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 SATURDAY: JANUARY 22 , 2011 ----------------------------------------------------------------------------- BASIN ELEV. SNOW WATER EQUIVALENT TOTAL PRECIPITATION Data Site Name (Ft) % % Current Average Avg Current Average Avg ----------------------------------------------------------------------------- WYOMING SNAKE RIVER BASE CAMP 7030 14.0 11.3 124 16.7 13.6 123 COTTONWOOD CREEK 7670 19.3 12.9 150 23.8 17.3 138 GRAND TARGHEE 9260 32.9 -M * 23.9 -M * GRANITE CREEK 6770 13.7 10.9 126 15.8 12.5 126 GRASSY LAKE 7265 23.9 20.4 117 26.5 22.8 116 GROS VENTRE SUMMIT 8750 10.0 8.7 115 9.8 8.0 123 GUNSIGHT PASS 9820 11.2 -M * 11.4 -M * LEWIS LAKE DIVIDE 7850 23.3 20.4 114 23.5 22.7 104 PHILLIPS BENCH 8200 20.5 16.7 123 21.6 17.8 121 SALT RIVER SUMMIT 7760 11.3 8.0 141 15.2 11.6 131 SNAKE RIVER STATION 6920 9.9 11.0 90 17.4 14.2 123 SPRING CREEK DIVIDE 9000 23.4 15.8 148 23.0 16.9 136 THUMB DIVIDE 7980 13.3 10.4 128 13.5 11.7 115 TOGWOTEE PASS 9580 19.3 15.3 126 20.4 15.4 132 TWO OCEAN PLATEAU 9240 22.6 17.2 131 17.4 17.0 102 WILLOW CREEK 8380 22.5 18.4 122 26.6 20.0 133 ----- ----- Basin wide percent of average 125 122 UPPER YELLOWSTONE-MADISON BEARTOOTH LAKE 9360 16.3 14.8 110 15.8 12.8 123 BLACK BEAR 8170 28.6 23.4 122 27.4 23.5 117 CANYON 7870 10.4 8.1 128 11.7 9.9 118 FISHER CREEK 9100 25.3 21.7 117 23.9 22.5 106 MADISON PLATEAU 7750 18.1 14.9 121 19.6 15.9 123 NORTHEAST ENTRANCE 7350 8.1 6.9 117 10.1 8.1 125 PARKER PEAK 9400 18.4 13.5 136 17.2 10.2 169 SYLVAN LAKE 8420 15.5 13.7 113 18.7 13.6 138 THUMB DIVIDE 7980 13.3 10.4 128 13.5 11.7 115 TWO OCEAN PLATEAU 9240 22.6 17.2 131 17.4 17.0 102 WHISKEY CREEK 6800 12.7 10.1 126 15.2 12.7 120 WHITE MILL 8700 17.4 14.7 118 18.1 16.6 109 WOLVERINE 7650 10.7 7.8 137 9.7 8.5 114 ----- ----- Basin wide percent of average 123 119 WIND RIVER BURROUGHS CREEK 8750 9.9 9.2 108 10.4 10.4 100 CASTLE CREEK 8400 4.3 -M * 5.0 -M * COLD SPRINGS 9630 5.6 5.6 100 5.6 6.7 84 DEER PARK 9700 13.8 11.0 125 14.9 13.4 111 HOBBS PARK 10100 9.3 9.2 101 8.4 7.6 111 LITTLE WARM 9370 7.8 7.1 110 7.9 8.5 93 SOUTH PASS 9040 11.3 10.4 109 9.9 11.2 88 ST. LAWRENCE ALT 8620 3.7 4.5 82 4.5 5.3 85 TOGWOTEE PASS 9580 19.3 15.3 126 20.4 15.4 132 TOWNSEND CREEK 8700 5.2 5.2 100 7.0 6.9 101 ----- ----- Basin wide percent of average 111 104 BIGHORN BASIN BALD MTN. 9380 14.5 12.4 117 12.4 10.9 114 BEAR TRAP MEADOW 8200 4.9 3.2 153 5.5 5.2 106 BLACKWATER 9780 17.4 15.0 116 16.8 13.1 128 BONE SPRINGS DIV 9350 11.8 9.8 120 10.3 8.9 116 EVENING STAR 9200 21.6 18.0 120 23.5 16.3 144 GRAVE SPRINGS 8550 4.5 5.3 85 4.9 6.1 80 KIRWIN 9550 7.7 7.2 107 8.5 7.1 120 MARQUETTE 8760 1.8 5.6 32 4.3 5.9 73 MIDDLE POWDER 7760 6.1 6.7 91 3.9 7.8 50 OWL CREEK 8975 3.0 3.2 94 3.2 3.4 94 POWDER RIVER PASS 9480 -M 6.7 * -M 7.6 * SHELL CREEK 9580 10.8 9.1 119 9.8 8.5 115 SYLVAN LAKE 8420 15.5 13.7 113 18.7 13.6 138 SYLVAN ROAD 7120 10.6 8.1 131 13.8 12.4 111 TIMBER CREEK 7950 2.6 3.4 76 3.1 4.2 74 YOUNTS PEAK 8350 11.6 10.8 107 9.9 10.5 94 ----- ----- Basin wide percent of average 110 111 SHOSHONE RIVER BLACKWATER 9780 17.4 15.0 116 16.8 13.1 128 EVENING STAR 9200 21.6 18.0 120 23.5 16.3 144 KIRWIN 9550 7.7 7.2 107 8.5 7.1 120 MARQUETTE 8760 1.8 5.6 32 4.3 5.9 73 SYLVAN LAKE 8420 15.5 13.7 113 18.7 13.6 138 SYLVAN ROAD 7120 10.6 8.1 131 13.8 12.4 111 YOUNTS PEAK 8350 11.6 10.8 107 9.9 10.5 94 ----- ----- Basin wide percent of average 110 121 POWDER-TONGUE BEAR TRAP MEADOW 8200 4.9 3.2 153 5.5 5.2 106 BIG GOOSE 7990 4.4 5.5 80 6.0 5.0 120 BONE SPRINGS DIV 9350 11.8 9.8 120 10.3 8.9 116 BURGESS JUNCTION 7880 5.3 6.8 78 6.5 7.3 89 CLOUD PEAK RESERVOIR 9860 9.0 7.4 122 8.9 7.7 116 DOME LAKE 8880 6.6 7.4 89 7.8 8.1 96 GRAVE SPRINGS 8550 4.5 5.3 85 4.9 6.1 80 HANSEN SAWMILL 8360 4.4 3.9 113 4.7 5.0 94 LITTLE GOOSE 8870 5.2 -M * 9.0 -M * MIDDLE POWDER 7760 6.1 6.7 91 3.9 7.8 50 POWDER RIVER PASS 9480 -M 6.7 * -M 7.6 * SOLDIER PARK 8720 4.0 -M * 5.5 -M * SUCKER CREEK 8880 7.2 6.6 109 8.0 8.1 99 TIE CREEK 6870 3.4 3.7 92 5.4 6.3 86 ----- ----- Basin wide percent of average 102 95 BELLE FOURCHE BLIND PARK 6890 5.3 4.8 110 11.0 7.3 151 COLE CANYON 5910 4.9 4.1 120 7.7 4.4 175 NORTH RAPID CREEK 6130 5.3 4.4 120 9.4 6.0 157 ----- ----- Basin wide percent of average 117 159 UPPER N. PLATTE RIVER CINNABAR PARK 9574 17.2 12.4 139 20.1 13.5 149 COLUMBINE 9160 20.7 14.3 145 23.0 15.2 151 DIVIDE PEAK 8880 14.0 11.9 118 17.5 12.6 139 ELK RIVER 8700 15.0 10.6 142 17.3 11.6 149 JOE WRIGHT 10120 17.0 12.5 136 22.8 14.9 153 NORTH FRENCH CREEK 10130 27.9 16.9 165 26.9 15.1 178 OLD BATTLE 10000 28.1 18.2 154 26.7 20.5 130 SAGE CREEK BASIN 7850 12.0 6.9 174 12.6 7.3 173 SOUTH BRUSH CREEK 8440 11.1 6.7 166 14.2 9.9 143 TOWER 10500 35.7 27.0 132 35.2 23.2 152 WEBBER SPRINGS 9250 19.2 14.5 132 23.8 16.7 143 WILLOW CREEK PASS 9540 11.1 6.9 161 11.7 7.7 152 ----- ----- Basin wide percent of average 144 150 LOWER N. PLATTE - SWEETWATER - LARAMIE BROOKLYN LAKE 10240 19.4 13.9 140 20.2 13.1 154 CASPER MTN. 7900 7.1 8.3 86 9.6 8.4 114 DEADMAN HILL 10220 8.9 9.7 92 14.5 9.8 148 DEER PARK 9700 13.8 11.0 125 14.9 13.4 111 LAPRELE CREEK 8375 7.1 6.7 106 8.3 7.6 109 RENO HILL 8400 8.5 7.9 108 10.4 8.7 120 ROACH 9700 13.1 9.8 134 16.3 10.7 152 SAND LAKE 10050 23.1 18.4 126 21.8 14.7 148 SOUTH PASS 9040 11.3 10.4 109 9.9 11.2 88 WINDY PEAK 7900 5.7 4.1 139 8.1 6.5 125 ----- ----- Basin wide percent of average 118 129 LITTLE SNAKE RIVER BATTLE MOUNTAIN 7440 6.4 6.7 96 10.0 9.1 110 DIVIDE PEAK 8880 14.0 11.9 118 17.5 12.6 139 OLD BATTLE 10000 28.1 18.2 154 26.7 20.5 130 SANDSTONE RS 8150 8.8 8.3 106 16.9 11.5 147 WHISKEY PARK 8950 -M 16.2 * 25.7 17.8 144 ----- ----- Basin wide percent of average 127 135 UPPER GREEN RIVER BIG SANDY OPENING 9080 9.8 8.7 113 10.3 8.3 124 BLIND BULL SUM 8650 20.0 16.8 119 14.6 14.1 104 EAST RIM DIVIDE 7930 9.4 7.6 124 8.8 7.4 119 ELKHART PARK G.S. 9400 8.6 8.0 108 8.9 8.3 107 GROS VENTRE SUMMIT 8750 10.0 8.7 115 9.8 8.0 123 GUNSIGHT PASS 9820 11.2 -M * 11.4 -M * KENDALL R.S. 7740 8.7 8.9 98 10.4 8.9 117 LOOMIS PARK 8240 12.5 10.2 123 13.6 10.8 126 NEW FORK LAKE 8340 8.3 6.9 120 7.8 7.3 107 POCKET CREEK 9360 7.8 -M * 9.7 -M * SNIDER BASIN 8060 13.8 8.8 157 13.7 10.2 134 SPRING CREEK DIVIDE 9000 23.4 15.8 148 23.0 16.9 136 TRIPLE PEAK 8500 20.6 15.2 136 22.3 14.8 151 ----- ----- Basin wide percent of average 126 125 LOWER GREEN RIVER HAMS FORK 7840 10.7 7.5 143 10.8 7.7 140 HEWINTA 9519 6.9 5.8 119 11.0 8.5 129 HICKERSON PARK 9145 3.7 3.9 95 5.7 4.9 116 HOLE-IN-ROCK 9150 4.3 3.6 119 5.9 4.5 131 INDIAN CREEK 9425 21.4 16.0 134 19.6 15.5 126 KELLEY R.S. 8180 14.1 9.6 147 16.8 12.8 131 STEEL CREEK PARK 10200 10.3 8.4 123 13.3 9.3 143 ----- ----- Basin wide percent of average 130 131 UPPER BEAR RIVER BUG LAKE 7950 18.1 11.7 155 19.6 11.8 166 HAYDEN FORK 9212 13.0 8.7 149 20.1 12.5 161 KELLEY R.S. 8180 14.1 9.6 147 16.8 12.8 131 LILY LAKE 9156 11.5 7.3 158 14.7 10.6 139 MONTE CRISTO 8960 22.1 15.8 140 24.2 15.3 158 SALT RIVER SUMMIT 7760 11.3 8.0 141 15.2 11.6 131 TRIAL LAKE 9992 23.4 14.0 167 24.1 14.5 166 ----- ----- Basin wide percent of average 151 151 ----------------------------------------------------------------------------- -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.