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: NOVEMBER 23 , 2011 ----------------------------------------------------------------------------- BASIN ELEV. SNOW WATER EQUIVALENT TOTAL PRECIPITATION Data Site Name (Ft) % % Current Average Avg Current Average Avg ----------------------------------------------------------------------------- WYOMING SNAKE RIVER BASE CAMP 7030 4.6 3.0 153 7.8 4.9 159 COTTONWOOD CREEK 7670 3.1 3.4 91 7.7 6.6 117 GRAND TARGHEE 9260 9.9 -M * 9.1 -M * GRANITE CREEK 6770 3.1 2.5 124 5.1 4.3 119 GRASSY LAKE 7265 4.9 5.7 86 10.1 7.8 129 GROS VENTRE SUMMIT 8750 2.6 3.1 84 4.1 3.6 114 GUNSIGHT PASS 9820 3.3 -M * 4.8 -M * LEWIS LAKE DIVIDE 7850 5.3 5.7 93 10.4 7.8 133 PHILLIPS BENCH 8200 4.3 4.9 88 6.8 5.9 115 SALT RIVER SUMMIT 7760 2.2 1.9 116 4.1 4.1 100 SNAKE RIVER STATION 6920 3.6 2.9 124 8.0 5.2 154 SPRING CREEK DIVIDE 9000 4.7 5.2 90 6.4 6.0 107 THUMB DIVIDE 7980 3.9 3.0 130 6.6 4.4 150 TOGWOTEE PASS 9580 5.8 5.8 100 7.5 6.0 125 TWO OCEAN PLATEAU 9240 10.2 6.8 150 9.0 6.7 134 WILLOW CREEK 8380 4.7 5.9 80 9.9 7.7 129 ----- ----- Basin wide percent of average 105 128 UPPER YELLOWSTONE-MADISON BEARTOOTH LAKE 9360 6.5 5.7 114 6.8 4.7 145 BLACK BEAR 8170 8.6 7.5 115 11.2 8.5 132 CANYON 7870 2.8 2.4 117 4.6 4.0 115 FISHER CREEK 9100 8.6 7.0 123 11.0 7.9 139 MADISON PLATEAU 7750 5.8 4.5 129 9.7 5.8 167 NORTHEAST ENTRANCE 7350 1.7 1.6 106 3.9 3.3 118 PARKER PEAK 9400 6.7 5.5 122 8.7 4.6 189 SYLVAN LAKE 8420 4.3 5.1 84 8.4 5.8 145 THUMB DIVIDE 7980 3.9 3.0 130 6.6 4.4 150 TWO OCEAN PLATEAU 9240 10.2 6.8 150 9.0 6.7 134 WHISKEY CREEK 6800 4.1 2.8 146 7.5 4.8 156 WHITE MILL 8700 4.8 5.1 94 7.2 6.2 116 WOLVERINE 7650 4.3 2.1 205 5.8 3.7 157 ----- ----- Basin wide percent of average 122 143 WIND RIVER BURROUGHS CREEK 8750 3.0 2.9 103 3.9 4.0 98 CASTLE CREEK 8400 1.7 -M * 2.8 -M * COLD SPRINGS 9630 2.1 2.5 84 3.4 3.6 94 DEER PARK 9700 2.7 4.1 66 5.6 6.0 93 HOBBS PARK 10100 4.6 4.4 105 4.8 4.0 120 LITTLE WARM 9370 1.7 2.7 63 3.8 3.8 100 SOUTH PASS 9040 3.4 3.9 87 4.7 4.9 96 ST. LAWRENCE ALT 8620 .9 2.1 43 2.5 3.1 81 TOGWOTEE PASS 9580 5.8 5.8 100 7.5 6.0 125 TOWNSEND CREEK 8700 1.8 2.4 75 4.2 3.9 108 ----- ----- Basin wide percent of average 84 103 BIGHORN BASIN BALD MTN. 9380 6.2 5.1 122 6.0 4.5 133 BEAR TRAP MEADOW 8200 1.4 1.4 100 3.2 3.0 107 BLACKWATER 9780 8.3 6.4 130 8.0 5.9 136 BONE SPRINGS DIV 9350 6.5 4.6 141 6.4 4.3 149 EVENING STAR 9200 7.3 6.6 111 10.1 6.7 151 GRAVE SPRINGS 8550 1.8 2.4 75 3.9 3.2 122 KIRWIN 9550 4.9 3.5 140 6.3 3.5 180 MARQUETTE 8760 1.4 -M * 5.4 3.7 146 MIDDLE POWDER 7760 2.2 3.0 73 5.6 4.4 127 OWL CREEK 8975 1.6 1.6 100 2.4 2.0 120 POWDER RIVER PASS 9480 3.7 2.7 137 5.3 3.5 151 SHELL CREEK 9580 6.9 4.4 157 6.5 3.9 167 SYLVAN LAKE 8420 4.3 5.1 84 8.4 5.8 145 SYLVAN ROAD 7120 3.0 2.5 120 5.6 5.4 104 TIMBER CREEK 7950 1.5 2.1 71 5.0 2.7 185 YOUNTS PEAK 8350 4.6 3.7 124 5.9 4.3 137 ----- ----- Basin wide percent of average 117 141 SHOSHONE RIVER BLACKWATER 9780 8.3 6.4 130 8.0 5.9 136 EVENING STAR 9200 7.3 6.6 111 10.1 6.7 151 KIRWIN 9550 4.9 3.5 140 6.3 3.5 180 MARQUETTE 8760 1.4 -M * 5.4 3.7 146 SYLVAN LAKE 8420 4.3 5.1 84 8.4 5.8 145 SYLVAN ROAD 7120 3.0 2.5 120 5.6 5.4 104 YOUNTS PEAK 8350 4.6 3.7 124 5.9 4.3 137 ----- ----- Basin wide percent of average 117 141 POWDER-TONGUE BEAR TRAP MEADOW 8200 1.4 1.4 100 3.2 3.0 107 BIG GOOSE 7990 3.5 1.9 184 7.2 2.8 257 BONE SPRINGS DIV 9350 6.5 4.6 141 6.4 4.3 149 BURGESS JUNCTION 7880 3.5 3.0 117 6.5 3.7 176 CLOUD PEAK RESERVOIR 9860 5.1 3.2 159 6.6 4.4 150 DOME LAKE 8880 4.8 3.6 133 7.8 4.3 181 GRAVE SPRINGS 8550 1.8 2.4 75 3.9 3.2 122 HANSEN SAWMILL 8360 2.5 1.6 156 4.3 2.9 148 LITTLE GOOSE 8870 4.4 -M * 8.2 -M * MIDDLE POWDER 7760 2.2 3.0 73 5.6 4.4 127 POWDER RIVER PASS 9480 3.7 2.7 137 5.3 3.5 151 SOLDIER PARK 8720 3.5 -M * 5.4 -M * SUCKER CREEK 8880 5.6 2.7 207 6.9 4.0 172 TIE CREEK 6870 1.9 1.1 173 7.1 3.4 209 ----- ----- Basin wide percent of average 136 161 BELLE FOURCHE BLIND PARK 6890 1.6 1.7 94 2.4 4.1 59 COLE CANYON 5910 .9 1.7 53 2.6 2.8 93 NORTH RAPID CREEK 6130 2.1 1.3 162 2.0 3.5 57 ----- ----- Basin wide percent of average 98 67 UPPER N. PLATTE RIVER BLACKHALL MTN 9820 7.4 -M * 9.1 -M * CINNABAR PARK 9574 3.8 4.5 84 6.5 5.6 116 COLUMBINE 9160 4.1 3.8 108 6.4 5.2 123 DIVIDE PEAK 8880 4.4 4.1 107 7.7 5.2 148 ELK RIVER 8700 3.8 2.3 165 5.7 4.4 130 JOE WRIGHT 10120 3.3 5.4 61 7.5 6.6 114 NORTH FRENCH CREEK 10130 5.5 6.5 85 6.6 6.4 103 OLD BATTLE 10000 8.0 7.4 108 10.1 7.6 133 SAGE CREEK BASIN 7850 2.8 2.4 117 4.5 3.0 150 SOUTH BRUSH CREEK 8440 2.0 2.3 87 4.7 4.6 102 TOWER 10500 7.8 10.2 76 10.5 8.8 119 WEBBER SPRINGS 9250 5.4 5.3 102 8.4 6.4 131 WILLOW CREEK PASS 9540 2.0 3.0 67 4.0 3.8 105 ----- ----- Basin wide percent of average 92 122 LOWER N. PLATTE - SWEETWATER - LARAMIE BROOKLYN LAKE 10240 3.6 4.9 73 5.7 5.2 110 CASPER MTN. 7900 3.1 3.9 79 7.0 4.6 152 DEADMAN HILL 10220 6.2 4.4 141 6.3 4.6 137 DEER PARK 9700 2.7 4.1 66 5.6 6.0 93 LAPRELE CREEK 8375 1.9 2.6 73 4.3 3.7 116 RENO HILL 8400 3.5 3.6 97 5.4 4.5 120 ROACH 9700 4.6 3.4 135 6.7 4.5 149 SAND LAKE 10050 6.9 7.6 91 7.5 6.0 125 SOUTH PASS 9040 3.4 3.9 87 4.7 4.9 96 WINDY PEAK 7900 1.8 1.8 100 3.4 3.2 106 ----- ----- Basin wide percent of average 94 120 LITTLE SNAKE RIVER BATTLE MOUNTAIN 7440 4.0 1.5 267 5.0 3.7 135 DIVIDE PEAK 8880 4.4 4.1 107 7.7 5.2 148 OLD BATTLE 10000 8.0 7.4 108 10.1 7.6 133 SANDSTONE RS 8150 2.4 1.8 133 4.6 4.7 98 WHISKEY PARK 8950 4.9 4.9 100 8.4 6.3 133 ----- ----- Basin wide percent of average 120 130 UPPER GREEN RIVER BIG SANDY OPENING 9080 3.1 3.2 97 4.0 3.6 111 BLIND BULL SUM 8650 4.2 5.4 78 4.9 5.1 96 EAST RIM DIVIDE 7930 1.9 2.4 79 3.7 2.9 128 ELKHART PARK G.S. 9400 2.9 2.7 107 4.8 3.8 126 GROS VENTRE SUMMIT 8750 2.6 3.1 84 4.1 3.6 114 GUNSIGHT PASS 9820 3.3 -M * 4.8 -M * KENDALL R.S. 7740 2.9 2.4 121 4.8 3.4 141 LOOMIS PARK 8240 2.8 3.3 85 5.1 4.1 124 NEW FORK LAKE 8340 2.8 2.1 133 4.2 3.3 127 POCKET CREEK 9360 3.1 -M * 4.1 -M * SNIDER BASIN 8060 2.3 2.7 85 3.6 3.7 97 SPRING CREEK DIVIDE 9000 4.7 5.2 90 6.4 6.0 107 TRIPLE PEAK 8500 4.7 4.8 98 7.0 5.3 132 ----- ----- Basin wide percent of average 94 117 LOWER GREEN RIVER HAMS FORK 7840 2.1 1.8 117 4.0 3.0 133 HEWINTA 9519 1.5 1.8 83 4.9 4.3 114 HICKERSON PARK 9145 1.5 1.2 125 5.4 2.9 186 HOLE-IN-ROCK 9150 1.4 1.2 117 5.0 2.7 185 INDIAN CREEK 9425 5.1 5.1 100 5.9 5.7 104 KELLEY R.S. 8180 3.1 3.2 97 5.6 4.7 119 STEEL CREEK PARK 10200 2.8 3.3 85 5.4 4.5 120 ----- ----- Basin wide percent of average 99 130 UPPER BEAR RIVER BUG LAKE 7950 3.6 3.2 112 5.9 4.8 123 HAYDEN FORK 9212 2.7 2.4 112 6.9 5.1 135 KELLEY R.S. 8180 3.1 3.2 97 5.6 4.7 119 LILY LAKE 9156 1.9 2.3 83 5.0 4.8 104 MONTE CRISTO 8960 4.2 4.0 105 6.3 5.9 107 SALT RIVER SUMMIT 7760 2.2 1.9 116 4.1 4.1 100 TRIAL LAKE 9992 4.6 4.5 102 5.4 5.6 96 ----- ----- Basin wide percent of average 104 112 ----------------------------------------------------------------------------- -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.