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 WEDNESDAY: JANUARY 19 , 2011 ----------------------------------------------------------------------------- BASIN ELEV. SNOW WATER EQUIVALENT TOTAL PRECIPITATION Data Site Name (Ft) % % Current Average Avg Current Average Avg ----------------------------------------------------------------------------- WYOMING SNAKE RIVER BASE CAMP 7030 13.4 10.9 123 16.1 13.1 123 COTTONWOOD CREEK 7670 18.3 12.4 148 22.8 16.8 136 GRAND TARGHEE 9260 31.8 -M * 23.4 -M * GRANITE CREEK 6770 13.1 10.4 126 15.4 12.1 127 GRASSY LAKE 7265 23.1 19.6 118 25.8 22.1 117 GROS VENTRE SUMMIT 8750 9.6 8.5 113 9.4 7.7 122 GUNSIGHT PASS 9820 10.8 -M * 11.0 -M * LEWIS LAKE DIVIDE 7850 22.8 19.6 116 23.3 22.0 106 PHILLIPS BENCH 8200 19.8 16.1 123 21.1 17.2 123 SALT RIVER SUMMIT 7760 10.8 7.6 142 14.6 11.2 130 SNAKE RIVER STATION 6920 -M 10.6 * 17.2 13.8 125 SPRING CREEK DIVIDE 9000 22.3 15.3 146 22.1 16.4 135 THUMB DIVIDE 7980 13.1 10.0 131 13.3 11.4 117 TOGWOTEE PASS 9580 18.5 14.8 125 19.7 15.0 131 TWO OCEAN PLATEAU 9240 22.0 16.7 132 17.1 16.5 104 WILLOW CREEK 8380 21.4 17.8 120 25.7 19.4 132 ----- ----- Basin wide percent of average 127 123 UPPER YELLOWSTONE-MADISON BEARTOOTH LAKE 9360 15.7 14.6 108 15.3 12.4 123 BLACK BEAR 8170 27.7 22.5 123 26.9 22.8 118 CANYON 7870 10.1 7.9 128 11.3 9.6 118 FISHER CREEK 9100 24.2 21.2 114 23.0 21.8 106 MADISON PLATEAU 7750 17.5 14.4 122 19.1 15.4 124 NORTHEAST ENTRANCE 7350 7.5 6.8 110 9.6 7.9 122 PARKER PEAK 9400 17.8 13.3 134 16.9 9.9 171 SYLVAN LAKE 8420 15.1 13.3 114 18.3 13.2 139 THUMB DIVIDE 7980 13.1 10.0 131 13.3 11.4 117 TWO OCEAN PLATEAU 9240 22.0 16.7 132 17.1 16.5 104 WHISKEY CREEK 6800 12.3 9.7 127 14.7 12.3 120 WHITE MILL 8700 16.5 14.4 115 17.4 16.0 109 WOLVERINE 7650 10.0 7.6 132 9.2 8.3 111 ----- ----- Basin wide percent of average 122 119 WIND RIVER BURROUGHS CREEK 8750 9.5 9.1 104 10.0 10.1 99 CASTLE CREEK 8400 4.2 -M * 4.9 -M * COLD SPRINGS 9630 5.5 5.6 98 5.5 6.6 83 DEER PARK 9700 13.6 10.4 131 14.5 13.0 112 HOBBS PARK 10100 9.2 9.1 101 8.4 7.5 112 LITTLE WARM 9370 7.5 7.0 107 7.5 8.2 91 SOUTH PASS 9040 11.1 10.2 109 9.9 10.9 91 ST. LAWRENCE ALT 8620 3.5 4.4 80 4.5 5.2 87 TOGWOTEE PASS 9580 18.5 14.8 125 19.7 15.0 131 TOWNSEND CREEK 8700 5.1 5.2 98 7.1 6.8 104 ----- ----- Basin wide percent of average 110 105 BIGHORN BASIN BALD MTN. 9380 13.7 12.1 113 11.9 10.5 113 BEAR TRAP MEADOW 8200 4.6 3.1 148 5.5 5.1 108 BLACKWATER 9780 16.7 14.8 113 16.2 12.8 127 BONE SPRINGS DIV 9350 11.0 9.6 115 9.7 8.7 111 EVENING STAR 9200 20.9 17.6 119 22.8 15.8 144 GRAVE SPRINGS 8550 4.3 5.1 84 4.7 6.0 78 KIRWIN 9550 7.5 7.1 106 8.2 7.0 117 MARQUETTE 8760 1.7 5.6 30 4.3 5.8 74 MIDDLE POWDER 7760 5.8 6.5 89 4.0 7.7 52 OWL CREEK 8975 2.9 3.1 94 3.3 3.4 97 POWDER RIVER PASS 9480 -M 6.5 * -M 7.4 * SHELL CREEK 9580 10.3 9.0 114 9.2 8.2 112 SYLVAN LAKE 8420 15.1 13.3 114 18.3 13.2 139 SYLVAN ROAD 7120 10.2 7.9 129 13.4 12.1 111 TIMBER CREEK 7950 2.4 3.4 71 2.9 4.2 69 YOUNTS PEAK 8350 11.2 10.5 107 9.8 10.2 96 ----- ----- Basin wide percent of average 107 110 SHOSHONE RIVER BLACKWATER 9780 16.7 14.8 113 16.2 12.8 127 EVENING STAR 9200 20.9 17.6 119 22.8 15.8 144 KIRWIN 9550 7.5 7.1 106 8.2 7.0 117 MARQUETTE 8760 1.7 5.6 30 4.3 5.8 74 SYLVAN LAKE 8420 15.1 13.3 114 18.3 13.2 139 SYLVAN ROAD 7120 10.2 7.9 129 13.4 12.1 111 YOUNTS PEAK 8350 11.2 10.5 107 9.8 10.2 96 ----- ----- Basin wide percent of average 108 121 POWDER-TONGUE BEAR TRAP MEADOW 8200 4.6 3.1 148 5.5 5.1 108 BIG GOOSE 7990 4.0 5.4 74 5.5 4.9 112 BONE SPRINGS DIV 9350 11.0 9.6 115 9.7 8.7 111 BURGESS JUNCTION 7880 4.8 6.7 72 6.0 7.2 83 CLOUD PEAK RESERVOIR 9860 8.5 7.2 118 8.8 7.5 117 DOME LAKE 8880 5.5 7.3 75 7.3 8.0 91 GRAVE SPRINGS 8550 4.3 5.1 84 4.7 6.0 78 HANSEN SAWMILL 8360 4.1 3.8 108 4.4 4.9 90 LITTLE GOOSE 8870 4.8 -M * 8.5 -M * MIDDLE POWDER 7760 5.8 6.5 89 4.0 7.7 52 POWDER RIVER PASS 9480 -M 6.5 * -M 7.4 * SOLDIER PARK 8720 3.8 -M * 5.2 -M * SUCKER CREEK 8880 6.6 6.5 102 7.4 7.9 94 TIE CREEK 6870 3.1 3.7 84 5.0 6.1 82 ----- ----- Basin wide percent of average 96 92 BELLE FOURCHE BLIND PARK 6890 4.9 4.6 107 10.5 7.2 146 COLE CANYON 5910 4.8 3.9 123 7.3 4.4 166 NORTH RAPID CREEK 6130 5.0 4.2 119 9.0 5.9 153 ----- ----- Basin wide percent of average 116 153 UPPER N. PLATTE RIVER CINNABAR PARK 9574 16.1 12.2 132 19.2 13.4 143 COLUMBINE 9160 19.6 13.7 143 22.3 14.7 152 DIVIDE PEAK 8880 12.9 11.6 111 16.4 12.3 133 ELK RIVER 8700 14.4 10.2 141 16.8 11.2 150 JOE WRIGHT 10120 16.2 12.1 134 22.0 14.5 152 NORTH FRENCH CREEK 10130 26.5 16.4 162 25.8 14.7 176 OLD BATTLE 10000 26.7 17.7 151 26.6 19.9 134 SAGE CREEK BASIN 7850 11.4 6.7 170 12.0 7.1 169 SOUTH BRUSH CREEK 8440 10.7 6.4 167 13.9 9.6 145 TOWER 10500 34.2 26.1 131 34.9 22.5 155 WEBBER SPRINGS 9250 18.0 14.1 128 22.7 16.2 140 WILLOW CREEK PASS 9540 11.3 6.7 169 11.4 7.5 152 ----- ----- Basin wide percent of average 142 149 LOWER N. PLATTE - SWEETWATER - LARAMIE BROOKLYN LAKE 10240 18.0 13.5 133 18.9 12.7 149 CASPER MTN. 7900 6.7 8.1 83 9.4 8.2 115 DEADMAN HILL 10220 8.2 9.4 87 14.1 9.5 148 DEER PARK 9700 13.6 10.4 131 14.5 13.0 112 LAPRELE CREEK 8375 6.8 6.5 105 8.1 7.4 109 RENO HILL 8400 8.3 7.7 108 10.0 8.5 118 ROACH 9700 12.6 9.4 134 15.8 10.4 152 SAND LAKE 10050 21.8 17.9 122 20.6 14.3 144 SOUTH PASS 9040 11.1 10.2 109 9.9 10.9 91 WINDY PEAK 7900 5.3 4.0 133 7.7 6.4 120 ----- ----- Basin wide percent of average 116 127 LITTLE SNAKE RIVER BATTLE MOUNTAIN 7440 6.1 6.4 95 9.6 8.8 109 DIVIDE PEAK 8880 12.9 11.6 111 16.4 12.3 133 OLD BATTLE 10000 26.7 17.7 151 26.6 19.9 134 SANDSTONE RS 8150 8.2 7.9 104 16.2 11.2 145 WHISKEY PARK 8950 -M 15.4 * 24.5 17.2 142 ----- ----- Basin wide percent of average 124 134 UPPER GREEN RIVER BIG SANDY OPENING 9080 9.6 8.4 114 10.1 8.0 126 BLIND BULL SUM 8650 19.2 16.3 118 14.2 13.8 103 EAST RIM DIVIDE 7930 8.7 7.4 118 8.3 7.2 115 ELKHART PARK G.S. 9400 8.2 7.8 105 8.6 8.1 106 GROS VENTRE SUMMIT 8750 9.6 8.5 113 9.4 7.7 122 GUNSIGHT PASS 9820 10.8 -M * 11.0 -M * KENDALL R.S. 7740 8.2 8.6 95 9.9 8.6 115 LOOMIS PARK 8240 11.9 9.9 120 12.9 10.5 123 NEW FORK LAKE 8340 7.9 6.7 118 7.4 7.1 104 POCKET CREEK 9360 7.6 -M * 9.5 -M * SNIDER BASIN 8060 13.1 8.6 152 13.2 9.9 133 SPRING CREEK DIVIDE 9000 22.3 15.3 146 22.1 16.4 135 TRIPLE PEAK 8500 19.4 14.7 132 21.4 14.3 150 ----- ----- Basin wide percent of average 123 123 LOWER GREEN RIVER HAMS FORK 7840 10.2 7.2 142 10.5 7.4 142 HEWINTA 9519 6.5 5.6 116 10.6 8.3 128 HICKERSON PARK 9145 3.6 3.8 95 5.5 4.8 115 HOLE-IN-ROCK 9150 4.2 3.5 120 5.8 4.4 132 INDIAN CREEK 9425 20.4 15.5 132 18.9 15.1 125 KELLEY R.S. 8180 13.4 9.3 144 16.3 12.5 130 STEEL CREEK PARK 10200 9.8 8.2 120 12.8 9.0 142 ----- ----- Basin wide percent of average 128 131 UPPER BEAR RIVER BUG LAKE 7950 17.2 11.2 154 18.6 11.5 162 HAYDEN FORK 9212 12.3 8.3 148 19.5 12.2 160 KELLEY R.S. 8180 13.4 9.3 144 16.3 12.5 130 LILY LAKE 9156 11.0 7.0 157 14.1 10.3 137 MONTE CRISTO 8960 21.0 15.1 139 23.2 14.9 156 SALT RIVER SUMMIT 7760 10.8 7.6 142 14.6 11.2 130 TRIAL LAKE 9992 22.6 13.5 167 23.5 14.0 168 ----- ----- Basin wide percent of average 150 150 ----------------------------------------------------------------------------- -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.