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 SATURDAY: DECEMBER 4 , 2010 ----------------------------------------------------------------------------- BASIN ELEV. SNOW WATER EQUIVALENT TOTAL PRECIPITATION Data Site Name (Ft) % % Current Average Avg Current Average Avg ----------------------------------------------------------------------------- WYOMING SNAKE RIVER BASE CAMP 7030 6.4 4.5 142 9.1 6.6 138 COTTONWOOD CREEK 7670 9.4 5.1 184 13.3 8.5 156 GRAND TARGHEE 9260 17.3 -M * 12.9 -M * GRANITE CREEK 6770 5.7 3.8 150 8.2 5.8 141 GRASSY LAKE 7265 9.7 8.3 117 13.0 10.4 125 GROS VENTRE SUMMIT 8750 5.5 4.2 131 5.5 4.5 122 GUNSIGHT PASS 9820 5.6 -M * 6.0 -M * LEWIS LAKE DIVIDE 7850 10.9 8.4 130 13.3 10.7 124 PHILLIPS BENCH 8200 10.5 7.0 150 11.8 8.0 148 SALT RIVER SUMMIT 7760 4.6 2.9 159 7.9 5.3 149 SNAKE RIVER STATION 6920 5.5 4.4 125 10.0 6.9 145 SPRING CREEK DIVIDE 9000 10.0 7.4 135 11.1 7.9 141 THUMB DIVIDE 7980 6.7 4.4 152 7.7 5.8 133 TOGWOTEE PASS 9580 10.2 7.5 136 11.1 7.8 142 TWO OCEAN PLATEAU 9240 13.3 8.8 151 10.5 8.8 119 WILLOW CREEK 8380 9.8 8.3 118 14.7 10.0 147 ----- ----- Basin wide percent of average 139 138 UPPER YELLOWSTONE-MADISON BEARTOOTH LAKE 9360 8.4 7.5 112 8.4 6.3 133 BLACK BEAR 8170 13.1 10.5 125 14.9 11.2 133 CANYON 7870 5.4 3.6 150 6.6 5.1 129 FISHER CREEK 9100 11.7 10.1 116 12.6 10.5 120 MADISON PLATEAU 7750 8.1 6.8 119 10.2 7.8 131 NORTHEAST ENTRANCE 7350 3.2 2.8 114 5.4 4.3 126 PARKER PEAK 9400 9.3 7.1 131 8.9 5.8 153 SYLVAN LAKE 8420 6.9 6.9 100 9.5 7.6 125 THUMB DIVIDE 7980 6.7 4.4 152 7.7 5.8 133 TWO OCEAN PLATEAU 9240 13.3 8.8 151 10.5 8.8 119 WHISKEY CREEK 6800 4.9 4.3 114 7.8 6.3 124 WHITE MILL 8700 8.4 7.1 118 9.4 8.3 113 WOLVERINE 7650 4.6 3.3 139 5.2 4.8 108 ----- ----- Basin wide percent of average 125 126 WIND RIVER BURROUGHS CREEK 8750 -M 4.2 * 5.1 5.2 98 CASTLE CREEK 8400 2.0 -M * 2.6 -M * COLD SPRINGS 9630 3.0 3.3 91 3.1 4.4 70 DEER PARK 9700 7.9 4.7 168 8.6 7.5 115 HOBBS PARK 10100 6.2 5.5 113 5.4 4.8 113 LITTLE WARM 9370 4.1 3.6 114 3.9 4.8 81 SOUTH PASS 9040 6.2 5.2 119 6.1 6.4 95 ST. LAWRENCE ALT 8620 1.9 2.8 68 2.8 3.6 78 TOGWOTEE PASS 9580 10.2 7.5 136 11.1 7.8 142 TOWNSEND CREEK 8700 3.5 3.1 113 5.3 4.7 113 ----- ----- Basin wide percent of average 120 104 BIGHORN BASIN BALD MTN. 9380 6.9 6.3 110 6.2 5.6 111 BEAR TRAP MEADOW 8200 1.6 1.8 89 2.9 3.5 83 BLACKWATER 9780 9.1 8.4 108 8.3 7.6 109 BONE SPRINGS DIV 9350 5.2 5.6 93 4.1 5.1 80 EVENING STAR 9200 9.7 9.2 105 11.0 8.7 126 GRAVE SPRINGS 8550 2.7 2.7 100 3.3 3.7 89 KIRWIN 9550 4.8 4.4 109 5.1 4.3 119 MARQUETTE 8760 1.1 3.9 28 2.4 4.2 57 MIDDLE POWDER 7760 4.0 3.8 105 2.7 5.1 53 OWL CREEK 8975 1.5 2.0 75 2.0 2.3 87 POWDER RIVER PASS 9480 4.0 3.6 111 4.8 4.3 112 SHELL CREEK 9580 5.0 5.3 94 4.4 4.7 94 SYLVAN LAKE 8420 6.9 6.9 100 9.5 7.6 125 SYLVAN ROAD 7120 4.1 3.9 105 6.7 7.0 96 TIMBER CREEK 7950 1.6 2.4 67 2.1 3.1 68 YOUNTS PEAK 8350 6.3 5.2 121 5.5 5.5 100 ----- ----- Basin wide percent of average 99 98 SHOSHONE RIVER BLACKWATER 9780 9.1 8.4 108 8.3 7.6 109 EVENING STAR 9200 9.7 9.2 105 11.0 8.7 126 KIRWIN 9550 4.8 4.4 109 5.1 4.3 119 MARQUETTE 8760 1.1 3.9 28 2.4 4.2 57 SYLVAN LAKE 8420 6.9 6.9 100 9.5 7.6 125 SYLVAN ROAD 7120 4.1 3.9 105 6.7 7.0 96 YOUNTS PEAK 8350 6.3 5.2 121 5.5 5.5 100 ----- ----- Basin wide percent of average 100 108 POWDER-TONGUE BEAR TRAP MEADOW 8200 1.6 1.8 89 2.9 3.5 83 BIG GOOSE 7990 1.4 2.5 56 3.0 3.2 94 BONE SPRINGS DIV 9350 5.2 5.6 93 4.1 5.1 80 BURGESS JUNCTION 7880 2.4 3.7 65 3.8 4.4 86 CLOUD PEAK RESERVOIR 9860 4.7 4.0 118 4.9 5.1 96 DOME LAKE 8880 2.0 4.4 45 4.0 5.1 78 GRAVE SPRINGS 8550 2.7 2.7 100 3.3 3.7 89 HANSEN SAWMILL 8360 1.4 2.2 64 2.0 3.3 61 LITTLE GOOSE 8870 2.1 -M * 5.5 -M * MIDDLE POWDER 7760 4.0 3.8 105 2.7 5.1 53 POWDER RIVER PASS 9480 4.0 3.6 111 4.8 4.3 112 SOLDIER PARK 8720 1.0 -M * 2.6 -M * SUCKER CREEK 8880 3.4 3.4 100 3.8 4.7 81 TIE CREEK 6870 1.5 1.2 125 3.0 3.8 79 ----- ----- Basin wide percent of average 88 82 BELLE FOURCHE BLIND PARK 6890 1.4 2.1 67 6.7 4.6 146 COLE CANYON 5910 2.2 2.2 100 4.2 3.1 135 NORTH RAPID CREEK 6130 2.0 1.8 111 5.7 3.9 146 ----- ----- Basin wide percent of average 92 143 UPPER N. PLATTE RIVER COLUMBINE 9160 8.8 5.4 163 12.2 6.9 177 DIVIDE PEAK 8880 5.5 5.4 102 9.0 6.6 136 ELK RIVER 8700 5.1 3.4 150 8.6 5.6 154 JOE WRIGHT 10120 9.6 6.6 145 14.3 8.2 174 NORTH FRENCH CREEK 10130 13.0 8.4 155 13.8 7.9 175 OLD BATTLE 10000 11.7 9.7 121 13.8 10.0 138 SAGE CREEK BASIN 7850 3.1 3.1 100 6.2 3.8 163 SOUTH BRUSH CREEK 8440 5.4 3.1 174 8.6 5.5 156 TOWER 10500 16.5 13.5 122 19.0 11.3 168 WEBBER SPRINGS 9250 7.8 7.1 110 11.9 8.3 143 WILLOW CREEK PASS 9540 6.1 3.8 161 7.2 4.6 157 ----- ----- Basin wide percent of average 133 158 LOWER N. PLATTE - SWEETWATER - LARAMIE BROOKLYN LAKE 10240 8.5 6.4 133 10.1 6.6 153 CASPER MTN. 7900 3.1 4.9 63 5.9 5.5 107 DEADMAN HILL 10220 5.5 5.3 104 9.7 5.5 176 DEER PARK 9700 7.9 4.7 168 8.6 7.5 115 LAPRELE CREEK 8375 2.8 3.4 82 4.3 4.5 96 RENO HILL 8400 4.3 4.5 96 6.2 5.3 117 ROACH 9700 6.3 4.6 137 8.9 5.5 162 SAND LAKE 10050 12.4 9.8 127 12.1 7.6 159 SOUTH PASS 9040 6.2 5.2 119 6.1 6.4 95 WINDY PEAK 7900 2.3 2.4 96 4.6 3.9 118 ----- ----- Basin wide percent of average 116 131 LITTLE SNAKE RIVER BATTLE MOUNTAIN 7440 2.7 2.0 135 5.3 4.6 115 DIVIDE PEAK 8880 5.5 5.4 102 9.0 6.6 136 OLD BATTLE 10000 11.7 9.7 121 13.8 10.0 138 SANDSTONE RS 8150 2.2 2.6 85 7.9 5.8 136 WHISKEY PARK 8950 5.4 6.6 82 11.8 8.4 140 ----- ----- Basin wide percent of average 105 135 UPPER GREEN RIVER BIG SANDY OPENING 9080 4.5 4.3 105 5.4 4.5 120 BLIND BULL SUM 8650 8.6 7.7 112 6.0 6.9 87 EAST RIM DIVIDE 7930 3.4 3.5 97 3.9 3.7 105 ELKHART PARK G.S. 9400 3.1 3.8 82 4.0 4.6 87 GROS VENTRE SUMMIT 8750 5.5 4.2 131 5.5 4.5 122 GUNSIGHT PASS 9820 5.6 -M * 6.0 -M * KENDALL R.S. 7740 2.9 3.5 83 4.9 4.3 114 LOOMIS PARK 8240 5.3 4.8 110 6.2 5.3 117 NEW FORK LAKE 8340 3.3 3.0 110 3.4 4.0 85 POCKET CREEK 9360 3.8 -M * 4.9 -M * SNIDER BASIN 8060 6.0 4.0 150 7.1 4.8 148 SPRING CREEK DIVIDE 9000 10.0 7.4 135 11.1 7.9 141 TRIPLE PEAK 8500 8.8 6.9 128 11.0 7.0 157 ----- ----- Basin wide percent of average 116 119 LOWER GREEN RIVER HAMS FORK 7840 3.8 2.8 136 5.3 3.8 139 HEWINTA 9519 1.5 2.3 65 5.8 5.2 112 HICKERSON PARK 9145 1.2 1.6 75 3.2 3.3 97 HOLE-IN-ROCK 9150 1.5 1.6 94 3.6 3.1 116 INDIAN CREEK 9425 10.0 7.2 139 9.9 7.5 132 KELLEY R.S. 8180 6.3 4.6 137 8.8 6.1 144 STEEL CREEK PARK 10200 3.8 4.2 90 6.9 5.4 128 ----- ----- Basin wide percent of average 116 126 UPPER BEAR RIVER BUG LAKE 7950 6.8 4.4 155 9.7 6.1 159 HAYDEN FORK 9212 4.4 3.3 133 10.5 6.5 162 KELLEY R.S. 8180 6.3 4.6 137 8.8 6.1 144 LILY LAKE 9156 4.5 3.1 145 8.1 6.0 135 MONTE CRISTO 8960 9.5 5.7 167 12.3 7.8 158 SALT RIVER SUMMIT 7760 4.6 2.9 159 7.9 5.3 149 TRIAL LAKE 9992 9.7 6.1 159 11.8 7.2 164 ----- ----- Basin wide percent of average 152 154 ----------------------------------------------------------------------------- -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.