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 6 , 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 1.0 30 2.5 2.5 100 COTTONWOOD CREEK 7670 .5 1.3 38 4.4 3.7 119 GRAND TARGHEE 9260 6.3 -M * 5.7 -M * GRANITE CREEK 6770 .1 .8 12 2.6 2.2 118 GRASSY LAKE 7265 1.5 2.0 75 4.0 4.1 98 GROS VENTRE SUMMIT 8750 2.2 1.7 129 2.3 2.2 105 GUNSIGHT PASS 9820 1.9 -M * 3.1 -M * LEWIS LAKE DIVIDE 7850 -M 1.9 * -M 3.9 * PHILLIPS BENCH 8200 1.4 2.0 70 3.5 2.9 121 SALT RIVER SUMMIT 7760 .1 .6 17 2.5 2.3 109 SNAKE RIVER STATION 6920 .1 .9 11 3.0 2.7 111 SPRING CREEK DIVIDE 9000 3.4 2.1 162 4.2 3.2 131 THUMB DIVIDE 7980 1.0 1.2 83 4.1 2.5 164 TOGWOTEE PASS 9580 4.2 3.2 131 4.3 3.4 126 TWO OCEAN PLATEAU 9240 4.8 3.7 130 3.7 3.7 100 WILLOW CREEK 8380 2.0 2.5 80 5.5 4.4 125 ----- ----- Basin wide percent of average 94 117 UPPER YELLOWSTONE-MADISON BEARTOOTH LAKE 9360 3.9 3.3 118 3.3 2.6 127 BLACK BEAR 8170 4.7 3.4 138 6.0 4.4 136 CANYON 7870 1.4 .9 156 3.0 2.3 130 FISHER CREEK 9100 5.0 3.3 152 5.6 4.1 137 MADISON PLATEAU 7750 2.2 2.0 110 5.2 3.0 173 NORTHEAST ENTRANCE 7350 .1 .5 20 2.8 1.9 147 PARKER PEAK 9400 4.9 3.1 158 3.9 2.7 144 SYLVAN LAKE 8420 1.5 2.4 62 3.2 3.1 103 THUMB DIVIDE 7980 1.0 1.2 83 4.1 2.5 164 TWO OCEAN PLATEAU 9240 4.8 3.7 130 3.7 3.7 100 WHISKEY CREEK 6800 .2 1.0 20 3.2 2.7 119 WHITE MILL 8700 4.0 2.5 160 4.0 3.3 121 WOLVERINE 7650 .3 .7 43 2.3 2.2 105 ----- ----- Basin wide percent of average 121 131 WIND RIVER BURROUGHS CREEK 8750 3.0 1.4 214 2.9 2.0 145 COLD SPRINGS 9630 2.6 1.4 186 3.0 2.3 130 DEER PARK 9700 4.7 3.0 157 5.9 3.2 184 HOBBS PARK 10100 5.0 2.6 192 4.9 2.6 188 LITTLE WARM 9370 2.0 1.3 154 2.5 2.1 119 SOUTH PASS 9040 4.0 2.0 200 5.0 2.7 185 ST. LAWRENCE ALT 8620 2.2 1.1 200 3.8 2.1 181 TOGWOTEE PASS 9580 4.2 3.2 131 4.3 3.4 126 TOWNSEND CREEK 8700 3.4 1.4 243 4.9 2.5 196 ----- ----- Basin wide percent of average 179 162 BIGHORN BASIN BALD MTN. 9380 4.0 3.3 121 3.5 2.8 125 BEAR TRAP MEADOW 8200 1.4 .7 200 2.2 2.0 110 BLACKWATER 9780 4.5 3.6 125 3.9 3.2 122 BONE SPRINGS DIV 9350 3.3 3.1 106 3.4 2.9 117 EVENING STAR 9200 4.9 3.3 148 5.8 3.5 166 GRAVE SPRINGS 8550 2.6 1.5 173 3.7 2.3 161 KIRWIN 9550 3.1 2.3 135 2.6 2.2 118 MARQUETTE 8760 3.0 2.3 130 3.1 2.7 115 MIDDLE POWDER 7760 2.6 1.6 162 3.3 3.0 110 OWL CREEK 8975 2.5 1.0 250 2.1 1.4 150 POWDER RIVER PASS 9480 2.1 1.6 131 2.5 2.3 109 SHELL CREEK 9580 3.7 3.1 119 3.1 2.4 129 SYLVAN LAKE 8420 1.5 2.4 62 3.2 3.1 103 SYLVAN ROAD 7120 .4 .7 57 2.6 2.6 100 TIMBER CREEK 7950 1.2 1.4 86 2.4 1.9 126 YOUNTS PEAK 8350 2.5 1.8 139 2.2 2.3 96 ----- ----- Basin wide percent of average 128 122 SHOSHONE RIVER BLACKWATER 9780 4.5 3.6 125 3.9 3.2 122 EVENING STAR 9200 4.9 3.3 148 5.8 3.5 166 KIRWIN 9550 3.1 2.3 135 2.6 2.2 118 MARQUETTE 8760 3.0 2.3 130 3.1 2.7 115 SYLVAN LAKE 8420 1.5 2.4 62 3.2 3.1 103 SYLVAN ROAD 7120 .4 .7 57 2.6 2.6 100 YOUNTS PEAK 8350 2.5 1.8 139 2.2 2.3 96 ----- ----- Basin wide percent of average 121 119 POWDER-TONGUE BEAR TRAP MEADOW 8200 1.4 .7 200 2.2 2.0 110 BIG GOOSE 7990 1.8 1.0 180 3.3 2.3 143 BONE SPRINGS DIV 9350 3.3 3.1 106 3.4 2.9 117 BURGESS JUNCTION 7880 3.1 1.9 163 4.1 2.6 158 CLOUD PEAK RESERVOIR 9860 3.4 2.0 170 3.5 3.0 117 DOME LAKE 8880 2.3 2.3 100 3.4 2.9 117 GRAVE SPRINGS 8550 2.6 1.5 173 3.7 2.3 161 HANSEN SAWMILL 8360 1.4 1.0 140 2.2 2.1 105 MIDDLE POWDER 7760 2.6 1.6 162 3.3 3.0 110 POWDER RIVER PASS 9480 2.1 1.6 131 2.5 2.3 109 SUCKER CREEK 8880 3.6 1.7 212 4.4 2.8 157 TIE CREEK 6870 1.0 1.1 91 4.0 2.8 143 ----- ----- Basin wide percent of average 147 129 BELLE FOURCHE BLIND PARK 6890 1.3 1.1 118 4.1 3.0 137 COLE CANYON 5910 .0 1.1 0 4.1 2.1 195 NORTH RAPID CREEK 6130 1.2 .6 200 4.1 2.8 146 ----- ----- Basin wide percent of average 89 156 UPPER N. PLATTE RIVER COLUMBINE 9160 1.2 1.3 92 4.0 2.9 138 DIVIDE PEAK 8880 2.5 2.2 114 5.3 3.2 166 ELK RIVER 8700 .0 .9 0 3.2 2.6 123 JOE WRIGHT 10120 3.5 3.2 109 5.0 4.0 125 NORTH FRENCH CREEK 10130 6.9 3.8 182 7.3 4.0 182 OLD BATTLE 10000 7.4 3.8 195 7.8 4.3 181 SAGE CREEK BASIN 7850 1.3 1.3 100 2.8 1.9 147 SOUTH BRUSH CREEK 8440 .9 1.0 90 4.3 3.1 139 TOWER 10500 7.2 4.7 153 7.6 4.9 155 WEBBER SPRINGS 9250 3.3 2.5 132 6.2 3.7 168 WILLOW CREEK PASS 9540 .6 1.5 40 3.1 2.4 129 ----- ----- Basin wide percent of average 133 153 LOWER N. PLATTE - SWEETWATER - LARAMIE BROOKLYN LAKE 10240 4.7 2.7 174 5.6 3.0 187 CASPER MTN. 7900 3.3 2.2 150 4.0 3.0 133 DEADMAN HILL 10220 1.3 2.7 48 4.7 2.9 162 DEER PARK 9700 4.7 3.0 157 5.9 3.2 184 LAPRELE CREEK 8375 1.7 1.3 131 3.7 2.3 161 RENO HILL 8400 3.7 2.1 176 5.1 3.0 170 ROACH 9700 3.6 1.6 225 5.1 2.8 182 SAND LAKE 10050 7.6 4.1 185 8.0 3.6 222 SOUTH PASS 9040 4.0 2.0 200 5.0 2.7 185 WINDY PEAK 7900 1.5 .8 188 3.9 2.0 195 ----- ----- Basin wide percent of average 160 179 LITTLE SNAKE RIVER BATTLE MOUNTAIN 7440 .1 .7 14 2.2 2.3 96 DIVIDE PEAK 8880 2.5 2.2 114 5.3 3.2 166 OLD BATTLE 10000 7.4 3.8 195 7.8 4.3 181 SANDSTONE RS 8150 -M .7 * 2.4 2.8 86 WHISKEY PARK 8950 2.3 2.3 100 5.8 3.5 166 ----- ----- Basin wide percent of average 137 146 UPPER GREEN RIVER BIG SANDY OPENING 9080 3.1 1.6 194 3.3 2.2 150 BLIND BULL SUM 8650 2.8 2.3 122 2.4 2.7 89 EAST RIM DIVIDE 7930 .2 .9 22 2.0 1.7 118 ELKHART PARK G.S. 9400 2.5 1.2 208 3.0 2.3 130 GROS VENTRE SUMMIT 8750 2.2 1.7 129 2.3 2.2 105 GUNSIGHT PASS 9820 1.9 -M * 3.1 -M * KENDALL R.S. 7740 .3 1.0 30 2.1 1.9 111 LOOMIS PARK 8240 .5 1.3 38 2.4 2.2 109 NEW FORK LAKE 8340 .4 .8 50 2.3 1.9 121 SNIDER BASIN 8060 1.1 1.1 100 2.8 2.0 140 SPRING CREEK DIVIDE 9000 3.4 2.1 162 4.2 3.2 131 TRIPLE PEAK 8500 3.3 1.8 183 4.6 2.8 164 ----- ----- Basin wide percent of average 125 125 LOWER GREEN RIVER HAMS FORK 7840 .2 .6 33 3.1 1.7 182 HEWINTA 9519 .3 1.0 30 2.4 2.8 86 HICKERSON PARK 9145 1.8 .6 300 3.4 2.0 170 HOLE-IN-ROCK 9150 1.2 .6 200 3.7 1.9 195 INDIAN CREEK 9425 4.6 2.1 219 5.1 3.2 159 KELLEY R.S. 8180 1.3 1.4 93 3.7 2.6 142 STEEL CREEK PARK 10200 1.6 2.0 80 3.0 2.8 107 ----- ----- Basin wide percent of average 133 144 UPPER BEAR RIVER BUG LAKE 7950 .7 1.6 44 3.4 2.8 121 HAYDEN FORK 9212 .1 1.1 9 2.9 2.9 100 KELLEY R.S. 8180 1.3 1.4 93 3.7 2.6 142 LILY LAKE 9156 1.0 1.2 83 2.3 2.9 79 MONTE CRISTO 8960 2.1 2.0 105 4.1 3.4 121 SALT RIVER SUMMIT 7760 .1 .6 17 2.5 2.3 109 TRIAL LAKE 9992 2.5 2.4 104 2.9 3.3 88 ----- ----- Basin wide percent of average 76 108 ----------------------------------------------------------------------------- -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.