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 FRIDAY: DECEMBER 10 , 2010 ----------------------------------------------------------------------------- BASIN ELEV. SNOW WATER EQUIVALENT TOTAL PRECIPITATION Data Site Name (Ft) % % Current Average Avg Current Average Avg ----------------------------------------------------------------------------- WYOMING SNAKE RIVER BASE CAMP 7030 7.1 5.3 134 9.7 7.4 131 COTTONWOOD CREEK 7670 10.3 6.1 169 14.3 9.6 149 GRAND TARGHEE 9260 18.2 -M * 13.7 -M * GRANITE CREEK 6770 6.4 4.6 139 8.9 6.6 135 GRASSY LAKE 7265 10.8 9.7 111 14.1 11.8 119 GROS VENTRE SUMMIT 8750 6.0 4.8 125 6.2 4.9 127 GUNSIGHT PASS 9820 6.3 -M * 6.7 -M * LEWIS LAKE DIVIDE 7850 12.3 9.8 126 14.6 12.2 120 PHILLIPS BENCH 8200 11.5 8.3 139 13.0 9.2 141 SALT RIVER SUMMIT 7760 5.0 3.4 147 8.6 6.1 141 SNAKE RIVER STATION 6920 5.8 5.2 112 10.6 7.9 134 SPRING CREEK DIVIDE 9000 11.0 8.6 128 12.1 9.0 134 THUMB DIVIDE 7980 7.4 5.1 145 8.4 6.5 129 TOGWOTEE PASS 9580 11.1 8.4 132 12.0 8.7 138 TWO OCEAN PLATEAU 9240 14.2 9.9 143 11.4 9.9 115 WILLOW CREEK 8380 10.6 9.6 110 15.7 11.2 140 ----- ----- Basin wide percent of average 131 132 UPPER YELLOWSTONE-MADISON BEARTOOTH LAKE 9360 8.9 8.4 106 8.9 7.2 124 BLACK BEAR 8170 14.6 12.0 122 16.2 12.6 129 CANYON 7870 5.7 4.1 139 7.2 5.7 126 FISHER CREEK 9100 12.2 11.6 105 13.1 12.0 109 MADISON PLATEAU 7750 9.0 7.8 115 11.1 9.0 123 NORTHEAST ENTRANCE 7350 3.4 3.3 103 5.7 4.8 119 PARKER PEAK 9400 9.9 7.9 125 10.6 6.4 166 SYLVAN LAKE 8420 7.7 7.7 100 10.3 8.4 123 THUMB DIVIDE 7980 7.4 5.1 145 8.4 6.5 129 TWO OCEAN PLATEAU 9240 14.2 9.9 143 11.4 9.9 115 WHISKEY CREEK 6800 5.6 4.9 114 8.3 7.1 117 WHITE MILL 8700 8.9 8.1 110 10.2 9.4 109 WOLVERINE 7650 4.7 3.9 121 5.4 5.3 102 ----- ----- Basin wide percent of average 118 122 WIND RIVER BURROUGHS CREEK 8750 -M 4.9 * 5.5 5.8 95 CASTLE CREEK 8400 2.3 -M * 3.1 -M * COLD SPRINGS 9630 3.3 3.7 89 3.3 4.7 70 DEER PARK 9700 8.1 5.1 159 8.9 8.2 109 HOBBS PARK 10100 6.3 6.2 102 5.6 5.2 108 LITTLE WARM 9370 4.4 4.1 107 4.5 5.3 85 SOUTH PASS 9040 6.4 6.1 105 6.3 7.1 89 ST. LAWRENCE ALT 8620 2.1 3.1 68 2.9 3.9 74 TOGWOTEE PASS 9580 11.1 8.4 132 12.0 8.7 138 TOWNSEND CREEK 8700 3.6 3.4 106 5.4 5.0 108 ----- ----- Basin wide percent of average 113 101 BIGHORN BASIN BALD MTN. 9380 7.0 6.9 101 6.4 6.2 103 BEAR TRAP MEADOW 8200 1.7 2.0 85 3.0 3.8 79 BLACKWATER 9780 10.2 9.4 109 9.7 8.5 114 BONE SPRINGS DIV 9350 5.2 6.0 87 4.4 5.6 79 EVENING STAR 9200 10.8 10.4 104 12.5 9.6 130 GRAVE SPRINGS 8550 2.7 2.9 93 3.3 4.0 83 KIRWIN 9550 5.3 4.8 110 5.7 4.7 121 MARQUETTE 8760 1.3 4.2 31 2.3 4.5 51 MIDDLE POWDER 7760 4.0 4.0 100 2.8 5.5 51 OWL CREEK 8975 1.6 2.1 76 2.1 2.4 88 POWDER RIVER PASS 9480 4.0 3.9 103 4.8 4.7 102 SHELL CREEK 9580 5.0 5.6 89 4.4 5.2 85 SYLVAN LAKE 8420 7.7 7.7 100 10.3 8.4 123 SYLVAN ROAD 7120 4.5 4.4 102 7.2 7.9 91 TIMBER CREEK 7950 1.6 2.5 64 2.2 3.3 67 YOUNTS PEAK 8350 6.8 5.8 117 6.3 6.0 105 ----- ----- Basin wide percent of average 96 97 SHOSHONE RIVER BLACKWATER 9780 10.2 9.4 109 9.7 8.5 114 EVENING STAR 9200 10.8 10.4 104 12.5 9.6 130 KIRWIN 9550 5.3 4.8 110 5.7 4.7 121 MARQUETTE 8760 1.3 4.2 31 2.3 4.5 51 SYLVAN LAKE 8420 7.7 7.7 100 10.3 8.4 123 SYLVAN ROAD 7120 4.5 4.4 102 7.2 7.9 91 YOUNTS PEAK 8350 6.8 5.8 117 6.3 6.0 105 ----- ----- Basin wide percent of average 100 109 POWDER-TONGUE BEAR TRAP MEADOW 8200 1.7 2.0 85 3.0 3.8 79 BIG GOOSE 7990 1.6 2.9 55 3.3 3.5 94 BONE SPRINGS DIV 9350 5.2 6.0 87 4.4 5.6 79 BURGESS JUNCTION 7880 2.5 3.9 64 4.0 4.8 83 CLOUD PEAK RESERVOIR 9860 5.0 4.3 116 5.6 5.4 104 DOME LAKE 8880 2.1 4.7 45 4.2 5.5 76 GRAVE SPRINGS 8550 2.7 2.9 93 3.3 4.0 83 HANSEN SAWMILL 8360 1.5 2.4 63 2.1 3.5 60 LITTLE GOOSE 8870 2.1 -M * 5.7 -M * MIDDLE POWDER 7760 4.0 4.0 100 2.8 5.5 51 POWDER RIVER PASS 9480 4.0 3.9 103 4.8 4.7 102 SOLDIER PARK 8720 1.2 -M * 2.8 -M * SUCKER CREEK 8880 3.5 3.7 95 3.9 5.1 76 TIE CREEK 6870 1.6 1.3 123 3.2 4.1 78 ----- ----- Basin wide percent of average 84 80 BELLE FOURCHE BLIND PARK 6890 1.4 2.2 64 6.7 5.0 134 COLE CANYON 5910 2.2 2.4 92 4.2 3.3 127 NORTH RAPID CREEK 6130 2.0 2.1 95 5.8 4.2 138 ----- ----- Basin wide percent of average 84 134 UPPER N. PLATTE RIVER COLUMBINE 9160 9.5 6.3 151 13.0 7.9 165 DIVIDE PEAK 8880 6.8 6.2 110 10.4 7.3 142 ELK RIVER 8700 5.6 4.1 137 9.1 6.3 144 JOE WRIGHT 10120 10.8 7.2 150 15.4 9.0 171 NORTH FRENCH CREEK 10130 14.9 9.4 159 15.4 8.8 175 OLD BATTLE 10000 13.4 10.8 124 15.3 11.3 135 SAGE CREEK BASIN 7850 4.0 3.6 111 7.1 4.3 165 SOUTH BRUSH CREEK 8440 6.4 3.5 183 9.7 5.9 164 TOWER 10500 18.2 15.1 121 20.3 12.8 159 WEBBER SPRINGS 9250 8.6 8.1 106 12.8 9.3 138 WILLOW CREEK PASS 9540 6.6 4.2 157 7.6 5.0 152 ----- ----- Basin wide percent of average 134 155 LOWER N. PLATTE - SWEETWATER - LARAMIE BROOKLYN LAKE 10240 9.3 7.3 127 10.9 7.3 149 CASPER MTN. 7900 3.5 5.4 65 6.2 5.9 105 DEADMAN HILL 10220 5.4 5.8 93 10.2 6.1 167 DEER PARK 9700 8.1 5.1 159 8.9 8.2 109 LAPRELE CREEK 8375 3.2 3.8 84 4.7 4.8 98 RENO HILL 8400 4.6 5.0 92 6.5 5.7 114 ROACH 9700 6.7 5.2 129 9.3 6.2 150 SAND LAKE 10050 13.5 11.0 123 13.2 8.5 155 SOUTH PASS 9040 6.4 6.1 105 6.3 7.1 89 WINDY PEAK 7900 2.6 2.7 96 4.9 4.3 114 ----- ----- Basin wide percent of average 110 127 LITTLE SNAKE RIVER BATTLE MOUNTAIN 7440 3.2 2.3 139 5.7 5.2 110 DIVIDE PEAK 8880 6.8 6.2 110 10.4 7.3 142 OLD BATTLE 10000 13.4 10.8 124 15.3 11.3 135 SANDSTONE RS 8150 2.8 3.1 90 8.9 6.4 139 WHISKEY PARK 8950 5.4 7.5 72 13.3 9.4 141 ----- ----- Basin wide percent of average 106 135 UPPER GREEN RIVER BIG SANDY OPENING 9080 5.0 4.9 102 5.9 5.0 118 BLIND BULL SUM 8650 9.4 8.9 106 6.9 7.9 87 EAST RIM DIVIDE 7930 3.8 4.0 95 4.3 4.1 105 ELKHART PARK G.S. 9400 3.7 4.3 86 4.5 5.1 88 GROS VENTRE SUMMIT 8750 6.0 4.8 125 6.2 4.9 127 GUNSIGHT PASS 9820 6.3 -M * 6.7 -M * KENDALL R.S. 7740 3.6 4.2 86 5.4 4.8 113 LOOMIS PARK 8240 5.9 5.5 107 6.8 5.9 115 NEW FORK LAKE 8340 3.8 3.6 106 3.9 4.4 89 POCKET CREEK 9360 4.3 -M * 5.4 -M * SNIDER BASIN 8060 6.6 4.6 143 7.6 5.5 138 SPRING CREEK DIVIDE 9000 11.0 8.6 128 12.1 9.0 134 TRIPLE PEAK 8500 9.8 8.0 123 12.0 7.9 152 ----- ----- Basin wide percent of average 112 117 LOWER GREEN RIVER HAMS FORK 7840 4.3 3.3 130 5.8 4.2 138 HEWINTA 9519 2.4 2.6 92 6.3 5.6 113 HICKERSON PARK 9145 1.3 1.9 68 3.3 3.5 94 HOLE-IN-ROCK 9150 1.5 1.8 83 3.7 3.3 112 INDIAN CREEK 9425 11.1 8.4 132 11.0 8.5 129 KELLEY R.S. 8180 7.0 5.3 132 9.6 6.9 139 STEEL CREEK PARK 10200 4.3 4.8 90 7.4 5.9 125 ----- ----- Basin wide percent of average 114 124 UPPER BEAR RIVER BUG LAKE 7950 7.8 5.2 150 10.8 6.8 159 HAYDEN FORK 9212 5.0 3.9 128 11.4 7.3 156 KELLEY R.S. 8180 7.0 5.3 132 9.6 6.9 139 LILY LAKE 9156 5.5 3.6 153 8.6 6.6 130 MONTE CRISTO 8960 10.7 6.7 160 13.4 8.8 152 SALT RIVER SUMMIT 7760 5.0 3.4 147 8.6 6.1 141 TRIAL LAKE 9992 10.4 7.0 149 12.6 8.0 158 ----- ----- Basin wide percent of average 146 149 ----------------------------------------------------------------------------- -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.