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 THURSDAY: NOVEMBER 5 , 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 .9 33 2.5 2.4 104 COTTONWOOD CREEK 7670 .4 1.2 33 4.4 3.5 126 GRAND TARGHEE 9260 6.3 -M * 5.7 -M * GRANITE CREEK 6770 .0 .7 0 2.5 2.1 119 GRASSY LAKE 7265 1.2 1.9 63 3.8 3.9 97 GROS VENTRE SUMMIT 8750 2.1 1.6 131 2.3 2.1 110 GUNSIGHT PASS 9820 1.8 -M * 3.1 -M * LEWIS LAKE DIVIDE 7850 -M 1.7 * -M 3.7 * PHILLIPS BENCH 8200 1.3 1.9 68 3.4 2.8 121 SALT RIVER SUMMIT 7760 .1 .5 20 2.6 2.3 113 SNAKE RIVER STATION 6920 .1 .8 12 3.0 2.6 115 SPRING CREEK DIVIDE 9000 3.4 1.9 179 4.2 3.0 140 THUMB DIVIDE 7980 .9 1.1 82 4.0 2.4 167 TOGWOTEE PASS 9580 4.2 3.0 140 4.3 3.3 130 TWO OCEAN PLATEAU 9240 4.8 3.6 133 3.7 3.6 103 WILLOW CREEK 8380 2.0 2.4 83 5.5 4.3 128 ----- ----- Basin wide percent of average 97 121 UPPER YELLOWSTONE-MADISON BEARTOOTH LAKE 9360 3.9 3.1 126 3.2 2.5 128 BLACK BEAR 8170 4.7 3.2 147 6.0 4.2 143 CANYON 7870 1.4 .8 175 2.9 2.2 132 FISHER CREEK 9100 5.0 3.2 156 5.5 3.9 141 MADISON PLATEAU 7750 2.2 1.9 116 5.1 2.9 176 NORTHEAST ENTRANCE 7350 .0 .4 0 2.7 1.8 150 PARKER PEAK 9400 4.7 3.0 157 3.8 2.6 146 SYLVAN LAKE 8420 1.5 2.4 62 3.2 3.0 107 THUMB DIVIDE 7980 .9 1.1 82 4.0 2.4 167 TWO OCEAN PLATEAU 9240 4.8 3.6 133 3.7 3.6 103 WHISKEY CREEK 6800 .1 1.0 10 3.1 2.6 119 WHITE MILL 8700 4.0 2.3 174 3.9 3.2 122 WOLVERINE 7650 .3 .6 50 2.2 2.1 105 ----- ----- Basin wide percent of average 126 133 WIND RIVER BURROUGHS CREEK 8750 2.9 1.2 242 2.8 2.0 140 COLD SPRINGS 9630 2.5 1.3 192 3.0 2.2 136 DEER PARK 9700 4.7 3.0 157 5.8 3.0 193 HOBBS PARK 10100 5.1 2.6 196 5.0 2.5 200 LITTLE WARM 9370 2.0 1.2 167 2.5 2.0 125 SOUTH PASS 9040 4.0 1.8 222 4.9 2.5 196 ST. LAWRENCE ALT 8620 2.1 1.1 191 3.8 2.0 190 TOGWOTEE PASS 9580 4.2 3.0 140 4.3 3.3 130 TOWNSEND CREEK 8700 3.4 1.3 262 4.9 2.4 204 ----- ----- Basin wide percent of average 187 169 BIGHORN BASIN BALD MTN. 9380 4.1 3.2 128 3.5 2.8 125 BEAR TRAP MEADOW 8200 1.4 .7 200 2.2 2.0 110 BLACKWATER 9780 4.4 3.5 126 3.9 3.1 126 BONE SPRINGS DIV 9350 3.3 2.9 114 3.2 2.8 114 EVENING STAR 9200 4.9 3.2 153 5.9 3.3 179 GRAVE SPRINGS 8550 2.6 1.5 173 3.7 2.3 161 KIRWIN 9550 3.0 2.3 130 2.6 2.1 124 MARQUETTE 8760 3.0 2.2 136 3.2 2.6 123 MIDDLE POWDER 7760 2.6 1.6 162 3.2 3.0 107 OWL CREEK 8975 2.4 1.0 240 2.1 1.3 162 POWDER RIVER PASS 9480 2.1 1.5 140 2.4 2.2 109 SHELL CREEK 9580 3.6 3.0 120 3.1 2.3 135 SYLVAN LAKE 8420 1.5 2.4 62 3.2 3.0 107 SYLVAN ROAD 7120 .3 .7 43 2.6 2.5 104 TIMBER CREEK 7950 1.1 1.4 79 2.5 1.8 139 YOUNTS PEAK 8350 2.3 1.7 135 2.2 2.2 100 ----- ----- Basin wide percent of average 130 126 SHOSHONE RIVER BLACKWATER 9780 4.4 3.5 126 3.9 3.1 126 EVENING STAR 9200 4.9 3.2 153 5.9 3.3 179 KIRWIN 9550 3.0 2.3 130 2.6 2.1 124 MARQUETTE 8760 3.0 2.2 136 3.2 2.6 123 SYLVAN LAKE 8420 1.5 2.4 62 3.2 3.0 107 SYLVAN ROAD 7120 .3 .7 43 2.6 2.5 104 YOUNTS PEAK 8350 2.3 1.7 135 2.2 2.2 100 ----- ----- Basin wide percent of average 121 126 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 2.9 114 3.2 2.8 114 BURGESS JUNCTION 7880 3.0 1.9 158 3.8 2.5 152 CLOUD PEAK RESERVOIR 9860 3.4 1.9 179 3.5 3.0 117 DOME LAKE 8880 2.4 2.2 109 3.4 2.8 121 GRAVE SPRINGS 8550 2.6 1.5 173 3.7 2.3 161 HANSEN SAWMILL 8360 1.3 1.0 130 2.2 2.1 105 MIDDLE POWDER 7760 2.6 1.6 162 3.2 3.0 107 POWDER RIVER PASS 9480 2.1 1.5 140 2.4 2.2 109 SUCKER CREEK 8880 3.6 1.7 212 4.3 2.7 159 TIE CREEK 6870 1.1 1.0 110 4.0 2.7 148 ----- ----- Basin wide percent of average 151 129 BELLE FOURCHE BLIND PARK 6890 1.1 .9 122 4.1 2.9 141 COLE CANYON 5910 .5 1.1 45 4.0 2.0 200 NORTH RAPID CREEK 6130 1.1 .6 183 4.1 2.7 152 ----- ----- Basin wide percent of average 104 161 UPPER N. PLATTE RIVER COLUMBINE 9160 1.3 1.2 108 3.9 2.8 139 DIVIDE PEAK 8880 2.5 2.1 119 5.3 3.1 171 ELK RIVER 8700 .0 .8 0 3.2 2.5 128 JOE WRIGHT 10120 3.4 3.1 110 4.9 3.9 126 NORTH FRENCH CREEK 10130 6.9 3.7 186 7.2 3.9 185 OLD BATTLE 10000 7.3 3.6 203 7.8 4.2 186 SAGE CREEK BASIN 7850 1.3 1.2 108 2.8 1.8 156 SOUTH BRUSH CREEK 8440 .9 .9 100 4.2 3.0 140 TOWER 10500 7.3 4.5 162 7.4 4.7 157 WEBBER SPRINGS 9250 3.4 2.4 142 6.2 3.6 172 WILLOW CREEK PASS 9540 .5 1.5 33 3.1 2.3 135 ----- ----- Basin wide percent of average 139 156 LOWER N. PLATTE - SWEETWATER - LARAMIE BROOKLYN LAKE 10240 4.8 2.6 185 5.6 2.9 193 CASPER MTN. 7900 3.3 2.1 157 4.0 2.9 138 DEADMAN HILL 10220 1.2 2.6 46 4.7 2.8 168 DEER PARK 9700 4.7 3.0 157 5.8 3.0 193 LAPRELE CREEK 8375 1.7 1.3 131 3.6 2.2 164 RENO HILL 8400 3.7 2.0 185 5.0 2.9 172 ROACH 9700 3.6 1.5 240 5.1 2.7 189 SAND LAKE 10050 7.6 3.9 195 7.9 3.5 226 SOUTH PASS 9040 4.0 1.8 222 4.9 2.5 196 WINDY PEAK 7900 1.6 .8 200 3.9 2.0 195 ----- ----- Basin wide percent of average 168 184 LITTLE SNAKE RIVER BATTLE MOUNTAIN 7440 .1 .7 14 2.1 2.2 95 DIVIDE PEAK 8880 2.5 2.1 119 5.3 3.1 171 OLD BATTLE 10000 7.3 3.6 203 7.8 4.2 186 SANDSTONE RS 8150 .0 .7 0 2.4 2.7 89 WHISKEY PARK 8950 2.3 2.2 105 5.8 3.4 171 ----- ----- Basin wide percent of average 131 150 UPPER GREEN RIVER BIG SANDY OPENING 9080 3.0 1.5 200 3.3 2.1 157 BLIND BULL SUM 8650 2.7 2.1 129 2.4 2.6 92 EAST RIM DIVIDE 7930 .2 .8 25 2.0 1.6 125 ELKHART PARK G.S. 9400 2.5 1.1 227 2.9 2.3 126 GROS VENTRE SUMMIT 8750 2.1 1.6 131 2.3 2.1 110 GUNSIGHT PASS 9820 1.8 -M * 3.1 -M * KENDALL R.S. 7740 .3 .9 33 2.1 1.8 117 LOOMIS PARK 8240 .5 1.2 42 2.5 2.1 119 NEW FORK LAKE 8340 .3 .8 37 2.1 1.8 117 SNIDER BASIN 8060 1.0 1.0 100 2.7 1.9 142 SPRING CREEK DIVIDE 9000 3.4 1.9 179 4.2 3.0 140 TRIPLE PEAK 8500 3.4 1.6 212 4.4 2.7 163 ----- ----- Basin wide percent of average 134 129 LOWER GREEN RIVER HAMS FORK 7840 .2 .6 33 3.1 1.7 182 HEWINTA 9519 -M 1.0 * 2.3 2.7 85 HICKERSON PARK 9145 1.9 .6 317 3.3 1.9 174 HOLE-IN-ROCK 9150 1.2 .6 200 3.7 1.9 195 INDIAN CREEK 9425 4.6 2.0 230 5.1 3.0 170 KELLEY R.S. 8180 1.3 1.3 100 3.6 2.5 144 STEEL CREEK PARK 10200 1.6 1.9 84 3.0 2.7 111 ----- ----- Basin wide percent of average 154 147 UPPER BEAR RIVER BUG LAKE 7950 .6 1.5 40 3.4 2.7 126 HAYDEN FORK 9212 .2 1.1 18 2.9 2.8 104 KELLEY R.S. 8180 1.3 1.3 100 3.6 2.5 144 LILY LAKE 9156 .8 1.2 67 2.2 2.8 79 MONTE CRISTO 8960 2.2 1.9 116 4.1 3.3 124 SALT RIVER SUMMIT 7760 .1 .5 20 2.6 2.3 113 TRIAL LAKE 9992 2.5 2.3 109 2.9 3.2 91 ----- ----- Basin wide percent of average 79 111 ----------------------------------------------------------------------------- -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.