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: JANUARY 2 , 2011 ----------------------------------------------------------------------------- BASIN ELEV. SNOW WATER EQUIVALENT TOTAL PRECIPITATION Data Site Name (Ft) % % Current Average Avg Current Average Avg ----------------------------------------------------------------------------- WYOMING SNAKE RIVER BASE CAMP 7030 10.2 8.4 121 13.4 10.6 126 COTTONWOOD CREEK 7670 14.3 9.9 144 18.9 13.7 138 GRAND TARGHEE 9260 24.3 -M * 17.7 -M * GRANITE CREEK 6770 10.8 7.8 138 13.2 9.7 136 GRASSY LAKE 7265 16.4 15.0 109 19.4 17.6 110 GROS VENTRE SUMMIT 8750 8.6 7.0 123 8.4 6.5 129 GUNSIGHT PASS 9820 9.1 -M * 9.5 -M * LEWIS LAKE DIVIDE 7850 18.7 15.0 125 19.6 17.8 110 PHILLIPS BENCH 8200 16.5 12.8 129 17.9 13.7 131 SALT RIVER SUMMIT 7760 8.1 5.5 147 11.9 9.1 131 SNAKE RIVER STATION 6920 7.6 8.0 95 14.1 11.2 126 SPRING CREEK DIVIDE 9000 16.3 12.7 128 16.9 13.2 128 THUMB DIVIDE 7980 11.7 7.8 150 12.2 9.2 133 TOGWOTEE PASS 9580 14.8 11.8 125 16.0 12.2 131 TWO OCEAN PLATEAU 9240 18.9 13.6 139 14.9 13.7 109 WILLOW CREEK 8380 16.6 14.5 114 21.6 15.8 137 ----- ----- Basin wide percent of average 127 126 UPPER YELLOWSTONE-MADISON BEARTOOTH LAKE 9360 12.3 11.6 106 12.0 10.1 119 BLACK BEAR 8170 22.7 17.4 130 23.4 17.9 131 CANYON 7870 8.6 6.2 139 9.8 7.9 124 FISHER CREEK 9100 18.6 16.5 113 18.3 17.4 105 MADISON PLATEAU 7750 14.9 11.4 131 16.5 12.6 131 NORTHEAST ENTRANCE 7350 5.9 5.0 118 7.9 6.5 122 PARKER PEAK 9400 13.7 10.7 128 14.0 8.3 169 SYLVAN LAKE 8420 11.7 10.7 109 14.8 11.1 133 THUMB DIVIDE 7980 11.7 7.8 150 12.2 9.2 133 TWO OCEAN PLATEAU 9240 18.9 13.6 139 14.9 13.7 109 WHISKEY CREEK 6800 10.2 7.6 134 12.7 10.0 127 WHITE MILL 8700 13.1 11.3 116 13.9 13.0 107 WOLVERINE 7650 7.6 5.9 129 7.3 7.1 103 ----- ----- Basin wide percent of average 125 123 WIND RIVER BURROUGHS CREEK 8750 7.8 6.8 115 8.1 8.1 100 CASTLE CREEK 8400 3.5 -M * 4.0 -M * COLD SPRINGS 9630 4.9 4.7 104 5.0 5.7 88 DEER PARK 9700 12.6 6.7 188 13.6 11.0 124 HOBBS PARK 10100 8.5 7.7 110 7.6 6.5 117 LITTLE WARM 9370 6.5 5.4 120 6.5 6.8 96 SOUTH PASS 9040 10.2 8.2 124 9.1 9.3 98 ST. LAWRENCE ALT 8620 3.0 3.8 79 4.1 4.6 89 TOGWOTEE PASS 9580 14.8 11.8 125 16.0 12.2 131 TOWNSEND CREEK 8700 4.6 4.4 105 6.7 6.0 112 ----- ----- Basin wide percent of average 123 109 BIGHORN BASIN BALD MTN. 9380 10.2 9.8 104 9.1 8.6 106 BEAR TRAP MEADOW 8200 3.4 2.6 131 4.3 4.5 96 BLACKWATER 9780 14.1 12.2 116 13.2 10.9 121 BONE SPRINGS DIV 9350 7.9 7.9 100 7.1 7.4 96 EVENING STAR 9200 15.9 13.9 114 17.1 13.2 130 GRAVE SPRINGS 8550 3.6 4.1 88 4.3 4.9 88 KIRWIN 9550 6.8 6.0 113 7.2 6.0 120 MARQUETTE 8760 1.7 5.0 34 2.2 5.3 42 MIDDLE POWDER 7760 5.0 5.5 91 3.3 6.9 48 OWL CREEK 8975 2.4 2.7 89 2.7 2.9 93 POWDER RIVER PASS 9480 6.4 5.3 121 7.1 6.1 116 SHELL CREEK 9580 7.2 7.4 97 6.4 6.8 94 SYLVAN LAKE 8420 11.7 10.7 109 14.8 11.1 133 SYLVAN ROAD 7120 8.0 6.3 127 10.9 10.2 107 TIMBER CREEK 7950 2.2 3.0 73 2.6 3.7 70 YOUNTS PEAK 8350 9.3 8.1 115 8.4 8.3 101 ----- ----- Basin wide percent of average 105 103 SHOSHONE RIVER BLACKWATER 9780 14.1 12.2 116 13.2 10.9 121 EVENING STAR 9200 15.9 13.9 114 17.1 13.2 130 KIRWIN 9550 6.8 6.0 113 7.2 6.0 120 MARQUETTE 8760 1.7 5.0 34 2.2 5.3 42 SYLVAN LAKE 8420 11.7 10.7 109 14.8 11.1 133 SYLVAN ROAD 7120 8.0 6.3 127 10.9 10.2 107 YOUNTS PEAK 8350 9.3 8.1 115 8.4 8.3 101 ----- ----- Basin wide percent of average 109 114 POWDER-TONGUE BEAR TRAP MEADOW 8200 3.4 2.6 131 4.3 4.5 96 BIG GOOSE 7990 2.8 4.5 62 4.5 4.5 100 BONE SPRINGS DIV 9350 7.9 7.9 100 7.1 7.4 96 BURGESS JUNCTION 7880 3.7 5.6 66 4.9 6.2 79 CLOUD PEAK RESERVOIR 9860 6.9 5.8 119 7.1 6.5 109 DOME LAKE 8880 3.7 6.1 61 5.9 7.0 84 GRAVE SPRINGS 8550 3.6 4.1 88 4.3 4.9 88 HANSEN SAWMILL 8360 2.9 3.3 88 3.6 4.3 84 LITTLE GOOSE 8870 3.5 -M * 7.1 -M * MIDDLE POWDER 7760 5.0 5.5 91 3.3 6.9 48 POWDER RIVER PASS 9480 6.4 5.3 121 7.1 6.1 116 SOLDIER PARK 8720 2.7 -M * 4.3 -M * SUCKER CREEK 8880 5.1 5.3 96 5.9 6.8 87 TIE CREEK 6870 2.2 2.5 88 4.0 5.2 77 ----- ----- Basin wide percent of average 92 88 BELLE FOURCHE BLIND PARK 6890 2.7 3.6 75 8.2 6.3 130 COLE CANYON 5910 2.8 3.4 82 5.6 3.9 144 NORTH RAPID CREEK 6130 3.2 3.4 94 7.0 5.3 132 ----- ----- Basin wide percent of average 84 134 UPPER N. PLATTE RIVER COLUMBINE 9160 15.3 10.2 150 17.7 11.7 151 DIVIDE PEAK 8880 11.8 9.3 127 15.1 10.2 148 ELK RIVER 8700 11.9 7.4 161 14.4 9.0 160 JOE WRIGHT 10120 14.3 9.8 146 19.1 12.1 158 NORTH FRENCH CREEK 10130 20.9 13.5 155 20.4 12.2 167 OLD BATTLE 10000 23.3 14.8 157 24.0 16.2 148 SAGE CREEK BASIN 7850 10.3 5.4 191 11.2 5.9 190 SOUTH BRUSH CREEK 8440 9.3 5.2 179 12.1 7.9 153 TOWER 10500 27.5 20.9 132 27.1 18.1 150 WEBBER SPRINGS 9250 16.1 11.6 139 20.5 13.2 155 WILLOW CREEK PASS 9540 10.7 5.6 191 10.8 6.5 166 ----- ----- Basin wide percent of average 151 156 LOWER N. PLATTE - SWEETWATER - LARAMIE BROOKLYN LAKE 10240 14.6 10.9 134 16.1 10.3 156 CASPER MTN. 7900 5.9 7.0 84 8.8 7.3 121 DEADMAN HILL 10220 6.1 7.7 79 13.1 8.0 164 DEER PARK 9700 12.6 6.7 188 13.6 11.0 124 LAPRELE CREEK 8375 5.5 5.4 102 6.9 6.2 111 RENO HILL 8400 7.2 6.6 109 8.9 7.2 124 ROACH 9700 11.2 7.4 151 13.9 8.6 162 SAND LAKE 10050 18.7 15.1 124 17.9 11.7 153 SOUTH PASS 9040 10.2 8.2 124 9.1 9.3 98 WINDY PEAK 7900 4.4 3.5 126 7.1 5.6 127 ----- ----- Basin wide percent of average 123 135 LITTLE SNAKE RIVER BATTLE MOUNTAIN 7440 6.3 4.2 150 8.7 7.2 121 DIVIDE PEAK 8880 11.8 9.3 127 15.1 10.2 148 OLD BATTLE 10000 23.3 14.8 157 24.0 16.2 148 SANDSTONE RS 8150 7.4 5.4 137 14.8 9.0 164 WHISKEY PARK 8950 -M 11.3 * 21.2 13.4 158 ----- ----- Basin wide percent of average 145 150 UPPER GREEN RIVER BIG SANDY OPENING 9080 8.0 7.0 114 8.7 6.6 132 BLIND BULL SUM 8650 14.3 13.4 107 10.9 11.2 97 EAST RIM DIVIDE 7930 6.9 6.0 115 6.8 5.8 117 ELKHART PARK G.S. 9400 6.4 6.4 100 7.2 6.8 106 GROS VENTRE SUMMIT 8750 8.6 7.0 123 8.4 6.5 129 GUNSIGHT PASS 9820 9.1 -M * 9.5 -M * KENDALL R.S. 7740 6.4 6.8 94 8.5 7.0 121 LOOMIS PARK 8240 9.5 8.1 117 10.5 8.5 124 NEW FORK LAKE 8340 6.1 5.5 111 6.1 6.0 102 POCKET CREEK 9360 6.6 -M * 8.1 -M * SNIDER BASIN 8060 10.1 7.0 144 10.6 8.1 131 SPRING CREEK DIVIDE 9000 16.3 12.7 128 16.9 13.2 128 TRIPLE PEAK 8500 14.6 12.0 122 16.5 11.4 145 ----- ----- Basin wide percent of average 117 122 LOWER GREEN RIVER HAMS FORK 7840 7.5 5.6 134 8.6 5.9 146 HEWINTA 9519 5.3 4.2 126 9.7 7.1 137 HICKERSON PARK 9145 2.9 2.9 100 4.8 4.2 114 HOLE-IN-ROCK 9150 3.1 2.7 115 5.5 3.9 141 INDIAN CREEK 9425 16.7 12.7 131 15.8 12.3 128 KELLEY R.S. 8180 11.0 7.7 143 13.3 10.2 130 STEEL CREEK PARK 10200 8.5 6.8 125 11.7 7.6 154 ----- ----- Basin wide percent of average 129 136 UPPER BEAR RIVER BUG LAKE 7950 15.4 8.5 181 17.0 9.3 183 HAYDEN FORK 9212 10.9 6.4 170 17.3 10.1 171 KELLEY R.S. 8180 11.0 7.7 143 13.3 10.2 130 LILY LAKE 9156 9.9 5.6 177 13.1 8.7 151 MONTE CRISTO 8960 18.5 11.3 164 19.0 12.2 156 SALT RIVER SUMMIT 7760 8.1 5.5 147 11.9 9.1 131 TRIAL LAKE 9992 21.1 10.6 199 19.4 11.4 170 ----- ----- Basin wide percent of average 171 156 ----------------------------------------------------------------------------- -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.