 9040 3.9 1.6 244 4.9 2.3 213 ST. LAWRENCE ALT 8620 2.0 1.0 200 3.8 1.9 200 TOGWOTEE PASS 9580 4.2 2.8 150 4.3 3.0 143 TOWNSEND CREEK 8700 3.4 1.2 283 4.9 2.3 213 ----- ----- Basin wide percent of average 203 182 BIGHORN BASIN BALD MTN. 9380 4.0 2.9 138 3.3 2.6 127 BEAR TRAP MEADOW 8200 1.3 .6 217 2.2 1.9 116 BLACKWATER 9780 4.5 3.3 136 3.9 2.9 134 BONE SPRINGS DIV 9350 3.3 2.7 122 3.2 2.7 119 EVENING STAR 9200 4.8 3.0 160 5.8 3.0 193 GRAVE SPRINGS 8550 2.5 1.3 192 3.6 2.2 164 KIRWIN 9550 2.9 2.0 145 2.5 2.0 125 MARQUETTE 8760 2.9 2.0 145 3.2 2.5 128 MIDDLE POWDER 7760 2.7 1.4 193 3.2 2.8 114 OWL CREEK 8975 2.5 .9 278 2.0 1.2 167 POWDER RIVER PASS 9480 2.1 1.4 150 2.5 2.1 119 SHELL CREEK 9580 3.5 2.8 125 3.0 2.2 136 SYLVAN LAKE 8420 1.5 2.1 71 3.1 2.8 111 SYLVAN ROAD 7120 .0 .6 0 2.6 2.3 113 TIMBER CREEK 7950 1.2 1.2 100 2.5 1.7 147 YOUNTS PEAK 8350 2.0 1.6 125 2.2 2.0 110 ----- ----- Basin wide percent of average 140 132 SHOSHONE RIVER BLACKWATER 9780 4.5 3.3 136 3.9 2.9 134 EVENING STAR 9200 4.8 3.0 160 5.8 3.0 193 KIRWIN 9550 2.9 2.0 145 2.5 2.0 125 MARQUETTE 8760 2.9 2.0 145 3.2 2.5 128 SYLVAN LAKE 8420 1.5 2.1 71 3.1 2.8 111 SYLVAN ROAD 7120 .0 .6 0 2.6 2.3 113 YOUNTS PEAK 8350 2.0 1.6 125 2.2 2.0 110 ----- ----- Basin wide percent of average 127 133 POWDER-TONGUE BEAR TRAP MEADOW 8200 1.3 .6 217 2.2 1.9 116 BIG GOOSE 7990 1.7 .9 189 3.2 2.2 145 BONE SPRINGS DIV 9350 3.3 2.7 122 3.2 2.7 119 BURGESS JUNCTION 7880 3.0 1.6 188 3.7 2.4 154 CLOUD PEAK RESERVOIR 9860 3.3 1.7 194 3.3 2.8 118 DOME LAKE 8880 2.3 2.0 115 3.3 2.7 122 GRAVE SPRINGS 8550 2.5 1.3 192 3.6 2.2 164 HANSEN SAWMILL 8360 1.4 .9 156 2.2 2.0 110 MIDDLE POWDER 7760 2.7 1.4 193 3.2 2.8 114 POWDER RIVER PASS 9480 2.1 1.4 150 2.5 2.1 119 SUCKER CREEK 8880 3.5 1.5 233 4.2 2.6 162 TIE CREEK 6870 1.2 .9 133 4.0 2.7 148 ----- ----- Basin wide percent of average 167 133 BELLE FOURCHE BLIND PARK 6890 1.3 .7 186 4.1 2.8 146 COLE CANYON 5910 .5 1.1 45 4.0 2.0 200 NORTH RAPID CREEK 6130 1.1 .6 183 4.0 2.7 148 ----- ----- Basin wide percent of average 121 161 UPPER N. PLATTE RIVER COLUMBINE 9160 1.2 1.0 120 3.9 2.6 150 DIVIDE PEAK 8880 2.6 1.9 137 5.3 2.9 183 ELK RIVER 8700 .0 .7 0 3.2 2.4 133 JOE WRIGHT 10120 3.8 2.8 136 5.0 3.7 135 NORTH FRENCH CREEK 10130 6.9 3.4 203 7.2 3.6 200 OLD BATTLE 10000 7.3 3.3 221 7.7 3.9 197 SAGE CREEK BASIN 7850 1.2 1.1 109 2.8 1.7 165 SOUTH BRUSH CREEK 8440 .9 .8 112 4.1 2.8 146 TOWER 10500 7.3 4.0 182 7.3 4.3 170 WEBBER SPRINGS 9250 3.3 2.1 157 6.2 3.3 188 WILLOW CREEK PASS 9540 .5 1.3 38 3.1 2.2 141 ----- ----- Basin wide percent of average 156 167 LOWER N. PLATTE - SWEETWATER - LARAMIE BROOKLYN LAKE 10240 4.8 2.4 200 5.6 2.7 207 CASPER MTN. 7900 3.3 1.9 174 3.9 2.7 144 DEADMAN HILL 10220 1.3 2.4 54 4.7 2.6 181 DEER PARK 9700 4.7 2.7 174 5.8 2.7 215 LAPRELE CREEK 8375 1.7 1.1 155 3.6 2.0 180 RENO HILL 8400 3.9 1.9 205 4.9 2.7 181 ROACH 9700 3.6 1.3 277 5.2 2.5 208 SAND LAKE 10050 7.6 3.6 211 7.8 3.3 236 SOUTH PASS 9040 3.9 1.6 244 4.9 2.3 213 WINDY PEAK 7900 1.6 .7 229 3.8 1.8 211 ----- ----- Basin wide percent of average 186 198 LITTLE SNAKE RIVER BATTLE MOUNTAIN 7440 .0 .6 0 2.1 2.0 105 DIVIDE PEAK 8880 2.6 1.9 137 5.3 2.9 183 OLD BATTLE 10000 7.3 3.3 221 7.7 3.9 197 SANDSTONE RS 8150 .1 .6 17 2.4 2.5 96 WHISKEY PARK 8950 2.3 1.9 121 5.8 3.2 181 ----- ----- Basin wide percent of average 148 161 UPPER GREEN RIVER BIG SANDY OPENING 9080 2.9 1.4 207 3.2 2.0 160 BLIND BULL SUM 8650 2.7 1.9 142 2.4 2.4 100 EAST RIM DIVIDE 7930 .2 .7 29 2.0 1.5 133 ELKHART PARK G.S. 9400 2.3 1.0 230 2.9 2.1 138 GROS VENTRE SUMMIT 8750 2.1 1.5 140 2.2 2.0 110 GUNSIGHT PASS 9820 1.7 -M * 3.0 -M * KENDALL R.S. 7740 .3 .8 37 2.1 1.7 124 LOOMIS PARK 8240 .4 1.1 36 2.4 2.0 120 NEW FORK LAKE 8340 .3 .7 43 2.1 1.7 124 SNIDER BASIN 8060 1.1 .9 122 2.7 1.8 150 SPRING CREEK DIVIDE 9000 3.4 1.7 200 4.1 2.8 146 TRIPLE PEAK 8500 2.8 1.4 200 4.5 2.4 188 ----- ----- Basin wide percent of average 141 137 LOWER GREEN RIVER HAMS FORK 7840 .2 .5 40 3.1 1.5 207 HEWINTA 9519 -M .9 * 2.3 2.5 92 HICKERSON PARK 9145 2.0 .5 400 3.1 1.8 172 HOLE-IN-ROCK 9150 1.3 .5 260 3.6 1.8 200 INDIAN CREEK 9425 4.4 1.8 244 4.9 2.8 175 KELLEY R.S. 8180 1.2 1.1 109 3.6 2.3 157 STEEL CREEK PARK 10200 1.4 1.8 78 3.1 2.5 124 ----- ----- Basin wide percent of average 169 156 UPPER BEAR RIVER BUG LAKE 7950 .4 1.4 29 3.3 2.5 132 HAYDEN FORK 9212 .2 1.0 20 2.9 2.6 112 KELLEY R.S. 8180 1.2 1.1 109 3.6 2.3 157 LILY LAKE 9156 .7 1.1 64 2.2 2.6 85 MONTE CRISTO 8960 2.2 1.7 129 4.0 3.0 133 SALT RIVER SUMMIT 7760 .1 .4 25 2.5 2.1 119 TRIAL LAKE 9992 2.5 2.1 119 2.9 3.0 97 ----- ----- Basin wide percent of average 83 118 ----------------------------------------------------------------------------- -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.