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 25 , 2010 ----------------------------------------------------------------------------- BASIN ELEV. SNOW WATER EQUIVALENT TOTAL PRECIPITATION Data Site Name (Ft) % % Current Average Avg Current Average Avg ----------------------------------------------------------------------------- WYOMING SNAKE RIVER BASE CAMP 7030 4.3 3.3 130 7.3 5.2 140 COTTONWOOD CREEK 7670 7.9 3.7 214 11.5 6.9 167 GRAND TARGHEE 9260 13.9 -M * 10.0 -M * GRANITE CREEK 6770 3.6 2.7 133 6.2 4.6 135 GRASSY LAKE 7265 6.8 6.2 110 9.9 8.2 121 GROS VENTRE SUMMIT 8750 4.1 3.3 124 4.2 3.8 111 GUNSIGHT PASS 9820 4.2 -M * 4.8 -M * LEWIS LAKE DIVIDE 7850 7.6 6.2 123 9.8 8.3 118 PHILLIPS BENCH 8200 8.8 5.2 169 9.9 6.3 157 SALT RIVER SUMMIT 7760 3.3 2.0 165 6.4 4.3 149 SNAKE RIVER STATION 6920 3.5 3.2 109 7.7 5.5 140 SPRING CREEK DIVIDE 9000 8.0 5.6 143 8.9 6.3 141 THUMB DIVIDE 7980 5.2 3.3 158 6.2 4.6 135 TOGWOTEE PASS 9580 8.2 6.1 134 9.1 6.3 144 TWO OCEAN PLATEAU 9240 10.2 7.2 142 8.0 7.1 113 WILLOW CREEK 8380 7.9 6.3 125 12.6 8.1 156 ----- ----- Basin wide percent of average 139 138 UPPER YELLOWSTONE-MADISON BEARTOOTH LAKE 9360 6.4 6.1 105 6.3 5.0 126 BLACK BEAR 8170 10.6 8.1 131 12.3 9.0 137 CANYON 7870 4.0 2.7 148 5.2 4.2 124 FISHER CREEK 9100 9.2 7.7 119 9.6 8.4 114 MADISON PLATEAU 7750 6.7 5.1 131 8.6 6.1 141 NORTHEAST ENTRANCE 7350 2.6 1.9 137 4.8 3.5 137 PARKER PEAK 9400 6.9 5.8 119 7.1 4.8 148 SYLVAN LAKE 8420 5.3 5.6 95 7.7 6.1 126 THUMB DIVIDE 7980 5.2 3.3 158 6.2 4.6 135 TWO OCEAN PLATEAU 9240 10.2 7.2 142 8.0 7.1 113 WHISKEY CREEK 6800 3.9 3.1 126 6.8 5.1 133 WHITE MILL 8700 6.5 5.5 118 7.3 6.6 111 WOLVERINE 7650 3.5 2.3 152 3.9 3.9 100 ----- ----- Basin wide percent of average 126 126 WIND RIVER BURROUGHS CREEK 8750 -M 3.2 * 3.5 4.2 83 CASTLE CREEK 8400 1.2 -M * 1.8 -M * COLD SPRINGS 9630 1.9 2.7 70 2.2 3.8 58 DEER PARK 9700 -M 4.1 * 6.2 6.3 98 HOBBS PARK 10100 4.2 4.6 91 3.7 4.2 88 LITTLE WARM 9370 3.1 2.8 111 2.8 4.0 70 SOUTH PASS 9040 4.0 4.2 95 3.9 5.2 75 ST. LAWRENCE ALT 8620 .8 2.2 36 1.8 3.2 56 TOGWOTEE PASS 9580 8.2 6.1 134 9.1 6.3 144 TOWNSEND CREEK 8700 1.8 2.5 72 3.8 4.1 93 ----- ----- Basin wide percent of average 96 90 BIGHORN BASIN BALD MTN. 9380 6.1 5.2 117 5.3 4.7 113 BEAR TRAP MEADOW 8200 1.0 1.4 71 2.0 3.1 65 BLACKWATER 9780 6.7 6.7 100 6.1 6.2 98 BONE SPRINGS DIV 9350 4.6 4.8 96 3.4 4.5 76 EVENING STAR 9200 7.2 7.0 103 8.4 7.1 118 GRAVE SPRINGS 8550 2.1 2.4 88 3.1 3.3 94 KIRWIN 9550 3.2 3.7 86 3.4 3.7 92 MARQUETTE 8760 .1 3.3 3 1.5 3.8 39 MIDDLE POWDER 7760 3.1 3.1 100 2.2 4.5 49 OWL CREEK 8975 .7 1.7 41 1.2 2.0 60 POWDER RIVER PASS 9480 3.7 2.8 132 4.1 3.7 111 SHELL CREEK 9580 4.3 4.6 93 4.1 4.0 103 SYLVAN LAKE 8420 5.3 5.6 95 7.7 6.1 126 SYLVAN ROAD 7120 3.1 2.7 115 5.5 5.7 96 TIMBER CREEK 7950 .7 2.1 33 1.2 2.8 43 YOUNTS PEAK 8350 4.5 4.0 113 4.0 4.5 89 ----- ----- Basin wide percent of average 92 91 SHOSHONE RIVER BLACKWATER 9780 6.7 6.7 100 6.1 6.2 98 EVENING STAR 9200 7.2 7.0 103 8.4 7.1 118 KIRWIN 9550 3.2 3.7 86 3.4 3.7 92 MARQUETTE 8760 .1 3.3 3 1.5 3.8 39 SYLVAN LAKE 8420 5.3 5.6 95 7.7 6.1 126 SYLVAN ROAD 7120 3.1 2.7 115 5.5 5.7 96 YOUNTS PEAK 8350 4.5 4.0 113 4.0 4.5 89 ----- ----- Basin wide percent of average 91 99 POWDER-TONGUE BEAR TRAP MEADOW 8200 1.0 1.4 71 2.0 3.1 65 BIG GOOSE 7990 .6 2.0 30 2.3 2.8 82 BONE SPRINGS DIV 9350 4.6 4.8 96 3.4 4.5 76 BURGESS JUNCTION 7880 1.6 3.1 52 2.9 3.9 74 CLOUD PEAK RESERVOIR 9860 3.7 3.3 112 3.8 4.5 84 DOME LAKE 8880 1.2 3.7 32 3.4 4.5 76 GRAVE SPRINGS 8550 2.1 2.4 88 3.1 3.3 94 HANSEN SAWMILL 8360 .5 1.7 29 1.6 3.0 53 LITTLE GOOSE 8870 .9 -M * 4.1 -M * MIDDLE POWDER 7760 3.1 3.1 100 2.2 4.5 49 POWDER RIVER PASS 9480 3.7 2.8 132 4.1 3.7 111 SOLDIER PARK 8720 .5 -M * 2.1 -M * SUCKER CREEK 8880 2.4 2.8 86 2.8 4.1 68 TIE CREEK 6870 .9 1.1 82 2.3 3.5 66 ----- ----- Basin wide percent of average 79 75 BELLE FOURCHE BLIND PARK 6890 .8 1.7 47 6.1 4.2 145 COLE CANYON 5910 1.3 1.8 72 3.5 2.8 125 NORTH RAPID CREEK 6130 1.0 1.4 71 4.7 3.6 131 ----- ----- Basin wide percent of average 63 135 UPPER N. PLATTE RIVER COLUMBINE 9160 7.6 4.1 185 10.5 5.5 191 DIVIDE PEAK 8880 4.2 4.3 98 7.3 5.5 133 ELK RIVER 8700 4.3 2.5 172 7.5 4.6 163 JOE WRIGHT 10120 8.6 5.6 154 13.2 6.9 191 NORTH FRENCH CREEK 10130 10.5 6.9 152 11.3 6.7 169 OLD BATTLE 10000 9.5 7.8 122 11.2 8.0 140 SAGE CREEK BASIN 7850 2.3 2.5 92 5.7 3.2 178 SOUTH BRUSH CREEK 8440 4.5 2.4 188 7.2 4.7 153 TOWER 10500 15.1 10.8 140 16.9 9.2 184 WEBBER SPRINGS 9250 6.1 5.6 109 10.0 6.8 147 WILLOW CREEK PASS 9540 5.7 3.1 184 6.8 3.9 174 ----- ----- Basin wide percent of average 141 166 LOWER N. PLATTE - SWEETWATER - LARAMIE BROOKLYN LAKE 10240 6.0 5.1 118 8.1 5.5 147 CASPER MTN. 7900 2.2 4.1 54 5.3 4.8 110 DEADMAN HILL 10220 4.6 4.5 102 8.4 4.7 179 DEER PARK 9700 -M 4.1 * 6.2 6.3 98 LAPRELE CREEK 8375 2.0 2.8 71 3.7 3.8 97 RENO HILL 8400 3.2 3.7 86 4.9 4.6 107 ROACH 9700 5.6 3.7 151 7.8 4.7 166 SAND LAKE 10050 10.3 8.0 129 9.9 6.3 157 SOUTH PASS 9040 4.0 4.2 95 3.9 5.2 75 WINDY PEAK 7900 1.8 1.9 95 4.4 3.4 129 ----- ----- Basin wide percent of average 104 127 LITTLE SNAKE RIVER BATTLE MOUNTAIN 7440 2.3 1.6 144 5.0 3.9 128 DIVIDE PEAK 8880 4.2 4.3 98 7.3 5.5 133 OLD BATTLE 10000 9.5 7.8 122 11.2 8.0 140 SANDSTONE RS 8150 1.4 1.9 74 7.2 4.9 147 WHISKEY PARK 8950 4.7 5.2 90 10.6 6.7 158 ----- ----- Basin wide percent of average 106 142 UPPER GREEN RIVER BIG SANDY OPENING 9080 3.4 3.4 100 4.5 3.8 118 BLIND BULL SUM 8650 6.9 5.8 119 4.8 5.5 87 EAST RIM DIVIDE 7930 2.2 2.6 85 2.9 3.1 94 ELKHART PARK G.S. 9400 2.1 2.9 72 3.0 3.9 77 GROS VENTRE SUMMIT 8750 4.1 3.3 124 4.2 3.8 111 GUNSIGHT PASS 9820 4.2 -M * 4.8 -M * KENDALL R.S. 7740 1.6 2.6 62 3.8 3.6 106 LOOMIS PARK 8240 3.8 3.6 106 4.7 4.3 109 NEW FORK LAKE 8340 2.3 2.3 100 2.6 3.4 76 POCKET CREEK 9360 3.1 -M * 4.3 -M * SNIDER BASIN 8060 4.8 3.0 160 5.9 3.9 151 SPRING CREEK DIVIDE 9000 8.0 5.6 143 8.9 6.3 141 TRIPLE PEAK 8500 6.9 5.1 135 8.7 5.6 155 ----- ----- Basin wide percent of average 115 114 LOWER GREEN RIVER HAMS FORK 7840 3.0 2.0 150 4.5 3.1 145 HEWINTA 9519 .7 1.9 37 5.1 4.4 116 HICKERSON PARK 9145 .5 1.3 38 2.5 3.0 83 HOLE-IN-ROCK 9150 1.0 1.3 77 3.3 2.8 118 INDIAN CREEK 9425 7.9 5.5 144 7.9 6.0 132 KELLEY R.S. 8180 5.0 3.5 143 6.9 4.9 141 STEEL CREEK PARK 10200 3.1 3.5 89 6.5 4.6 141 ----- ----- Basin wide percent of average 112 127 UPPER BEAR RIVER BUG LAKE 7950 5.8 3.4 171 8.8 5.0 176 HAYDEN FORK 9212 4.0 2.5 160 9.7 5.4 180 KELLEY R.S. 8180 5.0 3.5 143 6.9 4.9 141 LILY LAKE 9156 3.8 2.5 152 7.5 5.0 150 MONTE CRISTO 8960 8.2 4.3 191 10.9 6.3 173 SALT RIVER SUMMIT 7760 3.3 2.0 165 6.4 4.3 149 TRIAL LAKE 9992 8.9 4.8 185 10.8 5.9 183 ----- ----- Basin wide percent of average 170 166 ----------------------------------------------------------------------------- -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 1971-2000. 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.