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: NOVEMBER 27 , 2010 ----------------------------------------------------------------------------- BASIN ELEV. SNOW WATER EQUIVALENT TOTAL PRECIPITATION Data Site Name (Ft) % % Current Average Avg Current Average Avg ----------------------------------------------------------------------------- WYOMING SNAKE RIVER BASE CAMP 7030 4.4 3.5 126 7.4 5.5 135 COTTONWOOD CREEK 7670 7.9 4.0 198 11.7 7.3 160 GRAND TARGHEE 9260 14.4 -M * 10.7 -M * GRANITE CREEK 6770 3.8 2.9 131 6.4 4.8 133 GRASSY LAKE 7265 7.0 6.7 104 10.2 8.7 117 GROS VENTRE SUMMIT 8750 4.3 3.5 123 4.5 3.9 115 GUNSIGHT PASS 9820 4.5 -M * 5.0 -M * LEWIS LAKE DIVIDE 7850 7.6 6.7 113 10.2 8.9 115 PHILLIPS BENCH 8200 8.9 5.6 159 10.3 6.7 154 SALT RIVER SUMMIT 7760 3.7 2.2 168 6.9 4.5 153 SNAKE RIVER STATION 6920 3.6 3.5 103 7.9 5.8 136 SPRING CREEK DIVIDE 9000 8.1 6.0 135 9.3 6.6 141 THUMB DIVIDE 7980 5.6 3.5 160 6.6 4.9 135 TOGWOTEE PASS 9580 8.4 6.4 131 9.3 6.7 139 TWO OCEAN PLATEAU 9240 10.4 7.6 137 8.5 7.5 113 WILLOW CREEK 8380 7.9 6.8 116 12.8 8.5 151 ----- ----- Basin wide percent of average 133 135 UPPER YELLOWSTONE-MADISON BEARTOOTH LAKE 9360 6.7 6.4 105 6.8 5.3 128 BLACK BEAR 8170 10.9 8.7 125 12.7 9.5 134 CANYON 7870 4.0 2.9 138 5.6 4.4 127 FISHER CREEK 9100 9.4 8.2 115 10.4 8.8 118 MADISON PLATEAU 7750 6.9 5.4 128 8.9 6.5 137 NORTHEAST ENTRANCE 7350 2.6 2.1 124 4.9 3.7 132 PARKER PEAK 9400 7.3 6.1 120 7.6 5.0 152 SYLVAN LAKE 8420 5.5 5.9 93 8.0 6.4 125 THUMB DIVIDE 7980 5.6 3.5 160 6.6 4.9 135 TWO OCEAN PLATEAU 9240 10.4 7.6 137 8.5 7.5 113 WHISKEY CREEK 6800 4.1 3.4 121 7.0 5.4 130 WHITE MILL 8700 6.6 5.9 112 7.9 6.9 114 WOLVERINE 7650 3.5 2.6 135 4.4 4.1 107 ----- ----- Basin wide percent of average 122 127 WIND RIVER BURROUGHS CREEK 8750 -M 3.4 * 3.8 4.4 86 CASTLE CREEK 8400 1.4 -M * 2.2 -M * COLD SPRINGS 9630 2.1 2.9 72 2.5 3.9 64 DEER PARK 9700 -M 4.3 * 6.5 6.6 98 HOBBS PARK 10100 4.4 4.9 90 4.2 4.3 98 LITTLE WARM 9370 3.3 3.1 106 3.3 4.2 79 SOUTH PASS 9040 4.2 4.7 89 4.2 5.5 76 ST. LAWRENCE ALT 8620 1.2 2.4 50 2.0 3.3 61 TOGWOTEE PASS 9580 8.4 6.4 131 9.3 6.7 139 TOWNSEND CREEK 8700 2.2 2.7 81 4.1 4.2 98 ----- ----- Basin wide percent of average 95 93 BIGHORN BASIN BALD MTN. 9380 6.4 5.5 116 6.0 4.9 122 BEAR TRAP MEADOW 8200 1.2 1.5 80 2.8 3.2 88 BLACKWATER 9780 7.0 7.2 97 6.7 6.5 103 BONE SPRINGS DIV 9350 4.7 5.0 94 3.9 4.6 85 EVENING STAR 9200 7.4 7.6 97 8.9 7.5 119 GRAVE SPRINGS 8550 2.4 2.6 92 3.0 3.4 88 KIRWIN 9550 3.5 3.9 90 3.8 3.8 100 MARQUETTE 8760 .6 3.5 17 2.1 3.9 54 MIDDLE POWDER 7760 3.4 3.3 103 2.7 4.7 57 OWL CREEK 8975 1.0 1.8 56 1.7 2.1 81 POWDER RIVER PASS 9480 3.6 3.0 120 4.6 3.8 121 SHELL CREEK 9580 4.4 4.8 92 4.2 4.2 100 SYLVAN LAKE 8420 5.5 5.9 93 8.0 6.4 125 SYLVAN ROAD 7120 3.1 3.2 97 5.6 6.0 93 TIMBER CREEK 7950 .9 2.2 41 1.3 2.9 45 YOUNTS PEAK 8350 4.8 4.4 109 4.4 4.7 94 ----- ----- Basin wide percent of average 92 96 SHOSHONE RIVER BLACKWATER 9780 7.0 7.2 97 6.7 6.5 103 EVENING STAR 9200 7.4 7.6 97 8.9 7.5 119 KIRWIN 9550 3.5 3.9 90 3.8 3.8 100 MARQUETTE 8760 .6 3.5 17 2.1 3.9 54 SYLVAN LAKE 8420 5.5 5.9 93 8.0 6.4 125 SYLVAN ROAD 7120 3.1 3.2 97 5.6 6.0 93 YOUNTS PEAK 8350 4.8 4.4 109 4.4 4.7 94 ----- ----- Basin wide percent of average 89 102 POWDER-TONGUE BEAR TRAP MEADOW 8200 1.2 1.5 80 2.8 3.2 88 BIG GOOSE 7990 1.0 2.1 48 2.8 2.9 97 BONE SPRINGS DIV 9350 4.7 5.0 94 3.9 4.6 85 BURGESS JUNCTION 7880 1.8 3.3 55 3.3 4.0 83 CLOUD PEAK RESERVOIR 9860 4.1 3.5 117 4.7 4.6 102 DOME LAKE 8880 1.6 3.9 41 3.7 4.6 80 GRAVE SPRINGS 8550 2.4 2.6 92 3.0 3.4 88 HANSEN SAWMILL 8360 1.2 1.9 63 1.7 3.1 55 LITTLE GOOSE 8870 1.2 -M * 4.6 -M * MIDDLE POWDER 7760 3.4 3.3 103 2.7 4.7 57 POWDER RIVER PASS 9480 3.6 3.0 120 4.6 3.8 121 SOLDIER PARK 8720 1.1 -M * 2.4 -M * SUCKER CREEK 8880 2.8 3.0 93 3.5 4.3 81 TIE CREEK 6870 1.2 1.1 109 2.7 3.6 75 ----- ----- Basin wide percent of average 85 84 BELLE FOURCHE BLIND PARK 6890 1.1 1.8 61 6.4 4.3 149 COLE CANYON 5910 1.7 1.9 89 3.6 2.9 124 NORTH RAPID CREEK 6130 1.3 1.5 87 5.2 3.7 141 ----- ----- Basin wide percent of average 79 139 UPPER N. PLATTE RIVER COLUMBINE 9160 7.6 4.4 173 10.8 5.8 186 DIVIDE PEAK 8880 4.2 4.6 91 7.5 5.7 132 ELK RIVER 8700 4.3 2.7 159 7.6 4.8 158 JOE WRIGHT 10120 8.9 5.9 151 13.3 7.2 185 NORTH FRENCH CREEK 10130 10.6 7.2 147 11.4 6.9 165 OLD BATTLE 10000 9.8 8.2 120 11.7 8.4 139 SAGE CREEK BASIN 7850 2.4 2.7 89 5.7 3.3 173 SOUTH BRUSH CREEK 8440 4.4 2.6 169 7.4 4.9 151 TOWER 10500 15.0 11.4 132 17.3 9.7 178 WEBBER SPRINGS 9250 6.1 6.0 102 10.2 7.1 144 WILLOW CREEK PASS 9540 5.8 3.3 176 6.8 4.1 166 ----- ----- Basin wide percent of average 134 162 LOWER N. PLATTE - SWEETWATER - LARAMIE BROOKLYN LAKE 10240 6.2 5.4 115 8.2 5.7 144 CASPER MTN. 7900 2.3 4.2 55 5.3 4.9 108 DEADMAN HILL 10220 4.4 4.7 94 8.6 4.9 176 DEER PARK 9700 -M 4.3 * 6.5 6.6 98 LAPRELE CREEK 8375 2.1 2.9 72 3.8 4.0 95 RENO HILL 8400 3.3 3.9 85 5.2 4.8 108 ROACH 9700 5.6 3.9 144 8.2 4.9 167 SAND LAKE 10050 10.5 8.4 125 10.3 6.6 156 SOUTH PASS 9040 4.2 4.7 89 4.2 5.5 76 WINDY PEAK 7900 2.0 2.1 95 4.4 3.5 126 ----- ----- Basin wide percent of average 101 126 LITTLE SNAKE RIVER BATTLE MOUNTAIN 7440 2.1 1.7 124 4.9 4.0 123 DIVIDE PEAK 8880 4.2 4.6 91 7.5 5.7 132 OLD BATTLE 10000 9.8 8.2 120 11.7 8.4 139 SANDSTONE RS 8150 1.5 2.1 71 7.1 5.1 139 WHISKEY PARK 8950 4.5 5.5 82 10.7 7.1 151 ----- ----- Basin wide percent of average 100 138 UPPER GREEN RIVER BIG SANDY OPENING 9080 3.7 3.6 103 4.7 4.0 118 BLIND BULL SUM 8650 7.0 6.2 113 5.0 5.8 86 EAST RIM DIVIDE 7930 2.5 2.8 89 3.1 3.2 97 ELKHART PARK G.S. 9400 2.5 3.1 81 3.4 4.1 83 GROS VENTRE SUMMIT 8750 4.3 3.5 123 4.5 3.9 115 GUNSIGHT PASS 9820 4.5 -M * 5.0 -M * KENDALL R.S. 7740 1.8 2.8 64 3.8 3.7 103 LOOMIS PARK 8240 3.9 3.8 103 4.9 4.5 109 NEW FORK LAKE 8340 2.6 2.4 108 3.0 3.6 83 POCKET CREEK 9360 3.3 -M * 4.4 -M * SNIDER BASIN 8060 5.0 3.2 156 6.1 4.1 149 SPRING CREEK DIVIDE 9000 8.1 6.0 135 9.3 6.6 141 TRIPLE PEAK 8500 6.9 5.5 125 8.9 5.9 151 ----- ----- Basin wide percent of average 113 115 LOWER GREEN RIVER HAMS FORK 7840 3.1 2.1 148 4.8 3.3 145 HEWINTA 9519 .9 2.0 45 5.4 4.6 117 HICKERSON PARK 9145 .7 1.4 50 2.8 3.1 90 HOLE-IN-ROCK 9150 1.6 1.3 123 3.3 2.8 118 INDIAN CREEK 9425 8.2 5.9 139 8.4 6.3 133 KELLEY R.S. 8180 5.1 3.7 138 7.4 5.2 142 STEEL CREEK PARK 10200 3.1 3.7 84 6.6 4.8 138 ----- ----- Basin wide percent of average 113 129 UPPER BEAR RIVER BUG LAKE 7950 5.9 3.6 164 8.9 5.2 171 HAYDEN FORK 9212 4.0 2.7 148 10.0 5.6 179 KELLEY R.S. 8180 5.1 3.7 138 7.4 5.2 142 LILY LAKE 9156 3.8 2.6 146 7.6 5.3 143 MONTE CRISTO 8960 8.4 4.6 183 11.4 6.6 173 SALT RIVER SUMMIT 7760 3.7 2.2 168 6.9 4.5 153 TRIAL LAKE 9992 8.9 5.1 175 11.0 6.1 180 ----- ----- Basin wide percent of average 162 164 ----------------------------------------------------------------------------- -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.