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 TUESDAY: NOVEMBER 10 , 2009 ----------------------------------------------------------------------------- BASIN ELEV. SNOW WATER EQUIVALENT TOTAL PRECIPITATION Data Site Name (Ft) % % Current Average Avg Current Average Avg ----------------------------------------------------------------------------- WYOMING SNAKE RIVER BASE CAMP 7030 .7 1.3 54 3.1 2.9 107 COTTONWOOD CREEK 7670 -M 1.7 * -M 4.2 * GRAND TARGHEE 9260 6.5 -M * 6.0 -M * GRANITE CREEK 6770 .0 1.0 0 2.6 2.6 100 GRASSY LAKE 7265 1.8 2.7 67 4.3 4.8 90 GROS VENTRE SUMMIT 8750 2.1 2.0 105 2.3 2.5 92 GUNSIGHT PASS 9820 1.7 -M * 3.1 -M * LEWIS LAKE DIVIDE 7850 -M 2.6 * -M 4.6 * PHILLIPS BENCH 8200 1.4 2.5 56 3.4 3.5 97 SALT RIVER SUMMIT 7760 .1 .8 12 2.5 2.7 93 SNAKE RIVER STATION 6920 .5 1.2 42 3.8 3.2 119 SPRING CREEK DIVIDE 9000 3.3 2.6 127 4.1 3.7 111 THUMB DIVIDE 7980 1.2 1.5 80 4.3 2.8 154 TOGWOTEE PASS 9580 4.2 3.7 114 4.4 3.9 113 TWO OCEAN PLATEAU 9240 5.5 4.4 125 4.2 4.3 98 WILLOW CREEK 8380 1.6 3.2 50 5.6 5.1 110 ----- ----- Basin wide percent of average 83 106 UPPER YELLOWSTONE-MADISON BEARTOOTH LAKE 9360 4.2 3.9 108 3.5 3.0 117 BLACK BEAR 8170 4.7 4.2 112 6.1 5.2 117 CANYON 7870 1.6 1.3 123 3.2 2.6 123 FISHER CREEK 9100 5.7 4.3 133 6.2 4.8 129 MADISON PLATEAU 7750 2.4 2.5 96 5.3 3.5 151 NORTHEAST ENTRANCE 7350 .2 .8 25 3.0 2.1 143 PARKER PEAK 9400 4.9 3.7 132 3.9 3.1 126 SYLVAN LAKE 8420 1.7 3.1 55 3.5 3.6 97 THUMB DIVIDE 7980 1.2 1.5 80 4.3 2.8 154 TWO OCEAN PLATEAU 9240 5.5 4.4 125 4.2 4.3 98 WHISKEY CREEK 6800 .1 1.5 7 3.2 3.1 103 WHITE MILL 8700 4.6 3.2 144 4.4 3.8 116 WOLVERINE 7650 .0 1.1 0 2.4 2.5 96 ----- ----- Basin wide percent of average 104 120 WIND RIVER BURROUGHS CREEK 8750 3.0 1.7 176 2.9 2.4 121 COLD SPRINGS 9630 2.3 1.7 135 3.0 2.6 115 DEER PARK 9700 4.5 3.5 129 5.7 3.8 150 HOBBS PARK 10100 4.9 3.0 163 4.9 2.9 169 LITTLE WARM 9370 1.8 1.7 106 2.5 2.5 100 SOUTH PASS 9040 3.8 2.5 152 4.9 3.1 158 ST. LAWRENCE ALT 8620 1.8 1.4 129 3.8 2.3 165 TOGWOTEE PASS 9580 4.2 3.7 114 4.4 3.9 113 TOWNSEND CREEK 8700 3.2 1.6 200 4.9 2.8 175 ----- ----- Basin wide percent of average 142 141 BIGHORN BASIN BALD MTN. 9380 4.1 3.8 108 3.5 3.2 109 BEAR TRAP MEADOW 8200 1.2 .9 133 2.2 2.3 96 BLACKWATER 9780 5.5 4.2 131 4.7 3.7 127 BONE SPRINGS DIV 9350 3.3 3.6 92 3.2 3.2 100 EVENING STAR 9200 5.0 4.2 119 6.1 4.1 149 GRAVE SPRINGS 8550 2.5 1.7 147 3.7 2.5 148 KIRWIN 9550 3.2 2.6 123 2.6 2.5 104 MARQUETTE 8760 2.9 2.5 116 3.2 2.9 110 MIDDLE POWDER 7760 2.4 1.9 126 3.2 3.4 94 OWL CREEK 8975 2.4 1.2 200 2.0 1.5 133 POWDER RIVER PASS 9480 2.1 2.0 105 2.5 2.5 100 SHELL CREEK 9580 3.6 3.5 103 3.2 2.7 119 SYLVAN LAKE 8420 1.7 3.1 55 3.5 3.6 97 SYLVAN ROAD 7120 .7 1.2 58 3.0 3.1 97 TIMBER CREEK 7950 .9 1.5 60 2.5 2.1 119 YOUNTS PEAK 8350 2.8 2.3 122 2.4 2.7 89 ----- ----- Basin wide percent of average 110 112 SHOSHONE RIVER BLACKWATER 9780 5.5 4.2 131 4.7 3.7 127 EVENING STAR 9200 5.0 4.2 119 6.1 4.1 149 KIRWIN 9550 3.2 2.6 123 2.6 2.5 104 MARQUETTE 8760 2.9 2.5 116 3.2 2.9 110 SYLVAN LAKE 8420 1.7 3.1 55 3.5 3.6 97 SYLVAN ROAD 7120 .7 1.2 58 3.0 3.1 97 YOUNTS PEAK 8350 2.8 2.3 122 2.4 2.7 89 ----- ----- Basin wide percent of average 108 113 POWDER-TONGUE BEAR TRAP MEADOW 8200 1.2 .9 133 2.2 2.3 96 BIG GOOSE 7990 1.7 1.2 142 3.3 2.4 138 BONE SPRINGS DIV 9350 3.3 3.6 92 3.2 3.2 100 BURGESS JUNCTION 7880 2.9 2.3 126 3.8 2.8 136 CLOUD PEAK RESERVOIR 9860 3.5 2.3 152 3.5 3.4 103 DOME LAKE 8880 2.3 2.8 82 3.4 3.2 106 GRAVE SPRINGS 8550 2.5 1.7 147 3.7 2.5 148 HANSEN SAWMILL 8360 1.2 1.3 92 2.2 2.3 96 MIDDLE POWDER 7760 2.4 1.9 126 3.2 3.4 94 POWDER RIVER PASS 9480 2.1 2.0 105 2.5 2.5 100 SUCKER CREEK 8880 3.6 1.9 189 4.3 3.1 139 TIE CREEK 6870 .0 1.3 0 4.0 2.9 138 ----- ----- Basin wide percent of average 115 116 BELLE FOURCHE BLIND PARK 6890 1.0 1.3 77 4.1 3.2 128 COLE CANYON 5910 .0 1.3 0 4.1 2.2 186 NORTH RAPID CREEK 6130 1.0 .8 125 4.0 3.0 133 ----- ----- Basin wide percent of average 59 145 UPPER N. PLATTE RIVER COLUMBINE 9160 .8 1.8 44 3.9 3.3 118 DIVIDE PEAK 8880 2.4 2.6 92 5.4 3.6 150 ELK RIVER 8700 .0 1.1 0 3.2 3.0 107 JOE WRIGHT 10120 3.4 3.7 92 4.8 4.6 104 NORTH FRENCH CREEK 10130 7.0 4.4 159 7.3 4.5 162 OLD BATTLE 10000 7.3 4.5 162 7.7 5.0 154 SAGE CREEK BASIN 7850 1.2 1.5 80 2.8 2.1 133 SOUTH BRUSH CREEK 8440 .9 1.2 75 4.2 3.4 124 TOWER 10500 7.1 5.9 120 7.4 5.6 132 WEBBER SPRINGS 9250 3.2 3.1 103 6.2 4.3 144 WILLOW CREEK PASS 9540 .7 1.9 37 3.0 2.7 111 ----- ----- Basin wide percent of average 107 133 LOWER N. PLATTE - SWEETWATER - LARAMIE BROOKLYN LAKE 10240 4.7 3.1 152 5.7 3.5 163 CASPER MTN. 7900 3.0 2.5 120 3.9 3.4 115 DEADMAN HILL 10220 1.1 3.1 35 4.7 3.2 147 DEER PARK 9700 4.5 3.5 129 5.7 3.8 150 LAPRELE CREEK 8375 1.4 1.6 87 3.6 2.6 138 RENO HILL 8400 3.5 2.4 146 4.8 3.3 145 ROACH 9700 3.4 2.0 170 5.1 3.1 165 SAND LAKE 10050 7.6 4.8 158 7.9 4.2 188 SOUTH PASS 9040 3.8 2.5 152 4.9 3.1 158 WINDY PEAK 7900 1.4 1.0 140 3.7 2.3 161 ----- ----- Basin wide percent of average 130 154 LITTLE SNAKE RIVER BATTLE MOUNTAIN 7440 .0 .9 0 2.0 2.6 77 DIVIDE PEAK 8880 2.4 2.6 92 5.4 3.6 150 OLD BATTLE 10000 7.3 4.5 162 7.7 5.0 154 SANDSTONE RS 8150 .0 .9 0 2.5 3.2 78 WHISKEY PARK 8950 2.3 2.8 82 5.9 4.1 144 ----- ----- Basin wide percent of average 103 127 UPPER GREEN RIVER BIG SANDY OPENING 9080 2.9 1.9 153 3.2 2.5 128 BLIND BULL SUM 8650 2.6 2.9 90 2.4 3.2 75 EAST RIM DIVIDE 7930 .1 1.2 8 1.9 1.9 100 ELKHART PARK G.S. 9400 2.3 1.5 153 2.8 2.6 108 GROS VENTRE SUMMIT 8750 2.1 2.0 105 2.3 2.5 92 GUNSIGHT PASS 9820 1.7 -M * 3.1 -M * KENDALL R.S. 7740 .2 1.2 17 2.0 2.2 91 LOOMIS PARK 8240 .4 1.7 24 2.5 2.6 96 NEW FORK LAKE 8340 .3 1.0 30 1.7 2.2 77 SNIDER BASIN 8060 1.1 1.4 79 2.7 2.3 117 SPRING CREEK DIVIDE 9000 3.3 2.6 127 4.1 3.7 111 TRIPLE PEAK 8500 3.7 2.3 161 4.5 3.2 141 ----- ----- Basin wide percent of average 96 104 LOWER GREEN RIVER HAMS FORK 7840 .2 .8 25 3.1 2.0 155 HEWINTA 9519 .3 1.2 25 2.1 3.1 68 HICKERSON PARK 9145 1.2 .7 171 3.4 2.2 155 HOLE-IN-ROCK 9150 1.1 .8 138 3.7 2.1 176 INDIAN CREEK 9425 4.4 2.7 163 4.9 3.7 132 KELLEY R.S. 8180 1.4 1.7 82 3.7 3.0 123 STEEL CREEK PARK 10200 1.5 2.2 68 3.1 3.2 97 ----- ----- Basin wide percent of average 100 124 UPPER BEAR RIVER BUG LAKE 7950 .0 1.9 0 3.4 3.2 106 HAYDEN FORK 9212 .2 1.4 14 2.9 3.4 85 KELLEY R.S. 8180 1.4 1.7 82 3.7 3.0 123 LILY LAKE 9156 1.0 1.4 71 2.3 3.3 70 MONTE CRISTO 8960 1.5 2.4 62 4.1 3.9 105 SALT RIVER SUMMIT 7760 .1 .8 12 2.5 2.7 93 TRIAL LAKE 9992 2.1 2.8 75 3.0 3.8 79 ----- ----- Basin wide percent of average 51 94 ----------------------------------------------------------------------------- -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 1961-90. 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.