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 SUNDAY: DECEMBER 5 , 2010 ----------------------------------------------------------------------------- BASIN ELEV. SNOW WATER EQUIVALENT TOTAL PRECIPITATION Data Site Name (Ft) % % Current Average Avg Current Average Avg ----------------------------------------------------------------------------- WYOMING SNAKE RIVER BASE CAMP 7030 6.5 4.6 141 9.1 6.7 136 COTTONWOOD CREEK 7670 9.6 5.3 181 13.5 8.7 155 GRAND TARGHEE 9260 17.5 -M * 13.1 -M * GRANITE CREEK 6770 5.8 4.0 145 8.3 5.9 141 GRASSY LAKE 7265 9.8 8.6 114 13.0 10.6 123 GROS VENTRE SUMMIT 8750 5.5 4.3 128 5.8 4.6 126 GUNSIGHT PASS 9820 5.7 -M * 6.1 -M * LEWIS LAKE DIVIDE 7850 11.0 8.6 128 13.5 10.9 124 PHILLIPS BENCH 8200 10.6 7.2 147 12.1 8.2 148 SALT RIVER SUMMIT 7760 4.8 3.0 160 8.2 5.5 149 SNAKE RIVER STATION 6920 5.5 4.6 120 10.1 7.1 142 SPRING CREEK DIVIDE 9000 10.2 7.6 134 11.4 8.0 143 THUMB DIVIDE 7980 6.9 4.5 153 7.9 5.9 134 TOGWOTEE PASS 9580 10.3 7.6 136 11.2 7.9 142 TWO OCEAN PLATEAU 9240 13.3 9.0 148 10.8 9.0 120 WILLOW CREEK 8380 10.0 8.5 118 15.0 10.2 147 ----- ----- Basin wide percent of average 137 137 UPPER YELLOWSTONE-MADISON BEARTOOTH LAKE 9360 8.4 7.7 109 8.4 6.5 129 BLACK BEAR 8170 13.2 10.8 122 15.1 11.4 132 CANYON 7870 5.4 3.7 146 6.7 5.2 129 FISHER CREEK 9100 11.7 10.4 113 12.7 10.8 118 MADISON PLATEAU 7750 8.2 7.0 117 10.4 8.0 130 NORTHEAST ENTRANCE 7350 3.2 2.9 110 5.4 4.4 123 PARKER PEAK 9400 9.4 7.3 129 9.0 5.9 153 SYLVAN LAKE 8420 7.0 7.1 99 9.6 7.7 125 THUMB DIVIDE 7980 6.9 4.5 153 7.9 5.9 134 TWO OCEAN PLATEAU 9240 13.3 9.0 148 10.8 9.0 120 WHISKEY CREEK 6800 5.0 4.4 114 7.9 6.4 123 WHITE MILL 8700 8.5 7.3 116 9.5 8.5 112 WOLVERINE 7650 4.5 3.4 132 5.2 4.9 106 ----- ----- Basin wide percent of average 122 125 WIND RIVER BURROUGHS CREEK 8750 -M 4.5 * 5.3 5.3 100 CASTLE CREEK 8400 2.1 -M * 2.8 -M * COLD SPRINGS 9630 3.1 3.3 94 3.3 4.4 75 DEER PARK 9700 8.0 4.7 170 8.7 7.6 114 HOBBS PARK 10100 6.2 5.7 109 5.5 4.9 112 LITTLE WARM 9370 4.1 3.8 108 4.2 4.9 86 SOUTH PASS 9040 6.3 5.5 115 6.2 6.5 95 ST. LAWRENCE ALT 8620 2.0 2.8 71 2.9 3.7 78 TOGWOTEE PASS 9580 10.3 7.6 136 11.2 7.9 142 TOWNSEND CREEK 8700 3.5 3.1 113 5.3 4.7 113 ----- ----- Basin wide percent of average 119 105 BIGHORN BASIN BALD MTN. 9380 6.9 6.4 108 6.2 5.7 109 BEAR TRAP MEADOW 8200 1.6 1.8 89 2.7 3.6 75 BLACKWATER 9780 9.2 8.6 107 8.6 7.8 110 BONE SPRINGS DIV 9350 5.1 5.6 91 4.2 5.2 81 EVENING STAR 9200 9.7 9.4 103 11.1 8.8 126 GRAVE SPRINGS 8550 2.7 2.8 96 3.3 3.8 87 KIRWIN 9550 4.9 4.5 109 5.2 4.4 118 MARQUETTE 8760 1.1 3.9 28 2.4 4.3 56 MIDDLE POWDER 7760 3.9 3.8 103 2.7 5.2 52 OWL CREEK 8975 1.5 2.0 75 1.9 2.3 83 POWDER RIVER PASS 9480 4.1 3.7 111 4.8 4.4 109 SHELL CREEK 9580 5.0 5.4 93 4.4 4.8 92 SYLVAN LAKE 8420 7.0 7.1 99 9.6 7.7 125 SYLVAN ROAD 7120 4.1 4.0 103 6.7 7.2 93 TIMBER CREEK 7950 1.5 2.4 63 2.1 3.1 68 YOUNTS PEAK 8350 6.3 5.3 119 5.9 5.6 105 ----- ----- Basin wide percent of average 97 97 SHOSHONE RIVER BLACKWATER 9780 9.2 8.6 107 8.6 7.8 110 EVENING STAR 9200 9.7 9.4 103 11.1 8.8 126 KIRWIN 9550 4.9 4.5 109 5.2 4.4 118 MARQUETTE 8760 1.1 3.9 28 2.4 4.3 56 SYLVAN LAKE 8420 7.0 7.1 99 9.6 7.7 125 SYLVAN ROAD 7120 4.1 4.0 103 6.7 7.2 93 YOUNTS PEAK 8350 6.3 5.3 119 5.9 5.6 105 ----- ----- Basin wide percent of average 99 108 POWDER-TONGUE BEAR TRAP MEADOW 8200 1.6 1.8 89 2.7 3.6 75 BIG GOOSE 7990 1.4 2.6 54 3.0 3.2 94 BONE SPRINGS DIV 9350 5.1 5.6 91 4.2 5.2 81 BURGESS JUNCTION 7880 2.4 3.7 65 3.8 4.5 84 CLOUD PEAK RESERVOIR 9860 4.7 4.0 118 4.9 5.1 96 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 1.2 2.2 55 1.9 3.4 56 LITTLE GOOSE 8870 2.1 -M * 5.5 -M * MIDDLE POWDER 7760 3.9 3.8 103 2.7 5.2 52 POWDER RIVER PASS 9480 4.1 3.7 111 4.8 4.4 109 SOLDIER PARK 8720 .9 -M * 2.5 -M * SUCKER CREEK 8880 3.4 3.5 97 3.7 4.8 77 TIE CREEK 6870 1.3 1.3 100 2.9 3.9 74 ----- ----- Basin wide percent of average 85 80 BELLE FOURCHE BLIND PARK 6890 1.4 2.1 67 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 5.6 4.0 140 ----- ----- Basin wide percent of average 89 140 UPPER N. PLATTE RIVER COLUMBINE 9160 8.9 5.6 159 12.3 7.0 176 DIVIDE PEAK 8880 6.3 5.6 113 9.8 6.7 146 ELK RIVER 8700 -M 3.5 * -M 5.7 * JOE WRIGHT 10120 9.9 6.7 148 14.5 8.3 175 NORTH FRENCH CREEK 10130 14.0 8.6 163 14.7 8.1 181 OLD BATTLE 10000 12.3 9.9 124 14.4 10.2 141 SAGE CREEK BASIN 7850 3.6 3.2 113 6.7 3.9 172 SOUTH BRUSH CREEK 8440 5.9 3.2 184 9.2 5.5 167 TOWER 10500 16.7 13.7 122 19.2 11.6 166 WEBBER SPRINGS 9250 8.1 7.3 111 12.3 8.5 145 WILLOW CREEK PASS 9540 6.0 3.9 154 7.3 4.7 155 ----- ----- Basin wide percent of average 135 162 LOWER N. PLATTE - SWEETWATER - LARAMIE BROOKLYN LAKE 10240 8.9 6.6 135 10.4 6.7 155 CASPER MTN. 7900 3.1 5.0 62 5.9 5.6 105 DEADMAN HILL 10220 5.5 5.4 102 9.9 5.6 177 DEER PARK 9700 8.0 4.7 170 8.7 7.6 114 LAPRELE CREEK 8375 2.9 3.5 83 4.5 4.5 100 RENO HILL 8400 4.4 4.6 96 6.3 5.4 117 ROACH 9700 6.5 4.7 138 9.1 5.7 160 SAND LAKE 10050 12.9 10.0 129 12.7 7.8 163 SOUTH PASS 9040 6.3 5.5 115 6.2 6.5 95 WINDY PEAK 7900 2.3 2.5 92 4.7 4.0 118 ----- ----- Basin wide percent of average 116 132 LITTLE SNAKE RIVER BATTLE MOUNTAIN 7440 2.8 2.1 133 5.5 4.7 117 DIVIDE PEAK 8880 6.3 5.6 113 9.8 6.7 146 OLD BATTLE 10000 12.3 9.9 124 14.4 10.2 141 SANDSTONE RS 8150 2.5 2.7 93 8.2 5.9 139 WHISKEY PARK 8950 5.6 6.7 84 12.2 8.6 142 ----- ----- Basin wide percent of average 109 139 UPPER GREEN RIVER BIG SANDY OPENING 9080 4.7 4.4 107 5.5 4.6 120 BLIND BULL SUM 8650 8.7 7.9 110 6.4 7.1 90 EAST RIM DIVIDE 7930 3.4 3.6 94 3.9 3.8 103 ELKHART PARK G.S. 9400 3.3 3.9 85 4.1 4.7 87 GROS VENTRE SUMMIT 8750 5.5 4.3 128 5.8 4.6 126 GUNSIGHT PASS 9820 5.7 -M * 6.1 -M * KENDALL R.S. 7740 3.1 3.7 84 4.9 4.4 111 LOOMIS PARK 8240 5.4 4.9 110 6.3 5.4 117 NEW FORK LAKE 8340 3.4 3.1 110 3.6 4.1 88 POCKET CREEK 9360 3.8 -M * 4.9 -M * SNIDER BASIN 8060 6.1 4.1 149 7.2 4.9 147 SPRING CREEK DIVIDE 9000 10.2 7.6 134 11.4 8.0 143 TRIPLE PEAK 8500 8.9 7.1 125 11.1 7.1 156 ----- ----- Basin wide percent of average 115 120 LOWER GREEN RIVER HAMS FORK 7840 4.1 2.9 141 5.4 3.8 142 HEWINTA 9519 1.7 2.4 71 5.8 5.2 112 HICKERSON PARK 9145 1.3 1.7 76 3.4 3.4 100 HOLE-IN-ROCK 9150 1.5 1.6 94 3.7 3.1 119 INDIAN CREEK 9425 10.4 7.4 141 10.3 7.6 136 KELLEY R.S. 8180 6.6 4.7 140 9.2 6.2 148 STEEL CREEK PARK 10200 3.8 4.3 88 7.0 5.5 127 ----- ----- Basin wide percent of average 118 129 UPPER BEAR RIVER BUG LAKE 7950 7.1 4.5 158 10.1 6.2 163 HAYDEN FORK 9212 4.4 3.4 129 10.6 6.7 158 KELLEY R.S. 8180 6.6 4.7 140 9.2 6.2 148 LILY LAKE 9156 4.6 3.2 144 8.1 6.1 133 MONTE CRISTO 8960 9.9 5.9 168 12.5 7.9 158 SALT RIVER SUMMIT 7760 4.8 3.0 160 8.2 5.5 149 TRIAL LAKE 9992 9.8 6.2 158 12.0 7.3 164 ----- ----- Basin wide percent of average 153 154 ----------------------------------------------------------------------------- -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.