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 MONDAY: DECEMBER 6 , 2010 ----------------------------------------------------------------------------- BASIN ELEV. SNOW WATER EQUIVALENT TOTAL PRECIPITATION Data Site Name (Ft) % % Current Average Avg Current Average Avg ----------------------------------------------------------------------------- WYOMING SNAKE RIVER BASE CAMP 7030 6.6 4.8 138 9.1 6.9 132 COTTONWOOD CREEK 7670 9.7 5.5 176 13.6 8.9 153 GRAND TARGHEE 9260 17.5 -M * 13.1 -M * GRANITE CREEK 6770 5.8 4.1 141 8.4 6.1 138 GRASSY LAKE 7265 9.8 8.8 111 13.1 10.8 121 GROS VENTRE SUMMIT 8750 5.5 4.4 125 5.8 4.6 126 GUNSIGHT PASS 9820 5.7 -M * 6.1 -M * LEWIS LAKE DIVIDE 7850 11.0 8.9 124 13.5 11.2 121 PHILLIPS BENCH 8200 10.6 7.4 143 12.1 8.4 144 SALT RIVER SUMMIT 7760 4.6 3.1 148 8.0 5.6 143 SNAKE RIVER STATION 6920 5.5 4.7 117 10.1 7.2 140 SPRING CREEK DIVIDE 9000 10.2 7.9 129 11.3 8.2 138 THUMB DIVIDE 7980 7.0 4.6 152 8.0 6.0 133 TOGWOTEE PASS 9580 10.3 7.8 132 11.2 8.1 138 TWO OCEAN PLATEAU 9240 13.3 9.2 145 10.9 9.1 120 WILLOW CREEK 8380 10.0 8.8 114 15.0 10.4 144 ----- ----- Basin wide percent of average 133 135 UPPER YELLOWSTONE-MADISON BEARTOOTH LAKE 9360 8.4 7.8 108 8.4 6.6 127 BLACK BEAR 8170 13.3 11.0 121 15.1 11.7 129 CANYON 7870 5.4 3.8 142 6.8 5.3 128 FISHER CREEK 9100 11.8 10.7 110 12.7 11.0 115 MADISON PLATEAU 7750 8.3 7.1 117 10.4 8.2 127 NORTHEAST ENTRANCE 7350 3.2 3.0 107 5.4 4.4 123 PARKER PEAK 9400 9.5 7.4 128 10.3 6.0 172 SYLVAN LAKE 8420 7.0 7.2 97 9.6 7.8 123 THUMB DIVIDE 7980 7.0 4.6 152 8.0 6.0 133 TWO OCEAN PLATEAU 9240 13.3 9.2 145 10.9 9.1 120 WHISKEY CREEK 6800 5.0 4.5 111 7.9 6.6 120 WHITE MILL 8700 8.4 7.5 112 9.6 8.6 112 WOLVERINE 7650 4.5 3.4 132 5.3 5.0 106 ----- ----- Basin wide percent of average 121 125 WIND RIVER BURROUGHS CREEK 8750 4.8 4.5 107 5.3 5.4 98 CASTLE CREEK 8400 2.1 -M * 2.8 -M * COLD SPRINGS 9630 3.1 3.4 91 3.3 4.5 73 DEER PARK 9700 8.0 4.8 167 8.7 7.7 113 HOBBS PARK 10100 6.2 5.8 107 5.5 4.9 112 LITTLE WARM 9370 4.1 3.8 108 4.2 5.0 84 SOUTH PASS 9040 6.3 5.6 113 6.1 6.6 92 ST. LAWRENCE ALT 8620 1.9 2.8 68 2.8 3.7 76 TOGWOTEE PASS 9580 10.3 7.8 132 11.2 8.1 138 TOWNSEND CREEK 8700 3.5 3.1 113 5.3 4.8 110 ----- ----- Basin wide percent of average 116 103 BIGHORN BASIN BALD MTN. 9380 6.9 6.5 106 6.6 5.8 114 BEAR TRAP MEADOW 8200 1.6 1.9 84 2.9 3.6 81 BLACKWATER 9780 9.3 8.8 106 8.7 7.9 110 BONE SPRINGS DIV 9350 5.2 5.7 91 4.3 5.3 81 EVENING STAR 9200 9.7 9.5 102 11.1 9.0 123 GRAVE SPRINGS 8550 2.7 2.8 96 3.3 3.8 87 KIRWIN 9550 4.9 4.5 109 5.3 4.4 120 MARQUETTE 8760 1.1 3.9 28 2.4 4.3 56 MIDDLE POWDER 7760 4.0 3.8 105 2.8 5.2 54 OWL CREEK 8975 1.6 2.0 80 2.0 2.3 87 POWDER RIVER PASS 9480 4.1 3.7 111 4.8 4.4 109 SHELL CREEK 9580 5.0 5.4 93 4.4 4.9 90 SYLVAN LAKE 8420 7.0 7.2 97 9.6 7.8 123 SYLVAN ROAD 7120 4.1 4.1 100 6.7 7.3 92 TIMBER CREEK 7950 1.5 2.5 60 2.1 3.1 68 YOUNTS PEAK 8350 6.3 5.4 117 5.9 5.7 104 ----- ----- Basin wide percent of average 97 98 SHOSHONE RIVER BLACKWATER 9780 9.3 8.8 106 8.7 7.9 110 EVENING STAR 9200 9.7 9.5 102 11.1 9.0 123 KIRWIN 9550 4.9 4.5 109 5.3 4.4 120 MARQUETTE 8760 1.1 3.9 28 2.4 4.3 56 SYLVAN LAKE 8420 7.0 7.2 97 9.6 7.8 123 SYLVAN ROAD 7120 4.1 4.1 100 6.7 7.3 92 YOUNTS PEAK 8350 6.3 5.4 117 5.9 5.7 104 ----- ----- Basin wide percent of average 98 107 POWDER-TONGUE BEAR TRAP MEADOW 8200 1.6 1.9 84 2.9 3.6 81 BIG GOOSE 7990 1.5 2.7 56 3.3 3.3 100 BONE SPRINGS DIV 9350 5.2 5.7 91 4.3 5.3 81 BURGESS JUNCTION 7880 2.4 3.7 65 3.8 4.5 84 CLOUD PEAK RESERVOIR 9860 4.7 4.1 115 5.6 5.2 108 DOME LAKE 8880 1.9 4.5 42 4.0 5.2 77 GRAVE SPRINGS 8550 2.7 2.8 96 3.3 3.8 87 HANSEN SAWMILL 8360 1.4 2.2 64 2.0 3.4 59 LITTLE GOOSE 8870 2.1 -M * 5.6 -M * MIDDLE POWDER 7760 4.0 3.8 105 2.8 5.2 54 POWDER RIVER PASS 9480 4.1 3.7 111 4.8 4.4 109 SOLDIER PARK 8720 1.0 -M * 2.6 -M * SUCKER CREEK 8880 3.4 3.5 97 3.8 4.8 79 TIE CREEK 6870 1.4 1.2 117 2.9 3.9 74 ----- ----- Basin wide percent of average 86 83 BELLE FOURCHE BLIND PARK 6890 1.4 2.2 64 6.7 4.7 143 COLE CANYON 5910 2.1 2.2 95 4.2 3.1 135 NORTH RAPID CREEK 6130 2.0 1.9 105 5.8 4.0 145 ----- ----- Basin wide percent of average 87 142 UPPER N. PLATTE RIVER COLUMBINE 9160 8.9 5.7 156 12.3 7.2 171 DIVIDE PEAK 8880 6.4 5.7 112 9.9 6.8 146 ELK RIVER 8700 -M 3.7 * -M 5.8 * JOE WRIGHT 10120 10.0 6.8 147 14.7 8.4 175 NORTH FRENCH CREEK 10130 14.3 8.7 164 15.0 8.2 183 OLD BATTLE 10000 12.5 10.1 124 14.5 10.4 139 SAGE CREEK BASIN 7850 3.7 3.3 112 6.8 4.0 170 SOUTH BRUSH CREEK 8440 6.0 3.2 188 9.3 5.6 166 TOWER 10500 16.9 14.0 121 19.4 11.8 164 WEBBER SPRINGS 9250 8.1 7.5 108 12.2 8.6 142 WILLOW CREEK PASS 9540 6.0 3.9 154 7.3 4.7 155 ----- ----- Basin wide percent of average 135 160 LOWER N. PLATTE - SWEETWATER - LARAMIE BROOKLYN LAKE 10240 8.9 6.7 133 10.6 6.9 154 CASPER MTN. 7900 3.2 5.0 64 5.9 5.6 105 DEADMAN HILL 10220 5.6 5.5 102 9.9 5.7 174 DEER PARK 9700 8.0 4.8 167 8.7 7.7 113 LAPRELE CREEK 8375 2.9 3.5 83 4.4 4.6 96 RENO HILL 8400 4.4 4.7 94 6.3 5.5 115 ROACH 9700 6.5 4.8 135 9.1 5.8 157 SAND LAKE 10050 13.0 10.2 127 12.7 7.9 161 SOUTH PASS 9040 6.3 5.6 113 6.1 6.6 92 WINDY PEAK 7900 2.3 2.5 92 4.7 4.0 118 ----- ----- Basin wide percent of average 115 130 LITTLE SNAKE RIVER BATTLE MOUNTAIN 7440 3.0 2.1 143 5.4 4.8 113 DIVIDE PEAK 8880 6.4 5.7 112 9.9 6.8 146 OLD BATTLE 10000 12.5 10.1 124 14.5 10.4 139 SANDSTONE RS 8150 2.5 2.8 89 8.4 6.0 140 WHISKEY PARK 8950 5.7 6.9 83 12.4 8.8 141 ----- ----- Basin wide percent of average 109 138 UPPER GREEN RIVER BIG SANDY OPENING 9080 4.6 4.5 102 5.4 4.7 115 BLIND BULL SUM 8650 8.7 8.1 107 6.4 7.2 89 EAST RIM DIVIDE 7930 3.4 3.7 92 4.0 3.9 103 ELKHART PARK G.S. 9400 3.2 4.0 80 4.0 4.8 83 GROS VENTRE SUMMIT 8750 5.5 4.4 125 5.8 4.6 126 GUNSIGHT PASS 9820 5.7 -M * 6.1 -M * KENDALL R.S. 7740 3.1 3.8 82 4.9 4.5 109 LOOMIS PARK 8240 5.4 5.0 108 6.3 5.5 115 NEW FORK LAKE 8340 3.3 3.2 103 3.5 4.1 85 POCKET CREEK 9360 3.8 -M * 4.9 -M * SNIDER BASIN 8060 6.1 4.2 145 7.2 5.0 144 SPRING CREEK DIVIDE 9000 10.2 7.9 129 11.3 8.2 138 TRIPLE PEAK 8500 8.9 7.3 122 11.1 7.3 152 ----- ----- Basin wide percent of average 111 117 LOWER GREEN RIVER HAMS FORK 7840 3.9 3.0 130 5.3 3.9 136 HEWINTA 9519 1.6 2.4 67 5.7 5.3 108 HICKERSON PARK 9145 1.1 1.7 65 3.1 3.4 91 HOLE-IN-ROCK 9150 1.3 1.7 76 3.6 3.1 116 INDIAN CREEK 9425 10.4 7.6 137 10.3 7.8 132 KELLEY R.S. 8180 6.6 4.8 138 8.9 6.4 139 STEEL CREEK PARK 10200 3.8 4.4 86 7.0 5.6 125 ----- ----- Basin wide percent of average 112 124 UPPER BEAR RIVER BUG LAKE 7950 7.1 4.7 151 10.1 6.3 160 HAYDEN FORK 9212 4.4 3.5 126 10.6 6.8 156 KELLEY R.S. 8180 6.6 4.8 138 8.9 6.4 139 LILY LAKE 9156 4.6 3.3 139 8.1 6.2 131 MONTE CRISTO 8960 9.7 6.0 162 12.5 8.1 154 SALT RIVER SUMMIT 7760 4.6 3.1 148 8.0 5.6 143 TRIAL LAKE 9992 9.8 6.4 153 11.9 7.4 161 ----- ----- Basin wide percent of average 147 150 ----------------------------------------------------------------------------- -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.