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: JANUARY 7 , 2011 ----------------------------------------------------------------------------- BASIN ELEV. SNOW WATER EQUIVALENT TOTAL PRECIPITATION Data Site Name (Ft) % % Current Average Avg Current Average Avg ----------------------------------------------------------------------------- WYOMING SNAKE RIVER BASE CAMP 7030 10.5 9.1 115 13.5 11.3 119 COTTONWOOD CREEK 7670 14.6 10.6 138 19.2 14.7 131 GRAND TARGHEE 9260 25.4 -M * 18.7 -M * GRANITE CREEK 6770 11.0 8.5 129 13.4 10.4 129 GRASSY LAKE 7265 17.4 16.3 107 20.7 19.0 109 GROS VENTRE SUMMIT 8750 8.9 7.5 119 8.9 6.8 131 GUNSIGHT PASS 9820 9.5 -M * 9.8 -M * LEWIS LAKE DIVIDE 7850 19.2 16.3 118 20.4 19.1 107 PHILLIPS BENCH 8200 17.0 13.8 123 18.6 14.8 126 SALT RIVER SUMMIT 7760 8.5 6.1 139 12.4 9.8 127 SNAKE RIVER STATION 6920 8.1 8.7 93 14.5 12.0 121 SPRING CREEK DIVIDE 9000 16.6 13.5 123 17.3 14.3 121 THUMB DIVIDE 7980 12.1 8.4 144 12.6 9.9 127 TOGWOTEE PASS 9580 15.4 12.7 121 16.7 13.0 128 TWO OCEAN PLATEAU 9240 19.4 14.5 134 15.7 14.5 108 WILLOW CREEK 8380 16.6 15.5 107 22.0 16.9 130 ----- ----- Basin wide percent of average 121 121 UPPER YELLOWSTONE-MADISON BEARTOOTH LAKE 9360 12.8 12.4 103 12.6 10.8 117 BLACK BEAR 8170 23.6 18.8 126 24.3 19.3 126 CANYON 7870 8.6 6.8 126 10.3 8.4 123 FISHER CREEK 9100 19.5 17.7 110 19.3 18.7 103 MADISON PLATEAU 7750 15.3 12.3 124 17.1 13.4 128 NORTHEAST ENTRANCE 7350 6.2 5.5 113 8.2 6.9 119 PARKER PEAK 9400 14.9 11.4 131 14.8 8.8 168 SYLVAN LAKE 8420 12.3 11.4 108 15.3 11.7 131 THUMB DIVIDE 7980 12.1 8.4 144 12.6 9.9 127 TWO OCEAN PLATEAU 9240 19.4 14.5 134 15.7 14.5 108 WHISKEY CREEK 6800 10.6 8.2 129 13.2 10.7 123 WHITE MILL 8700 13.4 12.1 111 14.6 13.9 105 WOLVERINE 7650 7.8 6.3 124 7.8 7.5 104 ----- ----- Basin wide percent of average 121 120 WIND RIVER BURROUGHS CREEK 8750 8.2 7.4 111 8.6 8.7 99 CASTLE CREEK 8400 3.8 -M * 4.5 -M * COLD SPRINGS 9630 5.1 4.8 106 5.2 6.0 87 DEER PARK 9700 12.9 7.2 179 13.9 11.6 120 HOBBS PARK 10100 8.6 8.0 108 7.9 6.8 116 LITTLE WARM 9370 6.7 5.8 116 6.9 7.2 96 SOUTH PASS 9040 10.5 8.7 121 9.6 9.7 99 ST. LAWRENCE ALT 8620 3.5 3.9 90 4.3 4.8 90 TOGWOTEE PASS 9580 15.4 12.7 121 16.7 13.0 128 TOWNSEND CREEK 8700 4.9 4.6 107 6.8 6.3 108 ----- ----- Basin wide percent of average 120 108 BIGHORN BASIN BALD MTN. 9380 11.2 10.5 107 10.0 9.2 109 BEAR TRAP MEADOW 8200 3.7 2.7 137 4.8 4.7 102 BLACKWATER 9780 14.3 12.9 111 13.8 11.5 120 BONE SPRINGS DIV 9350 8.4 8.4 100 7.8 7.8 100 EVENING STAR 9200 16.3 14.8 110 17.9 14.0 128 GRAVE SPRINGS 8550 3.8 4.4 86 4.3 5.2 83 KIRWIN 9550 7.0 6.2 113 7.6 6.2 123 MARQUETTE 8760 1.8 5.1 35 4.1 5.5 75 MIDDLE POWDER 7760 5.3 5.8 91 3.6 7.1 51 OWL CREEK 8975 2.7 2.8 96 3.1 3.0 103 POWDER RIVER PASS 9480 6.6 5.6 118 7.6 6.4 119 SHELL CREEK 9580 7.5 7.8 96 6.5 7.2 90 SYLVAN LAKE 8420 12.3 11.4 108 15.3 11.7 131 SYLVAN ROAD 7120 8.2 6.7 122 11.3 10.7 106 TIMBER CREEK 7950 2.4 3.1 77 2.7 3.9 69 YOUNTS PEAK 8350 9.7 8.7 111 8.9 8.9 100 ----- ----- Basin wide percent of average 104 105 SHOSHONE RIVER BLACKWATER 9780 14.3 12.9 111 13.8 11.5 120 EVENING STAR 9200 16.3 14.8 110 17.9 14.0 128 KIRWIN 9550 7.0 6.2 113 7.6 6.2 123 MARQUETTE 8760 1.8 5.1 35 4.1 5.5 75 SYLVAN LAKE 8420 12.3 11.4 108 15.3 11.7 131 SYLVAN ROAD 7120 8.2 6.7 122 11.3 10.7 106 YOUNTS PEAK 8350 9.7 8.7 111 8.9 8.9 100 ----- ----- Basin wide percent of average 106 115 POWDER-TONGUE BEAR TRAP MEADOW 8200 3.7 2.7 137 4.8 4.7 102 BIG GOOSE 7990 3.2 4.7 68 4.7 4.7 100 BONE SPRINGS DIV 9350 8.4 8.4 100 7.8 7.8 100 BURGESS JUNCTION 7880 4.0 5.9 68 5.3 6.5 82 CLOUD PEAK RESERVOIR 9860 7.1 6.1 116 7.5 6.7 112 DOME LAKE 8880 4.2 6.4 66 6.2 7.2 86 GRAVE SPRINGS 8550 3.8 4.4 86 4.3 5.2 83 HANSEN SAWMILL 8360 3.4 3.4 100 3.7 4.5 82 LITTLE GOOSE 8870 3.7 -M * 7.5 -M * MIDDLE POWDER 7760 5.3 5.8 91 3.6 7.1 51 POWDER RIVER PASS 9480 6.6 5.6 118 7.6 6.4 119 SOLDIER PARK 8720 3.0 -M * 4.4 -M * SUCKER CREEK 8880 5.6 5.6 100 6.2 7.1 87 TIE CREEK 6870 2.4 2.8 86 4.4 5.4 81 ----- ----- Basin wide percent of average 93 90 BELLE FOURCHE BLIND PARK 6890 3.3 4.0 83 8.8 6.5 135 COLE CANYON 5910 3.7 3.5 106 6.0 4.1 146 NORTH RAPID CREEK 6130 3.8 3.6 106 7.7 5.5 140 ----- ----- Basin wide percent of average 97 140 UPPER N. PLATTE RIVER COLUMBINE 9160 15.9 11.2 142 19.0 12.6 151 DIVIDE PEAK 8880 11.9 10.0 119 15.7 10.8 145 ELK RIVER 8700 12.1 8.2 148 14.8 9.7 153 JOE WRIGHT 10120 14.3 10.5 136 19.7 12.8 154 NORTH FRENCH CREEK 10130 21.6 14.4 150 21.4 12.9 166 OLD BATTLE 10000 24.3 15.6 156 24.9 17.3 144 SAGE CREEK BASIN 7850 10.7 5.8 184 11.5 6.3 183 SOUTH BRUSH CREEK 8440 9.5 5.6 170 12.8 8.4 152 TOWER 10500 28.0 22.4 125 27.7 19.4 143 WEBBER SPRINGS 9250 16.4 12.3 133 21.2 14.1 150 WILLOW CREEK PASS 9540 10.7 5.9 181 10.8 6.8 159 ----- ----- Basin wide percent of average 144 152 LOWER N. PLATTE - SWEETWATER - LARAMIE BROOKLYN LAKE 10240 15.2 11.7 130 16.5 11.0 150 CASPER MTN. 7900 6.0 7.3 82 8.8 7.5 117 DEADMAN HILL 10220 5.3 8.2 65 13.4 8.4 160 DEER PARK 9700 12.9 7.2 179 13.9 11.6 120 LAPRELE CREEK 8375 5.8 5.7 102 7.1 6.6 108 RENO HILL 8400 7.4 7.0 106 9.3 7.6 122 ROACH 9700 11.3 8.0 141 14.4 9.2 157 SAND LAKE 10050 19.5 15.9 123 18.7 12.5 150 SOUTH PASS 9040 10.5 8.7 121 9.6 9.7 99 WINDY PEAK 7900 4.7 3.6 131 7.2 5.9 122 ----- ----- Basin wide percent of average 118 132 LITTLE SNAKE RIVER BATTLE MOUNTAIN 7440 5.7 4.8 119 9.1 7.7 118 DIVIDE PEAK 8880 11.9 10.0 119 15.7 10.8 145 OLD BATTLE 10000 24.3 15.6 156 24.9 17.3 144 SANDSTONE RS 8150 7.5 6.1 123 15.1 9.7 156 WHISKEY PARK 8950 -M 12.4 * 21.6 14.5 149 ----- ----- Basin wide percent of average 135 144 UPPER GREEN RIVER BIG SANDY OPENING 9080 8.5 7.4 115 9.1 7.0 130 BLIND BULL SUM 8650 14.6 14.3 102 11.3 12.0 94 EAST RIM DIVIDE 7930 7.2 6.4 113 7.1 6.3 113 ELKHART PARK G.S. 9400 6.9 6.8 101 7.5 7.2 104 GROS VENTRE SUMMIT 8750 8.9 7.5 119 8.9 6.8 131 GUNSIGHT PASS 9820 9.5 -M * 9.8 -M * KENDALL R.S. 7740 6.9 7.3 95 8.6 7.5 115 LOOMIS PARK 8240 9.7 8.7 111 10.8 9.1 119 NEW FORK LAKE 8340 6.5 5.8 112 6.4 6.4 100 POCKET CREEK 9360 6.6 -M * 8.3 -M * SNIDER BASIN 8060 10.3 7.4 139 10.9 8.7 125 SPRING CREEK DIVIDE 9000 16.6 13.5 123 17.3 14.3 121 TRIPLE PEAK 8500 14.8 12.8 116 16.9 12.3 137 ----- ----- Basin wide percent of average 113 118 LOWER GREEN RIVER HAMS FORK 7840 7.8 6.0 130 8.9 6.4 139 HEWINTA 9519 5.1 4.6 111 9.8 7.4 132 HICKERSON PARK 9145 3.3 3.2 103 5.2 4.4 118 HOLE-IN-ROCK 9150 3.9 2.9 134 5.5 4.0 138 INDIAN CREEK 9425 17.1 13.5 127 16.4 13.2 124 KELLEY R.S. 8180 11.3 8.2 138 14.2 11.0 129 STEEL CREEK PARK 10200 8.7 7.2 121 11.8 8.0 148 ----- ----- Basin wide percent of average 125 132 UPPER BEAR RIVER BUG LAKE 7950 15.7 9.2 171 17.4 9.9 176 HAYDEN FORK 9212 10.8 7.0 154 18.1 10.7 169 KELLEY R.S. 8180 11.3 8.2 138 14.2 11.0 129 LILY LAKE 9156 9.9 6.0 165 13.3 9.2 145 MONTE CRISTO 8960 18.6 12.4 150 21.2 13.0 163 SALT RIVER SUMMIT 7760 8.5 6.1 139 12.4 9.8 127 TRIAL LAKE 9992 21.0 11.5 183 19.7 12.2 161 ----- ----- Basin wide percent of average 159 153 ----------------------------------------------------------------------------- -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.