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 MONDAY: NOVEMBER 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 .8 1.1 73* 4.2 2.7 156 COTTONWOOD CREEK 7670 .5 1.5 33* 5.1 4.0 128 GRAND TARGHEE 9260 3.9 -M * 6.6 -M * GRANITE CREEK 6770 .3 .9 33* 2.7 2.4 113 GRASSY LAKE 7265 1.8 2.4 75* 6.1 4.4 139 GROS VENTRE SUMMIT 8750 .7 1.8 39 2.5 2.3 109 GUNSIGHT PASS 9820 1.1 -M * 2.9 -M * LEWIS LAKE DIVIDE 7850 .9 2.2 41* 5.2 4.3 121 PHILLIPS BENCH 8200 .0 2.2 0* 2.7 3.2 84 SALT RIVER SUMMIT 7760 .5 .7 71* 2.3 2.5 92 SNAKE RIVER STATION 6920 .5 1.1 45* 4.4 3.0 147 SPRING CREEK DIVIDE 9000 1.6 2.3 70* 3.6 3.4 106 THUMB DIVIDE 7980 .4 1.3 31* 3.3 2.6 127 TOGWOTEE PASS 9580 2.0 3.4 59 4.0 3.6 111 TWO OCEAN PLATEAU 9240 5.2 4.1 127 4.6 4.0 115 WILLOW CREEK 8380 .7 2.8 25* 5.9 4.7 126 ----- ----- Basin wide percent of average 57* 120 UPPER YELLOWSTONE-MADISON BEARTOOTH LAKE 9360 3.8 3.6 106 4.3 2.8 154 BLACK BEAR 8170 3.6 3.8 95* 6.7 4.8 140 CANYON 7870 .9 1.1 82* 2.8 2.4 117 FISHER CREEK 9100 3.3 3.9 85 5.8 4.5 129 MADISON PLATEAU 7750 1.3 2.3 57* 5.2 3.3 158 NORTHEAST ENTRANCE 7350 .4 .6 67* 2.6 2.0 130 PARKER PEAK 9400 3.3 3.4 97 5.3 2.9 183 SYLVAN LAKE 8420 1.6 2.8 57 5.5 3.4 162 THUMB DIVIDE 7980 .4 1.3 31* 3.3 2.6 127 TWO OCEAN PLATEAU 9240 5.2 4.1 127 4.6 4.0 115 WHISKEY CREEK 6800 .9 1.2 75* 4.3 2.9 148 WHITE MILL 8700 1.9 2.8 68 4.4 3.5 126 WOLVERINE 7650 1.1 .9 122* 3.8 2.3 165 ----- ----- Basin wide percent of average 87* 142 WIND RIVER BURROUGHS CREEK 8750 .7 1.5 47* 1.7 2.2 77 CASTLE CREEK 8400 .7 -M * 1.6 -M * COLD SPRINGS 9630 .9 1.5 60 2.1 2.5 84 DEER PARK 9700 1.5 3.2 47 3.4 3.5 97 HOBBS PARK 10100 2.8 2.8 100 3.1 2.7 115 LITTLE WARM 9370 .2 1.5 13 1.9 2.3 83 SOUTH PASS 9040 1.1 2.2 50 2.7 2.9 93 ST. LAWRENCE ALT 8620 .2 1.3 15 1.6 2.2 73 TOGWOTEE PASS 9580 2.0 3.4 59 4.0 3.6 111 TOWNSEND CREEK 8700 .8 1.5 53 3.3 2.7 122 ----- ----- Basin wide percent of average 54 97 BIGHORN BASIN BALD MTN. 9380 4.7 3.5 134 4.6 3.0 153 BEAR TRAP MEADOW 8200 .3 .8 38 2.1 2.2 95 BLACKWATER 9780 4.4 3.9 113 4.6 3.5 131 BONE SPRINGS DIV 9350 4.8 3.3 145 5.1 3.1 165 EVENING STAR 9200 3.1 3.8 82 6.1 3.8 161 GRAVE SPRINGS 8550 .5 1.6 31 2.7 2.4 113 KIRWIN 9550 2.4 2.5 96 3.6 2.4 150 MARQUETTE 8760 .7 -M * 4.0 2.8 143 MIDDLE POWDER 7760 1.1 1.8 61 4.6 3.2 144 OWL CREEK 8975 1.0 1.1 91 1.7 1.5 113 POWDER RIVER PASS 9480 2.4 1.7 141 3.6 2.4 150 SHELL CREEK 9580 5.1 3.3 155 4.7 2.6 181 SYLVAN LAKE 8420 1.6 2.8 57 5.5 3.4 162 SYLVAN ROAD 7120 .8 1.0 80* 3.1 2.8 111 TIMBER CREEK 7950 .6 1.5 40 4.1 2.0 205 YOUNTS PEAK 8350 1.2 2.1 57 2.9 2.5 116 ----- ----- Basin wide percent of average 98 144 SHOSHONE RIVER BLACKWATER 9780 4.4 3.9 113 4.6 3.5 131 EVENING STAR 9200 3.1 3.8 82 6.1 3.8 161 KIRWIN 9550 2.4 2.5 96 3.6 2.4 150 MARQUETTE 8760 .7 -M * 4.0 2.8 143 SYLVAN LAKE 8420 1.6 2.8 57 5.5 3.4 162 SYLVAN ROAD 7120 .8 1.0 80* 3.1 2.8 111 YOUNTS PEAK 8350 1.2 2.1 57 2.9 2.5 116 ----- ----- Basin wide percent of average 84 141 POWDER-TONGUE BEAR TRAP MEADOW 8200 .3 .8 38 2.1 2.2 95 BIG GOOSE 7990 2.2 1.1 200* 5.7 2.4 238 BONE SPRINGS DIV 9350 4.8 3.3 145 5.1 3.1 165 BURGESS JUNCTION 7880 2.3 2.1 110 5.1 2.7 189 CLOUD PEAK RESERVOIR 9860 2.8 2.1 133 4.6 3.2 144 DOME LAKE 8880 3.4 2.5 136 6.2 3.1 200 GRAVE SPRINGS 8550 .5 1.6 31 2.7 2.4 113 HANSEN SAWMILL 8360 .9 1.2 75 2.7 2.2 123 LITTLE GOOSE 8870 2.7 -M * 6.3 -M * MIDDLE POWDER 7760 1.1 1.8 61 4.6 3.2 144 POWDER RIVER PASS 9480 2.4 1.7 141 3.6 2.4 150 SOLDIER PARK 8720 .2 -M * 3.6 -M * SUCKER CREEK 8880 3.9 1.8 217 5.2 2.9 179 TIE CREEK 6870 .9 1.1 82 5.7 2.9 197 ----- ----- Basin wide percent of average 121 163 BELLE FOURCHE BLIND PARK 6890 .3 1.2 25 1.4 3.1 45 COLE CANYON 5910 .0 1.2 0 1.5 2.1 71 NORTH RAPID CREEK 6130 .6 .7 86* .8 2.9 28 ----- ----- Basin wide percent of average 29 46 UPPER N. PLATTE RIVER BLACKHALL MTN 9820 3.1 -M * 4.7 -M * CINNABAR PARK 9574 1.6 2.3 70 4.1 3.4 121 COLUMBINE 9160 1.1 1.6 69* 3.6 3.1 116 DIVIDE PEAK 8880 2.0 2.4 83 4.9 3.4 144 ELK RIVER 8700 .6 1.0 60* 2.9 2.8 104 JOE WRIGHT 10120 1.5 3.5 43 5.2 4.3 121 NORTH FRENCH CREEK 10130 3.1 4.1 76 4.4 4.3 102 OLD BATTLE 10000 3.5 4.2 83 4.9 4.6 107 SAGE CREEK BASIN 7850 1.0 1.4 71 2.8 2.0 140 SOUTH BRUSH CREEK 8440 .7 1.1 64* 3.3 3.2 103 TOWER 10500 3.9 5.3 74 5.0 5.3 94 WEBBER SPRINGS 9250 1.5 2.8 54 4.5 4.0 113 WILLOW CREEK PASS 9540 1.3 1.7 76 2.8 2.5 112 ----- ----- Basin wide percent of average 69 113 LOWER N. PLATTE - SWEETWATER - LARAMIE BROOKLYN LAKE 10240 1.2 2.9 41 3.7 3.2 116 CASPER MTN. 7900 2.6 2.4 108 6.4 3.2 200 DEADMAN HILL 10220 3.6 2.9 124 4.4 3.1 142 DEER PARK 9700 1.5 3.2 47 3.4 3.5 97 LAPRELE CREEK 8375 1.4 1.5 93 3.8 2.5 152 RENO HILL 8400 3.1 2.2 141 4.9 3.2 153 ROACH 9700 2.4 1.8 133* 4.2 2.9 145 SAND LAKE 10050 4.2 4.5 93 5.0 3.9 128 SOUTH PASS 9040 1.1 2.2 50 2.7 2.9 93 WINDY PEAK 7900 1.4 .9 156 2.9 2.2 132 ----- ----- Basin wide percent of average 92 135 LITTLE SNAKE RIVER BATTLE MOUNTAIN 7440 1.0 .8 125* 2.6 2.4 108 DIVIDE PEAK 8880 2.0 2.4 83 4.9 3.4 144 OLD BATTLE 10000 3.5 4.2 83 4.9 4.6 107 SANDSTONE RS 8150 .1 .8 13* 2.6 3.0 87 WHISKEY PARK 8950 1.1 2.5 44* 4.3 3.8 113 ----- ----- Basin wide percent of average 72* 112 UPPER GREEN RIVER BIG SANDY OPENING 9080 1.3 1.7 76 2.4 2.3 104 BLIND BULL SUM 8650 .8 2.6 31* 2.3 2.9 79 EAST RIM DIVIDE 7930 .6 1.0 60* 2.2 1.8 122 ELKHART PARK G.S. 9400 1.2 1.3 92* 3.2 2.5 128 GROS VENTRE SUMMIT 8750 .7 1.8 39 2.5 2.3 109 GUNSIGHT PASS 9820 1.1 -M * 2.9 -M * KENDALL R.S. 7740 .6 1.1 55* 2.5 2.1 119 LOOMIS PARK 8240 .3 1.5 20* 2.7 2.4 113 NEW FORK LAKE 8340 1.1 .9 122* 2.8 2.0 140 POCKET CREEK 9360 2.0 -M * 3.1 -M * SNIDER BASIN 8060 .2 1.2 17* 1.6 2.2 73 SPRING CREEK DIVIDE 9000 1.6 2.3 70* 3.6 3.4 106 TRIPLE PEAK 8500 1.1 2.0 55* 3.2 3.0 107 ----- ----- Basin wide percent of average 55* 108 LOWER GREEN RIVER HAMS FORK 7840 .2 .7 29* 2.6 1.8 144 HEWINTA 9519 .0 1.1 0* 3.6 2.9 124 HICKERSON PARK 9145 1.1 .7 157* 4.8 2.1 229 HOLE-IN-ROCK 9150 1.2 .7 171* 4.4 2.0 220 INDIAN CREEK 9425 1.8 2.4 75* 3.4 3.4 100 KELLEY R.S. 8180 .8 1.5 53* 3.1 2.8 111 STEEL CREEK PARK 10200 1.3 2.1 62 4.3 3.0 143 ----- ----- Basin wide percent of average 70* 146 UPPER BEAR RIVER BUG LAKE 7950 .3 1.7 18* 2.7 3.0 90 HAYDEN FORK 9212 .7 1.2 58* 4.8 3.1 155 KELLEY R.S. 8180 .8 1.5 53* 3.1 2.8 111 LILY LAKE 9156 .4 1.3 31* 3.5 3.1 113 MONTE CRISTO 8960 1.1 2.2 50* 3.3 3.6 92 SALT RIVER SUMMIT 7760 .5 .7 71* 2.3 2.5 92 TRIAL LAKE 9992 2.0 2.6 77* 2.9 3.5 83 ----- ----- Basin wide percent of average 52* 105 ----------------------------------------------------------------------------- -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.