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 TUESDAY: DECEMBER 14 , 2010 ----------------------------------------------------------------------------- BASIN ELEV. SNOW WATER EQUIVALENT TOTAL PRECIPITATION Data Site Name (Ft) % % Current Average Avg Current Average Avg ----------------------------------------------------------------------------- WYOMING SNAKE RIVER BASE CAMP 7030 7.8 5.8 134 10.3 8.0 129 COTTONWOOD CREEK 7670 11.3 6.8 166 15.4 10.3 150 GRAND TARGHEE 9260 19.5 -M * 14.5 -M * GRANITE CREEK 6770 7.2 5.1 141 9.6 7.2 133 GRASSY LAKE 7265 11.8 10.6 111 15.2 12.8 119 GROS VENTRE SUMMIT 8750 6.5 5.2 125 6.8 5.2 131 GUNSIGHT PASS 9820 7.0 -M * 7.4 -M * LEWIS LAKE DIVIDE 7850 13.4 10.6 126 15.6 13.1 119 PHILLIPS BENCH 8200 12.2 9.1 134 13.8 10.0 138 SALT RIVER SUMMIT 7760 5.7 3.8 150 9.3 6.6 141 SNAKE RIVER STATION 6920 6.2 5.7 109 11.3 8.4 135 SPRING CREEK DIVIDE 9000 12.2 9.4 130 13.2 9.7 136 THUMB DIVIDE 7980 8.1 5.5 147 9.0 6.9 130 TOGWOTEE PASS 9580 12.2 9.0 136 13.1 9.3 141 TWO OCEAN PLATEAU 9240 15.5 10.5 148 13.0 10.5 124 WILLOW CREEK 8380 11.7 10.5 111 16.8 12.0 140 ----- ----- Basin wide percent of average 132 133 UPPER YELLOWSTONE-MADISON BEARTOOTH LAKE 9360 10.0 8.9 112 10.0 7.7 130 BLACK BEAR 8170 16.0 13.1 122 17.5 13.5 130 CANYON 7870 6.2 4.5 138 7.7 6.0 128 FISHER CREEK 9100 13.9 12.5 111 14.6 12.9 113 MADISON PLATEAU 7750 10.0 8.5 118 12.1 9.6 126 NORTHEAST ENTRANCE 7350 4.1 3.6 114 6.5 5.1 127 PARKER PEAK 9400 11.2 8.4 133 11.8 6.7 176 SYLVAN LAKE 8420 8.7 8.2 106 11.4 8.9 128 THUMB DIVIDE 7980 8.1 5.5 147 9.0 6.9 130 TWO OCEAN PLATEAU 9240 15.5 10.5 148 13.0 10.5 124 WHISKEY CREEK 6800 6.5 5.5 118 9.1 7.6 120 WHITE MILL 8700 10.2 8.7 117 11.4 10.0 114 WOLVERINE 7650 5.7 4.1 139 6.1 5.7 107 ----- ----- Basin wide percent of average 124 126 WIND RIVER BURROUGHS CREEK 8750 -M 5.2 * 6.2 6.2 100 CASTLE CREEK 8400 2.5 -M * 3.3 -M * COLD SPRINGS 9630 3.6 3.9 92 3.7 4.9 76 DEER PARK 9700 8.7 5.6 155 9.7 8.7 111 HOBBS PARK 10100 6.5 6.5 100 6.1 5.4 113 LITTLE WARM 9370 4.8 4.3 112 5.0 5.5 91 SOUTH PASS 9040 7.1 6.7 106 6.7 7.5 89 ST. LAWRENCE ALT 8620 2.3 3.2 72 3.1 4.0 78 TOGWOTEE PASS 9580 12.2 9.0 136 13.1 9.3 141 TOWNSEND CREEK 8700 3.7 3.6 103 5.6 5.2 108 ----- ----- Basin wide percent of average 114 104 BIGHORN BASIN BALD MTN. 9380 8.6 7.5 115 7.4 6.6 112 BEAR TRAP MEADOW 8200 2.1 2.1 100 3.3 3.9 85 BLACKWATER 9780 11.3 9.9 114 10.9 9.0 121 BONE SPRINGS DIV 9350 5.9 6.3 94 4.9 5.9 83 EVENING STAR 9200 12.4 11.0 113 14.0 10.3 136 GRAVE SPRINGS 8550 2.9 3.1 94 3.4 4.1 83 KIRWIN 9550 5.6 5.0 112 6.2 4.9 127 MARQUETTE 8760 1.3 4.3 30 3.1 4.7 66 MIDDLE POWDER 7760 4.4 4.4 100 3.0 5.7 53 OWL CREEK 8975 1.8 2.2 82 2.3 2.5 92 POWDER RIVER PASS 9480 4.8 4.1 117 5.8 4.9 118 SHELL CREEK 9580 6.0 6.0 100 5.1 5.5 93 SYLVAN LAKE 8420 8.7 8.2 106 11.4 8.9 128 SYLVAN ROAD 7120 5.5 4.8 115 8.2 8.3 99 TIMBER CREEK 7950 1.8 2.6 69 2.3 3.4 68 YOUNTS PEAK 8350 7.4 6.1 121 6.8 6.4 106 ----- ----- Basin wide percent of average 103 103 SHOSHONE RIVER BLACKWATER 9780 11.3 9.9 114 10.9 9.0 121 EVENING STAR 9200 12.4 11.0 113 14.0 10.3 136 KIRWIN 9550 5.6 5.0 112 6.2 4.9 127 MARQUETTE 8760 1.3 4.3 30 3.1 4.7 66 SYLVAN LAKE 8420 8.7 8.2 106 11.4 8.9 128 SYLVAN ROAD 7120 5.5 4.8 115 8.2 8.3 99 YOUNTS PEAK 8350 7.4 6.1 121 6.8 6.4 106 ----- ----- Basin wide percent of average 106 115 POWDER-TONGUE BEAR TRAP MEADOW 8200 2.1 2.1 100 3.3 3.9 85 BIG GOOSE 7990 2.2 3.2 69 3.8 3.8 100 BONE SPRINGS DIV 9350 5.9 6.3 94 4.9 5.9 83 BURGESS JUNCTION 7880 3.0 4.2 71 4.4 5.0 88 CLOUD PEAK RESERVOIR 9860 5.6 4.5 124 6.1 5.5 111 DOME LAKE 8880 2.7 4.9 55 4.7 5.8 81 GRAVE SPRINGS 8550 2.9 3.1 94 3.4 4.1 83 HANSEN SAWMILL 8360 2.0 2.6 77 2.5 3.7 68 LITTLE GOOSE 8870 2.7 -M * 6.4 -M * MIDDLE POWDER 7760 4.4 4.4 100 3.0 5.7 53 POWDER RIVER PASS 9480 4.8 4.1 117 5.8 4.9 118 SOLDIER PARK 8720 1.6 -M * 3.2 -M * SUCKER CREEK 8880 4.3 4.0 108 4.5 5.4 83 TIE CREEK 6870 1.9 1.5 127 3.6 4.3 84 ----- ----- Basin wide percent of average 93 86 BELLE FOURCHE BLIND PARK 6890 1.9 2.4 79 7.2 5.2 138 COLE CANYON 5910 2.5 2.6 96 4.5 3.4 132 NORTH RAPID CREEK 6130 2.5 2.4 104 6.3 4.4 143 ----- ----- Basin wide percent of average 93 138 UPPER N. PLATTE RIVER COLUMBINE 9160 11.0 6.9 159 14.4 8.5 169 DIVIDE PEAK 8880 7.0 6.7 104 10.6 7.8 136 ELK RIVER 8700 6.1 4.7 130 9.6 6.7 143 JOE WRIGHT 10120 11.0 7.6 145 15.8 9.5 166 NORTH FRENCH CREEK 10130 15.4 10.2 151 15.9 9.4 169 OLD BATTLE 10000 14.3 11.6 123 16.2 12.1 134 SAGE CREEK BASIN 7850 4.2 3.9 108 7.3 4.6 159 SOUTH BRUSH CREEK 8440 6.5 3.8 171 9.9 6.3 157 TOWER 10500 19.5 16.1 121 21.7 13.7 158 WEBBER SPRINGS 9250 9.2 8.8 105 13.5 10.0 135 WILLOW CREEK PASS 9540 6.7 4.5 149 7.9 5.3 149 ----- ----- Basin wide percent of average 131 152 LOWER N. PLATTE - SWEETWATER - LARAMIE BROOKLYN LAKE 10240 9.9 7.9 125 11.5 7.9 146 CASPER MTN. 7900 3.5 5.7 61 6.2 6.2 100 DEADMAN HILL 10220 7.0 6.1 115 10.6 6.4 166 DEER PARK 9700 8.7 5.6 155 9.7 8.7 111 LAPRELE CREEK 8375 3.3 4.1 80 4.8 5.0 96 RENO HILL 8400 4.7 5.3 89 6.6 6.0 110 ROACH 9700 7.1 5.5 129 9.7 6.6 147 SAND LAKE 10050 14.0 11.7 120 13.7 9.0 152 SOUTH PASS 9040 7.1 6.7 106 6.7 7.5 89 WINDY PEAK 7900 2.7 2.9 93 5.1 4.5 113 ----- ----- Basin wide percent of average 111 125 LITTLE SNAKE RIVER BATTLE MOUNTAIN 7440 3.3 2.6 127 5.8 5.5 105 DIVIDE PEAK 8880 7.0 6.7 104 10.6 7.8 136 OLD BATTLE 10000 14.3 11.6 123 16.2 12.1 134 SANDSTONE RS 8150 3.0 3.4 88 9.2 6.9 133 WHISKEY PARK 8950 -M 8.0 * 14.2 10.1 141 ----- ----- Basin wide percent of average 114 132 UPPER GREEN RIVER BIG SANDY OPENING 9080 5.6 5.3 106 6.4 5.3 121 BLIND BULL SUM 8650 10.6 9.7 109 7.7 8.5 91 EAST RIM DIVIDE 7930 4.3 4.4 98 4.8 4.4 109 ELKHART PARK G.S. 9400 4.5 4.7 96 5.1 5.4 94 GROS VENTRE SUMMIT 8750 6.5 5.2 125 6.8 5.2 131 GUNSIGHT PASS 9820 7.0 -M * 7.4 -M * KENDALL R.S. 7740 4.2 4.6 91 6.0 5.2 115 LOOMIS PARK 8240 6.7 6.0 112 7.6 6.4 119 NEW FORK LAKE 8340 4.3 3.9 110 4.4 4.7 94 POCKET CREEK 9360 4.7 -M * 5.8 -M * SNIDER BASIN 8060 7.4 5.1 145 8.2 5.9 139 SPRING CREEK DIVIDE 9000 12.2 9.4 130 13.2 9.7 136 TRIPLE PEAK 8500 10.9 8.7 125 13.0 8.5 153 ----- ----- Basin wide percent of average 115 120 LOWER GREEN RIVER HAMS FORK 7840 4.7 3.7 127 6.0 4.5 133 HEWINTA 9519 2.9 2.9 100 6.8 5.9 115 HICKERSON PARK 9145 1.5 2.0 75 3.5 3.7 95 HOLE-IN-ROCK 9150 1.6 1.9 84 3.9 3.4 115 INDIAN CREEK 9425 12.1 9.2 132 11.8 9.2 128 KELLEY R.S. 8180 7.6 5.7 133 10.2 7.5 136 STEEL CREEK PARK 10200 5.0 5.1 98 8.0 6.2 129 ----- ----- Basin wide percent of average 116 124 UPPER BEAR RIVER BUG LAKE 7950 8.7 5.7 153 11.5 7.2 160 HAYDEN FORK 9212 5.5 4.3 128 12.1 7.8 155 KELLEY R.S. 8180 7.6 5.7 133 10.2 7.5 136 LILY LAKE 9156 6.2 4.0 155 9.2 7.0 131 MONTE CRISTO 8960 11.3 7.4 153 14.1 9.4 150 SALT RIVER SUMMIT 7760 5.7 3.8 150 9.3 6.6 141 TRIAL LAKE 9992 11.3 7.6 149 13.4 8.6 156 ----- ----- Basin wide percent of average 146 148 ----------------------------------------------------------------------------- -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.