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 FRIDAY: DECEMBER 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 5.0 4.2 119 8.6 6.2 139 COTTONWOOD CREEK 7670 3.4 4.8 71 8.1 8.2 99 GRAND TARGHEE 9260 10.3 -M * 9.5 -M * GRANITE CREEK 6770 3.5 3.6 97 5.3 5.5 96 GRASSY LAKE 7265 5.3 7.9 67 10.3 9.9 104 GROS VENTRE SUMMIT 8750 2.9 4.0 72 4.2 4.3 98 GUNSIGHT PASS 9820 3.8 -M * 5.1 -M * LEWIS LAKE DIVIDE 7850 6.3 7.9 80 11.1 10.1 110 PHILLIPS BENCH 8200 4.6 6.6 70 7.1 7.6 93 SALT RIVER SUMMIT 7760 2.1 2.7 78 3.9 5.1 76 SNAKE RIVER STATION 6920 4.2 4.2 100 8.6 6.6 130 SPRING CREEK DIVIDE 9000 5.0 7.0 71 6.6 7.5 88 THUMB DIVIDE 7980 4.2 4.1 102 6.9 5.5 125 TOGWOTEE PASS 9580 6.3 7.2 88 8.1 7.4 109 TWO OCEAN PLATEAU 9240 11.0 8.5 129 9.6 8.4 114 WILLOW CREEK 8380 5.2 7.9 66 10.6 9.6 110 ----- ----- Basin wide percent of average 86 107 UPPER YELLOWSTONE-MADISON BEARTOOTH LAKE 9360 7.5 7.2 104 7.9 6.0 132 BLACK BEAR 8170 9.0 9.9 91 11.5 10.7 107 CANYON 7870 3.2 3.4 94 5.2 4.9 106 FISHER CREEK 9100 10.1 9.6 105 11.9 10.0 119 MADISON PLATEAU 7750 6.0 6.4 94 9.9 7.4 134 NORTHEAST ENTRANCE 7350 2.0 2.6 77 4.3 4.1 105 PARKER PEAK 9400 7.3 6.9 106 9.3 5.6 166 SYLVAN LAKE 8420 4.9 6.7 73 9.1 7.2 126 THUMB DIVIDE 7980 4.2 4.1 102 6.9 5.5 125 TWO OCEAN PLATEAU 9240 11.0 8.5 129 9.6 8.4 114 WHISKEY CREEK 6800 4.3 4.0 108 7.8 6.0 130 WHITE MILL 8700 5.6 6.8 82 7.9 7.9 100 WOLVERINE 7650 4.3 3.0 143 6.0 4.6 130 ----- ----- Basin wide percent of average 100 122 WIND RIVER BURROUGHS CREEK 8750 3.5 3.9 90 4.5 5.0 90 CASTLE CREEK 8400 1.9 -M * 3.0 -M * COLD SPRINGS 9630 2.7 3.2 84 4.1 4.3 95 DEER PARK 9700 3.1 4.6 67 6.2 7.2 86 HOBBS PARK 10100 5.4 5.3 102 5.3 4.7 113 LITTLE WARM 9370 2.1 3.5 60 4.4 4.7 94 SOUTH PASS 9040 3.9 5.0 78 5.2 6.1 85 ST. LAWRENCE ALT 8620 1.4 2.7 52 3.0 3.6 83 TOGWOTEE PASS 9580 6.3 7.2 88 8.1 7.4 109 TOWNSEND CREEK 8700 2.3 3.0 77 4.6 4.6 100 ----- ----- Basin wide percent of average 80 95 BIGHORN BASIN BALD MTN. 9380 6.9 6.1 113 6.7 5.4 124 BEAR TRAP MEADOW 8200 1.9 1.7 112 3.8 3.4 112 BLACKWATER 9780 9.8 8.0 122 9.4 7.4 127 BONE SPRINGS DIV 9350 7.3 5.4 135 7.3 5.0 146 EVENING STAR 9200 8.2 8.8 93 11.1 8.4 132 GRAVE SPRINGS 8550 2.4 2.7 89 4.5 3.6 125 KIRWIN 9550 5.3 4.2 126 6.7 4.2 160 MARQUETTE 8760 1.7 -M * 6.2 4.1 151 MIDDLE POWDER 7760 3.4 3.6 94 6.7 5.0 134 OWL CREEK 8975 1.8 1.9 95 2.9 2.2 132 POWDER RIVER PASS 9480 4.2 3.4 124 5.6 4.2 133 SHELL CREEK 9580 7.3 5.2 140 6.7 4.6 146 SYLVAN LAKE 8420 4.9 6.7 73 9.1 7.2 126 SYLVAN ROAD 7120 3.5 3.7 95 6.2 6.7 93 TIMBER CREEK 7950 2.1 2.4 88 5.5 3.0 183 YOUNTS PEAK 8350 4.9 4.8 102 6.2 5.3 117 ----- ----- Basin wide percent of average 108 131 SHOSHONE RIVER BLACKWATER 9780 9.8 8.0 122 9.4 7.4 127 EVENING STAR 9200 8.2 8.8 93 11.1 8.4 132 KIRWIN 9550 5.3 4.2 126 6.7 4.2 160 MARQUETTE 8760 1.7 -M * 6.2 4.1 151 SYLVAN LAKE 8420 4.9 6.7 73 9.1 7.2 126 SYLVAN ROAD 7120 3.5 3.7 95 6.2 6.7 93 YOUNTS PEAK 8350 4.9 4.8 102 6.2 5.3 117 ----- ----- Basin wide percent of average 101 127 POWDER-TONGUE BEAR TRAP MEADOW 8200 1.9 1.7 112 3.8 3.4 112 BIG GOOSE 7990 3.9 2.4 162 7.7 3.1 248 BONE SPRINGS DIV 9350 7.3 5.4 135 7.3 5.0 146 BURGESS JUNCTION 7880 4.4 3.5 126 7.3 4.3 170 CLOUD PEAK RESERVOIR 9860 5.8 3.9 149 7.4 5.0 148 DOME LAKE 8880 5.2 4.2 124 8.3 5.0 166 GRAVE SPRINGS 8550 2.4 2.7 89 4.5 3.6 125 HANSEN SAWMILL 8360 2.5 2.1 119 4.3 3.2 134 LITTLE GOOSE 8870 4.8 -M * 8.6 -M * MIDDLE POWDER 7760 3.4 3.6 94 6.7 5.0 134 POWDER RIVER PASS 9480 4.2 3.4 124 5.6 4.2 133 SOLDIER PARK 8720 3.7 -M * 5.6 -M * SUCKER CREEK 8880 6.1 3.3 185 7.3 4.6 159 TIE CREEK 6870 2.3 1.2 192 7.5 3.7 203 ----- ----- Basin wide percent of average 132 155 BELLE FOURCHE BLIND PARK 6890 2.1 2.0 105 2.9 4.6 63 COLE CANYON 5910 1.4 2.2 64 3.1 3.0 103 NORTH RAPID CREEK 6130 2.5 1.8 139 2.5 3.8 66 ----- ----- Basin wide percent of average 100 75 UPPER N. PLATTE RIVER BLACKHALL MTN 9820 -M -M * -M -M * CINNABAR PARK 9574 4.6 5.7 81 7.4 6.9 107 COLUMBINE 9160 4.8 5.1 94 6.9 6.5 106 DIVIDE PEAK 8880 5.4 5.2 104 8.7 6.3 138 ELK RIVER 8700 4.0 3.2 125 5.9 5.3 111 JOE WRIGHT 10120 4.2 6.4 66 8.5 7.9 108 NORTH FRENCH CREEK 10130 6.0 8.0 75 7.0 7.6 92 OLD BATTLE 10000 8.7 9.3 94 10.7 9.5 113 SAGE CREEK BASIN 7850 4.5 3.0 150 4.8 3.7 130 SOUTH BRUSH CREEK 8440 2.1 2.9 72 4.6 5.3 87 TOWER 10500 8.7 12.9 67 11.2 10.9 103 WEBBER SPRINGS 9250 6.2 6.8 91 9.4 7.9 119 WILLOW CREEK PASS 9540 2.4 3.7 65 4.5 4.4 102 ----- ----- Basin wide percent of average 85 109 LOWER N. PLATTE - SWEETWATER - LARAMIE BROOKLYN LAKE 10240 4.2 6.1 69 6.4 6.4 100 CASPER MTN. 7900 5.2 4.7 111 8.3 5.3 157 DEADMAN HILL 10220 7.2 5.1 141 7.4 5.4 137 DEER PARK 9700 3.1 4.6 67 6.2 7.2 86 LAPRELE CREEK 8375 2.2 3.3 67 4.7 4.3 109 RENO HILL 8400 5.0 4.3 116 6.6 5.2 127 ROACH 9700 5.4 4.4 123 7.5 5.3 142 SAND LAKE 10050 7.8 9.4 83 8.3 7.3 114 SOUTH PASS 9040 3.9 5.0 78 5.2 6.1 85 WINDY PEAK 7900 2.0 2.3 87 3.7 3.8 97 ----- ----- Basin wide percent of average 93 114 LITTLE SNAKE RIVER BATTLE MOUNTAIN 7440 3.9 1.9 205 4.9 4.5 109 DIVIDE PEAK 8880 5.4 5.2 104 8.7 6.3 138 OLD BATTLE 10000 8.7 9.3 94 10.7 9.5 113 SANDSTONE RS 8150 2.2 2.4 92 4.6 5.6 82 WHISKEY PARK 8950 5.2 6.3 83 8.9 8.0 111 ----- ----- Basin wide percent of average 101 112 UPPER GREEN RIVER BIG SANDY OPENING 9080 2.9 4.1 71 3.9 4.4 89 BLIND BULL SUM 8650 4.7 7.3 64 5.2 6.6 79 EAST RIM DIVIDE 7930 2.2 3.3 67 3.9 3.6 108 ELKHART PARK G.S. 9400 3.1 3.6 86 4.9 4.5 109 GROS VENTRE SUMMIT 8750 2.9 4.0 72 4.2 4.3 98 GUNSIGHT PASS 9820 3.8 -M * 5.1 -M * KENDALL R.S. 7740 3.3 3.3 100 5.0 4.2 119 LOOMIS PARK 8240 3.2 4.5 71 5.5 5.0 110 NEW FORK LAKE 8340 2.9 2.9 100 4.3 3.9 110 POCKET CREEK 9360 2.5 -M * 3.8 -M * SNIDER BASIN 8060 2.4 3.7 65 3.5 4.6 76 SPRING CREEK DIVIDE 9000 5.0 7.0 71 6.6 7.5 88 TRIPLE PEAK 8500 5.2 6.5 80 7.3 6.7 109 ----- ----- Basin wide percent of average 75 98 LOWER GREEN RIVER HAMS FORK 7840 2.2 2.6 85 4.2 3.6 117 HEWINTA 9519 2.2 2.2 100 5.1 5.0 102 HICKERSON PARK 9145 2.8 1.5 187 6.0 3.3 182 HOLE-IN-ROCK 9150 2.0 1.5 133 5.4 3.0 180 INDIAN CREEK 9425 5.4 6.9 78 6.0 7.1 85 KELLEY R.S. 8180 3.1 4.3 72 5.5 5.8 95 STEEL CREEK PARK 10200 3.1 4.1 76 5.8 5.2 112 ----- ----- Basin wide percent of average 90 115 UPPER BEAR RIVER BUG LAKE 7950 3.6 4.2 86 6.0 5.8 103 HAYDEN FORK 9212 2.8 3.2 88 7.2 6.3 114 KELLEY R.S. 8180 3.1 4.3 72 5.5 5.8 95 LILY LAKE 9156 2.1 3.0 70 5.3 5.8 91 MONTE CRISTO 8960 4.6 5.4 85 6.5 7.4 88 SALT RIVER SUMMIT 7760 2.1 2.7 78 3.9 5.1 76 TRIAL LAKE 9992 4.5 5.8 78 5.4 6.9 78 ----- ----- Basin wide percent of average 80 92 ----------------------------------------------------------------------------- -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.