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 WEDNESDAY: NOVEMBER 4 , 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 2.5 2.3 109 COTTONWOOD CREEK 7670 .3 1.1 27 4.4 3.4 129 GRAND TARGHEE 9260 6.2 -M * 5.6 -M * GRANITE CREEK 6770 .0 .7 0 2.5 2.0 125 GRASSY LAKE 7265 .9 1.8 50 3.7 3.8 97 GROS VENTRE SUMMIT 8750 2.1 1.6 131 2.3 2.0 115 GUNSIGHT PASS 9820 1.7 -M * 3.0 -M * LEWIS LAKE DIVIDE 7850 -M 1.6 * -M 3.6 * PHILLIPS BENCH 8200 1.3 1.7 76 3.3 2.7 122 SALT RIVER SUMMIT 7760 .1 .5 20 2.5 2.2 114 SNAKE RIVER STATION 6920 .0 .8 0 3.0 2.5 120 SPRING CREEK DIVIDE 9000 3.4 1.8 189 4.1 2.9 141 THUMB DIVIDE 7980 .8 1.0 80 4.0 2.3 174 TOGWOTEE PASS 9580 4.2 2.9 145 4.2 3.2 131 TWO OCEAN PLATEAU 9240 4.6 3.4 135 3.6 3.4 106 WILLOW CREEK 8380 1.9 2.2 86 5.5 4.1 134 ----- ----- Basin wide percent of average 98 124 UPPER YELLOWSTONE-MADISON BEARTOOTH LAKE 9360 3.7 3.0 123 3.1 2.4 129 BLACK BEAR 8170 4.7 3.1 152 6.0 4.0 150 CANYON 7870 1.5 .8 188 2.9 2.1 138 FISHER CREEK 9100 4.9 3.1 158 5.5 3.7 149 MADISON PLATEAU 7750 2.1 1.8 117 5.1 2.8 182 NORTHEAST ENTRANCE 7350 .0 .4 0 2.7 1.7 159 PARKER PEAK 9400 4.6 2.9 159 3.9 2.6 150 SYLVAN LAKE 8420 1.3 2.3 57 3.1 2.9 107 THUMB DIVIDE 7980 .8 1.0 80 4.0 2.3 174 TWO OCEAN PLATEAU 9240 4.6 3.4 135 3.6 3.4 106 WHISKEY CREEK 6800 .0 .9 0 3.3 2.5 132 WHITE MILL 8700 3.9 2.2 177 3.8 3.0 127 WOLVERINE 7650 .0 .6 0 2.1 2.0 105 ----- ----- Basin wide percent of average 126 139 WIND RIVER BURROUGHS CREEK 8750 2.9 1.1 264 2.9 1.9 153 COLD SPRINGS 9630 2.4 1.2 200 3.0 2.2 136 DEER PARK 9700 4.6 2.8 164 5.7 2.9 197 HOBBS PARK 10100 5.0 2.5 200 4.9 2.4 204 LITTLE WARM 9370 1.8 1.2 150 2.4 2.0 120 SOUTH PASS 9040 4.0 1.7 235 4.9 2.4 204 ST. LAWRENCE ALT 8620 1.8 1.1 164 3.8 1.9 200 TOGWOTEE PASS 9580 4.2 2.9 145 4.2 3.2 131 TOWNSEND CREEK 8700 3.2 1.2 267 4.9 2.4 204 ----- ----- Basin wide percent of average 190 172 BIGHORN BASIN BALD MTN. 9380 3.9 3.1 126 3.3 2.7 122 BEAR TRAP MEADOW 8200 1.3 .7 186 2.2 1.9 116 BLACKWATER 9780 4.3 3.4 126 3.8 3.0 127 BONE SPRINGS DIV 9350 3.2 2.8 114 3.1 2.8 111 EVENING STAR 9200 4.8 3.1 155 5.7 3.2 178 GRAVE SPRINGS 8550 2.4 1.4 171 3.6 2.3 157 KIRWIN 9550 2.9 2.1 138 2.5 2.0 125 MARQUETTE 8760 2.8 2.1 133 3.0 2.5 120 MIDDLE POWDER 7760 2.6 1.5 173 3.2 2.9 110 OWL CREEK 8975 2.4 1.0 240 2.0 1.3 154 POWDER RIVER PASS 9480 2.1 1.4 150 2.5 2.1 119 SHELL CREEK 9580 3.4 2.9 117 3.0 2.2 136 SYLVAN LAKE 8420 1.3 2.3 57 3.1 2.9 107 SYLVAN ROAD 7120 .0 .6 0 2.6 2.4 108 TIMBER CREEK 7950 1.1 1.3 85 2.5 1.8 139 YOUNTS PEAK 8350 2.1 1.7 124 2.2 2.1 105 ----- ----- Basin wide percent of average 129 127 SHOSHONE RIVER BLACKWATER 9780 4.3 3.4 126 3.8 3.0 127 EVENING STAR 9200 4.8 3.1 155 5.7 3.2 178 KIRWIN 9550 2.9 2.1 138 2.5 2.0 125 MARQUETTE 8760 2.8 2.1 133 3.0 2.5 120 SYLVAN LAKE 8420 1.3 2.3 57 3.1 2.9 107 SYLVAN ROAD 7120 .0 .6 0 2.6 2.4 108 YOUNTS PEAK 8350 2.1 1.7 124 2.2 2.1 105 ----- ----- Basin wide percent of average 119 127 POWDER-TONGUE BEAR TRAP MEADOW 8200 1.3 .7 186 2.2 1.9 116 BIG GOOSE 7990 1.6 1.0 160 3.2 2.3 139 BONE SPRINGS DIV 9350 3.2 2.8 114 3.1 2.8 111 BURGESS JUNCTION 7880 2.9 1.8 161 3.7 2.4 154 CLOUD PEAK RESERVOIR 9860 3.3 1.9 174 3.3 2.9 114 DOME LAKE 8880 2.2 2.1 105 3.2 2.8 114 GRAVE SPRINGS 8550 2.4 1.4 171 3.6 2.3 157 HANSEN SAWMILL 8360 1.2 1.0 120 2.1 2.0 105 MIDDLE POWDER 7760 2.6 1.5 173 3.2 2.9 110 POWDER RIVER PASS 9480 2.1 1.4 150 2.5 2.1 119 SUCKER CREEK 8880 3.4 1.6 212 4.2 2.6 162 TIE CREEK 6870 1.1 .9 122 4.0 2.7 148 ----- ----- Basin wide percent of average 151 129 BELLE FOURCHE BLIND PARK 6890 1.1 .8 138 4.1 2.8 146 COLE CANYON 5910 .3 1.1 27 4.0 2.0 200 NORTH RAPID CREEK 6130 1.1 .6 183 4.0 2.7 148 ----- ----- Basin wide percent of average 100 161 UPPER N. PLATTE RIVER COLUMBINE 9160 1.2 1.1 109 4.0 2.7 148 DIVIDE PEAK 8880 2.6 2.0 130 5.3 3.0 177 ELK RIVER 8700 .0 .8 0 3.2 2.4 133 JOE WRIGHT 10120 3.6 2.9 124 5.0 3.8 132 NORTH FRENCH CREEK 10130 6.9 3.5 197 7.2 3.7 195 OLD BATTLE 10000 7.3 3.5 209 7.7 4.0 192 SAGE CREEK BASIN 7850 1.2 1.2 100 2.8 1.8 156 SOUTH BRUSH CREEK 8440 .8 .9 89 4.2 2.9 145 TOWER 10500 7.3 4.2 174 7.4 4.5 164 WEBBER SPRINGS 9250 3.4 2.2 155 6.2 3.5 177 WILLOW CREEK PASS 9540 .5 1.4 36 3.0 2.2 136 ----- ----- Basin wide percent of average 147 162 LOWER N. PLATTE - SWEETWATER - LARAMIE BROOKLYN LAKE 10240 4.8 2.5 192 5.6 2.8 200 CASPER MTN. 7900 3.1 2.0 155 3.9 2.8 139 DEADMAN HILL 10220 1.2 2.5 48 4.7 2.7 174 DEER PARK 9700 4.6 2.8 164 5.7 2.9 197 LAPRELE CREEK 8375 1.6 1.2 133 3.5 2.1 167 RENO HILL 8400 3.7 1.9 195 4.8 2.8 171 ROACH 9700 3.6 1.4 257 5.1 2.6 196 SAND LAKE 10050 7.6 3.8 200 7.8 3.4 229 SOUTH PASS 9040 4.0 1.7 235 4.9 2.4 204 WINDY PEAK 7900 1.5 .7 214 3.7 1.9 195 ----- ----- Basin wide percent of average 174 188 LITTLE SNAKE RIVER BATTLE MOUNTAIN 7440 .1 .6 17 2.1 2.1 100 DIVIDE PEAK 8880 2.6 2.0 130 5.3 3.0 177 OLD BATTLE 10000 7.3 3.5 209 7.7 4.0 192 SANDSTONE RS 8150 .0 .6 0 2.4 2.6 92 WHISKEY PARK 8950 2.3 2.1 110 5.8 3.3 176 ----- ----- Basin wide percent of average 140 155 UPPER GREEN RIVER BIG SANDY OPENING 9080 3.0 1.4 214 3.2 2.0 160 BLIND BULL SUM 8650 2.7 2.0 135 2.4 2.5 96 EAST RIM DIVIDE 7930 .2 .8 25 2.0 1.5 133 ELKHART PARK G.S. 9400 2.3 1.0 230 2.9 2.2 132 GROS VENTRE SUMMIT 8750 2.1 1.6 131 2.3 2.0 115 GUNSIGHT PASS 9820 1.7 -M * 3.0 -M * KENDALL R.S. 7740 .2 .9 22 2.0 1.8 111 LOOMIS PARK 8240 .4 1.1 36 2.4 2.1 114 NEW FORK LAKE 8340 .3 .7 43 1.9 1.8 106 SNIDER BASIN 8060 1.1 .9 122 2.7 1.8 150 SPRING CREEK DIVIDE 9000 3.4 1.8 189 4.1 2.9 141 TRIPLE PEAK 8500 3.0 1.5 200 4.4 2.5 176 ----- ----- Basin wide percent of average 136 131 LOWER GREEN RIVER HAMS FORK 7840 .2 .5 40 3.1 1.6 194 HEWINTA 9519 -M 1.0 * 2.3 2.6 88 HICKERSON PARK 9145 2.0 .6 333 3.1 1.9 163 HOLE-IN-ROCK 9150 1.2 .6 200 3.7 1.8 206 INDIAN CREEK 9425 4.5 1.9 237 4.9 2.9 169 KELLEY R.S. 8180 1.2 1.2 100 3.6 2.4 150 STEEL CREEK PARK 10200 1.5 1.8 83 3.0 2.6 115 ----- ----- Basin wide percent of average 161 150 UPPER BEAR RIVER BUG LAKE 7950 .4 1.5 27 3.3 2.6 127 HAYDEN FORK 9212 .2 1.0 20 2.9 2.7 107 KELLEY R.S. 8180 1.2 1.2 100 3.6 2.4 150 LILY LAKE 9156 .7 1.1 64 2.3 2.7 85 MONTE CRISTO 8960 2.3 1.8 128 4.0 3.1 129 SALT RIVER SUMMIT 7760 .1 .5 20 2.5 2.2 114 TRIAL LAKE 9992 2.4 2.2 109 2.9 3.1 94 ----- ----- Basin wide percent of average 78 114 ----------------------------------------------------------------------------- -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.